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Completed

NCT Number: NCT05095077

Effects of Single Dose Tadalafil on Urethral and Anal Closure Function

The purpose of the trial is to assess the effect of tadalafil compared to placebo (inactive comparator) on the urethral - and anal pressure and on urine flow in healthy females. Further, the purpose of the trial is to evaluate the potential for going forward with studies of tadalafil in patients suffering from urine or fecal incontinence.

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Key information

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Signed informed consent form
  • Normal weight (Body weight 50 kg or more, Body Mass Index 18-5-30 kg/m2)
  • Sexual abstinence or use of safe contraceptive methods i.e. intrauterine devices, hormonal contraception (oral contraceptive pills, implants, transdermal patches, vaginal rings or long acting injections), or surgically sterilized partner throughout the course of the study and until six days after the study has ended for the subject. Women who are postmenopausal (defined as no menstrual periods for 12 months or more prior to enrolment) can be included without use of contraceptive methods.
  • Presentation of a negative urine human chorionic gonadotropin (hCG) urine pregnancy test prior to dosing (on both study days)

Exclusion criteria

  • History of clinically significant urinary incontinence.
  • Current acute or chronic condition, unless considered clinically irrelevant and stable by the investigator.
  • Average systolic blood pressure <100 mmHg or >140 mmHg and/or average diastolic blood pressure <60 mmHg or >90 mmHg (average of three measurements performed at screening).
  • Average pulse < 40 or > 100 beats/minute (average of three measurements performed at screening).
  • Pregnancy within 6 months before screening and throughout the study period.
  • Breastfeeding throughout the study period and 6 days after study day 2.
  • Any systemic drug use within 2 weeks before first study drug administration (prescription drugs, over-the-counter drugs, herbal drugs and illicit drugs), except for occasional use of paracetamol (up to 4 g/day), hormonal contraceptives and hormone replacement therapy.
  • Smoking or other regular use of any form of nicotine product during the study period and the previous 3 months.
  • Alcohol consume 24 hours prior to dosing.
  • Current or prior participation (within 3 months before screening) in other clinical trials that might affect the results of this study (judged by the investigator).

Treatment and study plan

Tadalafil 40 mg

Drug

Single dose on study day 1/2

Placebo

Drug

Identical to active IMP

Primary outcomes

  1. Placebo-corrected change in opening urethral pressure after single dose tadalafil

    Time frame: 2 hours post-dose

    Difference in average urethral opening pressure (UOP) after administration of 40 mg tadalafil (UOP-tadalafil) compared to UOP after placebo (during relaxation).

Secondary outcomes

  1. Difference in average anal opening pressure (AOP) after administration of 40 mg tadalafil compared to AOP after placebo (during relaxation).

    Time frame: 2-hours post-dose

    Difference in average anal opening pressure (AOP) after administration of 40 mg tadalafil compared to AOP after placebo (during relaxation).

  2. Difference in average UOP-tadalafil and average UOP-placebo during squeezing.

    Time frame: 2-hours post-dose

  3. Difference in average AOP-tadalafil and average AOP-placebo during squeezing.

    Time frame: 2-hours post-dose

  4. Elastance (opening/closing) during relaxation and squeezing (tadalafil compared to placebo).

    Time frame: 2-hours post-dose

  5. Difference in maximum urine flow rate (Qmax) and average urine flow rate (Qave) after tadalafil and placebo administration, respectively.

    Time frame: 2-hours post-dose

Sponsors and collaborators

Lead sponsor

University Hospital Bispebjerg and Frederiksberg

Other

Registry information

Official study title

Effects of Single Dose Tadalafil on Urethral and Anal Closure Function and on Urinary Flow in Healthy Females: A Randomised, Controlled, Double-blinded, Two-period Cross-over Study

Important dates

Study start
2021
Primary completion
2021
Study completion
2022
First posted
Oct 27, 2021
Registry last updated
Apr 6, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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