Skip to content
← Full study record

NCT03517449 · OUTCOME

Overall Survival (OS) in pMMR Participants

Lenvatinib in Combination With Pembrolizumab Versus Treatment of Physician's Choice in Participants With Advanced Endometrial Cancer (MK-3475-775/E7080-G000-309 Per Merck Standard Convention [KEYNOTE-775]) · Source last updated 2026-03-19

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
Months
Interval / dispersion
95% Confidence Interval
Time frame
Up to approximately 43 months

What was measured

OS was defined as the time from the date of randomization to the date of death due to any cause. Participants who were lost to follow-up and those who were alive at the date of data cut-off were censored at the date the participant was last known alive, or date of data cut-off, whichever occurred first.

Analysis population: Analysis population consisted of ITT population which included all randomized participants. Data is reported for pMMR participants.

Groups in this outcome

Lenvatinib 20 mg + Pembrolizumab 200 mg

Participants with Endometrial cancer (EC) received lenvatinib 20 milligrams (mg) orally, once daily, plus pembrolizumab 200 mg intravenously, every 3 weeks in each 21-day cycle. Participants continued to receive treatment until disease progression, development of unacceptable toxicity, withdrawal of consent, completion of 35 treatments (approximately 2 years) with pembrolizumab, or sponsor termination of the study

Treatment of Physician's Choice(TPC):Doxorubicin or Paclitaxel

Participants with EC received either doxorubicin 60 milligrams per square meter (mg/m\^2) intravenously, every 3 weeks, in each 21-day treatment cycle, or paclitaxel 80 mg/m\^2 intravenously, weekly (3 weeks on/1 week off), in each 28-day treatment cycle. Participants continued to receive treatment until a lifetime cumulative dose of 500 mg/m\^2 doxorubicin, a maximum dose of paclitaxel per standard of care, or until disease progression, development of unacceptable toxicity, withdrawal of consent, or sponsor termination of the study.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Lenvatinib 20 mg + Pembrolizumab 200 mg346
Treatment of Physician's Choice(TPC):Doxorubicin or Paclitaxel351

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Lenvatinib 20 mg + Pembrolizumab 200 mg18.0Not reported14.920.5Not reported
Treatment of Physician's Choice(TPC):Doxorubicin or Paclitaxel12.2Not reported11.014.1Not reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    0.58
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.83
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    Regression, Cox method
    p Value
    < 0.0001
    p Value Comment
    One-sided p-value based on log-rank test stratified by ECOG performance status, geographic region, and prior history of pelvic radiation.
    param Type
    Hazard Ratio (HR)
    param Value
    0.70
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.58
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.83
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    Regression, Cox method
    p Value
    < 0.0001
    p Value Comment
    One-sided p-value based on log-rank test stratified by ECOG performance status, geographic region, and prior history of pelvic radiation.
    param Type
    Hazard Ratio (HR)
    param Value
    0.70
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        14.9
        upper Limit
        20.5
        value
        18.0
      2. group Id
        OG001
        lower Limit
        11.0
        upper Limit
        14.1
        value
        12.2
denoms
  1. counts
    1. group Id
      OG000
      value
      346
    2. group Id
      OG001
      value
      351
    units
    Participants
description
OS was defined as the time from the date of randomization to the date of death due to any cause. Participants who were lost to follow-up and those who were alive at the date of data cut-off were censored at the date the participant was last known alive, or date of data cut-off, whichever occurred first.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with Endometrial cancer (EC) received lenvatinib 20 milligrams (mg) orally, once daily, plus pembrolizumab 200 mg intravenously, every 3 weeks in each 21-day cycle. Participants continued to receive treatment until disease progression, development of unacceptable toxicity, withdrawal of consent, completion of 35 treatments (approximately 2 years) with pembrolizumab, or sponsor termination of the study
    id
    OG000
    title
    Lenvatinib 20 mg + Pembrolizumab 200 mg
  2. description
    Participants with EC received either doxorubicin 60 milligrams per square meter (mg/m\^2) intravenously, every 3 weeks, in each 21-day treatment cycle, or paclitaxel 80 mg/m\^2 intravenously, weekly (3 weeks on/1 week off), in each 28-day treatment cycle. Participants continued to receive treatment until a lifetime cumulative dose of 500 mg/m\^2 doxorubicin, a maximum dose of paclitaxel per standard of care, or until disease progression, development of unacceptable toxicity, withdrawal of consent, or sponsor termination of the study.
    id
    OG001
    title
    Treatment of Physician's Choice(TPC):Doxorubicin or Paclitaxel
param Type
MEDIAN
population Description
Analysis population consisted of ITT population which included all randomized participants. Data is reported for pMMR participants.
reporting Status
POSTED
time Frame
Up to approximately 43 months
title
Overall Survival (OS) in pMMR Participants
type
PRIMARY
unit Of Measure
Months

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice