ODM-201 in Addition to Standard ADT and Docetaxel in Metastatic Castration Sensitive Prostate Cancer (ARASENS)
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ClinicalTrials.gov Identifier: NCT02799602 |
Recruitment Status :
Completed
First Posted : June 15, 2016
Results First Posted : February 24, 2023
Last Update Posted : June 1, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Metastatic Hormone-sensitive Prostate Cancer | Drug: BAY1841788 / darolutamide (ODM-201) Drug: Standard ADT (androgen deprivation therapy) Drug: Docetaxel Drug: Placebo | Phase 3 |
This is a randomized, double-blind, placebo-controlled, multicenter phase III study. The study population will consist of approximately 1300 subjects with metastatic hormone sensitive prostate cancer (mHSPC), who will be randomized (1:1 ratio) to receive 600 mg (2 x 300 mg tablets) of darolutamide (ODM-201)/placebo twice daily with food, equivalent to a total daily dose of 1200 mg, in addition to standard androgen deprivation therapy (ADT) and docetaxel. Subjects will be stratified at randomization for the extent of disease and for Alkaline Phosphatase levels. All subjects will be treated with ADT as standard therapy. Six cycles of docetaxel will be administered after randomization.
The subjects considered for inclusion in the study will have metastatic prostate cancer and will be candidates for ADT and docetaxel.
Treatment with darolutamide (ODM-201)/placebo will be administered until symptomatic progressive disease, change of antineoplastic therapy, unacceptable toxicity, until subject withdraws consent, withdrawal from the study at the discretion of the investigator or his/her designated associate(s), death, non-compliance, or if sponsor terminates the study.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 1306 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-blind, Placebo Controlled Phase III Study of Darolutamide (ODM-201) Versus Placebo in Addition to Standard Androgen Deprivation Therapy and Docetaxel in Patients With Metastatic Hormone Sensitive Prostate Cancer |
Actual Study Start Date : | November 30, 2016 |
Actual Primary Completion Date : | October 25, 2021 |
Actual Study Completion Date : | April 11, 2023 |

Arm | Intervention/treatment |
---|---|
Experimental: BAY1841788 /darolutamide (ODM-201)+standard ADT+Docetaxel
Co-administration of BAY 1841788 / darolutamide (ODM-201), standard ADT and docetaxel
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Drug: BAY1841788 / darolutamide (ODM-201)
600mg (2 tablets of 300 mg) of darolutamide (ODM-201)/placebo twice daily with food, equivalent to a total a daily dose of 1200 mg in addition to standard ADT (luteinizing hormone releasing hormone (LHRH) agonist/antagonist or orchiectomy) and 6 cycles of docetaxel Drug: Standard ADT (androgen deprivation therapy) As prescribed by the treating physician. Drug: Docetaxel As prescribed by the treating physician. |
Placebo Comparator: Placebo + standard ADT + Docetaxel
Co-administration of Placebo matching BAY 1841788 / darolutamide (ODM-201) tablets, standard ADT and docetaxel
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Drug: Standard ADT (androgen deprivation therapy)
As prescribed by the treating physician. Drug: Docetaxel As prescribed by the treating physician. Drug: Placebo Placebo matching darolutamide (ODM-201) tablets in appearance, bid orally with food, in addition to standard ADT (luteinizing hormone releasing hormone [LHRH] agonist/antagonist or orchiectomy) and 6 cycles of docetaxel. |
- OS From Date of Randomization Until Death From Any Cause - Number of Events [ Time Frame: From randomization of the first subject until death from any cause up to the time 533 OS events were reached (approximately 59 months) ]
Overall survival (OS) was defined as the time from the date of randomization until death from any cause.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
Long-term (Survival) follow-up period: After Active follow-up, patients continued to be contacted approximately every 12 weeks by phone. The end of the Survival follow-up period was defined as when the patient died, was lost to follow-up, withdrew consent, or at the end-of-study.
- OS From Date of Randomization Until Death From Any Cause - Months [ Time Frame: From randomization of the first subject until death from any cause up to the time 533 OS events were reached (approximately 59 months) ]
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
Long-term (Survival) follow-up period: After Active follow-up, patients continued to be contacted approximately every 12 weeks by phone. The end of the Survival follow-up period was defined as when the patient died, was lost to follow-up, withdrew consent, or at the end-of-study.
Median, percentile and other 95% CIs were computed using Kaplan-Meier estimates.
NA = Value cannot be estimated due to censored data
- Number of Participants With TEAEs [ Time Frame: From the first dose of darolutamide or placebo until cut-off date for the final analysis planned as 30 JUN 2023 (approximately 79 months) ]
TEAEs = Treatment-emergent adverse events
Treatment-emergent AEs (TEAEs) were defined as any event(s) arising or worsening after the first dose of darolutamide or placebo, until 30 days after the last dose of darolutamide or placebo administration.
- Time to Castration-Resistant Prostate Cancer (CRPC) - Number of Events [ Time Frame: From randomization of the first subject to the first occurrence of an CRPC event up to approximately 59 months ]
Time to castration-resistant prostate cancer was defined as the time from randomization to the first occurrence of one of the following events: PSA progression, Radiological progression by bone lesions, or Radiological progression by soft tissue and visceral lesions.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Time to Castration-Resistant Prostate Cancer (CRPC) - Month [ Time Frame: From randomization of the first subject to the first occurrence of an CRPC event up to approximately 59 months ]
Time to castration-resistant prostate cancer was defined as the time from randomization to the first occurrence of one of the following events: PSA progression, Radiological progression by bone lesions, or Radiological progression by soft tissue and visceral lesions.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Time to Pain Progression - Number of Events [ Time Frame: From randomization of the first subject to the first occurrence of an pain progression event up to approximately 59 months ]
Time to pain progression was defined as the time from randomization to the first date a patient experienced pain progression.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
- Time to Pain Progression - Month [ Time Frame: From randomization of the first subject to the first occurrence of an pain progression event up to approximately 59 months ]
Time to pain progression was defined as the time from randomization to the first date a patient experienced pain progression.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Symptomatic Skeletal Event Free Survival (SSE-FS) - Number of Events [ Time Frame: From randomization of the first subject to the first occurrence of an SSE event or death from any cause, whichever occurred first up to approximately 59 months ]
Symptomatic skeletal event-free survival (SSE-FS) was defined as the time from randomization to the first occurrence of an SSE or death from any cause, whichever occurred first.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Symptomatic Skeletal Event Free Survival (SSE-FS) - Month [ Time Frame: From randomization of the first subject to the first occurrence of an SSE event or death from any cause, whichever occurred first up to approximately 59 months ]
Symptomatic skeletal event-free survival (SSE-FS) was defined as the time from randomization to the first occurrence of an SSE or death from any cause, whichever occurred first.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Time to First Symptomatic Skeletal Event (SSE) - Number of Events [ Time Frame: From randomization of the first subject to the first occurrence of an SSE event up to approximately 59 months ]
Time to the first SSE was defined as the time from randomization to the first occurrence of an SSE. Identical to the definition used for SSE-FS. Death was not considered as an event in this endpoint.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
- Time to First Symptomatic Skeletal Event (SSE) - Month [ Time Frame: From randomization of the first subject to the first occurrence of an SSE event up to approximately 59 months ]
Time to the first SSE was defined as the time from randomization to the first occurrence of an SSE. Identical to the definition used for SSE-FS. Death was not considered as an event in this endpoint.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Time to Initiation of Subsequent Antineoplastic Therapy - Number of Events [ Time Frame: From randomization of the first subject to the initiation of first subsequent systemic antineoplastic therapy up to approximately 59 months ]
Time to initiation of subsequent systemic antineoplastic therapy was defined as the time from randomization to the initiation of first subsequent systemic antineoplastic therapy.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Time to Initiation of Subsequent Antineoplastic Therapy - Month [ Time Frame: From randomization of the first subject to the initiation of first subsequent systemic antineoplastic therapy up to approximately 59 months ]
Time to initiation of subsequent systemic antineoplastic therapy was defined as the time from randomization to the initiation of first subsequent systemic antineoplastic therapy.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data
- Time to Worsening of Disease-Related Physical Symptoms - Number of Events [ Time Frame: From randomization of the first subject to the first increase in disease-related physical symptoms based on the NCCN-FACT-FPSI-17 questionnaire up to approximately 59 months ]
Time to worsening of disease-related physical symptoms was defined as the time from randomization to the first date a patient experienced an increase in disease-related physical symptoms based on the NCCN-FACT-FPSI-17 questionnaire.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
- Time to Worsening of Disease-Related Physical Symptoms - Month [ Time Frame: From randomization of the first subject to the first increase in disease-related physical symptoms based on the NCCN-FACT-FPSI-17 questionnaire up to approximately 59 months ]
Time to worsening of disease-related physical symptoms was defined as the time from randomization to the first date a patient experienced an increase in disease-related physical symptoms based on the NCCN-FACT-FPSI-17 questionnaire.
Treatment period: treatment was provided for all patients, twice daily, until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
- Time to Initiation of Opioid Use for ≥7 Consecutive Days - Number of Events [ Time Frame: From randomization of the first subject to the first opioid use for ≥7 consecutive days up to approximately 59 months ]
Time to the initiation of opioid use for ≥7 consecutive days was defined as the time fromrandomization to the date of the first opioid use for ≥7 consecutive days. Data of opioid use related to cancer pain was included in the analysis, and opioid use for non-malignant causes was excluded.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
- Time to Initiation of Opioid Use for ≥7 Consecutive Days - Month [ Time Frame: From randomization of the first subject to the first opioid use for ≥7 consecutive days up to approximately 59 months ]
Time to the initiation of opioid use for ≥7 consecutive days was defined as the time fromrandomization to the date of the first opioid use for ≥7 consecutive days. Data of opioid use related to cancer pain was included in the analysis, and opioid use for non-malignant causes was excluded.
Treatment period: until disease progression (symptomatic progressive disease, change of systemic antineoplastic therapy), unacceptable toxicity, consent withdrawal, withdrawal at the discretion of the investigator, death, or non-compliance.
Active follow-up visits from the discontinuation of the darolutamide or placebo treatment period for up to 1 year or until the patient could no longer travel to the clinic, died, was lost to follow-up, or withdrew informed consent and actively objected to collection of further data.
NA = Value cannot be estimated due to censored data

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Histologically or cytologically confirmed adenocarcinoma of prostate.
- Metastatic disease
- Candidates for ADT and docetaxel.
- Started ADT with or without first generation anti androgen, but no longer than 12 weeks before randomization
- An Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Adequate bone marrow, liver and renal function
Exclusion Criteria:
- Prior treatment with: LHRH agonist/antagonists; second generation androgen receptor (AR) inhibitors such as enzalutamide, ARN-509, darolutamide (ODM-201), other investigational AR inhibitors; CYP17 enzyme inhibitor such as abiraterone acetate or oral ketoconazole as antineoplastic treatment for prostate cancer; chemotherapy or immunotherapy for prostate cancer prior to randomization.
- Treatment with radiotherapy/radiopharmaceuticals within 2 weeks before randomization.
- Had any of the following within 6 months before randomization: stroke, myocardial infarction, severe/unstable angina pectoris, coronary/peripheral artery bypass graft, congestive heart failure (New York Heart Association Class III or IV)
- Had a prior malignancy. Adequately treated basal cell or squamous cell carcinoma of skin or superficial bladder cancer that has not spread behind the connective tissue layer (i.e., pTis, pTa, and pT1) is allowed, as well as any other cancer for which treatment has been completed 5 years before randomization and from which the subject has been disease-free
- Gastrointestinal disorder or procedure which is expected to interfere significantly with absorption of study treatment.
- Inability to swallow oral medications

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02799602

Study Director: | Bayer Study Director | Bayer |
Documents provided by Bayer:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Bayer |
ClinicalTrials.gov Identifier: | NCT02799602 |
Other Study ID Numbers: |
17777 2015-002590-38 ( EudraCT Number ) |
First Posted: | June 15, 2016 Key Record Dates |
Results First Posted: | February 24, 2023 |
Last Update Posted: | June 1, 2023 |
Last Verified: | May 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal. |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Prostatic Neoplasms Hypersensitivity Genital Neoplasms, Male Urogenital Neoplasms Neoplasms by Site Neoplasms Genital Diseases, Male Genital Diseases Urogenital Diseases Prostatic Diseases Male Urogenital Diseases |
Immune System Diseases Docetaxel Androgens Antineoplastic Agents Tubulin Modulators Antimitotic Agents Mitosis Modulators Molecular Mechanisms of Pharmacological Action Hormones Hormones, Hormone Substitutes, and Hormone Antagonists Physiological Effects of Drugs |