A Study to Assess the Effectiveness and Side Effects of GSK2798745 in Participants With Chronic Cough

September 6, 2019 updated by: GlaxoSmithKline

A Placebo-controlled, Double-blind (Sponsor Open), Randomized, Crossover Study to Assess the Efficacy, Safety, and Tolerability of GSK2798745 in Participants With Chronic Cough

GSK2798745 is a potent and selective transient receptor potential vanilloid 4 (TRPV4) channel blocker being investigated for the treatment of chronic cough. This is a multi-center, randomized, placebo-controlled, double-blind, two-period crossover study with a purpose to evaluate efficacy and safety of GSK2798745. Each subject will have 2 treatment periods, and will be randomized to one of the following treatments in each period: A) Placebo matching to GSK2798745 once daily for 7 days. B) 4.8 milligrams (mg) GSK2798745 on Day 1, followed by 2.4 mg GSK2798745 once daily for 6 days. There will be a washout period of 14 to 21 days between the treatment periods. A maximum of 48 subjects will be enrolled in the study and the total duration of participation in the study will be maximum of 10 and a half weeks including follow-up visit.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
17

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Belfast, United Kingdom, BT9 7BL
        • GSK Investigational Site
      • Belfast, United Kingdom, BT9 7B
        • GSK Investigational Site
      • Cottingham, United Kingdom, HU16 5JQ
        • GSK Investigational Site
      • Cottingham, United Kingdom, HU16 5
        • GSK Investigational Site
      • North Shields, United Kingdom, NE29 8NH
        • GSK Investigational Site
      • North Shields, United Kingdom, NE29 8
        • GSK Investigational Site
    • Lancashire
      • Manchester, Lancashire, United Kingdom, M23 9LT
        • GSK Investigational Site
      • Manchester, Lancashire, United Kingdom, M23 9L
        • GSK Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age between 18 and 75 years of age inclusive, at the time of signing the informed consent.
  • Chronic idiopathic cough for >=1 year (before screening), defined as: a cough that is unresponsive to at least 8 weeks of targeted treatment, or a cough for which no objective evidence of an underlying trigger has been determined, despite medical investigations.
  • No significant findings on chest imaging (chest X-ray [CXR] or Computed tomography scan) within 12 months before screening (subjects with an abnormal CXR within 12 months, from a temporary process, will be allowed to participate if a repeat CXR is normal).
  • Forced expiratory volume in one second (FEV1) >=80% of the predicted normal value (at screening), or documented evidence of FEV1 >=80% within the 6 months before screening.
  • Score of >=40 millimeters (mm) on the Cough Severity Visual Analogue Scale (VAS) at Screening.
  • Body weight >=50 kilogram (kg) and body mass index (BMI) within the range 18 to 40 kilogram per meter square (kg/m^2) (inclusive) at screening.
  • A male participant must agree to follow the contraception requirements stated in the protocol from the time of first dose of study treatment until 2 weeks after last dose of study treatment, and refrain from donating sperm during this period.
  • A female participant is eligible to participate if she is not of childbearing potential.
  • Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.

Exclusion Criteria:

  • History or current evidence of any serious or clinically significant gastrointestinal, renal, endocrine, neurologic, hematologic or other condition that is uncontrolled on permitted therapies or that would, in the opinion of the investigator or the medical monitor, make the subject unsuitable for inclusion in this study.
  • History or current evidence of chronic productive cough.
  • History of acute coronary syndromes (including unstable angina), coronary angioplasty, or stenting within the 6 months before screening.
  • Active ulcer disease or gastrointestinal bleeding at the time of screening (positive fecal occult blood test [FOBT] at screening).
  • History of stroke or seizure disorder within 5 years of screening.
  • Respiratory tract infection within 6 weeks of screening.
  • Subject who, in the investigator's opinion, poses a significant suicide risk. Evidence of serious suicide risk may include any history of suicidal behavior and/or any evidence of suicidal ideation on any questionnaires e.g. Type 4 or 5 on the Columbia Suicidality Severity Rating Scale (C-SSRS) in the last 6 months (assessed at screening).
  • Alanine transferase (ALT) > twice the upper limit of normal (ULN) at screening.
  • Bilirubin >1.5 times ULN (isolated bilirubin >1.5 times ULN is acceptable if bilirubin is fractionated and direct bilirubin <35%) at screening.
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • QT interval corrected (QTc) >450 milliseconds (msec) or QTc >480 msec in subjects with bundle branch block at screening.
  • Use of a listed prohibited medication within the restricted timeframe relative to the first dose of study treatment.
  • Use of a strong inhibitors or inducers of cytochrome P450 (CYP) 3A or pglycoprotein.
  • Participation in the study would result in loss of blood or blood products in excess of 500 milliliters (mL) within 3 months of screening.
  • Exposure to more than 4 new chemical entities within 12 months prior to the first dosing day.
  • Current enrollment or past participation within the 3 months before screening in any clinical study involving an investigational study treatment or any other type of medical research.
  • Positive human immunodeficiency virus (HIV) antibody test at screening.
  • Presence of Hepatitis B surface antigen (HBsAg) at screening.
  • Positive Hepatitis C antibody test result at screening or within 3 months prior to starting study treatment.
  • Positive Hepatitis C ribonucleic acid (RNA) test result at screening or within 3 months prior to first dose of study treatment.
  • Cardiac troponin at screening > ULN for the assay.
  • History of alcohol abuse within 6 months of screening, in the opinion of the investigator.
  • Current smoker or history of smoking within the 6 months before screening, or a cumulative history of >= 20 pack years. Pack years = (Number of cigarettes smoked/day/20) x (Number of years smoked)
  • Sensitivity to any of the study treatments, or components thereof, or drug or other allergy that, in the opinion of the investigator or Medical Monitor, contraindicates participation in the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment Sequence AB
Subjects will receive GSK2798745 matching placebo tablets (two tablets on Day 1 followed by one tablet once daily for 6 days), via oral route (treatment period of total 7 days). After a washout period of 14 to 21 days, subjects will then receive 4.8 mg (two tablets of 2.4 mg) GSK2798745 on Day 1, followed by 2.4 mg GSK2798745 tablets once daily for 6 days via oral route (treatment period of total 7 days).
Drug: GSK2798745
GSK2798745 tablets will be available as white to almost white, round, film-coated tablets (micronized active pharmaceutical ingredient [API]) to be taken with a glass of water (approximately 240 mL).
Drug: Placebo
Placebo tablets will be available as white to almost white, round, film-coated tablets to be taken with a glass of water (approximately 240 mL).
Experimental: Treatment Sequence BA
Subjects will receive 4.8 mg (two tablets of 2.4 mg) GSK2798745 on Day 1, followed by 2.4 mg GSK2798745 tablets once daily for 6 days via oral route (treatment period of total 7 days). After a washout period of 14 to 21 days, subjects will then receive GSK2798745 matching placebo tablets (two tablets on Day 1 followed by one tablet once daily for 6 days), via oral route (treatment period of total 7 days).
Drug: GSK2798745
GSK2798745 tablets will be available as white to almost white, round, film-coated tablets (micronized active pharmaceutical ingredient [API]) to be taken with a glass of water (approximately 240 mL).
Drug: Placebo
Placebo tablets will be available as white to almost white, round, film-coated tablets to be taken with a glass of water (approximately 240 mL).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Total Cough Counts During Day Time Hours Following 7-days of Dosing
Time Frame: Up to 10 hours post-dose on Day 7 of each treatment period
Coughs were monitored using the VitaloJAK cough monitor. The total cough counts during day-time (10 hours) was calculated from the time of the monitor being attached i.e. immediately after dosing on Day 7 to 10 hours past the time of monitoring. Total cough counts were log-transformed prior to analysis. A non-informative prior was used. Analysis was performed using a Bayesian mixed model adjusting for subject-level and period-adjusted baselines, treatment and period. Subject-level baseline is defined as the mean of the two period-specific baselines. Period-adjusted baseline is defined as the difference between the period-specific baseline and subject-level baseline for each period. Posterior median and 95% credible interval is reported. All Subjects Population included all randomized participants who took at least 1 dose of study treatment. Participants were analyzed according to the treatment they actually received.
Up to 10 hours post-dose on Day 7 of each treatment period

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Participants Reporting Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Up to 45 days
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. An SAE is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect, associated with liver injury and impaired liver function or any other situations as per medical or scientific judgment.
Up to 45 days
Change From Baseline Values for Clinical Chemistry Parameters: Alkaline Phosphatase (ALP), Alanine Aminotransferase (ALT), Aspartate Amino Transferase (AST) and Creatinine Kinase (CK)
Time Frame: Baseline (Day -1) and Day 8 of each treatment period
Blood samples were collected for the analysis of clinical chemistry parameters including ALP, ALT, AST and CK. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 of each treatment period
Change From Baseline Values for Clinical Chemistry Parameter: Direct Bilirubin, Total Bilirubin and Creatinine
Time Frame: Baseline (Day -1) and Day 8 for each treatment period
Blood samples were collected for the analysis of clinical chemistry parameters including direct bilirubin, total bilirubin and creatinine. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 for each treatment period
Change From Baseline Values for Clinical Chemistry Parameters: Calcium, Glucose, Potassium, Sodium and Urea
Time Frame: Baseline (Day -1) and Day 8 of each treatment period
Blood samples were collected for the analysis of clinical chemistry parameters including calcium, glucose, potassium, sodium and urea/blood urea nitrogen (BUN). Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 of each treatment period
Change From Baseline Values for Clinical Chemistry Parameter: Total Protein
Time Frame: Baseline (Day -1) and Day 8 of each treatment period
Blood samples were collected for the analysis of clinical chemistry parameter total protein. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 of each treatment period
Number of Participants With Abnormal Values of Cardiac Troponin
Time Frame: Up to 45 days
Cardiac troponin values was measured in participants.
Up to 45 days
Change From Baseline Values for Hematology Parameters: Basophils, Eosinophils, Lymphocytes, Monocytes, Total Neutrophils, Platelet Count and White Blood Cell (WBC) Count
Time Frame: Baseline (Day -1) and Day 8 of each treatment period
Blood samples were collected for the analysis of hematology parameters including basophils, eosinophils, lymphocytes, monocytes, total neutrophils, platelet count and WBC count. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 of each treatment period
Change From Baseline Values for Hematology Parameter: Hemoglobin
Time Frame: Baseline (Day -1) and Day 8 for each treatment period
Blood samples were collected for the analysis of hematology parameter: hemoglobin. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 for each treatment period
Change From Baseline Values for Hematology Parameter: Hematocrit
Time Frame: Baseline (Day -1) and Day 8 of each treatment period
Blood samples were collected for the analysis of hematology parameter: hematocrit. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 of each treatment period
Change From Baseline Values for Hematology Parameter: Mean Corpuscular Hemoglobin (MCH)
Time Frame: Baseline (Day -1) and Day 8 for each treatment period
Blood samples were collected for the analysis of hematology parameter: MCH. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 for each treatment period
Change From Baseline Values for Hematology Parameter: Mean Corpuscular Volume (MCV)
Time Frame: Baseline (Day -1) and Day 8 of each treatment period
Blood samples were collected for the analysis of hematology parameter: MCV. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 of each treatment period
Change From Baseline Values for Hematology Parameter: Red Blood Cell (RBC) Count
Time Frame: Baseline (Day -1) and Day 8 for each treatment period
Blood samples were collected for the analysis of hematology parameter: RBC count. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 for each treatment period
Change From Baseline Values for Hematology Parameter: Reticulocytes
Time Frame: Baseline (Day -1) and Day 8 for each treatment period
Blood samples were collected for the analysis of hematology parameter: reticulocytes. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (Day -1) and Day 8 for each treatment period
Number of Participants With Abnormal Urinalysis Data
Time Frame: Up to Day 8
Urine samples were collected for analysis of urinalysis data by dipstick method. Number of participants with abnormal urinalysis data has been presented. Abnormality was defined as value of potential clinical importance (PCI). PCI was flagged when a result changed from negative on Day 1 (pre-dose) to positive on Day 8.
Up to Day 8
Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)
Time Frame: Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Blood pressure was measured at indicated time points in supine position after 5 minutes rest for the participant. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Change From Baseline in Temperature
Time Frame: Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Temperature was measured at indicated time points in supine position after 5 minutes rest for the participant. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Change From Baseline in Heart Rate
Time Frame: Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Heart rate was measured at indicated time points in supine position after 5 minutes rest for the participant. Baseline was defined as latest pre-dose assessment with a non-missing value in each treatment period. Change from Baseline was calculated as the value at the post-dose visit minus the Baseline value.
Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Number of Participants With Abnormal Electrocardiogram (ECG) Findings
Time Frame: Baseline (pre-dose on Day 1) and Day 8 of each treatment period
Twelve-lead ECG was obtained using an ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, and corrected QT (QTc) intervals. Number of participants with abnormal-clinically significant and abnormal-not clinically significant values has been presented.
Baseline (pre-dose on Day 1) and Day 8 of each treatment period

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
GlaxoSmithKline

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Biomedical Advanced Research and Development Authority

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 5, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 8, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 8, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 8, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 8, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 13, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 2, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 6, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 207702
  • 2017-002265-21 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

IPD for this study will be made available via the Clinical Study Data Request site.

IPD Sharing Time Frame

IPD will be made available within 6 months of publishing the results of the primary endpoints of the study.

IPD Sharing Access Criteria

Access is provided after a research proposal is submitted and has received approval from the Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension can be granted, when justified, for up to another 12 months.

IPD Sharing Supporting Information Type

  • Study Protocol
  • Statistical Analysis Plan (SAP)
  • Informed Consent Form (ICF)
  • Clinical Study Report (CSR)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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