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NCT04689828 · OUTCOME

Radiographic Progression Free Survival (rPFS)

177Lu-PSMA-617 vs. Androgen Receptor-Directed Therapy in the Treatment of Progressive Metastatic Castrate Resistant Prostate Cancer · Source last updated 2026-08-26

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
median FU (randomization to event or censoring) 3.65 months (range 0-12.3)

What was measured

rPFS is defined as the time to radiographic progression by Prostate cancer working Group 3 (PCWG3)-modified RECIST v1.1 as assessed by Blinded independent central (BICR) review or death.

Analysis population: The Full Analysis Set (FAS) comprised all participants to whom study treatment was assigned by randomization.

Groups in this outcome

177Lu-PSMA-617 (AAA617)

Participants received 7.4 GBq (200 mCi) +/- 10% 177Lu-PSMA-617 once every 6 weeks for 6 cycles. Best supportive care, including ADT could be used.

Androgen Receptor-directed Therapy (ARDT)

For participants randomized to the ARDT arm, the change of ARDT treatment was administered per the physician's orders. Best supportive care, including ADT could be used.

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

Analysis denominator · Participants

GroupSource count
177Lu-PSMA-617 (AAA617)233
Androgen Receptor-directed Therapy (ARDT)234

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
177Lu-PSMA-617 (AAA617)9.30Not reported6.77NANA: not able to calculate the upper bounds of the 95% Confidence Interval due to insufficient number of participants with events
Androgen Receptor-directed Therapy (ARDT)5.55Not reported4.045.95Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.29
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.56
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.00000001
    param Type
    Hazard Ratio (HR)
    param Value
    0.41
    statistical Comment
    Stratified
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.29
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.56
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.00000001
    param Type
    Hazard Ratio (HR)
    param Value
    0.41
    statistical Comment
    Stratified
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. comment
        NA: not able to calculate the upper bounds of the 95% Confidence Interval due to insufficient number of participants with events
        group Id
        OG000
        lower Limit
        6.77
        upper Limit
        NA
        value
        9.30
      2. group Id
        OG001
        lower Limit
        4.04
        upper Limit
        5.95
        value
        5.55
denoms
  1. counts
    1. group Id
      OG000
      value
      233
    2. group Id
      OG001
      value
      234
    units
    Participants
description
rPFS is defined as the time to radiographic progression by Prostate cancer working Group 3 (PCWG3)-modified RECIST v1.1 as assessed by Blinded independent central (BICR) review or death.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 7.4 GBq (200 mCi) +/- 10% 177Lu-PSMA-617 once every 6 weeks for 6 cycles. Best supportive care, including ADT could be used.
    id
    OG000
    title
    177Lu-PSMA-617 (AAA617)
  2. description
    For participants randomized to the ARDT arm, the change of ARDT treatment was administered per the physician's orders. Best supportive care, including ADT could be used.
    id
    OG001
    title
    Androgen Receptor-directed Therapy (ARDT)
param Type
MEDIAN
population Description
The Full Analysis Set (FAS) comprised all participants to whom study treatment was assigned by randomization.
reporting Status
POSTED
time Frame
median FU (randomization to event or censoring) 3.65 months (range 0-12.3)
title
Radiographic Progression Free Survival (rPFS)
type
PRIMARY
unit Of Measure
months

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Preserved source evidence · Not medical advice