๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2025-12-09

A Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care (SOC) Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer (NCT03602859)

A Randomized, Double-blind, Phase 3 Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer

๐Ÿ”ต Active, Not Recruiting Phase3 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: Tesaro, Inc.

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

Ovarian cancer is a heterogeneous disease, characterized by complex molecular and genetic changes. The high expression of vascular endothelial growth factor (VEGF) receptor, programmed death receptor ligands 1 (PD-L1) expression, and deoxyribonucleic acid (DNA) damage in ovarian tumors provide several targets for treatment and maintenance of disease response. Given the unmet medical need of participants with advanced or metastatic ovarian cancer, this study design will enable investigators to provide participants with current SOC for ovarian cancer for the duration of the study. This is a global, multicenter, randomized, double-blind, controlled Phase 3 study that will primarily compare the progression-free survival (PFS) for participants receiving dostarlimab with SOC chemotherapy +/- bevacizumab followed by niraparib and dostarlimab maintenance +/- bevacizumab versus participants receiving SOC with chemotherapy followed by niraparib maintenance. This comparison will be investigated in participants of newly diagnosed stage III or IV advanced non-mucinous epithelial ovarian cancer participants and also to compare PFS of all participants with Stage III or IV high-grade non-mucinous epithelial ovarian cancer treated with platinum-based combination therapy, dostarlimab (TSR-042), and niraparib to SOC platinum-based combination therapy. The currently recommended SOC therapy for the first line treatment of Stage III or IV ovarian cancer is the combination of paclitaxel and carboplatin, with or without concurrent and maintenance bevacizumab. Participants will receive SOC during the chemotherapy Run-In period (cycle 1) before randomization to study treatment (cycle 2). Concurrent bevacizumab use must be determined prior to randomization at cycle 2.

Who can join: Review the eligibility criteria below.

Location: GSK Investigational Site โ€” Anchorage, Alaska

Age range: 18 Years

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

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Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (182 Sites)

Showing the first 25 of 182 sites.

  • GSK Investigational Site โ€” Anchorage, Alaska
  • GSK Investigational Site โ€” Phoenix, Arizona
  • GSK Investigational Site โ€” Tucson, Arizona
  • GSK Investigational Site โ€” Los Angeles, California
  • GSK Investigational Site โ€” Los Angeles, California
  • GSK Investigational Site โ€” Newport Beach, California
  • GSK Investigational Site โ€” Farmington, Connecticut
  • GSK Investigational Site โ€” Hartford, Connecticut
  • GSK Investigational Site โ€” Gainesville, Florida
  • GSK Investigational Site โ€” Jacksonville, Florida
  • GSK Investigational Site โ€” Geneva, Illinois
  • GSK Investigational Site โ€” Warrenville, Illinois
  • GSK Investigational Site โ€” Zion, Illinois
  • GSK Investigational Site โ€” Covington, Louisiana
  • GSK Investigational Site โ€” New Orleans, Louisiana
  • GSK Investigational Site โ€” Shreveport, Louisiana
  • GSK Investigational Site โ€” Scarborough, Maine
  • GSK Investigational Site โ€” Baltimore, Maryland
  • GSK Investigational Site โ€” Silver Spring, Maryland
  • GSK Investigational Site โ€” Boston, Massachusetts
  • GSK Investigational Site โ€” Springfield, Massachusetts
  • GSK Investigational Site โ€” Worcester, Massachusetts
  • GSK Investigational Site โ€” Minneapolis, Minnesota
  • GSK Investigational Site โ€” Minneapolis, Minnesota
  • GSK Investigational Site โ€” Billings, Montana

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—