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A RAndomized, open label, multicenter study of Docetaxel versus an Androgen Receptor-targeted agent (abiraterone or enzalutamide) as first-line of therapy in mCRPC patients with adverse prognostic factors (RADAR-1 CRPC)

A RAndomized, open label, multicenter study of Docetaxel versus an Androgen Receptor-targeted agent (abiraterone or enzalutamide) as first-line of therapy in mCRPC patients with adverse prognostic factors (RADAR-1 CRPC) - RADAR-1 CRPC

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2019-003761-17-IT
Enrollment
200
Registered
2021-05-24
Start date
2020-04-02
Completion date
Unknown
Last updated
2024-12-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Castration resistant prostate cancer docetaxel and androgen receptor-targeted agent (abiraterone or enzalutamide) naïve. MedDRA version: 21.1 Level: LLT Classification code 10076506 Term: Castration-resistant prostate cancer System Organ Class: 100000004864

Interventions

Trade Name: XTANDI Product Name: XTANDI Product Code: [L02BB04] Pharmaceutical Form: Capsule, soft INN or Proposed INN: 00329400 CAS Number: 915087-33-1 Current Sponsor code: RADAR-1 CRPC Other descri

Sponsors

FONDAZIONE POLICLINICO UNIVERSITARIO AGOSTINO GEMELLI IRCCS UNIVERSITA' CATTOLICA DEL SACRO CUORE
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1. Willing and able to provide written informed consent 2. Male aged 18 years and above 3. Histologically or cytological confirmed adenocarcinoma of the prostate 4. Metastatic disease documented by positive bone scan or metastatic lesions other than liver or visceral metastasis on CT, MRI. If lymph node metastasis is the only evidence of metastasis, it must be = 2 cm in diameter. Alternatively, metastatic disease can be diagnosed by PET-Choline. 5. Prostate cancer progression documented by PSA according to PCWG2 or radiographic progression according to modified RECIST criteria 6. At least one negative prognostic features between: I. Mildly symptomatic prostate cancer defined as per BPI Question #3 (worst pain in last 24 hours) value 2 or 3 or II. Asymptomatic prostate cancer defined as per BPI Question #3 (worst pain in last 24 hours) value 0 or 1 and at least one between • PSA=80 ng/dl • Gleason Score = 8 • PSA doubling time = 3 months • Time from start ADT to CRPC less =65 years) yes F.1.3.1 Number of subjects for this age range 120

Exclusion criteria

Exclusion criteria: 1. Active infection or other medical condition that would make prednisone/prednisolone (corticosteroid) use contraindicated 2. Pathological finding consistent with small cell carcinoma of the prostate greater than 10% 3. Known brain metastasis 4. Use of major opiate analgesics for cancer-related pain (codeine and tramadol are allowed) 5. Prior cytotoxic chemotherapy, Androgen Receptor-targeted agent or biologic therapy for the treatment of CRPC or CSPC (previous bicalutamide is allowed) 6. Radiation therapy for treatment of the primary tumour within 6 weeks of Cycle 1, Day 1 7. Radiation or radionuclide therapy for treatment of metastatic CRPC and CSPC 8. Bicalutamide, nilutamide within 6 weeks of Cycle 1 Day 1 9. Uncontrolled hypertension (systolic BP = 160 mmHg or diastolic BP = 95 mmHg). Patients with a history of hypertension are allowed provided blood pressure is controlled by anti-hypertensive treatment 10. Active or symptomatic viral hepatitis or chronic liver disease 11. Clinically significant heart disease as evidenced by myocardial infarction, or arterial thrombotic events in the past 6 months, severe or unstable angina, or New York Heart Association (NYHA) Class II-IV heart disease or cardiac ejection fraction measurement of < 50% at baseline 12. Atrial Fibrillation, or other cardiac arrhythmia requiring therapy 13. Other malignancy with a previous diagnosis within 5 years (with the exclusions of NMIBC, CIN)

Design outcomes

Primary

MeasureTime frame
Main Objective: To investigate if docetaxel is superior to Androgen Receptor-targeted agent (abiraterone or enzalutamide) for treatment of patients with mCRPC and negative prognostic factors in terms of PFS.;Secondary Objective: To investigate if docetaxel is superior to Androgen Receptor-targeted agent (abiraterone or enzalutamide) for treatment of patients with mCRPC and negative prognostic factors in terms of biochemical response, radiographic progression, overall survival and quality of life.;Primary end point(s): To compare the radiographic Progression-Free Survival (rPFS) rate at 9 months of chemotherapy (Arm A, docetaxel plus prednisone) versus androgen receptor targeted therapy (Arm B, enzalutamide or abiraterone acetate plus prednisone) in mCRPC patients with adverse prognostic factors.;Timepoint(s) of evaluation of this end point: nine months

Secondary

MeasureTime frame
Secondary end point(s): To compare efficacy of docetaxel plus prednisone to enzalutamide or abiraterone acetate plus prednisone in terms of PSA response; To compare efficacy of docetaxel plus prednisone to enzalutamide or abiraterone acetate plus prednisone in terms of radiographic progression-free survival (rPFS); To compare efficacy of docetaxel plus prednisone to enzalutamide or abiraterone acetate plus prednisone in terms of overall survival (OS).;Timepoint(s) of evaluation of this end point: nine months; 18 months; 18 months

Countries

Italy

Contacts

Public ContactDirezione Scientifica Fondazione Po

Direzione scientifica Fondazione Policlinico A.Gemelli IRCCS

direzione.scientifica@policlinicogemelli.it0630155701

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026