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GSK3858279

Phase 1

Pain | Small molecule | Pain |GSK plc|Last Updated: May 15, 2025

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 Enrollment33
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05174013Safety, Tolerability, Pharmacokinetics and Target Engagement of GSK3858279 in Healthy Caucasian, Chinese and Japanese ParticipantsPHASE1 COMPLETED 33Feb 14, 2022Apr 17, 2023May 15, 20252 Australia
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Study Endpoints
Primary Endpoints
Number Of Participants With Adverse Events (AEs), Serious Adverse Events (SAE's) And Withdrawals Due to AE's
Up to 169 days

An AE is defined as 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. SAEs are defined as any untoward medical occurrence that, at any dose: results in death, cause life threatening events which requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability or incapacity and birth defect or congenital anomaly. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169.

Change From Baseline in Hematology Parameter of Platelet Count
Baseline and Day 169

Blood samples were collected for the assessment of change from baseline in hematology parameter platelet count. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Hematology Parameter of Hemoglobin
Baseline and Day 169

Blood samples were collected for the assessment of change from baseline in hematology parameters Hemoglobin. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Hematology Parameter of Hematocrit
Baseline and Day 169

Blood samples were collected for the assessment of change from baseline in hematology parameters Hematocrit. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in White Blood Cell (Wbc) Count With Differential i.e. Neutrophils, Lymphocytes, Monocytes, Eosinophils and Basophils
Baseline and Day 169

Blood samples were collected for the assessment of hematology parameters including (WBC) count with differential i.e. Neutrophils, Lymphocytes, Monocytes, Eosinophils and Basophils. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Clinical Chemistry Parameter of Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), Alkaline Phosphatase (AP)
Baseline and Day 169

Blood samples were collected for the assessment of clinical chemistry parameters including AST, ALT, AP. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Clinical Chemistry Parameter of Total Protein
Baseline and Day 169

Blood samples were collected for the assessment of clinical chemistry parameters including total Protein. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Clinical Chemistry Parameter of Total Bilirubin
Baseline and Day 169

Blood samples were collected for the assessment of clinical chemistry parameters including Total bilirubin. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Clinical Chemistry Parameter of Direct Bilirubin, Creatinine
Baseline and Day 169

Blood samples were collected for the assessment of clinical chemistry parameters including Direct bilirubin, Creatinine. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Clinical Chemistry Parameter of Urea, Glucose, Potassium, Sodium
Baseline and Day 169

Blood samples were collected for the assessment of clinical chemistry parameters including Urea, Glucose, Potassium, Sodium. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Number of Participants With Change From Baseline in Urinalysis Parameter: Urine Specific Gravity (Ratio of Urine Density to Water Density)
Baseline and Day 169

Urine samples were collected to analyze the urinalysis parameter: specific gravity. Urine specific gravity is a measure of the concentration of solutes in the urine and provides information on the kidney's ability to concentrate urine, indicated as ratio of urine density to water density. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Baseline was defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated as post-dose visit value minus the Baseline value.

Number of Participants With Change From Baseline in Urinalysis Parameter: Urine Potential of Hydrogen (pH)
Baseline and Day 169

Urine samples were collected to analyze the urinalysis parameter: 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 acidic pH (5.0 - 6.0). The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Baseline was defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated as post-dose visit value minus the Baseline value.

Number of Participants With Abnormal Urinalysis Results by Dipstick Method
Baseline and Day 169

The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters can be read as increase to trace, increase to 1+ (low concentrations present), increase to 2+ (moderate concentrations present) and increase to 3+ (high concentrations present) indicating proportional concentrations in the urine sample. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Baseline was defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Data for worst-case post-Baseline relative to Baseline is presented.

Change From Baseline in Vital Signs: Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)
Baseline and Day 169

The vital sign followed in this analysis was both systolic and diastolic blood pressure, expressed as millimetre of mercury. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Vital Signs: Pulse Rate
Baseline and Day 169

The vital signs followed in this analysis was pulse rate, expressed as beats per minute. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Vital Signs: Body Temperature
Baseline and Day 169

The vital sign followed in this analysis was body temperature, expressed as degree Celsius. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Vital Signs: Respiratory Rate
Baseline and Day 169

The vital signs followed in this analysis was respiratory rate, expressed as Breaths per minute. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Change from Baseline was defined as value at the indicated time point minus Baseline value.

Change From Baseline in Electrocardiogram (ECG) Parameters: PR Interval, QRS Duration, QT Interval and QT Interval Corrected for Heart Rate According to Fridericia's Formula (QTcF) Interval
Baseline and Day 169

Twelve-lead ECG were obtained to measure PR Interval, QRS Duration, QT Interval, QTcF Interval and QTcB Interval. Twelve-lead ECGs were performed with the participant in a supine or semi-supine position after a rest of at least 10 minutes. The final follow-up visit was on Day 169 for participants in the Caucasian cohort and on Day 113 for Chinese and Japanese participants respectively (NB: Japanese and Chinese participants had an option to remain in the study until Day 169). Baseline was defined as the average of the triplicate pre-dose assessments on Day 1 of Period 2. Change from Baseline was calculated by subtracting the post-dose visit value from the Baseline value.

Area Under the Plasma Concentration-Time Curve From Time Zero to 56 Days AUC (0-56)] of GSK3858279
Predose, 6 Hour (h), 12 h, 24 h, 36 h, 48 h (post dose till Day 3), Day 8, 15, 22, 29, 43 and 57

Blood samples were collected from participants at indicated time points after the administration of study treatment to investigate pharmacokinetic (PK) parameters. PK parameter population consist of all participants in the PK Population, for whom valid and evaluable PK parameters were derived. This population was used in the assessment and characterization of PK parameters.

AUC From Time Zero to the Last Measurable Concentration (0-t) Post-Dose of GSK3858279
Predose, 6 Hour (h), 12 h, 24 h, 36 h, 48 h (post dose till Day 3), Day 8, 15, 22, 29, 43, 57, 85, 113, 141, 155 and 169 Days

Blood samples were collected from participants at indicated time points after the administration of study treatment to investigate pharmacokinetic (PK) parameters. PK parameter population consist of all participants in the PK Population, for whom valid and evaluable PK parameters were derived. This population was used in the assessment and characterization of PK parameters.

Time of Occurrence of Last Quantifiable Concentration (Tlast) of GSK3858279
Predose, 6 Hour (h), 12 h, 24 h, 36 h, 48 h (post dose till Day 3), Day 8, 15, 22, 29, 43, 57, 85, 113, 141, 155 and 169 Days

Blood samples were collected from participants at indicated time points after the administration of study treatment to investigate PK parameters.

Maximum Observed Concentration (Cmax) of GSK3858279
Predose, 6 Hour (h), 12 h, 24 h, 36 h, 48 h (post dose till Day 3), Day 8, 15, 22, 29, 43, 57, 85, 113, 141, 155 and 169 Days

Blood samples were collected from participants at indicated time points after the administration of study treatment to investigate PK parameters.

Time of Occurrence of Cmax (Tmax) of GSK3858279
Predose, 6 Hour (h), 12 h, 24 h, 36 h, 48 h (post dose till Day 3), Day 8, 15, 22, 29, 43, 57, 85, 113, 141, 155 and 169 Days

Blood samples were collected from participants at indicated time points after the administration of study treatment to investigate PK parameters.

Secondary Endpoints
Percentage Change From Baseline in Free CCL17
Baseline (Day 1) and at Days 7, 14, 28 and 56 Post dose
Cmax of Total CCL17 in Serum Following GSK3858279
Baseline (Day 1) and at Days 7, 14, 28 and 56 Post dose
Tmax of Total CCL17 in Serum Following GSK3858279
Baseline (Day 1) and at Days 7, 14, 28 and 56 Post dose
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
GSK3858279 CaucasianEXPERIMENTALParticipants received 240 milligrams (mg) of GSK3858279 administered as separate subcutaneous (SC) injection to healthy Caucasian participants.
GSK3858279 ChineseEXPERIMENTALParticipants received 240 mg of GSK3858279 administered as separate SC injection to healthy Chinese participants.
GSK3858279 JapaneseEXPERIMENTALParticipants received 240 mg of GSK3858279 administered as separate SC injection to healthy Japanese participants.
Caucasian PlaceboPLACEBO_COMPARATORParticipants received single dose of Placebo administered as separate SC injection to healthy Caucasian participants.
Chinese PlaceboPLACEBO_COMPARATORParticipants received Single dose of Placebo administered as separate SC injection to healthy Chinese participants.
Japanese PlaceboPLACEBO_COMPARATORParticipants received Single dose of Placebo administered as separate SC injection to healthy Japanese participants.
Interventions
NameTypeDescription
GSK3858279DRUGGSK3858279 will be administered
PlaceboDRUGPlacebo will be administered
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Eligibility Criteria
Age Range20 Years — 65 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: * Participants between 20 and 65 years of age inclusive, at the time of signing the informed consent. * Volunteers who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring. * Participant...

Countries:Australia
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