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NCT02655016 · OUTCOME

Overall Survival

A Study of Niraparib (GSK3985771) Maintenance Treatment in Participants With Advanced Ovarian Cancer Following Response on Front-Line Platinum-Based Chemotherapy · Source last updated 2026-03-10

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 34 months

What was measured

Overall survival was defined as the time from the date of randomization to the date of death by any cause. Median and 95% CI are presented for overall survival interim analysis.

Analysis population: ITT Population

Groups in this outcome

Placebo

Participants received placebo matching niraparib 300 milligram (mg) (3×100 mg capsules) (fixed dose) once daily (QD) orally beginning on Day 1 of every cycle (each cycle of 28-days) in a double-blind fashion until a modified starting dose regimen was implemented in protocol amendment. After the protocol amendment, participants received placebo based upon the participant's Baseline body weight or Baseline platelet count (individualized dose): 300 mg (3×100 mg capsules for participants with a Baseline body weight \>=77 kilogram \[kg\] and Baseline platelet count \>=150,000 per microliter \[μL\]) or 200 mg (2×100 mg capsules for participants with a Baseline body weight \<77 kg or Baseline platelet count \<150,000 per μL).

Niraparib

Participants received niraparib 300 mg (3×100 mg capsules) (fixed dose) QD orally beginning on Day 1 of every cycle (each cycle of 28-days) in a double-blind fashion until a modified starting dose regimen was implemented in protocol amendment. After the protocol amendment, participants received niraparib based upon the participant's Baseline body weight or Baseline platelet count (individualized dose): 300 mg (3×100 mg capsules for participants with a Baseline body weight \>=77 kg and Baseline platelet count \>=150,000 per μL) or 200 mg (2×100 mg capsules for participants with a Baseline body weight \<77 kg or Baseline platelet count \<150,000 per μL).

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

Analysis denominator · Participants

GroupSource count
Placebo246
Niraparib487

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
PlaceboNANot reported25.0NANA indicates median and 95% CI (upper limit) could not be derived, as \<50% of participants experienced the event within the treatment arm.
Niraparib30.3Not reported30.3NANA indicates 95% CI (upper limit) could not be derived, as \<75% of participants experienced the event within the treatment arm.

Source statistical analyses

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

  1. ci Lower Limit
    0.442
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.106
    estimate Comment
    If hazard ratio was found to be \<1 then niraparib can be considered as superior to placebo.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.1238
    p Value Comment
    p-value was calculated based on stratified log-rank test using randomization stratification factors: administration of neoadjuvant chemotherapy, best response to platinum therapy and HRD status.
    param Type
    Hazard Ratio (HR)
    param Value
    0.70
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.442
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.106
    estimate Comment
    If hazard ratio was found to be \<1 then niraparib can be considered as superior to placebo.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.1238
    p Value Comment
    p-value was calculated based on stratified log-rank test using randomization stratification factors: administration of neoadjuvant chemotherapy, best response to platinum therapy and HRD status.
    param Type
    Hazard Ratio (HR)
    param Value
    0.70
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. comment
        NA indicates median and 95% CI (upper limit) could not be derived, as \<50% of participants experienced the event within the treatment arm.
        group Id
        OG000
        lower Limit
        25.0
        upper Limit
        NA
        value
        NA
      2. comment
        NA indicates 95% CI (upper limit) could not be derived, as \<75% of participants experienced the event within the treatment arm.
        group Id
        OG001
        lower Limit
        30.3
        upper Limit
        NA
        value
        30.3
denoms
  1. counts
    1. group Id
      OG000
      value
      246
    2. group Id
      OG001
      value
      487
    units
    Participants
description
Overall survival was defined as the time from the date of randomization to the date of death by any cause. Median and 95% CI are presented for overall survival interim analysis.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received placebo matching niraparib 300 milligram (mg) (3×100 mg capsules) (fixed dose) once daily (QD) orally beginning on Day 1 of every cycle (each cycle of 28-days) in a double-blind fashion until a modified starting dose regimen was implemented in protocol amendment. After the protocol amendment, participants received placebo based upon the participant's Baseline body weight or Baseline platelet count (individualized dose): 300 mg (3×100 mg capsules for participants with a Baseline body weight \>=77 kilogram \[kg\] and Baseline platelet count \>=150,000 per microliter \[μL\]) or 200 mg (2×100 mg capsules for participants with a Baseline body weight \<77 kg or Baseline platelet count \<150,000 per μL).
    id
    OG000
    title
    Placebo
  2. description
    Participants received niraparib 300 mg (3×100 mg capsules) (fixed dose) QD orally beginning on Day 1 of every cycle (each cycle of 28-days) in a double-blind fashion until a modified starting dose regimen was implemented in protocol amendment. After the protocol amendment, participants received niraparib based upon the participant's Baseline body weight or Baseline platelet count (individualized dose): 300 mg (3×100 mg capsules for participants with a Baseline body weight \>=77 kg and Baseline platelet count \>=150,000 per μL) or 200 mg (2×100 mg capsules for participants with a Baseline body weight \<77 kg or Baseline platelet count \<150,000 per μL).
    id
    OG001
    title
    Niraparib
param Type
MEDIAN
population Description
ITT Population
reporting Status
POSTED
time Frame
Up to 34 months
title
Overall Survival
type
SECONDARY
unit Of Measure
Months

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

Preserved source evidence · Not medical advice