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Peeters SL, Deenen MJ, Thijs AM, Hulshof EC, Mathijssen RH, Gelderblom H, Guchelaar HJ, Swen JJ. UGT1A1 genotype-guided dosing of irinotecan: time to prioritize patient safety. Pharmacogenomics 2023; 24:435-439. [PMID: 37470120 DOI: 10.2217/pgs-2023-0096] [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] [Indexed: 07/21/2023] Open
Abstract
Tweetable abstract Pretreatment UGT1A1 genotyping and a 70% irinotecan dose intensity in poor metabolizers is safe, feasible, cost-effective and essential for safe irinotecan treatment in cancer patients. It is time to update guidelines to swiftly enable the implementation of UGT1A1 genotype-guided irinotecan dosing in routine oncology care.
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Affiliation(s)
- Sofía Lj Peeters
- Department of Clinical Pharmacy, Catharina Hospital, Michelangelolaan 2, 5623 EJ Eindhoven, The Netherlands
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Maarten J Deenen
- Department of Clinical Pharmacy, Catharina Hospital, Michelangelolaan 2, 5623 EJ Eindhoven, The Netherlands
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Anna Mj Thijs
- Department of Medical Oncology, Catharina Hospital, Michelangelolaan 2, 5623 EJ Eindhoven, The Netherlands
| | - Emma C Hulshof
- Department of Clinical Pharmacy, Catharina Hospital, Michelangelolaan 2, 5623 EJ Eindhoven, The Netherlands
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Ron Hj Mathijssen
- Department of Medical Oncology, Erasmus University Medical Centre, Dr. Molewaterplein 40, 3015 GD Rotterdam, The Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Henk-Jan Guchelaar
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Jesse J Swen
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
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2
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The past, present, and future of chemotherapy with a focus on individualization of drug dosing. J Control Release 2022; 352:840-860. [PMID: 36334860 DOI: 10.1016/j.jconrel.2022.10.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 10/14/2022] [Accepted: 10/24/2022] [Indexed: 11/16/2022]
Abstract
While there have been rapid advances in developing new and more targeted drugs to treat cancer, much less progress has been made in individualizing dosing. Even though the introduction of immunotherapies such as CAR T-cells and checkpoint inhibitors, as well as personalized therapies that target specific mutations, have transformed clinical treatment of cancers, chemotherapy remains a mainstay in oncology. Chemotherapies are typically dosed on either a body surface area (BSA) or weight basis, which fails to account for pharmacokinetic differences between patients. Drug absorption, distribution, metabolism, and excretion rates can vary between patients, resulting in considerable differences in exposure to the active drugs. These differences result in suboptimal dosing, which can reduce efficacy and increase side-effects. Therapeutic drug monitoring (TDM), genotype guided dosing, and chronomodulation have been developed to address this challenge; however, despite improving clinical outcomes, they are rarely implemented in clinical practice for chemotherapies. Thus, there is a need to develop interventions that allow for individualized drug dosing of chemotherapies, which can help maximize the number of patients that reach the most efficacious level of drug in the blood while mitigating the risks of underdosing or overdosing. In this review, we discuss the history of the development of chemotherapies, their mechanisms of action and how they are dosed. We discuss substantial intraindividual and interindividual variability in chemotherapy pharmacokinetics. We then propose potential engineering solutions that could enable individualized dosing of chemotherapies, such as closed-loop drug delivery systems and bioresponsive biomaterials.
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Glewis S, Alexander M, Khabib MNH, Brennan A, Lazarakis S, Martin J, Tie J, Lingaratnam S, Michael M. A systematic review and meta-analysis of toxicity and treatment outcomes with pharmacogenetic-guided dosing compared to standard of care BSA-based fluoropyrimidine dosing. Br J Cancer 2022; 127:126-136. [PMID: 35306539 PMCID: PMC9276780 DOI: 10.1038/s41416-022-01779-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/14/2022] [Accepted: 03/02/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Serious and potentially life-threatening toxicities can occur following 5-fluorouracil/capecitabine exposure. Patients carrying Dihydropyrimidine Dehydrogenase (DPYD) variant alleles associated with decreased enzymatic function are at a greater risk of early/severe 5-fluorouracil/capecitabine toxicity. The objective of this systematic review/meta-analysis was to evaluate treatment outcomes between Pharmacogenetics Guided Dosing (PGD) versus non-PGD and within PGD (DPYD variant allele carriers versus wild type). METHODS A systematic review/meta-analysis of original publications indexed in Ovid Medline, Ovid Embase, and the Cochrane CENTRAL (Wiley) library from inception to 7-Dec-2020. Eligible studies evaluated at least one pre-defined treatment outcome measures (toxicity/hospitalisations/survival/overall response/quality of life). RESULTS Of 1090 identified publications, 17 met predefined eligibility criteria. The meta-analysis observed reduced incidence of grade 3/4 overall toxicity (Risk Ratio [RR] 0.32 [95% Cl 0.27-0.39], p < 0.00001) and grade 3/4 diarrhoea (RR 0.38 [95% Cl 0.24-0.61], p < 0.0001) among PGD versus non-PGD cohorts. Within PGD cohorts, there was no statistical differences for overall response rates (complete/partial) (RR 1.31 [95% Cl 0.93-1.85], p = 0.12). Similar results were found with stable disease (RR 1.27 [95% Cl 0.66-2.44], p = 0.47). CONCLUSION PGD improves patient outcomes in terms of grade 3/4 toxicity, in particular overall toxicity and diarrhoea, without impacting on treatment response. REGISTRATION NUMBER The study is registered with PROSPERO, registration number CRD42020223768.
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Affiliation(s)
- Sarah Glewis
- Department of Pharmacy, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia. .,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia.
| | - Marliese Alexander
- Department of Pharmacy, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Muhammad N H Khabib
- School of Biomedical Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Annabelle Brennan
- School of Biomedical Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Smaro Lazarakis
- Health Sciences Library, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Jennifer Martin
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - Jeanne Tie
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia.,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
| | - Senthil Lingaratnam
- Department of Pharmacy, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Michael Michael
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia.,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
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Personeni N, Giordano L, Michelini A, D’Alessio A, Cammarota A, Bozzarelli S, Pressiani T, Prete MG, Sandri MT, Stioui S, Germagnoli L, Santoro A, Rimassa L, Mineri R. Implementing Pre-Therapeutic UGT1A1 Genotyping in Clinical Practice: A Real-Life Study. J Pers Med 2022; 12:jpm12020204. [PMID: 35207692 PMCID: PMC8875990 DOI: 10.3390/jpm12020204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 02/05/2023] Open
Abstract
Current guidelines recommend pre-therapeutic UGT1A1 genotyping to guide irinotecan dosing, but the usefulness of this approach remains to be clarified. In 247 patients with advanced gastrointestinal cancers undergoing irinotecan-based chemotherapy, we prospectively performed UGT1A1*28 genotyping and we analyzed the incidence of severe neutropenia according to genotype-guided dose reductions. Overall, 28 (11.3%) and 92 (37.2%) patients were homozygous or heterozygous UGT1A1*28 carriers, respectively. Grade ≥ 3 neutropenia was reported in 39% of homozygous patients receiving an upfront dose reduction of irinotecan (median 40%, range 22–58%), in 20% of heterozygous or wild-type patients receiving full dose (ORvs*28/*28 genotype = 0.38; 95% CI: 0.14–1.03; p = 0.058), and in 15.3% of those receiving a reduced dose for clinical reasons (OR vs*28/*28 genotype = 0.28, 95% IC: 0.12–0.67; p = 0.004). Occurrence of severe neutropenia was inversely associated with dose reduction in UGT1A1*28 homozygous carriers (ORx10 unit = 0.62, 95% CI: 0.27–1.40, p = 0.249) and UGT1A1 heterozygous or wild-type patients (ORx10 unit = 0.87, 95% CI: 0.59–1.28, p = 0.478). Incidence of severe neutropenia was related to irinotecan doses and UGT1A1 polymorphisms. Upfront irinotecan dose reductions do not reduce the burden of grade ≥ 3 neutropenia in UGT1A1*28 homozygous carriers.
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Affiliation(s)
- Nicola Personeni
- Department of Biomedical Sciences, Humanitas University, Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (N.P.); (A.M.); (A.D.); (A.C.); (A.S.)
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Laura Giordano
- Biostatistic Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy;
| | - Angelica Michelini
- Department of Biomedical Sciences, Humanitas University, Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (N.P.); (A.M.); (A.D.); (A.C.); (A.S.)
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Antonio D’Alessio
- Department of Biomedical Sciences, Humanitas University, Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (N.P.); (A.M.); (A.D.); (A.C.); (A.S.)
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital, London W12 0HS, UK
| | - Antonella Cammarota
- Department of Biomedical Sciences, Humanitas University, Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (N.P.); (A.M.); (A.D.); (A.C.); (A.S.)
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Silvia Bozzarelli
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Tiziana Pressiani
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Maria Giuseppina Prete
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Maria Teresa Sandri
- Medical Genetics Section, Laboratory Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.S.); (S.S.); (L.G.)
- Bianalisi Laboratory, Via Mattavelli 3, 20841 Carate Brianza, Italy
| | - Sabine Stioui
- Medical Genetics Section, Laboratory Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.S.); (S.S.); (L.G.)
- CDI—Genetic and Cytogenetic Laboratory, Via Saint Bon 20, 20147 Milan, Italy
| | - Luca Germagnoli
- Medical Genetics Section, Laboratory Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.S.); (S.S.); (L.G.)
| | - Armando Santoro
- Department of Biomedical Sciences, Humanitas University, Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (N.P.); (A.M.); (A.D.); (A.C.); (A.S.)
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
| | - Lorenza Rimassa
- Department of Biomedical Sciences, Humanitas University, Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (N.P.); (A.M.); (A.D.); (A.C.); (A.S.)
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (S.B.); (T.P.); (M.G.P.)
- Correspondence: (L.R.); (R.M.); Tel.: +39-02-82244573 (L.R.); +39-02-82244748 (R.M.)
| | - Rossana Mineri
- Medical Genetics Section, Laboratory Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.S.); (S.S.); (L.G.)
- Correspondence: (L.R.); (R.M.); Tel.: +39-02-82244573 (L.R.); +39-02-82244748 (R.M.)
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Hulshof EC, de With M, de Man FM, Creemers GJ, Deiman BALM, Swen JJ, Houterman S, Koolen SLW, Bins S, Thijs AMJ, Laven MMJ, Hövels AM, Luelmo SAC, Houtsma D, Shulman K, McLeod HL, van Schaik RHN, Guchelaar HJ, Mathijssen RHJ, Gelderblom H, Deenen MJ. UGT1A1 genotype-guided dosing of irinotecan: A prospective safety and cost analysis in poor metaboliser patients. Eur J Cancer 2022; 162:148-157. [PMID: 34998046 DOI: 10.1016/j.ejca.2021.12.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/25/2021] [Accepted: 12/05/2021] [Indexed: 12/23/2022]
Abstract
AIM To determine the safety, feasibility, pharmacokinetics, and cost of UGT1A1 genotype-guided dosing of irinotecan. PATIENTS AND METHODS In this prospective, multicentre, non-randomised study, patients intended for treatment with irinotecan were pre-therapeutically genotyped for UGT1A1∗28 and UGT1A1∗93. Homozygous variant carriers (UGT1A1 poor metabolisers; PMs) received an initial 30% dose reduction. The primary endpoint was incidence of febrile neutropenia in the first two cycles of treatment. Toxicity in UGT1A1 PMs was compared to a historical cohort of UGT1A1 PMs treated with full dose therapy, and to UGT1A1 non-PMs treated with full dose therapy in the current study. Secondary endpoints were pharmacokinetics, feasibility, and costs. RESULTS Of the 350 evaluable patients, 31 (8.9%) patients were UGT1A1 PM and received a median 30% dose reduction. The incidence of febrile neutropenia in this group was 6.5% compared to 24% in historical UGT1A1 PMs (P = 0.04) and was comparable to the incidence in UGT1A1 non-PMs treated with full dose therapy. Systemic exposure of SN-38 of reduced dosing in UGT1A1 PMs was still slightly higher compared to a standard-dosed irinotecan patient cohort (difference: +32%). Cost analysis showed that genotype-guided dosing was cost-saving with a cost reduction of €183 per patient. CONCLUSION UGT1A1 genotype-guided dosing significantly reduces the incidence of febrile neutropenia in UGT1A1 PM patients treated with irinotecan, results in a therapeutically effective systemic drug exposure, and is cost-saving. Therefore, UGT1A1 genotype-guided dosing of irinotecan should be considered standard of care in order to improve individual patient safety.
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Affiliation(s)
- Emma C Hulshof
- Department of Clinical Pharmacy, Catharina Hospital, Eindhoven, the Netherlands; Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Mirjam de With
- Department of Medical Oncology, Erasmus University Medical Centre, Rotterdam, the Netherlands; Department of Clinical Chemistry, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Femke M de Man
- Department of Medical Oncology, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Geert-Jan Creemers
- Department of Medical Oncology, Catharina Hospital, Eindhoven, the Netherlands
| | - Birgit A L M Deiman
- Department of Molecular Biology, Catharina Hospital, Eindhoven, the Netherlands
| | - Jesse J Swen
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Saskia Houterman
- Department of Education and Research, Catharina Hospital, Eindhoven, the Netherlands
| | - Stijn L W Koolen
- Department of Medical Oncology, Erasmus University Medical Centre, Rotterdam, the Netherlands; Department of Hospital Pharmacy, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Sander Bins
- Department of Medical Oncology, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Anna M J Thijs
- Department of Medical Oncology, Catharina Hospital, Eindhoven, the Netherlands
| | - Marjan M J Laven
- Department of Medical Oncology, Catharina Hospital, Eindhoven, the Netherlands
| | - Anke M Hövels
- Hovels Consultancy HTA and Health Economics, Bilthoven, the Netherlands
| | - Saskia A C Luelmo
- Department of Medical Oncology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Danny Houtsma
- Department of Medical Oncology, Haga Hospital, The Hague, the Netherlands
| | - Katerina Shulman
- Department of Medical Oncology, Carmel Medical Centre and Clalit Haifa District Regional Oncology Clinics, Haifa, Israel
| | - Howard L McLeod
- University of South Florida Taneja College of Pharmacy, Tampa, FL, USA
| | - Ron H N van Schaik
- Department of Clinical Chemistry, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Henk-Jan Guchelaar
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Maarten J Deenen
- Department of Clinical Pharmacy, Catharina Hospital, Eindhoven, the Netherlands; Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Leiden, the Netherlands.
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Wang L, Howlett S, Essapen S. Treating patients with dihydropyrimidine dehydrogenase (DPD) deficiency with fluoropyrimidine chemotherapy since the onset of routine prospective testing-The experience of a large oncology center in the United Kingdom. Semin Oncol 2021; 49:170-177. [PMID: 35027218 DOI: 10.1053/j.seminoncol.2021.11.004] [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: 05/27/2021] [Revised: 11/20/2021] [Accepted: 11/24/2021] [Indexed: 11/11/2022]
Abstract
BACKGROUND Fluoropyrimidine chemotherapy is used across many tumor types and settings. The incidence of severe adverse events (SAEs) is around 20%. Mortality is 0.5%-1%. Dihydropyrimidine dehydrogenase (DPD) plays a key role in fluoropyrimidine inactivation. Key DPYD mutations are linked to a high risk of SAEs. Pretreatment DPD screening was mandated by EMA guidelines in April 2020 and widely adopted thereafter. Uncertainty remains regarding optimal dosing practice. METHODS We retrospectively examined records of all 23 patients with DPYD mutation who started chemotherapy between April and November 2020. Our center tests for the mutations considered clinically actionable by Clinical Pharmacogenetics Implementation Consortium and uses the Gene Activity Score (GAS) to guide dose reduction. RESULTS Most patients started on a 50% dose. One started on 100% and experienced mild diarrhea after cycle 2; DPD was tested belatedly, subsequent cycles were reduced to 50% and he remained well. Three patients receiving chemo-radiotherapy started on 76% dose; 50% was felt to be subtherapeutic. One of them had no toxicities; another had grade 2 nausea and a hospital attendance with non-neutropenic fever; the third was admitted for 6 weeks with pancolitis. Seven patients did not have toxicities above grade 1 and no hospital attendances. Five patients had further dose reductions. None had dose escalation. CONCLUSION As our experience shows, patients with DPD deficiency are heterogeneous. Worryingly, SAEs occur despite dose reduction according to GAS. Others had minimal toxicity and may be under-dosed by GAS. There are clearly many factors at play other than the 4 DPYD variants. The DPD result must be available and inform first cycle dosing. Dose should be cautiously titrated up if tolerated; this was not done at our center due to clinician caution. Further research is needed to guide this. Patients should be reviewed frequently, counselled regarding their DPD status, and empowered to seek advice promptly when they feel unwell.
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Affiliation(s)
- Lei Wang
- Royal Surrey County Hospital, Guildford, Surrey, United Kingdom.
| | - Sarah Howlett
- Royal Surrey County Hospital, Guildford, Surrey, United Kingdom
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Hulshof EC, Deenen MJ, Guchelaar HJ, Gelderblom H. Pre-therapeutic UGT1A1 genotyping to reduce the risk of irinotecan-induced severe toxicity: Ready for prime time. Eur J Cancer 2020; 141:9-20. [PMID: 33125947 DOI: 10.1016/j.ejca.2020.09.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Pre-therapeutic UGT1A1 genotyping is not yet routinely performed in most hospitals in patients starting irinotecan chemotherapy. The aim of this position paper was to evaluate the available evidence and to assess the potential value of genotyping of UGT1A1∗28 and UGT1A1*6 in patients before starting treatment with irinotecan to reduce the risk of severe toxicity. METHODS The literature was selected and assessed based on five pre-specified criteria: 1) the level of evidence for associations between UGT1A1 polymorphisms and irinotecan-induced severe toxicity, 2) clinical validity and utility of pre-therapeutic genotyping of UGT1A1, 3) safety and tolerability of irinotecan in carriers of UGT1A1 polymorphisms, 4) availability of specific dose recommendations for irinotecan in carriers of UGT1A1 polymorphisms, 5) evidence of cost benefits of pre-therapeutic genotyping of UGT1A1. RESULTS On all five criteria, study results were favourable for pre-therapeutic genotyping of UGT1A1. A high level of evidence (level I) was found for a higher incidence of irinotecan-induced severe toxicity in homozygous carriers of UGT1A1*28 or UGT1A1*6. The clinical validity and utility of this genetic test proved to be acceptable. Dose-finding studies showed a lower maximum tolerated dose in homozygous variant allele carriers, and most of the drug labels and guidelines recommend a dose reduction of 25-30% in these patients. In addition, pre-therapeutic genotyping of UGT1A1 is likely to save costs. CONCLUSION Pre-therapeutic genotyping of UGT1A1 in patients initiating treatment with irinotecan improves patient safety, is likely to be cost-saving, and should, therefore, become standard of care.
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Affiliation(s)
- Emma C Hulshof
- Department of Clinical Pharmacy, Catharina Hospital, Eindhoven, the Netherlands; Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands
| | - Maarten J Deenen
- Department of Clinical Pharmacy, Catharina Hospital, Eindhoven, the Netherlands; Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands
| | - Henk-Jan Guchelaar
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands; Leiden Network of Personalized Therapeutics, the Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands.
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8
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Conti V, De Bellis E, Manzo V, Sabbatino F, Iannello F, Dal Piaz F, Izzo V, Charlier B, Stefanelli B, Torsiello M, Iannaccone T, Coglianese A, Colucci F, Pepe S, Filippelli A. A Genotyping/Phenotyping Approach with Careful Clinical Monitoring to Manage the Fluoropyrimidines-Based Therapy: Clinical Cases and Systematic Review of the Literature. J Pers Med 2020; 10:jpm10030113. [PMID: 32899374 PMCID: PMC7564232 DOI: 10.3390/jpm10030113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/26/2020] [Accepted: 09/01/2020] [Indexed: 12/27/2022] Open
Abstract
Fluoropyrimidines (FP) are mainly metabolised by dihydropyrimidine dehydrogenase (DPD), encoded by the DPYD gene. FP pharmacogenetics, including four DPYD polymorphisms (DPYD-PGx), is recommended to tailor the FP-based chemotherapy. These polymorphisms increase the risk of severe toxicity; thus, the DPYD-PGx should be performed prior to starting FP. Other factors influence FP safety, therefore phenotyping methods, such as the measurement of 5-fluorouracil (5-FU) clearance and DPD activity, could complement the DPYD-PGx. We describe a case series of patients in whom we performed DPYD-PGx (by real-time PCR), 5-FU clearance and a dihydrouracil/uracil ratio (as the phenotyping analysis) and a continuous clinical monitoring. Patients who had already experienced severe toxicity were then identified as carriers of DPYD variants. The plasmatic dihydrouracil/uracil ratio (by high-performance liquid chromatography (HPLC)) ranged between 1.77 and 7.38. 5-FU clearance (by ultra-HPLC with tandem mass spectrometry) was measured in 3/11 patients. In one of them, it reduced after the 5-FU dosage was halved; in the other case, it remained high despite a drastic dosage reduction. Moreover, we performed a systematic review on genotyping/phenotyping combinations used as predictive factors of FP safety. Measuring the plasmatic 5-FU clearance and/or dihydrouracil/uracil (UH2/U) ratio could improve the predictive potential of DPYD-PGx. The upfront DPYD-PGx combined with clinical monitoring and feasible phenotyping method is essential to optimising FP-based chemotherapy.
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Affiliation(s)
- Valeria Conti
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Clinical Pharmacology and Pharmacogenetics Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Emanuela De Bellis
- Postgraduate School in Clinical Pharmacology and Toxicology, University of Salerno, 84081 Baronissi, Italy; (E.D.B.); (B.S.); (M.T.); (F.C.)
| | - Valentina Manzo
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Clinical Pharmacology and Pharmacogenetics Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
- Postgraduate School in Clinical Pharmacology and Toxicology, University of Salerno, 84081 Baronissi, Italy; (E.D.B.); (B.S.); (M.T.); (F.C.)
- Correspondence: ; Tel.: +39-089-672-424
| | - Francesco Sabbatino
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Oncology Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Francesco Iannello
- Postgraduate School in Clinical Pharmacology and Toxicology, University of Campania “L. Vanvitelli”, 80138 Naples, Italy;
| | - Fabrizio Dal Piaz
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Clinical Pharmacology and Pharmacogenetics Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Viviana Izzo
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Clinical Pharmacology and Pharmacogenetics Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Bruno Charlier
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Clinical Pharmacology and Pharmacogenetics Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Berenice Stefanelli
- Postgraduate School in Clinical Pharmacology and Toxicology, University of Salerno, 84081 Baronissi, Italy; (E.D.B.); (B.S.); (M.T.); (F.C.)
| | - Martina Torsiello
- Postgraduate School in Clinical Pharmacology and Toxicology, University of Salerno, 84081 Baronissi, Italy; (E.D.B.); (B.S.); (M.T.); (F.C.)
| | - Teresa Iannaccone
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
| | - Albino Coglianese
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
| | - Francesca Colucci
- Postgraduate School in Clinical Pharmacology and Toxicology, University of Salerno, 84081 Baronissi, Italy; (E.D.B.); (B.S.); (M.T.); (F.C.)
| | - Stefano Pepe
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Oncology Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Amelia Filippelli
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (V.C.); (F.S.); (F.D.P.); (V.I.); (B.C.); (T.I.); (A.C.); (S.P.); (A.F.)
- Clinical Pharmacology and Pharmacogenetics Unit, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
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9
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Ferrer F, Fanciullino R, Milano G, Ciccolini J. Towards Rational Cancer Therapeutics: Optimizing Dosing, Delivery, Scheduling, and Combinations. Clin Pharmacol Ther 2020; 108:458-470. [PMID: 32557660 DOI: 10.1002/cpt.1954] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/30/2020] [Indexed: 12/16/2022]
Abstract
The current trend to personalize anticancer therapies mostly relies on selecting the best drug or combination of drugs to achieve optimal efficacy in patients. In addition to the comprehensive genetic and molecular knowledge of each tumor before choosing the drugs to be given, there is probably much room left for improvement by further personalizing the very modes by which the drugs are given, once they have been carefully selected. In particular, shifting from standard dosing to tailored dosing should help in maintaining drug exposure levels in the right therapeutic window, thus ensuring that the efficacy/toxicity balance is optimal. This paper covers the current knowledge regarding pharmacokinetic/pharmacodynamic relationships of anticancer agents, from decades-old cytotoxics to the latest immune checkpoint inhibitors, the most frequent sources for long-neglected interpatient variability impacting on drug exposure levels, and what could be done to achieve real personalized medicine in oncology such as implementing therapeutic drug monitoring with adaptive dosing strategies or using model-driven modalities for personalized dosing and scheduling.
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Affiliation(s)
- Florent Ferrer
- SMARTc Unit, CRCM Inserm U1068, Aix Marseille Univ and APHM, Marseille, France
| | | | - Gérard Milano
- Onco-Pharmacology Unit, Centre Antoine Lacassagne, Nice, France
| | - Joseph Ciccolini
- SMARTc Unit, CRCM Inserm U1068, Aix Marseille Univ and APHM, Marseille, France
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10
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Yang Y, Zhou M, Hu M, Cui Y, Zhong Q, Liang L, Huang F. UGT1A1*6 and UGT1A1*28 polymorphisms are correlated with irinotecan-induced toxicity: A meta-analysis. Asia Pac J Clin Oncol 2018; 14:e479-e489. [DOI: 10.1111/ajco.13028] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 05/20/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Yuwei Yang
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
| | - MengMeng Zhou
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
| | - Mingjun Hu
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
| | - Yanjie Cui
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
| | - Qi Zhong
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
| | - Ling Liang
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
| | - Fen Huang
- Department of Epidemiology and Biostatistics; School of Public Health; Anhui Medical University; Hefei China
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11
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Pasternak AL, Ward KM, Luzum JA, Ellingrod VL, Hertz DL. Germline genetic variants with implications for disease risk and therapeutic outcomes. Physiol Genomics 2017; 49:567-581. [PMID: 28887371 PMCID: PMC5668651 DOI: 10.1152/physiolgenomics.00035.2017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Genetic testing has multiple clinical applications including disease risk assessment, diagnosis, and pharmacogenomics. Pharmacogenomics can be utilized to predict whether a pharmacologic therapy will be effective or to identify patients at risk for treatment-related toxicity. Although genetic tests are typically ordered for a distinct clinical purpose, the genetic variants that are found may have additional implications for either disease or pharmacology. This review will address multiple examples of germline genetic variants that are informative for both disease and pharmacogenomics. The discussed relationships are diverse. Some of the agents are targeted for the disease-causing genetic variant, while others, although not targeted therapies, have implications for the disease they are used to treat. It is also possible that the disease implications of a genetic variant are unrelated to the pharmacogenomic implications. Some of these examples are considered clinically actionable pharmacogenes, with evidence-based, pharmacologic treatment recommendations, while others are still investigative as areas for additional research. It is important that clinicians are aware of both the disease and pharmacogenomic associations of these germline genetic variants to ensure patients are receiving comprehensive personalized care.
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Affiliation(s)
- Amy L Pasternak
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan
| | - Kristen M Ward
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan
| | - Jasmine A Luzum
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan
| | - Vicki L Ellingrod
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan
| | - Daniel L Hertz
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan
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