NCT06944145

Brief Summary

SRD5A2 is a critical enzyme for prostatic development and growth, and the SRD5A2 inhibitor, finasteride, is used to treat benign prostatic hyperplasia (BPH). SRD5A2 is absent in 30% of normal adult men, which explains the resistance of a subset of patients to this commonly prescribed drug. This project proposes new combination therapies (5-ARI+raloxifene) and evaluates novel non-invasive biomarkers, based on alternative pathways that lead to prostatic enlargement.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
242

participants targeted

Target at P75+ for phase_2

Timeline
53mo left

Started Dec 2025

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress9%
Dec 2025Aug 2030

First Submitted

Initial submission to the registry

March 25, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 25, 2025

Completed
7 months until next milestone

Study Start

First participant enrolled

December 3, 2025

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2029

Expected
1.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2030

Last Updated

March 23, 2026

Status Verified

March 1, 2026

Enrollment Period

3.5 years

First QC Date

March 25, 2025

Last Update Submit

March 19, 2026

Conditions

Keywords

BPHSRD5A2FinasterideLUTS

Outcome Measures

Primary Outcomes (1)

  • Clinical response to at 12 months after study enrollment

    The primary endpoint is the clinical response (yes-no) to therapy at 12 months after study enrollment between the combination and monotherapy treatment groups. Clinical response will be defined as ≥3-point decrease in International Prostate Symptom Score between baseline and the 12-month timepoint, adjusting for baseline measure of International Prostate Symptom Score. The minimal International Prostate Symptom Score is 0, denoting no symptoms, and the maximum score is 35, denoting severe symptoms.

    From enrollment to the end of treatment at 12 months

Secondary Outcomes (5)

  • Heterogeneity of clinical response to at 12 months after study enrollment by methylation score

    From enrollment to the end of treatment at 12 months

  • Comparison of mean International Prostate Symptom Score between study arms

    From enrollment to the end of treatment at 12 months

  • Comparison of mean International Index of Erectile Function Questionnaire scores between study arms

    From enrollment to the end of treatment at 12 months

  • Correlation between methylation and MRI scores

    From enrollment to the end of treatment at 12 months

  • Number of Participants with Treatment-Related Adverse Events as Assessed by CTCAE v5.0

    From enrollment to the end of treatment at 12 months

Study Arms (2)

Finasteride + Inactive Placebo Monotherapy

ACTIVE COMPARATOR

Participants may be randomized into the Finasteride + Inactive Placebo Monotherapy arm.

Drug: Finasteride

Finasteride + Raloxifene Combination Therapy

EXPERIMENTAL

Participants may be randomized into the Finasteride + Raloxifene Combination Therapy arm.

Drug: raloxifeneDrug: Finasteride

Interventions

Participants randomized to the Finasteride + Inactive Placebo Monotherapy arm will self-administer finasteride at 5 mg orally/day and placebo capsule daily.

Finasteride + Inactive Placebo MonotherapyFinasteride + Raloxifene Combination Therapy

Participants in the Finasteride + Raloxifene Combination Therapy Arm will receive both Finasteride and Raloxifene as their intervention. Participants randomized to the Finasteride + Raloxifene Combination Therapy arm will self-administer finasteride at 5 mg orally/day and raloxifene at 60 mg orally/day.

Finasteride + Raloxifene Combination Therapy

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥18 yrs old on the day of study consent;
  • Finasteride has been recommended for treatment of BPH by a physician;
  • PSA \<20ng/ml within the last six months;
  • Willingness to maintain any current genitourinary medications (e.g., beta agonists, alpha blockers, anticholinergics);
  • Patient is able and willing to provide written informed consent.

You may not qualify if:

  • Active or past history of venous thromboembolism, including deep vein thrombosis, pulmonary embolism, and retinal vein thrombosis;
  • Previous diagnosis with any prostatic malignancy or precancerous lesions (atypical glandular foci);
  • History of pelvic radiation;
  • Actively receiving intravesical therapy for bladder cancer;
  • Received treatment with any demethylating medications (azacitidine, decitabine, zebularine, guadecitabine, hydralazine);
  • Current use of warfarin;
  • Prior treatment with 5ARI medications (e.g., Finasteride or Dutasteride) in the last year;
  • Diagnosed with diabetes mellitus;
  • Diagnosed with any neurodegenerative diseases;
  • History of allergic reaction to any intravenous (IV) iron replacement products;
  • Currently taking cholestyramine medication;
  • Contraindications to MRI examination, which may include:
  • Cardiac pacemaker
  • Intracranial clips, metal implants, or external clips within 10mm of the head
  • Previous metal injury in the eye or occupation risk to ferrous metal in the eye (e.g. metalworker)
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beth Israel Deaconess Medical Center

Boston, Massachusetts, 02215, United States

RECRUITING

MeSH Terms

Conditions

Prostatic Hyperplasia

Interventions

Raloxifene HydrochlorideFinasteride

Condition Hierarchy (Ancestors)

Prostatic DiseasesGenital Diseases, MaleGenital DiseasesUrogenital DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

TamoxifenStilbenesBenzylidene CompoundsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsAndrostenesAndrostanesSteroidsFused-Ring CompoundsPolycyclic CompoundsAzasteroidsSteroids, Heterocyclic

Study Officials

  • Aria Olumi, MD

    Beth Israel Deaconess Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief, Division of Urology, BIDMC

Study Record Dates

First Submitted

March 25, 2025

First Posted

April 25, 2025

Study Start

December 3, 2025

Primary Completion (Estimated)

June 1, 2029

Study Completion (Estimated)

August 31, 2030

Last Updated

March 23, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

All individual participant data collected throughout the trial. Data will be fully de-identified prior to sharing.

Shared Documents
ICF

Locations