OnCo
trialsTrialPositive

PEACE-1

PEACE-1 is the European triplet trial: abiraterone added to hormone therapy and docetaxel improves survival, especially in high-volume disease.

1,173 men; OS HR 0.82 overall, 0.72 in high-volume disease (median 5.1 vs 3.5 years); prostate RT reduced serious urinary events.

Setting
De novo metastatic hormone-sensitive prostate cancer: ADT + docetaxel ± abiraterone ± prostate radiotherapy (2×2 factorial)
Phase
Phase 3
Sponsor
UNICANCER / Gustave Roussy
Registry
Headline result
OS HR 0.82 (ITT); 0.72 high-volume.
Reported
2021
Enrolled
1173
Replication
Consistent with ARASENS for triplet therapy in high-volume de novo disease.

Outcomes

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In plain words
What these results mean for people, not percentages
1,173 people took part
Overall survival, abiraterone vs no abiraterone (with ADT + docetaxel)primarysurvival endpoint
  • Median 66 vs 52 months with Abiraterone + ADT + docetaxel compared with ADT + docetaxel; about 14 months longer for half the group.
  • A median is a midpoint: half the people did better than this and half did worse, so it is not a prediction for any one person.
  • Put another way, the treated group had about 25 percent lower chance of the event at any given time (hazard ratio 0.75, likely range 0.59 to 0.95).
  • Overall survival counts deaths from any cause, so it is the most direct measure of whether a treatment helps people live longer.
  • These results apply to the people the trial enrolled: De novo metastatic hormone-sensitive prostate cancer: ADT + docetaxel ± abiraterone ± prostate radiotherapy (2×2 factorial). People in a different situation may not see the same effect.

Numbers are from the trial as recorded here; see the source links in the table below. This is orientation, not medical advice: ask your team how closely the trial population matches you.

1,173 participants enrolled.

Overall survival, abiraterone vs no abiraterone (with ADT + docetaxel)primary
HR 0.75 (0.59–0.95) · p = 0.017
Abiraterone + ADT + docetaxel
66 mo
ADT + docetaxel
52 mo
Source
EndpointArmnValueHR (95% CI)pSource
Overall survival, abiraterone vs no abiraterone (with ADT + docetaxel)primaryAbiraterone + ADT + docetaxel66 months0.75 (0.59–0.95)0.017link
ADT + docetaxel52 months
Replication
Consistent with ARASENS for triplet therapy in high-volume de novo disease.

Connected

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