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GSK4527363

Phase 1

Systemic Lupus Erythematosus | Small molecule | Immunology |GSK plc|Last Updated: Jun 22, 2026

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment142

FDA Designations

No designations recorded

Clinical trial landscape

GSK4527363 · 1 trial · 1 indication

Phase 1 1
NCT06576271A Study of GSK4527363 in Healthy Participants, Systemic Lupus Erythematosus (SLE) Participants, Healthy Chinese, and Japanese Participants and CTD-ILD ParticipantsSystemic Lupus Erythematosus
RECRUITING142 Analytics
PHASE1RECRUITING
A Study of GSK4527363 in Healthy Participants, Systemic Lupus Erythematosus (SLE) Participants, Healthy Chinese, and Japanese Participants and CTD-ILD Participants
Systemic Lupus ErythematosusUnlock trial analytics

Study Endpoints

Primary Endpoints

Parts A and C: Number of Participants with Non-serious Adverse Events and Serious Adverse Events
Up to Week 52
Parts B and D: Number of Participants with Non-serious Adverse Events and Serious Adverse Events
Up to Week 68
Parts A and C: Number of Participants with Clinically Significant Changes in Physical Examination, Laboratory Parameters, Vital Signs, and 12 lead Electrocardiogram (ECG) Findings
Up to Week 52
Parts B and D: Number of Participants with Clinically Significant Changes in Physical Examination, Laboratory Parameters, Vital Signs, and 12 lead Electrocardiogram (ECG) Findings
Up to Week 68
Parts A and C: Number of Participants with Clinically Significant Changes in Columbia-Suicide Severity Rating Scale (C-SSRS)
Up to Week 52

The C-SSRS is an assessment tool that evaluates suicidal ideation and behavior. A suicidal ideation score will be calculated based on the maximum suicidal ideation category ranging from 1 to 5. Higher score indicates more suicidal ideation. A clinically important change in the C-SSRS is defined as a total score \>0.

Parts B, and D: Number of Participants with Clinically Significant Changes in Columbia-Suicide Severity Rating Scale (C-SSRS)
Up to Week 68

The C-SSRS is an assessment tool that evaluates suicidal ideation and behavior. A suicidal ideation score will be calculated based on the maximum suicidal ideation category ranging from 1 to 5. Higher score indicates more suicidal ideation. A clinically important change in the C-SSRS is defined as a total score \>0.

Secondary Endpoints

Parts A and C: Area Under the Concentration-time Curve to the Last Quantifiable Concentration (AUC[0-t]) of GSK4527363
Up to Week 52
Parts A and C: Area Under the Concentration-time Curve to Infinity (AUC[0-inf]) of GSK4527363
Up to Week 52
Parts A and C: Maximum Plasma Concentration (Cmax) of GSK4527363
Up to Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A: Healthy participants receiving GSK4527363EXPERIMENTAL -
Part A: Healthy participants receiving placebo matching GSK4527363PLACEBO_COMPARATOR -
Part A: Healthy participants receiving belimumabEXPERIMENTAL -
Part B: Participants with SLE receiving GSK4527363EXPERIMENTAL -
Part B: Participants with SLE receiving belimumabEXPERIMENTAL -
Part C: Healthy Japanese participants receiving GSK4527363EXPERIMENTAL -
Part C: Healthy Japanese participants receiving placebo matching GSK4527363PLACEBO_COMPARATOR -
Part C: Healthy Chinese participants receiving GSK4527363EXPERIMENTAL -
Part C: Healthy Chinese participants receiving placebo matching GSK4527363PLACEBO_COMPARATOR -
Part D: Participants with CTD-ILD receiving GSK4527363EXPERIMENTAL -

Interventions

NameTypeDescription
GSK4527363DRUGGSK4527363 will be administered to participants.
Placebo matching GSK4527363DRUGPlacebo matching GSK4527363 will be administered to participants.
BelimumabDRUGBelimumab will be administered to participants.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites28

Inclusion criteria: For Part A and Part C (Healthy Participants): * Participant must be 18 to 55 years of age inclusive, at the time of signing the informed consent form * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, labo...

Countries:United StatesArgentinaBrazilPolandSpainUnited Kingdom
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Recent Changes (Last 90 Days)

LOWJun 22, 2026NCT06576271lastUpdatePostDate: changed
LOWJun 22, 2026NCT06576271lastUpdatePostDate: changed

Frequently asked questions about GSK4527363

What is GSK4527363 used for?

GSK4527363 is an investigational small molecule being developed for Systemic Lupus Erythematosus (SLE). It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities. The drug is being studied in healthy participants as well as in patients with SLE.

Who makes GSK4527363?

GSK4527363 is being developed by GSK plc, a global biopharma company listed on the London Stock Exchange under the ticker GSK. The company is conducting a Phase 1 clinical trial to evaluate the drug in healthy participants and patients with Systemic Lupus Erythematosus.

What phase is GSK4527363 in?

GSK4527363 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA or any other regulatory agency. The ongoing Phase 1 trial is currently recruiting participants and is designed to evaluate the drug in healthy volunteers and patients with Systemic Lupus Erythematosus.

What clinical trials is GSK4527363 in?

GSK4527363 is being studied in a single Phase 1 clinical trial registered as NCT06576271. This randomized, double-blind, placebo-controlled study is recruiting 142 participants across the United States, Argentina, Brazil, Poland, Spain, and the United Kingdom. The trial includes healthy participants, SLE patients, healthy Chinese and Japanese participants, and CTD-ILD participants.

Is GSK4527363 the same as any other drug?

No alternative names for GSK4527363 have been disclosed. The drug is identified solely by its development code GSK4527363 in the ongoing clinical trial. It is a small molecule being investigated for the treatment of Systemic Lupus Erythematosus.