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GSK4528287

Phase 1

Colitis, Ulcerative | Small molecule | Gastrointestinal |GSK plc|Last Updated: Apr 6, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment48

FDA Designations

No designations recorded

Clinical trial landscape

GSK4528287 · 1 trial · 1 indication

Phase 1 1
NCT06681181A First-time in Human (FTIH) Study to Evaluate Safety, Tolerability, Pharmacokinetics and Target Engagement of GSK4528287 in Healthy ParticipantsColitis, Ulcerative
ACTIVE NOT_RECRUITING48 Analytics
PHASE1ACTIVE NOT_RECRUITING
A First-time in Human (FTIH) Study to Evaluate Safety, Tolerability, Pharmacokinetics and Target Engagement of GSK4528287 in Healthy Participants
Colitis, UlcerativeUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Adverse Events (AE)
Up to Day 351 (End of follow up period)

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.

Number of Participants with Serious Adverse Events (SAE)
Up to Day 351 (End of follow up period)

An SAE is defined as any untoward medical occurrence that, at any dose, meets one or more of the criteria: Results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant.

Number of Participants with Clinically Significant Changes in Laboratory Values
Up to Day 351 (End of follow up period)

Number of participants with clinically significant changes in laboratory values (hematology, chemistry, urinalysis, and virology) will be assessed.

Number of Participants with Clinically Significant Changes in Vital Signs
Up to Day 351 (End of follow up period)

Number of participants with clinically significant changes in vital signs will be assessed.

Number of Participants with Clinically Significant Changes in Telemetry
On Day 1

Number of participants with clinically significant changes in telemetry will be assessed.

Number of Participants with Clinically Significant Changes in 12 lead Electrocardiogram (ECG)
Up to Day 351 (End of follow up period)

Number of participants with clinically significant changes in 12 lead ECG will be assessed.

Secondary Endpoints

Area under concentration-time curve (AUC) of GSK4528287
Up to Day 337
Maximum concentration (Cmax) of GSK4528287
Up to Day 337
Time to maximum concentration (Tmax) of GSK4528287
Up to Day 337
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1: Dose 1EXPERIMENTALParticipants will be administered Dose 1 of GSK4528287.
Cohort 2: Dose 2EXPERIMENTALParticipants will be administered Dose 2 of GSK4528287.
Cohort 3: Dose 3EXPERIMENTALParticipants will be administered Dose 3 of GSK4528287.
Cohort 4: Dose 4EXPERIMENTALParticipants will be administered Dose 4 of GSK4528287.
Cohort 5: Dose 5EXPERIMENTALParticipants will be administered Dose 5 of GSK4528287.
Cohort 6: Dose 6EXPERIMENTALParticipants will be administered Dose 6 of GSK4528287.
PlaceboPLACEBO_COMPARATORParticipants will receive Placebo.

Interventions

NameTypeDescription
GSK4528287DRUGGSK4528287 will be administered.
PlaceboDRUGPlacebo will be administered.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring * White blood cell greater than or equal to (\>=) lower limit of normal (LLN), including both lymphocyte counts \>...

Countries:United Kingdom
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Recent Changes (Last 90 Days)

MEDIUMMay 26, 2026NCT06681181Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWMay 24, 2026NCT06681181studyFirstPostDate: changed

Frequently asked questions about GSK4528287

What is GSK4528287 used for?

GSK4528287 is an investigational small molecule being developed for ulcerative colitis, a form of inflammatory bowel disease. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities. The drug is being studied for its potential to treat this gastrointestinal condition.

Who makes GSK4528287?

GSK4528287 is being developed by GSK plc, a global biopharmaceutical company listed on the stock exchange under the ticker GSK. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational drug for ulcerative colitis.

What phase is GSK4528287 in?

GSK4528287 is in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory agencies. The Phase 1 trial is designed to assess safety, tolerability, pharmacokinetics, and target engagement in healthy participants.

What clinical trials is GSK4528287 in?

GSK4528287 is being studied in a Phase 1 first-time-in-human trial with the identifier NCT06681181. This randomized, double-blind, placebo-controlled study is evaluating the drug in 48 healthy participants in the United Kingdom. The trial is currently active but not recruiting participants.

How does GSK4528287 work?

The specific molecular target of GSK4528287 has not been disclosed in available information. As a small molecule being developed for ulcerative colitis, it is believed to interact with pathways involved in the inflammatory process, but the exact mechanism of action remains under investigation in clinical trials.