NCT07406282 · Bayer
A Study to Learn About Real-world Utilization and Outcomes of Darolutamide and Other Androgen Receptor Pathway Inhibitors (ARPIs) for Newly Diagnosed Metastatic Hormone-sensitive Prostate Cancer (de Novo mHSPC) in US Urology Clinics
(Double-DARE)
What this study is about
Prostate cancer is the most common non-skin cancer among men in the United States. For some men, the cancer has already spread to other parts of the body at the time of diagnosis; this is called metastatic hormone-sensitive prostate cancer (mHSPC).
View original scientific description
Prostate cancer is the most common non-skin cancer among men in the United States. For some men, the cancer has already spread to other parts of the body at the time of diagnosis; this is called metastatic hormone-sensitive prostate cancer (mHSPC). Treatment for mHSPC has advanced significantly, with new standards of care involving androgen deprivation therapy (ADT) combined with drugs known as androgen receptor pathway inhibitors (ARPIs), sometimes alongside chemotherapy like docetaxel. Darolutamide is an ARPI that is approved by the FDA for treating mHSPC in a "triplet" combination with ADT and docetaxel. It is also used in a "doublet" combination with ADT alone. However, there is limited information on how darolutamide is used in real-world clinical settings for this condition, which creates a gap in knowledge for making treatment decisions. This study aims to fill that gap by analyzing real-world data from electronic medical records. The primary goal is to describe the characteristics of patients with newly diagnosed mHSPC who are treated with darolutamide (either as a doublet or triplet) in urology clinics across the US. The study will also examine drug use patterns and clinical outcomes for these patients. Additionally, the study will explore the characteristics of patients treated with other ARPIs (abiraterone acetate, enzalutamide, and apalutamide) and assess the feasibility of creating matched patient groups for future comparative research. Data will be collected retrospectively from a large network of community urology practices in the US.
Interventions
DRUG
Darolutamide
Androgen receptor pathway inhibitor for treatment of metastatic hormone-sensitive prostate cancer
DRUG
Abiraterone acetate
Androgen receptor pathway inhibitor for treatment of metastatic hormone-sensitive prostate cancer
DRUG
Enzalutamide
Androgen receptor pathway inhibitor for treatment of metastatic hormone-sensitive prostate cancer
DRUG
Apalutamide
Androgen receptor pathway inhibitor for treatment of metastatic hormone-sensitive prostate cancer
Primary outcome measures
Describe baseline demographic of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): age
Time frame: Baseline
Age will be documented in years to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline demographic of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): age
Time frame: Baseline
Age will be documented in years to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): Concomitant Medication
Time frame: Baseline
Number of concomitant medication will be recorded to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): Concomitant Medication
Time frame: Baseline
Number of concomitant medication will be recorded to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline demographic of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): ethnicity
Time frame: Baseline
Ethnicity will be documented to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline demographic of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): ethnicity
Time frame: Baseline
Ethnicity will be documented to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): Charlson Comorbidity Index
Time frame: Baseline
The Charlson Comorbidity Index (CCI) (ranging 0 (no comorbid coonditions) to 5 (high comorbidity burden)) will be determined to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): Charlson Comorbidity Index
Time frame: Baseline
The Charlson Comorbidity Index (CCI) (ranging 0 (no comorbid coonditions) to 5 (high comorbidity burden)) will be determined to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): Gleason Score
Time frame: Baseline
The Gleason Score (primary and secondary cancer cell pattern are graded on a scale from 1 (least aggressive) to 5 (most aggressive)) will be determined to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): Gleason Score
Time frame: Baseline
The Gleason Score (primary and secondary cancer cell pattern are graded on a scale from 1 (least aggressive) to 5 (most aggressive)) will be determined to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): PSA
Time frame: Baseline
Most recent prostate specific antigen (PSA) value will be recorded to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): PSA
Time frame: Baseline
Most recent prostate specific antigen (PSA) value will be recorded to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy): de novo mHSPC Diagnosis
Time frame: Baseline
Record of time from de novo mHSPC diagnosis to Index Date to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe baseline clinical characteristics of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy): de novo mHSPC Diagnosis
Time frame: Baseline
Record of time from de novo mHSPC diagnosis to Index Date to characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: initial dose
Time frame: Day 1 - recorded on the index date (date of first evidence of darolutamide initiation/prescription).
Document initial dose. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: initial dose
Time frame: Day 1 - recorded on the index date (date of first evidence of darolutamide initiation/prescription).
Document initial dose. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: dose change
Time frame: From index date (Day 1) until the date of the first documented darolutamide dose modification, assessed up to 39 months.
Document dose change. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: dose change
Time frame: From index date (Day 1) until the date of the first documented darolutamide dose modification, assessed up to 39 months.
Document dose change. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: treatment interruption
Time frame: From index date (Day 1) until the date of the first documented darolutamide interruption, assessed up to 39 months.
Document period of treatment interruption. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics. Interruptions shorter than 60 days will be considered ongoing treatment (i.e., not counted as a discontinuation).
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: treatment interruption
Time frame: From index date (Day 1) until the date of the first documented darolutamide interruption, assessed up to 39 months.
Document period of tretament interruption. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics. Interruptions shorter than 60 days will be considered ongoing treatment (i.e., not counted as a discontinuation).
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: treatment discontinuation
Time frame: From index date until permanent darolutamide discontinuation, assessed up to 39 months.
Document permanent treatment discontinuation. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: treatment discontinuation
Time frame: From index date until permanent darolutamide discontinuation, assessed up to 39 months.
Document permanent treatment discontinuation. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period:switch to another Androgen receptor pathway inhibitor (ARPI)
Time frame: From the index date until the date of new ARPI initiation, assessed up to 39 months.
Date of new ARPI initiation after index; if no prior darolutamide discontinuation recorded, use the day prior to the new ARPI start as darolutamide discontinuation. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period:switch to another Androgen receptor pathway inhibitor (ARPI)
Time frame: From the index date until the date of new ARPI initiation, assessed up to 39 months.
Date of new ARPI initiation after index; if no prior darolutamide discontinuation recorded, use the day prior to the new ARPI start as darolutamide discontinuation. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe drug utilization patterns of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period:number of docetaxel cycles (if information is available)
Time frame: Date of first docetaxel infusion that occurs within ±90 days of index through the last documented docetaxel infusion
Document number of docetaxel cycles. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: adverse events
Time frame: From index date (Day 1) through 30 days after recorded end-of-darolutamide treatment
Document adverse events. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: adverse events
Time frame: From index date (Day 1) through 30 days after recorded end-of-darolutamide treatment
Document adverse events. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: comorbid conditions not recorded at baseline
Time frame: From index date (Day 1) through recorded end of darolutamide treatment, up to 39 months.
Any new comorbid condition documented from the index date (date of first darolutamide/ARPI initiation) through the recorded end-of-darolutamide treatment in the PPS database. Document comorbid conditions. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period:comorbid conditions not recorded at baseline
Time frame: From index date (Day 1) through recorded end of darolutamide treatment, up to 39 months.
Any new comorbid condition documented from the index date (date of first darolutamide/ARPI initiation) through the recorded end-of-darolutamide treatment in the PPS database. Document comorbid conditions. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: PSA response ≥90%
Time frame: Evaluated at 3, 6, and 12 months from the index treatment.
Document PSA response ≥90%. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period:PSA response ≥90%
Time frame: Evaluated at 3, 6, and 12 months from the index treatment.
Document PSA response ≥90%. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: PSA decline to <0.2 ng/mL (undetectable)
Time frame: Evaluated at 3, 6, and 12 months from the index treatment.
Document PSA decline to \<0.2 ng/mL (undetectable). Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: PSA decline to <0.2 ng/mL (undetectable)
Time frame: Evaluated at 3, 6, and 12 months from the index treatment.
Document PSA decline to \<0.2 ng/mL (undetectable). Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: initiation of next antineoplastic therapy
Time frame: From index date (Day 1) until initiation of next antineoplastic therapy, assessed up to 39 months.
Document date of next antineoplastic therapy. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: initiation of next antineoplastic therapy
Time frame: From index date (Day 1) until initiation of next antineoplastic therapy, assessed up to 39 months.
Document date of next antineoplastic therapy. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: radiographic progression to mCRPC
Time frame: From index date (Day 1) until radiographic progression to mCRPC, assessed up to 39 months.
Document radiographic progression to mCRPC. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: radiographic progression to mCRPC
Time frame: From index date (Day 1) until radiographic progression to mCRPC, assessed up to 39 months.
Document radiographic progression to mCRPC. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT + docetaxel (triplet therapy) during the study period: all-cause mortality
Time frame: From index date (Day 1) until death from any cause, assessed up to 39 months.
Date of death. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT + docetaxel in adult men diagnosed with de novo mHSPC in US urology clinics.
Describe treatment outcomes of de novo mHSPC patients receiving darolutamide + ADT (doublet therapy) during the study period: all-cause mortality
Time frame: From index date (Day 1) until death from any cause, assessed up to 39 months.
Date of death. Characterize the real-world utilization and treatment outcomes for the darolutamide combination with ADT in adult men diagnosed with de novo mHSPC in US urology clinics.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Male patients with evidence of de novo mHSPC during the study period
- Initiation of ARPI therapy during the patient identification period and within ±90 days from the mHSPC diagnosis
- Age ≥18 years at index date (ARPI initiation for mHSPC)
- Initiation of ADT and/or docetaxel therapy within ±90 days from index date
- At least 90 days of EMR activity prior to the index date
- At least 90 days of EMR activity post-index, unless the patient died earlier.
Exclusion criteria
- History of other primary cancers (except non-melanoma skin cancer)
- Use of PARP inhibitors, chemotherapy (other than docetaxel), immunotherapy or radiopharmaceuticals prior to index date
- Evidence of castration resistance (CR) flag in the database any time before the index date or up to 90 days after the de novo mHSPC diagnosis
- Clinical trial participation during the study period.
Where
- Cleveland, Ohio
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 7, 2026 · Source of record for eligibility and locations