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Di Cosimo S, Pérez-García JM, Bellet M, Dalenc F, Gil Gil MJ, Ruiz-Borrego M, Gavilá J, Aguirre E, Schmid P, Marmé F, Gligorov J, Schneeweiss A, Albanell J, Zamora P, Wheatley D, Martínez de Dueñas E, Amillano K, Shimizu E, Sampayo-Cordero M, Cortés J, Llombart-Cussac A. Impact of coadministration of proton-pump inhibitors and palbociclib in hormone receptor-positive/HER2-negative advanced breast cancer. Breast 2024; 76:103761. [PMID: 38880077 PMCID: PMC11228587 DOI: 10.1016/j.breast.2024.103761] [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: 03/28/2024] [Revised: 05/28/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024] Open
Abstract
BACKGROUND The capsule formulation of CDK4/6 inhibitor palbociclib has reduced solubility at gastric pH > 4.5 and may have decreased activity when used with proton-pump inhibitors (PPI). Herein, we report the effect of PPI on palbociclib capsule activity and safety in the PARSIFAL study. METHODS First-line endocrine-sensitive, hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC) patients received palbociclib capsules plus fulvestrant or letrozole. The primary endpoint was progression-free survival (PFS). This post-hoc analysis compared PPI use. Patients were PPI-naïve (N-PPI) if not on PPI during the study, and either early (E-PPI) or long-term PPI (LT-PPI) if on PPI at study entry or for at least ≥⅔ of treatment, respectively. PPI groups were not mutually exclusive. RESULTS Among 486 patients, 66.9 % were N-PPI, 13.2 % E-PPI, 18.7 % LT-PPI, and 11.5 % of the PPI users were defined as neither. Median PFS (mPFS) was 29.6 months in the study population, 28.7 months in N-PPI, 23.0 months in E-PPI (Hazard Ratio [HR] 1.5; 95%Confidence Interval [CI] 1.1-2.2; p = 0.024), and 23.0 months in LT-PPI (HR 1.4; 95%CI 1.0-1.9; p = 0.035). By landmark analysis, PPI use was associated with poorer mPFS at 3 and 12 months. Grade ≥3 hematological adverse events occurred in 71.7 % of N-PPI, 57.8 % of E-PPI (p = 0.021), and 54.9 % of LT-PPI (p = 0.003). Dose reductions and dosing delays due to hematological toxicity occurred in 70.8 % of N-PPI, 56.3 % of E-PPI (p = 0.018), and 52.7 % of LT-PPI (p = 0.002). CONCLUSIONS PPI use may reduce palbociclib capsule toxicity, dose modifications, and clinical activity in HR+/HER2- ABC.
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Affiliation(s)
- Serena Di Cosimo
- Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy; Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States
| | - José Manuel Pérez-García
- Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States; International Breast Cancer Center (IBCC), Pangaea Oncology, Quirón Group, Barcelona, Spain
| | - Meritxell Bellet
- Vall d'Hebrón University Hospital, Medical Oncology Department, Spain; Vall d'Hebrón Institute of Oncology (VHIO), Barcelona, Spain
| | - Florence Dalenc
- Oncopole Claudius Regaud-IUCT, CRCT, Inserm, Department of Medical Oncology, Toulouse, France
| | - Miguel J Gil Gil
- Institut Català d'Oncologia, Breast Cancer Unit and Medical Oncology Department, IDIBELL, L'Hospitalet, Barcelona, Spain
| | - Manuel Ruiz-Borrego
- Hospital Universitario Virgen del Rocío, Medical Oncology Department, Seville, Spain
| | - Joaquín Gavilá
- Fundación Instituto Valenciano de Oncología, Medical Oncology Department, Valencia, Spain
| | - Elena Aguirre
- Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States
| | - Peter Schmid
- Barts ECMC, Barts Cancer Institute, Queen Mary University of London, Barts Hospital NHS Trust, London, United Kingdom
| | - Frederik Marmé
- University Hospital Mannheim, Germany; Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Joseph Gligorov
- Institut Universitaire de Cancérologie, AP-HP Sorbonne Université, Paris, France
| | - Andreas Schneeweiss
- National Center for Tumor Diseases (NCT), Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany
| | - Joan Albanell
- Hospital del Mar, Medical Oncology, Barcelona, Spain
| | - Pilar Zamora
- Hospital Universitario La Paz, Medical Oncology Department, Madrid, Spain
| | | | | | - Kepa Amillano
- Hospital Universitari Sant Joan de Reus, Reus, Spain
| | - Eileen Shimizu
- Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States
| | - Miguel Sampayo-Cordero
- Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States
| | - Javier Cortés
- Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States; International Breast Cancer Center (IBCC), Pangaea Oncology, Quirón Group, Barcelona, Spain; Universidad Europea de Madrid, Faculty of Biomedical and Health Sciences, Department of Medicine, Madrid, Spain
| | - Antonio Llombart-Cussac
- Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain and Ridgewood, NJ, United States; Hospital Arnau de Vilanova, Valencia, Spain; Universidad Católica de Valencia, Valencia, Spain.
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Santamaria F, Roberto M, Buccilli D, Di Civita MA, Giancontieri P, Maltese G, Nicolella F, Torchia A, Scagnoli S, Pisegna S, Barchiesi G, Speranza I, Botticelli A, Santini D. Clinical implications of the Drug-Drug Interaction in Cancer Patients treated with innovative oncological treatments. Crit Rev Oncol Hematol 2024; 200:104405. [PMID: 38838928 DOI: 10.1016/j.critrevonc.2024.104405] [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: 03/05/2024] [Revised: 05/17/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024] Open
Abstract
In the last two-decades, innovative drugs have revolutionized cancer treatments, demonstrating a significant improvement in overall survival. These drugs may present several pharmacokinetics interactions with non-oncological drugs, and vice versa, and, non-oncological drugs can modify oncological treatment outcome both with pharmacokinetic interaction and with an "off-target impact" on the tumor microenvironment or on the peripheral immune response. It's supposed that the presence of a drug-drug interaction (DDI) is associated with an increased risk of reduced anti-tumor effects or severe toxicities. However, clinical evidence that correlate the DDI presence with outcome are few, and results are difficult to compare because of difference in data collection and heterogeneous population. This review reports all the clinical evidence about DDI to provide an easy-to-use guide for DDI management and dose adjustment in solid tumors treated with inhibitors of the cyclin-dependent kinases CDK4-6, Antibody-drug conjugates, Poly ADPribose polymerase inhibitors, androgen-receptor targeted agents, or immunecheckpoints inhibitors.
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Affiliation(s)
- Fiorenza Santamaria
- Department of Experimental Medicine, Sapienza University of Rome, Italy; Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy
| | - Michela Roberto
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy.
| | - Dorelsa Buccilli
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Radiological, Oncological and Pathological Anatomy Sciences, Sapienza University of Rome, Italy
| | - Mattia Alberto Di Civita
- Department of Experimental Medicine, Sapienza University of Rome, Italy; Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Radiological, Oncological and Pathological Anatomy Sciences, Sapienza University of Rome, Italy
| | - Paola Giancontieri
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Radiological, Oncological and Pathological Anatomy Sciences, Sapienza University of Rome, Italy
| | - Giulia Maltese
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Radiological, Oncological and Pathological Anatomy Sciences, Sapienza University of Rome, Italy
| | - Francesco Nicolella
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Radiological, Oncological and Pathological Anatomy Sciences, Sapienza University of Rome, Italy
| | - Andrea Torchia
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Clinical and Molecular Medicine, Sapienza University of Rome, Italy
| | - Simone Scagnoli
- Department of Experimental Medicine, Sapienza University of Rome, Italy; Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy
| | - Simona Pisegna
- Department of Experimental Medicine, Sapienza University of Rome, Italy; Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy
| | - Giacomo Barchiesi
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy
| | - Iolanda Speranza
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy
| | - Andrea Botticelli
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Radiological, Oncological and Pathological Anatomy Sciences, Sapienza University of Rome, Italy
| | - Daniele Santini
- Medical Oncology A, Department of Hematology, Oncology and Dermatology, AOU Policlinico Umberto I, Italy; Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Italy
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Raoul JL, Hansten PD. Proton pump inhibitors and cancer treatments: Emerging evidence against coadministration. Cancer Treat Rev 2024; 129:102794. [PMID: 38968741 DOI: 10.1016/j.ctrv.2024.102794] [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: 05/15/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND Proton pump inhibitors (PPIs) are widely used in cancer patients despite accumulating data showing that they can impact the efficacy of major anticancer drugs. This is particularly important with tyrosine kinase inhibitors (TKIs) and immune checkpoint inhibitors (CPIs). RESULTS Most TKIs require gastric acidity for their absorption and some retrospective series demonstrated that coprescription decreases the survival benefit of some TKI use (erlotinib, gefitinib and pazopanib). Relations between microbiota, the immune system, and the efficacy of immunotherapy are now obvious, just as modifications to gut flora after PPIs use are well-known. Many retrospective articles, including articles based on individual-participant data from randomized studies, demonstrated that patients treated with CPIs have a poorer outcome (overall survival, progression-free survival and response rate) when they received PPIs concomitantly, while there was no impact of such coprescription among patients in control arms, not treated with immunotherapies. Similar data were also observed in patients treated with palbociclib. CONCLUSION For these interactions, it is very important to use the precautionary principle and warn patients and physicians about this. In patients who require acid suppression because of severe symptoms, using antacids or H2 blockers could be recommended.
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Affiliation(s)
- Jean-Luc Raoul
- Department of Clinical Research, Institut de Cancérologie de l'Ouest, Saint-Herblain, France.
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Blaesi AH, Saka N. Gastroretentive fibrous dosage forms for prolonged delivery of sparingly-soluble tyrosine kinase inhibitors. Part 1: Dosage form design, and models of expansion, post-expansion mechanical strength, and drug release. Int J Pharm 2024:124360. [PMID: 38909925 DOI: 10.1016/j.ijpharm.2024.124360] [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: 04/08/2024] [Revised: 05/15/2024] [Accepted: 06/16/2024] [Indexed: 06/25/2024]
Abstract
At present, the efficacy and safety of many sparingly-soluble tyrosine kinase inhibitors (TKIs) delivered by the prevalent oral dosage forms are compromised by excessive fluctuations in the drug concentration in blood. To mitigate this limitation, in this four-part study gastroretentive fibrous dosage forms that deliver drug into the gastric fluid (and into the blood) at a controlled rate for prolonged time are presented. The dosage form comprises a cross-ply structure of expandable, water-absorbing, high-molecular-weight hydroxypropyl methylcellulose (HPMC)-based fibers coated with a strengthening, enteric excipient. The intervening spaces between the coated fibers are solid annuli of drug particles, and low-molecular-weight HPMC and enteric excipients. The central regions of the annuli are open channels. In this part, models are developed for dosage form expansion, post-expansion mechanical strength, and drug release. The models suggest that upon immersing in a dissolution fluid, the fluid percolates the open channels, diffuses into the annuli and the coated fibers, and the dosage form expands. The expansion rate is inversely proportional, and the post-expansion mechanical strength proportional to the thickness of the strengthening coating. Drug particles are released from the annuli as the surrounding excipient dissolves. The drug release rate is proportional to the concentration of low-molecular-weight HPMC at the annulus/dissolution fluid interface. The dosage forms can be readily designed for expansion in a few hours, formation of a high-strength viscoelastic mass, and drug release at a constant rate over a day.
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Affiliation(s)
- Aron H Blaesi
- Enzian Pharmaceutics Blaesi AG, CH-7078 Lenzerheide, Switzerland; Enzian Pharmaceutics, Inc., Cambridge, MA 02139, USA.
| | - Nannaji Saka
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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de Moraes FCA, Pereira CRM, Sano VKT, Laia EAD, Stecca C, Burbano RMR. Do proton pump inhibitors affect the effectiveness of cyclin-dependent kinase 4/6 inhibitors in advanced HR positive, HER2 negative breast cancer? A meta-analysis. Front Pharmacol 2024; 15:1352224. [PMID: 38769999 PMCID: PMC11102992 DOI: 10.3389/fphar.2024.1352224] [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: 12/07/2023] [Accepted: 04/15/2024] [Indexed: 05/22/2024] Open
Abstract
Background The CDK 4/6 inhibitors, including palbociclib and ribociclib, are the standard first-line treatment for hormone receptor-positive (HR+) and human epidermal growth factor receptor 2-negative (HER2-) metastatic breast cancer. Proton pump inhibitors are one of the most globally prescribed types of medications as part of the treatment for gastroesophageal reflux and heartburn complaints. Medication interactions have been demonstrated, leading to a decrease in the effectiveness of chemotherapy drugs such as capecitabine and pazopanib. However, their role and interaction with targeted therapies such as CDK inhibitors are still poorly understood. Methods We searched PubMed, Embase and Web of Science databases for studies that investigated the use of PPI with CDK 4/6 inhibitors versus CDK4/6 alone for advanced or metastatic breast cancer. We systematically searched for the currently available CDK inhibitors: palbociclib, ribociclib and abemaciclib. We computed hazard ratios (HRs), with 95% confidence intervals (CIs). We used DerSimonian and Laird random-effect models for all endpoints. Heterogeneity was assessed using I2 statistics. R, version 4.2.3, was used for statistical analyses. Results A total of 2,737 patients with advanced breast cancer in 9 studies were included, with six studies described the status menopausal as 217 (7.9%) pre-menopause and 1851 (67.6%) post-menopause, for endocrine sensitivity only five studies described1489 (54.4%) patients were endocrine-sensitive and 498 (182%) endocrine-resistent, 910 (33.2%) patients used PPIs. The overall Progression-Free Survival was in favor of the PPI non-users (HR 2.0901; 95% CI 1.410-2.9498; p < 0.001). As well as the subgroup taking palbociclib, revealing statistical relevance for the PPI non-users (HR 2.2539; 95% CI 1.3213-3.8446; p = 0.003) and ribociclib subgroup with a slight decrease in hazard ratio (HR 1.74 95% CI 1.02-2.97; p = 0.04; I2 = 40%). In the multivariate analysis, there was no statistical signifance with ECOG (HR 0.9081; 95% CI 0.4978-16566; p 0.753) and Age (HR 1.2772; 95% CI 0.8790-1.8559; p = 0.199). Either, the univariate analysis did not show statistical significance. Conclusion Women with HR+ and HER2-advanced metastatic breast undergoing treatment with targeted therapies, specifically CDK 4/6 inhibitors, should be monitored for the use of proton pump inhibitors. Therefore, the use of PPIs should be discussed, weighing the advantages and disadvantages for specific cases. It should be individualized based on the necessity in clinical practice for these cases. Systematic Review Registration identifier CRD42023484755.
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Affiliation(s)
| | - Caroline R. M. Pereira
- Department of Medicine, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | | | | | - Carlos Stecca
- Mackenzie Evangelical University Hospital, Curitiba, Paraná, Brazil
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Wu D, Liu J, Paragas EM, Yadav J, Aliwarga T, Heimbach T, Escotet-Espinoza MS. Assessing and mitigating pH-mediated DDI risks in drug development - formulation approaches and clinical considerations. Drug Metab Rev 2024:1-20. [PMID: 38700278 DOI: 10.1080/03602532.2024.2345632] [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: 11/28/2023] [Accepted: 04/10/2024] [Indexed: 05/05/2024]
Abstract
pH-mediated drug-drug interactions (DDI) is a prevalent DDI in drug development, especially for weak base compounds with highly pH-dependent solubility. FDA has released a guidance on the evaluation of pH-mediated DDI assessments using in vitro testing and clinical studies. Currently, there is no common practice of ways of testing across the academia and industry. The development of biopredictive method and physiologically-based biopharmaceutics modeling (PBBM) approaches to assess acid-reducing agent (ARA)-DDI have been proven with accurate prediction and could decrease drug development burden, inform clinical design and potentially waive clinical studies. Formulation strategies and careful clinical design could help mitigate the pH-mediated DDI to avoid more clinical studies and label restrictions, ultimately benefiting the patient. In this review paper, a detailed introduction on biorelevant dissolution testing, preclinical and clinical study requirement and PBPK modeling approaches to assess ARA-DDI are described. An improved decision tree for pH-mediated DDI is proposed. Potential mitigations including clinical or formulation strategies are discussed.
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Affiliation(s)
- Di Wu
- Pharmaceutical Sciences & Clinical Supply, Merck & Co., Inc, Rahway, NJ, USA
| | - Jiaying Liu
- Pharmaceutical Sciences & Clinical Supply, Merck & Co., Inc, Rahway, NJ, USA
| | - Erickson M Paragas
- Pharmacokinetics and Drug Metabolism Department, Amgen Research, South San Francisco, CA, USA
| | - Jaydeep Yadav
- Pharmacokinetics, Pharmacodynamics, and Drug Metabolism, Merck & Co., Inc, Boston, MA, USA
| | - Theresa Aliwarga
- Pharmacokinetics and Drug Metabolism Department, Amgen Research, South San Francisco, CA, USA
| | - Tycho Heimbach
- Pharmaceutical Sciences & Clinical Supply, Merck & Co., Inc, Rahway, NJ, USA
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Kulkarni A, Singh J. Predicting drug-drug interactions in breast cancer patients treated with CDK4/6 inhibitors and forward planning. Expert Opin Drug Metab Toxicol 2024; 20:225-233. [PMID: 38600865 DOI: 10.1080/17425255.2024.2341810] [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: 02/07/2024] [Accepted: 04/05/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION Cyclin-dependent kinase (CDK) 4/6 inhibitors are cornerstones in the treatment of Hormone Receptor (HR) positive and Human Epidermal Growth factor (HER2) negative metastatic breast cancer. Given their widespread use in the metastatic setting and emerging use in the adjuvant setting, studying drug-drug interactions (DDI) of these medications is of utmost importance. AREAS COVERED This review provides key background information on the CDK4/6 inhibitors, palbociclib, ribociclib, and abemaciclib. We discuss drug-drug interactions including those with proton pump inhibitors as well as CYP3A substrates, inhibitors, and inducers. We describe the effect of these drugs on membrane transporters and their substrates as well as those drugs that increase risk of CDK4/6 toxicities. Finally, we explore future directions for strategies to minimize drug-drug interactions. EXPERT OPINION It is crucial to be mindful of medications that may interfere with drug absorption, such as proton pump inhibitors, as well as those that interfere with drug metabolism, such as CYP3A4 inhibitors and inducers. Additionally, special consideration should be given to populations at higher risk for polypharmacy, such as older patients with greater comorbidities. These interactions and patient characteristics should be considered when developing individual treatment plans with CDK4/6 inhibitors.
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Affiliation(s)
- Abha Kulkarni
- Department of Medicine, New York Presbyterian Weill Cornell, New York, NY USA
| | - Jasmeet Singh
- Department of Breast Medicine, Memorial Sloan Kettering Cancer Center, West Harrison, NY USA
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Blaesi AH, Saka N. WITHDRAWN: Gastroretentive fibrous dosage forms for prolonged delivery of sparingly-soluble tyrosine kinase inhibitors. Part 1: Dosage form design, and models of expansion, post-expansion mechanical strength, and drug release. Int J Pharm 2024; 653:123428. [PMID: 37806505 DOI: 10.1016/j.ijpharm.2023.123428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 09/10/2023] [Accepted: 09/17/2023] [Indexed: 10/10/2023]
Affiliation(s)
- Aron H Blaesi
- Enzian Pharmaceutics Blaesi AG, CH-7078, Lenzerheide, Switzerland; Enzian Pharmaceutics, Inc., Cambridge, MA 02139, USA.
| | - Nannaji Saka
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Järvinen J, Montaser AB, Adla SK, Leppänen J, Lehtonen M, Vellonen KS, Laitinen T, Jalkanen A, Elmquist WF, Timonen J, Huttunen KM, Rautio J. Altering distribution profile of palbociclib by its prodrugs. Eur J Pharm Sci 2024; 192:106637. [PMID: 37967656 DOI: 10.1016/j.ejps.2023.106637] [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: 06/26/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 11/17/2023]
Abstract
Palbociclib, a cyclin-dependent kinase (CDK) 4/6 inhibitor, is currently used clinically for treating hormone receptor-positive and human epidermal growth factor receptor 2 negative breast cancer. Additionally, it has the potential to be utilized in the treatment of various tumors, including malignant glioblastoma. Previous research has indicated that palbociclib is a substrate for two efflux transporters, P-glycoprotein (P-gp; MDR1) and breast cancer-resistant protein (BCRP), which restrict the brain exposure of palbociclib. In the present study, our objective was to alter the brain distribution pattern of palbociclib by creating and assessing two novel prodrugs through in vitro, in situ, and in vivo evaluations. To this end, we synthesized two prodrugs of palbociclib by attaching it to the tyrosine promoiety at the para- (PD1) and meta-(PD2) position via a carbamate bond. We hypothesized that the prodrugs could bypass efflux transporter-mediated drug resistance by leveraging the l-type amino acid transporter (LAT1) to facilitate their transport across the blood-brain barrier (BBB) and into cancer cells, such as glioma cells that express LAT1. The compounds PD1 and PD2 did not show selective binding and had limited inhibitory effects on LAT1 in three cell lines (MCF-7, U87-MG, HEK-hLAT1). However, PD1 and PD2 demonstrated the ability to evade efflux mechanisms, and their in vitro uptake profiles were comparable to that of palbociclib, indicating their potential for effective cellular transport. In in situ and in vivo studies, brain uptake was not significantly improved compared to palbociclib, but the pharmacokinetic profiles showed encouraging enhancements. PD1 exhibited a higher AUCbrain/plasma ratio, suggesting safer dosing, while PD2 showed favorable long-acting pharmacokinetics. Although our prodrug design did not significantly improve palbociclib brain delivery due to the potential size limitation of the prodrugs, the study provides valuable insights for future prodrug development and drug delivery strategies targeting specific transporters.
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Affiliation(s)
- Juulia Järvinen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
| | - Ahmed B Montaser
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Santosh Kumar Adla
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Jukka Leppänen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Marko Lehtonen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Kati-Sisko Vellonen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Tuomo Laitinen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Aaro Jalkanen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - William F Elmquist
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN, United States
| | - Juri Timonen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland; Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5E, P.O. Box 56, 00014 Helsinki, Finland
| | - Kristiina M Huttunen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Jarkko Rautio
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
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Chang YC, Song J, Chang Y, Huang CH, Sudan A, Chen PC, Chi KY. The Association between Proton Pump Inhibitors and the Effectiveness of CDK Inhibitors in HR+/HER- Advanced Breast Cancer Patients: A Systematic Review and Meta-Analysis. Cancers (Basel) 2023; 15:5133. [PMID: 37958308 PMCID: PMC10649865 DOI: 10.3390/cancers15215133] [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: 09/27/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023] Open
Abstract
There have been many clinical questions regarding whether the use of proton pump inhibitors (PPIs) could deteriorate the effects of cyclin-dependent kinase inhibitors (CDKIs) in HR+/HER2- advanced breast cancer patients. We performed a systematic review and meta-analysis of this clinical question, including studies enrolling HR+/HER2- metastatic breast cancer patients treated with CDKIs (Palbociclib or Ribociclib) and reporting at least one comparative survival outcome, either overall survival (OS) or progression-free survival (PFS), between concomitant PPI users and non-users. Eight studies met the eligibility criteria, with a total of 2584 patients included (PPI users: 830, PPI non-users: 1754), demonstrating that concomitant PPI use was associated with significantly higher risks of all-cause mortality (HR = 2.03; 95% CI, 1.49 to 2.77; I2 = 0%) and disease progression (HR = 1.75; 95% CI, 1.26 to 2.43; I2 = 59%) in breast cancer patients taking Palbociclib. In contrast, there were no significant survival impacts of PPIs on Ribociclib (HR = 1.46; 95% CI, 0.91 to 2.34; I2 = 36%). Additionally, there was no significant difference in the risk associated with CDKI dose reduction due to drug toxicity (RR = 1.12; 95% CI, 0.97 to 1.29). Therefore, when HR+/HER2- advanced breast cancer patients require the use of PPIs, it may be reasonable to consider using Ribociclib.
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Affiliation(s)
- Yu-Cheng Chang
- Department of Internal Medicine, Danbury Hospital, Danbury, CT 06810, USA
- Department of Education, Center for Evidence-Based Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Junmin Song
- Department of Education, Center for Evidence-Based Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, 1400 Pelham Parkway South, Building 1, 3N21, Bronx, NY 10461, USA
| | - Yu Chang
- Section of Neurosurgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Chin-Hsuan Huang
- Department of Education, Center for Evidence-Based Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Aarushi Sudan
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, 1400 Pelham Parkway South, Building 1, 3N21, Bronx, NY 10461, USA
| | - Pei-Chin Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Kuan-Yu Chi
- Department of Education, Center for Evidence-Based Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, 1400 Pelham Parkway South, Building 1, 3N21, Bronx, NY 10461, USA
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11
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Wu F, Liu L, Gaudy A, Wang X, Carayannopoulos L, Pourdehnad M, Lamba M. Model based assessment of food and acid reducing agent effects on oral absorption of mezigdomide (CC-92480), a novel cereblon E3 ligase modulator. CPT Pharmacometrics Syst Pharmacol 2023; 12:1473-1484. [PMID: 37705327 PMCID: PMC10583261 DOI: 10.1002/psp4.13024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/16/2023] [Accepted: 07/24/2023] [Indexed: 09/15/2023] Open
Abstract
Mezigdomide is a novel cereblon E3 ligase modulator (CELMoD) agent with enhanced autonomous cell-killing activity in multiple myeloma (MM) cells, and promising immunomodulatory and antitumor activity in patients with MM. We developed a population pharmacokinetics (PKs) model for mezigdomide in healthy subjects (HSs), and quantified effects of high-fat meal and proton pump inhibitor (PPI) on human disposition parameters. Plasma concentrations from 64 HS in two phase I clinical studies (NCT03803644 and NCT04211545) were used to develop a population PK model. The HSs received single oral doses of 0.4-3.2 mg mezigdomide with full PK profiles collected. A two-compartment linear PK model with first-order absorption and lag time best described mezigdomide PK profiles in HSs. The population PK parameters of absorption rate constant, lag time, central volume of distribution, clearance, peripheral volume of distribution, and intercompartmental clearance were estimated to be 1.18 h-1 (interoccasion variability [IOV]: 65%), 0.423 h (IOV: 31%), 440 L (interindividual variability [IIV]: 63%), 35.1 L/h (IIV: 40%), 243 L (IIV: 26%), and 36.8 L/h (IIV: 26%), respectively. High-fat meal increased oral bioavailability by ~30% and PPI co-administration decreased oral bioavailability by ~64%. Mezigdomide demonstrated a linear dose-exposure relationship in HSs. The PK model suggests a modest effect of high-fat meal, and a substantial effect of PPIs on mezigdomide oral bioavailability. This population PK model enables data integration across studies to identify important covariate effects and is being used to guide dose selection in clinical study designs for mezigdomide in patients with MM.
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Affiliation(s)
- Fan Wu
- Bristol Myers SquibbPrincetonNew JerseyUSA
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12
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Schieber T, Steele S, Collins S, Berger M, Fleming M, McLaughlin E, Sudheendra P, Vargo C. Effect of Concurrent Proton Pump Inhibitors With Palbociclib Tablets for Metastatic Breast Cancer. Clin Breast Cancer 2023:S1526-8209(23)00131-3. [PMID: 37296062 DOI: 10.1016/j.clbc.2023.05.009] [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: 03/17/2023] [Revised: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Palbociclib is indicated for the treatment of hormone receptor positive (HR+) human epidermal growth factor receptor 2 negative (HER2-) metastatic breast cancer (MBC) in combination with an aromatase inhibitor or fulvestrant. Two retrospective studies found that concurrent proton pump inhibitor (PPI) use with palbociclib capsules significantly reduced progression free survival (PFS) versus patients without a PPI. Palbociclib tablets were released in 2020 without restriction on PPI use. No study to date has evaluated the combination of palbociclib tablets with concurrent PPI use. METHODS Patients were retrospectively evaluated after they received palbociclib tablets for the treatment of HR+ HER2- MBC in the first line setting with or without a PPI. Patients were assigned to the no PPI use arm if they never used a PPI and the PPI use arm if they used a PPI for >50% of the duration of palbocicib therapy. The primary endpoint was PFS. The secondary endpoints included overall survival (OS) and adverse events. RESULTS Eighty-two patients were identified; 50 in the no PPI use group and 32 in the PPI use group. The median PFS was 20.6 months (95% confidence interval [CI], 16.07 to not estimable) in the no PPI use arm versus 21.0 months (95% CI, 15.15 to not estimable) in the PPI use arm (P = 0.95). Median OS was not reached in either arm. Adverse effects did not differ between arms. CONCLUSION Use of a concurrent PPI with palbociclib tablets does not significantly reduce PFS in patients treated for HR+ HER2- MBC.
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Affiliation(s)
- Timothy Schieber
- Pharmacy Department, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH.
| | - Samantha Steele
- Pharmacy Department, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH; The Ohio State University, School of Pharmacy, Columbus, OH
| | - Stephanie Collins
- Pharmacy Department, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Michael Berger
- Pharmacy Department, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Megan Fleming
- Pharmacy Department, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Eric McLaughlin
- Department of Statistics, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Preeti Sudheendra
- Department of Medicine, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Craig Vargo
- Pharmacy Department, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
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13
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Lee Y, Lee D, Seo I, Chae H, Sim SH, Lee KS, Gwak HS. Risk Factors for Palbociclib-Induced Early Developing Neutropenia in Patients with Hormone Receptor-Positive Metastatic Breast Cancer. Cancers (Basel) 2023; 15:2810. [PMID: 37345147 DOI: 10.3390/cancers15102810] [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: 04/07/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023] Open
Abstract
PURPOSE This study aimed to determine the risk factors for palbociclib-induced grade 4 or grade 3 neutropenia (NP) requiring dose reduction or delayed treatment in patients with HR+/HER2-metastatic breast cancer in the first 3 cycles (early grade 3/4 NP) and whether the early developing grade 3/4 NP affects progression-free survival. METHODS A retrospective study using electronic medical records was conducted on patients who received palbociclib for metastatic breast cancer between January 2018 and August 2022. The early grade 3/4 NP risk factors were evaluated with univariate and multivariable logistic regression analyses. In addition, the Kaplan-Meier method was used to estimate the median progression-free survival (PFS) to analyze the effect of early grade 3/4 NP on treatment. RESULTS Out of the 264 patients included in this study, 173 (65.6%) experienced early grade 3/4 NP. A total of four models were applied for multivariable analysis to identify early grade 3/4 NP-developing factors. Low baseline ANC, WBC, PLT, and BSA were significant risk factors for early grade 3/4 NP; baseline ANC < 3700/mm3, WBC < 6.30 × 109/mm3, PLT < 230 × 109/mm3, and BSA < 1.58 m2 increased the risk by approximately 4.0-fold, 3.7-4.0-fold, 2.1-fold, and 2.0-fold, respectively. Early grade 3/4 NP did not affect PFS (p = 0.710), although patients with early grade 3/4 NP had more frequent dose reductions or treatment delays. CONCLUSIONS Based on the results, low baseline ANC, WBC, PLT, and BSA were associated with early grade 3/4 NP. Patients with risk factors require careful monitoring, and this study is expected to help predict NP, which may appear in early treatment.
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Affiliation(s)
- Yeonhong Lee
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
- Department of Pharmacy, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Dayae Lee
- Department of Pharmacy, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Inyoung Seo
- Department of Pharmacy, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Heejung Chae
- Center for Breast Cancer, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Sung Hoon Sim
- Center for Breast Cancer, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Keun Seok Lee
- Center for Breast Cancer, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Hye Sun Gwak
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
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14
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Does Proton Pump Inhibitors Decrease the Efficacy of Palbociclib and Ribociclib in Patients with Metastatic Breast Cancer? Medicina (B Aires) 2023; 59:medicina59030557. [PMID: 36984558 PMCID: PMC10052377 DOI: 10.3390/medicina59030557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023] Open
Abstract
Background and Objectives: This investigation aimed to determine the impacts of concurrent proton pump inhibitors (PPIs) on progression-free survival (PFS) in patients with hormone receptor-positive and HER2-negative metastatic breast cancer managed with palbociclib or ribociclib as either the initial or subsequent line of therapy option. Materials and Methods: In this retrospective study, patients were classified as “concurrent PPIs” if PPIs were given for at least two-thirds of the palbociclib or ribociclib therapy period, and “no concurrent PPIs” if no PPIs were given during the period of palbociclib or ribociclib therapy. Each patient was also classified as endocrine-sensitive or endocrine-resistant according to the duration of previous endocrine responses. “Concurrent PPIs” and “no concurrent PPIs” groups were compared with each other in terms of PFS. This comparison was performed for both ribociclib and palbociclib groups. Results: The research included 220 patients in total. The PFS of 57 patients on palbociclib using concomitant PPIs was 14.4 months. Among 63 patients using palbociclib without concomitant PPIs, the PFS was 15.8 months. No statistically significant difference was found with PPI use (p = 0.82). Among 29 patients using ribociclib concurrently with PPIs, the PFS was 22.4 months. Among 71 patients using ribociclib without PPIs, the PFS was 20.2 months. No statistically significant difference was found with PPI use (p = 0.40). Conclusion: The results of our investigation showed that concomitant use of the most commonly used PPIs in the study (lansoprazole, pantoprazole, and esomeprazole) with palbociclib or ribociclib did not have any detrimental effects on PFS. Where appropriate, PPIs can be used concurrently with palbociclib and ribociclib. However, the effect of PPIs on cycling-dependent kinase 4/6 inhibitors deserves further investigation.
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15
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Çağlayan D, Koçak MZ, Geredeli Ç, Tatlı AM, Göksu SS, Eryılmaz MK, Araz M, Artaç M. The effect of concomitant use of proton pump inhibitors with CDK 4/6 inhibitors on survival in metastatic breast cancer. Eur J Clin Pharmacol 2023; 79:243-248. [PMID: 36520173 DOI: 10.1007/s00228-022-03435-7] [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: 11/06/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022]
Abstract
AIM To evaluate the difference of progression free survival between the patients using concomitant proton pump inhibitors and non-users in the patients using CDK 4/6 inhibitors with HR + and HER2 negative mBC. METHODS We included 86 patients with HR + and HER 2 negative mBC treated with CDK 4/6 inhibitors in this study. Patients were divided into two categories according to their status of PPI use. The primary end points was progression free survival (PFS). We compared PPI users and non-users. RESULTS Forty-five (52.3%) patients used a PPI concomitantly with a CDK 4/6 inhibitor, and 41 (47.7%) did not. The median duration of follow-up was 10.68 (1.94-27.56) months. Of the patients, 50 (58.1%) palbociclib and 36 (41.9%) received ribociclib. The median progression free survival (mPFS) was 10.9 months (95% CI: 7.5-14.27) in the group with concomitant PPI use with a CDK 4/6 inhibitor, whereas the median progression free survival could not be reached in the group without concomitant PPI use (p = 0.04). In addition, concomitant PPI use with palbociclib was associated with a shorter PFS; there was no significant difference between the concomitant PPI users and non-users in terms of PFS in the patients using ribociclib. CONCLUSION Palbociclib and ribociclib are weak base drugs so their bioavailability is pH-dependent. PPIs can affect their solubility and their concentration in the plasma. Therefore, we must avoid concomitant use of PPIs and CDK 4/6 inhibitors. If we need to use concomitant PPI and CDK 4/6 inhibitors, we should prefer ribociclib than palbociclib.
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Affiliation(s)
- Dilek Çağlayan
- Department of Medical Oncology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.
| | - Mehmet Zahid Koçak
- Department of Medical Oncology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Çağlayan Geredeli
- Department of Medical Oncology, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Ali Murat Tatlı
- Department of Medical Oncology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Sema Sezgin Göksu
- Department of Medical Oncology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Melek Karakurt Eryılmaz
- Department of Medical Oncology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Murat Araz
- Department of Medical Oncology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Mehmet Artaç
- Department of Medical Oncology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
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16
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Raoul JL, Moreau-Bachelard C, Gilabert M, Edeline J, Frénel JS. Drug-drug interactions with proton pump inhibitors in cancer patients: an underrecognized cause of treatment failure. ESMO Open 2023; 8:100880. [PMID: 36764092 PMCID: PMC10024146 DOI: 10.1016/j.esmoop.2023.100880] [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: 01/03/2023] [Accepted: 01/12/2023] [Indexed: 02/11/2023] Open
Abstract
New concepts and drugs have revolutionized medical treatment for cancers. These drugs, which are very expensive and usually well tolerated, have dramatically improved cancer prognosis. We must use them wisely for patients to fully benefit. Gastric acid antisecretory drugs and particularly proton pump inhibitors (PPIs) revolutionized the treatment of gastroduodenal ulcers and severe gastroesophageal reflux, but are frequently overused for symptomatic treatment of epigastric pain or heartburn. Long-term acid suppression may alter the efficacy of many anticancer drugs, such as tyrosine kinase inhibitors (TKIs), cyclin-dependent kinase (CDK) 4/6 inhibitors and immune checkpoint inhibitors (ICIs), by either decreasing gastric acid secretion and thus drug absorption, or by modifying the gut microbiome that modulates the response to ICIs. Oncologists thus need to pay particular attention to the concomitant use of PPIs and anticancer drugs. These interactions translate into major clinical impacts, with demonstrated loss of efficacy for some TKIs (erlotinib, gefitinib, pazopanib), and conflicting results with many other oral drugs, including capecitabine and CDK 4/6 inhibitors. Furthermore, the profound changes in the gut microbiome due to using PPIs have shown that the benefit of using ICIs may be suppressed in patients treated with PPIs. As the use of PPIs is not essential, we must apply the precautionary principle. The first sentence of a recent Comment in Nature was "Every day, millions of people are taking medications that will not help them". We fear that every day millions of cancer patients are taking medications that harm them. While this may well be only association and not causation, there is enough to make us pause until we reach a clear answer. All these data should encourage medical oncologists to refrain from prescribing PPIs, explaining to patients the risks of interaction in order to prevent inappropriate prescription by another physician.
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Affiliation(s)
- J L Raoul
- Department of Medical Oncology, Institut de Cancérologie de l'Ouest, Saint-Herblain, France.
| | - C Moreau-Bachelard
- Department of Medical Oncology, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | - M Gilabert
- Department of Medical Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - J Edeline
- Department of Medical Oncology, Centre Eugène Marquis, Rennes, France
| | - J S Frénel
- Department of Medical Oncology, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
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17
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Kuminek G, Salehi N, Waltz NM, Sperry DC, Greenwood DE, Hate SS, Amidon GE. Use of Gastrointestinal Simulator, Mass Transport Analysis, and Absorption Simulation to Investigate the Impact of pH Modifiers in Mitigating Weakly Basic Drugs' Performance Issues Related to Gastric pH: Palbociclib Case Study. Mol Pharm 2023; 20:147-158. [PMID: 36367432 DOI: 10.1021/acs.molpharmaceut.2c00545] [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: 11/13/2022]
Abstract
It is well known that reduced gastric acidity, for example with concomitant administration of acid reducing agents, can result in variable pharmacokinetics and decreased absorption of weakly basic drugs. It is important to identify the risk of reduced and variable absorption early in development, so that product design options to address the risk can be considered. This article describes the utilization of in vitro and in silico tools to predict the effect of gastric pH, as well as the impact of adding pH modifiers, in mitigating the effect of acid reducing agents on weak base drugs' dissolution and absorption. Palbociclib, a weakly basic drug, was evaluated in low and high gastric pH conditions in a multicompartmental dissolution apparatus referred to as a gastrointestinal simulator (GIS). The GIS permits the testing of pharmaceutical products in a way that better assesses dissolution under physiologically relevant conditions of pH, buffer concentration, formulation additives, and physiological variations including GI pH, buffer concentrations, secretions, stomach emptying rate, residence time in the GI, and aqueous luminal volume. To predict drug dissolution in the GIS, a hierarchical mass transport model was used and validated using in vitro experimental data. Dissolution results were then compared to observed human clinical plasma data with and without proton pump inhibitors using a GastroPlus absorption model to predict palbociclib plasma profiles and pharmacokinetic parameters. The results showed that the in silico model successfully predicted palbociclib dissolution in the GIS under low and high gastric pH conditions with and without pH modifiers. Furthermore, the GIS data coupled with the in silico tools anticipated (1) the reduced palbociclib exposure due to proton pump inhibitor coadministration and (2) the mitigating effect of a pH-modifying agent. This study provides tools to help in the development of orally administered formulations to overcome the effect of elevated gastric pH, especially when formulating with pH modifiers.
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Affiliation(s)
- Gislaine Kuminek
- Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana46285, United States.,Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan48109, United States
| | - Niloufar Salehi
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan48109, United States.,Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan48109, United States
| | - Nicholas M Waltz
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan48109, United States.,College of Pharmacy, Ohio State University, Columbus, Ohio43210, United States
| | - David C Sperry
- Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana46285, United States
| | - Dale E Greenwood
- Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana46285, United States
| | - Siddhi S Hate
- Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana46285, United States
| | - Gregory E Amidon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan48109, United States
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18
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Del Re M, Crucitta S, Omarini C, Bargagna I, Mongillo M, Palleschi M, Stucci S, Meattini I, D'Onofrio R, Lorenzini G, Biondani P, De Giorgi U, Porta C, Livi L, Natalizio S, Fontana A, Giontella E, Angelini L, Fogli S, Danesi R. Concomitant administration of proton pump inhibitors does not significantly affect clinical outcomes in metastatic breast cancer patients treated with ribociclib. Breast 2022; 66:157-161. [PMID: 36283134 PMCID: PMC9593796 DOI: 10.1016/j.breast.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/20/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Gastric pH changes by proton-pump-inhibitors (PPIs) were found to affect progression-free survival (PFS) in metastatic breast cancer (mBC) patients treated with palbociclib. The current study was aimed at investigating whether the same effect could occur in patients treated with ribociclib. PATIENTS AND METHODS Patients with hormone-positive/HER-2-negative mBC candidates for first-line treatment with ribociclib were enrolled in this retrospective-cohort study. Patients were classified as "no concomitant PPIs" or "concomitant PPIs"; PPI administration covered the entire or not less than 2/3 of treatment with ribociclib. All clinical interventions were made according to clinical practice. RESULTS A total of 128 patients were consecutively enrolled in the study; 78 belonged to the "no concomitant PPIs" group and 50 to the "concomitant PPIs" group. One hundred and six patients were endocrine-sensitive and received ribociclib and letrozole, while 22 were endocrine-resistant and were treated with ribociclib and fulvestrant. The most prescribed PPI was lansoprazole. According to PFS, patients taking PPIs had a PFS almost superimposable to those assuming ribociclib and endocrine therapy alone (35.3 vs. 49.2 months, p = 0.594). No difference in PFS was observed in estrogen-sensitive or estrogen-resistant mBC in the presence or absence of concomitant PPI treatment (p = 0.852). No correlation with adverse events was found including grade>2 hematological toxicities. CONCLUSIONS The present study supports the hypothesis that the concomitant use of PPIs does not compromise the efficacy of ribociclib in a real-life setting.
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Affiliation(s)
- Marzia Del Re
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | - Stefania Crucitta
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | | | - Irene Bargagna
- Unit of Medical Oncology, Department of Translational Research and New Technologies in Medicine, University of Pisa, Italy
| | - Marta Mongillo
- Section of Oncology, Department of Medicine, University of Verona and University and Hospital Trust of Verona, Italy
| | - Michela Palleschi
- Unit of Medical Oncology, IRCCS-Istituto Romagnolo per lo Studio dei Tumori (IRST) ‘Dino Amadori’, Meldola, Italy
| | - Stefania Stucci
- Division of Oncology, Department of Biomedical Sciences and Human Oncology, University of Bari, Italy
| | - Icro Meattini
- Department of Experimental and Clinical Biomedical Sciences ‘M. Serio’, University of Florence, Italy,Radiation Oncology Unit e Oncology Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | | | - Giulia Lorenzini
- Unit of Medical Oncology, Department of Translational Research and New Technologies in Medicine, University of Pisa, Italy
| | - Pamela Biondani
- Section of Oncology, Department of Medicine, University of Verona and University and Hospital Trust of Verona, Italy
| | - Ugo De Giorgi
- Unit of Medical Oncology, IRCCS-Istituto Romagnolo per lo Studio dei Tumori (IRST) ‘Dino Amadori’, Meldola, Italy
| | - Camillo Porta
- Division of Oncology, Department of Biomedical Sciences and Human Oncology, University of Bari, Italy
| | - Lorenzo Livi
- Department of Experimental and Clinical Biomedical Sciences ‘M. Serio’, University of Florence, Italy,Radiation Oncology Unit e Oncology Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | | | - Andrea Fontana
- Unit of Medical Oncology, Department of Translational Research and New Technologies in Medicine, University of Pisa, Italy
| | - Elena Giontella
- Section of Oncology, Department of Medicine, University of Verona and University and Hospital Trust of Verona, Italy
| | - Lucia Angelini
- Department of Experimental and Clinical Biomedical Sciences ‘M. Serio’, University of Florence, Italy,Radiation Oncology Unit e Oncology Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Stefano Fogli
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Italy,Corresponding author. Department of Clinical and Experimental Medicine, Via Roma, 55, 56126, Pisa, Italy.
| | - Romano Danesi
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Italy
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19
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Population Pharmacokinetics of Palbociclib and Its Correlation with Clinical Efficacy and Safety in Patients with Advanced Breast Cancer. Pharmaceutics 2022; 14:pharmaceutics14071317. [PMID: 35890213 PMCID: PMC9322950 DOI: 10.3390/pharmaceutics14071317] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/03/2022] [Accepted: 06/10/2022] [Indexed: 12/04/2022] Open
Abstract
Neutropenia is the most frequent dose-limiting toxicity reported in patients with metastatic breast cancer receiving palbociclib. The objective of this study was to investigate the pharmacokinetic–pharmacodynamic (PK/PD) relationships for toxicity (i.e., absolute neutrophil count, ANC) and efficacy (i.e., progression-free survival, PFS). A semi-mechanistic PK/PD model was used to predict neutrophils’ time course using a population approach (NONMEM). Influence of demographic and clinical characteristics was evaluated. Cox proportional hazards models were developed to evaluate the influence of palbociclib PK on PFS. A two-compartment model with first-order absorption and a lag time adequately described the 255 palbociclib concentrations provided by 44 patients. The effect of the co-administration of proton-pump inhibitors in fasting conditions increased palbociclib clearance by 56%. None of the tested covariates affected the PD parameters. Model-based simulations confirmed the concentration-dependent and non-cumulative properties of palbociclib-induced neutropenia, reversible after treatment withdrawal. The ANC nadir occurred approximately at day 24 of each cycle. Cox analyses revealed a trend for better PFS with increasing palbociclib exposure in older patients. By characterizing palbociclib-induced neutropenia, this model offers support to clinicians to rationally optimize treatment management through patient-individualized strategies.
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Applications, Challenges, and Outlook for PBPK Modeling and Simulation: A Regulatory, Industrial and Academic Perspective. Pharm Res 2022; 39:1701-1731. [PMID: 35552967 DOI: 10.1007/s11095-022-03274-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/25/2022] [Indexed: 12/20/2022]
Abstract
Several regulatory guidances on the use of physiologically based pharmacokinetic (PBPK) analyses and physiologically based biopharmaceutics model(s) (PBBM(s)) have been issued. Workshops are routinely held, demonstrating substantial interest in applying these modeling approaches to address scientific questions in drug development. PBPK models and PBBMs have remarkably contributed to model-informed drug development (MIDD) such as anticipating clinical PK outcomes affected by extrinsic and intrinsic factors in general and specific populations. In this review, we proposed practical considerations for a "base" PBPK model construction and development, summarized current status, challenges including model validation and gaps in system models, and future perspectives in PBPK evaluation to assess a) drug metabolizing enzyme(s)- or drug transporter(s)- mediated drug-drug interactions b) dosing regimen prediction, sampling timepoint selection and dose validation in pediatric patients from newborns to adolescents, c) drug exposure in patients with renal and/or and hepatic organ impairment, d) maternal-fetal drug disposition during pregnancy, and e) pH-mediated drug-drug interactions in patients treated with proton pump inhibitors/acid-reducing agents (PPIs/ARAs) intended for gastric protection. Since PBPK can simulate outcomes in clinical studies with enrollment challenges or ethical issues, the impact of PBPK models on waivers and how to strengthen study waiver is discussed.
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Proton pump inhibitors may reduce the efficacy of ribociclib and palbociclib in metastatic breast cancer patients based on an observational study. BMC Cancer 2022; 22:516. [PMID: 35525929 PMCID: PMC9078089 DOI: 10.1186/s12885-022-09624-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 04/25/2022] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Approximately 20-33% of all cancer patients are treated with acid-reducing agents (ARAs), most commonly proton pump inhibitors (PPIs), to reduce gastroesophageal reflux disease symptoms. Palbociclib and ribociclib are weak bases so their solubility depends on different pH. The solubility of palbociclib dramatically decreases to < 0.5 mg/ml when pH is above 4,5 but ribociclibs' solubility decreases when pH increases above 6,5. In the current study, we aimed to investigate the effects of concurrent PPIs on palbociclib and ribociclib efficacy in terms of progression-free survival in metastatic breast cancer (mBC) patients. PATIENTS AND METHODS We enrolled hormone receptor-positive, HER2-negative mBC patients treated with endocrine treatment (letrozole or fulvestrant) combined palbociclib or ribociclib alone or with PPI accompanying our observational study. During palbociclib/ribociclib therapy, patients should be treated with "concurrent PPIs" defined as all or more than half of treatment with palbociclib/ribociclib, If no PPI was applied, it was defined as 'no concurrent PPI', those who used PPI but less than half were excluded from the study. All data was collected from real-life retrospectively. RESULTS Our study included 217 patients, 105 of whom received palbociclib and 112 received ribociclib treatment. In the study population CDK inhibitor treatment was added to fulvestrant 102 patients ( 47%), to letrozole 115 patients (53%). In the Palbociclib arm fulvestrant/letrozole ratio was 53.3/46.7%, in the ribociclib arm it was 41.07/58.93%. Of 105 patients who received palbociclib, 65 were on concomitant PPI therapy, 40 were not. Of the 112 patients who received ribociclib, 61 were on concomitant PPI therapy, 51 were not. In the palbociclib group, the PFS of the patients using PPIs was shorter than the PFS of the patients not using (13.04 months vs. unreachable, p < 0.001). It was determined that taking PPIs was an independent predictor of shortening PFS (p < 0.001) in the multivariate analysis, In the ribociclib group, the PFS of the patients using PPIs was shorter than the PFS of the patients not using (12.64 months vs. unreachable, p = 0.003). It was determined that taking PPIs was single statistically independent predictor of shortening PFS (p = 0.003, univariate analysis). CONCLUSIONS Our study demonstrated that concomitant usage of PPIs was associated with shorter PFS in mBC treated with both ribociclib and especially palbociclib. If it needs to be used, PPI selection should be made carefully and low-strength PPI or other ARAs (eg H2 antagonists, antacids) should be preferred.
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Pharmacokinetic Variability Drives Palbociclib-Induced Neutropenia in Metastatic Breast Cancer Patients: Drug-Drug Interactions Are the Usual Suspects. Pharmaceutics 2022; 14:pharmaceutics14040841. [PMID: 35456675 PMCID: PMC9032884 DOI: 10.3390/pharmaceutics14040841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 12/04/2022] Open
Abstract
Palbociclib is a good candidate for therapeutic drug monitoring (TDM) due to its narrow therapeutic range and frequency of toxicities, particularly high-grade neutropenia. In this prospective, bicentric clinical trial, we evaluated the palbociclib exposure−toxicity relationship and determined the relevant sources of palbociclib pharmacokinetic variability, including drug−drug interactions (DDI). We followed 58 patients (mean age: 62.9 years) for 1 year. The geometric median of palbociclib plasma trough concentration (Ctrough) was 74.1 ng/mL. Neutropenia occurred in 70.7% of patients (high grade in 67.2% of patients). High-grade neutropenia occurrence during the first two palbociclib cycles was higher in patients with lower neutrophil count at initiation (p = 0.002). Palbociclib plasma Ctrough was correlated with high-grade neutropenia occurrence during the first two cycles (p = 0.024, OR 5.51). Co-treatment with agents that may interfere with palbociclib PK significantly influenced palbociclib Ctrough (p < 0.05). CYP3A4/P-glycoprotein inhibitors increased by 25% palbociclib Ctrough (p = 0.035), while antacids reduced it by 20% (p = 0.036). However, DDI did not have any significant effect on high-grade neutropenia occurrence (p > 0.05). This study confirms the major role of TDM to manage palbociclib safe use from the first week of treatment, particularly the significant incidence of hematological toxicity. Moreover, this first dedicated prospective study confirmed the importance of characterizing co-treatments to limit the DDI risk with oral-targeted therapies.
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Scherf-Clavel O. Drug-Drug Interactions With Over-The-Counter Medicines: Mind the Unprescribed. Ther Drug Monit 2022; 44:253-274. [PMID: 34469416 DOI: 10.1097/ftd.0000000000000924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/21/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND This review provides a summary of the currently available clinical data on drug-drug interactions (DDIs) involving over-the-counter (OTC) medicines. It aims to educate and increase awareness among health care providers and to support decisions in daily practice. METHODS An extensive literature search was performed using bibliographic databases available through PubMed.gov. An initial structured search was performed using the keywords "drug-drug-interaction AND (over-the-counter OR OTC)," without further restrictions except for the language. The initial results were screened for all described DDIs involving OTC drugs, and further information was gathered specifically on these drugs using dedicated database searches and references found in the bibliography from the initial hits. RESULTS From more than 1200 initial hits (1972-June 2021), 408 relevant publications were screened for DDIs involving OTC drugs, leading to 2 major findings: first, certain types of drug regimens are more prone to DDIs or have more serious DDI-related consequences, such as antiretroviral, anti-infective, and oral anticancer therapies. Second, although most DDIs involve OTC drugs as the perpetrators, some prescription drugs (statins or phosphodiesterase-5 inhibitors) that currently have OTC status can be identified as the victims in DDIs. The following groups were identified to be frequently involved in DDIs: nonsteroidal anti-inflammatory drugs, food supplements, antacids, proton-pump inhibitors, H2 antihistamines, laxatives, antidiarrheal drugs, and herbal drugs. CONCLUSIONS The most significant finding was the lack of high-quality evidence for commonly acknowledged interactions. High-quality interaction studies involving different phenotypes in drug metabolism (cytochrome P450) and distribution (transporters) are urgently needed. This should include modern and critical drugs, such as oral anticancer medications and direct oral anticoagulants.
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Affiliation(s)
- Oliver Scherf-Clavel
- Institute for Pharmacy and Food Chemistry, University of Würzburg, Würzburg, Germany
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Bridoux M, Simon N, Turpin A. Proton Pump Inhibitors and Cancer: Current State of Play. Front Pharmacol 2022; 13:798272. [PMID: 35359844 PMCID: PMC8963837 DOI: 10.3389/fphar.2022.798272] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 02/04/2022] [Indexed: 12/11/2022] Open
Abstract
Background: Proton pump inhibitors (PPIs) are one of the most widely used drugs worldwide and are overprescribed in patients with cancer; there is increasing evidence of their effects on cancer development and survival. The objective of this narrative review is to comprehensively identify cancer medications that have clinically meaningful drug–drug interactions (DDIs) with PPIs, including loss of efficacy or adverse effects, and to explore the association between PPIs and cancer.Methods: A PubMed search of English language studies published from 1 January 2016, to 1 June 2021 was conducted. The search terms included “proton pump inhibitors,” “cancer,” “chemotherapy,” “immunotherapy,” “hormonotherapies,” “targeted therapies,” “tyrosine kinase inhibitors,” and “gut microbiome”. Recent and relevant clinical trials, meta-analyses, and reviews were included.Results: PPIs may have pro-tumor activity by increasing plasma gastrin levels or anti-tumor activity by inhibiting V-ATPases. However, their impact on cancer survival remains unclear. PPIs may decrease the efficacy of some antineoplastic agents through direct DDIs (e.g., some tyrosine kinase inhibitors, capecitabine, irinotecan, methotrexate). More complex DDIs seem to exist for immunotherapies with indirect interactions through the microbiome. PPIs worsen hypomagnesemia, bone loss, iron, and vitamin B12 deficiencies but may have a protective effect on the renal system.Discussion/Conclusions: PPIs may interact with the cancer microbiome and the efficacy of various antineoplastic agents, although only a few DDIs involving PPIs are clinically significant. Further pharmaco-epidemiological studies are warranted, but physicians should be aware of the potential consequences of PPI use, which should be dose appropriate and prescribed according to guidelines.
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Affiliation(s)
- Marie Bridoux
- University of Lille, Lille, France
- Medical Oncology Department, Lille University Hospital, Lille, France
| | - Nicolas Simon
- CHU Lille, ULR 7365—GRITA—Groupe de Recherche sur les Formes Injectables et les Technologies Associées, University of Lille, Lille, France
| | - Anthony Turpin
- Medical Oncology Department, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020—UMR-S 1277—CANTHER-Cancer Heterogeneity, Plasticity and Resistance to Therapies, CHU Lille, University of Lille, Lille, France
- *Correspondence: Anthony Turpin, , orcid.org/0000-0002-2282-0101
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Raoul JL, Edeline J, Simmet V, Moreau-Bachelard C, Gilabert M, Frénel JS. Long-Term Use of Proton Pump Inhibitors in Cancer Patients: An Opinion Paper. Cancers (Basel) 2022; 14:cancers14051156. [PMID: 35267464 PMCID: PMC8909698 DOI: 10.3390/cancers14051156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Proton pump inhibitors are frequently used in cancer patients to alleviate some symptoms, epigastric pain or heartburn. However, acid suppression decreases the absorption of some oral-targeted anticancer treatments (tyrosine kinase inhibitors, CDK4/6 inhibitors) and induces changes in the gut microbiome. Recent data are showing that these interactions have important clinical impacts and medical oncologists and patients must be aware of these possible interactions. Abstract Multikinase inhibitors (MKIs), and particularly tyrosine kinase inhibitors (TKIs) and immune checkpoint inhibitors (CPIs), are currently some of the major breakthroughs in cancer treatment. Proton pump inhibitors (PPIs) revolutionised the treatment of acid-related diseases, but are frequently overused for epigastric pain or heartburn. However, long-term acid suppression from using PPIs may lead to safety concerns, and could have a greater impact in cancer patients undergoing therapy, like bone fractures, renal toxicities, enteric infections, and micronutrient deficiencies (iron and magnesium). Moreover, acid suppression may also affect the pharmacokinetics of drugs (at least during acid suppression) and decrease the absorption of many molecularly-targeted anticancer therapies, which are mostly weak bases with pH-dependent absorption. This type of drug-drug interaction may have detrimental effects on efficacy, with major clinical impacts described for some orally administrated targeted therapies (erlotinib, gefitinib, pazopanib, palbociclib), and conflicting results with many others, including capecitabine. Furthermore, the long-term use of PPIs results in severe alterations to the gut microbiome and recent retrospective analyses have shown that the benefit of using CPIs was suppressed in patients treated with PPIs. These very expensive drugs are of great importance because of their efficacy. As the use of PPIs is not essential, we must apply the precautionary principle. All these data should encourage medical oncologists to refrain from prescribing PPIs, explaining to patients the risks of interaction in order to prevent inappropriate prescription by another physician.
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Affiliation(s)
- Jean-Luc Raoul
- Department of Medical Oncology, Institut de Cancérologie de l’Ouest, 44805 Saint-Herblain, France; (C.M.-B.); (J.-S.F.)
- Correspondence:
| | - Julien Edeline
- Department of Medical Oncology, Centre E Marquis, 35000 Rennes, France;
| | - Victor Simmet
- Department of Medical Oncology, Institut de Cancérologie de l’Ouest, 49055 Angers, France;
- Department of Medical Oncology, Centre Hospitalier de Cholet, 49300 Cholet, France
| | - Camille Moreau-Bachelard
- Department of Medical Oncology, Institut de Cancérologie de l’Ouest, 44805 Saint-Herblain, France; (C.M.-B.); (J.-S.F.)
| | - Marine Gilabert
- Department of Medical Oncology, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland;
| | - Jean-Sébastien Frénel
- Department of Medical Oncology, Institut de Cancérologie de l’Ouest, 44805 Saint-Herblain, France; (C.M.-B.); (J.-S.F.)
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Miao L, Wu F, Yang X, Mousa YM, Ramamoorthy A, Lee SC, Raines K, Zhang L, Seo P. Application of Solubility and Dissolution Profile Comparison for Prediction of Gastric pH-Mediated Drug-Drug Interactions. AAPS J 2022; 24:35. [DOI: 10.1208/s12248-022-00684-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/19/2022] [Indexed: 11/30/2022] Open
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Owens K, Argon S, Yu J, Yang X, Wu F, Lee SC, Sun WJ, Ramamoorthy A, Zhang L, Ragueneau-Majlessi I. Exploring the Relationship of Drug BCS Classification, Food Effect, and Gastric pH-Dependent Drug Interactions. AAPS J 2021; 24:16. [PMID: 34961909 DOI: 10.1208/s12248-021-00667-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/16/2021] [Indexed: 01/16/2023] Open
Abstract
Food effect (FE) and gastric pH-dependent drug-drug interactions (DDIs) are both absorption-related. Here, we evaluated if Biopharmaceutics Classification System (BCS) classes may be correlated with FE or pH-dependent DDIs. Trends in FE data were investigated for 170 drugs with clinical FE studies from the literature and new drugs approved from 2013 to 2019 by US Food and Drug Administration. A subset of 38 drugs was also evaluated to determine whether FE results can inform the need for a gastric pH-dependent DDI study. The results of FE studies were defined as no effect (AUC ratio 0.80-1.25), increased exposure (AUC ratio ≥1.25), or decreased exposure (AUC ratio ≤0.8). Drugs with significantly increased exposure FE (AUC ratio ≥2.0; N=14) were BCS Class 2 or 4, while drugs with significantly decreased exposure FE (AUC ratio ≤0.5; N=2) were BCS Class 1/3 or 3. The lack of FE was aligned with the lack of a pH-dependent DDI for all 7 BCS Class 1 or 3 drugs as expected. For the 13 BCS Class 2 or 4 weak base drugs with an increased exposure FE, 6 had a pH-dependent DDI (AUC ratio ≤0.8). Among the 16 BCS Class 2 or 4 weak base drugs with no FE, 6 had a pH-dependent DDI (AUC ratio ≤0.8). FE appears to have limited correlation with BCS classes except for BCS Class 1 drugs, confirming that multiple physiological mechanisms can impact FE. Lack of FE does not indicate absence of pH-dependent DDI for BCS Class 2 or 4 drugs. Graphical Abstract.
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Affiliation(s)
- Katie Owens
- Department of Pharmaceutics, University of Washington, H-272 Health Sciences Building, Box 357610, Seattle, Washington, 98195, USA.
| | - Sophie Argon
- Department of Pharmaceutics, University of Washington, H-272 Health Sciences Building, Box 357610, Seattle, Washington, 98195, USA
| | - Jingjing Yu
- Department of Pharmaceutics, University of Washington, H-272 Health Sciences Building, Box 357610, Seattle, Washington, 98195, USA
| | - Xinning Yang
- Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Fang Wu
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Sue-Chih Lee
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Wei-Jhe Sun
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Anuradha Ramamoorthy
- Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Lei Zhang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Isabelle Ragueneau-Majlessi
- Department of Pharmaceutics, University of Washington, H-272 Health Sciences Building, Box 357610, Seattle, Washington, 98195, USA
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Duan C, Liu W, Tao Y, Liang F, Chen Y, Xiao X, Zhang G, Chen Y, Hao C. Two Novel Palbociclib-Resorcinol and Palbociclib-Orcinol Cocrystals with Enhanced Solubility and Dissolution Rate. Pharmaceutics 2021; 14:23. [PMID: 35056919 PMCID: PMC8781472 DOI: 10.3390/pharmaceutics14010023] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/14/2021] [Accepted: 12/21/2021] [Indexed: 02/07/2023] Open
Abstract
Palbociclib (PAL) is an effective anti-breast cancer drug, but its use has been partly restricted due to poor bioavailability (resulting from extremely low water solubility) and serious adverse reactions. In this study, two cocrystals of PAL with resorcinol (RES) or orcinol (ORC) were prepared by evaporation crystallization to enhance their solubility. The cocrystals were characterized by single crystal X-ray diffraction, Hirshfeld surface analysis, powder X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared and scanning electron microscopy. The intrinsic dissolution rates of the PAL cocrystals were determined in three different dissolution media (pH 1.0, pH 4.5 and pH 6.8), and both cocrystals showed improved dissolution rates at pH 1.0 and pH 6.8 in comparison to the parent drug. In addition, the cocrystals increased the solubility of PAL at pH 6.8 by 2-3 times and showed good stabilities in both the accelerated stability testing and stress testing. The PAL-RES cocrystal also exhibited an improved relative bioavailability (1.24 times) than PAL in vivo pharmacokinetics in rats. Moreover, the in vitro cytotoxicity assay of PAL-RES showed an increased IC50 value for normal cells, suggesting a better biosafety profile than PAL. Co-crystallization may represent a promising strategy for improving the physicochemical properties of PAL with better pharmacokinetics.
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Affiliation(s)
- Chenxin Duan
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
| | - Wenwen Liu
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
| | - Yunwen Tao
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA;
| | - Feifei Liang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
| | - Yanming Chen
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
| | - Xinyi Xiao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
| | - Guisen Zhang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yin Chen
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
| | - Chao Hao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (C.D.); (W.L.); (F.L.); (Y.C.); (X.X.); (G.Z.)
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Predictors for development of palbociclib-induced neutropenia in breast cancer patients as determined by ordered logistic regression analysis. Sci Rep 2021; 11:20055. [PMID: 34625634 PMCID: PMC8501092 DOI: 10.1038/s41598-021-99504-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/27/2021] [Indexed: 01/08/2023] Open
Abstract
This retrospective study aimed to identify predictors for the development of palbociclib-induced neutropenia. This study retrospectively analysed 78 breast cancer patients who had received palbociclib at our hospital between January 2018 and May 2020. For the regression analysis of factors associated with palbociclib-induced neutropenia, variables were extracted manually from medical charts. The level of palbociclib-induced neutropenia was evaluated using the National Cancer Institute’s Common Terminology Criteria for Adverse Events (version 5). Multivariate ordered logistic regression analysis was performed to identify predictors for the development of neutropenia. Optimal cut-off thresholds were determined using receiver operating characteristic (ROC) analysis. Values of P < 0.05 (2-tailed) were considered significant. Significant factors identified included concomitant use of statin (odds ratio [OR] = 0.104, 95% confidence interval [CI] = 0.018–0.598; P = 0.011) and body mass index (BMI) (OR = 1.118, 95% CI = 1.007–1.241; P = 0.037). ROC analysis revealed that neutropenia (grade 4) was more likely to occur with a BMI ≥ 22.3 kg/m2. In conclusion, no concomitant use of statins and high BMI were identified as significant predictors for the development of palbociclib-induced neutropenia.
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Understanding the guest binding in the cucurbit[7]uril inclusion complexes of CDK4/6 inhibitors, palbociclib, and ribociclib from a combined experimental and computational study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Clinical Pharmacokinetics and Pharmacodynamics of the Cyclin-Dependent Kinase 4 and 6 Inhibitors Palbociclib, Ribociclib, and Abemaciclib. Clin Pharmacokinet 2021; 59:1501-1520. [PMID: 33029704 DOI: 10.1007/s40262-020-00930-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Palbociclib, ribociclib, and abemaciclib are inhibitors of the cyclin-dependent kinases 4 and 6 approved for the treatment of locally advanced or metastatic breast cancer. In this review, we provide an overview of the available clinical pharmacokinetic and pharmacodynamic characteristics of these novel drugs, summarize the results of food-effect and drug-drug interaction studies, and highlight exposure-response and exposure-toxicity relationships. All three drugs exhibit a large inter-individual variability in exposure (coefficient of variation range 40-95% for minimum plasma concentration), are extensively metabolized by cytochrome P450 3A4, and have their brain penetration limited by efflux transporters. Abemaciclib has three active metabolites with similar potency that are clinically relevant (i.e., M2, M20, M18), whereas the metabolites of palbociclib and ribociclib are not of clinical significance. Pharmacokinetic exposure increases in a dose-proportional manner for palbociclib, whereas exposure increases under- and over-proportionally with an increasing dose for abemaciclib and ribociclib, respectively. High exposure is associated with an increased risk of neutropenia, and for ribociclib also to corrected QT prolongation. For abemaciclib, a clear exposure-efficacy relationship has been described, while for palbociclib and ribociclib exposure-response analyses remain inconclusive. Future studies are needed to address exposure-efficacy relationships to further improve dosing.
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Drug-drug interactions between palbociclib and proton pump inhibitors may significantly affect clinical outcome of metastatic breast cancer patients. ESMO Open 2021; 6:100231. [PMID: 34509802 PMCID: PMC8441157 DOI: 10.1016/j.esmoop.2021.100231] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/03/2021] [Accepted: 07/10/2021] [Indexed: 11/30/2022] Open
Abstract
Background Proton-pump-inhibitors (PPIs) are frequently prescribed for the management of anticancer drug-related gastrointestinal symptoms. Palbociclib is a weak base with pH-dependent solubility and potential drug-drug interaction at the absorption level may affect clinical pharmacokinetics. The current study was aimed at investigating the effect of co-administration of PPIs and palbociclib on progression-free survival (PFS) in metastatic breast cancer (mBC) patients. Patients and methods Patients affected by estrogen receptor-positive, human epidermal growth factor receptor 2-negative mBC, who were candidates for first-line treatment with palbociclib, were enrolled in this retrospective observational study. Patients were defined as ‘no concomitant PPIs’ if no PPIs were administered during palbociclib treatment, and as ‘concomitant PPIs’ if the administration of PPIs covered the entire or not less than two-thirds of treatment with palbociclib. All clinical interventions were made according to clinical practice. Results A total of 112 patients were enrolled in the study; 56 belonged to the ‘no concomitant PPIs’ group and 56 to the ‘concomitant PPIs’ group. Seventy-one patients were endocrine-sensitive and received palbociclib and letrozole, and 43 were endocrine-resistant and were treated with palbociclib and fulvestrant. The most prescribed PPI was lansoprazole. Patients taking PPIs had a shorter PFS than those taking palbociclib and endocrine therapy alone (14.0 versus 37.9 months, P < 0.0001). Multivariate analysis confirmed concomitant PPIs as the only independent predictive factor for shorter PFS (P = 0.0002). PFS was significantly longer in estrogen-sensitive mBC with no concomitant PPIs compared with patients taking PPIs or estrogen-resistant patients, with and without PPIs (P < 0.0001). No correlation with adverse events was found when considering grade >2 hematological toxicities [Common Terminology Criteria for Adverse Events (CTCAE) scale]. Conclusions The present study demonstrates that concomitant use of PPIs in mBC patients treated with palbociclib has a detrimental effect on PFS. Therefore, it is recommended to prescribe PPIs with caution in these patients, strictly adhering to the indications in the summary of product characteristics (RCP). PPIs are widely used in cancer patients to manage chemotherapy-related gastrointestinal adverse events. Palbociclib is a weak base with a pH-dependent solubility. Breast cancer patients treated with palbociclib and PPIs have significantly shorter PFS. Drug-drug interactions should be clearly evaluated in patients taking PPIs.
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Salehi N, Kuminek G, Al-Gousous J, Sperry DC, Greenwood DE, Waltz NM, Amidon GL, Ziff RM, Amidon GE. Improving Dissolution Behavior and Oral Absorption of Drugs with pH-Dependent Solubility Using pH Modifiers: A Physiologically Realistic Mass Transport Analysis. Mol Pharm 2021; 18:3326-3341. [PMID: 34428047 DOI: 10.1021/acs.molpharmaceut.1c00262] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Orally dosed drugs must dissolve in the gastrointestinal (GI) tract before being absorbed through the epithelial cell membrane. In vivo drug dissolution depends on the GI tract's physiological conditions such as pH, residence time, luminal buffers, intestinal motility, and transit and drug properties under fed and fasting conditions (Paixão, P. et al. Mol. Pharm. 2018 and Bermejo, et al. M. Mol. Pharm. 2018). The dissolution of an ionizable drug may benefit from manipulating in vivo variables such as the environmental pH using pH-modifying agents incorporated into the dosage form. A successful example is the use of such agents for dissolution enhancement of BCS class IIb (high-permeability, low-solubility, and weak base) drugs under high gastric pH due to the disease conditions or by co-administration of acid-reducing agents (i.e., proton pump inhibitors, H2-antagonists, and antacids). This study provides a rational approach for selecting pH modifiers to improve monobasic and dibasic drug compounds' dissolution rate and extent under high-gastric pH dissolution conditions, since the oral absorption of BCS class II drugs can be limited by either the solubility or the dissolution rate depending on the initial dose number. Betaine chloride, fumaric acid, and tartaric acid are examples of promising pH modifiers that can be included in oral dosage forms to enhance the rate and extent of monobasic and dibasic drug formulations. However, selection of a suitable pH modifier is dependent on the drug properties (e.g., solubility and pKa) and its interplay with the pH modifier pKa or pKas. As an example of this complex interaction, for basic drugs with high pKa and intrinsic solubility values and large doses, a polyprotic pH modifier can be expected to outperform a monoacid pH modifier. We have developed a hierarchical mass transport model to predict drug dissolution of formulations under varying pH conditions including high gastric pH. This model considers the effect of physical and chemical properties of the drug and pH modifiers such as pKa, solubility, and particle size distribution. This model also considers the impact of physiological conditions such as stomach emptying rate, stomach acid and buffer secretion, residence time in the GI tract, and aqueous luminal volume on drug dissolution. The predictions from this model are directly applicable to in vitro multi-compartment dissolution vessels and are validated by in vitro experiments in the gastrointestinal simulator. This model's predictions can serve as a potential data source to predict plasma concentrations for formulations containing pH modifiers administered under the high-gastric pH conditions. This analysis provides an improved formulation design procedure using pH modifiers by minimizing the experimental iterations under both in vitro and in vivo conditions.
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Affiliation(s)
- Niloufar Salehi
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Gislaine Kuminek
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States.,Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - Jozef Al-Gousous
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States.,Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University Mainz, Mainz 55128, Germany
| | - David C Sperry
- Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - Dale E Greenwood
- Synthetic Molecule Design & Development, Lilly Research Laboratories, Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - Nicholas M Waltz
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States.,College of Pharmacy, Ohio State University, Columbus, Ohio 43210, United States
| | - Gordon L Amidon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Robert M Ziff
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Gregory E Amidon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
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Impact of pharmacist consultation at clinical trial inclusion: an effective way to reduce drug-drug interactions with oral targeted therapy. Cancer Chemother Pharmacol 2021; 88:723-729. [PMID: 34286354 DOI: 10.1007/s00280-021-04331-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/10/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE Pharmacist consultation is unfrequently performed in oncology clinical trials that include patients who often have many co-treatments increasing the risk of drug-drug interactions (DDI). The aim of this study was to determine whether best possible medication history (BPMH) by hospital pharmacist at inclusion and therapeutic drug monitoring could be used for DDI risk evaluation and for current oral targeted therapy management. METHODS A prospective clinical trial (ALCINA 2, NCT04025541) was carried out in metastatic breast cancer cohort treated by palbociclib to conduct pharmacokinetics-toxicity correlation study. BPMH was prospectively performed by the hospital pharmacist at each trial inclusion, followed by a contact to the patient's community pharmacy to complete the collected data. Pharmacokinetic analysis was performed on blood samples collected at day 15 of cycle 1 of palbociclib treatment. RESULTS Pharmacist interventions indicated that at inclusion, current medications were incomplete for 63% of the enrolled patients (32/51). It allowed the real-time management of high-risk DDI detected in third of patients. The palbociclib Ctrough geometric median (min-max) was significantly higher in cohort with potential DDI [106 ng/mL (66.7-113)], than cohort without potential DDI [70.1 ng/mL (54.1-89.7)], p = 0.0284. CONCLUSION This is the first prospective study evaluating the relevance of proactive BPMH by pharmacist with contact to the community pharmacy during the inclusion step of a clinical trial to ensure the efficacy and safety of the investigated drug. This investigation was thus able to highlight the statistically significant impact of these DDI on palbociclib plasma concentration variation during the clinical trial. TRIAL REGISTRATION Clinicaltrials.gov identifier NCT04025541.
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Murakami T, Bodor E, Bodor N. Factors and dosage formulations affecting the solubility and bioavailability of P-glycoprotein substrate drugs. Expert Opin Drug Metab Toxicol 2021; 17:555-580. [PMID: 33703995 DOI: 10.1080/17425255.2021.1902986] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Introduction: Expression of P-glycoprotein (P-gp) increases toward the distal small intestine, implying that the duodenum is the preferential absorption site for P-gp substrate drugs. Oral bioavailability of poorly soluble P-gp substrate drugs is low and varied but increases with high-fat meals that supply lipoidal components and bile in the duodenum.Areas covered: Absorption properties of P-gp substrate drugs along with factors and oral dosage formulations affecting their solubility and bioavailability were reviewed with PubMed literature searches. An overview is provided from the viewpoint of the 'spring-and-parachute approach' that generates supersaturation of poorly soluble P-gp substrate drugs.Expert opinion: The oral bioavailability of P-gp substrate drugs is difficult to predict because of their low solubility, preferential absorption sites, and overlapping substrate specificities with CYP3A4, along with the scattered intestinal P-gp expression/function. To attain high and steady oral bioavailability of poorly soluble P-gp substrate drugs, physicochemical modification of drugs to improve solubility, or oral dosage formulations that generate long-lasting supersaturation in the duodenum, is preferred. In particular, supersaturable lipid-based drug delivery systems that can increase passive diffusion and/or lymphatic absorption are effective and applicable to many poorly soluble P-gp substrate drugs.
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Affiliation(s)
| | | | - Nicholas Bodor
- Bodor Laboratories, Miami, Florida, USA.,College of Pharmacy, University of Florida, Gainesville, Florida, USA
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36
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Blaesi AH, Saka N. Expandable, dual-excipient fibrous dosage forms for prolonged delivery of sparingly soluble drugs. Int J Pharm 2021; 615:120396. [PMID: 33716100 DOI: 10.1016/j.ijpharm.2021.120396] [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: 07/29/2020] [Revised: 02/06/2021] [Accepted: 02/14/2021] [Indexed: 10/21/2022]
Abstract
In this work, the rates of expansion and drug release by fibrous dosage forms with two excipients are investigated for prolonged delivery of sparingly soluble drugs. The formulation consisted of ibuprofen drug, high-molecular-weight hydroxypropyl methyl cellulose (HPMC) excipient, and the enteric methacrylic acid-ethyl acrylate excipient. Upon immersion in a dissolution fluid, the single fibers and all dosage forms (fiber volume fractions, φ = 0.16, 0.39, and 0.56) expanded proportional to the square-root of time, a characteristic of diffusion-controlled processes. The size of the dosage forms doubled in ten minutes, and they were converted into a highly viscous gel that was stabilized by the enteric excipient for over two days. Eighty percent of the drug was released from single fibers in less than an hour, but in thirty-eight hours from the dosage form with φ = 0.56. Theoretical models suggest that if φ is small, drug release is limited by drug diffusion through the thin fibers. But if φ is very large, drug release is determined by diffusion through the thick, viscous dosage form gel. Between these extremes the drug release time increases exponentially with φ.
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Affiliation(s)
- Aron H Blaesi
- Enzian Pharmaceutics Aron H. Blaesi, CH-7078 Lenzerheide, Switzerland; Enzian Pharmaceutics, Inc., Cambridge, MA 02139, USA.
| | - Nannaji Saka
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Proton Pump Inhibitors and Oncologic Treatment Efficacy: A Practical Review of the Literature for Oncologists. ACTA ACUST UNITED AC 2021; 28:783-799. [PMID: 33546228 PMCID: PMC7985775 DOI: 10.3390/curroncol28010076] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 12/29/2020] [Accepted: 01/07/2021] [Indexed: 12/19/2022]
Abstract
Proton pump inhibitors (PPIs) are the most commonly used anti-acid drugs worldwide, including among cancer patients. However, drug-drug interactions between PPIs and other agents may lead to decreased drug absorption with possible reduced therapeutic benefit, or even increased toxicity. Unfortunately, only scarce data exist regarding the safety of concomitant PPI use with anti-cancer agents. We aim at reviewing current evidence on this possible interaction by dividing anti-cancer agents by class. Until further data is available, we encourage healthcare providers to limit unnecessary PPI overuse.
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Matsumura N, Ono A, Akiyama Y, Fujita T, Sugano K. Bottom-Up Physiologically Based Oral Absorption Modeling of Free Weak Base Drugs. Pharmaceutics 2020; 12:E844. [PMID: 32899235 PMCID: PMC7558956 DOI: 10.3390/pharmaceutics12090844] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 12/20/2022] Open
Abstract
In this study, we systematically evaluated "bottom-up" physiologically based oral absorption modeling, focusing on free weak base drugs. The gastrointestinal unified theoretical framework (the GUT framework) was employed as a simple and transparent model. The oral absorption of poorly soluble free weak base drugs is affected by gastric pH. Alternation of bulk and solid surface pH by dissolving drug substances was considered in the model. Simple physicochemical properties such as pKa, the intrinsic solubility, and the bile micelle partition coefficient were used as input parameters. The fraction of a dose absorbed (Fa) in vivo was obtained by reanalyzing the pharmacokinetic data in the literature (15 drugs, a total of 85 Fa data). The AUC ratio with/without a gastric acid-reducing agent (AUCr) was collected from the literature (22 data). When gastric dissolution was neglected, Fa was underestimated (absolute average fold error (AAFE) = 1.85, average fold error (AFE) = 0.64). By considering gastric dissolution, predictability was improved (AAFE = 1.40, AFE = 1.04). AUCr was also appropriately predicted (AAFE = 1.54, AFE = 1.04). The Fa values of several drugs were slightly overestimated (less than 1.7-fold), probably due to neglecting particle growth in the small intestine. This modeling strategy will be of great importance for drug discovery and development.
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Affiliation(s)
- Naoya Matsumura
- Minase Research Institute, Ono Pharmaceutical Co., Ltd., 3-1-1 Sakurai, Shimamoto-cho, Mishima-gun, Osaka 618-8585, Japan
| | - Asami Ono
- Laboratory for Chemistry, Manufacturing, and Control, Pharmaceuticals Production & Technology Center, Asahi Kasei Pharma Corporation, 632-1 Mifuku, Izunokuni, Shizuoka 410-2321, Japan;
| | - Yoshiyuki Akiyama
- Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan;
| | - Takuya Fujita
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan;
| | - Kiyohiko Sugano
- Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan;
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Wu Y, Zhang Y, Pi H, Sheng Y. Current Therapeutic Progress of CDK4/6 Inhibitors in Breast Cancer. Cancer Manag Res 2020; 12:3477-3487. [PMID: 32523378 PMCID: PMC7237121 DOI: 10.2147/cmar.s250632] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/16/2020] [Indexed: 12/11/2022] Open
Abstract
The clinical use of selective cyclin-dependent kinase (CDK) 4/6 inhibitors has significantly improved the prognosis of patients with hormone receptor (HR)-positive human epidermal growth factor receptor 2 (HER2)-negative advanced or metastatic breast cancer (ABC/mBC), which almost achieved the double progression-free survival (PFS) in combination with endocrine therapy (ET) compared with ET alone. To date, there are 3 CDK4/6 inhibitors (palbociclib, ribocilcib and abemaciclib) approved by the US Food and Drug Administration (FDA) and European Medicines Agency (EMA) to treat patients with HR+/HER2-ABC/mBC in the first and later lines. The aim of this review is to summarize the current clinical use and ongoing clinical trials of CDK4/6 inhibitors, the published overall survival data, and the potential biomarkers and resistance to CDK4/6 inhibitors.
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Affiliation(s)
- Yanmei Wu
- Department of Breast and Thyroid Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, People's Republic of China
| | - Yu Zhang
- Medical Affairs, Pfizer Biopharmaceutical Group, Shanghai 200041, People's Republic of China
| | - Hao Pi
- Department of Breast and Thyroid Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, People's Republic of China
| | - Yuan Sheng
- Department of Breast and Thyroid Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, People's Republic of China
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Raoul JL, Edeline J, Gilabert M, Senellart H, Frenel JS. [Proton pump inhibitors and cancers: A hazardous association?]. Bull Cancer 2020; 107:458-464. [PMID: 32057465 DOI: 10.1016/j.bulcan.2019.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/02/2019] [Accepted: 12/09/2019] [Indexed: 12/23/2022]
Abstract
Proton pump inhibitors, a major progress in gastro-enterology, are globally among the most widely prescribed drugs. But, due to their strong gastric acid inhibition, they can be responsible for side effects, particularly in cancer patients. They are involved in renal function impairment, bone fractures, digestive bacterial overgrowth, particularlyclostridium difficile infections, anemia and hypomagnesemia. Long term use can increase the risks of gastric, pancreatic and liver cancers. They decrease absorption of weak bases drugs, particularly tyrosine kinase inhibitors and capecitabine and are responsible for a poorer prognosis if taken concomitantly with erlotinib, gefitinib and pazopanib. Modification of cyclin dependent kinases is also possible as well as decrease of efficacy of immune check point inhibitors (microbiome modifications). Absoption and efficacy of capecitabine seem also poorer with negative prognosis effect on treatment of gastric and colon cancer. Their long term use, particularly in cancer patients, should probably be avoided.
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Affiliation(s)
- Jean-Luc Raoul
- Institut de cancérologie de l'Ouest, département d'oncologie médicale, boulevard Professeur Jacques-Monod, 44800 Saint-Herblain, France.
| | - Julien Edeline
- Centre E Marquis, département d'oncologie médicale, avenue de la Bataille Flandres-Dunkerque, 35000 Rennes, France
| | - Marine Gilabert
- Institut Paoli-Calmettes, département d'oncologie médicale, 232, boulevard de Sainte-Marguerite, 13009 Marseille, France
| | - Hélène Senellart
- Institut de cancérologie de l'Ouest, département d'oncologie médicale, boulevard Professeur Jacques-Monod, 44800 Saint-Herblain, France
| | - Jean-Sébastien Frenel
- Institut de cancérologie de l'Ouest, département d'oncologie médicale, boulevard Professeur Jacques-Monod, 44800 Saint-Herblain, France
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Zhu H, Chen X, Ahmed M, Wang Y, Liu Q, Uppoor RS, Kuemmel C, Mehta M. A Proposal of Conducting Bioequivalence Trials with Gastric pH Modulators for Two Oral Formulations Demonstrating Different Dissolution Profiles at Elevated pH. Clin Transl Sci 2019; 12:564-572. [PMID: 31169344 PMCID: PMC6853150 DOI: 10.1111/cts.12658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 05/31/2019] [Indexed: 12/02/2022] Open
Abstract
In this paper, a special case for bioequivalence evaluation of oral formulations is discussed. Drug formulations with different forms of active moieties (e.g., free base and salt) may yield different dissolution characteristics and, thus, differ in absorption at elevated gastric pH. However, routine bioequivalence trials using subjects with normal gastric pH (i.e., ~ 1) may fail to identify these differences because dissolution/absorption profiles of the two formulations at normal gastric pH are similar. In the case of palbociclib, it is confirmedthat the free base and salt formulations showed different absorption in patients with different gastric pH. Significant reduction in drug absorption was observed only in patients with elevated gastric pH using free base formulation. The discovery that the free base had significantly reduced absorption hinged on the inclusion of enough patients with elevated gastric pH to detect a difference in a bioequivalence trial. This raises a concern, as demonstrated through simulation, that dissolution/absorption differences in other formulations could be missed in routine bioequivalence trials. Aside from differences in active pharmaceutical ingredients (APIs), other factors, such as changes in excipients or manufacturing methods, may also lead to exposure differences between formulations at elevated gastric pH. For formulations containing different forms of the same active moiety or the same API and showing different dissolution profiles at elevated pH (i.e., pH ~ 4–6.8), evaluation of bioequivalence with gastric pH modulators (e.g., a H2 blocker) in addition to routine bioequivalence assessments may help to ensure therapeutic equivalence in patients with elevated gastric pH.
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Affiliation(s)
- Hao Zhu
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Xiaomei Chen
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Mariam Ahmed
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Yaning Wang
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Qi Liu
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Ramana S Uppoor
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Colleen Kuemmel
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Mehul Mehta
- Office of Clinical Pharmacology, Office of Translational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
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Bellet M, Ahmad F, Villanueva R, Valdivia C, Palomino-Doza J, Ruiz A, Gonzàlez X, Adrover E, Azaro A, Valls-Margarit M, Parra JL, Aguilar J, Vidal M, Martín A, Gavilá J, Escrivá-de-Romaní S, Perelló A, Hernando C, Lahuerta A, Zamora P, Reyes V, Alcalde M, Masanas H, Céliz P, Ruíz I, Gil M, Seguí MÀ, de la Peña L. Palbociclib and ribociclib in breast cancer: consensus workshop on the management of concomitant medication. Ther Adv Med Oncol 2019; 11:1758835919833867. [PMID: 31205497 PMCID: PMC6535716 DOI: 10.1177/1758835919833867] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 01/23/2019] [Indexed: 12/11/2022] Open
Abstract
Drug-drug interactions are of significant concern in clinical practice in oncology, particularly in patients receiving Cyclin-dependent kinase (CDK) 4/6 inhibitors, which are typically exposed to long-term regimens. This article presents the highlights from the 'First Workshop on Pharmacology and Management of CDK4/6 Inhibitors: Consensus about Concomitant Medications'. The article is structured into two modules. The educational module includes background information regarding drug metabolism, corrected QT (QTc) interval abnormalities, management of psychotropic drugs and a comprehensive review of selected adverse effects of palbociclib and ribociclib. The collaborative module presents the conclusions of the five working groups, each of which comprised five experts from different fields. From these conclusions positive lists of drugs for treating common comorbid conditions that can be safely administered concomitantly with palbociclib and/or ribociclib were developed.
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Affiliation(s)
- Meritxell Bellet
- Vall d’Hebron University Hospital and Vall d’Hebron Institute of Oncology, Passeig Vall d’Hebron 119–129, Barcelona, Spain
| | - Faten Ahmad
- Vall d’Hebron Research Institute, Vall d’Hebron University Hospital, Barcelona, Spain
| | - Rafael Villanueva
- Institut Català d’Oncologia, Hospital Moisès Broggi, Barcelona, Spain
| | | | - Julián Palomino-Doza
- Hereditary Cardiopathies Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ada Ruiz
- Institut de Neuropsiquiatria i Addiccions, Hospital del Mar, and Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Xavier Gonzàlez
- Instituto Oncológico Dr Rosell, Hospital General De Catalunya, SOLTI, Barcelona, Spain
| | - Encarna Adrover
- Servicio de Oncología Médica, Complejo Hospital Universitario Albacete, Albacete, Spain
| | - Analía Azaro
- Medical Oncology Department, Vall d’Hebron University Hospital and Vall d’Hebron Institute of Oncology. Barcelona, Spain
| | | | | | - Juan Aguilar
- Medical Oncology Department and Infectious Diseases Department, Vall d’Hebron University Hospital, Barcelona, Spain
| | - Maria Vidal
- Hospital Clínic Barcelona and Translational Genomics and Targeted Therapeutics in Solid Tumors Group, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Anastasi Martín
- Unitat de Cures Palliatives, Vall d’Hebron University Hospital, Barcelona, Spain
| | - Joaquín Gavilá
- Fundacion Instituto Valenciano De Oncologia, Valencia, Spain
| | | | - Antonia Perelló
- Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Cristina Hernando
- Hospital Clínico Universitario de Valencia, INCLIVA Institut d’Investigació Sanitària and Centro de Investigación Biomédica en Red Cáncer, Valencia, Spain
| | | | - Pilar Zamora
- Servicio de Oncologia Médica, Hospital Universitario La Paz, Madrid, Spain
| | - Victoria Reyes
- Radiation Oncology Department, Vall d’Hebron University Hospital, Barcelona, Spain
| | - María Alcalde
- Vall d’Hebron Research Institute, Vall d’Hebron University Hospital, Barcelona, Spain
| | | | | | - Isabel Ruíz
- Vall d’Hebron Research Institute, Vall d’Hebron University Hospital, Barcelona, Spain
| | - Miguel Gil
- Institut Català d’Oncologia, IDIBELL Institut d’Investigació Biomédica de Bellvitge, L’Hospitalet, Barcelona, Spain
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Drug-drug interactions in breast cancer patients treated with CDK4/6 inhibitors. Cancer Treat Rev 2019; 74:21-28. [PMID: 30685576 DOI: 10.1016/j.ctrv.2019.01.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 12/19/2022]
Abstract
CDK4/6 inhibitors are a new class of anticancer drugs used for the treatment of women with hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced or metastatic breast cancer with disease progression following endocrine therapy. Polypharmacy is a well-known problem in advanced cancer causing potential drug-drug interactions (DDIs), which, in turn, may limit the therapeutic value of CDK4/6 inhibitors. Therefore, understanding the mechanisms underlying potential DDIs in patients taking CDK4/6 inhibitors may be useful in decision-making processes and represent an important step towards treatment personalization. The present review is aimed at describing the potential DDIs that might occur in breast cancer patients receiving CDK4/6 inhibitors based on direct evidence from the literature and mechanistic considerations tailored on specific class of drugs used in combination.
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Choo JRE, Lee SC. CDK4-6 inhibitors in breast cancer: current status and future development. Expert Opin Drug Metab Toxicol 2018; 14:1123-1138. [PMID: 30360668 DOI: 10.1080/17425255.2018.1541347] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Aberrant cellular proliferation due to dysregulation of the cyclin-dependent kinase (CDK) retinoblastoma (Rb)-pathway occurs in several cancers. Selective inhibition of CDK4/6 is an attractive target particularly in hormone-receptor positive (HR+) metastatic breast cancer (MBC), where it has transformed the treatment of these cancers in recent years. Three CDK4/6 inhibitors, palbociclib, ribociclib, and abemaciclib, have been approved for the treatment of HR+, HER2 negative (HER2-) MBC. Areas covered: We reviewed and compared the pharmacology, clinical efficacy, and toxicity profiles of the three CDK4/6 inhibitors and discussed several challenges in the use of these drugs, particularly in identifying biomarkers, optimizing dosing strategies, and finding best combinations with other therapies. Expert opinion: All three CDK4/6 inhibitors have shown remarkable efficacy when added to endocrine therapy in the treatment of HR+/HER2- MBC with consistent improvements in progression-free survival across all phase III trials. As efficacy appears similar between the drugs, differences in toxicities, dosing schedule, and monitoring requirements may influence the choice of CDK4/6 inhibitor. There is a paucity of predictive biomarkers that have been identified thus far, but a few promising biomarkers have been studied in the preclinical setting and results of ongoing clinical studies are awaited to validate their utility.
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Affiliation(s)
- Joan Rou-En Choo
- a Department of Haematology-Oncology , National University Cancer Institute, National University Health System (NUHS) , Singapore , Singapore
| | - Soo-Chin Lee
- a Department of Haematology-Oncology , National University Cancer Institute, National University Health System (NUHS) , Singapore , Singapore.,b Cancer Science Institute , Singapore , Singapore
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Kashihara Y, Terao Y, Yoda K, Hirota T, Kubota T, Kimura M, Matsuki S, Hirakawa M, Irie S, Ieiri I. Effects of magnesium oxide on pharmacokinetics of L-dopa/carbidopa and assessment of pharmacodynamic changes by a model-based simulation. Eur J Clin Pharmacol 2018; 75:351-361. [DOI: 10.1007/s00228-018-2568-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/27/2018] [Indexed: 10/28/2022]
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Orbaugh K, Ryan JC, Pfeuffer L. Palbociclib Plus Letrozole for the Treatment of Metastatic Breast Cancer: An Illustrative Case Scenario. J Adv Pract Oncol 2016; 7:550-561. [PMID: 29282430 PMCID: PMC5737402 DOI: 10.6004/jadpro.2016.7.5.7] [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] [Indexed: 11/17/2022] Open
Abstract
CASE STUDY Betty, a 66-year-old white female, was diagnosed with stage IIB, T2N1M0, estrogen receptor/progesterone receptor-positive, HER2-negative breast cancer in 2007. It was detected on screening mammography when she was age 59, and she was confirmed to be postmenopausal at the time. She has no family history of breast cancer. Betty has never smoked but enjoys drinking alcohol, normally with dinner and typically limited to 1 drink of hard liquor per day. Her medical history includes type 2 diabetes mellitus and hypertension, which are adequately controlled with metformin and lisinopril. Betty is married and a retired teacher. She has four healthy adult children and five grandchildren. She noted that although she was always thin as a child, she was never able to lose the weight she gained during her pregnancies. Currently, her body mass index (BMI) is around 29 kg/m2. She enjoys ballroom dancing with her husband, gardening, and walking her dog and she is an active member at her church. Betty and her family were shocked to hear about her diagnosis. After a discussion with her oncologist, a treatment plan was devised. Her Eastern Cooperative Oncology Group performance status at diagnosis was 0. Initial treatment consisted of neoadjuvant chemotherapy with dose-dense doxorubicin/cyclophosphamide (AC) × 4 cycles followed by weekly paclitaxel × 12 cycles. Betty tolerated treatment relatively well. However, she was hospitalized once after cycle 3 of AC for neutropenic fever. Her subsequent cycle was followed with pegfilgrastim. Repeat imaging after AC treatment revealed a good overall response. Other adverse effects from treatment included fatigue and nausea for a few days after each cycle. Residual grade 1 neuropathy secondary to her treatment with paclitaxel, with a potential contribution from her history of diabetes, was a long-term complication. Following completion of her neoadjuvant therapy, she had a lumpectomy and then radiation therapy. Adjuvant endocrine therapy with the aromatase inhibitor (AI) anastrozole was given for 5 years, which she completed in late 2012. Bone health was monitored with dual-energy x-ray absorptiometry screening. Mild osteopenia was noted during AI therapy, and she was given twice-daily calcium plus vitamin D supplementation. Annual surveillance diagnostic breast mammography along with biannual history and physical examinations showed no signs of disease recurrence.
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Affiliation(s)
- Kristi Orbaugh
- 1Community Hospital Oncology Physicians, Zionsville, Indiana; 2Pfizer Inc, New York, New York; 3Allegheny Health Network Cancer Institute, Pittsburgh, Pennsylvania
| | - Joanne C Ryan
- 1Community Hospital Oncology Physicians, Zionsville, Indiana; 2Pfizer Inc, New York, New York; 3Allegheny Health Network Cancer Institute, Pittsburgh, Pennsylvania
| | - Lynn Pfeuffer
- 1Community Hospital Oncology Physicians, Zionsville, Indiana; 2Pfizer Inc, New York, New York; 3Allegheny Health Network Cancer Institute, Pittsburgh, Pennsylvania
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