Recent Updates
Recently added Catalysts

Epelsiban

Phase 1

Embryo Transfer | Small molecule | Other |GSK plc|Last Updated: Sep 13, 2018

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials2
Total Enrollment43

FDA Designations

No designations recorded

Clinical trial landscape

Epelsiban · 2 trials · 1 indication

Phase 1 2
NCT02703181Dose Escalation Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of Epelsiban Administered in Repeat Doses in Healthy Women VolunteersEmbryo Transfer
COMPLETED31 Analytics
NCT02257359Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Epelsiban in Healthy Female VolunteersEmbryo Transfer
COMPLETED12 Analytics
PHASE1COMPLETED
Dose Escalation Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of Epelsiban Administered in Repeat Doses in Healthy Women Volunteers
Embryo TransferUnlock trial analytics
PHASE1COMPLETED
Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Epelsiban in Healthy Female Volunteers
Embryo TransferUnlock trial analytics

Study Endpoints

Primary Endpoints

Area under the concentration versus time from time zero to infinite time (AUC[0 to infinity]) for epelsiban and GSK2395448
Up to Day 15 (Day 1, 7 and 14)

Blood samples were collected for Cohort 1 and 2 on Days 1, 7, and 14 at Pre-dose ante meridiem (AM), Pre Dose post meridiem (PM), Pre- Dose PM2 (second PM dose \[16h\]), 0.5, 1, 2, 6, 8.5, 10, 14, 16.5, 17 and 24 hours post dose. Blood samples were collected for Cohort 3 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, 0.5, 1, 4, 6, 8, 12.5, 13, 16 and 24 hours post dose.

Area under the concentration versus time from time zero to last time point with measurable concentration (AUC [0-t]) for epelsiban and GSK2395448
Up to Day 15 (Day 1, 7 and 14)

Blood samples were collected for Cohort 1 and 2 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, Pre- Dose PM2 (second PM dose \[16h\]), 0.5, 1, 2, 6, 8.5, 10, 14, 16.5, 17 and 24 hours post dose. Blood samples were collected for Cohort 3 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, 0.5, 1, 4, 6, 8, 12.5, 13, 16 and 24 hours post dose.

Area under the concentration-time curve over the dosing interval (AUC [0-tau]) for epelsiban and GSK2395448
Up to Day 15 (Day 1, 7 and 14)

Blood samples were collected for Cohort 1 and 2 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, Pre- Dose PM2 (second PM dose \[16h\]), 0.5, 1, 2, 6, 8.5, 10, 14, 16.5, 17 and 24 hours post dose. Blood samples were collected for Cohort 3 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, 0.5, 1, 4, 6, 8, 12.5, 13, 16 and 24 hours post dose.

Maximum observed concentration (Cmax) for epelsiban and GSK2395448
Up to Day 15 (Day 1, 7 and 14)

Blood samples were collected for Cohort 1 and 2 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, Pre- Dose PM2 (second PM dose \[16h\]), 0.5, 1, 2, 6, 8.5, 10, 14, 16.5, 17 and 24 hours post dose. Blood samples were collected for Cohort 3 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, 0.5, 1, 4, 6, 8, 12.5, 13, 16 and 24 hours post dose.

Time of occurrence of Cmax (tmax) for epelsiban and GSK2395448
Up to Day 15 (Day 1, 7 and 14)

Blood samples were collected for Cohort 1 and 2 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, Pre- Dose PM2 (second PM dose \[16h\]), 0.5, 1, 2, 6, 8.5, 10, 14, 16.5, 17 and 24 hours post dose. Blood samples were collected for Cohort 3 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, 0.5, 1, 4, 6, 8, 12.5, 13, 16 and 24 hours post dose.

Terminal phase half-life (t1/2) for epelsiban and GSK2395448
Up to Day 15 (Day 1, 7 and 14)

Blood samples were collected for Cohort 1 and 2 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, Pre- Dose PM2 (second PM dose \[16h\]), 0.5, 1, 2, 6, 8.5, 10, 14, 16.5, 17 and 24 hours post dose. Blood samples were collected for Cohort 3 on Days 1, 7, and 14 at Pre-dose AM, Pre Dose PM, 0.5, 1, 4, 6, 8, 12.5, 13, 16 and 24 hours post dose.

Safety as assessed by the number of subjects with adverse events (AE) and serious adverse events (SAE)
Up to Day 25

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.

Number of Subjects with clinically-significant changes in physical examination findings
Up to Day 25

A complete physical examination will include, at a minimum, assessment of the cardiovascular (CV), respiratory, gastrointestinal and neurological systems. Weight will also be measured and recorded; height will only be measured and recorded at Screening.

Number of Subjects with clinically-significant changes in electrocardiograms (ECG)
Up to Day 15

12-lead ECGs will be obtained after the subject has rested in the semi-supine position for at least 15 minutes. Triplicate 12-lead ECGs will be obtained at each time point during the study using an ECG machine that automatically calculates the heart rate and measures PR, QRS, QT, and corrected QT (QTc) intervals.

Blood pressure (BP) as a measure of safety and tolerability
Up to Day 15

Triplicate readings of systolic and diastolic blood pressure will be obtained at each time point in semi-supine position after five minutes of rest.

Pulse rate measurements as a measure of safety and tolerability
Up to Day 15

Triplicate readings of pulse rate will be obtained at each time point in semi-supine position after five minutes of rest.

Number of subjects with abnormal laboratory parameters
Up to Day 15

Clinical laboratory assessments will include hematology, clinical chemistry and urinalysis.

Composite pharmacokinetic parameters of epelsiban and its metabolite (GSK2395448)
Up to Day 2

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).

Number of subjects with Adverse events (AEs)
Up to Day 12

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.

Assessment of clinical observations
Up to Day 12
Assessment of hematology parameters
Up to Day 12

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

Assessment of clinical chemistry parameters
Up to Day 12

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.

Assessment of urinalysis by dipstick
Up to Day 12

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

Assessment of vital sign measurements
Up to Day 12

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

Assessment of 12-lead electrocardiogram (ECG)
Up to Day 12

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.

Assessment of physical examination findings
Up to Day 12

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

Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1(600 mg Epelsiban or placebo[every 8 hours])EXPERIMENTALEach subject will receive 200 mg of epelsiban administered TID (every 8 hours) (total daily dose of 600 mg) or a matching placebo administered every 8 hours.
Epelsiban Cohort 1EXPERIMENTALSubjects will receive 300 mg of epelsiban administered orally twice (every 12 hr) on Day 1 (total daily dose of 600 mg)
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).
Additional Cohorts TBD (to be decided)EXPERIMENTALSubjects will be enrolled if determined necessary, based on data collected in Epelsiban Cohort 1 and Cohort 2

Interventions

NameTypeDescription
Epelsiban (GSK557296)DRUGWhite to off-white 0.270 inches x 0.700 inches oblong film coated tablet containing 25 mg or 100 mg epelsiban. To be swallowed whole with water, not to be chewed.
Placebo to match GSK557296DRUGWhite to off-white 0.270 inches x 0.700 inches oblong film coated Tablet containing placebo. To be swallowed whole with water, not to be chewed.
EpelsibanDRUGEpelsiban will be supplied as a 25 mg white to off-white round direct compression oral tablet.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 55 Years
SexFEMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Female 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 ...

Countries:United States
Unlock Eligibility Criteria

Frequently asked questions about Epelsiban

What is Epelsiban used for?

Epelsiban is an investigational small molecule being studied for use in embryo transfer. It is being developed by GSK plc (GSK) and is currently in Phase 1 clinical development. The drug has been evaluated in clinical trials involving healthy female volunteers to assess its safety, tolerability, and pharmacokinetics.

Who makes Epelsiban?

Epelsiban is being developed by GSK plc, which trades under the ticker GSK. The drug is currently in Phase 1 clinical development for embryo transfer. GSK has conducted clinical trials of Epelsiban in the United States, with a total of two completed studies involving 43 healthy female participants.

What phase is Epelsiban in?

Epelsiban is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Two Phase 1 trials have been completed, both involving healthy female volunteers in the United States, with a combined enrollment of 43 participants.

What clinical trials is Epelsiban in?

Epelsiban has been studied in two completed Phase 1 clinical trials. NCT02257359 evaluated the safety, tolerability, and pharmacokinetics of Epelsiban in 12 healthy female volunteers. NCT02703181 was a dose escalation study of repeat doses in 31 healthy women. Both trials were conducted in the United States.

Is Epelsiban FDA approved?

Epelsiban is not FDA approved. It is an investigational drug currently in Phase 1 clinical development for embryo transfer. The drug has completed two early-stage trials in healthy volunteers, but it has not yet progressed to later-stage studies or received regulatory approval.