Neoadjuvant Darolutamide and Relugolix Combination Preceding Radical Prostatectomy for Prostate Cancer

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexMale
Age18+
SponsorAdventHealth

About this trial

The goal of this clinical trial is to determine the safety and feasibility of a new combination of darolutamide and relugolix as neoadjuvant therapy preceding radical prostatectomy (RP) for high-risk prostate cancer (PCa) in adult males.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Histologically or cytologically confirmed adenocarcinoma of the prostate

ECOG performance status 0-1

Ability to swallow oral medications and comply with study procedures and requirements.

Males ≥18 years

Disqualifiers

Histologic variants including neuroendocrine differentiation, small cell, sarcomatoid, ductal adenocarcinoma, squamous or transitional cell carcinoma) comprising more than 50% of the sample as determined by pathology review

Participants who have had chemotherapy or radiotherapy within 4 weeks prior to planned cycle 1 day 1 of study treatment.

Participants who have received anti-neoplastic intervention or experimental antineoplastic therapy within 14 days of planned cycle 1 day 1 of study therapy.

Participants who are receiving any other investigational agents.

Trial design

Design model

Single group

Treatments tested in this trial

  • Darolutamide

    Drug

    600 mg (two 300 mg tablets) taken orally twice daily.

  • Relugolix

    Drug

    A loading dose of 360 mg on the first day, followed by 120 mg taken orally once daily.

  • Radical Prostatectomy

    Procedure/Surgery

    Performed at least 48 hours and within 2 weeks after the completion of neoadjuvant therapy.

Treatment groups

30 Participants
are divided into 1 treatment group
Group A: Combination Therapy ArmExperimental treatment 3 interventions

Trial outcomes

Primary outcomes

1

Percentage of patients completing therapy without severe adverse events.

Time frame
From enrollment, up to 8 weeks after radical prostatectomy.
2

Number of patients experiencing treatment-related adverse events using CTCAE version 5.0.

Time frame
From enrollment, up to 8 weeks following radical prostatectomy (RP)

Secondary outcomes

1

Objective Radiographic Response

Changes in the largest diameter (unidimensional measurement) of the tumor lesions and the shortest diameter in the case of malignant lymph nodes in millimeters (mm). Response refers to the reduction in tumor size according to the Response Evaluation Criteria in Solid Tumors (RECIST version 1.1) criteria (Complete Response, Partial Response, Stable Disease, or Progressive Disease).

Time frame
From enrollment, up to 12 weeks (end of neoadjuvant therapy).
2

Prostate-specific antigen (PSA) Response

The unit of measure is nanograms per milliliter (ng/mL). A PSA response is defined as a decline of ≥50% from baseline levels.

Time frame
From enrollment, up to 8 weeks after radical prostatectomy.
3

Plasma Concentration of Darolutamide and Relugolix

This measure involves assessing the plasma concentration of darolutamide and relugolix at specified time points to determine their pharmacokinetic profiles. Units of measure: Concentration in nanograms per milliliter (ng/mL).

Time frame
From enrollment, up to Day 1 of Cycle 3 (Each cycle is 28 days).

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

AdventHealth

Lead sponsor

Bayer

Collaborator

Sumitomo Pharma Switzerland

Collaborator