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NCT06015321

PHASE2

An Open Label Phase II Study of First-Line Maintenance Enzalutamide Following Docetaxel Plus Androgen-Deprivation Therapy in Patients With Previously-Untreated, Metastatic, Castration-Naive Prostatic Adenocarcinoma

Sponsor: Samsung Medical Center

View on ClinicalTrials.gov

Summary

Although surgical or medical castration (i.e., androgen-deprivation therapy, ADT) is considered standard treatment in metastatic castration-naïve PC (mCNPC) patients, current guidelines have established the addition docetaxel or modern androgen receptor targeting agents (ARTAs; abiraterone acetate or enzalutamide) to ADT as the standard of care for patients with mCNPC \[1,2\]. One of the major challenges in the management of mCNPC includes balancing the toxicity of first-line docetaxel with clinical benefit. Our previous clinical studies suggested that the tolerability of docetaxel could be improved by using a biweekly regimen \[3,4\], without compromising efficacy. There is a growing interest in maintenance therapy as a strategy for prolonging the benefit of first-line therapy while minimizing long-term toxicity. In phase III trials involving first-line enzalutamide in mCNPC (ENZAMET and ARCHES), earlier treatment with docetaxel was permitted \[5,6\]. Based on these considerations, we hypothesized that enzalutamide maintenance therapy would improve outcomes in patients who had received first-line biweekly docetaxel plus ADT for mCNPC.

Official title: Open Label Trial of Maintenance Enzalutamide in CRPC

Key Details

Gender

MALE

Age Range

20 Years - Any

Study Type

INTERVENTIONAL

Enrollment

Start Date

2023-10-01

Completion Date

2026-04-30

Last Updated

2023-08-29

Healthy Volunteers

Conditions

Prostatic Adenocarcinoma

Interventions

DRUG

Enzalutamide

enzalutamide 160 mg PO daily

Inclusion Criteria: * For inclusion of a subject in the study, all of the following inclusion criteria must be fulfilled: 1. Subject is a male at least 20 years of age. 2. Subject has a histologically or cytologically confirmed diagnosis of adenocarcinoma of prostate. 3. Subject has radiologic and clinical evidence of metastatic disease initially or after treatment for localized disease. They must have metastatic or progressive disease for which there is no further curative treatment available. 4. Subject has an ECOG performance status of 0 to 1. 5. Subject has a life expectancy of 3 months or more. 6. At least 4 weeks since the last surgical procedures or radiotherapy prior to enrolment. Subjects must have recovered to \<Grade 2 from all acute toxicities or toxicity must be deemed irreversible by the investigator. 7. Acceptable liver function: 8. Acceptable renal function 9. Acceptable hematologic status (without growth factor support or transfusion dependency): 10. Subject must agree to use an adequate method of contraception (condom) if he is having sex with a woman of childbearing potential or with a woman who is pregnant. 11. Written and voluntary informed consent understood, signed and dated. Exclusion Criteria: For inclusion of a subject in the study, any of the following inclusion criteria must not be fulfilled: 1. Ongoing treatment with an anticancer agent not contemplated in this protocol 2. Pathologic finding consistent with neuroendocrine or small cell carcinoma 3. Any history of clinically relevant coronary artery disease or myocardial infarction within the last 3 years, New York Heart Association (NYHA) grade III or greater congestive heart failure, cerebrovascular attack within the prior year, or current serious cardiac arrhythmia requiring medication except atrial fibrillation. 4. Known uncontrolled brain, leptomeningeal or epidural metastases (unless treated and well controlled for at least 4 weeks prior to Cycle 1 Day 1). Subjects that develop brain metastasis during the study may have their treatment interrupted to receive a course of cranial radiation and restart trial medication after a recovery period of at least 1 week. High dose corticosteroids may be employed for the management of cranial radiation but must be tapered off before resuming treatment. 5. Non-tolerable \>Grade 2 neuropathy or evidence of unstable neurological symptoms within 4 weeks of Cycle 1 Day 1. 6. Major surgery, other than diagnostic surgery, within 4 weeks prior to Cycle 1 Day 1, without complete recovery. 7. Active, uncontrolled bacterial, viral, or fungal infections, requiring systemic therapy. 8. Subjects who have exhibited allergic reactions to taxanes. 9. Concomitant disease or condition that could interfere with the conduct of the study, or that would, in the opinion of the Investigator, pose an unacceptable risk to the subject in this study. 10. The subject has legal incapacity or limited legal capacity. Dementia or significantly altered mental status that would limit the understanding or rendering of informed consent and compliance with the requirements of this protocol. Unwillingness or inability to comply with the study protocol for any reason.

Locations (1)

Samsung Medical Center

Seoul, Korea, South Korea