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Metastatic Castration-resistant Prostate CancerPROWESsNCT06031805

PRostate Olaparib Real World Evidence Study

An observational study of Metastatic Castration-resistant Prostate Cancer, run by AstraZeneca at 39 sites in France.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This French non-interventional longitudinal multicenter cohort study is conducted to study the added value of olaparib in the treatment of patients with mCRPC in the real world setting in terms of treatment sequencing, effectiveness, safety and BRCA testing patterns and thus inform future clinical practice. Read more about this study

Who is it for?
Ages 18 years and older, men only
How many people
159 participants
Where
39 sitesFrance
Study dates
11 Oct 2023to 13 Oct 2028
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult male patients with metastatic castration-resistant prostate cancer who have initiated olaparib within at least, the last two months of study entry, at their physician's discretion or who have been enrolled in the funded early access program A sample of approximately 300 patients is expected to be enrolled from around 60 french sites.

Who may be able to join

None listed.

Who cannot join

  • Patients opposed to the collection of their data
  • Patients participating in a clinical trial with an investigational prostate cancer targeted drug within 30 days prior to Olaparib initiation

Trial locations and contacts

39 sites in 1 country.

39 sites in 1 country

France39 sites
  • Research Site

    Amiens

  • Research Site

    Angers

  • Research Site

    Antony

  • Research Site

    Argenteuil

  • Research Site

    Avignon

  • Research Site

    Besançon

  • Research Site

    Bordeaux

  • Research Site

    Challes-les-Eaux

  • Research Site

    Chambray-lès-Tours

  • Research Site

    Clermont-Ferrand

  • Research Site

    Compiègne

  • Research Site

    Créteil

  • Research Site

    Epagny METZ Tessy

  • Research Site

    Ermont

  • Research Site

    FORT de France

  • Research Site

    Fréjus

  • Research Site

    Grenoble

  • Research Site

    Le Coudray

  • Research Site

    Levallois-Perret

  • Research Site

    Lyon

  • Research Site

    Mantes-la-Jolie

  • Research Site

    Morlaix

  • Research Site

    Nancy

  • Research Site

    Nantes

  • Research Site

    Nice

  • Research Site

    ORL ANS

  • Research Site

    Paris

  • Research Site

    Pointe à Pitre

  • Research Site

    Poitiers

  • Research Site

    Pontoise

  • Research Site

    Rouen

  • Research Site

    Saint-Etienne

  • Research Site

    Saint-Grégoire

  • Research Site

    Saint-Mandé

  • Research Site

    Saint-Nazaire

  • Research Site

    Strasbourg

  • Research Site

    Tours

  • Research Site

    Vannes

  • Research Site

    Vantoux

Other trials in France

About this study

Official title: A French Observational Longitudinal Multicenter Study of Adult Patients Treated in the Real-life Setting With Olaparib for the Treatment of Metastatic Castration Resistant Prostate Cancer

This French non-interventional longitudinal multicenter cohort study is conducted to study the added value of olaparib in the treatment of patients with mCRPC in the real world setting in terms of treatment sequencing, effectiveness, safety and BRCA testing patterns and thus inform future clinical practice.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Time to treatment discontinuation (TTD)

    TTD is defined as the time from the first day of olaparib treatment to the day that olaparib stopped for whatever reason or the date of death due to any cause, whichever comes first

    Measured: Up to 24 months from olaparib initiation

Secondary outcomes (28)
  1. Real-world Progression-free survival (rwPFS)

    Real-world Progression-free survival (rwPFS) defined as the time from initiation of olaparib therapy (index date) until earliest record of disease progression determined by physician's assessment, or death. For any patient not known to have progressed or died, or who is lost to follow-up at the time of analysis, rwPFS will be right-censored based on the last recorded date on which the patient was known to be alive and progression-free.

    Measured: Up to 24 months from olaparib initiation

  2. Time to first subsequent therapy (TFST)

    Time to first subsequent therapy (TFST) defined as the time from initiation of olaparib therapy (index date) to the start of the first subsequent therapy or death, whichever is earlier. For any patient not known to have died and who has not started a subsequent treatment to olaparib at the end of follow-up, TFST will be right-censored at the last recorded day of follow up.

    Measured: Up to 24 months from olaparib initiation

  3. Real-world Progression-free survival 2 (rwPFS2)

    Real-world Progression-free survival 2 (rwPFS2) defined as the time from initiation of olaparib therapy (index date) until earliest record of second disease progression determined by physician's assessment, or death. For any patient without second disease progression, and not known to have died at end of follow-up, rwPFS2 will be right-censored at the date of last follow up.

    Measured: Up to 24 months from olaparib initiation

  4. Time to second subsequent therapy (TSST)

    Time to second subsequent therapy (TSST) defined as the time from initiation of olaparib therapy (index date) to the start of the second subsequent therapy or death, whichever is earlier. For any patient not known to have died and who have not started a second subsequent treatment to olaparib at the end of follow-up, TSST will be right-censored at the last recorded day of follow-up

    Measured: Up to 24 months from olaparib initiation

  5. Symptomatic skeletal related events free-survival (SSEFS)

    Symptomatic skeletal related events free-survival (SSEFS) defined as the time from initiation of olaparib therapy (index date) until earliest record of symptomatic skeletal related events, or death. For any patient without symptomatic skeletal-related events not known to have died at the end of follow-up, SSEFS will be right-censored at the date of last follow-up.

    Measured: Up to 24 months from olaparib initiation

  6. Physician characteristics

    Specialty, type of institution (public/private), region

    Measured: At the end of enrollment period (Up to 32 months )

  7. Patient socio-demographic characteristics

    Ethnicity

    Measured: At the end of enrollment period (Up to 32 months )

  8. Patient clinical characteristics

    Weight

    Measured: At the end of enrollment period (Up to 32 months )

  9. Disease characteristics

    Disease stage at tumor diagnosis

    Measured: At the end of enrollment period (Up to 32 months )

  10. Disease characteristics

    Stage of tumor

    Measured: At the end of enrollment period (Up to 32 months )

  11. Disease characteristics

    Localization of metastases

    Measured: At the end of enrollment period (Up to 32 months )

  12. Disease characteristics

    Imaging modality

    Measured: At the end of enrollment period (Up to 32 months )

  13. Disease characteristics

    Time between all cancer stages (PC, mPC, mCRPC),

    Measured: At the end of enrollment period (Up to 32 months )

  14. Disease characteristics

    Gleason score

    Measured: At the end of enrollment period (Up to 32 months )

  15. Disease characteristics

    PSA level

    Measured: At the end of enrollment period (Up to 32 months )

  16. Disease characteristics

    Risk Criteria

    Measured: At the end of enrollment period (Up to 32 months )

  17. Treatment patterns description

    • Systemic treatment, surgical intervention, radiotherapy, response to treatment,

    Measured: At the end of enrollment period (Up to 32 months )

  18. Treatment patterns description

    • Previous, at baseline and subsequent treatment modalities

    Measured: At the end of enrollment period (Up to 32 months )

  19. BRCA testing characteristics and patterns description

    Standard assessment

    Measured: At the end of enrollment period (Up to 32 months )

  20. Impact characterization of the timing of BRCA testing in relation to the therapeutic course on clinical outcomes

    • Clinical outcomes: as defined above

    Measured: Up to 24 months from olaparib initiation

  21. Impact characterization of the timing of BRCA testing in relation to the therapeutic course on clinical outcomes

    • Timing of BRCA testing

    Measured: Up to 24 months from olaparib initiation

  22. Reasons description for olaparib dosage changes, dose interruptions and treatment cessation

    • Rate and reasons for olaparib dosage changes, dose interruptions, treatment cessation, or death

    Measured: Up to 24 months from olaparib initiation

  23. Patient socio-demographic characteristic

    ECOG performance status

    Measured: At the end of enrollment period (Up to 32 months )

  24. Patient socio-demographic characteristics

    Age

    Measured: At the end of enrollment period (Up to 32 months )

  25. Patient clinical characteristics

    Medical history and comorbidities of interest

    Measured: At the end of enrollment period (Up to 32 months )

  26. Patient clinical characteristics

    G8 score

    Measured: At the end of enrollment period (Up to 32 months )

  27. Patient clinical characteristics

    Body mass index

    Measured: At the end of enrollment period (Up to 32 months )

  28. Patient clinical characteristics

    Height

    Measured: At the end of enrollment period (Up to 32 months )

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Sep 2023
  2. Study start11 Oct 2023
  3. Primary completion13 Oct 2028 (estimated)
  4. Study completion13 Oct 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
159 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06031805
Sponsor's protocol ID
D0817R00049
Acronym
PROWESs
Status last verified
Aug 2026
First submitted
4 Sep 2023
Last updated
28 Sep 2026
Results posted
No

Questions about this trial

What is this clinical trial studying?

An observational study of Metastatic Castration-resistant Prostate Cancer, run by AstraZeneca at 39 sites in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 0 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 28 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 39 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time to treatment discontinuation (TTD) (time frame: Up to 24 months from olaparib initiation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Sep 2026; AzTrials last refreshed its copy on 28 Oct 2026.

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