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An Observational Cohort Study to Describe and Compare the Use of Darolutamide, Enzalutamide and Apalutamide and How Well These Work in Men With Non-metastatic Castration-resistant Prostate Cancer (nmCRPC) in Real World Settings

Use of Darolutamide, Enzalutamide and Apalutamide for Non-metastatic Castration-Resistant Prostate Cancer (nmCRPC) - EXTension of the DEAR Real-world Study (NCT05362149)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06013475
Acronym
DEAR-EXT
Enrollment
1375
Registered
2023-08-28
Start date
2023-08-31
Completion date
2024-10-28
Last updated
2025-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-metastatic Castration-resistant Prostate Cancer

Brief summary

This is an observational cohort study in men with non-metastatic castration-resistant prostate cancer who received their usual treatment, which is 'Androgen receptor inhibitors' (ARIs) including darolutamide, enzalutamide, and apalutamide. The main purpose of this study is to collect data on the length of time men with nmCRPC continued treatment with darolutamide, enzalutamide, or apalutamide as prescribed by their doctors. Researchers will only include men who had not been treated with any new type of medication that blocks the action of hormones. The data will come from an electronic health record database called Precision Point Specialty (PPS) Prostate Cancer Electronic Medical Record (EMR) for men in the United States of America. EMR data will be verified and supplemented via patient chart review. Data collected will be from January 2019 to September 2023. .

Interventions

DRUGApalutamide

Decision by the treating physician

Decision by the treating physician

DRUGEnzalutamide

Decision by treating physician

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Men diagnosed with prostate cancer. 2. Diagnosis of nmCRPC prior to or within 90 days after the first ARI treatment initiation 3. Treatment with Darolutamide, Enzalutamide, or Apalutamide initiated for the first time 4. Age ≥ 18 years at treatment start 5. At least 6 months of Electro-Medical-Record activity after the treatment start unless the patient died earlier than 6 months.

Exclusion criteria

1. Evidence of metastatic disease before or 30 days after treatment start 2. Prior history of other primary cancers

Design outcomes

Primary

MeasureTime frame
Time to ARI treatment discontinuationRetrospective analysis from 01-Aug-2019 to 30 Sep 2023

Secondary

MeasureTime frame
Reasons for ARI treatment discontinuationRetrospective analysis from 01-Aug-2019 to 30 Sep 2023
Proportion of patients, who switched to another ARI therapyRetrospective analysis from 01-Aug-2019 to 30 Sep 2023
Frequency of adverse eventsRetrospective analysis from 01-Aug-2019 to 30 Sep 2023
Time to progression to mCRPCRetrospective analysis from 01-Aug-2019 to 30 Sep 2023
Dose modification of initial ARIRetrospective analysis from 01-Aug-2019 to 30 Sep 2023

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026