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NCT03037385 · OUTCOME

Phase 1: ORR

Phase 1/2 Study of the Highly-selective RET Inhibitor, Pralsetinib (BLU-667), in Participants With Thyroid Cancer, Non-Small Cell Lung Cancer, and Other Advanced Solid Tumors · Source last updated 2025-05-31

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
Up to approximately 28 months

What was measured

ORR was defined as the percentage of participants with a confirmed CR or PR for at least two assessments with at least 28 days apart and no PD in between. Per RECIST v1.1, CR was defined as the disappearance of all target lesions or any pathological lymph nodes (whether target or non-target) having a reduction in the short axis to \<10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. PD was defined as at least a 20% increase in SOD of target lesions, taking as reference the smallest SOD on study (including baseline). ORR and its two-sided 95% CI, based on the exact binomial distribution (Clopper-Pearson), was presented.

Analysis population: Efficacy population included all participants who have been exposed to at least one dose of the study drug on or prior to 11 July 2019.

Groups in this outcome

Phase I: Pralsetinib 30 mg

Participants received pralsetinib 30 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 60 mg

Participants received pralsetinib 60 mg orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 100 mg

Participants received pralsetinib 100 mg orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 200 mg

Participants received pralsetinib 200 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 300 mg

Participants received pralsetinib 300 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 400 mg

Participants received pralsetinib 400 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 600 mg

Participants received pralsetinib 600 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 100/100 mg

Participants received pralsetinib 100 mg, orally, BID until discontinuation due to toxicity, disease progression, or other reasons.

Phase I: Pralsetinib 200/100 mg

Participants received pralsetinib 200 mg in the morning and then 100 mg in the evening orally until discontinuation due to toxicity, disease progression, or other reasons.

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

Analysis denominator · Participants

GroupSource count
Phase I: Pralsetinib 30 mg2
Phase I: Pralsetinib 60 mg6
Phase I: Pralsetinib 100 mg5
Phase I: Pralsetinib 200 mg13
Phase I: Pralsetinib 300 mg11
Phase I: Pralsetinib 400 mg12
Phase I: Pralsetinib 600 mg4
Phase I: Pralsetinib 100/100 mg5
Phase I: Pralsetinib 200/100 mg4

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Phase I: Pralsetinib 30 mg0Not reportedNANAThe 95% confidence interval (CI) was not estimable due to insufficient number of participants with events.
Phase I: Pralsetinib 60 mg50.0Not reported11.888.2Not reported
Phase I: Pralsetinib 100 mg40.0Not reported5.385.3Not reported
Phase I: Pralsetinib 200 mg38.5Not reported13.968.4Not reported
Phase I: Pralsetinib 300 mg45.5Not reported16.776.6Not reported
Phase I: Pralsetinib 400 mg41.7Not reported15.272.3Not reported
Phase I: Pralsetinib 600 mg25.0Not reported0.9980.6Not reported
Phase I: Pralsetinib 100/100 mg80.0Not reported28.499.5Not reported
Phase I: Pralsetinib 200/100 mg75.0Not reported19.499.4Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        The 95% confidence interval (CI) was not estimable due to insufficient number of participants with events.
        group Id
        OG000
        lower Limit
        NA
        upper Limit
        NA
        value
        0
      2. group Id
        OG001
        lower Limit
        11.8
        upper Limit
        88.2
        value
        50.0
      3. group Id
        OG002
        lower Limit
        5.3
        upper Limit
        85.3
        value
        40.0
      4. group Id
        OG003
        lower Limit
        13.9
        upper Limit
        68.4
        value
        38.5
      5. group Id
        OG004
        lower Limit
        16.7
        upper Limit
        76.6
        value
        45.5
      6. group Id
        OG005
        lower Limit
        15.2
        upper Limit
        72.3
        value
        41.7
      7. group Id
        OG006
        lower Limit
        0.99
        upper Limit
        80.6
        value
        25.0
      8. group Id
        OG007
        lower Limit
        28.4
        upper Limit
        99.5
        value
        80.0
      9. group Id
        OG008
        lower Limit
        19.4
        upper Limit
        99.4
        value
        75.0
denoms
  1. counts
    1. group Id
      OG000
      value
      2
    2. group Id
      OG001
      value
      6
    3. group Id
      OG002
      value
      5
    4. group Id
      OG003
      value
      13
    5. group Id
      OG004
      value
      11
    6. group Id
      OG005
      value
      12
    7. group Id
      OG006
      value
      4
    8. group Id
      OG007
      value
      5
    9. group Id
      OG008
      value
      4
    units
    Participants
description
ORR was defined as the percentage of participants with a confirmed CR or PR for at least two assessments with at least 28 days apart and no PD in between. Per RECIST v1.1, CR was defined as the disappearance of all target lesions or any pathological lymph nodes (whether target or non-target) having a reduction in the short axis to \<10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. PD was defined as at least a 20% increase in SOD of target lesions, taking as reference the smallest SOD on study (including baseline). ORR and its two-sided 95% CI, based on the exact binomial distribution (Clopper-Pearson), was presented.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received pralsetinib 30 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG000
    title
    Phase I: Pralsetinib 30 mg
  2. description
    Participants received pralsetinib 60 mg orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG001
    title
    Phase I: Pralsetinib 60 mg
  3. description
    Participants received pralsetinib 100 mg orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG002
    title
    Phase I: Pralsetinib 100 mg
  4. description
    Participants received pralsetinib 200 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG003
    title
    Phase I: Pralsetinib 200 mg
  5. description
    Participants received pralsetinib 300 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG004
    title
    Phase I: Pralsetinib 300 mg
  6. description
    Participants received pralsetinib 400 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG005
    title
    Phase I: Pralsetinib 400 mg
  7. description
    Participants received pralsetinib 600 mg, orally, QD until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG006
    title
    Phase I: Pralsetinib 600 mg
  8. description
    Participants received pralsetinib 100 mg, orally, BID until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG007
    title
    Phase I: Pralsetinib 100/100 mg
  9. description
    Participants received pralsetinib 200 mg in the morning and then 100 mg in the evening orally until discontinuation due to toxicity, disease progression, or other reasons.
    id
    OG008
    title
    Phase I: Pralsetinib 200/100 mg
param Type
NUMBER
population Description
Efficacy population included all participants who have been exposed to at least one dose of the study drug on or prior to 11 July 2019.
reporting Status
POSTED
time Frame
Up to approximately 28 months
title
Phase 1: ORR
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice