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NCT02998528 · OUTCOME

Event-Free Survival (EFS)

A Neoadjuvant Study of Nivolumab Plus Ipilimumab or Nivolumab Plus Chemotherapy Versus Chemotherapy Alone in Early Stage Non-Small Cell Lung Cancer (NSCLC) · Source last updated 2026-01-06

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
From randomization to disease progression, reoccurrence, or death due to any cause. (Up to a median of 30 months)

What was measured

Event-free survival (EFS) is defined as the length of time from randomization to any of the following events: any progression of disease precluding surgery, progression or recurrence disease based on blinded independent central review (BICR) assessment per response evaluation criteria in solid tumors (RECIST) 1.1 after surgery, or death due to any cause. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).

Analysis population: All concurrently randomized participants in Arm C and Arm B

Groups in this outcome

Arm B: Platinum Doublet Chemo

Participants receive investigator-choice of platinum doublet chemotherapy regimens in 3-week cycles up to a maximum of 3 cycles of IV chemotherapy (ie, 9 weeks of treatment; each cycle is 21 days). Following definitive surgery, participants could receive up to 4 cycles of adjuvant chemotherapy and/or radiation at the discretion of the investigator.

Arm C: Nivo 360 mg + Platinum Doublet Chemo

Participants receive nivolumab 360 mg IV + platinum doublet chemotherapy in 3-week cycles up to a maximum of 3 cycles of IV chemotherapy (ie, 9 weeks of treatment; each cycle is 21 days). Following definitive surgery, participants could receive up to 4 cycles of adjuvant chemotherapy and/or radiation at the discretion of the investigator.

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

Analysis denominator · Participants

GroupSource count
Arm B: Platinum Doublet Chemo179
Arm C: Nivo 360 mg + Platinum Doublet Chemo179

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Arm B: Platinum Doublet Chemo20.80Not reported14.0326.71Not reported
Arm C: Nivo 360 mg + Platinum Doublet Chemo31.57Not reported30.16NAInsufficient number of participants with events

Source statistical analyses

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

  1. ci Lower Limit
    0.43
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    97.38
    ci Upper Limit
    0.91
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0052
    param Type
    Cox Proportional Hazard
    param Value
    0.63
    statistical Comment
    Stratified by PD-L1 (≥ 1% vs \<1%/unevaluable/indeterminate), disease stage (IB/II vs IIIA), and sex (male vs female)
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.43
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    97.38
    ci Upper Limit
    0.91
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0052
    param Type
    Cox Proportional Hazard
    param Value
    0.63
    statistical Comment
    Stratified by PD-L1 (≥ 1% vs \<1%/unevaluable/indeterminate), disease stage (IB/II vs IIIA), and sex (male vs female)
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        14.03
        upper Limit
        26.71
        value
        20.80
      2. comment
        Insufficient number of participants with events
        group Id
        OG001
        lower Limit
        30.16
        upper Limit
        NA
        value
        31.57
denoms
  1. counts
    1. group Id
      OG000
      value
      179
    2. group Id
      OG001
      value
      179
    units
    Participants
description
Event-free survival (EFS) is defined as the length of time from randomization to any of the following events: any progression of disease precluding surgery, progression or recurrence disease based on blinded independent central review (BICR) assessment per response evaluation criteria in solid tumors (RECIST) 1.1 after surgery, or death due to any cause. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants receive investigator-choice of platinum doublet chemotherapy regimens in 3-week cycles up to a maximum of 3 cycles of IV chemotherapy (ie, 9 weeks of treatment; each cycle is 21 days). Following definitive surgery, participants could receive up to 4 cycles of adjuvant chemotherapy and/or radiation at the discretion of the investigator.
    id
    OG000
    title
    Arm B: Platinum Doublet Chemo
  2. description
    Participants receive nivolumab 360 mg IV + platinum doublet chemotherapy in 3-week cycles up to a maximum of 3 cycles of IV chemotherapy (ie, 9 weeks of treatment; each cycle is 21 days). Following definitive surgery, participants could receive up to 4 cycles of adjuvant chemotherapy and/or radiation at the discretion of the investigator.
    id
    OG001
    title
    Arm C: Nivo 360 mg + Platinum Doublet Chemo
param Type
MEDIAN
population Description
All concurrently randomized participants in Arm C and Arm B
reporting Status
POSTED
time Frame
From randomization to disease progression, reoccurrence, or death due to any cause. (Up to a median of 30 months)
title
Event-Free Survival (EFS)
type
PRIMARY
unit Of Measure
Months

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