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Study identifier: NCT07260435 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Apa/Enza-short Study: Shorter Treatment With Androgen Receptor Pathway Inhibitor in Patients With Low-volume Metastatic Castration-sensitive Prostate Cancer

Condition: Prostate Cancer  ·  Sponsor: Nick Beije

PhasePhase 3
Planned participants400
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this clinical trial is to evaluate the outcomes of a shorter treatment duration (12 months) with an androgen receptor pathway inhibitor (ARPI), in this study Apalutamide or Enzalutamide, in patients with low-volume, hormone-sensitive metastatic prostate cancer (mCSPC), with the possibility to restart treatment if needed. The main research question is whether discontinuation of ARPI therapy after 12 months, with the option to restart treatment upon disease progression, is non-inferior to continued ARPI therapy, potentially reducing toxicity and costs. Eligible patients will be randomized after completing 12 months of ARPI treatment, to one of the following two arms: 1. ADT + continued ARPI (Apalutamide or Enzalutamide) 2. ADT + ARPI discontinued after 12 months, with the option to resume ARPI in case of a confirmed PSA rise. The confirmatory PSA sample must be obtained at least 4 weeks after the initial rise. This study aims to minimize toxicity associated with prolonged use of ARPIs in patients with low-volume, hormone-sensitive metastatic prostate cancer.

This description comes directly from the study's public registry record.

Talk to the study team

Dr. N. Beije  ·  +31010 704 0704  ·  n.beije@erasmusmc.nl

Always discuss trial participation with your own doctor first.

Locations (26)

Noordwest ZiekenhuisgroepAlkmaar, NetherlandsRecruiting
Meander MC AmersfoortAmersfoort, NetherlandsNot Yet Recruiting
Amsterdam Universitair Medisch CentrumAmsterdam, NetherlandsNot Yet Recruiting
Antoni van LeeuwenhoekAmsterdam, NetherlandsNot Yet Recruiting
Wilhelmina Ziekenhuis AssenAssen, NetherlandsRecruiting
Rode Kruis ZiekenhuisBeverwijk, NetherlandsRecruiting
Deventer ZiekenhuisDeventer, NetherlandsRecruiting
Catharina ZiekenhuisEindhoven, NetherlandsRecruiting
Treant ZorggroepEmmen, NetherlandsRecruiting
Medisch Spectrum TwenteEnschede, NetherlandsRecruiting
Admiraal de Ruyter ziekenhuisGoes, NetherlandsRecruiting
Universitair Medisch Centrum GroningenGroningen, NetherlandsRecruiting

+ 14 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT07260435