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Embryo TransferPhase 1NCT02257359

Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Epelsiban in Healthy Female Volunteers

A Phase 1 study testing Epelsiban in people with Embryo Transfer, 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

Epelsiban is a potent and selective oxytocin receptor antagonist in development for enhanced implantation rates during in-vitro fertilization (IVF). This study a non-randomized, open label study designed to assess the safety, tolerability and pharmacokinetics of additional repeat doses of epelsiban in healthy females… Read more about this study

Who is it for?
Ages 18 to 55 years, women onlyHealthy volunteers can take part
Conditions the study is for
Embryo Transfer
What is being tested?
Epelsiban
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
18 Dec 2014to 29 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 55 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Females between 18 and 55 years of age inclusive, at the time of consent.
  • Healthy as determined by the Investigator or medically qualified designee based on a medical evaluation including medical history, review of medications previously used, physical examination, laboratory tests and ECG.
  • Body mass index (BMI) within the range 18-35 kilogram per square meter( kg/m^2) (inclusive).
  • Female subject is eligible to participate if she is not pregnant (as confirmed by a negative serum human chorionic gonadotropin [hCG] test), not lactating, and at least one of the following conditions applies: Non-reproductive potential or postmenopausal.

Who cannot join

  • Alanine Transferase (ALT) and bilirubin >1.5x upper limit of normal(ULN) (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35%).
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • Corrected QT (QTc) > 450 milliseconds (msec). - History of regular alcohol consumption within 3 months of dosing on Day 1 defined as: an average weekly intake of >7 drinks for females. One drink is equivalent to 12 gram of alcohol: 12 ounces (360 milliliter [mL]) of beer, 5 ounces (150 mL) of wine or 1.5 ounces (45 mL) of 80 proof distilled spirits.
  • Urinary cotinine levels indicative of smoking or history or regular use of tobacco- or nicotine-containing products within 6 months prior to screening.
  • History of sensitivity to any of the study medications, or components thereof or a history of drug or other allergy that, in the opinion of the Investigator or Medical Monitor, contraindicates their participation.
  • Presence of hepatitis B surface antigen (HBsAg), positive hepatitis C antibody test result at screening or within 3 months prior to first dose of Study Treatment. For potent immunosuppressive agents, subjects with presence of hepatitis B core antibody (HBcAb) should also be excluded.
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  • A positive pre-study drug/alcohol screen.
  • A positive test for human immunodeficiency virus antibody.
  • Where participation in the study would result in donation of blood or blood products in excess of 500 mL within 3 months.
  • The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the first dosing day in the current study: 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.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • GSK Investigational Site

    Overland Park, Kansas, 66211

Other trials in United States

About this study

Official title: A Phase 1, Open Label, Ascending Cohort, Dose Escalation Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Epelsiban and Its Metabolite in Healthy Female Volunteers Following Administration of Epelsiban

Epelsiban is a potent and selective oxytocin receptor antagonist in development for enhanced implantation rates during in-vitro fertilization (IVF). This study a non-randomized, open label study designed to assess the safety, tolerability and pharmacokinetics of additional repeat doses of epelsiban in healthy females, and will be the first dosing experience of greater than 200 milligram (mg) as a single dose with this compound. Data from this study will inform the selection of doses of epelsiban to be used in future clinical studies. This study will be composed of 3 periods: Screening, Treatment, and Follow-up. The total duration that a subject involved in the study will be up to 6 weeks. At least 2 cohorts of subjects will be enrolled in this study and cohorts will be conducted sequentially. Additional cohorts will be enrolled if determined necessary. A sufficient number of subjects will be screened for the study to obtain approximately 6 evaluable subjects per cohort.

Conditions
Embryo Transfer
Being tested
Epelsiban
Keywords
Epelsiban, Healthy Female Volunteers, Safety, Tolerability, Oxytocin, Pharmacokinetics

What participants receive

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

  • EpelsibanDrug

    Epelsiban will be supplied as a 25 mg white to off-white round direct compression oral tablet.

Study groups in NCT02257359
Study groupRoleWhat they receive
Epelsiban Cohort 1ExperimentalSubjects will receive 300 mg of epelsiban administered orally twice (every 12 hr) on Day 1 (total daily dose of 600 mg)
Receives: Drug: Epelsiban
Epelsiban Cohort 2ExperimentalEpelsiban dose for Cohort 2 will be determined based on data from Cohort 1, but will not exceed a total daily dose of 900 mg, administered orally in divided doses (450 mg every 12 hrs or 300 mg every 8 hrs).
Receives: Drug: Epelsiban
Additional Cohorts TBD (to be decided)ExperimentalSubjects will be enrolled if determined necessary, based on data collected in Epelsiban Cohort 1 and Cohort 2
Receives: Drug: Epelsiban

What is being measured

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

  1. Composite pharmacokinetic parameters of epelsiban and its metabolite (GSK2395448)

    Pharmacokinetic parameters including area under the plasma drug (and metabolite) concentration versus time curve (AUC[0-t], AUC[0- infinity], AUC[0-tau]), maximum observed concentration (Cmax), time to maximum observed plasma drug (and metabolite) concentration (tmax), and terminal half-life (t1/2), as data permit, will be analyzed. Blood samples for pharmacokinetic analysis will be collected on Day 1 (Morning pre-dose and 0.5hour(hr), 1 hr, 4 hr, 6hr, 8 hr, 12 hr post morning dose; evening pre-dose and 12.5 hr, 13 hr post morning dose) and Day 2 (16 hr and 24 hr post Day 1 morning dose).

    Measured: Up to Day 2

  2. Number of subjects with 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. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product.

    Measured: Up to Day 12

  3. Assessment of clinical observations

    Measured: Up to Day 12

  4. Assessment of hematology parameters

    Hematology parameters include complete blood count with red blood cell indices, white blood cell count differential, hemoglobin, hematocrit and platelet count.

    Measured: Up to Day 12

  5. Assessment of clinical chemistry parameters

    Clinical chemistry parameters includes glucose, blood urea, creatinine, sodium, potassium, calcium, total protein, albumin, total bilirubin, direct bilirubin, alkaline phosphatase, alanine aminotransferase and aspartate aminotransferase.

    Measured: Up to Day 12

  6. Assessment of urinalysis by dipstick

    Urinalysis includes specific gravity, pH, glucose, protein, blood and ketones by dipstick. If blood or protein is abnormal microscopic examination will be done.

    Measured: Up to Day 12

  7. Assessment of vital sign measurements

    Vital sign measurements will include temperature, systolic and diastolic blood pressure and heart rate.

    Measured: Up to Day 12

  8. Assessment of 12-lead electrocardiogram (ECG)

    Triplicate 12-lead ECGs will be obtained at each timepoint during the study using an ECG machine that automatically calculates the heart rate and measures PR, QRS, QT, and QTc intervals.

    Measured: Up to Day 12

  9. Assessment of physical examination findings

    A physical examination will include, at a minimum, assessment of the cardiovascular, respiratory, gastrointestinal and neurological systems. Height and weight will also be measured

    Measured: Up to Day 12

Timeline

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

  1. First posted6 Oct 2014 (estimated)
  2. Study start18 Dec 2014
  3. Primary completion29 Jan 2015
  4. Study completion29 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
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02257359
Sponsor's protocol ID
201691
Status last verified
Sep 2018
First submitted
2 Oct 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.

Publications

  • Mahar KM, Enslin MB, Gress A, Amrine-Madsen H, Cooper M. Single- and Multiple-Day Dosing Studies to Investigate High-Dose Pharmacokinetics of Epelsiban and Its Metabolite, GSK2395448, in Healthy Female Volunteers. Clin Pharmacol Drug Dev. 2018 Jan;7(1):33-43. doi: 10.1002/cpdd.363. Epub 2017 May 26.

    PubMed 28556598

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Epelsiban in people with Embryo Transfer, 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 4 inclusion and 11 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 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?

Composite pharmacokinetic parameters of epelsiban and its metabolite (GSK2395448) (time frame: Up to Day 2). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02257359, which also lists 1 linked publication.

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.

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