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Benign Prostatic HyperplasiaPhase 2NCT00783094

Study of Tadalafil Once-a-Day for 12 Weeks in Japanese Men With Benign Prostatic Hyperplasia Followed by an Open-Label Extension

A Phase 2 study testing Tadalafil 2.5 mg and Tadalafil 5 mg in people with Benign Prostatic Hyperplasia, run by Eli Lilly and Company at 6 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is a randomized, double-blind, placebo-controlled, parallel-design to compare the efficacy and safety of tadalafil once-a-day dosing versus placebo for 12 weeks followed by an open-label extension to evaluate the long-term safety and efficacy of tadalafil in Japanese men with signs and symptoms of benign… Read more about this study

Who is it for?
Ages 45 years and older, men only
Conditions the study is for
Benign Prostatic Hyperplasia
What is being tested?
Tadalafil 2.5 mg and Tadalafil 5 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
422 participants
Where
6 sitesJapan
Study dates
Nov 2008to Apr 2010
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 45 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Japanese Males, 45 years old or older, with benign prostatic hyperplasia (BPH) for at least 6 months prior to Visit 1 and an International Prostate Symptom Score (IPSS) greater than or equal to 13 at Visit 2.
  • Agree not to use any other approved or experimental pharmacologic BPH, erectile dysfunction (ED), and/or overactive bladder (OAB) treatments at any time during the study.
  • Have not taken Finasteride or Dutasteride therapy, Anti-androgenic hormone or any other BPH therapy, ED or OAB therapy for specified duration of time prior to Visit 2.

Who cannot join

  • Prostate specific antigen (PSA) score beyond acceptable range defined for study at Visit 1.
  • History of urinary retention or lower urinary tract (bladder) stones within 6 months of Visit 1.
  • History of urethral obstruction due to stricture, valves, sclerosis, or tumor at Visit 1.
  • Clinical evidence of prostate cancer at Visit 1.
  • Clinical evidence of any of the bladder or urinary tract conditions, which may affect lower urinary tract symptom at Visit 1.
  • History of cardiac conditions, including Angina requiring certain treatment with nitrates, unstable angina defined for study, positive cardiac stress test before starting the study.
  • History of significant central nervous system (CNS) injuries (including stroke or spinal cord injury) within 6 months of Visit 1.
  • Use of any nitrates, cancer chemotherapy, androgens, antiandrogens, estrogens, luteinizing hormone-releasing hormone (LHRH) agonists/antagonists, or anabolic steroids at Visit 1.

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

Japan6 sites
  • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.

    Chiba, 274-0825

  • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.

    Hiroshima, 730-0013

  • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.

    Kanagawa, 226-0025

  • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.

    Kyoto, 607-8085

  • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.

    Osaka, 561-0832

  • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.

    Tokyo, 150-0002

Other trials in Japan

About this study

Official title: A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Parallel-Design Study to Evaluate the Efficacy and Safety of Tadalafil Once-a-Day Dosing for 12 Weeks Followed by an Open-Label Extension to Evaluate the Long-Term Safety and Efficacy of Tadalafil in Japanese Men With Signs and Symptoms of Benign Prostatic Hyperplasia

This study is a randomized, double-blind, placebo-controlled, parallel-design to compare the efficacy and safety of tadalafil once-a-day dosing versus placebo for 12 weeks followed by an open-label extension to evaluate the long-term safety and efficacy of tadalafil in Japanese men with signs and symptoms of benign prostatic hyperplasia.

Being tested
Tadalafil 2.5 mg, Tadalafil 5 mg, Placebo
Medical subject headings
Prostatic Hyperplasia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tadalafil 2.5 mgDrug

    Also called LY450190, Cialis

    oral, daily

  • Tadalafil 5 mgDrug

    Also called LY450190, Cialis

    oral, daily

  • PlaceboDrug

    oral, daily

Study groups in NCT00783094
Study groupRoleWhat they receive
Tadalafil 2.5 milligrams (mg)Experimental2.5 mg tadalafil tablet by mouth once a day for 12 weeks followed by 5 mg tadalafil tablet by mouth once a day for 42 weeks.
Receives: Drug: Tadalafil 2.5 mg
Tadalafil 5 mgExperimental5 mg tadalafil tablet by mouth once a day for 12 weeks then continue 5 mg tadalafil tablet by mouth once a day for 42 weeks.
Receives: Drug: Tadalafil 5 mg
PlaceboPlacebo comparatorPlacebo tablet taken by mouth once a day for 12 weeks. Then subjects may take 5 mg tadalafil tablet by mouth once a day for 42 weeks.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in International Prostate Symptom Score (IPSS) Total Score at 12-Week Endpoint

    The IPSS Total Score is obtained by combining the scores of the responses to 1 through 7 component questions. Each question is scored from 0-5 for an IPSS range of 0-35 points; higher numerical scores from the IPSS questionnaire represent greater severity of symptoms.

    Measured: Baseline, 12 weeks

Secondary outcomes (22)
  1. Change From Baseline in International Prostate Symptom Score (IPSS) Storage (Irritative) Subscore at 12-Week Endpoint

    IPSS storage (irritative) subscore is the sum of Questions 2, 4 and 7 of the IPSS questionnaire. Scores range from 0 (not at all) to 5 (frequent irritative symptoms), thus the 3 questions of the irritative subscore range from 0 to 15.

    Measured: Baseline, 12 weeks

  2. Change From Baseline in International Prostate Symptom Score (IPSS) Voiding (Obstructive) Subscore at 12-Week Endpoint

    IPSS obstructive subscore is the sum of Questions 1, 3, 5 and 6 of the IPSS questionnaire. Scores range from 0 (not at all) to 5 (frequent obstructive symptoms), thus the 4 questions of the obstructive score range from 0 to 20.

    Measured: Baseline, 12 weeks

  3. Change From Baseline in IPSS Quality of Life (QoL) Index at 12-Week Endpoint

    Assessment of quality of life (QOL) by urinary symptoms, with scores ranging from 0 (delighted) to 6 (terrible).

    Measured: Baseline, 12 weeks

  4. Change From Baseline in Overactive Bladder Symptom Score (OABSS) at 12-Week Endpoint

    The OABSS is a four-symptom questionnaire to assess overactive bladder (OAB) symptoms: daytime frequency, nighttime frequency, urgency, and urgency incontinence. Scores range from 0 - 15, with higher scores indicating more severe OAB symptoms.

    Measured: Baseline, 12 weeks

  5. Change From Baseline in Uroflowmetry Parameter: Peak Flow Rate (Qmax) at 12-Week Endpoint

    Uroflowmetry was assessed by Qmax, defined as the peak urine flow rate (measured in mL/second using a standard calibrated flowmeter).

    Measured: Baseline, 12 weeks

  6. Tadalafil Pharmacokinetics in Japanese Men: Plasma Concentration Measurement

    Plasma from participants in the tadalafil treatment groups were assayed using a validated liquid chromatographic/mass spectrometric (LC/MS) method.

    Measured: Baseline, 12 weeks

  7. Number of Participants With Adverse Events During 12 Weeks of the Study

    A listing of Adverse Events are reported in the Reported Adverse Event Section.

    Measured: Baseline through 12 weeks

  8. Change From Baseline in Blood Pressure at 12-Week Endpoint

    Measured: Baseline, 12 weeks

  9. Change From Baseline in Sitting Heart Rate at 12-Week Endpoint

    Measured: Baseline, 12 Weeks

  10. Change From Baseline in Postvoid Residual Volume (PVR) at 12-Week Endpoint

    Postvoid residual volume (PVR) is measured by ultrasound at regular intervals.

    Measured: Baseline, 12 weeks

  11. Change From Baseline in Prostate Specific Antigen (PSA) at 12-Week Endpoint

    Measurement of nanograms of PSA per milliliter (ng/mL) of blood.

    Measured: Baseline, 12 weeks

  12. Change From Baseline in the International Prostate Symptom Score (IPSS) Total Score at 54-Week Endpoint

    The IPSS Total Score is obtained by combining the scores of the responses to 1 through 7 component questions. Each question is scored from 0-5 for an IPSS range of 0-35 points; higher numerical scores from the IPSS questionnaire represent greater severity of symptoms.

    Measured: Baseline, 54 weeks

  13. Change From Baseline in International Prostate Symptom Score (IPSS) Storage (Irritative) Subscore at 54-Week Endpoint

    IPSS storage (irritative) subscore is the sum of Questions 2, 4 and 7 of the IPSS questionnaire. Scores range from 0 (not at all) to 5 (frequent irritative symptoms), thus the 3 questions of the irritative subscore range from 0 to 15.

    Measured: Baseline, 54 weeks

  14. Change From Baseline in International Prostate Symptom Score (IPSS) Voiding (Obstructive) Subscore at 54-Week Endpoint

    IPSS obstructive subscore is the sum of Questions 1, 3, 5 and 6 of the IPSS questionnaire. Scores range from 0 (not at all) to 5 (frequent obstructive symptoms), thus the 4 questions of the obstructive score range from 0 to 20.

    Measured: Baseline, 54 weeks

  15. Change From Baseline in IPSS Quality of Life (QoL) Index at 54-Week Endpoint

    Assessment of quality of life (QOL) by urinary symptoms, with scores ranging from 0 (delighted) to 6 (terrible).

    Measured: Baseline, 54 weeks

  16. Change From Baseline in Overactive Bladder Symptom Score (OABSS) at 54-Week Endpoint

    The OABSS is a four-symptom questionnaire to assess overactive bladder (OAB) symptoms: daytime frequency, nighttime frequency, urgency, and urgency incontinence. Scores range from 0 - 15, with higher scores indicating more severe OAB symptoms.

    Measured: Baseline, 54 weeks

  17. Change From Baseline in Uroflowmetry Parameter: Peak Flow Rate (Qmax) at 54-Week Endpoint

    Uroflowmetry was assessed by Qmax, defined as the peak urine flow rate (measured in mL/second using a standard calibrated flowmeter).

    Measured: Baseline, 54 weeks

  18. Number of Participants With Adverse Events During 42 Weeks of Open-Label Treatment

    A listing of Adverse Events are reported in the Reported Adverse Event Section.

    Measured: End of 12 weeks of double-blind through 54 weeks

  19. Change From Baseline in Blood Pressure During at 54-Week Endpoint

    Measured: Baseline, 54 weeks

  20. Change From Baseline in Sitting Heart Rate at 54-Week Endpoint

    Measured: Baseline, 54-weeks

  21. Change From Baseline in Prostate Specific Antigen (PSA) at 54-Week Endpoint

    Measurement of nanograms of PSA per milliliter (ng/mL) of blood.

    Measured: Baseline, 54 weeks

  22. Change From Baseline in Postvoid Residual Volume (PVR) at 54-Week Endpoint

    Post residual volume (PVR) is measured by ultrasound at regular intervals.

    Measured: Baseline, 54 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Oct 2008 (estimated)
  2. Study startNov 2008
  3. Primary completionJun 2009
  4. Study completionApr 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
422 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00783094
Sponsor's protocol ID
12757
Other IDs
H6D-JE-LVIA
Status last verified
Mar 2011
First submitted
30 Oct 2008
Last updated
29 Mar 2011
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Tadalafil 2.5 mg and Tadalafil 5 mg in people with Benign Prostatic Hyperplasia, run by Eli Lilly and Company at 6 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Mar 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Jul 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in International Prostate Symptom Score (IPSS) Total Score at 12-Week Endpoint (time frame: Baseline, 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Mar 2011.

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