AzTrials
AzTrials

Urologic DiseasesPhase 1NCT02058576

Bioequivalence Study of the Second Generation Dutasteride and Tamsulosin HCl Combination Capsule in Fed State

A Phase 1 study testing Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg and Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsule in people with Urologic Diseases, run by GlaxoSmithKline at 1 site in United Kingdom.

Completed

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

Official record
Search all trials

Trial summary

The purpose of this study is to assess the bioequivalence of the second generation dutasteride and tamsulosin hydrochloride (HCL) combination capsule versus currently available commercial combination of dutasteride 0.5 milligrams (mg) and tamsulosin HCL 0.4 mg capsule in healthy adult male subjects. Read more about this study

Who is it for?
Ages 18 to 50 years, men onlyHealthy volunteers can take part
Conditions the study is for
Urologic Diseases
What is being tested?
Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg and Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsule
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
77 participants
Where
1 siteUnited Kingdom
Study dates
11 Feb 2014to 2 Jan 2015
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 18 to 50 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Males who are 18 to 50 years of age, inclusive.
  • Weight range 55 to 95 kg (inclusive) and body mass index (BMI) 18 to 30 kilogram/meter^2 (kg/m^2) (inclusive).
  • Healthy subjects defined as individuals who are free from clinically significant illness or disease as determined by the investigator based on their medical history, physical examination, vital signs, laboratory studies, and electrocardiograms (ECGs).
  • Single QTc <450 millisecond (msec) or QTc <480 msec in subjects with Bundle Branch Block, no clinically relevant abnormal finding on the screening ECG.
  • Serum creatinine <1.5 x upper limit of normal (ULN) at screening.
  • CYP2D6 Extensive Metabolizers only at screening
Show all 10Show fewer
  • Willing and able to give written informed consent
  • Able to swallow and retain oral medication.
  • Male subjects with female partners of child-bearing potential must agree to use 1 of the contraception methods.
  • Aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatise (ALP), and bilirubin <=1.5 x ULN (isolated bilirubin >1.5 x ULN 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, which in the opinion of the investigator could be exacerbated by tamsulosin and result in putting the subject at risk of injury.
  • History of any serious and/or unstable pre-existing medical, psychiatric disorder, or other conditions that could interfere with a subject's safety, or interfere with the subject's ability to follow indications or study procedures, or the interpretation of study results or obtaining informed consent or compliance to study procedures in the opinion of the Investigator or GSK Medical Monitor.
  • History of myocardial infarction, coronary bypass surgery, unstable angina, cardiac arrhythmias, clinically evident congestive heart failure, or cerebrovascular accident prior to Screening visit; or diabetes or peptic ulcer disease which is uncontrolled by medical management.
  • History of breast cancer or clinical breast examination finding suggestive of malignancy, malignancy within the past 5 years, except for basal cell carcinoma of the skin. Subjects with a prior malignancy who have had no evidence of disease for at least the past 5 years are eligible.
  • Prior medical history or evidence of prostate cancer. Subjects with suspicious ultrasound or DRE who have had a negative biopsy within the preceding 6 months and stable prostate specific antigen (PSA) are eligible for the study.
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
Show all 17Show fewer
  • A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening.
  • Positive human immunodeficiency virus (HIV) test at screening.
  • Use of prescription or non-prescription drugs.
  • Strong CYP3A4 inhibitors (e.g. ketoconazole) and/or strong CYP2D6 inhibitors (e.g. paroxetine) usage throughout the study.
  • History of sensitivity to heparin or heparin-induced thrombocytopenia.
  • History of regular alcohol consumption exceeding 21 drinks/week for men (1 unit is equivalent to 8 gram of alcohol: a half-pint (equivalent to 240 millilitre [mL]) of beer, 1 glass (equivalent to 125 mL) of wine or 1 (equivalent to 25 mL) measure of spirits) within 6 months of screening. Subjects must be able and willing to abstain from beverages and foods containing alcohol 24 hours prior to the first dose of study medication and until the completion of the final PK sample during each period.
  • A positive urine drug or alcohol screen result at screening and at Day -1. A minimum list of drugs that will be screened for include amphetamines, barbiturates, cocaine, opiates, cannabinoids, and benzodiazepines.
  • Subjects must be able and willing to stop using of any tobacco or nicotine containing products 24 hours prior to each dose and for the duration of confinement. At the discretion of the Investigator, light smokers (smoking <=10 cigarettes a day) would be considered for the study inclusion.
  • The subject has received an investigational product or participated in any other research trial within 6 months or 5 half-lives, or twice the duration of the biological effect of any drug (whichever is longer) prior to the first dose of current study medication or anytime during the study period, exposure to more than 4 new chemical entities within 12 months prior to the first dosing day.
  • Previous donation of blood or blood products in excess of 500 mL within a 90 day prior to the first dose of investigational products and the subject agrees not to donate blood during this study.
  • History or presence of allergy, intolerance, contraindication or sensitivity to alpha blockers (e.g., tamsulosin), or 5 alpha reductase inhibitors (e.g., dutasteride) or drugs of these therapeutic classes, soya or peanuts, or any ingredients of commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg, or a history of drug or other allergy (including true sulfonamide allergy) that, in the opinion of the investigator, contraindicates your participation in the study.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • GSK Investigational Site

    Belfast, BT9 6AD

Other trials in United Kingdom

About this study

Official title: A Single-Dose, Randomised, Open-Label, Two-Period Crossover Study to Determine the Bioequivalence of the Second Generation Dutasteride and Tamsulosin HCl Combination Capsule in the Fed State in Healthy Adult Male Subjects

The purpose of this study is to assess the bioequivalence of the second generation dutasteride and tamsulosin hydrochloride (HCL) combination capsule versus currently available commercial combination of dutasteride 0.5 milligrams (mg) and tamsulosin HCL 0.4 mg capsule in healthy adult male subjects. Subjects in this study will receive either a single oral dose of the second generation dutasteride 0.5 mg and tamsulosin 0.4 mg combination capsule or a single dose of commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg capsule followed by a 28-day washout period both in fed state. The study will enroll approximately 92 healthy adult male subjects in order to complete approximately 76 evaluable subjects. The total duration of a subject's involvement in this study is anticipated to be approximately 12 weeks.

Being tested
Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg, Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsule
Keywords
combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg, Tamsulosin, healthy subject, bioequivalence, GI198745, dutasteride, tamsulosin hydrochloride
Medical subject headings
Urologic Diseases

What participants receive

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

  • Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mgDrug

    Commercially available, orange and brown, hard shell capsule, administered orally as a single dose on Day 1 under fed condition.

  • Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsuleDrug

    Orange and brown, hard shell capsule, administered orally, as a single-dose on Day 1 under fed condition

Study groups in NCT02058576
Study groupRoleWhat they receive
Sequence ABExperimentalSubjects will receive Treatment A (commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg) in period 1 and Treatment B (combination of second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination) in period 2 orally once daily under fed condition.
Receives: Drug: Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg; Drug: Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsule
Sequence BAExperimentalSubjects will be randomized to receive Treatment B (combination of second generation dutasteride 0.5 mg and tamsulosin HCl 0.4 mg combination) in period 1 and Treatment A (commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg) in period 2 orally once daily under fed condition.
Receives: Drug: Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg; Drug: Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsule

What is being measured

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

  1. Pharmacokinetic profile for second generation dutasteride when co-administered with tamsulosin HCL relative to the currently available commercial combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg in the fed state to investigate bioequivalence

    PK parameters include: area under the concentration-time curve from time zero to last time of quantifiable concentration within a subject (AUC [0-t]), and maximum observed concentration (Cmax) as data permit.

    Measured: PK blood samples will be collected at pre-dose, 0, 0.25, 0.50, 0.75, 1, 2, 3, 4, 5, 6, 6.5, 7, 7.5, 8, 10, 12, 16, 24, 48, 72 hour post dose in each period.

  2. Composite of PK parameters for tamsulosin HCL when it is co-adminstered with second generation dutasteride relative to the currently available commercial dutasteride 0.5 mg and tamsulosin HCL 0.4 mg in the fed state to investigate bioequivalence

    PK parameters include: AUC[0-t]), area under the concentration-time curve from time zero extrapolated to infinite time (AUC[0-infinity]) [defaulting to AUC(0-t)

    Measured: PK blood samples will be collected at pre-dose, 0, 0.25, 0.50, 0.75, 1, 2, 3, 4, 5, 6, 6.5, 7, 7.5, 8, 10, 12, 16, 24, 48, 72 hour post dose in each period.

Secondary outcomes (5)
  1. PK profile of dutasteride

    PK parameters include: time of occurrence of Cmax (tmax), and negative slope of the terminal phase (lambda) as data permit.

    Measured: PK blood samples will be collected at pre-dose, 0, 0.25, 0.50, 0.75, 1, 2, 3, 4, 5, 6, 6.5, 7, 7.5, 8, 10, 12, 16, 24, 48, 72 hour post dose in each period.

  2. PK profile of tamsulosin HCL

    PK parameters include: tmax, lambda, and half life (t1/2)

    Measured: PK blood samples will be collected at pre-dose, 0, 0.25, 0.50, 0.75, 1, 2, 3, 4, 5, 6, 6.5, 7, 7.5, 8, 10, 12, 16, 24, 48, 72 hour post dose in each period.

  3. Clinically significant changes in Vital signs measurements to assess safety and tolerability

    Vital signs will include blood pressure and pulse rate measurements

    Measured: Baseline (screening) and up to 33 days.

  4. Incidence of adverse events (AEs)

    An AE is any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

    Measured: Up to 48 days

  5. Clinical laboratory parameter assessment as a measure of safety and tolerability

    Laboratory parameters include: hematology, clinical chemistry and urinalysis.

    Measured: Up to 33 days

Timeline

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

  1. First posted10 Feb 2014 (estimated)
  2. Study start11 Feb 2014
  3. Primary completion2 Jan 2015
  4. Study completion2 Jan 2015

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
Other
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
77 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02058576
Sponsor's protocol ID
116108
Status last verified
Sep 2018
First submitted
6 Feb 2014
Last updated
13 Sep 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: IPD for this study will be made available via the Clinical Study Data Request site.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Commercially available combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg and Second generation dutasteride 0.5 mg and tamsulosin HCL 0.4 mg combination capsule in people with Urologic Diseases, run by GlaxoSmithKline at 1 site in United Kingdom.

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 10 inclusion and 17 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 13 Sep 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 Kingdom. 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?

Pharmacokinetic profile for second generation dutasteride when co-administered with tamsulosin HCL relative to the currently available commercial combination of dutasteride 0.5 mg and tamsulosin HCL 0.4 mg in the fed state to investigate bioequivalence (time frame: PK blood samples will be collected at pre-dose, 0, 0.25, 0.50, 0.75, 1, 2, 3, 4, 5, 6, 6.5, 7, 7.5, 8, 10, 12, 16, 24, 48, 72 hour post dose in each period.). The study lists 2 primary outcomes in all. 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 13 Sep 2018.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in