Study of Talazoparib, a PARP Inhibitor, in Patients With Advanced or Recurrent Solid Tumors

June 29, 2018 updated by: Pfizer

A Phase 1, First In Human, Single-arm, Open-label Study Of Once A Day, Orally Administered Talazoparib (Bmn 673) In Patients With Advanced Or Recurrent Solid Tumors

This is a single-arm, open-label study to assess the safety, pharmacokinetics, pharmacodynamics, and preliminary efficacy of talazoparib in patients with advanced tumors with DNA-repair pathway deficiencies. There will be 2 parts to the study: a dose escalation phase in which the maximum tolerated dose will be defined, and a dose expansion phase.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
113

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
    • Surrey
      • Sutton, Surrey, United Kingdom, SM2 5PT
        • Royal Marsden Hospital NHS Foundation Trust
  • United States
    • Arizona
      • Scottsdale, Arizona, United States, 85258
        • Scottsdale Healthcare
      • Scottsdale, Arizona, United States, 85258
        • Virginia G. Piper Cancer Center Research Pharmacy
    • California
      • Los Angeles, California, United States, 90095
        • Ronald Reagan UCLA Medical Center
      • Los Angeles, California, United States, 90095
        • UCLA Hematology/Oncology
      • Los Angeles, California, United States, 90095
        • Westwood Bowyer Clinic, Peter Morton Medical Building
      • Los Angeles, California, United States, 90095
        • (IRB# 12-000131) Ronald Reagan UCLA Medical Center, Drug Information Center
      • Santa Monica, California, United States, 90404
        • UCLA Hematology/Oncology - Santa Monica
      • Santa Monica, California, United States, 90404
        • Santa Monica - UCLA Medical Center & Orthopaedic Hospital
    • Indiana
      • Bloomington, Indiana, United States, 47403
        • IU health Bloomington Hospital
      • Indianapolis, Indiana, United States, 46202
        • Indiana University Health Melvin and Bren Simon Cancer Center
      • Indianapolis, Indiana, United States, 46202
        • IU Health University Hospital
      • Indianapolis, Indiana, United States, 46202
        • Investigational Drug Services
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • University of Michigan Health System
    • Texas
      • Houston, Texas, United States, 77030-4009
        • The University of Texas MD Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Histologically or cytologically documented, unresectable, locally advanced or metastatic solid tumor
  • Must have available archived tumor tissue (formalin-fixed paraffin-embedded) [FFPE].
  • 18 years of age or older.
  • Have measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST, v1.1) or increased CA-125 (ovarian cancer) or PSA (prostate cancer) and/or CA 19-9 (pancreatic cancer).
  • Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1.
  • Have adequate organ function
  • Able to take oral medications.
  • Willing and able to provide informed consent.
  • Sexually active patients must be willing to use an acceptable method of contraception.
  • Females of childbearing potential must have a negative serum pregnancy test at screening.
  • Willing and able to comply with all study procedures.

Part 2 Dose Expansion Tumor Types:

  • Breast and ovarian cancer patients with deleterious or pathogenic BRCA mutations who have received no more than 4 prior regimens for metastatic disease.
  • Prostate or pancreatic cancer patients with deleterious or pathogenic BRCA mutations who have received no more than 2 prior regimens for metastatic disease.
  • Small cell lung cancer (SCLC) patients who have received no more than one prior regimen for SCLC.
  • Ewing's sarcoma patients who have received no more than 3 prior regimens for metastatic disease.

Exclusion Criteria:

  • Part 2 Expansion: Prior treatment with a PARP inhibitor.

  • Has history of central nervous system (CNS) metastasis.

    * Exception: In patients with SCLC, history of adequately treated brain metastasis who do not require corticosteroids for management of CNS symptoms.

  • Has had major surgery within 28 days before Cycle 1, Day 1.
  • Has active peptic ulcer disease.
  • Active gastrointestinal tract disease with malabsorption syndrome.
  • Pregnant or breastfeeding at screening or planning to become pregnant (in each case, either oneself or one's partner) at any time during the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Talazoparib
Drug: Talazoparib
Oral capsule with multiple dosage forms given once daily
Other Names:
  • BMN 673
  • MDV3800

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Objective Response
Time Frame: From Baseline until disease progression or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Objective response in participants was defined as the number of participants with complete response (CR) or partial response (PR) after treatment with talazoparib and maintained for at least 4 weeks (28 days) as assessed by response evaluation criteria in solid tumors (RECIST) version 1.1. CR defined as disappearance of all non-nodal target lesions (where all target lesions were recorded with a length of 0 millimeter [mm] on the case report form [CRF]) and the reduction of the shortest diameter of all nodal lesions to less than [<] 10 mm. PR was defined by a 30% or more decrease in the sum of the longest diameters (SLD) + sum of shortest diameters (SSD) of target lesions, taking as reference the baseline SLD+SSD.
From Baseline until disease progression or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Number of Participants With Best Overall Response
Time Frame: From Baseline until disease progression or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Best overall response: best response (in the order of confirmed CR, confirmed PR, stable disease [SD] and progressive disease [PD]) among all overall response as RECIST 1.1, recorded from date of first dose of talazoparib until participant withdrew from study/data cut-off date, whichever earlier. CR defined as disappearance of all non-nodal target lesions (where all target lesions recorded with a length of 0 mm on the CRF) and the reduction of the shortest diameter of all nodal lesions to < 10 mm. PR defined as at least a 30% decrease in sum of the diameters of target lesions, reference to baseline sum diameters. SD defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study. PD defined as at least a 20% increase in sum of diameters of target lesions, reference to the smallest sum on study (this includes the baseline sum if that was the smallest on study).
From Baseline until disease progression or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Progression-Free Survival (PFS)
Time Frame: Baseline, until PD or death due to any cause (maximum duration:1071 days for Part 1; 834 days for Part 2)
PFS was defined as the time (in weeks) from the date of first dose of study drug to the earlier date of the documented PD or death due to any cause. PD as per RECIST 1.1 defined as at least a 20% increase in the sum of diameters of target lesions, reference to the smallest sum on study (this includes the baseline sum if that was the smallest on study).
Baseline, until PD or death due to any cause (maximum duration:1071 days for Part 1; 834 days for Part 2)
Duration of Response
Time Frame: Baseline until PD or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Duration of response was defined as the time (in weeks) from the date of the first documented objective response confirmed at least 28 days later to the date of the first documented PD or date of death, whichever occurred first. PD as per RECIST version 1.1 defined as at least a 20% increase in the sum of diameters of target lesions, reference to the smallest sum on study (this includes the baseline sum if that was the smallest on study).
Baseline until PD or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Number of Participants With Stable Disease
Time Frame: Baseline, until PD or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
SD defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study. PD defined as at least a 20% increase in sum of diameters of target lesions, reference to the smallest sum on study (this includes the baseline sum if that was the smallest on study).
Baseline, until PD or death due to any cause (maximum duration: 1071 days for Part 1; 834 days for Part 2)
Part 1: Maximum Tolerated Dose (MTD)
Time Frame: Cycle 1 (Day 1 up to Day 42)
The MTD was defined as the highest dose at which no more than 1 of 6 participants experienced a Dose Limiting Toxicity (DLT). DLT defined as any of the following occurring during cycle 1 of part 1 of study, Hematologic toxicity: Any grade 4 or higher hematologic adverse event, Grade 3 thrombocytopenia associated with grade 2 or higher haemorrhage, Grade 3 thrombocytopenia or neutropenia that led to interruption of dosing for 5 or more days. Nonhematologic toxicity: grade 3 or higher laboratory AE which was asymptomatic and rapidly reversible adverse events (returned to baseline or to grade 1 or lower within 7 days), Grade 3 nausea, vomiting, or diarrhea that could be medically managed to grade 2 or lower with anti-emetics and/or anti-diarrheals within 24 hours, Grade 3 fatigue that improved to grade 2 or lower in 5 days or less, Alopecia. Grades based on National Cancer Institute Common Terminology Criteria for Adverse Events version 4.03.
Cycle 1 (Day 1 up to Day 42)
Part 1: Recommended Part 2 Dose of Talazoparib
Time Frame: Baseline up to Cycle 50 (each cycle 28 days)
The Recommended dose of talazoparib for use in Part 2 was determined in Part 1 (dose escalation) on the basis of the totality of safety, pharmacokinetics (PK), pharmacodynamic and preliminary efficacy data observed in Cycles 1 and 2 and beyond.
Baseline up to Cycle 50 (each cycle 28 days)

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Part 1 and 2: Number of Participants With Treatment-Emergent Adverse Events and Serious Adverse Events
Time Frame: Part 1: Baseline up to 1071 days; Part 2: Baseline up to 834 days
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent were events between first dose of study drug and up to end of study (up to 1071 days for Part 1 and up to 834 days for Part 2) that were absent before treatment or that worsened relative to pre-treatment state.
Part 1: Baseline up to 1071 days; Part 2: Baseline up to 834 days
Part 1: Maximum Observed Plasma Concentration (Cmax) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
Part 2: Maximum Observed Plasma Concentration (Cmax) of Talazoparib
Time Frame: Cycle 1 and 2: Predose, 0.5, 1, 2, 3 and 4 hours postdose on Day 1
Cycle 1 and 2: Predose, 0.5, 1, 2, 3 and 4 hours postdose on Day 1
Part 1: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
Part 2: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Talazoparib
Time Frame: Cycle 1 and 2: Predose, 0.5, 1, 2, 3 and 4 hours postdose on Day 1
Cycle 1 and 2: Predose, 0.5, 1, 2, 3 and 4 hours postdose on Day 1
Part 1: Area Under the Plasma Concentration-Time Curve (AUC) From Time 0 to the Time of the Last Measurable Concentration (AUC0-last) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1
Area under the plasma concentration time-curve from zero to the time of last measured concentration (AUC0-last).
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1
Part 2: Area Under the Plasma Concentration-Time Curve (AUC) From Time 0 to the Time of the Last Measurable Concentration (AUC0-last) of Talazoparib
Time Frame: Cycle 1 and 2: Predose, 0.5, 1, 2, 3 and 4 hours postdose on Day 1
Area under the plasma concentration time-curve from zero to the time of last measured concentration (AUC0-last).
Cycle 1 and 2: Predose, 0.5, 1, 2, 3 and 4 hours postdose on Day 1
Part 1: Minimum Observed Plasma Concentration (Cmin) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 35
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 35
Part 1: Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0-inf)] of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1
AUC (0-inf) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time.
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1
Part 1: Terminal Half-Life (t1/2) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
T1/2 is the time measured for the plasma concentration of talazoparib to decrease by one half.
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
Part 1: Apparent Oral Clearance (CL/F) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1
Clearance of a drug was a measure of the rate at which a drug was metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) was influenced by the fraction of the dose absorbed.
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1
Part 1: Apparent Volume of Distribution (Vz/F) of Talazoparib
Time Frame: Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35
Volume of distribution was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Vz/F was influenced by the fraction absorbed.
Cycle 1: 0.25, 0.5, 0.75, 1, 2, 3, 4, 5, 6, 8, 10, 24, 48, 72 and 96 hours postdose on Day 1 and Day 35

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Pfizer

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Medivation, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Medical Director, Medivation, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 3, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 31, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 30, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 26, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 28, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 1, 2011

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 10, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 29, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PRP-001
  • 2010-023062-40 (EudraCT Number)
  • C3441007 (Other Identifier: Alias Study Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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