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Fenton SE, Hussain M. Olaparib monotherapy or in combination with abiraterone for treating mutated metastatic castration-resistant prostate cancer: alone or stronger together? Expert Opin Investig Drugs 2024:1-7. [PMID: 39135527 DOI: 10.1080/13543784.2024.2391828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/22/2024] [Accepted: 08/09/2024] [Indexed: 08/21/2024]
Abstract
INTRODUCTION Prostate cancer has entered the era of precision medicine with the introduction of PARP inhibitors for patients with specific mutations in genes associated with DNA damage repair. Recent studies have shown benefit in combination therapy with PARP inhibitors like olaparib and antiandrogens like abiraterone. AREAS COVERED This review discusses the pharmacodynamics and pharmacokinetics of olaparib as well as the data supporting combination therapy with olaparib and abiraterone. EXPERT OPINION Co-targeting the androgen receptor and PARP pathway has shown clear clinical benefit in the management of patients with metastatic castration resistant prostate cancer and mutations in BRCA1, BRCA2, and ATM. The benefit in patients without these mutations is less clear, and the benefit of olaparib combination therapy in the management of hormone sensitive disease remains to be seen.
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Affiliation(s)
- Sarah E Fenton
- Department of Medicine, Division of Hematology/Oncology, Northwestern University, Chicago, IL, USA
| | - Maha Hussain
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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2
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Dobovišek L, Borštnar S, Debeljak N, Kranjc Brezar S. Cannabinoids and triple-negative breast cancer treatment. Front Immunol 2024; 15:1386548. [PMID: 39176080 PMCID: PMC11338791 DOI: 10.3389/fimmu.2024.1386548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 07/15/2024] [Indexed: 08/24/2024] Open
Abstract
Triple-negative breast cancer (TNBC) accounts for about 10-20% of all breast cancer cases and is associated with an unfavorable prognosis. Until recently, treatment options for TNBC were limited to chemotherapy. A new successful systemic treatment is immunotherapy with immune checkpoint inhibitors, but new tumor-specific biomarkers are needed to improve patient outcomes. Cannabinoids show antitumor activity in most preclinical studies in TNBC models and do not appear to have adverse effects on chemotherapy. Clinical data are needed to evaluate efficacy and safety in humans. Importantly, the endocannabinoid system is linked to the immune system and immunosuppression. Therefore, cannabinoid receptors could be a potential biomarker for immune checkpoint inhibitor therapy or a novel mechanism to reverse resistance to immunotherapy. In this article, we provide an overview of the currently available information on how cannabinoids may influence standard therapy in TNBC.
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Affiliation(s)
- Luka Dobovišek
- Division of Medical Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Simona Borštnar
- Division of Medical Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Nataša Debeljak
- Medical Centre for Molecular Biology, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Simona Kranjc Brezar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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3
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Zeng Y, Arisa O, Peer CJ, Fojo A, Figg WD. PARP inhibitors: A review of the pharmacology, pharmacokinetics, and pharmacogenetics. Semin Oncol 2024; 51:19-24. [PMID: 37880048 PMCID: PMC11016131 DOI: 10.1053/j.seminoncol.2023.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/27/2023]
Abstract
PARP inhibitors have emerged as a promising class of anticancer agents approved for the treatment of ovarian, breast, prostate, and pancreatic cancer. These inhibitors target PARP enzymes involved in DNA repair pathways and exhibit remarkable efficacy in cancers with genetic deficiencies in the homologous recombination pathway responsible for mending DNA double-strand breaks. While all PARP inhibitors demonstrate potent and selective inhibition of PARP1 and PARP2, the key enzymes involved in DNA repair, each agent within the class possesses unique pharmacological profiles distinguishing them from one another. This review aims to comprehensively examine the properties of the entire PARP inhibitor class while emphasizing individual pharmacologic and pharmacokinetic distinctions that inform clinical recommendations. Currently, four agents, namely olaparib, rucaparib, niraparib, and talazoparib, have obtained approval in the United States and Europe. Olaparib, the first approved PARP inhibitor, has been extensively studied and is indicated for a wider range of cancer types. Niraparib and talazoparib, the more recent additions to the PARP inhibitor class, possess the longest half-lives and are formulated for convenient once-daily dosing, alleviating the pill burden for patients when compared to older agents. Moreover, talazoparib undergoes minimal hepatic metabolism, reducing the potential for drug-drug interactions. Notably, niraparib is the sole PARP inhibitor recommended for dose reduction in hepatically impaired populations, whereas talazoparib and olaparib should be dose reduced in renally impaired populations. The mechanisms underlying these dose adjustment recommendations are further explored in this review. Additionally, this review briefly covers veliparib, a PARP inhibitor under development, and two recently approved PARP inhibitors in China, fuzuloparib and pamiparib. Although significant progress has been made in understanding PARP inhibitors, there are several unanswered questions that remain, necessitating further research across a broader spectrum of cancer types within this evolving class of anticancer agents.
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Affiliation(s)
- Yi Zeng
- Clinical Pharmacology Laboratory, National Institutes of Health Clinical Center, Bethesda, MD
| | - Oluwatobi Arisa
- Clinical Pharmacology Program, National Cancer Institute, Bethesda, MD
| | - Cody J Peer
- Clinical Pharmacology Laboratory, National Institutes of Health Clinical Center, Bethesda, MD; Clinical Pharmacology Program, National Cancer Institute, Bethesda, MD
| | - Antonio Fojo
- Division of Hematology/Oncology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - William D Figg
- Clinical Pharmacology Laboratory, National Institutes of Health Clinical Center, Bethesda, MD; Clinical Pharmacology Program, National Cancer Institute, Bethesda, MD
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Gao D, Wang G, Wu H, Ren J. Physiologically-based pharmacokinetic modeling for optimal dosage prediction of olaparib when co-administered with CYP3A4 modulators and in patients with hepatic/renal impairment. Sci Rep 2023; 13:16027. [PMID: 37749178 PMCID: PMC10519932 DOI: 10.1038/s41598-023-43258-9] [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: 06/03/2023] [Accepted: 09/21/2023] [Indexed: 09/27/2023] Open
Abstract
This study aimed to develop a physiologically-based pharmacokinetic (PBPK) model to predict the maximum plasma concentration (Cmax) and trough concentration (Ctrough) at steady-state of olaparib (OLA) in Caucasian, Japanese and Chinese. Furthermore, the PBPK model was combined with mean and 95% confidence interval to predict optimal dosing regimens of OLA when co-administered with CYP3A4 modulators and administered to patients with hepatic/renal impairment. The dosing regimens were determined based on safety and efficacy PK threshold Cmax (< 12,500 ng/mL) and Ctrough (772-2500 ng/mL). The population PBPK model for OLA was successfully developed and validated, demonstrating good consistency with clinically observed data. The ratios of predicted to observed values for Cmax and Ctrough fell within the range of 0.5 to 2.0. When OLA was co-administered with a strong or moderate CYP3A4 inhibitor, the recommended dosing regimens should be reduced to 100 mg BID and 150 mg BID, respectively. Additionally, the PBPK model also suggested that OLA could be not recommended with a strong or moderate CYP3A4 inducer. For patients with moderate hepatic and renal impairment, the dosing regimens of OLA were recommended to be reduced to 200 mg BID and 150 mg BID, respectively. In cases of severe hepatic and renal impairment, the PBPK model suggested a dosing regimen of 100 mg BID for OLA. Overall, this present PBPK model can determine the optimal dosing regimens for various clinical scenarios involving OLA.
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Affiliation(s)
- Dongmei Gao
- Department of Medical Oncology, Bethune International Peace Hospital, Shijiazhuang, 050082, China
| | - Guopeng Wang
- Zhongcai Health (Beijing) Biological Technology Development Co., Ltd., Beijing, 101500, China
| | - Honghai Wu
- Department of Clinical Pharmacy, Bethune International Peace Hospital, Shijiazhuang, 050082, China
| | - Jiawei Ren
- North China Electric Power University, No.2, Beinong Road, Huilongguan, Changping District, Beijing, 102206, China.
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5
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Cheng JM, Canzoniero J, Lee S, Soni S, Mangini N, Santa-Maria CA. Exceptional responses to PARP inhibitors in patients with metastatic breast cancer in oncologic crisis. Breast Cancer Res Treat 2023; 199:389-397. [PMID: 37002487 PMCID: PMC10065997 DOI: 10.1007/s10549-023-06910-6] [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: 11/23/2022] [Accepted: 03/07/2023] [Indexed: 04/03/2023]
Abstract
PURPOSE Cancers deficient in homologous recombination DNA repair, such as those with BRCA1 or BRCA2 (BRCA1/2) mutations rely on a pathway mediated by the enzyme poly(adenosine diphosphate-ribose) polymerase (PARP). PARP inhibitors (PARPi's) have demonstrated efficacy in treating patients with germline (g)BRCA1/2, somatic (s)BRCA1/2, and gPALB2 mutations in clinical trials. However, patients with a poor performance status (PS) and those with severe organ impairment are often excluded from clinical trials and cancer-directed treatment. METHODS We report the cases of two patients with metastatic breast cancer who had poor PS, significant visceral disease, and gPALB2 and sBRCA mutations, who derived significant clinical benefit from treatment with PARP inhibition. RESULTS Patient A had germline testing demonstrating a heterozygous PALB2 pathogenic mutation (c.3323delA) and a BRCA2 variant of unknown significance (c.9353T>C), and tumor sequencing revealed PALB2 (c.228_229del and c.3323del) and ESR1 (c.1610A>C) mutations. Patient B was negative for pathologic BRCA mutations upon germline testing, but tumor sequencing demonstrated somatic BRCA2 copy number loss and a PIK3CA mutation (c.1633G>A). Treatment with PARPi's in these two patients with an initial PS of 3-4 and significant visceral disease resulted in prolonged clinical benefit. CONCLUSION Patients with a poor PS, such as those described here, may still have meaningful clinical responses to cancer treatments targeting oncogenic drivers. More studies evaluating PARPi's beyond gBRCA1/2 mutations and in sub-optimal PS would help identify patients who may benefit from these therapies.
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Affiliation(s)
- Joyce M Cheng
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jenna Canzoniero
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Seoho Lee
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sudeep Soni
- Community Radiology Division, Johns Hopkins University, Washington, DC, USA
| | - Neha Mangini
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Cesar A Santa-Maria
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.
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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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Maiorano BA, Maiorano MFP, Maiello E. Olaparib and advanced ovarian cancer: Summary of the past and looking into the future. Front Pharmacol 2023; 14:1162665. [PMID: 37153769 PMCID: PMC10160416 DOI: 10.3389/fphar.2023.1162665] [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: 02/09/2023] [Accepted: 04/11/2023] [Indexed: 05/10/2023] Open
Abstract
Ovarian cancer (OC) is women's eighth most common cancer, bearing the highest mortality rates of all female reproductive system malignancies. Poly (ADP-ribose) polymerase inhibitors (PARPis) have reshaped the treatment scenario of metastatic OC as a maintenance post platinum-based chemotherapy. Olaparib is the first PARPi developed for this disease. Results from Study 42, Study 19, SOLO2, OPINION, SOLO1, and PAOLA-1 clinical trials, led to the FDA and EMA approval of olaparib for the maintenance treatment of women with high-grade epithelial ovarian, fallopian tube, or primary peritoneal cancer without platinum progression: in the platinum-sensitive recurrent OC; in the newly diagnosed setting in case Breast Cancer (BRCA) mutations and, in combination with bevacizumab, in case of BRCA mutation or deficiency of homologous recombination genes. In this review, we synthetized olaparib's pharmacokinetic and pharmacodynamic properties and its use in special populations. We summarized the efficacy and safety of the studies leading to the current approvals and discussed the future developments of this agent.
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Affiliation(s)
- Brigida Anna Maiorano
- Oncology Unit, Foundation Casa Sollievo della Sofferenza IRCCS, San Giovanni Rotondo, Italy
- Department of Translational Medicine and Surgery, Catholic University of the Sacred Heart, Rome, Italy
| | - Mauro Francesco Pio Maiorano
- Division of Obstetrics and Gynecology, Biomedical and Human Oncological Science, University of Bari “Aldo Moro”, Bari, Italy
- *Correspondence: Mauro Francesco Pio Maiorano,
| | - Evaristo Maiello
- Oncology Unit, Foundation Casa Sollievo della Sofferenza IRCCS, San Giovanni Rotondo, Italy
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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: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [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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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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PARP Inhibitors for Breast Cancer: Germline BRCA1/2 and Beyond. Cancers (Basel) 2022; 14:cancers14174332. [PMID: 36077867 PMCID: PMC9454726 DOI: 10.3390/cancers14174332] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/27/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Poly-adenosine diphosphate ribose polymerase (PARP) inhibitors (PARPi) are effective against tumors with mutations in DNA repair genes, most commonly in the BRCA1 and BRCA2 genes. Because these tumors are unable to repair their DNA, PARPi have been used to target DNA repair pathways and are useful in the treatment of breast cancers with some of these alterations. There are two FDA-approved PARPi for patients with breast cancer—olaparib and talazoparib. The data on olaparib and talazoparib in the treatment of breast cancer are summarized in this review, and we also explore potential future applications of PARPi beyond inherited BRCA mutations. Abstract Poly-adenosine diphosphate ribose polymerase (PARP) inhibitors (PARPi) are approved for BRCA1/2 carriers with HER2-negative breast cancer in the adjuvant setting with a high risk of recurrence as well as the metastatic setting. However, the indications for PARPi are broader for patients with other cancer types (e.g., prostate and ovarian cancer), involving additional biomarkers (e.g., ATM, PALB2, and CHEK) and genomic instability scores. Herein, we summarize the data on PARPi and breast cancer and discuss their use beyond BRCA carriers.
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11
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Yang DZ, Alhadab A, Parivar K, Wang DD, Elmeliegy M. Analysis of US Food and Drug Administration Oncology Approvals on the Characterization of Hepatic Impairment Effect and Dosing Recommendations. Clin Pharmacol Ther 2021; 112:782-790. [PMID: 34870845 PMCID: PMC9540487 DOI: 10.1002/cpt.2505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/30/2021] [Indexed: 11/06/2022]
Abstract
Patients with cancer and advanced hepatic impairment (HI) (i.e., moderate and severe impairment) are often excluded from first-in-patient, phase II, and phase III studies. Thus, dose recommendations for this subgroup of patients are often derived using a combination of dedicated phase I studies conducted in participants without cancer and a population pharmacokinetic (PK) modeling approach. A standardized risk-based approach to guide the evaluation of HI in patients with cancer is needed. In this review, we evaluated available oncology drug approvals by the US Food and Drug Administration (FDA) from 1999 to 2019, identified strategies utilized by sponsors to characterize the effect of HI on the PK of oncology drugs, and assessed regulatory expectations for each strategy. Finally, we constructed a decision tree that complements current FDA guidance to enable efficient evaluation of the effect of HI on PK and provide guidance for dose recommendations.
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Affiliation(s)
- Derek Z Yang
- Global Product Development, Pfizer Inc, San Diego, California, USA
| | - Ali Alhadab
- Global Product Development, Pfizer Inc, San Diego, California, USA
| | - Kourosh Parivar
- Global Product Development, Pfizer Inc, San Diego, California, USA
| | - Diane D Wang
- Global Product Development, Pfizer Inc, San Diego, California, USA
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Grechko N, Skarbova V, Tomaszewska-Kiecana M, Ramlau R, Centkowski P, Drew Y, Dziadziuszko R, Zemanova M, Beltman J, Nash E, Habeck J, Liao M, Xiao J. Pharmacokinetics and safety of rucaparib in patients with advanced solid tumors and hepatic impairment. Cancer Chemother Pharmacol 2021; 88:259-270. [PMID: 33909097 PMCID: PMC8236452 DOI: 10.1007/s00280-021-04278-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/14/2021] [Indexed: 02/03/2023]
Abstract
PURPOSE The poly(ADP-ribose) polymerase inhibitor rucaparib is approved for the treatment of patients with recurrent ovarian and metastatic castration-resistant prostate cancer; however, limited data are available on its use in patients with hepatic dysfunction. This study investigated whether hepatic impairment affects the pharmacokinetics, safety, and tolerability of rucaparib in patients with advanced solid tumors. METHODS Patients with normal hepatic function or moderate hepatic impairment according to the National Cancer Institute Organ Dysfunction Working Group (NCI-ODWG) criteria were enrolled and received a single oral dose of rucaparib 600 mg. Concentrations of rucaparib and its metabolite M324 in plasma and urine were measured. Pharmacokinetic parameters were compared between hepatic function groups, and safety and tolerability were assessed. RESULTS Sixteen patients were enrolled (n = 8 per group). Rucaparib maximum concentration (Cmax) was similar, while the area under the concentration-time curve from time 0 to infinity (AUC0-inf) was mildly higher in the moderate hepatic impairment group than in the normal control group (geometric mean ratio, 1.446 [90% CI 0.668-3.131]); similar trends were observed for M324. Eight (50%) patients experienced ≥ 1 treatment-emergent adverse event (TEAE); 2 had normal hepatic function and 6 had moderate hepatic impairment. CONCLUSION Patients with moderate hepatic impairment showed mildly increased AUC0-inf for rucaparib compared to patients with normal hepatic function. Although more patients with moderate hepatic impairment experienced TEAEs, only 2 TEAEs were considered treatment related. These results suggest no starting dose adjustment is necessary for patients with moderate hepatic impairment; however, close safety monitoring is warranted.
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Affiliation(s)
| | - Viera Skarbova
- Department of Internal Medicine and Clinical Pharmacology, Summit Clinical Research, Bratislava, Slovakia
| | | | - Rodryg Ramlau
- Department of Oncology and Pulmonology, Poznan University of Medical Sciences, Poznan, Poland
| | - Piotr Centkowski
- Department of Oncology, Provincial Specialist Hospital in Biała Podlaska, Biała Podlaska, Poland
| | - Yvette Drew
- Clinical and Translational Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - Rafal Dziadziuszko
- Department of Oncology and Radiotherapy and Early Clinical Trials Unit, Medical University of Gdańsk, Gdańsk, Poland
| | - Milada Zemanova
- Department of Oncology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jeri Beltman
- Regulatory Affairs, Clovis Oncology, Inc., Boulder, CO, USA
| | - Eileen Nash
- Clinical Operations, Clovis Oncology, Inc., Boulder, CO, USA
| | - Jenn Habeck
- Biostatistics, Clovis Oncology, Inc., Boulder, CO, USA
| | - Mingxiang Liao
- Clinical Pharmacology, Clovis Oncology, Inc., 5500 Flatiron Pkwy, Boulder, CO, 80301, USA
| | - Jim Xiao
- Clinical Pharmacology, Clovis Oncology, Inc., 5500 Flatiron Pkwy, Boulder, CO, 80301, USA.
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Rolfo C, Isambert N, Italiano A, Molife LR, Schellens JHM, Blay JY, Decaens T, Kristeleit R, Rosmorduc O, Demlova R, Lee MA, Ravaud A, Kopeckova K, Learoyd M, Bannister W, Locker G, de Vos-Geelen J. Pharmacokinetics and safety of olaparib in patients with advanced solid tumours and mild or moderate hepatic impairment. Br J Clin Pharmacol 2020; 86:1807-1818. [PMID: 32227355 DOI: 10.1111/bcp.14283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/24/2020] [Accepted: 03/07/2020] [Indexed: 12/12/2022] Open
Abstract
AIMS Olaparib, a potent oral poly(ADP-ribose) polymerase inhibitor, is partially hepatically cleared. We investigated the pharmacokinetics (PK) and safety of olaparib in patients with mild or moderate hepatic impairment to provide dosing recommendations. METHODS This Phase I open-label study assessed the PK, safety and tolerability of single doses of olaparib 300-mg tablets in patients with advanced solid tumours. Patients had normal hepatic function (NHF), or mild (MiHI; Child-Pugh class A) or moderate (MoHI; Child-Pugh class B) hepatic impairment. Blood was collected for PK assessments for 96 hours. Patients could continue taking olaparib 300 mg twice daily for long-term safety assessment. RESULTS Thirty-one patients received ≥1 dose of olaparib and 30 were included in the PK assessment. Patients with MiHI had an area under the curve geometric least-squares mean (GLSmean) ratio of 1.15 (90% confidence interval 0.72, 1.83) and a GLSmean maximum plasma concentration ratio of 1.13 (0.82, 1.56) vs those with NHF. In patients with MoHI, GLSmean ratio for area under the curve was 1.08 (0.66, 1.74) and for maximum plasma concentration was 0.87 (0.63, 1.22) vs those with NHF. For patients with mild or moderate hepatic impairment, no new safety signals were detected. CONCLUSION Patients with MiHI or MoHI had no clinically significant changes in exposure to olaparib compared with patients with NHF. The safety profile of olaparib did not differ from a clinically relevant extent between cohorts. No olaparib tablet or capsule dose reductions are required for patients with MiHI or MoHI.
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Affiliation(s)
- Christian Rolfo
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, Experimental Therapeutics Program, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | | | | | - Jan H M Schellens
- The Netherlands Cancer Institute, Amsterdam, The Netherlands.,Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, The Netherlands
| | | | - Thomas Decaens
- Department of hepato-gastroenterology, Université Grenoble-Alpes, CHU Grenoble-Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Rebecca Kristeleit
- The Netherlands Cancer Institute, Amsterdam, and Utrecht University, Utrecht, The Netherlands
| | - Olivier Rosmorduc
- APHP, Hôpital La Pitié Salpêtrière, Service d'Hépato-Gastroentérologie, Paris, France
| | - Regina Demlova
- Faculty of Medicine, Department of Pharmacology, Masaryk Memorial Cancer Institute, Masaryk Univerzity, Brno, Czech Republic
| | - Myung-Ah Lee
- The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, South Korea
| | - Alain Ravaud
- Hôpital Saint André, Bordeaux University Hospital, Bordeaux, France
| | - Katerina Kopeckova
- University Hospital in Motol, Charles University, Prague, Czech Republic
| | | | | | | | - Judith de Vos-Geelen
- Department of Internal Medicine, Division of Medical Oncology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
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