Surgical Treatment With or Without Apalutamide in Subjects With High Risk Prostate Cancer Who Are Candidates for Radical Prostatectomy and Staged as Oligometastatic With PSMA-PET
STAPLE
STAPLE
Sponsor study identifier
Secondary identifiers
EUDRACT_NUMBER
interventional
94
1 country
1
Study Start
November 25, 2024
Actual (reported)Primary Completion
January 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
June 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
This is a phase 2, open-label, randomized study of adjuvant treatment in subjects with high-risk prostate cancer who are candidates for RP with PLND based on M0 status at conventional imaging, but staged as oligometastatic with PSMA PET/CT (performed as routine practice, according to recent evidence on high-risk prostate cancer patients). Ninety-four subjects will receive apalutamide plus ADT or ADT alone after surgery. ADT is defined as medical castration (ie, gonadotropin-releasing hormone analogues \[GnRHa, agonist or antagonist\]). Subjects will be randomly assigned in a 1:1 ratio to receive apalutamide plus ADT or ADT alone. Patients randomized to receive ADT + apalutamide or ADT alone will begin their adjuvant treatment 4 weeks (28 to 32 days) after surgery. A first dosage of PSA and testosterone will be performed just before starting adjuvant therapy but not before 28 days from surgery. Subsequently, PSA and testosterone dosage and clinical visits will be performed after 3 months from surgery and every 3 months until completion of study. PSMA PET/CT scan will be performed yearly, or in case of PSA progression. The Posttreatment Follow-up Phase will begin after 18 months of ADT and will last for 6 months, until study completion. Afterwards, patients will continue their follow-up according to the best clinical practice.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
June 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
November 19, 2024
Actual (reported)November 25, 2024
Actual (reported)January 6, 2025
Actual (reported)January 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
June 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Radiological progression-free survival (RPFS)
the time from randomization to date of first PSMA PET/CT-based documentation of progressive disease (appearance of new lesions) or death, whichever occurred first. The RECIP criteria for progression will also be used for the analysis.
from date of randomization to 24 months (6 months of follow-up after 18 months of treatment)
Adverse events (AEs)
from date of randomization to 24 months (6 months of follow-up after 18 months of treatment)
radical prostatectomy + apalutamide + androgen deprivation therapy
radical prostatectomy + androgen deprivation therapy
administration of non steroid androgenic receptor inhibitors plus androgen deprivation therapy
administration of androgen deprivation therapy
These entries preserve how the registry describes the intervention. Their treatment roles are shown separately from molecular identities.
Formulated product
Erleada 60 mg film-coated tablets
The registry describes a specific formulation. Its exact chemical ingredients and approval status require separate evidence.
FILM-COATED TABLET
View registry recordThe registry names these ingredients. The formulation’s exact chemical form has not been confirmed.
Erleada 60 mg film-coated tablets
Named ingredient: apalutamide
View registry recordRegistry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Dept of Surgical Sciences - Urology, Molinette Hospital, University of Torino
Torino, To, 10126, Italy
First Submitted
November 19, 2024
First Posted
January 6, 2025
Study Start
November 25, 2024
Actual (reported)Primary Completion
January 2026
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Contact the study team to confirm eligibility.
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
June 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
January 6, 2025
Record last verified: 2024-12
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Source: ClinicalTrials.gov.
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