Study to Evaluate Sacituzumab Govitecan in Combination With Talazoparib in Patients With Metastatic Breast Cancer.

  • STATUS
    Recruiting
  • End date
    Oct 31, 2024
  • participants needed
    75
  • sponsor
    Massachusetts General Hospital
Updated on 15 February 2022
measurable disease
metastasis
HER2
adjuvant therapy
antineoplastic
stage iv breast cancer
erbb2
invasive breast cancer
immunostimulant
mammogram

Summary

This research is studying the effect of Antibody-Drug Conjugate Sacituzumab Govitecan in Combination with the Poly (Adenosine Diphosphate [ADP]-Ribose) Polymerase (PARP) Inhibitor Talazoparib in Patients with Metastatic Triple-Negative Breast Cancer.

Description

This is a Phase I/II clinical trial. You are being asked to participate in the Phase I portion of the study. A Phase I clinical trial tests the safety of an investigational drug and also tries to define the appropriate dose of the investigational drug to use for further studies. "Investigational" means that the drug is being studied.

The U.S. Food and Drug Administration (FDA) has not approved sacituzumab govitecan as a treatment for any disease.

The FDA has not approved talazoparib for this specific disease, but it has been approved for other uses in breast cancer.

Sacituzumab govitecan is an antibody-drug conjugate which means it's made up of an antibody attached to an anticancer drug. An antibody is a protein normally made by the immune system (the system in the body that fights off diseases). Sacituzumab govitecan is believed to work by binding the antibody portion of the drug to the tumor(s) while the anticancer drug portion works to prevent the cancer cells from growing/spreading.

Talazoparib belongs to a group of drugs called PARP inhibitors. PARP is a protein that is involved with repairing damaged DNA (the genetic material of cells). Talazoparib is believed to work by inhibiting (stopping) the PARP proteins from working in the cancer cells so that the cancer cannot fix its damaged DNA.

The investigators believe that the combination of sacituzumab govitecan and talazoparib may help stop the cancer from growing and spreading by administering an anticancer drug directly to the cancerous tumor(s) through sacituzumab govitecan and by stopping the cancer's cells from fixing its damaged DNA through talazoparib.

Details
Condition Breast Cancer
Treatment Talazoparib, Sacituzumab govitecan
Clinical Study IdentifierNCT04039230
SponsorMassachusetts General Hospital
Last Modified on15 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Adult ( 18 years of age)
Histologically confirmed stage IV (metastatic) breast cancer
Participants must have biopsy proven ER negative (ER-), PR negative (PR-), HER2 negative, invasive breast cancer, by AJCC 7th edition staging. ER, PR, and HER2 positivity would be determined per institutional (local) guidelines
Pre- and postmenopausal women are eligible
ECOG performance status = 0-1
Measurable disease as per RECIST Version 1.1
Ability to understand and the willingness to sign a written informed consent document. Patient has signed the Informed Consent (ICF) prior to any screening procedures being performed and is able to comply with protocol requirements
At least 2 weeks beyond treatment (chemotherapy, targeted therapy, immunotherapy, and/or radiation therapy) or major surgery and recovered from all acute toxicities (adverse events from prior anti-cancer agents need to be grade 1 or lower; grade 2 alopecia or peripheral neuropathy is permitted)
At least 2 weeks beyond corticosteroids (however, low dose corticosteroids <20 mg prednisone or equivalent daily are permitted)
Patient has adequate bone marrow and organ function as defined by the following laboratory values at screening
Absolute neutrophil count 1.5 109/L
Platelets 100 109/L
Hemoglobin 10.0 g/dL
INR 1.5
creatinine clearance 60 mL/min
In the absence of liver metastases, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) <2.5 x ULN. If the patient has liver metastases, ALT and AST <5 x ULN
Total bilirubin 3.0 x ULN or direct bilirubin 1.5 x ULN in patients with well-documented Gilbert's Syndrome
Fasting plasma glucose <140 mg/dL / 7.7 mmol/L and Glycosylated Hemoglobin (HbA1c) 8% (both criteria must be met)

Exclusion Criteria

Participants who have received prior irinotecan or ADC backbone with SN-38 or topoisomerase-1 inhibitor
Participants who have had anti-cancer therapy including targeted therapy or chemotherapy or radiotherapy within 2 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study, or those who have not recovered from adverse events (clinically significant grade 2 or higher adverse events; grade 2 alopecia or peripheral neuropathy is permitted) due to prior anti-cancer agents
Participants with progressive CNS metastatic disease. Patients with stable CNS metastasis would be eligible, provided mets radiologically stable for at least one month, and patient is not actively taking steroids (more than 20 mg of prednisone or equivalent dose)
Current use of strong CYP3A inhibitors/inducers, or P-gp inhibitors within 7 days prior to randomization. For a list of strong CYP3A inhibitors/inducers and P-gp inhibitors, refer to Appendix C
Uncontrolled inter-current 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. Patient has impairment of gastrointestinal (GI) function or GI disease that may significantly alter the absorption of the study drugs (e.g., ulcerative diseases, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, or small bowel resection)
Clinically significant, uncontrolled heart disease and/or cardiac repolarization abnormality including any of the following
History of angina pectoris, symptomatic pericarditis, coronary artery bypass graft (CABG) or myocardial infarction within 6 months prior to study entry
Documented cardiomyopathy
History of cardiac failure, significant/symptomatic bradycardia, Long QT syndrome, family history of idiopathic sudden death or congenital long QT syndrome or any of the following
Known risk to prolong the QT interval or induce Torsade's de Pointes
Uncorrected hypomagnesemia or hypokalemia
Systolic Blood Pressure (SBP) >160 mmHg or <90 mmHg
Bradycardia (heart rate <50 at rest), by ECG or pulse
On screening, inability to determine the QTcF interval on the ECG (i.e.: unreadable or not interpretable) or QTcF >450 screening ECG
HIV-positive participants on combination antiretroviral therapy are ineligible. These participants are at increased risk of lethal infections when treated with marrow-suppressive therapy. Appropriate studies will be undertaken in participants receiving combination antiretroviral therapy when indicated
Pregnant women are excluded from this study because the safety of study medications is not established in pregnant women
Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, or fertile men, unless they are using highly effective methods of contraception throughout the study and after study drug discontinuation (till 8 weeks in women and six months in males, post-study). Male patient should not donate sperm while on treatment and up to 6 months after last dose. Women are considered post-menopausal and not of child bearing potential if they have had 12 months of natural (spontaneous) amenorrhea with an appropriate clinical profile (e.g. age appropriate, history of vasomotor symptoms) or have had surgical bilateral oophorectomy (with or without hysterectomy) or tubal ligation at least six weeks ago. In the case of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow up hormone level assessment is she considered not of child bearing potential. Highly effective contraception methods include
Total abstinence when this is in line with the preferred and usual lifestyle of the patient. Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception
Female sterilization (have had surgical bilateral oophorectomy with or without hysterectomy), total hysterectomy, or tubal ligation at least six weeks before taking study treatment. In case of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow up hormone level assessment
Use of oral, injected or implanted hormonal methods of contraception or placement of an intrauterine device (IUD) or intrauterine system (IUS), or other forms of hormonal contraception that have comparable efficacy (failure rate <1%), for example hormone vaginal ring or transdermal hormone contraception
In case of use of oral contraception, women should have been stable on the same pill for a minimum of 3 months before taking study treatment. Note: While oral contraceptives are allowed, they should be used in conjunction with a barrier method of contraception due to unknown effect of drug-drug interaction
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