Mednet Logo

How do you decide between 1st line PARPi or immunotherapy in a patient with metastatic gBRCA mutated TNBC?

Received neoadjuvant ddAC/T followed by adjuvant capecitabine for residual disease and found to have metastatic pulmonary nodules within months of surgery. Are there scenarios where you would consider combining therapy?
Community PollStarted

What is your general 1st line approach in a patient with metastatic germline BRCA mutated TNBC?

67 physicians have voted

Join Mednetto vote and see how they answered.

4 Answers
Mednet Member
Mednet MemberInvited Expert
Medical Oncology · Dana-Farber Cancer Institute
Answered on

In a patient with a gBRCAm that is PDL1+, I generally consider chemotherapy + checkpoint inhibition in the first line setting given the known survival benefit upfront, and since it is unknown if this benefit with chemotherapy + immunotherapy would be seen in the later line setting. We do have data t...

Join for free or sign in to see the full answer

Mednet Member
Mednet MemberInvited Expert
Medical Oncology · H Lee Moffitt Cancer Center, University of South Florida
Answered on · Updated on

We updated the NCCN breast guidelines with a new section for metastatic TNBC. The guidelines place a preference to do pembrolizumab in a CPS>=10 patient first regardless of their BRCA status. If I knew they were BRCA1 mutated and CPS over 9, I would probably prioritize using carbo/gem plus pembroliz...

Join for free or sign in to see the full answer

Mednet Member
Mednet Member
Medical Oncology · UCLA Jonsson Comprehensive Cancer Center
Answered on

I would have treated a patient with gBRCA+ TNBC with a regimen that includes a platinum agent in the neoadjuvant setting.

With current FDA approval for olaparib in the adjuvant setting, this is a patient who now could have been treated with neoadjuvant ddAC/T followed by adjuvant olaparib for failur...

Join for free or sign in to see the full answer

Mednet Member
Mednet Member
Medical Oncology · OHSU, Knight Cancer Institute
Answered on

I tend to consider immunotherapy first if PD-L1 CPS>=10, unless toxicity is a major issue in a particular patient. In that case, PARPi would be my first choice.

Join for free or sign in to see the full answer