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GSK1325756

Phase 2

Virus Diseases | Small molecule | Infectious Disease |GSK plc|Last Updated: Jul 23, 2019

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment45

FDA Designations

No designations recorded

Clinical trial landscape

GSK1325756 · 6 trials · 4 indications

Phase 2 1Phase 1 5
NCT02469298Safety, Tolerability and Clinical Effect of Danirixin in Adults With InfluenzaVirus Diseases
COMPLETED45 Analytics
PHASE2COMPLETED
Safety, Tolerability and Clinical Effect of Danirixin in Adults With Influenza
Virus DiseasesUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)
Up to Day 28/withdrawal

AE is any untoward medical occurrence in a participant or clinical investigation participant, 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. For marketed medicinal products, this also includes failure to produce expected benefits (i.e., lack of efficacy), abuse or misuse. SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect or is medically significant.

Change From Baseline in Hematology Parameters-Basophils, Eosinophils, Lymphocytes, Monocytes, Total Neutrophils (Total Absolute Neutrophil Count [Total ANC]), Platelet Count and White Blood Cell (WBC) Count
Baseline (Day 1) and up to Day 28/withdrawal

Hematology parameters included Basophils, Eosinophils, Lymphocytes, Monocytes, Total neutrophils (Total ANC), Platelet count and WBC count. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Hematology Parameters- Hemoglobin
Baseline (Day 1) and up to Day 28/withdrawal

Hematology parameters included Hemoglobin. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Hematology Parameters- Hematocrit
Baseline (Day 1) and up to Day 28/withdrawal

Hematology parameters included Hematocrit. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Hematology Parameters- Mean Corpuscle Hemoglobin (MCH)
Baseline (Day 1) and up to Day 28/withdrawal

Hematology parameters included Mean corpuscle hemoglobin (MCH). Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Hematology Parameters- Mean Corpuscle Volume (MCV)
Baseline (Day 1) and up to Day 28/withdrawal

Hematology parameters included Mean corpuscle volume (MCV). Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Hematology Parameters- Red Blood Cell (RBC) Count and Reticulocytes Count
Baseline (Day 1) and up to Day 28/withdrawal

Hematology parameters included RBC count and Reticulocytes count. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Clinical Chemistry Parameters- Albumin and Total Protein
Baseline (Day 1) and up to Day 28/withdrawal

Clinical chemistry parameters included Albumin and Total protein. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Clinical Chemistry- Alkaline Phosphatase (ALP), Alanine Amino Transferase (ALT), Aspartate Amino Transferase (AST) and Gamma Glutamyl Transferase (GGT)
Baseline (Day 1) and up to Day 28/withdrawal

Clinical chemistry parameters included Alkaline phosphatase, Alanine Amino Transferase, Aspartate Amino Transferase and Gamma Glutamyl Transferase. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Clinical Chemistry Parameters- Direct Bilirubin, Total Bilirubin, Creatinine and Uric Acid
Baseline (Day 1) and up to Day 28/withdrawal

Clinical chemistry parameters included Direct Bilirubin, Total Bilirubin, Creatinine and Uric acid. Blood samples were collected on Day 1, Day 3, Day 5 and Day28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Clinical Chemistry Parameters- Calcium, Carbon Dioxide (CO2) Content/ Bicarbonate, Glucose, Potassium, Sodium and Urea/Blood Urea Nitrogen (BUN)
Baseline (Day 1) and up to Day 28/withdrawal

Clinical chemistry parameters included Calcium, CO2 content/ Bicarbonate, Glucose, Potassium, Sodium and Urea/(BUN). Blood samples were collected on Day 1, Day 3, Day 5 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Urinalysis Parameters- Urine pH
Baseline (Day 1), Day 5 and Day 28/withdrawal

Urinalysis parameters included urine pH. pH is calculated on a scale of 0 to 14, such that, the lower the number, more acidic the urine and higher the number, more alkaline the urine with 7 being neutral. Urinalysis was done on Day 1, Day 5 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Urinalysis Parameters- Urine Specific Gravity
Baseline (Day 1), Day 5 and Day 28/withdrawal

Urinalysis parameter included Urine specific gravity and was measured on Day 1, Day 5 and Day 28. Urinary specific gravity is a measure of the concentration of solutes in the urine. It measures the ratio of urine density compared with water density and provides information on the kidney's ability to concentrate urine. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Number of Participants With Maximum Post-baseline Urine Dipstick Abnormalities- Urine Occult Blood (Dipstick)
Up to Day 28/withdrawal

The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameter of urine occult blood can be read as negative, Trace, 1+, 2+, 3+ and 4+, indicating proportional concentrations in the urine sample. Assessments recorded on Day 1 were considered as Baseline.

Number of Participants With Maximum Post-baseline Urine Dipstick Abnormalities- Urine Glucose (Dipstick)
Up to Day 28/withdrawal

The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameter of urine glucose can be read as negative, Trace, 1+ or 1/4 gram per deciliter (G/dL), 2+ OR 1/2 G/dL, 3+ or 1 G/dL and 4+ indicating proportional concentrations in the urine sample. Assessments recorded on Day 1 were considered as Baseline.

Number of Participants With Maximum Post-baseline Urine Dipstick Abnormalities- Urine Protein (Dipstick)
Up to Day 28/withdrawal

The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameter of urine protein can be read as negative, Trace, 1+, 2+, 3+ and 4+, indicating proportional concentrations in the urine sample. Assessments recorded on Day 1 were considered as Baseline.

Change From Baseline in Vital Signs- Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)
Baseline (Day 1) and up to Day 28/withdrawal

Vital signs were measured in semi-supine position after 5 minutes rest and included systolic and diastolic blood pressure. Three readings of blood pressure were taken; the first reading was rejected and the second and third readings were averaged to give the measurement to be recorded. Vital signs were obtained on Baseline (Day 1), Day 3, Day 5, Day 8, Day 14 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Vital Signs- Heart Rate (HR)
Baseline (Day 1) and up to Day 28/withdrawal

Vital signs were measured in semi-supine position after 5 minutes rest and included HR. Three readings of pulse rate were taken; the first reading was rejected and the second and third readings were averaged to give the measurement to be recorded. Vital signs were obtained on Day 1, Day 3, Day 5, Day 8, Day 14 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Vital Signs- Respiration Rate (RR)
Baseline (Day 1) and up to Day 28/withdrawal

Vital signs were measured in semi-supine position after 5 minutes rest and included RR. RR was obtained on Day 1, Day 3, Day 5, Day 8, Day 14 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Vital Signs- Temperature
Baseline (Day 1) and up to Day 28/withdrawal

Vital signs were measured in semi-supine position after 5 minutes rest and included temperature. Oral temperature was obtained on Day 1, Day 3, Day 5, Day 8, Day 14 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Vital Signs- Percent Oxygen in Blood (POB)
Baseline (Day 1) and up to Day 28/withdrawal

Vital signs were measured in semi-supine position after 5 minutes rest and included POB. POB was obtained on Baseline (Day 1), Day 3, Day 5, Day 8, Day 14 and Day 28/withdrawal. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Change From Baseline in Electrocardiogram (ECG) Parameters
Baseline (Day 1) and up to Day 28/withdrawal

12-lead ECGs were obtained on Day 1, Day 3 and Day28/withdrawal using an ECG machine that automatically calculates and measures RR, PR, QRS, QT, and Corrected QT Interval using Bazette's formula (QTcB) and Corrected QT Interval using Fridericia forumula (QTcF) intervals. Assessments recorded on Day 1 were considered as Baseline. Change from Baseline was equal to Post-Dose Visit Value minus Baseline.

Number of Participants With Disease Related Events (DREs) of Interest
Up to Day 28/withdrawal

Disease-related events of interest included Otitis media, Sinusitis, Bronchitis and Pneumonia and were captured separately from AEs and SAEs. DREs of interest were assessed and recorded by the site on all clinical visit days.

Number of Participants With DRE of Interest-associated Antibiotic Use
Up to Day 28/withdrawal

Use of antibiotics for DREs of interest was monitored. Roxithromycin was used for DRE sinusitis by one participant.

Number of subjects with adverse events (AEs)
Part A and Part B: from Day -1 until 7 to 10 days post-last dose

An AE is any untoward medical occurrence in a clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product

Changes over time in clinical laboratory evaluations from pre-dose values
Part A and Part B: from Day -1 until 7 to 10 days post-last dose

Clinical laboratory assessments will include hematology, clinical chemistry, urinalysis parameters

Changes over time in vital signs from pre-dose values
Part A and Part B: from Day -1 until 7 to 10 days post-last dose

Vital sign measurements will include systolic and diastolic blood pressure and pulse rate

Changes over time in electrocardiogram (ECG) parameters from pre-dose values
Part A and Part B: from Day -1 until 7 to 10 days post-last dose

12-lead ECGs will be obtained at each timepoint

GSK1325756 PK parameters following single dose administration in Part A and on Day 1 of Part B
Part A: Pre-dose, 0.5 hour (hr), 1hr (end of infusion/post oral dose), 1.5, 2, 3, 4, 8, 12, 24hrs post-dose in each treatment period.

PK parameters will include area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time \[AUC(0-infinity)\], area under the concentration-time curve from time zero (pre-dose) to time t \[AUC(0-t)\], area under the concentration-time curve from time zero (pre-dose) to 24 hours \[AUC(0-24)\], maximum observed concentration (Cmax), time to maximum observed concentration (tmax), observed concentration at 24 hours post-dose (C24), terminal half-life (t1/2), time of last measurable concentration (tlast), clearance (CL) and volume of distribution (Vz)

GSK1325756 PK parameters following repeat dose administration (Part B, Day 5)
Part B: Day 5 at pre-dose, 0.5, 1hr (end of infusion), 1.5, 2, 3, 4, 8, 12 and 24 hrs post-dose

PK parameters will include area under the concentration-time curve from time zero (pre-dose) to the end of the dosing interval \[AUC(0-tau)\], concentration at the end of the dosing interval (Ctau), Cmax, tmax, t1/2, Volume of distribution at steady-state (Vdss), and oral clearance (CL/F)

Pharmacokinetics
Forty eight hour period following dose

For determination of Area Under the blood concentration time Curve (AUC) for GSK1325756

Pharmacokinetic parameters for GSK1325756 following the administration of a single dose of 100mg of a tablet formulation of GSK1325756 in the fed (after a high-fat meal) and fasted states in healthy adult subjects in the age range 40 to 64 y
48h of dosing
PK ofGSK1325756 following the administration of a single dose of 100mg of a tablet formulation of GSK1325756 given concomitantly with the final oral dose of 40mg omeprazole on the fifth day of repeat omeprazole dosing in healthy adult subjects 40-64y old
48h of dosing
PK parameters for GSK1325756 following the administration of a single dose of 100mg of a tablet formulation of GSK1325756 in the fasted state in healthy adult subjects in the age range 65 to 80 years
48h of dosing
Safety and tolerabilty of GSK1325756 as assessed by clinical monitoring of blood pressure, pulse rate, ECG, and laboratory data, as well as reporting of AEs.
Study duration

Secondary Endpoints

Time to Resolution of Fever Over Time Post Initiation of Treatment
Up to Day 28/withdrawal
Number of Afebrile Participants Over Time Post Initiation of Treatment
Up to Day 28/withdrawal
Number of Participants Who Used Relief Medication
Up to Day 28/withdrawal
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Danirixin + Oseltamivir matching placeboEXPERIMENTALSubjects will receive 75 mg oral Danirixin twice daily with Oseltamivir matching placebo twice daily for a total of ten doses over five days
Danirixin matching placebo + Oseltamivir matching placeboPLACEBO_COMPARATORSubjects will receive Danirixin matching placebo twice daily with Oseltamivir matching placebo twice daily for a total of ten doses over five days
Danirixin + OseltamivirEXPERIMENTALSubjects will receive 75 mg oral Danirixin twice daily with 75 mg Oseltamivir twice daily for a total of ten doses over five days
Danirixin matching placebo + OseltamivirACTIVE_COMPARATORSubjects will receive Danirixin matching placebo twice daily with 75 mg Oseltamivir twice daily for a total of ten doses over five days
Part A (Cohort 1)EXPERIMENTALApproximately 8 subjects (6 Active, 2 Placebo) will be randomized to receive single escalating IV doses i.e.10 milligrams (mg), 25 mg and 100 mg, plus one oral 100 mg dose (on the last occasion) of GSK1325756 or matching placebo, with a 7-days washout between doses. Dose escalations will be based on review of PK and safety data from preceding dose level. The projected doses for each group are subject to modification based upon PK and safety data from preceding cohorts. Pharmacokinetic parameters will be reviewed from at least 4 active subjects from preceding dose before dose escalating to the next dose level. The maximum dose administered will be 100 mg. Additional subjects/Cohorts may be enrolled.
Part B (Cohorts 2 and 3)EXPERIMENTALApproximately 8 subjects (6 Active, 2 Placebo) per cohort will be randomized to receive escalating repeated IV doses of GSK1325756 or matching placebo (Cohort 2: 25 mg, Cohort 3: 50 mg) for 5 days. Repeated (BID) doses of GSK1325756 will begin the morning of Day 1 and continue through the morning of Day 5 (9 total doses). Dose escalations will be based on review of PK and safety data from preceding dose level. The projected doses for each group are subject to modification based upon PK and safety data from preceding cohorts. Pharmacokinetic parameters will be reviewed from at least 4 active subjects from preceding dose before dose escalating to the next dose level. The maximum dose administered will be 50 mg BID. Additional subjects/Cohorts may be enrolled.
GSK1325756 Immediate Release 50 mgEXPERIMENTALAdministered to volunteers in the fasted and fed states
GSK1325756 Bioenhanced Formulation 1 50 mgEXPERIMENTALAdministered to volunteers in the fasted and/or fed states
GSK1325756 Bioenhanced Formulation 2 50 mgEXPERIMENTALAdministered to volunteers in the fasted and/or fed states
PlaceboPLACEBO_COMPARATORPart A - Cohort 1 subjects will be administered GSK1325756 matching placebo tablets twice daily following a light meal for one day in accordance with the randomization schedule.
GSK1325756 200 mgEXPERIMENTALPart A - Cohort 1 subjects will be administered GSK1325756 200 mg immediate release tablets twice daily following a light meal for one day in accordance with the randomization schedule.
GSK1325756 50 mgEXPERIMENTALPart A - Cohort 1 subjects will be administered GSK1325756 50 mg immediate release tablets twice daily following a light meal for one day in accordance with the randomization schedule.
GSK1325756 100 mgEXPERIMENTALPart B - Cohort 2 subjects will be administered GSK1325756 100 mg following a light meal (Fed) or in the fasted state twice daily for one day in accordance with the randomization schedule.
Cohort 1-PK and and safety of GSK1325756 in subjects 40-64yEXPERIMENTALThis arm assesses the pharmacokinetics and safety of a single oral ose of 100mg of GSK1325756 administered to subjects in the age range 40y-64y when administered in the fasted state, in the presence of a high-fat meal and in the presence of a proton-pump inhibitor.
Cohort 2- PK and safety of GSK1325756 in subjects aged 65y-80yEXPERIMENTALThis arm assesses the pharmacokinetics and safety of a single dose of 100mg of GSK1325756 administered to a group of subjects in the 64y-80y age range in the fasted state
COHORT 1EXPERIMENTALInterlocking design with Cohort 2. Single dose; treatment period over 2 days such that two subjects will receive GSK1325756 and at least one subject will receive placebo on Day 1. The remaining subjects will be dosed on day 2 of each treatment period assuming adequate safety from Day 1. Placebo and an escalation of GSK1325756 from 10mg, to 50mg, and 200mg, will be administered over the 6 week long treatment period allowing adequate washout period between doses.
COHORT 2EXPERIMENTALInterlocking design with Cohort 1. Single dose; treatment period over 2 days such that two subjects will receive GSK1325756 and at least one subject will receive placebo on Day 1. The remaining subjects will be dosed on day 2 of each treatment period assuming adequate safety from Day 1. Placebo and an escalation of GSK1325756 from 25mg, to 100mg, and 400mg, will be administered over the 6 week long treatment period allowing adequate washout period between doses.
COHORT 3EXPERIMENTALPlacebo controlled, 14-day, once daily, repeat-dose evaluation with one selected dose of GSK1325756 in 14 subjects. Dose selection based on review of safety and tolerability data from cohorts 1 and 2.
COHORT 4EXPERIMENTALPlacebo controlled, 14-day, once daily, repeat-dose evaluation with a higher selected dose of GSK1325756 in 14 subjects. Dose selection based on review of safety and tolerability data from cohort 3.

Interventions

NameTypeDescription
GSK1325756 (Danirixin)DRUGIt will be supplied as capsule shaped white film coated tablet containing 75 mg GSK1325756 for oral use
Placebo To Match GSK1325756DRUGIt will be supplied as capsule shaped white film coated placebo tablet for oral use
Oseltamivir PhosphateDRUGIt will be supplied as size 0 Swedish Orange capsule containing 75 mg Oseltamivir phosphate and overfill of pre-gelatinized starch for oral use
Placebo To Match Oseltamivir PhosphateDRUGIt will be supplied as size 0 Swedish Orange capsule containing pre-gelatinized starch and magnesium stearate for oral use
GSK1325756 SolutionDRUGSolution containing 2 mg/mL GSK1325756 in sterile water for injection, to be administered intravenously.
GSK1325756 Solution Matching PlaceboDRUGSolution containing sterile water for injection matching GSK1325756 solution, to be administered intravenously.
GSK1325756 TabletDRUGA white film coated tablet containing 50 mg GSK1325756 to be administered orally.
GSK1325756 Tablet Matching PlaceboDRUGA white film coated tablet matching GSK1325756 tablet, to be administered orally.
GSK1325756DRUGCXCR2 antagonist
Placebo tabletDRUGPlacebo will be available as white film coated GSK1325756 matching tablet which will be administered twice daily by oral route with 240 milliliters of water.
PlaceboOTHERPlacebo will be orally administered to at least 4 subjects in each treatment period of each cohort. In each sequence in each cohort, all subjects will receive one dose of placebo.
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Eligibility Criteria

Age Range18 Years to 64 Years
SexALL
Healthy VolunteersNo
Study Sites33

Inclusion Criteria: * Between 18 and 64 years of age inclusive, at the time of signing the informed consent; * Onset of influenza-like illness symptoms within 48 hours prior to study enrollment. Onset of symptoms is defined as the time when the subject's temperature was measured as elevated (\>=38....

Countries:United StatesAustraliaSouth AfricaUnited Kingdom
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Frequently asked questions about GSK1325756

What is GSK1325756 used for?

GSK1325756 is an investigational small molecule being developed by GSK plc for infectious disease indications, including virus diseases, infections, respiratory tract conditions, and chronic obstructive pulmonary disease. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

Who makes GSK1325756?

GSK1325756 is being developed by GSK plc, a global biopharma company listed on the London Stock Exchange under the ticker GSK. The drug is in Phase 1 clinical development for infectious disease indications.

What phase is GSK1325756 in?

GSK1325756 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. All three completed clinical trials for GSK1325756 were Phase 1 studies.

What clinical trials is GSK1325756 in?

GSK1325756 has completed three Phase 1 clinical trials: NCT01209052, a first-time-in-human study in healthy male volunteers; NCT01209104, a pharmacokinetics and safety study in elderly and adult subjects; and NCT01267006, a blood levels and effects study in healthy adults aged 40 to 80 years.

Is GSK1325756 the same as any other drug?

No alternative names for GSK1325756 have been disclosed in the available clinical trial information. The drug is identified solely by its compound number GSK1325756 in all registered studies.