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GSK3439171A

Phase 1

Muscular Dystrophies | Small molecule | Other |GSK plc|Last Updated: Jul 10, 2020

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment66
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03627494First Time in Human (FTIH) Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of Single and Repeat Doses of GSK3439171A in Healthy Subjects and to Assess Food EffectPHASE1 COMPLETED 66Aug 30, 2018Aug 26, 2019Jul 10, 20201 United States
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Study Endpoints
Primary Endpoints
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)-Part A
Up to Day 40

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. 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; other important medical events that may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed before.

Number of Participants With AEs and SAEs-Part B
Up to Day 34

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. 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; other important medical events that may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed before.

Number of Participants With AEs and SAEs-Part C
Up to Day 29

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. 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; other important medical events that may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed before.

Number of Participants With Clinical Chemistry Abnormalities of Potential Clinical Importance-Part A
Up to Day 40

Blood samples were collected for the assessment of clinical chemistry parameters. The clinical concern range for the parameters were: albumin (low: \<30 grams per liter \[g/L\]); alanine aminotransferase (ALT) (high: \>=2xupper limit of normal \[ULN\]); aspartate aminotransferase (AST) (high: \>=2xULN); alkaline phosphatase (ALP) (high: \>=2xULN); total bilirubin (high: \>=1.5xULN); calcium (low: \<2 millimoles (mmol)/L and high: \>2.75 mmol/L); creatinine (high: change from Baseline \>44.2 micromoles/L); glucose (low: \<3 mmol/L and high: \>9 mmol/L); magnesium (low: 0.5 mmol/L and high: 1.23 mmol/L); phosphorus (low: 0.8 mmol/L and high: 1.6 mmol/L); potassium (low: \<3 mmol/L and high: \>5.5 mmol/L); sodium (low: \<130 mmol/L and high: \>150 mmol/L) and creatine kinase (high: \>500 units per liter). The number of participants with any clinical chemistry abnormality of potential clinical importance is reported.

Number of Participants With Clinical Chemistry Abnormalities of Potential Clinical Importance-Part B
Up to Day 34

Blood samples were collected for the assessment of clinical chemistry parameters. The clinical concern range for the parameters were: albumin (low: \<30 g/L); ALT (high: \>=2xULN); AST (high: \>=2xULN); ALP (high: \>=2xULN); total bilirubin (high: \>=1.5xULN); calcium (low: \<2 mmol/L and high: \>2.75 mmol/L); creatinine (high: change from Baseline \>44.2 micromoles/L); glucose (low: \<3 mmol/L and high: \>9 mmol/L); magnesium (low: 0.5 mmol/L and high: 1.23 mmol/L); phosphorus (low: 0.8 mmol/L and high: 1.6 mmol/L); potassium (low: \<3 mmol/L and high: \>5.5 mmol/L); sodium (low: \<130 mmol/L and high: \>150 mmol/L) and creatine kinase (high: \>500 units per liter). The number of participants with any clinical chemistry abnormality of potential clinical importance is reported.

Number of Participants With Clinical Chemistry Abnormalities of Potential Clinical Importance-Part C
Up to Day 29

Blood samples were collected for the assessment of clinical chemistry parameters. The clinical concern range for the parameters were: albumin (low: \<30 g/L); ALT (high: \>=2xULN); AST (high: \>=2xULN); ALP (high: \>=2xULN); total bilirubin (high: \>=1.5xULN); calcium (low: \<2 mmol/L and high: \>2.75 mmol/L); creatinine (high: change from Baseline \>44.2 micromoles/L); glucose (low: \<3 mmol/L and high: \>9 mmol/L); magnesium (low: 0.5 mmol/L and high: 1.23 mmol/L); phosphorus (low: 0.8 mmol/L and high: 1.6 mmol/L); potassium (low: \<3 mmol/L and high: \>5.5 mmol/L); sodium (low: \<130 mmol/L and high: \>150 mmol/L) and creatine kinase (high: \>500 units per liter). The number of participants with any clinical chemistry abnormality of potential clinical importance is reported.

Number of Participants With Hematology Abnormalities of Potential Clinical Importance-Part A
Up to Day 40

Blood samples were collected for the assessment of hematology parameters. The clinical concern range for the parameters were: hematocrit (high: \>0.54 proportion of red blood cells in blood); hemoglobin (high: \>180 g/L), lymphocytes (low: \<0.8x10\^9 cells per liter \[cells/L\]); neutrophil count (low: \<1.5x10\^9 cells/L); platelet count (low: \<100x10\^9 cells/L and high: \>550x10\^9 cells/L); white blood cells count (low: \<3x10\^9 cells/L and high: \>20x10\^9 cells/L). The number of participants with any hematology abnormality of potential clinical importance is reported.

Number of Participants With Hematology Abnormalities of Potential Clinical Importance-Part B
Up to Day 34

Blood samples were collected for the assessment of hematology parameters. The clinical concern range for the parameters were: hematocrit (high: \>0.54 proportion of red blood cells in blood); hemoglobin (high: \>180 g/L), lymphocytes (low: \<0.8x10\^9 cells/L); neutrophil count (low: \<1.5x10\^9 cells/L); platelet count (low: \<100x10\^9 cells/L and high: \>550x10\^9 cells/L); white blood cells count (low: \<3x10\^9 cells/L and high: \>20x10\^9 cells/L). The number of participants with any hematology abnormality of potential clinical importance is reported.

Number of Participants With Hematology Abnormalities of Potential Clinical Importance-Part C
Up to Day 29

Blood samples were collected for the assessment of hematology parameters. The clinical concern range for the parameters were: hematocrit (high: \>0.54 proportion of red blood cells in blood); hemoglobin (high: \>180 g/L), lymphocytes (low: \<0.8x10\^9 cells/L); neutrophil count (low: \<1.5x10\^9 cells/L); platelet count (low: \<100x10\^9 cells/L and high: \>550x10\^9 cells/L); white blood cells count (low: \<3x10\^9 cells/L and high: \>20x10\^9 cells/L). The number of participants with any hematology abnormality of potential clinical importance is reported.

Number of Participants With Abnormal Urinalysis Dipstick Results-Part A
8 hours, 24 hours, 48 hours and 72 hours in Periods 1, 2 and 3

Urine samples were taken for the assessment of following urine parameters: glucose, ketones, occult blood (OB) and protein by dipstick method. The dipstick test gives results in a semi-quantitative manner, and results can be read as Trace, 1+, 2+ indicating proportional concentrations in the urine sample.

Number of Participants With Urinalysis Dipstick Results for Potential of Hydrogen (pH)-Part A
8 hours, 24 hours, 48 hours and 72 hours in Periods 1, 2 and 3

Urine samples were taken for the assessment of urine pH. Urine pH is an acid-base measurement. pH is measured on a numeric scale ranging from 0 to 14; values on the scale refer to the degree of alkalinity or acidity. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Normal urine has a slightly acid pH (5.0 to 6.0). Dipstick test results for pH were presented as number of participants having pH value as 5, 6, 7, 8 or 9.

Number of Participants With Abnormal Urinalysis Dipstick Results-Part B
Day 2 (24 hours); Day 3 (48 hours); Days 4, 13 and 20 (72 hours); pre-dose on Days 7, 10, 11 and 17

Urine samples were taken for the assessment of following urine parameters: glucose, ketones, OB and protein by dipstick method. The dipstick test gives results in a semi-quantitative manner, and results can be read as Trace, 1+, 2+ indicating proportional concentrations in the urine sample.

Number of Participants With Urinalysis Dipstick Results (pH)-Part B
Day 2 (24 hours); Day 3 (48 hours); Days 4, 13 and 20 (72 hours); pre-dose on Days 7, 10, 11 and 17

Urine samples were taken for the assessment of urine pH. Urine pH is an acid-base measurement. pH is measured on a numeric scale ranging from 0 to 14; values on the scale refer to the degree of alkalinity or acidity. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Normal urine has a slightly acid pH (5.0 to 6.0). Dipstick test results for pH were presented as number of participants having pH value as 5, 6, 7, 8 or 9.

Number of Participants With Abnormal Urinalysis Dipstick Results-Part C
8 hours, 24 hours, 48 hours and 72 hours in Period 1 and Period 2

Urine samples were taken for the assessment of following urine parameters: glucose, ketones, OB and protein by dipstick method. The dipstick test gives results in a semi-quantitative manner, and results can be read as Trace, 1+, 2+ indicating proportional concentrations in the urine sample.

Number of Participants With Urinalysis Dipstick Results (pH)-Part C
8 hours, 24 hours, 48 hours and 72 hours in Period 1 and Period 2

Urine samples were taken for the assessment of urine pH. Urine pH is an acid-base measurement. pH is measured on a numeric scale ranging from 0 to 14; values on the scale refer to the degree of alkalinity or acidity. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Normal urine has a slightly acid pH (5.0 to 6.0). Dipstick test results for pH were presented as number of participants having pH value as 5, 6, 7, 8 or 9.

Number of Participants With Vital Signs of Potential Clinical Importance-Part A
Up to Day 40

Vital signs were measured in a supine position after five minutes of rest and included temperature, systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate and respiratory rate. The clinical concern range for the parameters included: SBP (low: \<85 millimeters of mercury \[mmHg\] and high: \>160 mmHg), DBP (low: \<45 mmHg and high: \>100 mmHg) and heart rate (low: \<40 beats per minute \[bpm\] and high: \>110 bpm). Number of participants with any vital signs of potential clinical importance is reported.

Number of Participants With Vital Signs of Potential Clinical Importance-Part B
Up to Day 34

Vital signs were measured in a supine position after five minutes of rest and included temperature, SBP, DBP, heart rate and respiratory rate. The clinical concern range for the parameters included: SBP (low: \<85 mmHg and high: \>160 mmHg), DBP (low: \<45 mmHg and high: \>100 mmHg) and heart rate (low: \<40 bpm and high: \>110 bpm). Number of participants with any vital signs of potential clinical importance is reported.

Number of Participants With Vital Signs of Potential Clinical Importance-Part C
Up to Day 29

Vital signs were measured in a supine position after five minutes of rest and included temperature, SBP, DBP, heart rate and respiratory rate. The clinical concern range for the parameters included: SBP (low: \<85 mmHg and high: \>160 mmHg), DBP (low: \<45 mmHg and high: \>100 mmHg) and heart rate (low: \<40 bpm and high: \>110 bpm). Number of participants with any vital signs of potential clinical importance is reported.

Number of Participants With Abnormal Electrocardiogram (ECG) Findings-Part A
Up to Day 40

Twelve-lead ECGs were recorded with the participants in a supine position using an ECG machine that automatically calculated heart rate and measured PR, QRS, QT and corrected QT (QTc) intervals. Clinically significant (CS) and not clinically significant (NCS) abnormal ECG findings have been presented. CS abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. Data for worst case post-Baseline is presented. Baseline value is the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Number of Participants With Abnormal ECG Findings-Part B
Up to Day 34

Twelve-lead ECGs were recorded with the participants in a supine position using an ECG machine that automatically calculated heart rate and measured PR, QRS, QT and QTc intervals. CS and NCS abnormal ECG findings have been presented. CS abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. Data for worst case post-Baseline is presented. Baseline value is the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Number of Participants With Abnormal ECG Findings-Part C
Up to Day 29

Twelve-lead ECGs were recorded with the participants in a supine position using an ECG machine that automatically calculated heart rate and measured PR, QRS, QT and QTc intervals. CS and NCS abnormal ECG findings have been presented. CS abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. Data for worst case post-Baseline is presented. Baseline value is the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Area Under Tha Plasma Drug Concentration Versus Time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0 to t]) of GSK3439171A Following Single Dose-Part A (GSK3439171A 5 mg Only)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36 and 48 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to t) of GSK3439171A Following Single Dose-Part A (GSK3439171A 10 mg, 30 mg, 60 mg, 120 mg and 180 mg)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to t) of GSK3439171A Following Single Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to t) of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 17 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to t) of GSK3439171A Following Single Dose-Part B (GSK3439171A 40 mg Only)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to t) of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 40 mg Only)
Day 10 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Area Under the Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC[0 to Inf]) of GSK3439171A Following Single Dose-Part A (GSK3439171A 5 mg Only)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36 and 48 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to Inf) of GSK3439171A Following Single Dose-Part A (GSK3439171A 10 mg, 30 mg, 60 mg, 120 mg and 180 mg)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to Inf) of GSK3439171A Following Single Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to Inf) of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 17 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to Inf) of GSK3439171A Following Single Dose-Part B (GSK3439171A 40 mg Only)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

AUC(0 to Inf) of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 40 mg Only)
Day 10 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Maximum Observed Plasma Concentration (Cmax) of GSK3439171A Following Single Dose-Part A (GSK3439171A 5 mg Only)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36 and 48 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Cmax of GSK3439171A Following Single Dose-Part A (GSK3439171A 10 mg, 30 mg, 60 mg, 120 mg and 180 mg)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Cmax of GSK3439171A Following Single Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Cmax of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 17 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Cmax of GSK3439171A Following Single Dose-Part B (GSK3439171A 40 mg Only)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Cmax of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 40 mg Only)
Day 10 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time to Maximum Observed Plasma Concentration (Tmax) of GSK3439171A Following Single Dose-Part A (GSK3439171A 5 mg Only)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36 and 48 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Tmax of GSK3439171A Following Single Dose-Part A (GSK3439171A 10 mg, 30 mg, 60 mg, 120 mg and 180 mg)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Tmax of GSK3439171A Following Single Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Tmax of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 17 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Tmax of GSK3439171A Following Single Dose-Part B (GSK3439171A 40 mg Only)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Tmax of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 40 mg Only)
Day 10 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Apparent Terminal Half-life (T1/2) of GSK3439171A Following Single Dose-Part A (GSK3439171A 5 mg Only)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36 and 48 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

T1/2 of GSK3439171A Following Single Dose-Part A (GSK3439171A 10 mg, 30 mg, 60 mg, 120 mg and 180 mg)
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

T1/2 of GSK3439171A Following Single Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

T1/2 of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 5 mg and 11 mg)
Day 17 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

T1/2 of GSK3439171A Following Single Dose-Part B (GSK3439171A 40 mg Only)
Day 1 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

T1/2 of GSK3439171A Following Repeat Dose-Part B (GSK3439171A 40 mg Only)
Day 10 (pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose)

Blood samples were collected at indicated time points for pharmacokinetic analysis. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Secondary Endpoints
AUC(0 to t) of GSK3439171A (Food Effect)-Part C
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose
AUC(0 to Inf) of GSK3439171A (Food Effect)-Part C
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose
Cmax for GSK3439171A (Food Effect)-Part C
pre-dose, 0.083, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 60 and 72 hours post-dose
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelCROSSOVER
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part A: P1,PBO/GSK3439171A Dose 2/GSK3439171A Dose 3EXPERIMENTALSubjects will administer oral solution with doses 0.5 milligram (mg) up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence placebo (PBO) followed by Dose 2 of GSK3439171A followed by Dose 3 of GSK3439171A in period 1 (P1). There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P1, GSK3439171A Dose 1/ PBO/GSK3439171A Dose 3EXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and PBO as per randomized sequence: Dose 1 of GSK3439171A followed by PBO followed by Dose 3 of GSK3439171A in P1. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P1, GSK3439171A Dose 1/ GSK3439171A Dose 2/ PBOEXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: Dose 1 of GSK3439171A followed by Dose 2 of GSK3439171A followed by PBO in P1. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P2, PBO/GSK3439171A Dose 5/GSK3439171A Dose 6EXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: PBO followed by Dose 5 of GSK3439171A followed by Dose 6 of GSK3439171A in period 2 (P2). There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P2, GSK3439171A Dose 4/ PBO/GSK3439171A Dose 6EXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: Dose 4 of GSK3439171A followed by PBO followed by Dose 6 of GSK3439171A in P2. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P2, GSK3439171A Dose 4/ GSK3439171A Dose 5/ PBOEXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: Dose 4 of GSK3439171A followed by Dose 5 of GSK3439171A followed by PBO in P2. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P3, PBO/GSK3439171A Dose 8/GSK3439171A Dose 9EXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: PBO followed by Dose 8 of GSK3439171A followed by Dose 9 of GSK3439171A in Period 3 (P3). There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P3, GSK3439171A Dose 7/ PBO/GSK3439171A Dose 9EXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: Dose 7 of GSK3439171A followed by PBO followed by Dose 9 of GSK3439171A in P3. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part A: P3, GSK3439171A Dose 7/ GSK3439171A Dose 8/ PBOEXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A and placebo as per randomized sequence: Dose 7 of GSK3439171A followed by Dose 8 of GSK3439171A followed by PBO in P3. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part B: GSK3439171AEXPERIMENTALSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of GSK3439171A in part B
Part B: PlaceboPLACEBO_COMPARATORSubjects will administer oral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards of Placebo in part B
Part C: GSK3439171A fed followed by GSK3439171A fastedEXPERIMENTALSubjects will administer GSK3439171A in Fed condition in Part C P1 followed by GSK3439171A in fasted condition in Part C P2. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Part C: GSK3439171A fasted followed by GSK3439171A fedEXPERIMENTALSubjects will administer GSK3439171A in fasted condition in Part C P1 followed by GSK3439171A in fed condition in Part C P2. There will be a washout period of 7 days or 5 half-lives, whichever is longer in between the doses.
Interventions
NameTypeDescription
GSK3439171ADRUGOral solution with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards
PlaceboDRUGPlacebo oral solution to match with doses 0.5 mg up to 4.5 mg and capsule for doses 5 mg and upwards
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Eligibility Criteria
Age Range18 Years — 65 Years
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Subject must be 18 to 65 years of age inclusive, at the time of signing the informed consent. * Subjects who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring. A subject with a clin...

Countries:United States
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