CI

At a glance

ClinicalIndex Comparison Record
Phase 3Active· 813 enrolled / 813 target
Drug / intervention
Carboplatin +6 moredrug
Likely dose
Pembrolizumab IV over 30 minutes on day 1 of each 3-week cycle; paclitaxel IV over 3 hours on day 1 of each cycle; carboplatin IV over 30 minutes on day 1 of each cycle for 6 cyclesAI-extracted
Key inclusion· 8
  • Measurable stage III, stage IVA, stage IVB (with or without measurable disease), or recurrent endometrial cancer (with or without measurable disease)
  • Institutional MMR IHC testing results documented in pathology report
  • Histologically confirmed endometrioid, serous, dedifferentiated, clear cell, mixed epithelial, or NOS adenocarcinoma
  • ECOG performance status 0, 1, or 2
Key exclusion· 9
  • Prior anti-PD-1, anti-PD-L1, or anti-CTLA-4 therapy
  • Severe hypersensitivity to monoclonal antibodies, pembrolizumab, paclitaxel, or carboplatin
  • Active cancer-directed investigational study therapy within 4 weeks prior to registration
  • Immunodeficiency or systemic immunosuppressive therapy within 7 days prior to registration (except inhaled/topical steroids or physiologic doses)

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03914612
NCT03914612Phase 3ActiveUpdate Overdue (9.9/mo)Completion was 42mo ago

A Phase III Randomized, Placebo-Controlled Study of Pembrolizumab (MK-3475, NSC #776864) in Addition to Paclitaxel and Carboplatin for Measurable Stage III or IVA, Stage IVB or Recurrent Endometrial Cancer

National Cancer Institute (NCI)·interventional·Posted Apr 16, 2019·Updated Jun 15, 2026

In Brief

A Phase 3 clinical trial evaluating Carboplatin, Computed Tomography, and 5 other interventions for Endometrial Clear Cell Adenocarcinoma and 15 related conditions. Active but no longer recruiting, targeting 813 participants across 397 sites in 5 countries.

Signals

Enrollment appears stalled

Detailed Summary

This phase III trial studies how well the combination of pembrolizumab, paclitaxel and carboplatin works compared with paclitaxel and carboplatin alone in treating patients with endometrial cancer that is stage III or IV, or has come back after a period of improvement (recurrent). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Paclitaxel and carboplatin are chemotherapy drugs used as part of the usual treatment approach for this type of cancer. This study aims to assess if adding immunotherapy to these drugs is better or worse than the usual approach for treatment of this cancer.

Study Details

Timeline

Phase 3Active
2020202120222023202420252026
First PostedApr 16, 2019
Enrollment StartAug 22, 2019
Primary CompletionDec 16, 2022
Study CompletionSep 26, 2026
TodayJul 2, 2026
Enrollment to primary: 3.3 yearsPosted 7.2 years ago

Arms & Interventions

Arm I (placebo, paclitaxel, carboplatin)active_comparator

COMBINATION PHASE: Patients receive placebo IV over 30 minutes on day 1 of each cycle, paclitaxel IV over 3 hours on day 1 of each cycle, and carboplatin IV over 30-60 minutes on day 1 of each cycle. Treatment repeats every 3 weeks for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients with SD or PR who still have measurable disease may continue treatment for up to a total of 10 cycles (if deemed necessary by the treating physician) in the absence of disease progression or unacceptable toxicity. MAINTENANCE PHASE: Patients receive placebo IV over 30 minutes on day 1 of each cycle. Treatment repeats every 6 weeks for up to 14 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo CT scan throughout the study. On February 6, 2023, all patient treatment assignments were unblinded. Patients randomized to Arm 1 will not receive additional placebo infusions.

Drug: CarboplatinProcedure: Computed TomographyDrug: PaclitaxelOther: Placebo AdministrationOther: Quality-of-Life AssessmentOther: Questionnaire Administration
Arm II (pembrolizumab, paclitaxel, carboplatin)experimental

COMBINATION PHASE: Patients receive pembrolizumab IV over 30 minutes on day 1 of each cycle, paclitaxel IV over 3 hours on day 1 of each cycle, and carboplatin IV over 30 minutes on day 1 of each cycle. Treatment repeats every 3 weeks for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients with SD or PR who still have measurable disease may continue treatment for up to a total of 10 cycles (if deemed necessary by the treating physician) in the absence of disease progression or unacceptable toxicity. MAINTENANCE PHASE: Patients receive pembrolizumab IV over 30-60 minutes on day 1 of each cycle. Treatment repeats every 6 weeks for up to 14 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo CT scan throughout the study.

Drug: CarboplatinProcedure: Computed TomographyDrug: PaclitaxelBiological: PembrolizumabOther: Quality-of-Life AssessmentOther: Questionnaire Administration

Interventions

Carboplatindrug

Given IV

Computed Tomographyprocedure

Undergo CT scan

Paclitaxeldrug

Given IV

Pembrolizumabbiological

Given IV

Placebo Administrationother

Given IV

Quality-of-Life Assessmentother

Ancillary studies

Questionnaire Administrationother

Ancillary studies