Phase 2 Breast Cancer Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People diagnosed with metastatic breast cancer that has a specific type of BRCA1 or BRCA2 gene change (called a "deleterious somatic mutation") detected through an approved blood test — not an inherited (germline) mutation.
- People with triple-negative breast cancer (a specific subtype where the cancer tests negative for certain receptors) whose cancer has continued to grow after at least one prior chemotherapy treatment for metastatic disease.
- People with hormone receptor-positive, HER2-negative breast cancer whose cancer has continued to grow after at least one prior hormone-based treatment for metastatic disease, or where hormone-based treatment is considered unsuitable.
- People who have measurable or evaluable signs of the disease that can be tracked during the trial.
- People who have received any number of prior treatments before joining.
- People who may have received up to one prior platinum-based chemotherapy, as long as the cancer did not progress during or within 6 months after finishing that treatment.
- People who are at least 2 weeks past their last cancer treatment and have recovered from most side effects (mild nerve-related side effects up to a certain level may still be acceptable — confirm with trial site).
- People who are at least 2 weeks past their last radiation therapy and have recovered from most side effects.
- People aged 18 or older at the time of signing the consent form.
- People with a general health status that meets a standard medical rating of 0, 1, or 2 on a scale used to measure ability to carry out daily activities (confirm with trial site).
- People whose blood and organ function tests (including blood cell counts, kidney function, and liver function) fall within acceptable ranges, tested within 10 days before starting treatment.
- People with a history of cancer spread to the brain, if that condition has been stable for at least one month after whole-brain radiation, or at least 2 weeks after targeted (stereotactic) radiation, or at least one month after surgery — and who are not currently needing steroid medications to manage it.
- Women who could become pregnant must have a negative pregnancy test within 72 hours before starting the study drug.
- Women who could become pregnant must use an acceptable method of contraception throughout the study and for 7 months after the last dose of the study drug.
- Male participants must use an adequate method of contraception from the first dose through 7 months after the last dose, and must not donate sperm during this time.
- People who are willing and able to provide written informed consent.
Who may not be able to join:
- People whose cancer has a BRCA1 or BRCA2 mutation that was inherited (germline mutation) rather than developed in the tumour (somatic mutation).
- People whose BRCA result only shows a "variant of unknown significance" or a non-harmful BRCA change, without a confirmed harmful somatic mutation.
- People who have previously been treated with a type of drug called a PARP inhibitor.
- People who received any chemotherapy, targeted therapy, or radiation within 2 weeks before the trial start date and have not yet recovered from related side effects (with some exceptions for mild nerve-related side effects).
- People who participated in another clinical trial involving an investigational drug within 4 weeks before starting this trial.
- People who have had major surgery and have not yet fully recovered.
- People with another cancer that is currently progressing or requires active treatment (certain skin cancers and early-stage cervical changes may be exceptions — confirm with trial site).
- People with known brain or spinal fluid involvement from their cancer that has not been treated.
- People with known HIV infection.
- People with known active Hepatitis B or Hepatitis C infection.
- People currently taking certain medications that strongly affect how drugs are processed by the body (known as strong P-glycoprotein inhibitors — confirm with trial site).
- People currently on any other cancer treatment, including chemotherapy, hormone therapy, immunotherapy, or another investigational therapy.
- People who are pregnant, breastfeeding, or planning to become pregnant or father a child during the trial period and for 7 months after the last dose.
- People with known psychiatric conditions or substance use disorders that may make it difficult to follow the trial requirements.
- People with any other medical condition, past treatment, or lab result that the treating doctor believes could affect the trial results or make participation unsafe.
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Neelima Vidula, MD, Massachusetts General Hospital
Phone: 617-724-4000
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Median Progression Free Survival
Can't join this trial?
Data last synced from ClinicalTrials.gov: 23 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.