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Knight W, Margaryan T, Sanai N, Tovmasyan A. A validated LC-MS/MS method for determination of neuro-pharmacokinetic behavior of niraparib in brain tumor patients. J Pharm Biomed Anal 2024; 245:116150. [PMID: 38657366 DOI: 10.1016/j.jpba.2024.116150] [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: 02/12/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/26/2024]
Abstract
Niraparib is a potent and orally bioavailable inhibitor of poly (ADP-ribose) polymerase (PARP) with high specificity for isoforms 1 and 2. It has been approved by the U.S. Food and Drug Administration for ovarian cancer maintenance therapy and is currently under development for various cancers, including glioblastoma. To assess central nervous system (CNS) penetration of niraparib in glioblastoma patients, a novel bioanalytical method was developed to measure total and unbound niraparib levels in human brain tumor tissue and cerebrospinal fluid (CSF). The method was validated using plasma as a surrogate matrix over the concentration range of 1-10,000 nM on an LC-MS/MS system. The MS/MS detection was conducted in positive electrospray ionization mode, while chromatography was performed using a Kinetex™ PS C18 column with a total 3.5-minute gradient elution run time. The maximum coefficient of variation for both intra- and inter-day precision was 10.6%, with accuracy ranging from 92.8% - 118.5% across all matrices. Niraparib was stable in human brain homogenate for at least 6 hours at room temperature (RT) and 32 days at -20°C, as well as in stock and working solutions for at least 21 hours (RT) and 278 days (4°C). Equilibrium dialysis experiments revealed the fractions unbound of 0.05 and 0.16 for niraparib in human brain and plasma, respectively. The validated method is currently employed to assess niraparib levels in human glioblastoma tissue, CSF, and plasma in an ongoing trial on newly diagnosed glioblastoma and recurrent IDH1/2(+) ATRX mutant glioma patients (NCT05076513). Initial results of calculated total (Kp) and unbound (Kp,uu) tumor-to-plasma partition coefficients indicate significant brain penetration ability of niraparib in glioblastoma patients.
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Affiliation(s)
- William Knight
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ 85013, USA
| | - Tigran Margaryan
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ 85013, USA
| | - Nader Sanai
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ 85013, USA
| | - Artak Tovmasyan
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ 85013, USA.
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Meertens M, de Vries N, Rosing H, Steeghs N, Beijnen JH, Huitema ADR. Analytical Validation of a Volumetric Absorptive Microsampling Method for Therapeutic Drug Monitoring of the Oral Targeted Anticancer Agents, Abiraterone, Alectinib, Cabozantinib, Imatinib, Olaparib, and Sunitinib, and Metabolites. Ther Drug Monit 2024:00007691-990000000-00187. [PMID: 38321598 DOI: 10.1097/ftd.0000000000001175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/22/2023] [Indexed: 02/08/2024]
Abstract
BACKGROUND Volumetric Absorptive Microsampling (VAMS) is a useful tool for therapeutic drug monitoring (TDM) of oral targeted anticancer agents. VAMS aims to improve safety and efficacy by enabling at-home blood sample collection by patients. This study aimed to develop and validate an ultra-high performance liquid chromatography-tandem mass spectrometry method for the quantitative determination of abiraterone, alectinib, cabozantinib, imatinib, olaparib, sunitinib, and the metabolites, Δ(4)-abiraterone (D4A), alectinib-M4, imatinib-M1, and N-desethyl sunitinib, in dried whole blood samples using VAMS to support TDM. METHODS After the collection of 10 μL of whole blood sample using the VAMS device, the analytes were extracted from the tip using methanol with shaking, evaporated, and reconstituted in acetonitrile:0.1 mol/L ammonium hydroxide in water (1:1, vol/vol). The extracts were then analyzed using ultra-high performance liquid chromatography-tandem mass spectrometry. Validation experiments based on the ICH M10 guideline were carried out, and stability was evaluated under shipping and storage conditions. VAMS specimens were collected in the outpatient clinic to demonstrate the applicability of the assay. RESULTS The validated range of the method was considered accurate and precise for all analytes. Accordingly, the validation experiments met the relevant requirements, except for cross-analyte interference. Based on the stability data, shipment can be performed at room temperature within 14 days after sample collection and the VAMS specimen can be stored up to 9 months at -20 and -70°C. Samples from 59 patients were collected at the hospital. CONCLUSIONS The developed method could be used to successfully quantify the concentrations of abiraterone, D4A, alectinib, alectinib-M4, cabozantinib, imatinib, imatinib-M1, olaparib, sunitinib, and N-desethyl sunitinib within the validated range using VAMS. Therefore, the method can be used to estimate the dried whole blood-to-plasma ratios for TDM in the clinic.
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Affiliation(s)
- Marinda Meertens
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Niels de Vries
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Hilde Rosing
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Neeltje Steeghs
- Department of Medical Oncology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Jos H Beijnen
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht, the Netherlands; and
- Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
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Yasu T, Nishijima R, Ikuta R, Shirota M, Iwase H. Development of a simple high-performance liquid chromatography-ultraviolet detection method for olaparib in patients with ovarian cancer. Drug Discov Ther 2024; 17:428-433. [PMID: 38044120 DOI: 10.5582/ddt.2023.01074] [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] [Indexed: 12/05/2023]
Abstract
Olaparib is a small-molecule inhibitor of poly(ADP)-ribose polymerase (PARP) used as maintenance therapy for recurrent ovarian cancer and newly diagnosed advanced ovarian cancer after initial chemotherapy. An exposure-toxicity correlation has been reported between the probability of anemia, a common adverse event associated with olaparib, and the steady-state minimum plasma concentration (Cmin) as well as the predicted maximum plasma concentration (Cmax). On the other hand, olaparib exhibits high interpatient variability with regard to the area under the concentration-time curve, Cmax, and Cmin. Therefore, we developed a simple and sensitive assay based on high-performance liquid chromatography with ultraviolet light (HPLC-UV) for the therapeutic drug monitoring of olaparib. The analysis was performed on an octadecylsilyl column with a mobile phase consisting of 0.5% KH2PO4 (pH 4.5) and acetonitrile (71:29, v/v), at a flow rate of 0.8 mL/min. Olaparib and an internal standard (imatinib) were well separated from the co-extracted material, with retention times of 13.6 and 11.5 min, respectively. The calibration curve for olaparib showed linearity over the concentration range of 0.10-10.0 μg/mL (r2 = 0.9998). The intra- and inter- day validation coefficients ranged from 1.79 to 4.13% and 1.37 to 3.55%, respectively. Measurement accuracy ranged from - 6.07 to 3.26%, with a recovery rate of more than 91.06%. The developed method was then applied to evaluate the plasma olaparib concentrations in patients with ovarian cancer. Our findings demonstrate that HPLC-UV is an economical, simple, and sensitive method for clinical application and holds promise for the effective drug monitoring of olaparib during ovarian cancer treatment.
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Affiliation(s)
- Takeo Yasu
- Department of Medicinal Therapy Research, Pharmaceutical Education and Research Center, Meiji Pharmaceutical University, Tokyo, Japan
- Department of Pharmacy, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
- Bokutoh Hospital-Meiji Pharmaceutical University Joint Research Center, Tokyo, Japan
| | - Ryosuke Nishijima
- Department of Medicinal Therapy Research, Pharmaceutical Education and Research Center, Meiji Pharmaceutical University, Tokyo, Japan
| | - Risa Ikuta
- Department of Clinical Laboratory, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
- Bokutoh Hospital-Meiji Pharmaceutical University Joint Research Center, Tokyo, Japan
| | - Mikio Shirota
- Department of Pharmacy, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
- Bokutoh Hospital-Meiji Pharmaceutical University Joint Research Center, Tokyo, Japan
| | - Haruko Iwase
- Department of Obstetrics and Gynecology, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
- Bokutoh Hospital-Meiji Pharmaceutical University Joint Research Center, Tokyo, Japan
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Wei Y, Liang H, Liu S, Guan S, Ma K, Guan Y, Chen Y, Huang M, Wang X, Lan C. Development and validation of a sensitive LC-MS/MS method for the assay of four PARP inhibitors in human plasma and its application in ovarian cancer patients. J Pharm Biomed Anal 2024; 237:115758. [PMID: 37832476 DOI: 10.1016/j.jpba.2023.115758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/11/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023]
Abstract
PARP inhibitors have demonstrated marked efficacy in ovarian cancer patients with BRCA1/2 loss-of-function mutations. In this study, we established and validated a liquid chromatography-tandem mass spectrometry (LC-MS/MS) based method to simultaneously quantify the four frequently prescripted PARP inhibitors, namely niraparib, olaparib,fluzoparib, and pamiparib, in ovarian cancer. The mobile phase was 50 % methanol with 0.1 % formic acid at a flow rate of 0.3 mL/min, within 8 min run time. Four PARP inhibitors were separated on a Hypersil GOLD™ aQ C18 Polar Endcapped LC column (50 × 2.1 mm, 1.9 µm) at 35 ℃ and subjected to mass analysis using positive electro-spray ionization (ESI). The linear range of this method was 10-2000 ng/mL, 25-5000 ng/mL, and 50-10,000 ng/mL for niraparib, olaparib and fluzoparib, and pamiparib, respectively, with the correlation coefficients (r2) ≥ 0.99. Accuracies ranged from 93.12 %-110.71 and the inter- and intra-batch precisions were less than 15 % for all analytes in quality control samples. There was no significant matrix effect. Twenty-eight plasma samples were obtained from Sun Yat-sen University Cancer Center. The mean plasma concentrations (±SD) of niraparib and olaparib were 424.76 (±228.35) ng/mL and 1760.47 (±1739.69) ng/mL, respectively. The validated LC-MS/MS method allows the convient and efficient determination of four PARP inhibitors' exposure levels in ovarian cancer patients.
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Affiliation(s)
- Yuru Wei
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China
| | - Haixi Liang
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shu Liu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shaoxing Guan
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China
| | - Kaiyun Ma
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China
| | - Yanping Guan
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China
| | - Youhao Chen
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China
| | - Min Huang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China
| | - Xueding Wang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510060, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510006, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, Guangdong Province, 510006, China.
| | - Chunyan Lan
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
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Talebi Z, Garrison DA, Eisenmann ED, Parmar K, Shapiro GI, Rudek MA, Sparreboom A, Jin Y. Exploring pharmacokinetics of talazoparib in ABCB1/ABCG2-deficient mice using a novel UHPLC-MS/MS method. Heliyon 2023; 9:e20972. [PMID: 37908705 PMCID: PMC10613910 DOI: 10.1016/j.heliyon.2023.e20972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/28/2023] [Accepted: 10/12/2023] [Indexed: 11/02/2023] Open
Abstract
A rapid, sensitive, and simple UHPLC-MS/MS method for the determination of the PARP inhibitor talazoparib in mouse plasma was developed and validated using [13C,2H4]-talazoparib as an internal standard (IS). The assay procedure involved extraction of talazoparib and the IS from plasma using a single-step deproteination and separation of the analytes was achieved on an ACQUITY UPLC RP18 HSS T3 column with a mobile phase gradient at a flow rate of 0.4 mL/min in a run time of 5 min. The calibration curve was linear (r2 > 0.99) over the concentration range of 0.5-100 ng/mL, and 10-fold dilution of samples could be accurately quantitated. The matrix effect and mean extraction recovery for talazoparib were between 93.7-109% and 87.7-105%, respectively. Precision and percent bias of quality control samples were always less than ±15%, indicating reproducibility and accuracy of the method. Talazoparib demonstrated bench-top stability at room temperature for 6 h, auto-sampler and reinjection stability at 4 °C for at least 24 h, and no significant degradation was observed after three freeze-thaw cycles. The developed method was successfully applied to pharmacokinetic studies involving serial blood sampling after oral administration of talazoparib to wild-type mice and animals with a genetic deficiency of the efflux transporters ABCB1 (P-gp) and ABCG2 (BCRP). Together, our results demonstrate the successful development of a suitable analytical method for talazoparib in mouse plasma and suggest that mice are a useful model to evaluate transporter-mediated drug-drug interactions involving therapy with talazoparib.
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Affiliation(s)
- Zahra Talebi
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Dominique A. Garrison
- Division of Clinical Pharmacology, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Eric D. Eisenmann
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Kalindi Parmar
- Center for DNA Damange and Repair, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Geoffrey I. Shapiro
- Center for DNA Damange and Repair, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Michelle A. Rudek
- Division of Clinical Pharmacology, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, MD, USA
| | - Alex Sparreboom
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Yan Jin
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, USA
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Overbeek JK, Guchelaar NAD, Mohmaed Ali MI, Ottevanger PB, Bloemendal HJ, Koolen SLW, Mathijssen RHJ, Boere IA, Hamberg P, Huitema ADR, Sonke GS, Opdam FL, Ter Heine R, van Erp NP. Pharmacokinetic boosting of olaparib: A randomised, cross-over study (PROACTIVE-study). Eur J Cancer 2023; 194:113346. [PMID: 37806255 DOI: 10.1016/j.ejca.2023.113346] [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: 08/03/2023] [Revised: 09/07/2023] [Accepted: 09/09/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND Pharmacokinetic (PK) boosting is the intentional use of a drug-drug interaction to enhance systemic drug exposure. PK boosting of olaparib, a CYP3A-substrate, has the potential to reduce PK variability and financial burden. The aim of this study was to investigate equivalence of a boosted, reduced dose of olaparib compared to the non-boosted standard dose. METHODS This cross-over, multicentre trial compared olaparib 300 mg twice daily (BID) with olaparib 100 mg BID boosted with the strong CYP3A-inhibitor cobicistat 150 mg BID. Patients were randomised to the standard therapy followed by the boosted therapy, or vice versa. After seven days of each therapy, dense PK sampling was performed for noncompartmental PK analysis. Equivalence was defined as a 90% Confidence Interval (CI) of the geometric mean ratio (GMR) of the boosted versus standard therapy area under the plasma concentration-time curve (AUC0-12 h) within no-effect boundaries. These boundaries were set at 0.57-1.25, based on previous pharmacokinetic studies with olaparib capsules and tablets. RESULTS Of 15 included patients, 12 were eligible for PK analysis. The GMR of the AUC0-12 h was 1.45 (90% CI 1.27-1.65). No grade ≥3 adverse events were reported during the study. CONCLUSIONS Boosting a 100 mg BID olaparib dose with cobicistat increases olaparib exposure 1.45-fold, compared to the standard dose of 300 mg BID. Equivalence of the boosted olaparib was thus not established. Boosting remains a promising strategy to reduce the olaparib dose as cobicistat increases olaparib exposure Adequate tolerability of the boosted therapy with higher exposure should be established.
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Affiliation(s)
- Joanneke K Overbeek
- Department of Pharmacy, Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands.
| | - Niels A D Guchelaar
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, the Netherlands
| | - Ma Ida Mohmaed Ali
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, North Holland, the Netherlands
| | - Petronella B Ottevanger
- Department of Medical Oncology, Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Haiko J Bloemendal
- Department of Medical Oncology, Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Stijn L W Koolen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, the Netherlands; Department of Hospital Pharmacy, Erasmus University Medical Center, Rotterdam, South Holland, the Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, the Netherlands
| | - Ingrid A Boere
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, South Holland, the Netherlands
| | - Paul Hamberg
- Department of Internal Medicine, Franciscus Gasthuis and Vlietland, Rotterdam, South Holland, the Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, North Holland, the Netherlands; Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, Utrecht, the Netherlands; Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, Utrecht, the Netherlands
| | - Gabe S Sonke
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, North Holland, the Netherlands
| | - Frans L Opdam
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, North Holland, the Netherlands
| | - Rob Ter Heine
- Department of Pharmacy, Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Nielka P van Erp
- Department of Pharmacy, Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
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van Eerden RAG, IJzerman NS, van Meekeren M, Oomen-de Hoop E, Guchelaar NAD, Visser AMW, Matic M, van Schaik RHN, de Bruijn P, Moes DJAR, Jobse PA, Gelderblom H, Huitema ADR, Steeghs N, Mathijssen RHJ, Koolen SLW. CYP3A4*22 Genotype-Guided Dosing of Kinase Inhibitors in Cancer Patients. Clin Pharmacokinet 2023; 62:1129-1139. [PMID: 37310647 PMCID: PMC10386914 DOI: 10.1007/s40262-023-01260-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2023] [Indexed: 06/14/2023]
Abstract
INTRODUCTION A genetic variant explaining a part of the exposure of many kinase inhibitors (KIs) is the single nucleotide polymorphism (SNP) CYP3A4*22, resulting in less CYP3A4 enzyme activity. The primary aim of this study was to investigate if the systemic exposure is non-inferior after a dose reduction of KIs metabolized by CYP3A4 in CYP3A4*22 carriers compared to patients without this SNP (i.e., wildtype patients) receiving the standard dose. METHODS In this multicenter, prospective, non-inferiority study, patients were screened for the presence of CYP3A4*22. Patients with the CYP3A4*22 SNP received a 20-33% dose reduction. At steady state, a pharmacokinetic (PK) analysis was performed and compared to the PK results from wildtype patients treated with the registered dose using a two-stage individual patient data meta-analysis approach. RESULTS In total, 207 patients were included in the final analysis. The CYP3A4*22 SNP was found in 16% of the patients in the final analysis (n = 34). Most of the included patients received imatinib (37%) or pazopanib (22%) treatment. The overall geometric mean ratio (GMR) comparing the exposure of the CYP3A4*22 carriers to the exposure of the wildtype CYP3A4 patients was 0.89 (90% confidence interval: 0.77-1.03). CONCLUSION Non-inferiority could not be proven for dose reduction of KIs metabolized by CYP3A4 in CYP3A4*22 carriers compared to the registered dose in wildtype patients. Therefore, an up-front dose reduction based upon the CYP3A4*22 SNP for all KIs does not seem an eligible new way of personalized therapy. TRIAL REGISTRATION International Clinical Trials Registry Platform Search Portal; number NL7514; registered 11/02/2019.
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Affiliation(s)
- Ruben A G van Eerden
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Nikki S IJzerman
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Milan van Meekeren
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Esther Oomen-de Hoop
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Niels A D Guchelaar
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Andrea M W Visser
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Maja Matic
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Ron H N van Schaik
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Peter de Bruijn
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Dirk-Jan A R Moes
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, The Netherlands
| | - Pieter A Jobse
- Department of Internal Medicine, ADRZ, Goes, The Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Neeltje Steeghs
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Stijn L W Koolen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, PO box 2040, 3000 CA, Rotterdam, The Netherlands.
- Department of Pharmacy, Erasmus University Medical Center, Rotterdam, The Netherlands.
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Canil G, Orleni M, Posocco B, Gagno S, Bignucolo A, Montico M, Roncato R, Corsetti S, Bartoletti M, Toffoli G. LC-MS/MS Method for the Quantification of PARP Inhibitors Olaparib, Rucaparib and Niraparib in Human Plasma and Dried Blood Spot: Development, Validation and Clinical Validation for Therapeutic Drug Monitoring. Pharmaceutics 2023; 15:pharmaceutics15051524. [PMID: 37242766 DOI: 10.3390/pharmaceutics15051524] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Poly (ADP-ribose) polymerase inhibitors (PARPis) are becoming increasingly meaningful in oncology, and their therapeutic drug monitoring (TDM) might be beneficial for patients. Several bioanalytical methods have been reported for PARPis quantification in human plasma, but advantages might be obtained using dried blood spot (DBS) as a sampling technique. Our aim was to develop and validate a liquid chromatography-tandem mass spectrometric (LC-MS/MS) method for olaparib, rucaparib, and niraparib quantification in both human plasma and DBS matrices. Additionally, we aimed to assess the correlation between the drug concentrations measured in these two matrices. DBS from patients was obtained using Hemaxis DB10 for volumetric sampling. Analytes were separated on a Cortecs-T3 column and detected with electrospray ionization (ESI)-MS in positive ionization mode. Validation was performed according to the latest regulatory guidelines, in the range (ng/mL) 140-7000 for olaparib, 100-5000 for rucaparib, and 60-3000 for niraparib, within the hematocrit (Hct) range 29-45%. The Passing-Bablok and Bland-Altman statistical analyses revealed a strong correlation between plasma and DBS for olaparib and niraparib. However, due to the limited amount of data, it was challenging to establish a robust regression analysis for rucaparib. To ensure a more reliable assessment, additional samples are required. The DBS-to-plasma ratio was used as a conversion factor (CF) without considering any patient-related hematological parameters. These results provide a solid basis for the feasibility of PARPis TDM using both plasma and DBS matrices.
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Affiliation(s)
- Giovanni Canil
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Marco Orleni
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
- Doctoral School in Pharmacological Sciences, University of Padua, 35131 Padova, Italy
| | - Bianca Posocco
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Sara Gagno
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Alessia Bignucolo
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Marcella Montico
- Clinical Trial Office, CRO Aviano, National Cancer Institute, IRCSS, 33081 Aviano, Italy
| | - Rossana Roncato
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Serena Corsetti
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Michele Bartoletti
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, CRO Aviano, National Cancer Institute, IRCCS, 33081 Aviano, Italy
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9
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Mohmaed Ali MI, Bruin MAC, Dezentjé VO, Beijnen JH, Steeghs N, Huitema ADR. Exposure-Response Analyses of Olaparib in Real-Life Patients with Ovarian Cancer. Pharm Res 2023; 40:1239-1247. [PMID: 36944815 DOI: 10.1007/s11095-023-03497-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/04/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND Olaparib is given in a fixed dose of twice-daily 300 mg in patients who are diagnosed with ovarian cancer, breast cancer, prostate cancer or pancreas cancer and has a high interpatient variability in pharmacokinetic exposure. The objective of this study was to investigate whether pharmacokinetic exposure of olaparib is related to efficacy and safety in a real-life patient' cohort. METHODS A longitudinal observational study was conducted in patients who received olaparib for metastatic ovarian cancer of whom pharmacokinetic samples were collected. A Kaplan-Meier analyses was used to explore the relationship between olaparib exposure, measured as (calculated) minimum plasma concentrations (Cmin), and efficacy, Univariate and multivariate cox-regression analyses were performed. Also, the Cmin of patients who experienced toxicity was compared with patients who did not experience any toxicity. RESULTS Thirty-five patients were included in the exposure-efficacy analyses, with a median olaparib Cmin of 1514 ng/mL. There was no statistical significant difference in PFS of patients below and above the median Cmin concentration of olaparib, with a hazard ratio of 1.06 (95% confidence interval: 0.46-2.45, p = 0.9)). For seven patients pharmacokinetic samples were available before toxicity occurred, these patients had a higher Cmin of olaparib in comparison with patients who had not experienced any toxicity (n = 33), but it was not statistically significant (p = 0.069). CONCLUSIONS Our study shows that exposure of olaparib is not related to PFS. This suggests that the approved dose of olaparib yields sufficient target inhibition in the majority of patients.
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Affiliation(s)
- Ma Ida Mohmaed Ali
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Maaike A C Bruin
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Vincent O Dezentjé
- Division of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jos H Beijnen
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Pharmaco-Epidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Neeltje Steeghs
- Division of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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10
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Nanomaterial-based electrochemical sensing platform for the determination of Olaparib. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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11
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Bioanalytical Methods for Poly(ADP-Ribose) Polymerase Inhibitor Quantification: A Review for Therapeutic Drug Monitoring. Ther Drug Monit 2023; 45:306-317. [PMID: 36728223 PMCID: PMC10168115 DOI: 10.1097/ftd.0000000000001081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/29/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Therapeutic drug monitoring (TDM) of poly(ADP-ribose) polymerase inhibitors (PARPis) is an exploratory practice aimed at improving the quality of treatment through personalized therapy. Currently, there are 4 European Medicines Agency-approved and US Food and Drug Administration-approved PARPis available clinically whose quantification requires validated analytical methods: olaparib, niraparib, rucaparib, and talazoparib. The purpose of this literature review was to highlight the pharmacological features of PARPis that could support their TDM practice and provide a detailed discussion of the available liquid chromatography coupled with tandem mass spectrometry methods for their quantification. METHODS Using several Medical Subject Heading terms, the literature was searched using several research engines, including SciFinder, Web of Science, Google Scholar, and PubMed, to find articles published before August 2022. RESULTS Exposure-efficacy and exposure-safety profiles, drug-drug interactions, and hepatic/renal impairment of PARPis provide the potential rationale to monitor their concentrations through TDM. Several bioanalytical methods for their quantification have been reported and compared, and a great deal of heterogeneity has been found among methods, regarding both their analytical and regulatory aspects. CONCLUSIONS In addition to reducing toxicity and increasing the efficacy of PARPis therapy, TDM could be beneficial to thoroughly investigate the exposure-response relationships of PARPis and to establish pharmacokinetic thresholds for clinical decisions. Based on the comparison of published bioanalytical methods, their transferability and validation both play a key role in method selection. For future use in clinical TDM, we anticipate that bioanalytical methods should address every analytical need more thoroughly and should be validated with standardized guidelines.
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12
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Zhao D, Long X, Wang J. Dose Adjustment of Poly (ADP‑Ribose) Polymerase Inhibitors in Patients with Hepatic or Renal Impairment. Drug Des Devel Ther 2022; 16:3947-3955. [PMID: 36405648 PMCID: PMC9673935 DOI: 10.2147/dddt.s387920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/08/2022] [Indexed: 08/30/2023] Open
Abstract
Poly (ADP-ribose) polymerase (PARP) inhibitors are small-molecule inhibitors of PARP enzymes (including PARP1, PARP2, and PARP3) that exhibit activity against tumor cells with defects in DNA repair. In recent years, five PARP inhibitors, olaparib, niraparib, rucaparib, talazoparib and veliparib, have been developed for the treatment of solid tumors, particularly in patients with breast-related cancer antigen (BRCA) 1/2 mutations, or those without a functional homologous recombination repair pathway. These novel treatments exhibit improved efficacy and toxicity when compared to conventional chemotherapy agents. The five PARP inhibitors are eliminated primarily via the liver and kidneys, hepatic or renal impairment may significantly affect their pharmacokinetics (PK). Therefore, it is important to know the effects of hepatic or renal impairment on the PK and safety of PARP inhibitors. In this review, we characterize and summarize the effects of hepatic and renal function on the PK of PARP inhibitors and provide specific recommendations for clinicians when prescribing PARP inhibitors in patients with hepatic or renal impairment.
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Affiliation(s)
- Dehua Zhao
- Department of Clinical Pharmacy, The Third Hospital of Mianyang (Sichuan Mental Health Center), Mianyang, Sichuan, People’s Republic of China
| | - Xiaoqing Long
- Department of Clinical Pharmacy, The Third Hospital of Mianyang (Sichuan Mental Health Center), Mianyang, Sichuan, People’s Republic of China
| | - Jisheng Wang
- Department of Clinical Pharmacy, The Third Hospital of Mianyang (Sichuan Mental Health Center), Mianyang, Sichuan, People’s Republic of China
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Groenland SL, van Eerden RAG, Westerdijk K, Meertens M, Koolen SLW, Moes DJAR, de Vries N, Rosing H, Otten H, Vulink AJE, Desar IME, Imholz ALT, Gelderblom H, van Erp NP, Beijnen JH, Mathijssen RHJ, Huitema ADR, Steeghs N. Therapeutic drug monitoring-based precision dosing of oral targeted therapies in oncology: a prospective multicenter study. Ann Oncol 2022; 33:1071-1082. [PMID: 35777707 DOI: 10.1016/j.annonc.2022.06.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/08/2022] [Accepted: 06/20/2022] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Oral targeted therapies show a high pharmacokinetic (PK) interpatient variability. Even though exposure has been positively correlated with efficacy for many of these drugs, these are still dosed using a one-size-fits-all approach. Consequently, individuals have a high probability to be either underexposed or overexposed, potentially leading to suboptimal outcomes. Therapeutic drug monitoring, which is personalized dosing based on measured systemic drug concentrations, could address these problems. PATIENTS AND METHODS Patients were enrolled in this prospective multicenter study (www.trialregister.nl; NL6695) if they started treatment with one of the 24 participating oral targeted therapies. Primary outcome was to halve the proportion of underexposed patients, compared with historical data. PK sampling was carried out after 4, 8 and 12 weeks, and every 12 weeks thereafter. In case of Cmin below the predefined target and manageable toxicity, a pharmacokinetically guided intervention was proposed (i.e. checking compliance and drug-drug interactions, concomitant intake with food, splitting intake moments or dose increments). RESULTS In total, 600 patients were included of whom 426 patients are assessable for the primary outcome and 552 patients had ≥1 PK sample(s) available and were therefore assessable for the overall analyses. Pharmacokinetically guided dosing reduced the proportion of underexposed patients at the third PK measurement by 39.0% (95% confidence interval 28.0% to 49.0%) compared with historical data. At the third PK measurement, 110 out of 426 patients (25.8%) had a low exposure. In total, 294 patients (53.3%) had ≥1 PK sample(s) below the preset target at a certain time point during treatment. In 166 of these patients (56.5%), pharmacokinetically guided interventions were carried out, which were successful in 113 out of 152 assessable patients (74.3%). CONCLUSIONS Pharmacokinetically guided dose optimization of oral targeted therapies was feasible in clinical practice and reduced the proportion of underexposed patients considerably.
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Affiliation(s)
- S L Groenland
- Department of Clinical Pharmacology, Division of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - R A G van Eerden
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - K Westerdijk
- Department of Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M Meertens
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - S L W Koolen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands; Department of Pharmacy, Erasmus Medical Center, Rotterdam, The Netherlands
| | - D J A R Moes
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, The Netherlands
| | - N de Vries
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - H Rosing
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - H Otten
- Department of Medical Oncology, Meander Medical Center, Amersfoort, The Netherlands
| | - A J E Vulink
- Department of Medical Oncology, Reinier de Graaf Hospital, Delft, The Netherlands
| | - I M E Desar
- Department of Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A L T Imholz
- Department of Medical Oncology, Deventer Hospital, Deventer, The Netherlands
| | - H Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - N P van Erp
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J H Beijnen
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - R H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - A D R Huitema
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands; Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - N Steeghs
- Department of Clinical Pharmacology, Division of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
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14
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Bruin MAC, Sonke GS, Beijnen JH, Huitema ADR. Pharmacokinetics and Pharmacodynamics of PARP Inhibitors in Oncology. Clin Pharmacokinet 2022; 61:1649-1675. [PMID: 36219340 PMCID: PMC9734231 DOI: 10.1007/s40262-022-01167-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2022] [Indexed: 12/15/2022]
Abstract
Olaparib, niraparib, rucaparib, and talazoparib are poly (ADP-ribose) polymerase (PARP) inhibitors approved for the treatment of ovarian, breast, pancreatic, and/or prostate cancer. Poly (ADP-ribose) polymerase inhibitors are potent inhibitors of the PARP enzymes with comparable half-maximal inhibitory concentrations in the nanomolar range. Olaparib and rucaparib are orally dosed twice a day, extensively metabolized by cytochrome P450 enzymes, and inhibitors of several enzymes and drug transporters with a high risk for drug-drug interactions. Niraparib and talazoparib are orally dosed once a day with a lower risk for niraparib and a minimal risk for talazoparib to cause drug-drug interactions. All four PARP inhibitors show moderate-to-high interindividual variability in plasma exposure. Higher exposure is associated with an increase in toxicity, mostly hematological toxicity. For talazoparib, exposure-efficacy relationships have been described, but for olaparib, niraparib, and rucaparib this relationship remains inconclusive. Further studies are required to investigate exposure-response relationships to improve dosing of PARP inhibitors, in which therapeutic drug monitoring could play an important role. In this review, we give an overview of the pharmacokinetic properties of the four PARP inhibitors, including considerations for patients with renal dysfunction or hepatic impairment, the effect of food, and drug-drug interactions. Furthermore, we focus on the pharmacodynamics and summarize the available exposure-efficacy and exposure-toxicity relationships.
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Affiliation(s)
- Maaike A. C. Bruin
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Gabe S. Sonke
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jos H. Beijnen
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands ,Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Alwin D. R. Huitema
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands ,Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands ,Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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