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Prostatic HyperplasiaPhase 1ARI115148NCT01577693

Study to Compare the Bioavailability of Dutasteride Novel Formulation Form to the Soft Gel Capsule Form in Healthy Male Subjects

A Phase 1 study testing dutasteride in people with Prostatic Hyperplasia, run by GlaxoSmithKline at 1 site in United States.

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

The purpose of this study is to determine the bioavailability of 0.5mg dutasteride novel formulation compared to the currently marketed 0.5mg dutasteride soft gel capsule in fasted healthy male subjects. Read more about this study

Who is it for?
Ages 20 to 45 years, men onlyHealthy volunteers can take part
Conditions the study is for
Prostatic Hyperplasia
What is being tested?
dutasteride
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
35 participants
Where
1 siteUnited States
Study dates
12 May 2011to 31 Aug 2011
Phase
Phase 1
Are there results?
None posted in the registry

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 20 to 45 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy as determined by a responsible and experienced physician.
  • Males between 20 and 45 years of age inclusive, at the time of signing the informed consent form.
  • Male subjects with female partners of child-bearing potential must agree to use one of the contraception.
  • Body mass index within the range 18-30 kg/m2 (inclusive); weight range 55-95 kg (inclusive).
  • Capable of giving written informed consent.
  • Single QTcB < 450 msec.
  • Aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase, and bilirubin less than or equal to 1.5xULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35%).

Who cannot join

  • History of postural hypotension, dizziness, poor hydration, vertigo, vaso-vagal reactions or any other signs and symptoms of orthostasis.
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening
  • A positive test for human immunodeficiency virus (HIV) antibody.
  • Subject is mentally or legally incapacitated.
  • Use of prescription or non-prescription drugs, including vitamins, herbal and dietary supplements.
Show all 16Show fewer
  • History of sensitivity to dutasteride, components thereof or drugs of this class or a history of drug or other allergy.
  • History of sensitivity to heparin or heparin-induced thrombocytopenia
  • The subject has participated in a clinical trial for 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer).
  • Exposure to more than four new chemical entities within 12 months prior to the first dosing day.
  • A positive pre-study drug/alcohol screen.
  • History of regular alcohol consumption.
  • Consumption of red wine, grapefruit juice, grapefruit and related hybrids, and jufen grapes.
  • The subject has donated blood or blood products in excess of 500 mL within a 56 day period.
  • Urinary cotinine levels indicative of smoking or history or regular use of tobacco- or nicotine-containing products within 6 months.
  • Unwillingness or inability to follow the procedures outlined in the protocol.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • GSK Investigational Site

    Austin, Texas, 78744

Other trials in United States

About this study

Official title: An Open-label, Single Dose, Randomized, Two-period Crossover Study to Investigate the Bioavailability of a Novel Dosage Form of Dutasteride in Healthy Male Subjects

The purpose of this study is to determine the bioavailability of 0.5mg dutasteride novel formulation compared to the currently marketed 0.5mg dutasteride soft gel capsule in fasted healthy male subjects.

Read the detailed description

The purpose of this study is to determine the bioavailability of 0.5mg dutasteride in a novel formulation compared to the currently marketed 0.5mg dutasteride soft gel capsule in fasted healthy male subjects. This will be an open-label, single dose, randomized, two-period crossover study in healthy male subjects. Subjects will receive a single oral dose 0.5mg novel dutasteride formulation and a single oral dose 0.5mg dutasteride soft gel capsule in a fasted state. Each dose of the study medication will be separated by a 28-day washout period. Blood samples for pharmacokinetic analysis will be taken at regular intervals after dosing. Safety will be assessed by measurement of blood pressure, heart rate, laboratory data, and review of adverse events. The study will enrol approximately 35 healthy male subjects to ensure that 30 subjects complete the study. The study will be conducted in the USA.

Being tested
dutasteride
Keywords
dutasteride, cross over study, bioavailability
Medical subject headings
Prostatic Hyperplasia

What participants receive

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

  • dutasterideDrug

    novel dutasteride

  • dutasterideDrug

    dutasteride soft gel capsule

Study groups in NCT01577693
Study groupRoleWhat they receive
0.5 mg novel dose form (test)Experimental0.5 mg novel dose form (test)
Receives: Drug: dutasteride
0.5 mg Soft Gel CapsuleOther0.5 mg Soft Gel Capsule (reference)
Receives: Drug: dutasteride

What is being measured

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

  1. Bioavailability

    To assess the dutasteride relative bioavailability of the of 0.5 mg novel formulation compared with the currently marketed 0.5 mg soft gelatin capsule.

    Measured: Change from Day 1 (session 1) compared to Day 29 (session 2), predose, .25, .5, .75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72

Secondary outcomes (1)
  1. Safety

    Changes in blood pressure and pulse rates, review of number of subjects with adverse events, and changes in clinical laboratory data.

    Measured: Changes from screening to 3 months

Timeline

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

  1. First posted16 Apr 2012 (estimated)
  2. Study start12 May 2011
  3. Primary completion31 Aug 2011
  4. Study completion31 Aug 2011

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01577693
Sponsor's protocol ID
115148
Acronym
ARI115148
Status last verified
Jun 2018
First submitted
11 Aug 2011
Last updated
19 Jun 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing dutasteride in people with Prostatic Hyperplasia, run by GlaxoSmithKline at 1 site in United States.

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 7 inclusion and 16 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 19 Jun 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Bioavailability (time frame: Change from Day 1 (session 1) compared to Day 29 (session 2), predose, .25, .5, .75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72). 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 19 Jun 2018.

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