Trial results from GARNET

NCCN recommendation Icon

NCCN Guidelines® recommend dostarlimab-gxly (JEMPERLI) as a treatment option for patients with dMMR recurrent or advanced endometrial carcinoma that has progressed on or following prior treatment with a platinum-containing regimen1

All recommendations are category 2A unless otherwise indicated.

Category 2A - Based upon lower-level evidence, there is uniform NCCN consensus that the intervention is appropriate.

NCCN=National Comprehensive Cancer Network.

JEMPERLI was studied in the largest single-agent immunotherapy trial dataset in endometrial cancer, GARNET2,3

GARNET was a global, multicenter, multiple cohort, open-label study2

Patient Population2

  • Recurrent or advanced endometrial cancer that had progressed on or following treatment with a platinum-containing regimen
  • Tumors that were mismatch repair deficient (dMMR) as determined by IHC testing. The dMMR tumor status was retrospectively confirmed using the VENTANA MMR RxDx Panel assay
  • Efficacy analysis included 141 patients, and safety analysis included 150 patients

Patients received: JEMPERLI 500 mg IV every 3 weeks for 4 doses, followed by 1000 mg IV every 6 weeks2*

Major Efficacy Endpoints2

  • Overall response rate (ORR)
  • Duration of response (DOR)
  • *Treatment continued until disease progression or unacceptable toxicity.2
  • As assessed by blinded independent central review (BICR) according to the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.2
Key Inclusion Criteria
  • Recurrent or advanced endometrial cancer
  • dMMR endometrial cancer as determined by IHC testing
  • Progression on or after platinum-containing regimen
  • ≤2 lines of prior anticancer treatment for recurrent or advanced disease
Key Exclusion Criteria
  • Prior treatment with PD-1/PD-L1–blocking antibodies or other immune checkpoint inhibitor therapy
  • Autoimmune disease that required systemic treatment within 2 years
  • 89% of patients had received prior anticancer surgery and 71% had received prior anticancer radiotherapy. Approximately 37% of patients had 2 lines or more of prior anticancer treatment in total.2
  • IHC=immunohistochemistry; IV=intravenous; PD-1=programmed death receptor 1; PD-L1=programmed death ligand 1.

GARNET Cohort A1: Patient baseline characteristics2,4

Efficacy population baseline characteristics (n=141)2

Of the 150 patients in the study with dMMR endometrial cancer who received JEMPERLI, 141 were included in the efficacy analysis.

GARNET cohort A1 patient baseline characteristics and disease histologies infographic
  • Other includes dedifferentiated, endometrial adenocarcinoma, endometrial adenocarcinoma NOS, endometrial neuroendocrine carcinoma, high-grade uterine carcinoma, and undifferentiated clear cell carcinoma.
  • NOS=not otherwise specified.
GARNET Cohort A1 Patient Baseline Characteristics Infographic

ECOG=Eastern Cooperative Oncology Group.

GARNET Cohort A1 Patient Baseline Characteristics Infographic 2

Overall Response Rate

JEMPERLI established efficacy over ≥2 years of follow-up2

Proven efficacy at median follow-up of 27.9 months2§

The largest single-agent immunotherapy trial dataset in dMMR recurrent or advanced endometrial cancer (n=141)2,3

GARNET Cohort A1 overall response rate graphic
  • Overall response rates in patients based on lines of prior therapy4:
    • 43.8% (n=39) in those who received 1 prior line (95% CI: [33.3, 54.7])
    • 48.1% (n=25) in those who received ≥2 prior lines (95% CI: [34.0, 62.4])
    • Due to small sample sizes and wide confidence intervals, results should be interpreted with caution
  • Responses to JEMPERLI were seen across histologies, including serous, Grade 3 endometrioid, mixed, unspecified, clear cell, undifferentiated, and squamous carcinoma3
  • §Measured from time of first response.
  • CI=confidence interval; CR=complete response; PR=partial response.

Duration of Response

JEMPERLI has shown durable response over ≥2 years of follow-up2

At 27.9 months median follow-up,II median duration of response was not reached

85.9% of responding patients demonstrated a duration of response ≥1 yearII

54.7% of responding patients demonstrated a duration of response >2 yearsII

  • IIMeasured from time of first response.

Treatment duration of responders4

GARNET Cohort A1 duration of response graph
Icon: JEMPERLI (dostarlimab-gxly) Safety Profile

Safety profile from the
GARNET trial

REVIEW GARNET SAFETY PROFILE

Icon: JEMPERLI (dostarlimab-gxly) Dosing and Administration

JEMPERLI dosing and administration

VIEW DOSING

Icon: JEMPERLI (dostarlimab-gxly) Support

Learn about support for JEMPERLI at every step

SEE REIMBURSEMENT SUPPORT