Status of HRD That Lead to a Benefit From Olaparib in Combination With Bevacizumab (STROBE Trial)

Summary

Background: The study aims to address the challenge of accurately identifying patients with ovarian cancer who would benefit from poly-ADP ribose inhibitors (PARPi) as first-line maintenance therapy. While BRCA1/2-mutated epithelial ovarian cancer (EOC) patients have shown significant benefits from PARPi treatment, the efficacy in homologous recombination deficient (HRD) patients remains inconclusive. Current assays used to estimate HR status do not effectively differentiate between patients who benefit most from PARPi and those who do not, making it inefficient to treat all patients. There is a need for a more accurate HR status testing method to optimize PARPi benefit. This study aims to assess the performance of the VHIO-CARD-300 test in determining HR status compared to SOPHiA DDM™ Dx HRD Solution. Summary: The study is a prospective, non-randomized trial designed to evaluate the concordance of the VHIO-CARD-300 test in establishing HR status compared to SOPHiA DDM™ Dx HRD Solution. Additionally, it aims to assess the association between HRD status determined by the VHIO-CARD-300 test and treatment efficacy. Patients with advanced FIGO stage III-IV high grade serous or endometrioid ovarian, fallopian tube, or peritoneal cancer will be invited to participate. Those eligible will undergo testing with both VHIO-CARD-300 and SOPHiA DDM™ Dx HRD Solution. Patients classified as HRD positive will receive olaparib in combination with bevacizumab, while others will receive bevacizumab alone. Treatment will be administered according to approved doses, with follow-up evaluations conducted until RECIST progression.

Timeline

Start

2024-02-06

Primary completion

2024-03-01

Completion

2025-09

Drugs

Indications