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Smith C, Lowdon J, Noordhoek J, Wilschanski M. Evolution of nutritional management in children with cystic fibrosis - a narrative review. J Hum Nutr Diet 2024; 37:804-814. [PMID: 38664916 DOI: 10.1111/jhn.13298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 05/22/2024]
Abstract
Nutrition has played a central role in the management and outcomes of people with cystic fibrosis (pwCF) since the 1970s. Advances in therapies and practices in recent decades have led to a significant change in the patient landscape with dramatic improvements in life expectancy, as well as quality of life, bringing with it new issues. Historically, cystic fibrosis was a condition associated with childhood and malnutrition; however, changes in patient demographics, nutritional assessment and fundamental nutritional management have evolved, and it has become an increasingly prevalent adult disease with new nutritional challenges, including obesity. This paper aims to describe these changes and the impact and challenges they bring for those working in this field. Nutritional professionals will need to evolve, adapt and remain agile to the wider range of situations and support required for a new generation of pwCF. Specialised nutrition support will continue to be required, and it will be additionally important to improve and optimise quality of life and long-term health.
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Affiliation(s)
- Chris Smith
- Department of Nutrition and Dietetics, Royal Alexandra Children's Hospital, Brighton, UK
| | - Jacqueline Lowdon
- Department of Nutrition and Dietetics, Leeds Children's Hospital, Leeds, UK
| | | | - Michael Wilschanski
- Department of Gastroenterology, Hadassah, Hebrew University Hospital, Jerusalem, Israel
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Matthews J, Dobra R, Wilson G, Allen L, Bossley C, Brendell R, Brugha R, Brown D, Brown S, Cadiente S, Cameron L, Davies G, Dawson C, Elborn S, Hughes D, Longmate J, Macedo P, Pappas L, Pao C, Round C, Ruiz G, Saunders C, Shafi N, Simmonds N, Waller M, Watson D, Davies JC. Levelling the playing field through the London Network of the UK clinical trials accelerator platform. Contemp Clin Trials Commun 2024; 39:101301. [PMID: 38711836 PMCID: PMC11070816 DOI: 10.1016/j.conctc.2024.101301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/17/2024] [Accepted: 04/21/2024] [Indexed: 05/08/2024] Open
Abstract
Cystic fibrosis (CF) is a multisystem, genetic disease with a significantly reduced life expectancy. Despite substantial progress in therapies in the last 10-15 years, there is still no cure. There are dozens of drugs in the development pipeline and multiple clinical trials are being conducted across the globe. The UK Cystic Fibrosis Trust's (CFT) Clinical Trials Accelerator Platform (CTAP) is a national initiative bringing together 25 UK based CF centres to support the CF community in accessing and participating in CF clinical trials. CTAP enables more CF centres to run a broader portfolio of trials and increases the range of CF studies available for UK patients. There are four large specialist CF centres based in London, all within a small geographical region as well as two smaller centres which deliver CF care. At the launch of CTAP, these centres formed a sub-network in a consortium-style collaboration. The purpose of the network was to ensure equity of access to trials for patients across the UK's capital, and to share experience and knowledge. Four years into the programme we have reviewed our practices through working group meetings and an online survey. We sought to identify strengths and areas for improvement. We share our findings here, as we believe they are relevant to others delivering research in regions outside of London and in other chronic diseases.
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Affiliation(s)
- Jessie Matthews
- Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
| | - Rebecca Dobra
- Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
| | - Gemma Wilson
- Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
| | | | - Cara Bossley
- King's College Hospital, NHS Foundation Trust, London, UK
| | | | - Rossa Brugha
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Danielle Brown
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Sarah Brown
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | | | | | - Gwyneth Davies
- Royal London Hospital, Barts Health NHS Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - Charlotte Dawson
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | | | - Dominic Hughes
- King's College Hospital, NHS Foundation Trust, London, UK
| | | | | | | | - Caroline Pao
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | | | - Gary Ruiz
- King's College Hospital, NHS Foundation Trust, London, UK
| | - Clare Saunders
- Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
- National Heart & Lung Institute, Imperial College London, London, UK
- European CF Society Lung Clearance Index Central Overreading Centre, UK
| | - Nadia Shafi
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Nicholas Simmonds
- Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Michael Waller
- King's College Hospital, NHS Foundation Trust, London, UK
| | - Danie Watson
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Jane C. Davies
- Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
- National Heart & Lung Institute, Imperial College London, London, UK
- European CF Society Lung Clearance Index Central Overreading Centre, UK
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Bader-Larsen K, Faurholt-Jepsen D, Bryrup T, Henriksen EH, Olesen HV, Pressler T, Skov M, Olsen MF. Improved early growth in Danish children with cystic fibrosis from 2000-2022. J Cyst Fibros 2024:S1569-1993(24)00072-9. [PMID: 38789318 DOI: 10.1016/j.jcf.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Improved growth in children with CF may have resulted from advances in treatment for cystic fibrosis (CF) over the past two decades, including the implementation of newborn screening in Denmark in 2016. This observational cohort study focuses on changes in early growth in Danish children with CF born between 2000 and January 2022. METHODS Age, length/height, and weight data of children 0-5 years old were obtained from the Danish CF Cohort. Data were stratified to four birth cohorts born between 2000 and 2022. Weight-for-age (WAZ), length-for-age (LAZ), height-for-age (HAZ) and body-mass-index (BMZ) z-scores were computed using WHO growth curves. Cubic spline mixed effects models were used to evaluate growth over 5 years between birth cohorts. RESULTS We included 255 children in the analyses. Cubic spline mixed effects models show that catch-up growth improved in birth cohorts over time, with the 2016-2022 birth cohort achieving growth reference curve values in WAZ, LAZ/HAZ and BMZ the earliest. The proportion of underweight and stunting observations among children born 2000-2004 decreased by the 2016-2022 birth cohort, while the proportion of overweight, low BMZ and high BMZ observations increased. CONCLUSION Advances in care for young children with CF have led to improvements in growth - with the 2016-2022 birth cohort approaching potential for overweight. Nonetheless, low BMZ remains. Immediate, individualized nutrition care throughout early childhood remain crucial in mitigating malnutrition.
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Affiliation(s)
- Karlen Bader-Larsen
- Cystic Fibrosis Centre Copenhagen, Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
| | - Daniel Faurholt-Jepsen
- Cystic Fibrosis Centre Copenhagen, Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Bryrup
- Cystic Fibrosis Centre Copenhagen, Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Esben Herborg Henriksen
- Cystic Fibrosis Centre Copenhagen, Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hanne Vebert Olesen
- Cystic Fibrosis Centre Aarhus, Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Tacjana Pressler
- Cystic Fibrosis Centre Copenhagen, Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark; Cystic Fibrosis Centre Copenhagen, Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Copenhagen, Denmark
| | - Marianne Skov
- Cystic Fibrosis Centre Copenhagen, Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Copenhagen, Denmark
| | - Mette Frahm Olsen
- Cystic Fibrosis Centre Copenhagen, Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark; Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
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Azoicai AN, Lupu A, Trandafir LM, Alexoae MM, Alecsa M, Starcea IM, Cuciureanu M, Knieling A, Salaru DL, Hanganu E, Mocanu A, Lupu VV, Ioniuc I. Cystic fibrosis management in pediatric population-from clinical features to personalized therapy. Front Pediatr 2024; 12:1393193. [PMID: 38798310 PMCID: PMC11116730 DOI: 10.3389/fped.2024.1393193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/24/2024] [Indexed: 05/29/2024] Open
Abstract
Cystic fibrosis (CF) is an autosomal recessive disease caused by mutations of the gene encoding the cystic fibrosis transmembrane conductance regulator (CFTR). In 1949, it's been identified as a monogenic disease and was thought to primarily affect individuals of Northern European descent. It was the most prevalent autosomal recessive disease that shortens life. With the availability of multiple testing methodologies nowadays, there is a chance to create novel and enhanced treatment options. Even in the absence of a high sweat chloride test (SCT) result, the discovery of two causal mutations is diagnostic for cystic fibrosis (CF). For a CF diagnosis, however, at least two positive E sweat chloride tests are still required. In order to achieve early and active intervention to manage cystic fibrosis (CF) and its comorbidities, treatment regimens for pediatric patients should be evaluated, improved, and closely monitored. New developments in the treatment of cystic fibrosis (CF) have led to the development of medications derived from molecules that target the pathogenetic pathway of the illness. These options are very efficient and allow pediatric patients to receive individualized care. However, in order to better direct patient care and enhance patient outcomes, it is crucial to research uncommon CF mutations, which can provide crucial information about the prognosis of the disease and the relationships between genotype and phenotype. To ensure the success of creating novel, safer, and more efficient treatment approaches, a deeper understanding of the pathogeny of the illness is required. In the age of customized medicine, genetic research will be essential to improving patient care and quality of life for those with uncommon mutations.
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Affiliation(s)
| | - Ancuta Lupu
- Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | | | | | - Mirabela Alecsa
- Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | | | - Magdalena Cuciureanu
- Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Anton Knieling
- Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Delia Lidia Salaru
- Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Elena Hanganu
- Department of Biomedical Sciences, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Adriana Mocanu
- Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Vasile Valeriu Lupu
- Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
| | - Ileana Ioniuc
- Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania
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McNally P, Singh A, McColley SA, Davies JC, Higgins M, Liu M, Lu J, Rodriguez-Romero V, Shih JL, Rosenfeld M. Safety and efficacy of ivacaftor in infants aged 1 to less than 4 months with cystic fibrosis. J Cyst Fibros 2024; 23:429-435. [PMID: 38580563 DOI: 10.1016/j.jcf.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/08/2024] [Accepted: 03/25/2024] [Indexed: 04/07/2024]
Abstract
BACKGROUND Ivacaftor (IVA) has been shown to be safe and efficacious in children aged ≥4 months with cystic fibrosis (CF) and CFTR gating variants. We evaluated safety, pharmacokinetics (PK), and efficacy of IVA in a small cohort of infants aged 1 to <4 months with CF. METHODS In this phase 3, open-label study, infants 1 to <4 months with CF and an IVA-responsive CFTR variant received an initial low dose of IVA based on age and weight. Because IVA is a sensitive CYP3A substrate and CYP3A maturation is uncertain in infants, doses were adjusted at day 15 to better match median adult exposures based on individual PK measurements taken on day 4. Primary endpoints were safety and PK measurements. RESULTS Seven infants (residual function CFTR variants [n=5]; minimal function CFTR variants [n=2]) received ≥1 dose of IVA. Six infants had doses adjusted at day 15 and one infant did not require dose adjustment; subsequent PK analyses showed mean trough concentrations for IVA and metabolites were within range of prior clinical experience. Four infants (57.1%) had adverse events (AEs); no serious AEs were noted. One infant discontinued study drug due to a non-serious AE of elevated alanine aminotransferase >8x the upper limit of normal. Mean sweat chloride concentration decreased (-40.3 mmol/L [SD: 29.2]) through week 24. Improvements in biomarkers of pancreatic function and intestinal inflammation, as well as growth parameters, were observed. CONCLUSIONS In this small, open-label study, IVA dosing in infants achieved exposures previously shown to be safe and efficacious. Because PK was predictable, a dosing regimen based on age and weight is proposed. IVA was generally safe and well tolerated, and led to improvements in CFTR function, markers of pancreatic function and intestinal inflammation, and growth parameters, supporting use in infants as young as 1 month of age.
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Affiliation(s)
- Paul McNally
- RCSI University of Medicine and Health Sciences and Children's Health Ireland, Dublin, Ireland
| | - Alvin Singh
- Children's Mercy Kansas City, Kansas City, MO, USA
| | - Susanna A McColley
- Ann & Robert H. Lurie Children's Hospital of Chicago and Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jane C Davies
- NHLI, Imperial College London & Royal Brompton Hospital, Part of Guy's & St Thomas' Trust, London, UK
| | - Mark Higgins
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | - Meng Liu
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | - Jennifer Lu
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | | | - Judy L Shih
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | - Margaret Rosenfeld
- Center for Clinical and Translational Research, Seattle Children's Research Institute, and Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA.
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Angyal D, Kleinfelder K, Ciciriello F, Groeneweg TA, De Marchi G, de Pretis N, Bernardoni L, Rodella L, Tomba F, De Angelis P, Surace C, Pintani E, Alghisi F, de Jonge HR, Melotti P, Sorio C, Lucidi V, Bijvelds MJC, Frulloni L. CFTR function is impaired in a subset of patients with pancreatitis carrying rare CFTR variants. Pancreatology 2024; 24:394-403. [PMID: 38493004 DOI: 10.1016/j.pan.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Many affected by pancreatitis harbor rare variants of the cystic fibrosis (CF) gene, CFTR, which encodes an epithelial chloride/bicarbonate channel. We investigated CFTR function and the effect of CFTR modulator drugs in pancreatitis patients carrying CFTR variants. METHODS Next-generation sequencing was performed to identify CFTR variants. Sweat tests and nasal potential difference (NPD) assays were performed to assess CFTR function in vivo. Intestinal current measurement (ICM) was performed on rectal biopsies. Patient-derived intestinal epithelial monolayers were used to evaluate chloride and bicarbonate transport and the effects of a CFTR modulator combination: elexacaftor, tezacaftor and ivacaftor (ETI). RESULTS Of 32 pancreatitis patients carrying CFTR variants, three had CF-causing mutations on both alleles and yielded CF-typical sweat test, NPD and ICM results. Fourteen subjects showed a more modest elevation in sweat chloride levels, including three that were provisionally diagnosed with CF. ICM indicated impaired CFTR function in nine out of 17 non-CF subjects tested. This group of nine included five carrying a wild type CFTR allele. In epithelial monolayers, a reduction in CFTR-dependent chloride transport was found in six out of 14 subjects tested, whereas bicarbonate secretion was reduced in only one individual. In epithelial monolayers of four of these six subjects, ETI improved CFTR function. CONCLUSIONS CFTR function is impaired in a subset of pancreatitis patients carrying CFTR variants. Mutations outside the CFTR locus may contribute to the anion transport defect. Bioassays on patient-derived intestinal tissue and organoids can be used to detect such defects and to assess the effect of CFTR modulators.
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Affiliation(s)
- Dora Angyal
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, the Netherlands
| | - Karina Kleinfelder
- Department of Medicine, University of Verona, Division of General Pathology, Verona, Italy
| | - Fabiana Ciciriello
- Cystic Fibrosis Unit, Bambino Gesù Children's Hospital, IRCCS, Piazza di Sant'Onofrio 4, 00165, Rome, Italy
| | - Tessa A Groeneweg
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, the Netherlands
| | - Giulia De Marchi
- Gastroenterology Unit, Department of Medicine, Borgo Roma Hospital, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Nicolò de Pretis
- Gastroenterology Unit, Department of Medicine, Borgo Roma Hospital, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Laura Bernardoni
- Gastroenterology Unit, Department of Medicine, Borgo Roma Hospital, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Luca Rodella
- Endoscopy Surgery Unit, Azienda Ospedaliera Universitaria Integrata Verona, 37126, Verona, Italy
| | - Francesco Tomba
- Endoscopy Surgery Unit, Azienda Ospedaliera Universitaria Integrata Verona, 37126, Verona, Italy
| | - Paola De Angelis
- Digestive Endoscopy and Surgery Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Cecilia Surace
- Laboratory of Medical Genetics, Bambino Gesù Children's Hospital, IRCCS, Viale di San Paolo 15, 00146, Rome, Italy
| | - Emily Pintani
- Cystic Fibrosis Centre, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Federico Alghisi
- Cystic Fibrosis Unit, Bambino Gesù Children's Hospital, IRCCS, Piazza di Sant'Onofrio 4, 00165, Rome, Italy
| | - Hugo R de Jonge
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, the Netherlands
| | - Paola Melotti
- Cystic Fibrosis Centre, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Claudio Sorio
- Department of Medicine, University of Verona, Division of General Pathology, Verona, Italy
| | - Vincenzina Lucidi
- Cystic Fibrosis Unit, Bambino Gesù Children's Hospital, IRCCS, Piazza di Sant'Onofrio 4, 00165, Rome, Italy
| | - Marcel J C Bijvelds
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, the Netherlands.
| | - Luca Frulloni
- Gastroenterology Unit, Department of Medicine, Borgo Roma Hospital, Piazzale L.A. Scuro 10, 37134, Verona, Italy
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Mainz JG, Lester K, Elnazir B, Williamson M, McKone E, Cox D, Linnane B, Zagoya C, Duckstein F, Barucha A, Davies JC, McNally P. Reduction in abdominal symptoms (CFAbd-Score), faecal M2-pyruvate-kinase and Calprotectin over one year of treatment with Elexacaftor-Tezacaftor-Ivacaftor in people with CF aged ≥12 years - The RECOVER study. J Cyst Fibros 2024; 23:474-480. [PMID: 37806792 DOI: 10.1016/j.jcf.2023.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/23/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND RECOVER is a multicentre post-approval study of Elexacaftor/Tezacaftor/Ivacaftor (ETI) in pwCF in Ireland and the UK. The CFAbd-Score is the first validated CF-specific patient reported outcome measure (PROM) focusing on gastrointestinal symptoms; it comprises 28 items in 5 domains. In a preliminary study, we previously reported reductions in abdominal symptoms (AS) in pwCF after 26 weeks of ETI-therapy using the CFAbd-Score. AIM to assess changes in AS in a second, large cohort and explore novel GI-biomarkers of gut inflammation and cell-proliferation in pwCF over one year of ETI-therapy. METHODS Participants were recruited as part of the RECOVER study at 8 sites (Ireland&UK). The CFAbd-Score was administered prior to ETI-initiation, and subsequently at 1,2,6 and 12 months on treatment. Faecal M2-pyruvate kinase (M2-PK) and calprotectin (FC) were quantified in samples collected at baseline, 1 and 6 months. RESULTS 108 CFAbd-Scores and 73 stool samples were collected at baseline. After 12 months of ETI-therapy, total CFAbd-Scores had significantly declined (15.0±1.4→9.8±1.2pts/p<0.001), and so had all its five domains of "pain" (16.9±2.0pts→9.9±1.8pts/p<0.01), "GERD" (14.4±1.8→9.9±1.6/p<0.05), "disorders of bowel movements" (19.2±1.4→14.1±1.5/p<0.01), "appetite" (7.0±1.1→4.6±1.2/p<0.01) and "impaired-QoL" (13.3±1.9→7.5±1.5/p<0.001). Levels of M2-PK and FC significantly decreased during ETI-therapy. DISCUSSION In-depth analysis of AS with the CFAbd-Score reveals a statistically significant, clinically relevant and sustained improvement with ETI. We attribute this to high sensitivity of the implemented CF-specific PROM, developed and validated following FDA-guidelines. Furthermore, for the first time during ETI-therapy a significant decline in faecal M2-PK, a marker of inflammation and cell-proliferation, was found, in parallel to FC.
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Affiliation(s)
- Jochen G Mainz
- Brandenburg Medical School (MHB) University. Klinikum Westbrandenburg, Brandenburg an der Havel, Germany.
| | - Karen Lester
- RCSI University of Medicine and Health Sciences, Dublin, Ireland
| | | | | | - Ed McKone
- St Vincent's University Hospital, Dublin, Ireland
| | - Des Cox
- Children's Health Ireland, Dublin, Ireland
| | - Barry Linnane
- University of Limerick School of Medicine, Limerick, Ireland
| | - Carlos Zagoya
- Brandenburg Medical School (MHB) University. Klinikum Westbrandenburg, Brandenburg an der Havel, Germany
| | - Franziska Duckstein
- Brandenburg Medical School (MHB) University. Klinikum Westbrandenburg, Brandenburg an der Havel, Germany
| | - Anton Barucha
- Brandenburg Medical School (MHB) University. Klinikum Westbrandenburg, Brandenburg an der Havel, Germany; Department of Gastroenterology, Brandenburg Medical School (MHB) University, Brandenburg an der Havel, Germany
| | - Jane C Davies
- National Heart & Lung Institute, Imperial College London, UK; Royal Brompton Hospital, Guy's & St Thomas' NHS Trust, London, UK
| | - Paul McNally
- RCSI University of Medicine and Health Sciences, Dublin, Ireland; Children's Health Ireland, Dublin, Ireland
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8
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Stastna N, Kunovsky L, Svoboda M, Pokojova E, Homola L, Mala M, Gracova Z, Jerabkova B, Skrickova J, Trna J. Improved Nutritional Outcomes and Gastrointestinal Symptoms in Adult Cystic Fibrosis Patients Treated with Elexacaftor/Tezacaftor/Ivacaftor. Dig Dis 2024; 42:361-368. [PMID: 38569478 DOI: 10.1159/000538606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Cystic fibrosis transmembrane conductance regulator modulator therapy improves nutritional status and quality of life. Clinical trials have shown pancreatic insufficiency conversion, mostly in pediatric patients treated with ivacaftor. Studies with elexacaftor/tezacaftor/ivacaftor (ETI) in older patients have not suggested restoration of exocrine pancreas function, but quality data in adults are lacking. Our aim was to show the effect of ETI in adults with cystic fibrosis (CF) on nutritional status and digestive function. We hypothesized improvement of nutritional parameters and gastrointestinal symptoms, reduction of pancreatic enzyme replacement therapy, but uncertain improvement in exocrine pancreatic function. METHODS We prospectively enrolled adults with CF treated with ETI from August 2021 to June 2022. We measured anthropometric parameters, laboratory nutritional markers, change of fecal elastase, pancreatic enzymes replacement therapy needs, and gastrointestinal symptoms. RESULTS In the cohort of 29 patients (mean age 29.1 years), 82.8% suffered exocrine pancreatic insufficiency. After ETI, mean BMI increased by 1.20 kg/m2 (p < 0.001), mean body weight by 3.51 kg (p < 0.001), albumin by 2.81 g/L, and prealbumin by 0.06 (both p < 0.001). Only 1 patient, initially pancreatic insufficient (4.5%, p < 0.001), developed pancreatic sufficiency, indicated by increased fecal elastase from 45 μg/g to 442.1 μg/g. Mean change in lipase substitution decreased by 1,969 units/kg/day (p < 0.001) and stools frequency by 1.18 per day (p < 0.001). CONCLUSION Our data suggest increased nutritional parameters, lower pancreatic substitution requirements, and improved defecation in adult CF patients on ETI. Improvement in exocrine pancreatic function might be mutation-specific and needs further study.
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Affiliation(s)
- Nela Stastna
- Department of Pneumology, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czechia
- Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Lumir Kunovsky
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Surgery, University Hospital Brno, Brno, Czechia
- Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czechia
- 2nd Department of Internal Medicine - Gastroenterology and Geriatrics, University Hospital Olomouc, Olomouc, Czechia
- Department of Gastroenterology and Digestive Endoscopy, Masaryk Memorial Cancer Institute, Brno, Czechia
| | - Michal Svoboda
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Institute of Biostatistics and Analyses s.r.o., Brno, Czechia
| | - Eva Pokojova
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Respiratory Diseases, University Hospital Brno, Brno, Czechia
| | - Lukas Homola
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Children's Infectious Diseases, University Hospital Brno, Brno, Czechia
| | - Miriam Mala
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Children's Infectious Diseases, University Hospital Brno, Brno, Czechia
| | - Zaneta Gracova
- Department of Children's Infectious Diseases, University Hospital Brno, Brno, Czechia
| | - Barbora Jerabkova
- Department of Children's Infectious Diseases, University Hospital Brno, Brno, Czechia
| | - Jana Skrickova
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Respiratory Diseases, University Hospital Brno, Brno, Czechia
| | - Jan Trna
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Gastroenterology and Digestive Endoscopy, Masaryk Memorial Cancer Institute, Brno, Czechia
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9
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Anton-Păduraru DT, Azoicăi AN, Trofin F, Mîndru DE, Murgu AM, Bocec AS, Iliescu Halițchi CO, Ciongradi CI, Sȃrbu I, Iliescu ML. Diagnosing Cystic Fibrosis in the 21st Century-A Complex and Challenging Task. Diagnostics (Basel) 2024; 14:763. [PMID: 38611676 PMCID: PMC11012009 DOI: 10.3390/diagnostics14070763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Cystic fibrosis (CF) is a chronic and potentially life-threatening condition, wherein timely diagnosis assumes paramount significance for the prompt initiation of therapeutic interventions, thereby ameliorating pulmonary function, addressing nutritional deficits, averting complications, mitigating morbidity, and ultimately enhancing the quality of life and extending longevity. This review aims to amalgamate existing knowledge to provide a comprehensive appraisal of contemporary diagnostic modalities pertinent to CF in the 21st century. Deliberations encompass discrete delineations of each diagnostic modality and the elucidation of potential diagnostic quandaries encountered in select instances, as well as the delineation of genotype-phenotype correlations germane to genetic counseling endeavors. The synthesis underscores that, notwithstanding the availability and strides in diagnostic methodologies, including genetic assays, the sweat test (ST) retains its position as the preeminent diagnostic standard for CF, serving as a robust surrogate for CFTR functionality. Prospective clinical investigations in the realm of CF should be orchestrated with the objective of discerning novel diagnostic modalities endowed with heightened specificity and sensitivity.
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Affiliation(s)
- Dana-Teodora Anton-Păduraru
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (A.N.A.); (D.E.M.); (A.M.M.); (A.S.B.); (C.O.I.H.)
- “Sf.Maria” Children Emergency Hospital, 700309 Iaṣi, Romania; (C.I.C.); (I.S.)
| | - Alice Nicoleta Azoicăi
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (A.N.A.); (D.E.M.); (A.M.M.); (A.S.B.); (C.O.I.H.)
- “Sf.Maria” Children Emergency Hospital, 700309 Iaṣi, Romania; (C.I.C.); (I.S.)
| | - Felicia Trofin
- Department of Preventive Medicine and Interdisciplinarity—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania
| | - Dana Elena Mîndru
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (A.N.A.); (D.E.M.); (A.M.M.); (A.S.B.); (C.O.I.H.)
- “Sf.Maria” Children Emergency Hospital, 700309 Iaṣi, Romania; (C.I.C.); (I.S.)
| | - Alina Mariela Murgu
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (A.N.A.); (D.E.M.); (A.M.M.); (A.S.B.); (C.O.I.H.)
- “Sf.Maria” Children Emergency Hospital, 700309 Iaṣi, Romania; (C.I.C.); (I.S.)
| | - Ana Simona Bocec
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (A.N.A.); (D.E.M.); (A.M.M.); (A.S.B.); (C.O.I.H.)
| | - Codruța Olimpiada Iliescu Halițchi
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (A.N.A.); (D.E.M.); (A.M.M.); (A.S.B.); (C.O.I.H.)
| | - Carmen Iulia Ciongradi
- “Sf.Maria” Children Emergency Hospital, 700309 Iaṣi, Romania; (C.I.C.); (I.S.)
- 2nd Department of Surgery, Pediatric Surgery and Orthopedics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania
| | - Ioan Sȃrbu
- “Sf.Maria” Children Emergency Hospital, 700309 Iaṣi, Romania; (C.I.C.); (I.S.)
- 2nd Department of Surgery, Pediatric Surgery and Orthopedics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania
| | - Maria Liliana Iliescu
- Department of Preventive Medicine and Interdisciplinarity—Public Health and Health Management, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania;
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10
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McDonald CM, Reid EK, Pohl JF, Yuzyuk TK, Padula LM, Vavrina K, Altman K. Cystic fibrosis and fat malabsorption: Pathophysiology of the cystic fibrosis gastrointestinal tract and the impact of highly effective CFTR modulator therapy. Nutr Clin Pract 2024; 39 Suppl 1:S57-S77. [PMID: 38429959 DOI: 10.1002/ncp.11122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/28/2023] [Accepted: 12/28/2023] [Indexed: 03/03/2024] Open
Abstract
Cystic fibrosis (CF) is a progressive, genetic, multi-organ disease affecting the respiratory, digestive, endocrine, and reproductive systems. CF can affect any aspect of the gastrointestinal (GI) tract, including the esophagus, stomach, small intestine, colon, pancreas, liver, and gall bladder. GI pathophysiology associated with CF results from CF membrane conductance regulator (CFTR) dysfunction. The majority of people with CF (pwCF) experience exocrine pancreatic insufficiency resulting in malabsorption of nutrients and malnutrition. Additionally, other factors can cause or worsen fat malabsorption, including the potential for short gut syndrome with a history of meconium ileus, hepatobiliary diseases, and disrupted intraluminal factors, such as inadequate bile salts, abnormal pH, intestinal microbiome changes, and small intestinal bacterial overgrowth. Signs and symptoms associated with fat malabsorption, such as abdominal pain, bloating, malodorous flatus, gastroesophageal reflux, nausea, anorexia, steatorrhea, constipation, and distal intestinal obstruction syndrome, are seen in pwCF despite the use of pancreatic enzyme replacement therapy. Given the association of poor nutrition status with lung function decline and increased mortality, aggressive nutrition support is essential in CF care to optimize growth in children and to achieve and maintain a healthy body mass index in adults. The introduction of highly effective CFTR modulator therapy and other advances in CF care have profoundly changed the course of CF management. However, GI symptoms in some pwCF may persist. The use of current knowledge of the pathophysiology of the CF GI tract as well as appropriate, individualized management of GI symptoms continue to be integral components of care for pwCF.
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Affiliation(s)
| | - Elizabeth K Reid
- Cystic Fibrosis Center, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - John F Pohl
- Pediatric Gastroenterology, Primary Children's Hospital, Salt Lake City, Utah, USA
| | - Tatiana K Yuzyuk
- Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
- ARUP Institute for Clinical & Experimental Pathology, Salt Lake City, Utah, USA
| | - Laura M Padula
- Pediatric Specialty, University Health, San Antonio, Texas, USA
| | - Kay Vavrina
- Pediatric Specialty, University Health, San Antonio, Texas, USA
| | - Kimberly Altman
- Gunnar Esiason Adult Cystic Fibrosis and Lung Center, Columbia University Medical Center, New York, New York, USA
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11
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Corrao F, Kelly-Aubert M, Sermet-Gaudelus I, Semeraro M. Unmet challenges in cystic fibrosis treatment with modulators. Expert Rev Respir Med 2024; 18:145-157. [PMID: 38755109 DOI: 10.1080/17476348.2024.2357210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 05/15/2024] [Indexed: 05/18/2024]
Abstract
INTRODUCTION 'Highly effective' modulator therapies (HEMTs) have radically changed the Cystic Fibrosis (CF) therapeutic landscape. AREAS COVERED A comprehensive search strategy was undertaken to assess impact of HEMT in life of pwCF, treatment challenges in specific populations such as very young children, and current knowledge gaps. EXPERT OPINION HEMTs are prescribed for pwCF with definite genotypes. The heterogeneity of variants complicates treatment possibilities and around 10% of pwCF worldwide remains ineligible. Genotype-specific treatments are prompting theratyping and personalized medicine strategies. Improvement in lung function and quality of life increase survival rates, shifting CF from a pediatric to an adult disease. This implies new studies addressing long-term efficacy, side effects, emergence of adult co-morbidities and possible drug-drug interactions. More sensitive and predictive biomarkers for both efficacy and toxicity are warranted. As HEMTs cross the placenta and are found in breast milk, studies addressing the potential consequences of treatment during pregnancy and breastfeeding are urgently needed. Finally, although the treatment and expected outcomes of CF have improved dramatically in high- and middle-income countries, lack of access in low-income countries to these life-changing medicines highlights inequity of care worldwide.
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Affiliation(s)
- Federica Corrao
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo, Italy
- INSERM, Institut Necker Enfants Malades, Paris, France
| | | | - Isabelle Sermet-Gaudelus
- INSERM, Institut Necker Enfants Malades, Paris, France
- Centre de Référence Maladies Rares Mucoviscidose et maladies apparentées. Site constitutif, Université de Paris, Paris, France
- European Reference Lung Center, Frankfurt, Germany
- Université Paris Cité, Paris, France
| | - Michaela Semeraro
- Université Paris Cité, Paris, France
- Centre Investigation Clinique, Hôpital Necker Enfants Malades, Paris, France
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12
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Cao L, Wu Y, Gong Y, Zhou Q. Small molecule modulators of cystic fibrosis transmembrane conductance regulator (CFTR): Structure, classification, and mechanisms. Eur J Med Chem 2024; 265:116120. [PMID: 38194776 DOI: 10.1016/j.ejmech.2023.116120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/28/2023] [Accepted: 12/31/2023] [Indexed: 01/11/2024]
Abstract
The advent of small molecule modulators targeting the cystic fibrosis transmembrane conductance regulator (CFTR) has revolutionized the treatment of persons with cystic fibrosis (CF) (pwCF). Presently, these small molecule CFTR modulators have gained approval for usage in approximately 90 % of adult pwCF. Ongoing drug development endeavors are focused on optimizing the therapeutic benefits while mitigating potential adverse effects associated with this treatment approach. Based on their mode of interaction with CFTR, these drugs can be classified into two distinct categories: specific CFTR modulators and non-specific CFTR modulators. Specific CFTR modulators encompass potentiators and correctors, whereas non-specific CFTR modulators encompass activators, proteostasis modulators, stabilizers, reader-through agents, and amplifiers. Currently, four small molecule modulators, all classified as potentiators and correctors, have obtained marketing approval. Furthermore, numerous novel small molecule modulators, exhibiting diverse mechanisms of action, are currently undergoing development. This review aims to explore the classification, mechanisms of action, molecular structures, developmental processes, and interrelationships among small molecule CFTR modulators.
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Affiliation(s)
- Luyang Cao
- China Pharmaceutical University, Nanjing, 210009, PR China
| | - Yong Wu
- Jiangsu Vcare PharmaTech Co., Ltd., Huakang Road 136, Biotech and Pharmaceutical Valley, Jiangbei New Area, Nanjing, 211800, PR China
| | - Yanchun Gong
- Jiangsu Vcare PharmaTech Co., Ltd., Huakang Road 136, Biotech and Pharmaceutical Valley, Jiangbei New Area, Nanjing, 211800, PR China.
| | - Qingfa Zhou
- China Pharmaceutical University, Nanjing, 210009, PR China.
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13
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Wilschanski M, Munck A, Carrion E, Cipolli M, Collins S, Colombo C, Declercq D, Hatziagorou E, Hulst J, Kalnins D, Katsagoni CN, Mainz JG, Ribes-Koninckx C, Smith C, Smith T, Van Biervliet S, Chourdakis M. ESPEN-ESPGHAN-ECFS guideline on nutrition care for cystic fibrosis. Clin Nutr 2024; 43:413-445. [PMID: 38169175 DOI: 10.1016/j.clnu.2023.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Nutritional status is paramount in Cystic Fibrosis (CF) and is directly correlated with morbidity and mortality. The first ESPEN-ESPGHAN-ECFS guidelines on nutrition care for infants, children, and adults with CF were published in 2016. An update to these guidelines is presented. METHODS The study was developed by an international multidisciplinary working group in accordance with officially accepted standards. Literature since 2016 was reviewed, PICO questions were discussed and the GRADE system was utilized. Statements were discussed and submitted for on-line voting by the Working Group and by all ESPEN members. RESULTS The Working Group updated the nutritional guidelines including assessment and management at all ages. Supplementation of vitamins and pancreatic enzymes remains largely the same. There are expanded chapters on pregnancy, CF-related liver disease, and CF-related diabetes, bone disease, nutritional and mineral supplements, and probiotics. There are new chapters on nutrition with highly effective modulator therapies and nutrition after organ transplantation.
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Affiliation(s)
- Michael Wilschanski
- Pediatric Gastroenterology, Hadassah Hebrew University Medical Center, Jerusalem, Israel.
| | - Anne Munck
- Cystic Fibrosis Centre, Hopital Necker-Enfants Malades, AP-HP, Paris, France
| | - Estefania Carrion
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Marco Cipolli
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Sarah Collins
- CF Therapies Team, Royal Brompton & Harefield Hospital, London, UK
| | - Carla Colombo
- University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Dimitri Declercq
- Cystic Fibrosis Reference Centre, Ghent University Hospital and Department of Internal Medicine and Paediatrics, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Elpis Hatziagorou
- Cystic Fibrosis Unit, 3rd Pediatric Dept, Hippokration Hospital, Aristotle University of Thessaloniki, Greece
| | - Jessie Hulst
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada; Department of Pediatrics and Department of Nutritional Sciences, The University of Toronto, Toronto, Canada
| | - Daina Kalnins
- Department of Clinical Dietetics, The Hospital for Sick Children, Toronto, Canada
| | - Christina N Katsagoni
- Department of Clinical Nutrition, Agia Sofia Children's Hospital, Athens, Greece; EFAD, European Specialist Dietetic Networks (ESDN) for Gastroenterology, Denmark
| | - Jochen G Mainz
- Brandenburg Medical School, University Hospital. Klinikum Westbrandenburg, Brandenburg an der Havel, Germany
| | - Carmen Ribes-Koninckx
- Pediatric Gastroenterology and Paediatric Cystic Fibrosis Unit. La Fe Hospital & La Fe Research Institute, Valencia, Spain
| | - Chris Smith
- Department of Dietetics, Royal Alexandra Children's Hospital, Brighton, UK
| | - Thomas Smith
- Independent Patient Consultant Working at Above-disease Level, UK
| | | | - Michael Chourdakis
- School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Greece
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14
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Angyal D, Groeneweg TA, Leung A, Desain M, Dulla K, de Jonge HR, Bijvelds MJC. Pro-inflammatory cytokines stimulate CFTR-dependent anion secretion in pancreatic ductal epithelium. Cell Mol Biol Lett 2024; 29:18. [PMID: 38262945 PMCID: PMC10807165 DOI: 10.1186/s11658-024-00537-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/17/2024] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Loss of CFTR-dependent anion and fluid secretion in the ducts of the exocrine pancreas is thought to contribute to the development of pancreatitis, but little is known about the impact of inflammation on ductal CFTR function. Here we used adult stem cell-derived cell cultures (organoids) obtained from porcine pancreas to evaluate the effects of pro-inflammatory cytokines on CFTR function. METHODS Organoids were cultured from porcine pancreas and used to prepare ductal epithelial monolayers. Monolayers were characterized by immunocytochemistry. Epithelial bicarbonate and chloride secretion, and the effect of IL-1β, IL-6, IFN-γ, and TNF-α on CFTR function was assessed by electrophysiology. RESULTS Immunolocalization of ductal markers, including CFTR, keratin 7, and zonula occludens 1, demonstrated that organoid-derived cells formed a highly polarized epithelium. Stimulation by secretin or VIP triggered CFTR-dependent anion secretion across epithelial monolayers, whereas purinergic receptor stimulation by UTP, elicited CFTR-independent anion secretion. Most of the anion secretory response was attributable to bicarbonate transport. The combination of IL-1β, IL-6, IFN-γ, and TNF-α markedly enhanced CFTR expression and anion secretion across ductal epithelial monolayers, whereas these cytokines had little effect when tested separately. Although TNF-α triggered apoptotic signaling, epithelial barrier function was not significantly affected by cytokine exposure. CONCLUSIONS Pro-inflammatory cytokines enhance CFTR-dependent anion secretion across pancreatic ductal epithelium. We propose that up-regulation of CFTR in the early stages of the inflammatory response, may serve to promote the removal of pathogenic stimuli from the ductal tree, and limit tissue injury.
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Affiliation(s)
- Dora Angyal
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, PO Box 2040, 3000CA, Rotterdam, The Netherlands
| | - Tessa A Groeneweg
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, PO Box 2040, 3000CA, Rotterdam, The Netherlands
| | - Anny Leung
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, PO Box 2040, 3000CA, Rotterdam, The Netherlands
| | - Max Desain
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, PO Box 2040, 3000CA, Rotterdam, The Netherlands
| | - Kalyan Dulla
- Boehringer Ingelheim Pharma GmbH & Co. KG, Binger Strasse 173, 55216, Ingelheim Am Rhein, Germany
| | - Hugo R de Jonge
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, PO Box 2040, 3000CA, Rotterdam, The Netherlands
| | - Marcel J C Bijvelds
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, PO Box 2040, 3000CA, Rotterdam, The Netherlands.
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15
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Anton-Păduraru DT, Murgu AM, Bozomitu LI, Mîndru DE, Iliescu Halițchi CO, Trofin F, Ciongradi CI, Sârbu I, Eṣanu IM, Azoicăi AN. Diagnosis and Management of Gastrointestinal Manifestations in Children with Cystic Fibrosis. Diagnostics (Basel) 2024; 14:228. [PMID: 38275475 PMCID: PMC10814426 DOI: 10.3390/diagnostics14020228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/16/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024] Open
Abstract
Cystic fibrosis (CF) is primarily known for its pulmonary consequences, which are extensively explored in the existing literature. However, it is noteworthy that individuals with CF commonly display gastrointestinal (G-I) manifestations due to the substantial presence of the cystic fibrosis transmembrane conductance regulator (CFTR) protein in the intestinal tract. Recognized as pivotal nonpulmonary aspects of CF, G-I manifestations exhibit a diverse spectrum. Identifying and effectively managing these manifestations are crucial for sustaining health and influencing the overall quality of life for CF patients. This review aims to synthesize existing knowledge, providing a comprehensive overview of the G-I manifestations associated with CF. Each specific G-I manifestation, along with the diagnostic methodologies and therapeutic approaches, is delineated, encompassing the impact of innovative treatments targeting the fundamental effects of CF on the G-I tract. The findings underscore the imperative for prompt diagnosis and meticulous management of G-I manifestations, necessitating a multidisciplinary team approach for optimal care and enhancement of the quality of life for affected individuals. In conclusion, the authors emphasize the urgency for further clinical studies to establish a more robust evidence base for managing G-I symptoms within the context of this chronic disease. Such endeavors are deemed essential for advancing understanding and refining the clinical care of CF patients with G-I manifestations.
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Affiliation(s)
- Dana-Teodora Anton-Păduraru
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (L.I.B.); (D.E.M.); (C.O.I.H.); (A.N.A.)
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
| | - Alina Mariela Murgu
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (L.I.B.); (D.E.M.); (C.O.I.H.); (A.N.A.)
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
| | - Laura Iulia Bozomitu
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (L.I.B.); (D.E.M.); (C.O.I.H.); (A.N.A.)
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
| | - Dana Elena Mîndru
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (L.I.B.); (D.E.M.); (C.O.I.H.); (A.N.A.)
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
| | - Codruța Olimpiada Iliescu Halițchi
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (L.I.B.); (D.E.M.); (C.O.I.H.); (A.N.A.)
| | - Felicia Trofin
- Department of Preventive Medicine and Interdisciplinarity–Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania;
| | - Carmen Iulia Ciongradi
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
- 2nd Department of Surgery, Pediatric Surgery and Orthopedics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania
| | - Ioan Sârbu
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
- 2nd Department of Surgery, Pediatric Surgery and Orthopedics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania
| | - Irina Mihaela Eṣanu
- Medical Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania;
| | - Alice Nicoleta Azoicăi
- Department of Mother and Child Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaṣi, Romania; (D.-T.A.-P.); (L.I.B.); (D.E.M.); (C.O.I.H.); (A.N.A.)
- “Sf. Maria” Children Emergency Hospital, 700309 Iasi, Romania; (C.I.C.); (I.S.)
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16
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Southern KW, Addy C, Bell SC, Bevan A, Borawska U, Brown C, Burgel PR, Button B, Castellani C, Chansard A, Chilvers MA, Davies G, Davies JC, De Boeck K, Declercq D, Doumit M, Drevinek P, Fajac I, Gartner S, Georgiopoulos AM, Gursli S, Gramegna A, Hansen CM, Hug MJ, Lammertyn E, Landau EEC, Langley R, Mayer-Hamblett N, Middleton A, Middleton PG, Mielus M, Morrison L, Munck A, Plant B, Ploeger M, Bertrand DP, Pressler T, Quon BS, Radtke T, Saynor ZL, Shufer I, Smyth AR, Smith C, van Koningsbruggen-Rietschel S. Standards for the care of people with cystic fibrosis; establishing and maintaining health. J Cyst Fibros 2024; 23:12-28. [PMID: 38129255 DOI: 10.1016/j.jcf.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023]
Abstract
This is the second in a series of four papers updating the European Cystic Fibrosis Society (ECFS) standards for the care of people with CF. This paper focuses on establishing and maintaining health. The guidance is produced using an evidence-based framework and with wide stakeholder engagement, including people from the CF community. Authors provided a narrative description of their topic and statements, which were more directive. These statements were reviewed by a Delphi exercise, achieving good levels of agreement from a wide group for all statements. This guidance reinforces the importance of a multi-disciplinary CF team, but also describes developing models of care including virtual consultations. The framework for health is reinforced, including the need for a physically active lifestyle and the strict avoidance of all recreational inhalations, including e-cigarettes. Progress with cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapy is reviewed, including emerging adverse events and advice for dose reduction and interruption. This paper contains guidance that is pertinent to all people with CF regardless of age and eligibility for and access to modulator therapy.
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Affiliation(s)
- Kevin W Southern
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK.
| | - Charlotte Addy
- All Wales Adult Cystic Fibrosis Centre, University Hospital Llandough, Cardiff and Vale University Health Board, Cardiff, UK
| | - Scott C Bell
- Department of Thoracic Medicine and Faculty of Medicine, The University of Queensland, The Prince Charles Hospital, Brisbane, Australia
| | - Amanda Bevan
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Urzula Borawska
- Institute of Mother and Child in Warsaw, Cystic Fibrosis Department and Dziekanow Lesny Hospital, Cystic Fibrosis Center, Dziekanow Lesny, Poland
| | - Catherine Brown
- West Midlands Adult CF Centre, Heartlands Hospital Birmingham, UK
| | - Pierre-Régis Burgel
- Respiratory Medicine and Cystic Fibrosis National Reference Center, Cochin Hospital, Assistance Publique Hôpitaux de Paris (AP-HP) and Université Paris-Cité, Institut Cochin, Inserm U1016, Paris, France
| | - Brenda Button
- Department of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia 3181, and Department of Respiratory Medicine, Alfred Health, Melbourne 3004, Australia
| | - Carlo Castellani
- IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genova, Italy
| | - Audrey Chansard
- Epigenetics and Cell Fate Centre, UMR7216 CNRS, Université Paris Cité, Paris, France, and Cystic Fibrosis Europe, Brussels, Belgium
| | - Mark A Chilvers
- Divison of Pediatric Respiratroy Medicine, BC Childrens Hospital, Vancouver, Canada
| | - Gwyneth Davies
- Population, Policy and Practice Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Jane C Davies
- National Heart & Lung Institute, Imperial College London; Imperial Biomedical Research Centre; Royal Brompton Hospital, Guy's & St Thomas' Trust, London, UK
| | | | - Dimitri Declercq
- Cystic Fibrosis Reference Center, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium; Department of Pediatrics, Center for children and adolescents with diabetes, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine and Paediatrics, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | | | - Pavel Drevinek
- Department of Medical Microbiology, Second Faculty of Medicine, Motol University Hospital, Charles University, Prague, Czech Republic
| | - Isabelle Fajac
- Assistance Publique - Hôpitaux de Paris, Université Paris Cité, Paris, France
| | | | - Anna M Georgiopoulos
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Sandra Gursli
- National Resource Centre for Cystic Fibrosis, Oslo University Hospital, Oslo, Norway
| | - Andrea Gramegna
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Carina Me Hansen
- Department of Clinical Pharmacy & Pharmacology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, the Netherlands
| | - Martin J Hug
- Medical Center - University of Freiburg, Pharmacy, Hugstetter St. 55, Freiburg, D-79106, Germany
| | - Elise Lammertyn
- Cystic Fibrosis Europe, Brussels, Belgium and the Belgian CF Association, Brussels, Belgium
| | - Edwina Eddie C Landau
- The Graub CF Center, Pulmonary Institute, Schneider Children's Medical Center, Petah Tikva, Israel
| | - Ross Langley
- Department of Paediatric Respiratory & Sleep Medicine, Royal Hospital for Children, Glasgow, UK
| | - Nicole Mayer-Hamblett
- Seattle Children's Research Institute, Seattle, WA and Department of Pediatrics, University of Washington, Seattle, Wa, USA
| | - Anna Middleton
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Peter G Middleton
- Westmead Clinical School, University of Sydney and CITRICA, Dept Respiratory & Sleep Medicine, Westmead Hospital, Westmead, Australia
| | - Monika Mielus
- Cystic Fibrosis Department, Institute of Mother and Child, Warsaw, Poland; Cystic Fibrosis Centre, Pediatric Hospital, Dziekanów Leśny, Poland
| | - Lisa Morrison
- West of Scotland Adult CF Centre, Queen Elizabeth University Hospital, Glasgow, UK
| | - Anne Munck
- Hospital Necker Enfants-Malades, AP-HP, CF centre, Université Paris Descartes, Paris, France
| | - Barry Plant
- Cork Centre for Cystic Fibrosis (3CF), Cork University Hospital, Cork, Ireland
| | | | - Dominique Pougheon Bertrand
- Laboratoire Educations et Promotion de la santé, LEPS, UR 3412, University of Sorbonne Paris Nord, F-93430, Villetaneuse, France
| | | | - Bradley S Quon
- Division of Respiratory Medicine, Department of Medicine. St. Paul's Hospital and the University of British Columbia. Vancouver, British Columbia, Canada
| | - Thomas Radtke
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Zoe L Saynor
- Physical Activity, Health and Rehabilitation Thematic Research Group, School of Sport, Health and Exercise Science, Faculty of Science and Health, University of Portsmouth, UK and Wessex Cystic Fibrosis Unit, University Hospitals Southampton NHS Foundation Trust, UK
| | - Ilan Shufer
- CF Patient, Head of Access, Off label and Trials, Computer Science Architecture, Research and Innovation, Cystic Fibrosis Foundation of Israel, Israel
| | - Alan R Smyth
- School of Medicine, Dentistry and Biomedical Sciences, Queens University Belfast, Belfast and NIHR Nottingham Biomedical Research Centre, Nottingham, UK
| | - Chris Smith
- Department of Nutrition and Dietetics, Royal Alexandra Children's Hospital, Brighton, UK
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17
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Stastna N, Pokojova E. Case report of two adults with F508del/3849+10 kb C > T genotype regaining exocrine pancreatic function following treatment with elexacaftor/tezacaftor/ivacaftor. J Cyst Fibros 2023:S1569-1993(23)01725-3. [PMID: 38101988 DOI: 10.1016/j.jcf.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/26/2023] [Accepted: 12/03/2023] [Indexed: 12/17/2023]
Affiliation(s)
- Nela Stastna
- Department of Respiratory Diseases, University Hospital Brno, Jihlavska 20, Brno 62500, Czech Republic; Faculty of Medicine, Masaryk University, Kamenice 5, Brno 62500, Czech Republic.
| | - Eva Pokojova
- Department of Respiratory Diseases, University Hospital Brno, Jihlavska 20, Brno 62500, Czech Republic; Faculty of Medicine, Masaryk University, Kamenice 5, Brno 62500, Czech Republic
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18
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Bashir A, Antos N, Miller T, Challa SA, Pan AY, Gosa M, Silverman A, Goday PS. A Cross-Sectional Study of Pediatric Feeding Disorder in Children with Cystic Fibrosis. J Pediatr Gastroenterol Nutr 2023; 77:819-823. [PMID: 37771032 DOI: 10.1097/mpg.0000000000003951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
BACKGROUND The exact prevalence of feeding problems in children with cystic fibrosis (CF) is unknown. Pediatric feeding disorder (PFD) encompasses poor oral intake with associated medical, nutrition, psychosocial, or feeding skill dysfunction. We hypothesized that PFD is common in CF and aimed to categorize feeding dysfunction across various domains in children with CF. METHODS An observational cross-sectional study was conducted in children with CF. Data collected included anthropometrics, nutrition data (including need for tube feeding/enteral nutrition [EN] or high-energy beverages, dietary diversity), feeding skills (Pediatric version of the Eating Assessment tool [pEAT]), and psychosocial function (About Your Child's Eating questionnaire [AYCE] in children 2-17 years of age/Behavioral Pediatric Feeding Assessment Scale [BPFAS] in children 12-23 months of age). PFD was defined as poor oral intake with: (a) pEAT score > 5; and/or (b) AYCE or BPFAS score > 2 standard deviation of normative controls; and/or (c) nutrition dysfunction (body mass index/weight-for-length z score < -1 and/or preference of oral high energy beverages or dependence on EN and/or decreased dietary diversity). RESULTS Of 103 children in the study, 62 (60.1%) had PFD, 7 children (6.8%) were malnourished, 10 needed EN (9.7%), and 30 (29.1%) needed oral high-energy beverages. Dietary diversity was decreased in 42 children (41.5%), 1 child had feeding skill dysfunction, and 11 (10.8%) met criteria for psychosocial dysfunction. CONCLUSION Almost 2/3rd of children with CF have PFD and many have poor dietary diversity. A significant percentage of children rely on EN and oral supplements, but psychosocial dysfunction is less prevalent.
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Affiliation(s)
- Anam Bashir
- From the Division of Pediatric Gastroenterology, Hepatology and Nutrition, Medical College of Wisconsin, Milwaukee, WI
| | - Nicholas Antos
- the Division of Pediatric Pulmonology, Medical College of Wisconsin, Milwaukee, WI
| | - Tami Miller
- the Department of Clinical Nutrition, Children's Wisconsin, Milwaukee, WI
| | - Sai Alekha Challa
- the Department of Pediatrics, Division of Quantitative Health Sciences, Medical College of Wisconsin, Milwaukee, WI
| | - Amy Y Pan
- the Department of Pediatrics, Division of Quantitative Health Sciences, Medical College of Wisconsin, Milwaukee, WI
| | - Memorie Gosa
- the Department of Communicative Disorders, University of Alabama, Tuscaloosa, AL
| | - Alan Silverman
- From the Division of Pediatric Gastroenterology, Hepatology and Nutrition, Medical College of Wisconsin, Milwaukee, WI
| | - Praveen S Goday
- the Division of Pediatric Gastroenterology, Hepatology and Nutrition, Nationwide Children's Hospital, Columbus, OH
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19
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Lieu N, Prentice BJ, Field P, Fitzgerald DA. Trials and tribulations of highly effective modulator therapies in cystic fibrosis. Paediatr Respir Rev 2023; 48:10-19. [PMID: 37914566 DOI: 10.1016/j.prrv.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 11/03/2023]
Abstract
Highly effective modulator therapies (HEMTs) have revolutionised the management approach of most patients living with cystic fibrosis (CF) who have access to these therapies. Clinical trials have reported significant improvements across multiorgan systems, with patients surviving longer. However, there are accumulating case reports and observational data describing various adverse events following initiation of HEMTs including drug-to-drug interactions, drug induced liver injury, Stevens-Johnson syndrome, and neurocognitive symptoms including psychosis and depression, which have required discontinuation of therapy. Current clinical trials are assessing efficacy in younger patients with CF, yet long-term studies are also required to better understand the safety profile in the real-world setting across all ages and the impact of HEMT dose alteration or discontinuation.
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Affiliation(s)
- Nathan Lieu
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, New South Wales, Australia, 2145; Discipline of Paediatrics and Child Health, University of Sydney, Sydney, New South Wales, Australia.
| | - Bernadette J Prentice
- Department of Respiratory Medicine, Sydney Children's Hospital, Randwick, Sydney, New South Wales, Australia, 2031; Discipline of Paediatrics and Child Health, UNSW, Sydney, New South Wales, Australia
| | - Penelope Field
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, New South Wales, Australia, 2145; Department of Respiratory Medicine, Sydney Children's Hospital, Randwick, Sydney, New South Wales, Australia, 2031; Discipline of Paediatrics and Child Health, UNSW, Sydney, New South Wales, Australia
| | - Dominic A Fitzgerald
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, New South Wales, Australia, 2145; Discipline of Paediatrics and Child Health, University of Sydney, Sydney, New South Wales, Australia
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20
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Diab Cáceres L, Zamarrón de Lucas E. [Cystic fibrosis: Epidemiology, clinical manifestations, diagnosis and treatment]. Med Clin (Barc) 2023; 161:389-396. [PMID: 37558605 DOI: 10.1016/j.medcli.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 08/11/2023]
Abstract
Cystic fibrosis is a genetic and multisystemic disease. The main comorbidity in adulthood is respiratory involvement, with the presence of bronchiectasis, chronic bronchial infection and airflow obstruction. Until a decade ago, treatments were aimed at favoring secretion drainage, reducing respiratory exacerbations, controlling chronic bronchial infection and slowing functional deterioration, but with the advent of cystic fibrosis transmembrane conductance regulator (CFTR) modulators, the cystic fibrosis paradigm has changed. This novel treatment goes a step further in the management of this disease, it is able to improve the production of defective CFTR protein and increase its expression on the cell surface, thus achieving a better functioning of ion exchange, fluidizing respiratory secretions and reducing airflow obstruction. In addition, there are currently different lines of research aimed at correcting the genetic defect that causes cystic fibrosis.
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Affiliation(s)
- Layla Diab Cáceres
- Unidad de Fibrosis Quística, Servicio de Neumología, Hospital Universitario 12 de Octubre, Madrid, España.
| | - Ester Zamarrón de Lucas
- Unidad de Fibrosis Quística, Servicio de de Neumología, Hospital Universitario La Paz, Madrid
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21
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Yuzyuk T, McDonald CM, Zuromski LM, De Biase I, Johnson L, Williams N, Meihls S, Asfour F. Improvement of lipid and lipoprotein profiles in children and adolescents with cystic fibrosis on CFTR modulator therapy. J Cyst Fibros 2023; 22:1027-1035. [PMID: 37453889 DOI: 10.1016/j.jcf.2023.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Association of a high-fat diet with increased risks of cardiovascular disease (CVD) and type 2 diabetes, has prompted evaluation of lipids in people with CF (pwCF). However, most evidence on dyslipidemia was published before CF transmembrane conductance regulator (CFTR) modulators became a standard of care. The main goal of this study was to investigate the effect of CFTR modulator therapies on lipid and lipoprotein profiles in children and adolescents with CF. METHODS Blood samples were collected from 153 pwCF (10.1 ± 4.7 years of age) and 60 age-matched controls. Most pwCF were pancreatic insufficient on pancreatic enzyme replacement therapy. By the end of the study, 65% of CF participants were on CFTR modulator therapy for >1 month. The results of traditional and advanced lipid testing in pwCF were correlated with clinical and dietary information. RESULTS Total cholesterol and low-density lipoprotein (LDL) cholesterol were significantly lower in pwCF compared to non-CF participants. Those not receiving CFTR modulators also had significantly lower high-density lipoprotein (HDL) cholesterol and HDL particle number than controls. Individuals with CF on modulator therapy had significantly higher concentrations of anti-atherogenic HDL cholesterol and HDL particles along with lower levels of atherogenic large very-low density lipoprotein (VLDL) particles, total and small LDL particles, and triglycerides compared to those without CFTR modulator therapy. CONCLUSION CFTR modulator therapy has a beneficial effect on dyslipidemia in CF. It remains to be seen if these positive changes translate into decreased CVD risk later in life given the increasing life expectancy in CF.
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Affiliation(s)
- Tatiana Yuzyuk
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA; ARUP Institute of Clinical & Experimental Pathology, Salt Lake City, UT, USA.
| | | | - Lauren M Zuromski
- ARUP Institute of Clinical & Experimental Pathology, Salt Lake City, UT, USA
| | - Irene De Biase
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA; ARUP Institute of Clinical & Experimental Pathology, Salt Lake City, UT, USA
| | | | - Nicole Williams
- Cystic Fibrosis Clinic, Primary Children's Hospital, Salt Lake City, UT
| | - Suzanne Meihls
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Fadi Asfour
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA
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22
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Lusman SS. Update on Cystic Fibrosis in Pediatric Patients. Curr Gastroenterol Rep 2023; 25:308-315. [PMID: 37653358 DOI: 10.1007/s11894-023-00896-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE OF REVIEW Cystic fibrosis is an inherited, multisystem disease that affects the gastrointestinal system in numerous ways. This article reviews the nutritional, gastrointestinal, and hepatobiliary manifestations of cystic fibrosis with an emphasis on the effects of CFTR modulator therapy. RECENT FINDINGS The life expectancy of individuals with cystic fibrosis has increased substantially in recent years. CFTR modulator therapy improves pulmonary function and results in weight gain. An individualized approach to nutrition is encouraged. Pancreatic exocrine function may improve with intervention early in life. The use of non-invasive methods to screen for hepatobiliary involvement is recommended. Highly effective CFTR modulators lead to increased survival and improved quality of life for many individuals. Their effects on gastrointestinal symptoms and hepatobiliary disease are not fully understood. Patient-reported outcome measures and biomarkers are important clinical endpoints for studying the effects of modulators.
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Affiliation(s)
- Sarah Shrager Lusman
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Columbia University Irving Medical Center, 622 West 168th Street, PH 17 East - 105L, New York, NY, 10032, USA.
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23
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Wajda KE, Roesch EA, Gifford AH. Chronic daily respiratory care needs in people with cystic fibrosis treated with highly effective cystic fibrosis transmembrane conductance regulator modulators. Curr Opin Pulm Med 2023; 29:580-586. [PMID: 37611027 DOI: 10.1097/mcp.0000000000001006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
PURPOSE OF REVIEW Cystic fibrosis is a genetic disease that increases risk of death from respiratory failure because of impairment in mucociliary clearance. Complex daily care regimens including medications and airway clearance techniques (ACTs) aim to preserve lung function and alleviate symptoms for people with cystic fibrosis (pwCF). The success of highly effective modulator therapy (HEMT) permits evaluation of treatment simplification. In this review, we evaluate adjustments made in daily respiratory care among pwCF taking HEMT and the feasibility of treatment simplification. RECENT FINDINGS Treatment simplification has been identified as a top priority among pwCF, with recent studies showing pwCF are willing to sacrifice mild to moderate amounts of lung function and longevity to reduce treatment burden. Retrospective studies have shown that patients taking HEMT with better baseline lung function have lower adherence to and prescription of inhaled medications. A randomized, controlled trial found that short-term discontinuation of dornase alfa or hypertonic saline was clinically noninferior to continuation of these medications. Major knowledge gaps remain about withdrawing ACTs. SUMMARY This review highlights trials evaluating the feasibility of treatment simplification among pwCF taking HEMT. More data is needed to evaluate approaches to simplification in this phenotypically diverse patient population.
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Affiliation(s)
- Katherine E Wajda
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University Hospitals Cleveland Medical Center
- Department of Pediatrics, Division of Pediatric Pulmonology, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
| | - Erica A Roesch
- Department of Pediatrics, Division of Pediatric Pulmonology, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
| | - Alex H Gifford
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University Hospitals Cleveland Medical Center
- Department of Pediatrics, Division of Pediatric Pulmonology, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
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24
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Hergenroeder GE, Faino A, Bridges G, Bartlett LE, Cogen JD, Green N, McNamara S, Nichols DP, Ramos KJ. The impact of elexacaftor/tezacaftor/ivacaftor on fat-soluble vitamin levels in people with cystic fibrosis. J Cyst Fibros 2023; 22:1048-1053. [PMID: 37563007 PMCID: PMC10843772 DOI: 10.1016/j.jcf.2023.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND While elexacaftor/tezacaftor/ivacaftor (ETI) has improved the pulmonary health of many people with cystic fibrosis (PwCF), less is known about ETI effectiveness for extra-pulmonary manifestations, including fat-soluble vitamin malabsorption. This study aims to evaluate ETI's impact on vitamin A, D, E, and international normalized ratio (INR, an indirect marker for Vitamin K) serum levels. METHODS Retrospective cohort study of PwCF ≥12 years receiving ETI. Vitamin levels up to four years preceding and up to two years following ETI initiation were collected. Pairwise comparisons of vitamin levels pre/post-ETI initiation were made using Wilcoxon signed rank and McNemar's tests. Linear mixed effect models were used to regress vitamin levels on time since starting ETI, ETI use (yes/no), the interaction between time and ETI use, and age. RESULTS Two hundred and sixty-four participants met study inclusion, and 169 (64%) had post-ETI initiation vitamin levels. Median vitamin A levels increased from 422.0 to 471.0 mcg/L (p < 0.001), median vitamin D levels increased from 28.5 to 30.8 ng/mL (p = 0.003), and there were no significant changes in median vitamin E or INR. Vitamin A levels rose at a rate of 40.7 mcg/L/year (CI 11.3, 70.2) after ETI start. CONCLUSIONS ETI initiation is associated with increased median vitamin A and vitamin D levels, but no change in median vitamin E or INR levels. Ongoing monitoring of vitamin levels after ETI initiation is needed to screen for potential deficiencies and toxicities, particularly in light of case reports of hypervitaminosis A following ETI initiation.
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Affiliation(s)
- Georgene E Hergenroeder
- Division of Pulmonary and Sleep Medicine, Seattle Children's Hospital; Department of Pediatrics, University of Washington.
| | - Anna Faino
- Core for Biostatistics, Epidemiology, and Analytics in Research, Seattle Children's Research Institute
| | - Gracia Bridges
- Division of Pulmonary and Sleep Medicine, Seattle Children's Hospital
| | - Lauren E Bartlett
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington
| | - Jonathan D Cogen
- Division of Pulmonary and Sleep Medicine, Seattle Children's Hospital; Department of Pediatrics, University of Washington
| | - Nicole Green
- Department of Pediatrics, University of Washington; Division of Gastroenterology and Hepatology, Seattle Children's Hospital
| | - Sharon McNamara
- Division of Pulmonary and Sleep Medicine, Seattle Children's Hospital
| | | | - Kathleen J Ramos
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington
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25
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Stephenson KG, Lingle AJ, Baumberger KA, Dellon EP, Esther CR, Meier EM, Oermann CM, Shenoy VK, Smith NR, Wimmer NS, Duehlmeyer SR, Kam CW, McKinzie CJ, Poisson MO, Elson EC. Changes in fecal elastase-1 following initiation of CFTR modulator therapy in pediatric patients with cystic fibrosis. J Cyst Fibros 2023; 22:996-1001. [PMID: 37758535 DOI: 10.1016/j.jcf.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/14/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Improvement in exocrine pancreatic function in persons with CF (pwCF) on cystic fibrosis transmembrane conductance regulator (CFTR) modulators has been documented in clinical trials using fecal pancreatic elastase-1 (FE-1). Our group endeavored to evaluate real-world data on FE-1 in children on CFTR modulator therapy at three pediatric cystic fibrosis (CF) centers. METHODS Pediatric pwCF were offered FE-1 testing if they were on pancreatic enzyme replacement therapy (PERT) and on CFTR modulator therapy according to their center's guideline. FE-1 data were collected retrospectively. The primary outcome was absolute change in FE-1. RESULTS 70 pwCF were included for analysis. 53 had baseline and post-modulator FE-1 values. There was a significant increase in FE-1 from median 25 mcg/g (IQR 25-60) at baseline to 57 mcg/g (IQR 20-228) post-modulator (p<0.001 by Wilcoxon matched pairs), with an absolute change in FE-1 of median 28 mcg/g (IQR -5-161) and mean 93.5 ± 146.8 mcg/g. Age was negatively correlated with change in FE-1 (Spearman r=-0.48, p<0.001). 15 pwCF (21%) had post-modulator FE-1 values ≥200 mcg/g, consistent with pancreatic sufficiency (PS). The PS group was significant for younger age at initiation of first CFTR modulator and a higher baseline FE-1. CONCLUSIONS Most pwCF experienced an increase in FE-1 while receiving CFTR modulator treatment and a small percentage demonstrated values reflective of PS. These data suggest that PS may be attained in those that initiated modulator therapy at a younger age or had a higher baseline FE-1. FE-1 testing is suggested for children on any CFTR modulator therapy.
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Affiliation(s)
- Kimberly G Stephenson
- Department of Nutrition, University of North Carolina Medical Center, 101 Manning Drive, Chapel Hill, NC 27514, United States.
| | - Abby J Lingle
- Department of Pharmacy, Children's Mercy Kansas City, 2401 Gillham Road, Kansas City, MO 64108, United States
| | - Kelly A Baumberger
- Department of Nutrition, University of North Carolina Medical Center, 101 Manning Drive, Chapel Hill, NC 27514, United States
| | - Elisabeth P Dellon
- Division of Pediatric Pulmonology, University of North Carolina at Chapel Hill, 247 MacNider Building CB# 7217, 333 S. Columbia Street, Chapel Hill, NC 27599-7217, United States
| | - Charles R Esther
- Division of Pediatric Pulmonology, University of North Carolina at Chapel Hill, 247 MacNider Building CB# 7217, 333 S. Columbia Street, Chapel Hill, NC 27599-7217, United States
| | - Ellen M Meier
- Department of Pediatrics, Children's Mercy - Kansas City, 2401 Gillham Road, Kansas City, MO 64108, United States
| | - Christopher M Oermann
- Department of Pediatrics, Children's Mercy - Kansas City, 2401 Gillham Road, Kansas City, MO 64108, United States
| | - Vivek K Shenoy
- Division of Pediatric Gastroenterology, University of North Carolina, 247 MacNider Building CB# 7229, 333 S. Columbia Street, Chapel Hill, NC 27599-7229, United States
| | - Natalie R Smith
- Department of Nutrition, Children's Hospital of Georgia, 1447 Harper Street, BP 3252, Augusta, GA 30912, United States
| | - Nicole S Wimmer
- Division of Pediatric Pulmonology, Children's Hospital of Georgia, 1447 Harper Street, Augusta, GA 30912, United States
| | - Stephanie R Duehlmeyer
- Department of Pharmacy, Children's Mercy Kansas City, 2401 Gillham Road, Kansas City, MO 64108, United States
| | - Charissa W Kam
- Department of Pharmacy, University of North Carolina Medical Center, 101 Manning Drive, CB 7600, Chapel Hill, NC 27514, United States
| | - Cameron J McKinzie
- Department of Pharmacy, University of North Carolina Medical Center, 101 Manning Drive, CB 7600, Chapel Hill, NC 27514, United States
| | - Margaret O Poisson
- Department of Pharmacy, Children's Hospital of Georgia, 1120 15th Street, Augusta, GA 30912, United States
| | - E Claire Elson
- Department of Pharmacy, Children's Mercy Kansas City, 2401 Gillham Road, Kansas City, MO 64108, United States
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26
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Affiliation(s)
- Sabina Sabharwal
- From the Division of Gastroenterology and Nutrition & Harvard Medical School, Boston Children's Hospital, Boston, MA
| | - Sarah Shrager Lusman
- the Division of Pediatric Gastroenterology, Hepatology and Nutrition, Columbia University Irving Medical Center, New York, NY
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27
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Wu K, Karapetyan E, Schloss J, Vadgama J, Wu Y. Advancements in small molecule drug design: A structural perspective. Drug Discov Today 2023; 28:103730. [PMID: 37536390 PMCID: PMC10543554 DOI: 10.1016/j.drudis.2023.103730] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/19/2023] [Accepted: 07/27/2023] [Indexed: 08/05/2023]
Abstract
In this review, we outline recent advancements in small molecule drug design from a structural perspective. We compare protein structure prediction methods and explore the role of the ligand binding pocket in structure-based drug design. We examine various structural features used to optimize drug candidates, including functional groups, stereochemistry, and molecular weight. Computational tools such as molecular docking and virtual screening are discussed for predicting and optimizing drug candidate structures. We present examples of drug candidates designed based on their molecular structure and discuss future directions in the field. By effectively integrating structural information with other valuable data sources, we can improve the drug discovery process, leading to the identification of novel therapeutics with improved efficacy, specificity, and safety profiles.
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Affiliation(s)
- Ke Wu
- Division of Cancer Research and Training, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, David Geffen UCLA School of Medicine and UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095, USA
| | - Eduard Karapetyan
- Division of Cancer Research and Training, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, David Geffen UCLA School of Medicine and UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095, USA
| | - John Schloss
- Division of Cancer Research and Training, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, David Geffen UCLA School of Medicine and UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095, USA; School of Pharmacy, American University of Health Sciences, Signal Hill, CA 90755, USA
| | - Jaydutt Vadgama
- Division of Cancer Research and Training, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, David Geffen UCLA School of Medicine and UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095, USA; School of Pharmacy, American University of Health Sciences, Signal Hill, CA 90755, USA.
| | - Yong Wu
- Division of Cancer Research and Training, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, David Geffen UCLA School of Medicine and UCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095, USA.
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Mailhot G, Denis MH, Beauchamp-Parent C, Jomphe V. Nutritional management of people living with cystic fibrosis throughout life and disease continuum: Changing times, new challenges. J Hum Nutr Diet 2023; 36:1675-1691. [PMID: 37515397 DOI: 10.1111/jhn.13214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023]
Abstract
Cystic fibrosis (CF) is a genetic disease caused by mutations in the gene encoding for the ion channel cystic fibrosis transmembrane conductance regulator (CFTR). The management of CF disease has evolved in recent decades from treating downstream disease manifestations affecting the airways, the lungs and the gastrointestinal system to addressing the CFTR gene defect. The advent of CFTR modulators, which correct the functionality of the defective CFTR, contributes to reshaping the landscape of CF demographics, prognosis and therapies, including nutritional management. A spectrum of clinical manifestations is emerging within the same patient population where undernutrition and nutritional deficiencies coexist with excessive weight gain and metabolic derangements. Such contrasting presentations challenge current practices, require adjustments to traditional approaches, and involve more individualised interventions. This narrative review examines the current state of knowledge on the nutritional management of people living with cystic fibrosis from early life to adulthood in the era of CFTR modulation.
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Affiliation(s)
- Geneviève Mailhot
- Department of Nutrition, Faculty of Medicine, Montreal, QC, Canada
- CHU Sainte-Justine Research Center, Montreal, QC, Canada
| | | | | | - Valérie Jomphe
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada
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Taylor-Cousar JL, Robinson PD, Shteinberg M, Downey DG. CFTR modulator therapy: transforming the landscape of clinical care in cystic fibrosis. Lancet 2023; 402:1171-1184. [PMID: 37699418 DOI: 10.1016/s0140-6736(23)01609-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 09/14/2023]
Abstract
Following discovery of the cystic fibrosis transmembrane conductance regulator (CFTR) gene in 1989 and subsequent elucidation of the varied CFTR protein abnormalities that result, a new era of cystic fibrosis management has emerged-one in which scientific principles translated from the bench to the bedside have enabled us to potentially treat the basic defect in the majority of children and adults with cystic fibrosis, with a resultant burgeoning adult cystic fibrosis population. However, the long-term effects of these therapies on the multiple manifestations of cystic fibrosis are still under investigation. Understanding the effects of modulators in populations excluded from clinical trials is also crucial. Furthermore, establishing appropriate disease measures to assess efficacy in the youngest potential trial participants and in those whose post-modulator lung function is in the typical range for people without chronic lung disease is essential for continued drug development. Finally, recognising that a health outcome gap has been created for some people and widened for others who are not eligible for, cannot tolerate, or do not have access to modulators is important.
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Affiliation(s)
- Jennifer L Taylor-Cousar
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver, CO, USA; Division of Pediatric Pulmonary Medicine, National Jewish Health, Denver, CO, USA; Division of Pulmonary Sciences and Critical Care Medicine, Anschutz Medical Campus, University of Colorado, Aurora, CO, USA.
| | - Paul D Robinson
- Department of Respiratory Medicine, Queensland Children's Hospital, Brisbane, QLD, Australia; Children's Health and Environment Program, Child Health Research Centre, University of Queensland, Brisbane, QLD, Australia
| | - Michal Shteinberg
- Pulmonology Institute and CF Center, Carmel Medical Center, Haifa, Israel; B Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Damian G Downey
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
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Zhu Y, Li D, Reyes-Ortega F, Chinnery HR, Schneider-Futschik EK. Ocular development after highly effective modulator treatment early in life. Front Pharmacol 2023; 14:1265138. [PMID: 37795027 PMCID: PMC10547496 DOI: 10.3389/fphar.2023.1265138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 09/06/2023] [Indexed: 10/06/2023] Open
Abstract
Highly effective cystic fibrosis (CF) transmembrane conductance regulator (CFTR) modulator therapies (HEMT), including elexacaftor-tezacaftor-ivacaftor, correct the underlying molecular defect causing CF. HEMT decreases general symptom burden by improving clinical metrics and quality of life for most people with CF (PwCF) with eligible CFTR variants. This has resulted in more pregnancies in women living with CF. All HEMT are known to be able pass through the placenta and into breast milk in mothers who continue on this therapy while pregnant and breast feeding. Toxicity studies of HEMT in young rats demonstrated infant cataracts, and case reports have reported the presence of congenital cataracts in early life exposure to HEMT. This article reviews the evidence for how HEMT influences the dynamic and interdependent processes of healthy and abnormal lens development in the context of HEMT exposure during pregnancy and breastfeeding, and raises questions that remain unanswered.
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Affiliation(s)
- Yimin Zhu
- Department of Biochemistry and Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Danni Li
- Department of Biochemistry and Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Felisa Reyes-Ortega
- Department of Biochemistry and Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
- Department of Ophthalmology, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital and University of Cordoba, Cordoba, Spain
| | - Holly R. Chinnery
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Elena K. Schneider-Futschik
- Department of Biochemistry and Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
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Abstract
Cystic fibrosis (CF) is an autosomal recessive genetic disease caused by variants in the gene encoding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. CFTR dysfunction results in abnormal chloride and bicarbonate transport in epithelial cells, leading to a multiorgan disease dominated by respiratory and digestive manifestations. The respiratory disease, which is characterized by airway mucus plugging, chronic bacterial infection and progressive development of bronchiectasis, may lead to chronic respiratory failure, which is the main cause of premature death in people with CF. Over the past 50 years, major progress has been obtained by implementing multidisciplinary care, including nutritional support, airway clearance techniques and antibiotics in specialized CF centers. The past 10 years have further seen the progressive development of oral medications, called CFTR modulators, that partially restore ion transport and lead to a major improvement in clinical manifestations and lung function, presumably resulting in longer survival. Although an increasing proportion of people with CF are being treated with CFTR modulators, challenges remain regarding access to CFTR modulators due to their high cost, and their lack of marketing approval and/or effectiveness in people with rare CFTR variants. The anticipated increase in the number of adults with CF and their aging also challenge the current organization of CF care. The purpose of this review article is to describe current status and future perspective of CF disease and care.
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Affiliation(s)
- Isabelle Fajac
- Department of Respiratory Medicine and National Cystic Fibrosis Reference Centre, Cochin Hospital, Assistance Publique Hôpitaux de Paris, 27 rue du faubourg Saint-Jacques, 75014 Paris, France; Université Paris Cité, Inserm U1016, Institut Cochin, 24 rue du faubourg Saint-Jacques, 75014 Paris, France; ERN-LUNG, CF Core Network, Frankfurt, Germany.
| | - Pierre-Régis Burgel
- Department of Respiratory Medicine and National Cystic Fibrosis Reference Centre, Cochin Hospital, Assistance Publique Hôpitaux de Paris, 27 rue du faubourg Saint-Jacques, 75014 Paris, France; Université Paris Cité, Inserm U1016, Institut Cochin, 24 rue du faubourg Saint-Jacques, 75014 Paris, France; ERN-LUNG, CF Core Network, Frankfurt, Germany.
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Schütz K, Pallenberg ST, Kontsendorn J, DeLuca D, Sukdolak C, Minso R, Büttner T, Wetzke M, Dopfer C, Sauer-Heilborn A, Ringshausen FC, Junge S, Tümmler B, Hansen G, Dittrich AM. Spirometric and anthropometric improvements in response to elexacaftor/tezacaftor/ivacaftor depending on age and lung disease severity. Front Pharmacol 2023; 14:1171544. [PMID: 37469865 PMCID: PMC10352657 DOI: 10.3389/fphar.2023.1171544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/22/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction: Triple-combination cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapy with elexacaftor/tezacaftor/ivacaftor (ETI) was introduced in August 2020 in Germany for people with CF (pwCF) ≥12 years (yrs.) of age and in June 2021 for pwCF ≥6 yrs of age. In this single-center study, we analyzed longitudinal data on the percent-predicted forced expiratory volume (ppFEV1) and body-mass-index (BMI) for 12 months (mo.) after initiation of ETI by linear mixed models and regression analyses to identify age- and severity-dependent determinants of response to ETI. Methods: We obtained data on 42 children ≥6-11 yrs, 41 adolescents ≥12-17 yrs, and 143 adults by spirometry and anthropometry prior to ETI, and 3 and 12 mo. after ETI initiation. Data were stratified by the age group and further sub-divided into age-specific ppFEV1 impairment. To achieve this, the age strata were divided into three groups, each according to their baseline ppFEV1: lowest 25%, middle 50%, and top 25% of ppFEV1. Results: Adolescents and children with more severe lung disease prior to ETI (within the lowest 25% of age-specific ppFEV1) showed higher improvements in lung function than adults in this severity group (+18.5 vs. +7.5; p = 0.002 after 3 mo. and +13.8 vs. +7.2; p = 0.012 after 12 mo. of ETI therapy for ≥12-17 years and +19.8 vs. +7.5; p = 0.007 after 3 mo. for children ≥6-11 yrs). In all age groups, participants with more severe lung disease showed higher BMI gains than those with medium or good lung function (within the middle 50% or top 25% of age-specific ppFEV1). Regression analyses identified age as a predictive factor for FEV1 increase at 3 mo. after ETI initiation, and age and ppFEV1 at ETI initiation as predictive factors for FEV1 increase 12 mo. after ETI initiation. Discussion: We report initial data, which suggest that clinical response toward ETI depends on age and lung disease severity prior to ETI initiation, which argue for early initiation of ETI.
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Affiliation(s)
- Katharina Schütz
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Sophia Theres Pallenberg
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Julia Kontsendorn
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - David DeLuca
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Cinja Sukdolak
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Rebecca Minso
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Tina Büttner
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
| | - Martin Wetzke
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Christian Dopfer
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | | | - Felix C. Ringshausen
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
- European Reference Network on Rare and Complex Respiratory Diseases (ERN-LUNG), Frankfurt, Germany
| | - Sibylle Junge
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Burkhard Tümmler
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Anna-Maria Dittrich
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
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Sadras I, Cohen-Cymberknoh M, Kerem E, Koplewitz BZ, Simanovsky N, Wilschanski M, Birimberg-Schwartz L, Breuer O. Acute pancreatitis in pancreatic-insufficient cystic fibrosis patients treated with CFTR modulators. J Cyst Fibros 2023; 22:777-779. [PMID: 36914434 DOI: 10.1016/j.jcf.2023.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/31/2023] [Accepted: 02/27/2023] [Indexed: 03/13/2023]
Abstract
Cystic fibrosis transmembrane conductance regulator modulator therapy is associated with substantial clinical benefit and improved quality of life in patients with cystic fibrosis (CF). While their effect on lung function has been clearly reported, we are still in the process of unraveling the full impact they have on the pancreas. We present two cases of pancreatic-insufficient CF patients who presented with acute pancreatitis shortly after commencing elexacaftor/tezacaftor/ivacaftor modulator therapy. Both patients were treated with ivacaftor for 5 years prior to elexacaftor/tezacaftor/ivacaftor initiation, but had no previous episodes of acute pancreatitis. We suggest that highly effective modulator combination therapy may restore additional pancreatic acinar activity, resulting in the development of acute pancreatitis in the interim until ductal flow is improved. This report adds to the growing evidence for possible restoration of pancreatic function in patients receiving modulator therapy, and highlights that treatment with elexacaftor/tezacaftor/ivacaftor may be associated with acute pancreatitis until ductal flow is restored, even in pancreatic-insufficient CF patients.
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Affiliation(s)
- Ido Sadras
- CF Center, Department of Pediatrics, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Malena Cohen-Cymberknoh
- CF Center, Department of Pediatrics, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Eitan Kerem
- CF Center, Department of Pediatrics, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Benjamin Z Koplewitz
- Department Radiology, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Natalia Simanovsky
- Department Radiology, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Michael Wilschanski
- CF Center, Department of Pediatrics, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Liron Birimberg-Schwartz
- CF Center, Department of Pediatrics, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel; Hadassah Organoid Center, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Oded Breuer
- CF Center, Department of Pediatrics, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.
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Wainwright C, McColley SA, McNally P, Powers M, Ratjen F, Rayment JH, Retsch-Bogart G, Roesch E, Ahluwalia N, Chin A, Chu C, Lu M, Menon P, Waltz D, Weinstock T, Zelazoski L, Davies JC. Long-Term Safety and Efficacy of Elexacaftor/Tezacaftor/Ivacaftor in Children Aged ⩾6 Years with Cystic Fibrosis and at Least One F508del Allele: A Phase 3, Open-Label Clinical Trial. Am J Respir Crit Care Med 2023; 208:68-78. [PMID: 37154609 PMCID: PMC10870850 DOI: 10.1164/rccm.202301-0021oc] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/05/2023] [Indexed: 05/10/2023] Open
Abstract
Rationale: A 24-week, phase 3, open-label study showed elexacaftor/tezacaftor/ivacaftor (ELX/TEZ/IVA) was safe and efficacious in children aged 6-11 years with cystic fibrosis (CF) and one or more F508del-CFTR alleles. Objectives: To assess long-term safety and efficacy of ELX/TEZ/IVA in children who completed the pivotal 24-week phase 3 trial. Methods: In this phase 3, two-part (part A and part B), open-label extension study, children aged ⩾6 years with CF heterozygous for F508del and a minimal function CFTR mutation (F/MF genotypes) or homozygous for F508del (F/F genotype) who completed the 24-week parent study received ELX/TEZ/IVA based on weight. Children weighing <30 kg received ELX 100 mg once daily/TEZ 50 mg once daily/IVA 75 mg every 12 hours, whereas children weighing ⩾30 kg received ELX 200 mg once daily/TEZ 100 mg once daily/IVA 150 mg every 12 hours (adult dose). The 96-week analysis of part A of this extension study is reported here. Measurements and Main Results: Sixty-four children (F/MF genotypes, n = 36; F/F genotype, n = 28) were enrolled and received one or more doses of ELX/TEZ/IVA. Mean (SD) period of exposure to ELX/TEZ/IVA was 93.9 (11.1) weeks. The primary endpoint was safety and tolerability. Adverse events and serious adverse events were consistent with common manifestations of CF disease. Overall, exposure-adjusted rates of adverse events and serious adverse events (407.74 and 4.72 events per 100 patient-years) were lower than in the parent study (987.04 and 8.68 events per 100 patient-years). One child (1.6%) had an adverse event of aggression that was moderate in severity and resolved after study drug discontinuation. From parent study baseline at Week 96 of this extension study, the mean percent predicted FEV1 increased (11.2 [95% confidence interval (CI), 8.3 to 14.2] percentage points), sweat chloride concentration decreased (-62.3 [95% CI, -65.9 to -58.8] mmol/L), Cystic Fibrosis Questionnaire-Revised respiratory domain score increased (13.3 [95% CI, 11.4 to 15.1] points), and lung clearance index 2.5 decreased (-2.00 [95% CI, -2.45 to -1.55] units). Increases in growth parameters were also observed. The estimated pulmonary exacerbation rate per 48 weeks was 0.04. The annualized rate of change in percent predicted FEV1 was 0.51 (95% CI, -0.73 to 1.75) percentage points per year. Conclusions: ELX/TEZ/IVA continued to be generally safe and well tolerated in children aged ⩾6 years through an additional 96 weeks of treatment. Improvements in lung function, respiratory symptoms, and CFTR function observed in the parent study were maintained. These results demonstrate the favorable long-term safety profile and durable clinical benefits of ELX/TEZ/IVA in this pediatric population. Clinical trial registered with www.clinicaltrials.gov (NCT04183790).
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Affiliation(s)
- Claire Wainwright
- Queensland Children’s Hospital, South Brisbane, Queensland, Australia
- Child Health Research Centre, University of Queensland, South Brisbane, Queensland, Australia
| | - Susanna A. McColley
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Paul McNally
- Children’s Health Ireland, Dublin, Ireland
- Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | | | | | | | | | - Erica Roesch
- University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Neil Ahluwalia
- Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
| | - Anna Chin
- Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
| | - Chenghao Chu
- Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
| | - Mengdi Lu
- Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
| | - Prema Menon
- Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
| | - David Waltz
- Vertex Pharmaceuticals Incorporated, Boston, Massachusetts
| | | | | | - Jane C. Davies
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
- Royal Brompton Hospital, Part of Guy’s and St. Thomas’ NHS Trust, London, United Kingdom
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Abstract
Importance Cystic fibrosis, a genetic disorder defined by variants in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, affects more than 30 000 individuals in the US and approximately 89 000 worldwide. Absent or decreased function of the CFTR protein is associated with multiorgan dysfunction and shortened life expectancy. Observations CFTR is an anion channel in the apical membrane of epithelial cells. Loss of function leads to obstructed exocrine glands. Of people with cystic fibrosis in the US, approximately 85.5% have the gene variant F508del. Manifestations of cystic fibrosis in patients with the F508del gene variant begin in infancy with steatorrhea, poor weight gain, and respiratory symptoms (coughing, wheezing). As people with cystic fibrosis age, chronic respiratory bacterial infections cause loss of lung function and bronchiectasis. With the availability of universal newborn screening in multiple countries including the US, many people with cystic fibrosis are asymptomatic at diagnosis. With multidisciplinary care teams that included dietitians, respiratory therapists, and social workers, treatment of cystic fibrosis can slow disease progression. Median survival has improved from 36.3 years (95% CI, 35.1-37.9) in 2006 to 53.1 years (95% CI, 51.6-54.7) in 2021. Pulmonary therapies for patients with cystic fibrosis consist of mucolytics (eg, dornase alfa), anti-inflammatories (eg, azithromycin), and antibiotics (such as tobramycin delivered by a nebulizer). Four small molecular therapies, termed CFTR modulators, that facilitate CFTR production and/or function have received regulatory approval. Examples are ivacaftor and elexacaftor-tezacaftor-ivacaftor. For example, in patients with 1 F508del variant, the combination of ivacaftor, tezacaftor, and elexacaftor improved lung function from -0.2% in the placebo group to 13.6% (difference, 13.8%; 95% CI, 12.1%-15.4%) and decreased the annualized estimated rate of pulmonary exacerbations from 0.98 to 0.37 (rate ratio, 0.37; 95% CI, 0.25-0.55). Improved respiratory function and symptoms have lasted up to 144 weeks in postapproval observational studies. An additional 177 variants are eligible for treatment with the elexacaftor-tezacaftor-ivacaftor combination. Conclusion Cystic fibrosis affects approximately 89 000 people worldwide and is associated with a spectrum of disease related to exocrine dysfunction, including chronic respiratory bacterial infections and reduced life expectancy. First-line pulmonary therapies consist of mucolytics, anti-inflammatories, and antibiotics, and approximately 90% of people with cystic fibrosis who are 2 years or older may benefit from a combination of ivacaftor, tezacaftor, and elexacaftor.
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Affiliation(s)
- Thida Ong
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, University of Washington, Seattle Children's Hospital, Seattle
| | - Bonnie W Ramsey
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, University of Washington, Seattle Children's Hospital, Seattle
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Regard L, Martin C, Da Silva J, Burgel PR. CFTR Modulators: Current Status and Evolving Knowledge. Semin Respir Crit Care Med 2023; 44:186-195. [PMID: 36535667 DOI: 10.1055/s-0042-1758851] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In the past decade, the medical management of people with cystic fibrosis (pwCF) has changed with the development of small molecules that partially restore the function of the defective CF transmembrane conductance regulator (CFTR) protein and are called CFTR modulators. Ivacaftor (IVA), a CFTR potentiator with a large effect on epithelial ion transport, was the first modulator approved in pwCF carrying gating mutations. Because IVA was unable to restore sufficient CFTR function in pwCF with other mutations, two CFTR correctors (lumacaftor and tezacaftor) were developed and used in combination with IVA in pwCF homozygous for F508del, the most common CFTR variant. However, LUM/IVA and TEZ/IVA were only moderately effective in F508del homozygous pwCF and had no efficacy in those with F508del and minimal function mutations. Elexacaftor, a second-generation corrector, was thus developed and combined to tezacaftor and ivacaftor (ELX/TEZ/IVA) to target pwCF with at least one F508del variant, corresponding to approximately 85% of pwCF. Both IVA and ELX/TEZ/IVA are considered highly effective modulator therapies (HEMTs) in eligible pwCF and are now approved for nearly 90% of the CF population over 6 years of age. HEMTs are responsible for rapid improvement in respiratory manifestations, including improvement in symptoms and lung function, and reduction in the rate of pulmonary exacerbations. The impact of HEMT on extrapulmonary manifestations of CF is less well established, although significant weight gain and improvement in quality of life have been demonstrated. Recent clinical trials and real-world studies suggest that benefits of HEMT could even prove greater when used earlier in life (i.e., in younger children and infants). This article shortly reviews the past 10 years of development and use of CFTR modulators. Effects of HEMT on extrapulmonary manifestations and on CF demographics are also discussed.
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Affiliation(s)
- Lucile Regard
- Department of Respiratory Medicine and French Cystic Fibrosis National Reference Center, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France.,Institut Cochin and Université de Paris, INSERM U1016, Paris, France.,ERN Lung Cystic Fibrosis Network, Frankfurt, Germany
| | - Clémence Martin
- Department of Respiratory Medicine and French Cystic Fibrosis National Reference Center, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France.,Institut Cochin and Université de Paris, INSERM U1016, Paris, France.,ERN Lung Cystic Fibrosis Network, Frankfurt, Germany
| | - Jennifer Da Silva
- Department of Respiratory Medicine and French Cystic Fibrosis National Reference Center, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France.,ERN Lung Cystic Fibrosis Network, Frankfurt, Germany
| | - Pierre-Régis Burgel
- Department of Respiratory Medicine and French Cystic Fibrosis National Reference Center, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France.,Institut Cochin and Université de Paris, INSERM U1016, Paris, France.,ERN Lung Cystic Fibrosis Network, Frankfurt, Germany
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Yuzyuk TN, Nelson HA, Johnson LM. Inherited causes of exocrine pancreatic insufficiency in pediatric patients: clinical presentation and laboratory testing. Crit Rev Clin Lab Sci 2023:1-16. [PMID: 36876586 DOI: 10.1080/10408363.2023.2179968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Pediatric patients with exocrine pancreatic insufficiency (EPI) have symptoms that include abdominal pain, weight loss or poor weight gain, malnutrition, and steatorrhea. This condition can be present at birth or develop during childhood for certain genetic disorders. Cystic fibrosis (CF) is the most prevalent disorder in which patients are screened for EPI; other disorders also are associated with pancreatic dysfunction, such as hereditary pancreatitis, Pearson syndrome, and Shwachman-Diamond syndrome. Understanding the clinical presentation and proposed pathophysiology of the pancreatic dysfunction of these disorders aids in diagnosis and treatment. Testing pancreatic function is challenging. Directly testing aspirates produced from the pancreas after stimulation is considered the gold standard, but the procedures are not standardized or widely available. Instead, indirect tests are often used in diagnosis and monitoring. Although indirect tests are more widely available and easier to perform, they have inherent limitations due to a lack of sensitivity and/or specificity for EPI.
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Affiliation(s)
- Tatiana N Yuzyuk
- Department of Pathology, University of Utah/ARUP Laboratories, Salt Lake City, UT, USA
| | - Heather A Nelson
- Department of Pathology, University of Utah/ARUP Laboratories, Salt Lake City, UT, USA
| | - Lisa M Johnson
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
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Schwarzenberg SJ, Vu PT, Skalland M, Hoffman LR, Pope C, Gelfond D, Narkewicz MR, Nichols DP, Heltshe SL, Donaldson SH, Frederick CA, Kelly A, Pittman JE, Ratjen F, Rosenfeld M, Sagel SD, Solomon GM, Stalvey MS, Clancy JP, Rowe SM, Freedman SD. Elexacaftor/tezacaftor/ivacaftor and gastrointestinal outcomes in cystic fibrosis: Report of promise-GI. J Cyst Fibros 2023; 22:282-289. [PMID: 36280527 PMCID: PMC10144072 DOI: 10.1016/j.jcf.2022.10.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 09/12/2022] [Accepted: 10/10/2022] [Indexed: 02/19/2023]
Abstract
BACKGROUND Elexacaftor/tezacaftor/ivacaftor (ETI) improves pulmonary disease in people with cystic fibrosis (PwCF), but its effect on gastrointestinal symptoms, which also affect quality of life, is not clear. METHODS PROMISE is a 56-center prospective, observational study of ETI in PwCF >12 years and at least one F508del allele. Gastrointestinal symptoms, evaluated by validated questionnaires: Patient Assessment of Upper Gastrointestinal Disorders-Symptom (PAGI-SYM), Patient Assessment of Constipation-Symptom (PAC-SYM), Patient Assessment of Constipation-Quality of Life (PAC-QOL)), fecal calprotectin, steatocrit and elastase-1 were measured before and 6 months after ETI initiation. Mean difference and 95% confidence intervals were obtained from linear regression with adjustment for age and sex. RESULTS 438 participants fully completed at least 1 questionnaire. Mean (SD) for baseline PAGI-SYM, PAC-SYM, and PAC-QOL total scores were 0.56 (0.59), 0.47 (0.45), and 0.69 (0.53) out of maximum 5, 4, and 5, respectively (higher score indicates greater severity). Corresponding age- and sex-adjusted 6 months mean changes (95% CI) in total scores were -0.15 (-0.21, -0.09) for PAGI-SYM, -0.14 (-0.19, -0.09) for PAC-SYM, and -0.15 (-0.21, -0.10) for PAC-QOL. While statistically significant, changes were small and unlikely to be of clinical importance. Fecal calprotectin showed a change (95% CI) from baseline of -66.2 µg/g (-86.1, -46.2) at 6 months, while fecal elastase and steatocrit did not meaningfully change. CONCLUSIONS After 6 months of ETI, fecal markers of inflammation decreased. Gastrointestinal symptoms improved, but the effect size was small. Pancreatic insufficiency did not improve.
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Affiliation(s)
- Sarah Jane Schwarzenberg
- Department of Pediatrics, University of Minnesota Masonic Children's Hospital, Academic Office Building, 2450 Riverside Ave S AO-201, Minneapolis, MN 55454, USA.
| | - Phuong T Vu
- Cystic Fibrosis Foundation Therapeutics Development Network Coordinating Center, Seattle Children's Research Institute, Seattle, WA, USA
| | - Michelle Skalland
- Cystic Fibrosis Foundation Therapeutics Development Network Coordinating Center, Seattle Children's Research Institute, Seattle, WA, USA
| | - Lucas R Hoffman
- Department of Pediatrics and Department of Microbiology, University of Washington School of Medicine, Seattle, WA, USA
| | - Christopher Pope
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | | | - Michael R Narkewicz
- Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | - David P Nichols
- Cystic Fibrosis Foundation Therapeutics Development Network Coordinating Center, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - Sonya L Heltshe
- Cystic Fibrosis Foundation Therapeutics Development Network Coordinating Center, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - Scott H Donaldson
- Department of Medicine, University of North Carolina at Chapel Hill, NC, USA
| | - Carla A Frederick
- Jacobs School of Medicine and Biomedical Sciences of the University of Buffalo, NY, USA
| | - Andrea Kelly
- Division of Endocrinology & Diabetes, Children's Hospital of Philadelphia; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Jessica E Pittman
- Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO, USA
| | - Felix Ratjen
- Division of Respiratory Medicine, Department of Pediatrics, Translational Medicine, Hospital for Sick Children, University of Toronto, Canada
| | - Margaret Rosenfeld
- Department of Epidemiology and Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - Scott D Sagel
- Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | - George M Solomon
- Department of Medicine and the Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael S Stalvey
- Department of Pediatrics and the Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Steven M Rowe
- Department of Medicine and the Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Steven D Freedman
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Sathe M, Moshiree B, Aliaj E, Lee M, Hudson J, Gifford A, Attel S, Gamel B, Freedman SD, Schwarzenberg SJ, Freeman AJ. Need to study simplification of gastrointestinal medication regimen in cystic fibrosis in the era of highly effective modulators. Pediatr Pulmonol 2023; 58:811-818. [PMID: 36448312 DOI: 10.1002/ppul.26257] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/13/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022]
Abstract
INTRODUCTION The success of highly effective modulator therapy (HEMT) has led to consideration of simpler regimens for people with CF (PwCF) with opportunities to modify burdensome regimens. Despite the intuitive appeal of discontinuing chronic therapies no longer necessary, this process should be pursued systematically to ensure safety, adherence, and validate patient-centered preferences. We designed a questionnaire to determine the state of use of acid-suppressive medications (ASM) and pancreatic enzyme therapy (PERT), current self-withdrawal and provider-directed withdrawal practices, and interest in a standardized withdrawal study. METHODS In collaboration with CF Foundation (CFF), a questionnaire was developed and distributed to members of Community Voice (CV, comprised of PwCF and their loved ones), and CF providers regarding the need to study simplifying the gastrointestinal (GI) regimen for PwCF on HEMT. RESULTS Approximately 20-40% of CV or CF providers have decreased or stopped ASM for those on HEMT. For PERT, CV and CF providers have decreased dose (34%-48% and approximately 25%, respectively) more often than having stopped it altogether (13%-24% and 3%-12%, respectively). Cumulatively, there is interest in pursuing research in this area (86% CV and 89% CF providers) and willingness to enroll in such a study (80% CV and 89% CF providers). CONCLUSION Systematically studying the withdrawal of common GI medications, ASM and PERT, is important to CV and CF providers. Decreases in dosing and withdrawal are already taking place without evidence to support this practice. This questionnaire is the first step in designing a GI medication simplification study in PwCF on HEMT.
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Affiliation(s)
- Meghana Sathe
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Texas Southwestern/Children's Health, Dallas, Texas, USA
| | - Baha Moshiree
- Division of Gastroenterology, Wake Forest/Atrium Health, Charlotte, North Carolina, USA
| | - Enid Aliaj
- Cystic Fibrosis Foundation: Community Partnerships, Bethesda, Maryland, USA
| | - MinJae Lee
- Division of Biostatistics, Department of Population & Data Sciences, University of Texas Southwestern, Dallas, Texas, USA
| | - Jessica Hudson
- Cystic Fibrosis Foundation: Community Partnerships, Bethesda, Maryland, USA
| | - Alex Gifford
- Division of Pulmonary, Critical Care, and Sleep Medicine, University Hospitals Cleveland Medical Center, Ohio, Cleveland, USA.,Division of Pediatric Pulmonology, Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
| | - Susan Attel
- Patient Representative, Children's Health, Dallas, Texas, USA
| | - Breck Gamel
- Patient Representative, Children's Health, Dallas, Texas, USA
| | - Steven D Freedman
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Sarah Jane Schwarzenberg
- University of Minnesota/MHealth Fairview Masonic Children's Hospital, Minneapolis, Minnesota, USA
| | - A Jay Freeman
- Division of Gastroenterology, Hepatology and Nutrition, Nationwide Children's Hospital/Ohio State School of Medicine, Columbus, Ohio, USA
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Vijaykumar K, Rowe SM. Lessons from other fields of medicine, Part 2: Cystic fibrosis. HANDBOOK OF CLINICAL NEUROLOGY 2023; 192:119-130. [PMID: 36796937 DOI: 10.1016/b978-0-323-85538-9.00006-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Cystic fibrosis (CF), first described in 1938, is a common, life-limiting monogenetic disease. The discovery of the cystic fibrosis transmembrane conductance regulator (CFTR) gene in 1989 was crucial in advancing our understanding of disease pathogenesis and paving the road for treatment aimed at the fundamental molecular defect. With the delineation of over 2000 variations in the CFTR gene, a sound understanding of the individual variations in cell biology, and electrophysiological abnormalities conferred by the most common defects propelled the advent of targeted disease-modifying therapeutics beginning in 2012. Since then, CF care has transformed beyond just symptomatic treatment to include a variety of small-molecule therapies that address the basic electrophysiologic defect and cause profound improvements in physiology, clinical manifestations, and long-term outcomes, designed to differentially address six genetic/molecular subtypes. This chapter illustrates the progress made toward how fundamental science and translational initiatives enabled personalized, mutation specific treatment. We highlight the importance of preclinical assays and mechanistically-driven development strategies that were coupled with sensitive biomarkers and a clinical trial cooperative to provide a platform for successful drug development. This convergence of academic and private partnerships, and formation of multidisciplinary care teams directed by evidence-based initiatives provide a seminal example of addressing the needs of individuals with a rare, but fatal genetic disease.
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Affiliation(s)
- Kadambari Vijaykumar
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States; The Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Steven M Rowe
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States; The Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, United States.
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Allen L, Allen L, Carr SB, Davies G, Downey D, Egan M, Forton JT, Gray R, Haworth C, Horsley A, Smyth AR, Southern KW, Davies JC. Future therapies for cystic fibrosis. Nat Commun 2023; 14:693. [PMID: 36755044 PMCID: PMC9907205 DOI: 10.1038/s41467-023-36244-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 01/20/2023] [Indexed: 02/10/2023] Open
Abstract
We are currently witnessing transformative change for people with cystic fibrosis with the introduction of small molecule, mutation-specific drugs capable of restoring function of the defective protein, cystic fibrosis transmembrane conductance regulator (CFTR). However, despite being a single gene disorder, there are multiple cystic fibrosis-causing genetic variants; mutation-specific drugs are not suitable for all genetic variants and also do not correct all the multisystem clinical manifestations of the disease. For many, there will remain a need for improved treatments. Those patients with gene variants responsive to CFTR modulators may have found these therapies to be transformational; research is now focusing on safely reducing the burden of symptom-directed treatment. However, modulators are not available in all parts of the globe, an issue which is further widening existing health inequalities. For patients who are not suitable for- or do not have access to- modulator drugs, alternative approaches are progressing through the trials pipeline. There will be challenges encountered in design and implementation of these trials, for which the established global CF infrastructure is a major advantage. Here, the Cystic Fibrosis National Research Strategy Group of the UK NIHR Respiratory Translational Research Collaboration looks to the future of cystic fibrosis therapies and consider priorities for future research and development.
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Affiliation(s)
| | | | - Siobhan B Carr
- Royal Brompton & Harefield Hospital, Guy's & St Thomas' Trust, London, UK
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Gwyneth Davies
- UCL Great Ormond Street Institute of Child Health, University College London, London, UK
- Great Ormond Street Hospital for Children, London, UK
| | - Damian Downey
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | | | - Julian T Forton
- Noah's Ark Children's Hospital for Wales, Cardiff, UK
- School of Medicine, Cardiff University, Cardiff, UK
| | - Robert Gray
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
- Western General Hospital, Edinburgh, UK
| | - Charles Haworth
- Royal Papworth Hospital and Department of Medicine, Cambridge, UK
- University of Cambridge, Cambridge, UK
| | - Alexander Horsley
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK
- Manchester Adult CF Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Alan R Smyth
- School of Medicine, University of Nottingham, Nottingham, UK
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
| | - Kevin W Southern
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
- Institute in the Park, Alder Hey Children's Hospital, Liverpool, UK
| | - Jane C Davies
- Royal Brompton & Harefield Hospital, Guy's & St Thomas' Trust, London, UK.
- National Heart & Lung Institute, Imperial College London, London, UK.
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Ritivoiu ME, Drăgoi CM, Matei D, Stan IV, Nicolae AC, Craiu M, Dumitrescu IB, Ciolpan AA. Current and Future Therapeutic Approaches of Exocrine Pancreatic Insufficiency in Children with Cystic Fibrosis in the Era of Personalized Medicine. Pharmaceutics 2023; 15:pharmaceutics15010162. [PMID: 36678791 PMCID: PMC9862205 DOI: 10.3390/pharmaceutics15010162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/17/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
This review presents current updates of pancreatic enzyme replacement therapy in children with cystic fibrosis based on literature published in the last decade and some special considerations regarding pancreatic enzyme replacement therapy in the era of new therapies, such as cystic fibrosis transmembrane conductance regulator modulator therapies. Few articles evaluate the efficacy of pancreatic enzyme replacement therapy in the pediatric population, and most studies also included children and adults with cystic fibrosis. Approximately 85% of cystic fibrosis patients have exocrine pancreatic insufficiency and need pancreatic enzyme replacement therapy. Fecal elastase is the most commonly used diagnostic test for exocrine pancreatic insufficiency, although this value can fluctuate over time. While it is used as a diagnostic test, it cannot be used for monitoring the effectiveness of pancreatic enzyme replacement therapy and for adjusting doses. Pancreatic enzyme replacement therapy, the actual treatment for exocrine pancreatic insufficiency, is essential in children with cystic fibrosis to prevent malabsorption and malnutrition and needs to be urgently initiated. This therapy presents many considerations for physicians, patients, and their families, including types and timing of administration, dose monitoring, and therapy failures. Based on clinical trials, pancreatic enzyme replacement therapy is considered effective and well-tolerated in children with cystic fibrosis. An important key point in cystic fibrosis treatment is the recent hypothesis that cystic fibrosis transmembrane conductance regulator modulators could improve pancreatic function, further studies being essential. Pancreatic enzyme replacement therapy is addressed a complication of the disease (exocrine pancreatic insufficiency), while modulators target the defective cystic fibrosis transmembrane conductance regulator protein. Exocrine pancreatic insufficiency in cystic fibrosis remains an active area of research in this era of cystic fibrosis transmembrane conductance regulator modulator therapies. This new therapy could represent an example of personalized medicine in cystic fibrosis patients, with each class of modulators being addressed to patients with specific genetic mutations.
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Affiliation(s)
- Mirela-Elena Ritivoiu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania
| | - Cristina Manuela Drăgoi
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020956 Bucharest, Romania
- Correspondence: (C.M.D.); (A.C.N.)
| | - Dumitru Matei
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania
| | - Iustina Violeta Stan
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania
| | - Alina Crenguţa Nicolae
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020956 Bucharest, Romania
- Correspondence: (C.M.D.); (A.C.N.)
| | - Mihai Craiu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania
| | - Ion-Bogdan Dumitrescu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 020956 Bucharest, Romania
| | - Alina Angelica Ciolpan
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania
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Simmonds NJ, van der Ent CK, Colombo C, Kinnman N, DeSouza C, Thorat T, Chew ML, Chandarana K, Castellani C. VOCAL: An observational study of ivacaftor for people with cystic fibrosis and selected non-G551D-CFTR gating mutations. J Cyst Fibros 2023; 22:124-131. [PMID: 35613999 DOI: 10.1016/j.jcf.2022.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/09/2022] [Accepted: 05/15/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND VOCAL was an observational study of the effect of long-term ivacaftor on real-world clinical outcomes and healthcare resource utilization (HCRU) in people with cystic fibrosis (pwCF) in Italy, the Netherlands, and the UK. METHODS pwCF aged ≥6 years with non-G551D-CFTR gating mutations were eligible. Prospective data were collected up to 48 months after enrollment; retrospective data were collected to ensure that 12 months of pre-ivacaftor data were available. Endpoints included absolute change from baseline in percent predicted forced expiratory volume in 1 second (ppFEV1) and measures of nutritional status. Pulmonary exacerbation (PEx) rates, HCRU, and respiratory microbiology during ivacaftor treatment were compared with data from the 12-month period before initiation. RESULTS Seventy-three eligible pwCF were enrolled and received ivacaftor; 65 (89.0%) completed the study (48 [65.8%] completed ≥48 months of ivacaftor). During the first 6 months of ivacaftor, ppFEV1, body mass index (BMI), and BMI-for-age z-score showed least-squares mean absolute improvements of 10.8 percentage points, 0.79 kg/m2, and 0.54, respectively; improvements were maintained through 48 months. Rates of PEx, antibiotic use due to PEx, and hospitalization decreased by >50% during ivacaftor treatment compared with before ivacaftor. The number of respiratory cultures and sputum was lower post-ivacaftor, as was the percentage of pwCF with positive respiratory cultures for 3 of 9 pathogens evaluated (Pseudomonas aeruginosa, Aspergillus fumigatus, Stenotrophomonas maltophilia). Reported safety results were consistent with CF and ivacaftor's known safety profile. CONCLUSIONS These results demonstrate the positive long-term effectiveness of ivacaftor on clinical outcomes and HCRU in pwCF with non-G551D-CFTR gating mutations in real-world settings.
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Affiliation(s)
- Nicholas J Simmonds
- Adult Cystic Fibrosis Centre, Royal Brompton Hospital, London, UK, and National Heart and Lung Institute, Imperial College London, London, UK.
| | - C Kors van der Ent
- Department of Pediatric Respiratory Diseases, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Carla Colombo
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Nils Kinnman
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | | | - Teja Thorat
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | - Marci L Chew
- Vertex Pharmaceuticals Incorporated, Boston, MA, USA
| | | | - Carlo Castellani
- Cystic Fibrosis Centre, IRCCS Istituto Giannina Gaslini, Genoa, Italy
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Standards of care for CFTR variant-specific therapy (including modulators) for people with cystic fibrosis. J Cyst Fibros 2023; 22:17-30. [PMID: 36916675 DOI: 10.1016/j.jcf.2022.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 11/11/2022]
Abstract
Cystic fibrosis (CF) has entered the era of variant-specific therapy, tailored to the genetic variants in the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene. CFTR modulators, the first variant-specific therapy available, have transformed the management of CF. The latest standards of care from the European CF Society (2018) did not include guidance on variant-specific therapy, as CFTR modulators were becoming established as a novel therapy. We have produced interim standards to guide healthcare professionals in the provision of variant-specific therapy for people with CF. Here we provide evidence-based guidance covering the spectrum of care, established using evidence from systematic reviews and expert opinion. Statements were reviewed by key stakeholders using Delphi methodology, with agreement (≥80%) achieved for all statements after one round of consultation. Issues around accessibility are discussed and there is clear consensus that all eligible people with CF should have access to variant-specific therapy.
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Mok LC, Garcia-Uceda A, Cooper MN, Kemner-Van De Corput M, De Bruijne M, Feyaerts N, Rosenow T, De Boeck K, Stick S, Tiddens HAWM. The effect of CFTR modulators on structural lung disease in cystic fibrosis. Front Pharmacol 2023; 14:1147348. [PMID: 37113757 PMCID: PMC10127680 DOI: 10.3389/fphar.2023.1147348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/23/2023] [Indexed: 04/29/2023] Open
Abstract
Background: Newly developed quantitative chest computed tomography (CT) outcomes designed specifically to assess structural abnormalities related to cystic fibrosis (CF) lung disease are now available. CFTR modulators potentially can reduce some structural lung abnormalities. We aimed to investigate the effect of CFTR modulators on structural lung disease progression using different quantitative CT analysis methods specific for people with CF (PwCF). Methods: PwCF with a gating mutation (Ivacaftor) or two Phe508del alleles (lumacaftor-ivacaftor) provided clinical data and underwent chest CT scans. Chest CTs were performed before and after initiation of CFTR modulator treatment. Structural lung abnormalities on CT were assessed using the Perth Rotterdam Annotated Grid Morphometric Analysis for CF (PRAGMA-CF), airway-artery dimensions (AA), and CF-CT methods. Lung disease progression (0-3 years) in exposed and matched unexposed subjects was compared using analysis of covariance. To investigate the effect of treatment in early lung disease, subgroup analyses were performed on data of children and adolescents aged <18 years. Results: We included 16 modulator exposed PwCF and 25 unexposed PwCF. Median (range) age at the baseline visit was 12.55 (4.25-36.49) years and 8.34 (3.47-38.29) years, respectively. The change in PRAGMA-CF %Airway disease (-2.88 (-4.46, -1.30), p = 0.001) and %Bronchiectasis extent (-2.07 (-3.13, -1.02), p < 0.001) improved in exposed PwCF compared to unexposed. Subgroup analysis of paediatric data showed that only PRAGMA-CF %Bronchiectasis (-0.88 (-1.70, -0.07), p = 0.035) improved in exposed PwCF compared to unexposed. Conclusion: In this preliminary real-life retrospective study CFTR modulators improve several quantitative CT outcomes. A follow-up study with a large cohort and standardization of CT scanning is needed to confirm our findings.
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Affiliation(s)
- L. Clara Mok
- Faculty of Medicine and Health Sciences, The University of Western Australia, Perth, WA, Australia
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Antonio Garcia-Uceda
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, Rotterdam, Netherlands
- Department of Pediatric Pulmonology and Allergology, Erasmus Medical Center-Sophia Children’s Hospital, Rotterdam, Netherlands
| | - Matthew N. Cooper
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | | | - Marleen De Bruijne
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, Rotterdam, Netherlands
- Department of Computer Science, University of Copenhagen, Copenhagen, Denmark
| | - Nathalie Feyaerts
- Department of Pediatric Pulmonology, University of Leuven, Leuven, Belgium
| | - Tim Rosenow
- Faculty of Medicine and Health Sciences, The University of Western Australia, Perth, WA, Australia
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Kris De Boeck
- Department of Pediatric Pulmonology, University of Leuven, Leuven, Belgium
| | - Stephen Stick
- Faculty of Medicine and Health Sciences, The University of Western Australia, Perth, WA, Australia
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
- Department of Respiratory Medicine, Perth Children’s Hospital, Perth, WA, Australia
| | - Harm A. W. M. Tiddens
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, Rotterdam, Netherlands
- Department of Pediatric Pulmonology and Allergology, Erasmus Medical Center-Sophia Children’s Hospital, Rotterdam, Netherlands
- *Correspondence: Harm A. W. M. Tiddens,
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Foucaud P, Mercier JC. CFTR pharmacological modulators: A great advance in cystic fibrosis management. Arch Pediatr 2023; 30:1-9. [PMID: 36509624 DOI: 10.1016/j.arcped.2022.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 09/16/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022]
Abstract
Cystic fibrosis is a severe monogenic disease that affects around 7400 patients in France. More than 2100 mutations in the cystic fibrosis conductance transmembrane regulator (CFTR), the gene encoding for an epithelial ion channel that normally transports chloride and bicarbonate, lead to mucus dehydration and impaired bronchial clearance. Systematic neonatal screening in France since 2002 has enabled early diagnosis of cystic fibrosis. Although highly demanding, supportive treatments including daily chest physiotherapy, inhaled aerosol therapy, frequent antibiotic courses, nutritional and pancreatic extracts have improved the prognosis. Median age at death is now beyond 30 years. Ivacaftor was the first CFTR modulator found to both reduce sweat chloride concentration and improve pulmonary function in the rare CFTR gating mutations. Combinations of modulators such as lumacaftor + ivacaftor or tezacaftor + ivacaftor were found to improve pulmonary function both in patients homozygous for the F508del mutation characterized by the lack of CFTR protein and those heterozygous for F508del with minimal CFTR activity. The triple combination of ivacaftor + tezacaftor + elexacaftor was recently shown to significantly improve pulmonary function and quality of life, to normalize sweat chloride concentration, and to reduce the need for antibiotic therapy in patients with at least one F508del mutation (83% in France). These impressive data, however, need to be confirmed in the long term. Nevertheless, it is encouraging to hear treated patients testify about their markedly improved quality of life and to observe that the number of lung transplants for cystic fibrosis decreased dramatically in France after 2020, despite the COVID pandemic, with no increase in deaths without lung transplant.
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Affiliation(s)
- P Foucaud
- Vice-Président de l'Association Vaincre la Mucoviscidose, 181 Rue de Tolbiac, Paris 75013, France.
| | - J C Mercier
- Membre de la Commission de Transparence, Haute Autorité de Santé, 5 avenue du Stade de France, Saint Denis 93210, France
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Thangaraju P, Velmurugan H, N K. Current Status of Pharmacokinetic Research in Children: A Systematic Review of Clinical Trial Records. Curr Rev Clin Exp Pharmacol 2022; 19:CRCEP-EPUB-128427. [PMID: 36573054 DOI: 10.2174/2772432818666221223155455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 09/05/2022] [Accepted: 10/18/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND Many medications have different pharmacokinetics in children than in adults. Knowledge about the safety and efficacy of medications in children requires research into the pharmacokinetic profiles of children's medicines. By analysing registered clinical trial records, this study determined how frequently pharmacokinetic data is gathered in paediatric drug trials. METHODS We searched for the pharmacokinetic data from clinical trial records for preterm infants and children up to the age of 16 from January 2011 to April 2022. The records of trials involving one or more drugs in preterm infants and children up to the age of 16 were examined for evidence that pharmacokinetic data would be collected. RESULTS In a total of 1483 records of interventional clinical trials, 136 (9.17%) pharmacokinetic data involved adults. Of those 136 records, 60 (44.1%) records were pharmacokinetics trials involving one or more medicines in children up to the age of 16. 20 (33.3 %) in America, followed by 19 (31.6 %) in Europe. Most trials researched medicines in the field of infection or parasitic diseases 20 (33.3%). 27 (48.2%) and 26 (46.4%) trials investigated medicines that were indicated as essential medicine. CONCLUSION The pharmacokinetic characteristics of children's drugs need to be better understood. The current state of pharmacokinetic research appears to address the knowledge gap in this area adequately. Despite slow progress, paediatric clinical trials have experienced a renaissance as the significance of paediatric trials has gained international attention. The outcome of paediatric trials will have an impact on children's health in the future. In recent years, the need for greater availability and access to safe child-size pharmaceuticals has received a lot of attention.
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Affiliation(s)
- Pugazhenthan Thangaraju
- Department of Pharmacology, All India institute of medical sciences, Raipur, Chhattisgarh, India
| | - Hemasri Velmurugan
- Department of Pharmacology, All India institute of medical sciences, Raipur, Chhattisgarh, India
| | - Krishnapriya N
- Department of Pharmacology, All India institute of medical sciences, Raipur, Chhattisgarh, India
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Organoid Technology and Its Role for Theratyping Applications in Cystic Fibrosis. CHILDREN (BASEL, SWITZERLAND) 2022; 10:children10010004. [PMID: 36670555 PMCID: PMC9856584 DOI: 10.3390/children10010004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Cystic fibrosis (CF) is a autosomal recessive, multisystemic disease caused by different mutations in the CFTR gene encoding CF transmembrane conductance regulator. Although symptom management is important to avoid complications, the approval of CFTR modulator drugs in the clinic has demonstrated significant improvements by targeting the primary molecular defect of CF and thereby preventing problems related to CFTR deficiency or dysfunction. CFTR modulator therapies have positively changed the patients' quality of life, especially for those who start their use at the onset of the disease. Due to early diagnosis with the implementation of newborn screening programs and considerable progress in the treatment options, nowadays pediatric mortality was dramatically reduced. In any case, the main obstacle to treat CF is to predict the drug response of patients due to genetic complexity and heterogeneity. Advances in 3D culture systems have led to the extrapolation of disease modeling and individual drug response in vitro by producing mini organs called "organoids" easily obtained from nasal and rectal mucosa biopsies. In this review, we focus primarily on patient-derived intestinal organoids used as in vitro model for CF disease. Organoids combine high-validity of outcomes with a high throughput, thus enabling CF disease classification, drug development and treatment optimization in a personalized manner.
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Prentice B, Nicholson M, Lam GY. Cystic fibrosis related diabetes (CFRD) in the era of modulators: A scoping review. Paediatr Respir Rev 2022:S1526-0542(22)00086-0. [PMID: 36581478 DOI: 10.1016/j.prrv.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Cystic fibrosis-related diabetes (CFRD) is a common complication of CF that increases in incidence as patients age. Poor glycemic control has been shown to negatively impact lung function and weight, resulting in higher risk of recurrent pulmonary exacerbations. With the advent of highly effective modulator therapies (HEMT), patients with CF are living longer and healthier lives. Consequently, CFRD and its microvascular complications are rising in prominence, becoming one of the most urgent clinical concerns. As HEMT were developed with the primary focus of improving pulmonary outcomes, it is not clear from the original phase III studies what the short- or long-term benefits of modulators might be on CFRD development and trajectory. In this review, we will examine the pathophysiology of CFRD, summarize and synthesize the available evidence of HEMT impact on CFRD and describe the emerging research needs in this field.
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Affiliation(s)
- Bernadette Prentice
- Department of Respiratory Medicine, Sydney Children's Hospital, Randwick Australia; Molecular and Integrative Cystic Fibrosis (miCF) Research Centre, Randwick, Australia; Discipline of Paediatrics and Child Health, School of Clinical Medicine, University of New South Wales, Randwick, Australia
| | - Mike Nicholson
- Division of Respirology, Department of Medicine, Western University, Ontario, Canada
| | - Grace Y Lam
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Alberta, Canada.
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Wilson A, Altman K, Schindler T, Schwarzenberg SJ. Updates in Nutrition Management of Cystic Fibrosis in the Highly Effective Modulator Era. Clin Chest Med 2022; 43:727-742. [PMID: 36344077 DOI: 10.1016/j.ccm.2022.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Attainment and maintenance of good nutrition has been an important aspect of management in cystic fibrosis (CF) for decades. In the era of highly effective modulator therapy for CF, the quality of the nutrients we recommend is increasingly important. Our therapy must support our patients' health for many years beyond what we previously thought. Preventing cardiovascular disease, reducing hyperlipidemia, and optimizing lean body mass for active, longer lives now join the long-standing goal of promoting lung function through nutrition. This chapter summarizes recent developments in nutrition in people with CF, with an eye to the evolution of our practice.
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Affiliation(s)
- Alexandra Wilson
- Cystic Fibrosis Clinical Research, Clinical Research Services, National Jewish Health, 1400 Jackson Street, K333, Denver, CO 80206, USA
| | - Kimberly Altman
- Gunnar Esiason Adult Cystic Fibrosis and Lung Center, Columbia University Medical Center, New York Presbyterian Hospital, New York, NY, USA
| | - Terri Schindler
- Pediatric Pulmonology, University Hospitals Cleveland Medical Center, Rainbow Babies and Children's Hospital
| | - Sarah Jane Schwarzenberg
- Department of Pediatrics; University of Minnesota Masonic Children's Hospital, Academic Office Building, 2450 Riverside Avenue South AO-201, Minneapolis, MN 55454, USA.
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