Last updated: 04/27/2021 06:20:06

Bioequivalence study between GSK3542503 hydrochlorothiazide + amiloride hydrochloride 50 mg: 5 mg tablets and reference product in healthy adult participants under fasting conditions

GSK study ID
205694
Clinicaltrials.gov ID
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Study complete
Study complete
Overview
Eligibility
Locations
Study documents
Results summary
Plain language summaries
Additional information

Trial overview

Official title: An open-label, randomized, single-dose, two-period cross-over study to evaluate bioequivalence of GSK3542503 hydrochlorothiazide + amiloride hydrochloride 50 mg: 5 mg fixed dose combination tablets versus reference product in healthy adult participants under fasting conditions
Trial description: The combination of the diuretics amiloride hydrochloride (HCl) and hydrochlorothiazide (HCTZ) (GSK3542503) is indicated for the treatment of hypertension, congestive heart failure and hepatic cirrhosis with ascites and edema. This first time in human (FTIH) study is aimed to determine whether the test product GSK3542503 is bioequivalent to the reference (ref) hydrochlorothiazide 50 milligram (mg)/amiloride hydrochlorothiazide 5 mg in healthy adult participants under fasting conditions based on pharmacokinetic (PK) endpoints. This is a phase I, open label, balanced, randomized, single dose, two-way crossover study, enroling approximately 42 healthy participants at a single center. Study participants will be randomized to one of two treatment sequences (A-B or B-A) in accordance with the randomization schedule. A single dose of one of the two treatments A (Test: GSK3542503, a hydrochlorothiazide 50 mg and amiloride hydrochloride 5 mg fixed dose combination) or B (Reference: Moduretic, a hydrochlorothiazide 50 mg and amiloride hydrochloride 5 mg fixed dose combination), will be administered on Day 1, in each treatment period. Each participant will participate in both treatment periods and receive a single dose of each treatment. The treatment periods will be separated by a washout period of at least 7 days and no more than 14 days. The total duration in the study for each participant is expected to be 5 to 7 weeks, from screening to his or her last visit. A maximum of 42 participants will be randomized such that at least 32 evaluable participants complete the study.
Primary purpose:
Treatment
Trial design:
Crossover Assignment
Masking:
None (Open Label)
Allocation:
Randomized
Primary outcomes:

Area under the curve (AUC) from time zero to the time of the last quantifiable concentration (AUC [0-t]) of hydrochlorothiazide and amiloride hydrochloride

Timeframe: Pre-dose, 0.33, 0.67, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10, 12,14, 16 hours post-dose on Day 1, 24 and 36 hours post dose on Day 2 and 48 hours post-dose on Day 3

Maximum observed concentration (Cmax) of hydrochlorothiazide and amiloride hydrochloride in plasma

Timeframe: Pre-dose, 0.33, 0.67, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10, 12,14, 16 hours post-dose on Day 1, 24 and 36 hours post dose on Day 2 and 48 hours post-dose on Day 3

Secondary outcomes:

AUC from time zero to infinity (AUC[0-inf]) of hydrochlorothiazide and amiloride hydrochloride in plasma

Timeframe: Pre-dose, 0.33, 0.67, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10, 12,14, 16 hours post-dose on Day 1, 24 and 36 hours post dose on Day 2 and 48 hours post-dose on Day 3

Time of occurrence of Cmax (Tmax) of hydrochlorothiazide and amiloride hydrochloride in plasma

Timeframe: Pre-dose, 0.33, 0.67, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10, 12,14, 16 hours post-dose on Day 1, 24 and 36 hours post dose on Day 2 and 48 hours post-dose on Day 3

Percentage of AUC(0-inf) obtained by extrapolation (percent AUCex) of hydrochlorothiazide and amiloride hydrochloride in plasma

Timeframe: Pre-dose, 0.33, 0.67, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10, 12,14, 16 hours post-dose on Day 1, 24 and 36 hours post dose on Day 2 and 48 hours post-dose on Day 3

Terminal phase half-life (T1/2) of hydrochlorothiazide and amiloride hydrochloride in plasma

Timeframe: Pre-dose, 0.33, 0.67, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10, 12,14, 16 hours post-dose on Day 1, 24 and 36 hours post dose on Day 2 and 48 hours post-dose on Day 3

Number of participants with adverse events (AEs) and serious AEs (SAEs) during treatment period

Timeframe: Up to 25 days

Alanine aminotransferase (ALT), alkaline phosphatase (alk.phosph.) and aspartate aminotransferase (AST) levels at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Blood urea nitrogen (BUN) levels at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Calcium, chloride, glucose, magnesium, potassium and sodium levels at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Creatinine, direct bilirubin and total bilirubin levels at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Total protein levels at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Systolic blood pressure (SBP) and Diastolic blood pressure (DBP) values at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Respiratory rate values at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Pulse rate values at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Body temperature values at indicated time points

Timeframe: Day -1 and Day 3 of each treatment period

Interventions:
  • Drug: GSK3542503 (HCTZ 50mg/Amiloride HCl 5mg tablets)
  • Drug: Moduretic (HCTZ 50mg/Amiloride HCl 5mg tablets)
  • Enrollment:
    42
    Primary completion date:
    2017-10-04
    Observational study model:
    Not applicable
    Time perspective:
    Not applicable
    Clinical publications:
    Not applicable
    Medical condition
    Hypertension
    Product
    GSK3542503, amiloride, hydrochlorothiazide
    Collaborators
    Not applicable
    Study date(s)
    March 2017 to April 2017
    Type
    Interventional
    Phase
    1

    Participation criteria

    Sex
    Female & Male
    Age
    18 - 65 years
    Accepts healthy volunteers
    Yes
    • Participants must be between18 and 65 years of age inclusive, at the time of signing the informed consent.
    • Healthy, non-smoker, as determined by the investigator or medically qualified designee based on a medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring.
    • History or presence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, or neurological disorders capable of significantly altering the absorption, metabolism, or elimination of drugs; constituting a risk when taking the study treatment; or interfering with the interpretation of data.
    • Abnormal renal function measured by creatinine clearance.

    Trial location(s)

    Location
    Status
    Contact us
    Contact us
    Location
    GSK Investigational Site
    Bloemfontein, South Africa, 9301
    Status
    Study Complete

    Study documents

    Scientific result summary
    Available language(s): English
    Protocol and statistical analysis plan
    Available language(s): English

    If you wish to request for full study report, please contact - [email protected]

    Results overview

    Results posted on ClinicalTrials.gov

    Recruitment status
    Study complete
    Actual primary completion date
    2017-10-04
    Actual study completion date
    2017-10-04

    Plain language summaries

    Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.

    Additional information about the trial

    Additional information
    Not applicable
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