Pilot Trial of BMN 673, an Oral PARP Inhibitor, in Patients With Advanced Solid Tumors and Deleterious BRCA Mutations

NCT01989546 | Completed Phase 1 Results FDA Drug

• 2 other identifiers: 14001514-C-0015
• Study Type: interventional
• Target: 9
• Locations: 1 country
• Sites: 1

Brief Summary

Background:

• The poly (ADP-ribose) polymerase (PARP) family of enzymes is critical for maintaining genomic stability by regulating a variety of deoxyribonucleic acid (DNA) damage repair mechanisms.
• Talazoparib (BMN 673) is a PARP inhibitor with greater in vitro activity than any other PARP inhibitor currently in development. BMN 673 has been shown to cause single-agent synthetic lethality in breast cancer 1 and breast cancer 2 (BRCA1/2)- and phosphatase and tensin homolog (PTEN)-deficient cell lines and has potent antitumor activity in animal models of tumors harboring mutations in DNA repair pathways.
• BMN 673 is showing promising single-agent activity in patients with advanced ovarian and breast cancer harboring deleterious BRCA mutations.
• This pilot study will evaluate the pharmacodynamic effects of BMN 673 on DNA damage and apoptosis markers in tumor biopsy tissue. Primary Objective:
• Determine the pharmacodynamic effect of BMN 673 in tumor biopsies from patients with advanced ovarian, breast, or other solid tumor and deleterious BRCA mutations. Secondary Objectives:
• Determine the response rate (Complete Response (CR) + Partial Response (PR) of treatment with BMN 673 in patients with advanced ovarian or primary peritoneal carcinoma and deleterious BRCA mutations.
• Determine the response rate (CR + PR) of treatment with BMN 673 in patients with advanced breast carcinoma and deleterious BRCA mutations.
• Determine the response rate (CR + PR) of treatment with BMN 673 in patients with advanced solid tumor (other than breast or ovarian) and deleterious BRCA mutations. Eligibility:
• Adult patients with documented deleterious BRCA 1 or 2 mutations with histologically confirmed ovarian, primary peritoneal, breast, prostate, pancreas, gastric or other solid tumor whose disease has progressed following at least one standard therapy or who have no acceptable standard treatment options.
• No major surgery, radiation, or chemotherapy within 4 weeks prior to study enrollment, and recovered from toxicities of prior therapies to at least eligibility levels.
• Age greater than or equal to 18 years of age; Eastern Cooperative Oncology Group (ECOG) performance status less than equal to 2
• Adequate organ function.
• Willingness to undergo tumor biopsies. Study Design:
• BMN 673 will be administered orally each day in 28-day cycles.
• Dosing will be at the established recommended Phase II dose of 1000 mcg/day each day for 28 days.
• We plan to accrue a total of 12 evaluable patients per cohort for a total of 36 patients. To allow for some patients who will not be evaluable, the accrual ceiling is 42 patients.
• Tumor biopsies will be mandatory at baseline (pre-dose), and then approximately 3-6 hours post BMN 673 on day 8. An optional tumor biopsy may also be collected at time of disease progression. SCHEMA
• BMN 673 is administered orally each day in 28-day cycles
• Tumor biopsies will be performed at baseline (pre-treatment) and 3-6 hrs post dose on cycle 1 day 8. An optional tumor biopsy may also be collected at time of disease progression. Tumor biopsies will be evaluated for protease activated receptor (PAR) levels, DNA damage response markers such as \>=H2A.X Variant Histone (H2AX), cleaved caspase 3, excision repair cross-complementing group 1 (ERCC1), pNbs1, XPF, RAD51, and pT1989ATR, and, as indicators of ataxia telangiectasia and Rad3-related protein (ATR)/ataxia telangiectasia mutated (ATM) activation, Checkpoint kinase 1 (chk1) and Checkpoint kinase 2 (chk2)
• Blood samples for circulating tumor cells (CTC) analyses will be collected at baseline (pre-treatment), on cycle 1 day 1(3-6 hours post dose), on cycle 1 day 8 (3-6 hours post dose), and on cycle 2 day 1 (3-6 hours post dose)
• Blood samples for pharmacokinetic (PK) analysis will be collected on cycle 1 day 1 pre-dose and 0.5, 1, 2, 3, 4, 6,8, and 24 hours post-dose, on cycle 1 day 8 (3-6 hours post dose), and on cycle 2 day 1 pre-dose and 3-6 hours post dose.

Conditions

Advanced Ovarian Cancer; Primary Peritoneal Cancer; Advanced Breast Cancer; Advanced Solid Tumors

Keywords

DNA Damage; Advanced Solid Tumors; BRCA Mutations; PARP Inhibitor; Pharmacodynamics

Outcome Measures

Primary Outcomes (1)

• Percent of Participants Who Achieve a Sustained Progressive Disease (PD) Response, Defined to be at Least 4% Nuclear Area Positive (NAP) γH2AX at the Day 8 Biopsy

  Evaluation of drug effect on deoxyribonuclecic acid (DNA) damage response will be performed using immunofluorescence assays to measure the DNA damage repair marker γH2A (the phosphorylated form of histone family member X, H2AX) in the nucleus of tumor cells obtained via core biopsy.

  Cycle 1, day 8

Secondary Outcomes (1)

• Response Rate (Complete Response (CR) + Partial Response (PR) of Treatment With Talazoparib (BMN 673) in Participants With Deleterious Breast Cancer (BRCA) Mutations

  Restaging scans will be carried out every 2 cycles (8 weeks) until the end of treatment (average, 7 months)

Other Outcomes (1)

• Number of Participants With Serious and Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0)

  Date treatment consent signed to date off study, approximately 28 months and 24 days.

Study Arms (1)

1/Talazoparib (BMN 673)

EXPERIMENTAL

Single agent

Drug: BMN 673

Interventions

BMN 673 DRUG

Poly (ADP-ribose) polymerase (PARP) inhibitor; has been shown to cause single-agent synthetic lethality in breast cancer 1 and breast cancer 2 (BRCA1/2)- and phosphatase and tensin homolog (PTEN)-deficient cell lines, and has potent antitumor activity in animal models of tumors harboring mutations in deoxyribonucleic acid (DNA) repair pathways.

Also known as: Talazoparib

1/Talazoparib (BMN 673)

Eligibility Criteria

• Age: 18 Years - 120 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Adult patients with documented deleterious breast cancer 1 and breast cancer 2 (BRCA 1 or 2) mutations with histologically confirmed ovarian, primary peritoneal, breast, prostate, pancreas, gastric or other solid tumor whose disease has progressed following at least one standard therapy or who have no acceptable standard treatment options.
• Patients with ovarian cancer should have one prior platinum-based
• chemotherapeutic regimen for management of primary disease containing carboplatin, cisplatin, or another organoplatinum compound. This initial treatment may have included intraperitoneal therapy, consolidation, biologic/targeted (noncytotoxic) agents or extended therapy administered after surgical or non-surgical
• assessment. Ovarian cancer patients with both platinum-sensitive and platinum resistant disease are eligible. Patients with platinum-refractory disease are NOT eligible.
• Patients with metastatic disease must have received at least one line of standard of care (SOC) treatment for metastatic disease prior to enrollment
• Age greater than or equal to 18 years of age.
• Eastern Cooperative Oncology Group (ECOG) performance status less than or equal to 2
• Life expectancy of greater than 3 months.
• Patients must have normal organ and marrow function as defined below:
• leukocytes greater than or equal to 3,000/mcL
• absolute neutrophil count greater than or equal to 1,500/mcL
• platelets greater than or equal to 100,000/mcL
• total bilirubin less than or equal to 1.5 times institutional upper limit of normal
• Aspartate aminotransferase (AST) Serum glutamic-oxaloacetic transaminase (SGOT)/alanine aminotransferase (ALT) Serum glutamic pyruvic transaminase (SGPT) less than or equal to 3 times institutional upper limit of normal
• creatinine less than or equal to 1.5 times institutional upper limit of normal

You may not qualify if:

• Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier. Patients who have had prior treatment with any PARP inhibitors are ineligible.
• Patients who are receiving any other investigational agents.
• Patients with known active brain metastases or carcinomatous meningitis are excluded from this clinical trial. Patients whose brain metastatic disease status has remained stable for greater than or equal to 4 weeks following treatment of brain metastases are eligible to participate at the discretion of the principal investigator.
• Eligibility of subjects receiving any medications or substances with the potential to affect the activity or pharmacokinetics of BMN 673 will be determined following review by the principal investigator.
• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
• Pregnant women are excluded from this study because the effects of the study drugs on the developing fetus are unknown.
• human immunodeficiency virus (HIV)-positive patients on combination antiretroviral therapy are ineligible because of the potential for pharmacokinetic interactions with BMN 673. In addition, these patients are at increased risk of lethal infections when treated with marrow suppressive therapy. Appropriate studies will be undertaken in patients receiving combination antiretroviral therapy when indicated.
• Patients who require use of coumarin-derivative anticoagulants such as warfarin are excluded. Low molecular weight heparin is permitted for prophylactic or therapeutic use. Low-dose warfarin (less than or equal to 1 mg/day) is permitted.
• Women who are currently lactating

Sponsors & Collaborators

• National Cancer Institute (NCI): lead

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (4)

• Litton JK, Rugo HS, Ettl J, Hurvitz SA, Goncalves A, Lee KH, Fehrenbacher L, Yerushalmi R, Mina LA, Martin M, Roche H, Im YH, Quek RGW, Markova D, Tudor IC, Hannah AL, Eiermann W, Blum JL. Talazoparib in Patients with Advanced Breast Cancer and a Germline BRCA Mutation. N Engl J Med. 2018 Aug 23;379(8):753-763. doi: 10.1056/NEJMoa1802905. Epub 2018 Aug 15.

  PMID: 30110579 BACKGROUND

• de Bono J, Ramanathan RK, Mina L, Chugh R, Glaspy J, Rafii S, Kaye S, Sachdev J, Heymach J, Smith DC, Henshaw JW, Herriott A, Patterson M, Curtin NJ, Byers LA, Wainberg ZA. Phase I, Dose-Escalation, Two-Part Trial of the PARP Inhibitor Talazoparib in Patients with Advanced Germline BRCA1/2 Mutations and Selected Sporadic Cancers. Cancer Discov. 2017 Jun;7(6):620-629. doi: 10.1158/2159-8290.CD-16-1250. Epub 2017 Feb 27.

  PMID: 28242752 BACKGROUND

• Wilsker DF, Barrett AM, Dull AB, Lawrence SM, Hollingshead MG, Chen A, Kummar S, Parchment RE, Doroshow JH, Kinders RJ. Evaluation of Pharmacodynamic Responses to Cancer Therapeutic Agents Using DNA Damage Markers. Clin Cancer Res. 2019 May 15;25(10):3084-3095. doi: 10.1158/1078-0432.CCR-18-2523. Epub 2019 Feb 21.

  PMID: 30792217 RESULT

• Mittra A, Coyne GHOS, Zlott J, Kummar S, Meehan R, Rubinstein L, Juwara L, Wilsker D, Ji J, Miller B, Navas T, Ferry-Galow KV, Voth AR, Chang TC, Jiwani S, Parchment RE, Doroshow JH, Chen AP. Pharmacodynamic effects of the PARP inhibitor talazoparib (MDV3800, BMN 673) in patients with BRCA-mutated advanced solid tumors. Cancer Chemother Pharmacol. 2024 Mar;93(3):177-189. doi: 10.1007/s00280-023-04600-0. Epub 2023 Nov 27.

  PMID: 38010394 DERIVED

Related Links

• NIH Clinical Center Detailed Web Page

MeSH Terms

Interventions

talazoparib

Results Point of Contact

• Title: Dr. Alice P. Chen
• Organization: National Cancer Institute

chenali@mail.nih.gov

240-781-3274

Study Officials

• Alice P Chen, M.D.

  National Cancer Institute (NCI)

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: NIH
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: November 16, 2013
• First Posted: November 21, 2013
• Study Start: February 4, 2014
• Primary Completion: March 26, 2020
• Study Completion: March 26, 2020
• Last Updated: February 23, 2021
• Results First Posted: January 27, 2021

Record last verified: 2021-02

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)