Last updated: 11/07/2018 11:03:28

A Study to Evaluate Pharmacokinetics, Pharmacodynamics and Tissue Concentrations of Epelsiban

GSK study ID
116828
Clinicaltrials.gov ID
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Other
Other
Overview
Eligibility
Locations
Study documents
Results summary
Plain language summaries
Additional information

Trial overview

Official title: Study IVF116828:A Multi-Cohort Phase I Study to Investigate the Pharmacokinetics, Pharmacodynamics and Tissue Concentrations of Epelsiban (GSK557296) in Healthy Female Volunteers During Control and Challenge States With and Without Oxytocin
Trial description: This multi-cohort phase I study is designed to assess the pharmacokinetics (PK) and pharmacodynamics (PD) of oxytocin and to evaluate epelsiban (GSK557296) potential to reduce subendometrial contractractility induced by oxytocin in healthy female subjects. Additionally tissues concentrations of epelsiban will be determined from endometrial tissue biopsies. Data from this study will inform the identification of the doses of epelsiban to be used in future in-vitro fertilization (IVF) clinical studies. Expected number of subjects to be randomized are: Cohort 1- 10 subjects, Cohort 2a- 10 subjects for each epelsiban arm 25 milligrams (mg), 200mg, 5 for placebo, Cohort 2b- 10 subjects per arm with dose to be determined, cohort 3- 6 subjects. Cohorts 1 and 2 will be double blind (sponsor unblinded) placebo controlled cohorts. Cohort 3 will be an open label cohort, cohort 4 will be a double blind (sponsor unblinded) placebo controlled cohort.
Primary purpose:
Treatment
Trial design:
Single Group Assignment
Masking:
Double (Participant, Investigator)
Allocation:
Randomized
Primary outcomes:

The effect of the infused oxytocin dose on the time course of the frequency of endometrial contractions in Cohort 1 during the periovulatory phase

Timeframe: Up to Day 3

Frequency of endometrial contractions in Cohorts 2A, 2B and 2C during the periovulatory phase and 3-5 days post ovulation.

Timeframe: Up to Day 2

Reduction in the frequency of subendometrial contractions in Cohorts 2 A, B and C, all during the periovulatory phase.

Timeframe: Up to Day 2

The duration of the reduction in subendometrial contractions in Cohorts 2 A, B and C, all during the periovulatory phase

Timeframe: Up to Day 2

Plasma concentrations of epelsiban or metabolite and the reduction of subendometrial contraction frequency in Cohorts 2 A, B and C, all during the periovulatory phase.

Timeframe: PK samples will be collected at 3, 3.25, 3.5, 4, 6.5, 11, 15, 27, 31 and 39 hours post dose in cohort 2.

Secondary outcomes:

Frequency of endometrial and subendometrial contractility in Cohort 2.

Timeframe: Up to Day 3

Frequency of subendometrial contractility in Cohort 3

Timeframe: Up to Day 2

Number of subjects with adverse events in Cohort 1

Timeframe: 18 days

Number of subjects with adverse events (AEs) in Cohort 2

Timeframe: 17 days

Number of subjects with adverse events in Cohort 3

Timeframe: 16 days

Change from Baseline in laboratory parameters in Cohort 1

Timeframe: Baseline (screening) and upto 21 days

Change from Baseline in laboratory parameters in Cohort 2

Timeframe: Baseline (screening) and upto 20 days

Change from Baseline in laboratory parameters Cohort 3

Timeframe: Baseline (screening) and upto 19 days

Change from Baseline in vital signs in Cohort 1

Timeframe: Baseline (screening) and upto 21 days

Change from Baseline in vital signs in Cohort 2

Timeframe: Baseline (screening) and upto 20 days

Change from Baseline in vital signs in Cohort 3

Timeframe: Baseline (screening) and upto 19 days

Change from Baseline in electrocardiogram (ECG) parameters in Cohort 1

Timeframe: Baseline (screening) and upto 21 days

Change from Baseline in ECG parameters in Cohort 2

Timeframe: Baseline (screening) and upto 20 days

Change from Baseline in ECG parameters in Cohort 3

Timeframe: Baseline (screening) and upto 19 days

Composite of PK parameters following epelsiban dosing

Timeframe: PK samples will be collected at 3, 3.25, 3.5, 4, 6.5, 11, 15, 27, 31 and 39 hours post dose in cohort 2.

Interventions:
  • Drug: Epelsiban
  • Drug: Placebo
  • Drug: Oxytocin
  • Drug: Ortho-Cylcen (21)® tablet
  • Enrollment:
    33
    Primary completion date:
    Not applicable
    Observational study model:
    Not applicable
    Time perspective:
    Not applicable
    Clinical publications:
    Deborah Wong, Tal Otiker, Kelly M. Mahar, Duncan Richards, Sarah Siederer. Evaluation of an translational oxytocin challenge paradigm to assess contractility in the non-pregnant uterus. British Pharmacological Society - Pharmacology 2016. 2016;
    Medical condition
    Embryo Transfer
    Product
    epelsiban
    Collaborators
    Not applicable
    Study date(s)
    August 2014 to February 2016
    Type
    Interventional
    Phase
    1

    Participation criteria

    Sex
    Female
    Age
    18 - 35 years
    Accepts healthy volunteers
    Yes
    • For ultrasound training cohort
    • Female volunteers of childbearing potential; with a negative pregnancy test as determined by human chorionic gonadotropin (hCG) testing at screening and prior to study initiation.
    • For Training Cohort
    • Ultrasonographic evidence of uterine anomalies, including but not limited to intramural or submucosal leiomyomas (fibroids) cysts, endometrial polyps, American Society for Reproductive Medicine (ASRM) Class I-VI uterine malformations or intrauterine fluid collections.

    Trial location(s)

    Location
    Status
    Contact us
    Contact us
    Location
    GSK Investigational Site
    Glendale, California, United States, 91206
    Status
    Study Complete
    Location
    GSK Investigational Site
    Baltimore, Maryland, United States, 21225
    Status
    Study Complete

    Study documents

    Clinical study report
    Available language(s): English
    Scientific result summary
    Available language(s): English
    Protocol
    Available language(s): English

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

    Results overview

    Refer to study documents

    Recruitment status
    Other
    Actual primary completion date
    Not applicable
    Actual study completion date
    2016-07-02

    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

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    Additional information
    Results for study 116828 can be found on the GSK Clinical Study Register.
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