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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT02727283




Registration number
NCT02727283
Ethics application status
Date submitted
14/12/2015
Date registered
4/04/2016
Date last updated
8/05/2017

Titles & IDs
Public title
A Phase 1, Randomized, Placebo-Controlled, Ascending Cohort, Dose Escalation Study in Normal Healthy Volunteers
Scientific title
A Phase 1, Randomized, Placebo-Controlled, Double-Blind, Ascending Dose Escalating, 4 Period Crossover Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Food Effect of Single Doses of GSK3179106, a REarranged During Transfection (RET) Growth Factor Receptor Tyrosine Kinase Inhibitor, in Normal Healthy Volunteers
Secondary ID [1] 0 0
204729
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Irritable Bowel Syndrome 0 0
Condition category
Condition code
Oral and Gastrointestinal 0 0 0 0
Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - GSK3179106
Treatment: Drugs - Placebo

Experimental: Cohort 1 - Subjects will receive 1 placebo and 3 escalating doses in one of the four treatment periods. The planned dose range is 10 mg to 200 mg. A review of safety and tolerability will occur prior to administration of the next dose level and the same procedure will be followed for each escalating dosing period. The actual doses to be administered may be adjusted based on safety, tolerability, and pharmacokinetic data at previous dose levels; these dose adjustments may involve either an increase or a decrease in the planned dose for both Cohorts 1 and 2

Experimental: Cohort 2 - Cohort 2 will proceed after completion of the treatment periods in Cohort 1. Subjects assigned to Cohort 2 will participate in up to 4 dosing periods which include up to 2 escalating doses and placebo in Periods 1 and 2, and a pilot food effect in Periods 3 and 4. A review of safety and tolerability will occur prior to administration of the next dose level and the same procedure will be followed for each escalating dosing period. The actual doses to be administered may be adjusted based on safety, tolerability, and pharmacokinetic data at previous dose levels; these dose adjustments may involve either an increase or a decrease in the planned dose for both Cohorts 1 and 2


Treatment: Drugs: GSK3179106
GSK3179106 will be provided as white to slightly colored round or oblong tablet for oral administration with unit dose strength of 5 mg, 25 mg and 100 mg

Treatment: Drugs: Placebo
Placebo will be provided as white to slightly colored round or oblong tablet for oral administration with unit dose strength to match actives across all strengths

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Number of subjects with adverse events (AE) and clinical observations as a measure of safety - An AE is any untoward medical occurrence in a subject or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.
Timepoint [1] 0 0
Up to 10 weeks in each cohort
Primary outcome [2] 0 0
Assessment of physical examination findings as a measure of safety - Physical examination will include the assessment of the cardiovascular, respiratory, gastrointestinal and neurological systems. A brief physical examination will be conducted at follow-up visit which include, at a minimum assessments of the lungs, cardiovascular system, and abdomen (liver and spleen). Height and weight will also be measured and recorded (height will only be recorded at screening assessment).
Timepoint [2] 0 0
Screening, Day-1 and at follow-up (up to 10 weeks) in each cohort
Primary outcome [3] 0 0
Safety as assessed by 12-lead electrocardiogram (ECG) - 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 interval (QTc).
Timepoint [3] 0 0
Up to 10 weeks in each cohort
Primary outcome [4] 0 0
Safety as assessed by systolic and diastolic blood pressure measurements - Three readings of systolic and diastolic pressure will be taken at each time point and the average will be calculated electronically
Timepoint [4] 0 0
Up to 10 weeks in each cohort
Primary outcome [5] 0 0
Safety as assessed by temperature measurements - Temperature measurements will be taken at Screening, Day-1 and pre-dose in each treatment period. For all other vital sign time points if clinically indicated
Timepoint [5] 0 0
Up to 10 weeks in each cohort
Primary outcome [6] 0 0
Safety as assessed by pulse rate measurements - Three readings of systolic and diastolic pressure will be taken at each time point and the average will be calculated electronically
Timepoint [6] 0 0
Up to 10 weeks in each cohort
Primary outcome [7] 0 0
Composite of clinical laboratory assessments as a measure of safety includes hematology, clinical chemistry and urinalysis - Clinical safety laboratory assessments include hematology, clinical chemistry, urinalysis and additional parameters
Timepoint [7] 0 0
Up to 10 weeks in each cohort
Primary outcome [8] 0 0
Bristol Stool Form Scale - The Bristol Stool Form Scale describes 7 types of stool and will be used by the subject to monitor the changes in defecation pattern during the study
Timepoint [8] 0 0
Up to Day 4 in each cohort
Secondary outcome [1] 0 0
Area under the plasma concentration-time curve (AUC) from zero to time t (AUC [0-t]) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [1] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h postdose in each treatment period of cohort 1
Secondary outcome [2] 0 0
AUC from zero to infinity (AUC [0-infinity]) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [2] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [3] 0 0
AUC from zero to 24 h (AUC [0-24 h]) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [3] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [4] 0 0
Maximum observed plasma concentration (Cmax) of escalating single oral doses of GSK3179106 administered under fasting conditions - PK parameters under fasting conditions
Timepoint [4] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [5] 0 0
Time to maximum observed plasma concentration (tmax) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [5] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [6] 0 0
Apparent terminal phase half-life (t1/2) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [6] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [7] 0 0
Clearance (CL/F) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [7] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [8] 0 0
Volume of distribution (V/F) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [8] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [9] 0 0
Absorption rate constant (Ka) of GSK3179106 administered under fasting condition - PK parameters under fasting conditions
Timepoint [9] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 1
Secondary outcome [10] 0 0
Area under the plasma concentration-time curve (AUC) from zero to time t (AUC [0-t]) of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [10] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [11] 0 0
AUC from zero to infinity (AUC [0-infinity]) of GSK3179106 administered under fasting condition fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [11] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [12] 0 0
AUC from zero to 24 h (AUC [0-24 h]) of GSK3179106 administered under fasting condition fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [12] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [13] 0 0
Maximum observed plasma concentration (Cmax) of escalating single oral doses of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [13] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [14] 0 0
Time to maximum observed plasma concentration (tmax) of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [14] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [15] 0 0
Apparent terminal phase half-life (t1/2) of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [15] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [16] 0 0
Clearance (CL/F) of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [16] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [17] 0 0
Volume of distribution (V/F) of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [17] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2
Secondary outcome [18] 0 0
Absorption rate constant (Ka) of GSK3179106 administered under fasting and fed condition - PK parameters under fasting and fed conditions
Timepoint [18] 0 0
Day 1 Pre-dose and 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, 5 h, 6 h, 8 h, 12 h, 18 h, 24 h, 36 h, 48 h, 60 h and 72 h post-dose in each treatment period of cohort 2

Eligibility
Key inclusion criteria
- Between 18 and 55 years of age inclusive, at the time of signing the informed consent.

- Healthy as determined by the investigator based on a medical evaluation including
medical history, physical examination, laboratory tests and cardiac monitoring. A
subject with a clinical abnormality or laboratory parameter(s) which is/are not
specifically listed in the inclusion or exclusion criteria, outside the reference
range for the population being studied may be included only if the investigator, in
consultation with the medical monitor, agree and document that the finding is unlikely
to introduce additional risk factors and will not interfere with the study procedures.

- History of regular bowel habits.

- Male or Female Males: Male subjects with female partners of child bearing potential
must comply with the following contraception requirements from the time of first dose
of study medication until at least five half-lives of study medication after the last
dose of study medication.

1. Vasectomy with documentation of azoospermia.

2. Male condom plus partner use of one of the contraceptive options below:

Contraceptive subdermal implant, Intrauterine device or intrauterine system, Oral
Contraceptive, either combined or progestogen alone Injectable progestogen, Contraceptive
vaginal ring.

This is an all-inclusive list of those methods that meet the following GlaxoSmithKline
(GSK) definition of highly effective: having a failure rate of less than 1 percentage (%)
per year when used consistently and correctly and, when applicable, in accordance with the
product label. For non-product methods (e.g., male sterility), the investigator determines
what is consistent and correct use.

The investigator is responsible for ensuring that subjects understand how to properly use
these methods of contraception.

Females: A female subject is eligible to participate if she is of non-reproductive
potential defined as: Pre-menopausal females with one of the following:

Documented tubal ligation Documented hysteroscopic tubal occlusion procedure with follow-up
confirmation of bilateral tubal occlusion Hysterectomy Documented Bilateral Oophorectomy
Postmenopausal defined as 12 months of spontaneous amenorrhea in questionable cases a blood
sample with simultaneous follicle stimulating hormone (FSH) and estradiol levels consistent
with menopause (refer to laboratory reference ranges for confirmatory levels). Females on
hormone replacement therapy (HRT) and whose menopausal status is in doubt will be required
to use one of the highly effective contraception methods if they wish to continue their HRT
during the study. Otherwise, they must discontinue HRT to allow confirmation of
post-menopausal status prior to study enrolment.

- Capable of giving signed informed consent which includes compliance with the
requirements and restrictions listed in the consent form and in this protocol.
Minimum age
18 Years
Maximum age
55 Years
Gender
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
- 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%).

- Previous diagnosis of IBS.

- Estimated Glomerular Filtration Rate <60 milliliters per minute 1.73 square meter
(mL/min/1.73m^2).

- Current or chronic history of liver disease, or known hepatic or biliary abnormalities
(with the exception of Gilbert's syndrome or asymptomatic gallstones).

- History of gastroesophageal reflux disease (GERD), dyspepsia, gastrointestinal (GI)
bleeding, GI surgery that could affect motility

- A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody
result within 3 months of screening.

- A positive pre-study drug/alcohol screen.

- A positive test for human immunodeficiency virus (HIV) antibody.

- History of regular alcohol consumption within 6 months of the study defined as: an
average weekly intake of >14 standard drinks. One standard drink is equivalent to 10
grams (g) of alcohol: 285 ml of beer, 100 ml of wine or 30 ml of 40% alcohol by volume
distilled spirits.

- Current smoker or use of nicotine containing products within the past 3 months or
unable to abstain from smoking tobacco or the use of nicotine-containing products
while on study.

- Unable to refrain from consumption of red wine, seville oranges, grapefruit or
grapefruit juice and/or pummelos, exotic citrus fruits, grapefruit hybrids or fruit
juices from 1 day prior to the first dose of study drug on Day 1 of each dosing
period, until completion of the last PK blood sample time point for that dose period.

- Corrected QT interval to Fridericia's formula (QTcF) >450 milliseconds (msec)

- 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 GSK
Medical Monitor, contraindicates their participation.

- Unable to refrain from the use of prescription or non-prescription drugs, including
vitamins, herbal and dietary supplements (including St John's Wort) within 7 days (or
14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is
longer) prior to the first dose of study medication for each dosing period until Day 4
of each dosing period, unless in the opinion of the Investigator and GSK Medical
Monitor the medication will not interfere with the study procedures or compromise
subject safety. Paracetamol (<=2 grams per day) is acceptable.

- 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 4 investigational medicinal products within 12 months prior to
the first dosing day

- Unwillingness or inability to follow the procedures outlined in the protocol.

- Where participation in the study would result in donation of blood or blood products
in excess of 500 mL within a 56 day period.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s


The people analysing the results/data
Intervention assignment
Crossover
Other design features
Phase
Phase 1
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
SA
Recruitment hospital [1] 0 0
GSK Investigational Site - Adelaide
Recruitment postcode(s) [1] 0 0
5000 - Adelaide

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
GlaxoSmithKline
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
GSK3179106 is a potent and relatively selective inhibitor of RET kinase which has been
designed to be a safe and effective therapy for irritable bowel syndrome (IBS) patients .

This is a randomized, double-blind (sponsor unblind), placebo-controlled, dose escalating,
four period, single-dose crossover, first time in human study to assess the safety,
tolerability and pharmacokinetics of GSK3179106 in normal healthy subjects.

The study will be composed of 2 cohorts, each having screening (21 days prior to first dose
of study drug), Treatment, and follow-up periods (7-10 days after their last dose [Day 1 of
dosing period 4]). The Treatment period will include 4 dosing periods. Subjects will
participate in either Cohort 1 or Cohort 2. The total duration of the study for each subject
will be approximately 10 weeks. A sufficient number of healthy subjects will be screened to
enrol 16 subjects who complete the planned study procedures. Each dosing period will be
staggered so that only 2 of the 8 subjects will be administered study drug initially. Once 24
hours (h) have elapsed, and provided there are no safety concerns, the remainder of subjects
scheduled for that dosing period may be dosed. A review of safety and tolerability will occur
prior to administration of the next dose level. This same procedure will be followed for each
escalating dosing period. Subjects assigned to Cohort 1 will participate in 1 placebo and 3
dose escalating periods. Subjects assigned to Cohort 2 will participate in up to 4 dosing
periods which include up to 2 escalating doses and placebo in Periods 1 and 2, and a pilot
food effect in Periods 3 and 4. Within each cohort, subjects will return for their next
scheduled dosing period approximately 14 days after administration of the study drug during
the prior dosing period. Cohort 2 will proceed after completion of the treatment periods in
Cohort 1. Each subject will be enrolled in only one cohort. The planned dose range is 10
milligram (mg) to 200 mg in Cohort 1. The actual doses to be administered may be adjusted
based on safety, tolerability, and pharmacokinetic data at previous dose levels; these dose
adjustments may involve either an increase or a decrease in the planned dose for both Cohorts
1 and 2. There are no formal hypotheses being tested in this study.
Trial website
https://clinicaltrials.gov/show/NCT02727283
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
GSK Clinical Trials
Address 0 0
GlaxoSmithKline
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications