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Darolutamide

Phase 2

Prostate Cancer | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Mar 9, 2026

Target and mechanism

Molecular targetAR
Target classAntagonist
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment33

FDA Designations

No designations recorded

Clinical trial landscape

Darolutamide · 1 trial · 3 indications

Phase 2 1
NCT06463457Comeback From Long coursE Androgen Deprivation Therapy (ADT) With RElugolix and Darolutamide (CLEARED)Prostate Cancer
ACTIVE NOT_RECRUITING33 Analytics
PHASE2ACTIVE NOT_RECRUITING
Comeback From Long coursE Androgen Deprivation Therapy (ADT) With RElugolix and Darolutamide (CLEARED)
Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

18-month Rate of Testosterone Recovery
42 months (18 months after completion of 2 years of treatment)

Rate of testosterone recovery (TR) defined as the proportion of participants achieving testosterone ≥ lower limit of normal by 18 months after completion of study treatment. Participants who withdrew from trial therapy (due to early progression, toxicity, patient/physician decision or death) before completing 2 years of treatment will be excluded from the analysis. Participants who require resumption of androgen deprivation, withdraw, are lost to follow-up, or die before 18 months of post-treatment follow up has been completed without having achieved testosterone recovery ≥ lower limit of normal beforehand will be included in the analysis and will be considered to be non-recovered.

Grade 3-5 Treatment-related Toxicity Rate
24 months. AE collected on day 1 of each cycle (up to 26 cycles in total, each cycle is 28 days)

All grade 3-5 adverse events (AE) with treatment attribution of possibly, probably or definitely related to study treatment based on Common Terminology Criteria for Adverse Events (CTCAE) version 5 are counted. Rate is the proportion of treated participants experiencing at least one of these adverse events as defined during the time of observation.

Secondary Endpoints

Geometric Mean Ratio of Single-dose Cmax (highest concentration of drug) and Steady-state Ctrough (the concentration of drug in the blood immediately before the next dose is administered)
29 days. Pharmacokinetic (PK) collection prior to the first dose of both drugs and then after 2 hours, 4 hours and 8 hours (Cohort 1) or after 24 hours, 7 days, and 28 days (Cohort 2) of uninterrupted dosing during cycle 1 (each cycle is 28 days).
Rate of Treatment Discontinuation
24 months. Treatment planned on day 1 of each cycle (up to 26 cycles in total, each cycle is 28 days)
Mean Functional Assessment of Cancer Therapy - Prostate (FACT-P) Score
42 months. Collected at Cycle 1 day 1 (each cycle is 28 days), end of treatment (24 months), and end of study at 18 months after completion of treatment (42 months)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1 Short Pharmacokinetics (PK)EXPERIMENTALEnrolled participants will complete study procedures as follows: * Cycle 1: * Day 1 of 28 Day Cycle: Predetermined dose of Relugolix 1x daily. First dose will be administered in-clinic. * Day 1 of 28 Day Cycle: Predetermined dose of Darolutamide 2x daily. First dose will be administered in-clinic. * Cycle 2 through End of Treatment: * Predetermined dose of Relugolix 1x daily. * Predetermined dose of Darolutamide 2x daily. * End of Treatment visit. * Follow Up: every 3 months for 18 months.
Cohort 2 Long Pharmacokinetics (PK)EXPERIMENTALEnrolled participants will complete study procedures as follows: * Cycle 1: * Days 1, 2, 8 of 28 Day Cycle: Predetermined dose of Relugolix 1x daily. First dose will be administered in-clinic. * Days 1, 2, 8 of 28 Day Cycle: Predetermined dose of Darolutamide 2x daily. First dose will be administered in-clinic. * Cycle 2: * Day 1 of 28 Day Cycle: Predetermined dose of Relugolix 1x daily. First dose will be administered in-clinic. * Day 1 of 28 Day Cycle: Predetermined dose of Darolutamide 2x daily. First dose will be administered in-clinic. * Cycle 3 through End of Treatment: * Predetermined dose of Relugolix 1x daily. * Predetermined dose of Darolutamide 2x daily. * End of Treatment visit. * Follow Up: every 3 months for 18 months.

Interventions

NameTypeDescription
DarolutamideDRUGAndrogen receptor antagonist, tablet taken orally per protocol.
RelugolixDRUGGonadotropin-releasing hormone (GnRH) receptor antagonist, tablet taken orally per protocol.
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * Participants must have histologically or cytologically confirmed prostate cancer. * Hormone-sensitive prostate cancer (with detectable prostate-specific antigen \[PSA\] \> 0.02 ng/ml, testosterone ≥ lower limit of normal \[LLN\] per institutional assay) planned for two years o...

Countries:United States
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Competitive Landscape -Prostate Cancer 254 trials

Frequently asked questions about Darolutamide

What is Darolutamide used for in prostate cancer?

Darolutamide is an investigational small molecule being studied for the treatment of prostate cancer, including advanced and hormone-sensitive prostate cancer. It is currently in Phase 2 clinical development and is not yet approved by the FDA.

Who makes Darolutamide?

Darolutamide is being developed by Pfizer, Inc., which trades under the ticker PFE. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with prostate cancer.

What phase is Darolutamide in?

Darolutamide is in Phase 2 clinical development. It is currently being studied in an active clinical trial that is not yet recruiting participants, and the drug remains investigational, meaning it has not been approved for commercial use.

What clinical trials is Darolutamide in?

Darolutamide is being evaluated in a Phase 2 clinical trial with the identifier NCT06463457, titled "Comeback From Long coursE Androgen Deprivation Therapy (ADT) With RElugolix and Darolutamide (CLEARED)." This trial is active but not recruiting and is enrolling 33 male patients aged 18 years and older in the United States.

Is Darolutamide FDA approved?

Darolutamide is not FDA approved. It is an investigational drug currently in Phase 2 clinical trials for prostate cancer. The ongoing study is active but not recruiting, and the drug has not yet completed the clinical development process required for regulatory approval.