- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04756765
Talazoparib Monotherapy in PALB2 Mutation Associated Advanced Breast Cancer
A Phase 2 Clinical Trial of Talazoparib Monotherapy for PALB2 Mutation Associated Advanced Breast Cancer
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Primary Objectives: To evaluate whether talazoparib monotherapy can induce a 30% rate of objective response in subjects with advanced breast cancer associated with a PALB2 mutation.
Secondary Objective(s)
- To evaluate the safety of talazoparib in subjects with advanced PALB2 mutation associated breast cancer
- To evaluate the progression free survival (PFS) of talazoparib monotherapy in subjects with advanced PALB2 mutation associated breast cancer
- To evaluate the clinical benefit rate (CBR) of talazoparib monotherapy in subjects with advanced PALB2 mutation associated breast cancer
- To evaluate the ability of circulating tumor DNA (ctDNA) to identify and characterize the nature of PALB2 mutations at baseline and upon progression in subjects with advanced PALB2 mutation associated breast cancer treated with talazoparib monotherapy
- To evaluate patient reported quality of life on talazoparib monotherapy
Study Type
Enrollment (Estimated)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Nuzhat Shaikh
- Phone Number: 650-723-0659
- Email: njshaikh@stanford.edu
Study Locations
-
-
California
-
Stanford, California, United States, 94305
- Recruiting
- Stanford University
-
Contact:
- Nuzhat Shaikh
- Phone Number: 650-723-0659
- Email: njshaikh@stanford.edu
-
Principal Investigator:
- Melinda Telli, MD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Histologically confirmed metastatic or recurrent HER2 negative breast cancer (IHC or fluorescence in situ hybridization (FISH) per ASCO/CAP guidelines).
- Deleterious or suspected deleterious mutation in PALB2 assessed by Clinical Laboratory Improvement Amendments (CLIA) approved tumor next generation sequencing (NGS) or germline assay.
- Women and men ≥ 18 years of age.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.
- All clinically significant toxic effects of prior cancer therapy resolved to Grade ≤ 1 by the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0 (NCI CTCAE, v 5.0), except alopecia and G2 neuropathy.
- Measurable disease per RECIST v1.115 (CT CAP with contrast and bone scan or positron emission tomography computer tomography (PET/CT) with IV contrast needed within 28 days of Cycle 1 Day 1. If patients have a history of brain metastases, a MRI brain or CT head with contrast is required).
- A minimum 21 day wash out from previous treatment is required.
- No evidence of progression on platinum (e.g., carboplatin or cisplatin) or within 8 weeks of last platinum dose
Adequate hematologic function
- Absolute neutrophil count (ANC) ≥ 1,500 cells/μL (≥ 1,500/mm3)
- Hemoglobin ≥ 9.0 g/dL with last transfusion at least 14 days before Day 1 of study drug
- Platelets ≥ 100,000 cells/μL (≥ 100,000/mm3)
Adequate hepatic function
- Bilirubin ≤ 1.5 times the specific institutional upper limit of normal (ULN). Exception: If Gilbert's syndrome; then ≤ 5 times ULN.
- Aspartate transaminase (AST) and alanine transaminase (ALT) each ≤ 2.5 x ULN; if liver function abnormalities are due to hepatic metastasis, then AST and ALT ≤ 5 x ULN
Adequate renal function
- Serum creatinine ≤ 1.5 x ULN; or
- Calculated creatinine clearance > 50 mL/min using the Cockcroft Gault formula.
- Able to take oral medications
- Received 0 3 prior therapies for advanced disease
- Women of childbearing potential (WOCBP) must have a negative urine or serum pregnancy test and be willing to have additional urine pregnancy tests during the study. Women considered not of childbearing potential include those who have had no menstrual period for at least 1 year and have an estradiol in the postmenopausal range, or had tubal ligation at least 1 year prior to screening, or who have had total hysterectomy or bilateral oophorectomy.
- WOCBP must agree to use effective contraception as of C1D1 and for 3 months after the last dose.
- Male participants and their female partners of child bearing potential must be willing to use an appropriate method of contraception during the study and for 3 months after the last dose.
- Willing and able to provide written, signed informed consent after the nature of the study has been explained, and prior to any research related procedures
- Willing and able to comply with all study procedures
- Adequate archival or fresh tumor sample from metastatic biopsy site; archival tumor from the primary breast tumor may be submitted if metastatic biopsy is not available and/or infeasible
Exclusion Criteria:
- Breast cancer amenable to curative treatment.
- Prior treatment with a PARP inhibitor.
- Deleterious or suspected deleterious germline or somatic BRCA1 or BRCA2 gene mutation. Patients with variants of unknown significance will be eligible.
- Active Brain metastases OR leptomeningeal carcinomatosis. EXCEPTION: Adequately treated brain metastases documented by baseline CT or MRI scan that have not progressed since previous scans and do not require corticosteroids (prednisone 5 mg/day or equivalent allowed) for management of central nervous system (CNS) symptoms. A repeat CT or MRI following the identification of CNS metastases (obtained at least 2 weeks after definitive therapy) must document adequately treated brain metastases.
- Pregnant or breastfeeding patients.
- Other malignancy that is either active or for which patient has received treatment in the last three years excluding non melanoma skin cancer and carcinoma in situ of the cervix or breast.
- Known active hepatitis B or hepatitis C.
- Investigational agents within 28 days of C1D1.
- Radiation therapy within 14 days of C1D1.
- Major surgery within 21 days of C1D1.
Concurrent disease or condition that would interfere with study participation or safety, such as any of the following:
a. Active, clinically significant infection either grade > 2 by National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v5.0 or requiring the use of parenteral anti microbial agents within 7 days of C1D1.
- Clinically significant bleeding diathesis or coagulopathy.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Talazoparib Arm
Talazoparib 1 mg/day for 24 cycles (28 days per cycle), continuing until withdrawn or discontinued, eg, until RECIST 1.1 progression or unacceptable toxicity.
|
Talazoparib1 mg/day is to be administered orally on a continuous dosing schedule.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Objective response rate (ORR)
Time Frame: 8 weeks +/-1 week
|
Response to treatment will be assessed as the number and proportion of participants who achieve either a confirmed complete response (CR) or partial response (PR). The outcome is reported as numbers without dispersion. Clinical response will be assessed as follows. CR: Complete disappearance of all clinical evidence of disease PR: Decrease in size or amount of measurable disease lesions Progressive disease (PD): Worsening of lesions; appearance of new lesions; or recurrence of lesions Stable disease (SD): Disease status that is neither CR, PR, nor PD. |
8 weeks +/-1 week
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinical Benefit Rate (CBR)
Time Frame: 8 weeks +/- 1 week
|
Clinical benefit rate (CBR) will be reported as the number and proportion of participants who achieve CR, PR or Stable Disease (SD) 6 months.
The outcome is reported as numbers without dispersion.
|
8 weeks +/- 1 week
|
Progression-free survival (PFS)
Time Frame: 8 weeks +/- 1 week
|
Median progression free survival (PFS) will be assessed as the period of survival from therapy initiation without the development of progressive disease per RECIST 1.1.
The outcome is reported as a number without dispersion.
|
8 weeks +/- 1 week
|
Patient-reported Quality of Life (QoL)
Time Frame: 8 weeks +/- 1 week
|
Change from Baseline in Global Health Status/Quality of Life (QoL) Measured by European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ C30) EORTC QLQ C30 has 30 questions.
First 28 questions evaluate 5 functional scales and 3 symptom scales and other single items.
Each question assessed on 4 point scale (1=not at all, 2=a little, 3=quite a bit, 4=very much); functional scales: higher score = better level of functioning; symptom scale: higher score = more severe symptoms; for single items: higher score= more severe problem.
Last 2 questions evaluate global health status (GHS)/QoL.
Each question is assessed on 7 point scale (1=very poor to 7=excellent).
Scores averaged, transformed to 0-100 scale; higher score means a better quality of life/better level of functioning.
The outcome will be reported as the median QoL score with standard deviation.
|
8 weeks +/- 1 week
|
Number of participants with Treatment-related Adverse Events ≥ Grade 3
Time Frame: 3 years
|
Toxicity will be assessed as adverse events that are severe or greater (≥ Grade 3), and possibly, probably, or definitely related to talazoparib.
The outcome will be reported as the total number of qualifying events, a number without dispersion.
|
3 years
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Melinda Telli, Stanford Universiy
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- IRB-59141
- BRS0126 (Other Identifier: OnCore)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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