NCT05649943

Multimodal Approach in Patients With mHSPC. Randomized Trial of APA+ADT vs APA-ADT and Local Treatment

APPROACH : Multimodal Approach in Patients With mHSPC. A Pragmatic Randomized Trial of Apalutamide Plus Androgen Deprivation Therapy (APA-ADT) Versus APA-ADT Plus Local Treatment. A Meet-URO 29 Study

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 566 (estimated)
• Sponsor: Fondazione IRCCS Istituto Nazionale dei Tumori, Milano · Academic / Other
• Sex: Male
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Italian multicenter study, will enroll \~566 pts with oligometastatic hormone sensitive prostate cancer who are candidates to receive treatment with apalutamide. After 6 months from the start of treatment, patients will be randomized to receive local treatment based on the investigator's choice ( either one between primary radiotherapy or cytoreductive prostatectomy), in addition to apalutamide, or to continue just with medical therapy.

Detailed description

Primary end point: To determine whether treatment with apalutamide in combination with androgen-deprivative therapy for 6 months followed by locoregional treatment with radiotherapy or radical prostatectomy has better efficacy than medical treatment with apalutamide + ADT alone in terms of radiographic progression-free survival (rPFS), specifically time to radiographic progression in soft tissue per RECIST 1.1 or in bone per PCWG3 criteria by investigator, or death. Secondary end points: To evaluate tumor shrinkage after locoregional approach and to evaluate short and long term side effects after locoregional surgery or RT, time to PSA progression, time to castration resistance, cancer specific survival, overall survival and quality of life according to EPIC-26 and EQ-5D-5L questionnaires.

Conditions

• Metastatic Hormone-Sensitive Prostate Cancer (mHSPC)

Interventions

Type	Name	Description
DRUG	APA + ADT	All participants will receive apalutamide 240 mg (4 x 60 mg) tablets orally once daily. Apalutamide is distributed in Italy under the trade name of Erleada® 60 mg. All patients not undergoing surgical castration should also continue medical castration by taking a gonadotropin-releasing hormone (GnRHa) analogue during treatment.
PROCEDURE	Local Treatmetn RT or RP	Patients who will undergo radiotherapy as a local treatment must be treated according to the following scheme: External beam radiotherapy administered at 36 Gy in six consecutive weekly fractions of 6 Gy, or 55 Gy in 20 daily fractions of 2・75 Gy over 4 weeks. Radiation therapy will be given with the patient supine and with a full bladder and an empty rectum. The planned target volume is prostate only, with an 8 mm margin posteriorly and a 10 mm margin elsewhere. No RT on lymph nodes is foreseen. RT should begin 6 months after the first dose of apalutamide (+/- 2 weeks). Radical prostatectomy should be performed 6 months after the first dose of apalutamide (+/- 2 weeks).

Timeline

• Start date: 2023-03-01
• Primary completion: 2027-01-01
• Completion: 2029-01-01
• First posted: 2022-12-14
• Last updated: 2025-09-03

Locations

3 sites across 1 country: Italy