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REGNRegeneron PharmaceuticalsSigning up patients

A Study to Find Out How Safe REGN5668 is and How Well it Works In Adult Women When Given With Either Cemiplimab, or Cemiplimab + Fianlimab, or Ubamatamab

Ovarian Cancer · Fallopian Tube Cancer · Primary Peritoneal Cancer · Endometrial Cancer

5Calmworry score, out of 100

No strong warning signs right now. The score counts warning signs; it is not a prediction.

Why this score

  • 5 insiders sold shares within a month

    Since Nov 4, 2026 · was worth 5, fading over time

    +4.8
Worry score5

Score over time

Stage
Phase 1/2
Patients
612 (planned)
Started
Dec 8, 2020
Main results expected
Nov 8, 2028
Fully finished
Nov 8, 2028
Results posted
not yet

What counts as success

The trial's main goal(s), called the “primary outcome.”

  • Incidence of Dose Limiting Toxicities (DLT)

    Measured over: 42 days

  • Incidence of DLTs

    Measured over: 21 days post combination administration

  • Incidence of Treatment-Emergent Adverse Events (TEAEs)

    Measured over: Through study completion, up to 5 years

  • Incidence of Serious Adverse Events (SAEs)

    Measured over: Through study completion, up to 5 years

  • Incidence of deaths

    Measured over: Through study completion, up to 5 years

  • Incidence of laboratory abnormalities (Grade 3 or higher per National Cancer Institute Common Terminology Criteria for Adverse Events [NCI-CTCAE] version 5.0 [v5.0])

    Measured over: Through study completion, up to 5 years

  • Concentrations of REGN5668 in serum when dosed alone and in combination with cemiplimab or ubamatamab

    Measured over: Through study completion, up to 5 years

  • Objective Response Rate (ORR) defined by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 (Eisenhauer, 2009) of REGN5668 in combination with cemiplimab, cemiplimab + fianlimab, or ubamatamab (separately by cohort and combination)

    Measured over: Through study completion, up to 5 years

Changes Tremor has spotted

No changes since Tremor started watching this trial.
Show details (technical version)

Score inputs

  • insider_selling_cluster: base 5, now 4.8, since 2026-11-04, fades (half-life)

Raw record changes

  • none yet

Trial ID NCT04590326 · record last updated 2026-09-24 · checked 2026-11-09 15:47 UTC

See the official record on ClinicalTrials.gov (NCT04590326) ↗