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NCT03052608 · OUTCOME

Intracranial Objective Response Rate (IC-ORR) - Percentage of Participants With Intracranial Objective Response (IC-OR) Based on BICR Assessment

A Study Of Lorlatinib Versus Crizotinib In First Line Treatment Of Patients With ALK-Positive NSCLC · Source last updated 2025-11-25

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

Measure
NUMBER
Unit
Percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
From time of Study Start up to 33 months

What was measured

IC-ORR was the percentage of participant with intracranial objective response of complete response (CR) or partial response (PR) based on intracranial disease in the subset of participants with at least 1 intracranial lesion per RECIST version 1.1 (modified) recorded from randomization until disease progression or start of new anti-cancer therapy. CR was defined as complete disappearance of all target lesions and non-target disease. All nodes, both target and non-target, must decrease to normal (short axis \<10 mm). PR was defined as at least a 30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum longest dimensions.

Analysis population: The subset of the FA population with at least 1 baseline intracranial lesion (based on BICR intracranial assessment).

Groups in this outcome

Lorlatinib

Lorlatinib monotherapy at the recommended Phase 2 dose of 100 mg, was administered orally once daily (QD) at approximately the same time of the day on a continuous daily dosing schedule. Each treatment cycle was defined as 28 days. Treatment continued until confirmation of RECIST version 1.1 defined disease progression assessed by the blinded independent central review (unless clinical benefit was still achievable), participant refusal, participant lost to follow-up, unacceptable toxicity, death, or the study was terminated by the sponsor, whichever occurred first.

Crizotinib

Crizotinib monotherapy at the registered dose of 250 mg, was administered orally twice daily (BID) at approximately the same time in the morning and evening (12 hours apart) on a continuous daily dosing schedule. Each treatment cycle was defined as 28 days. Treatment continued until confirmation of RECIST version 1.1 defined disease progression assessed by the blinded independent central review (unless clinical benefit was still achievable), participant refusal, participant lost to follow-up, unacceptable toxicity, death, or the study was terminated by the sponsor, whichever occurred first.

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

Analysis denominator · Participants

GroupSource count
Lorlatinib38
Crizotinib40

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Lorlatinib65.8Not reported48.680.4Not reported
Crizotinib20.0Not reported9.135.6Not reported

Source statistical analyses

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

  1. ci Lower Limit
    2.586
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    27.233
    estimate Comment
    Odds ratio was estimated using Mantel-Haenszel method. An odds ratio larger than 1 indicates better outcome for Lorlatinib relative to Crizotinib. Exact CI was calculated.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.0001
    param Type
    Odds Ratio (OR)
    param Value
    8.407
    statistical Comment
    Stratified by the presence of brain metastases (Yes/No) and ethnic origin (Asian/Non-Asian) at randomization.
    statistical Method
    Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. ci Lower Limit
    2.586
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    27.233
    estimate Comment
    Odds ratio was estimated using Mantel-Haenszel method. An odds ratio larger than 1 indicates better outcome for Lorlatinib relative to Crizotinib. Exact CI was calculated.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.0001
    param Type
    Odds Ratio (OR)
    param Value
    8.407
    statistical Comment
    Stratified by the presence of brain metastases (Yes/No) and ethnic origin (Asian/Non-Asian) at randomization.
    statistical Method
    Cochran-Mantel-Haenszel
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        48.6
        upper Limit
        80.4
        value
        65.8
      2. group Id
        OG001
        lower Limit
        9.1
        upper Limit
        35.6
        value
        20.0
denoms
  1. counts
    1. group Id
      OG000
      value
      38
    2. group Id
      OG001
      value
      40
    units
    Participants
description
IC-ORR was the percentage of participant with intracranial objective response of complete response (CR) or partial response (PR) based on intracranial disease in the subset of participants with at least 1 intracranial lesion per RECIST version 1.1 (modified) recorded from randomization until disease progression or start of new anti-cancer therapy. CR was defined as complete disappearance of all target lesions and non-target disease. All nodes, both target and non-target, must decrease to normal (short axis \<10 mm). PR was defined as at least a 30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum longest dimensions.
dispersion Type
95% Confidence Interval
groups
  1. description
    Lorlatinib monotherapy at the recommended Phase 2 dose of 100 mg, was administered orally once daily (QD) at approximately the same time of the day on a continuous daily dosing schedule. Each treatment cycle was defined as 28 days. Treatment continued until confirmation of RECIST version 1.1 defined disease progression assessed by the blinded independent central review (unless clinical benefit was still achievable), participant refusal, participant lost to follow-up, unacceptable toxicity, death, or the study was terminated by the sponsor, whichever occurred first.
    id
    OG000
    title
    Lorlatinib
  2. description
    Crizotinib monotherapy at the registered dose of 250 mg, was administered orally twice daily (BID) at approximately the same time in the morning and evening (12 hours apart) on a continuous daily dosing schedule. Each treatment cycle was defined as 28 days. Treatment continued until confirmation of RECIST version 1.1 defined disease progression assessed by the blinded independent central review (unless clinical benefit was still achievable), participant refusal, participant lost to follow-up, unacceptable toxicity, death, or the study was terminated by the sponsor, whichever occurred first.
    id
    OG001
    title
    Crizotinib
param Type
NUMBER
population Description
The subset of the FA population with at least 1 baseline intracranial lesion (based on BICR intracranial assessment).
reporting Status
POSTED
time Frame
From time of Study Start up to 33 months
title
Intracranial Objective Response Rate (IC-ORR) - Percentage of Participants With Intracranial Objective Response (IC-OR) Based on BICR Assessment
type
SECONDARY
unit Of Measure
Percentage of participants

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Preserved source evidence · Not medical advice