~45 spots leftby Apr 2026

A Study of Tadalafil Use With Finasteride in Men With Enlarged Prostates and Urinary Symptoms

Recruiting in Palo Alto (17 mi)
+64 other locations
Age: 18+
Sex: Male
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 3
Waitlist Available
Sponsor: Eli Lilly and Company
Pivotal Trial (Near Approval)
Prior Safety Data

Trial Summary

What is the purpose of this trial?

The purpose of this study is to investigate the efficacy and safety of once daily tadalafil when taken with finasteride as a treatment for men with signs and symptoms of Benign Prostatic Hyperplasia and demonstrable prostate enlargement.

Research Team

C1

Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST)

Principal Investigator

Eli Lilly and Company

Eligibility Criteria

Inclusion Criteria

All other Benign Prostatic Hyperplasia (BPH) therapy (including herbal preparations) for at least 4 weeks prior to receiving study medication.
Overactive bladder therapy (including antimuscarinics) for at least 4 weeks prior to receiving study medication.
Erectile Dysfunction therapy (including herbal preparations) for at least 4 weeks prior to receiving study medication.
See 3 more

Treatment Details

Interventions

  • Finasteride (5-alpha Reductase Inhibitor)
  • Placebo (Drug)
  • Tadalafil (Phosphodiesterase Type 5 Inhibitor)
Participant Groups
2Treatment groups
Experimental Treatment
Placebo Group
Group I: TadalafilExperimental Treatment2 Interventions
Group II: PlaceboPlacebo Group2 Interventions

Finasteride is already approved in Canada, Japan for the following indications:

🇨🇦
Approved in Canada as Finasteride for:
  • Benign prostatic hyperplasia
  • Male pattern baldness
🇯🇵
Approved in Japan as Finasteride for:
  • Benign prostatic hyperplasia
  • Male pattern baldness

Find a Clinic Near You

Who Is Running the Clinical Trial?

Eli Lilly and Company

Lead Sponsor

Trials
2,708
Recruited
3,720,000+
Dr. Daniel Skovronsky profile image

Dr. Daniel Skovronsky

Eli Lilly and Company

Chief Medical Officer since 2018

MD from Harvard Medical School

David A. Ricks profile image

David A. Ricks

Eli Lilly and Company

Chief Executive Officer since 2017

BSc from Purdue University, MBA from Indiana University