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NCT03881488 · OUTCOME

Progression-free Survival

Study of CTX-471 as a Monotherapy or in Combination With Pembrolizumab in Patients Post PD-1/PD-L1 Inhibitors in Metastatic or Locally Advanced Malignancies · Source last updated 2026-10-09

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

Measure
MEDIAN
Unit
months
Interval / dispersion
Full Range
Time frame
From the first dose of CTX-471 to progression of disease or death

What was measured

Time from the first dose of CTX-471 to disease progression (as assessed by Response Evaluation Criteria in Solid Tumours guideline version 1.1) or death

Analysis population: Response Evaluable Analysis Set: all patients with measurable disease before treatment who received CTX-471 (and pembrolizumab in combination arms) and had at least 1 post-treatment response assessment or discontinued treatment due to progression of disease progression within 8 weeks after first dose of study treatment.

Groups in this outcome

CTX-471 Monotherapy 0.1 mg/kg

0.1 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks

CTX-471 Monotherapy 0.3 mg/kg

0.3 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks

CTX-471 Monotherapy 0.6 mg/kg

0.6 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks

CTX-471 Monotherapy 1.2 mg/kg

1.2 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks

CTX-471 Combination 0.1 mg/kg

0.1 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks + 400 mg of pembrolizumab by IV infusion over 30 minutes every 6 weeks

CTX-471 Combination 0.3 mg/kg

0.3 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks + 400 mg of pembrolizumab by IV infusion over 30 minutes every 6 weeks

CTX-471 Combination 0.6 mg/kg

0.6 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks + 400 mg of pembrolizumab by IV infusion over 30 minutes every 6 weeks

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

Analysis denominator · Participants

GroupSource count
CTX-471 Monotherapy 0.1 mg/kg3
CTX-471 Monotherapy 0.3 mg/kg31
CTX-471 Monotherapy 0.6 mg/kg33
CTX-471 Monotherapy 1.2 mg/kg4
CTX-471 Combination 0.1 mg/kg3
CTX-471 Combination 0.3 mg/kg8
CTX-471 Combination 0.6 mg/kg9

Reported measurements

Source class 1
Values in months · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
CTX-471 Monotherapy 0.1 mg/kg3.55Not reported1.645.49Not reported
CTX-471 Monotherapy 0.3 mg/kg3.55Not reported0.9542.07Not reported
CTX-471 Monotherapy 0.6 mg/kg3.52Not reported1.5114.77Not reported
CTX-471 Monotherapy 1.2 mg/kg3.05Not reported1.744.21Not reported
CTX-471 Combination 0.1 mg/kg1.84Not reported1.5820.53Not reported
CTX-471 Combination 0.3 mg/kg2.89Not reported1.6414.77Not reported
CTX-471 Combination 0.6 mg/kg2.36Not reported1.183.68Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        1.64
        upper Limit
        5.49
        value
        3.55
      2. group Id
        OG001
        lower Limit
        0.95
        upper Limit
        42.07
        value
        3.55
      3. group Id
        OG002
        lower Limit
        1.51
        upper Limit
        14.77
        value
        3.52
      4. group Id
        OG003
        lower Limit
        1.74
        upper Limit
        4.21
        value
        3.05
      5. group Id
        OG004
        lower Limit
        1.58
        upper Limit
        20.53
        value
        1.84
      6. group Id
        OG005
        lower Limit
        1.64
        upper Limit
        14.77
        value
        2.89
      7. group Id
        OG006
        lower Limit
        1.18
        upper Limit
        3.68
        value
        2.36
denoms
  1. counts
    1. group Id
      OG000
      value
      3
    2. group Id
      OG001
      value
      31
    3. group Id
      OG002
      value
      33
    4. group Id
      OG003
      value
      4
    5. group Id
      OG004
      value
      3
    6. group Id
      OG005
      value
      8
    7. group Id
      OG006
      value
      9
    units
    Participants
description
Time from the first dose of CTX-471 to disease progression (as assessed by Response Evaluation Criteria in Solid Tumours guideline version 1.1) or death
dispersion Type
Full Range
groups
  1. description
    0.1 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks
    id
    OG000
    title
    CTX-471 Monotherapy 0.1 mg/kg
  2. description
    0.3 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks
    id
    OG001
    title
    CTX-471 Monotherapy 0.3 mg/kg
  3. description
    0.6 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks
    id
    OG002
    title
    CTX-471 Monotherapy 0.6 mg/kg
  4. description
    1.2 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks
    id
    OG003
    title
    CTX-471 Monotherapy 1.2 mg/kg
  5. description
    0.1 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks + 400 mg of pembrolizumab by IV infusion over 30 minutes every 6 weeks
    id
    OG004
    title
    CTX-471 Combination 0.1 mg/kg
  6. description
    0.3 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks + 400 mg of pembrolizumab by IV infusion over 30 minutes every 6 weeks
    id
    OG005
    title
    CTX-471 Combination 0.3 mg/kg
  7. description
    0.6 mg/kg body weight of CTX-471 by IV infusion over 1 hour every 2 weeks + 400 mg of pembrolizumab by IV infusion over 30 minutes every 6 weeks
    id
    OG006
    title
    CTX-471 Combination 0.6 mg/kg
param Type
MEDIAN
population Description
Response Evaluable Analysis Set: all patients with measurable disease before treatment who received CTX-471 (and pembrolizumab in combination arms) and had at least 1 post-treatment response assessment or discontinued treatment due to progression of disease progression within 8 weeks after first dose of study treatment.
reporting Status
POSTED
time Frame
From the first dose of CTX-471 to progression of disease or death
title
Progression-free Survival
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice