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HS235

Phase 1

Pulmonary Arterial Hypertension | Monoclonal antibody | Cardiovascular |GSK plc|Last Updated: Aug 17, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment90

FDA Designations

No designations recorded

Clinical trial landscape

HS235 · 2 trials · 3 indications

Phase 1 2
NCT07123779HS235 Study in Obese Participants With Pulmonary Hypertension and Heart Failure With Preserved Ejection Fraction (HFpEF)Pulmonary Hypertension
RECRUITING126 Analytics
NCT07143448A Study of HS235 for Treatment of Pulmonary Arterial Hypertension (PAH) in AdultsPulmonary Arterial Hypertension
RECRUITING90 Analytics
PHASE1RECRUITING
HS235 Study in Obese Participants With Pulmonary Hypertension and Heart Failure With Preserved Ejection Fraction (HFpEF)
Pulmonary HypertensionUnlock trial analytics
PHASE1RECRUITING
A Study of HS235 for Treatment of Pulmonary Arterial Hypertension (PAH) in Adults
Pulmonary Arterial HypertensionUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence and Number of Adverse Events (AEs)
Up to 24 weeks

An AE is any untoward medical occurrence in a participant or clinical trial participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment. The incidence and number of participants who experience an AE will be reported.

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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Investigational ProductEXPERIMENTALHS235 Subcutaneous Injection
PlaceboPLACEBO_COMPARATORSubcutaneous Injection
HS235EXPERIMENTALHS235 Subcutaneous Injection

Interventions

NameTypeDescription
HS235BIOLOGICALSubcutaneous Injection
PlaceboOTHERSubcutaneous Injection
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: Participants are eligible to be included in the study only if they meet at least all the following criteria: 1. Male or female, ≥ 18 years of age. 2. \[Sub-population A only - using a remote PAP sensor\]- Ambulatory PAP monitoring (e.g., CardioMEMS™ HF System or Cordella™ HF Sy...

Countries:United StatesSpain
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Frequently asked questions about HS235

What is HS235 used for?

HS235 is an investigational monoclonal antibody being developed for pulmonary arterial hypertension (PAH) and pulmonary hypertension. It is also being studied in obese participants with pulmonary hypertension and heart failure with preserved ejection fraction (HFpEF). The drug is in Phase 1 clinical development.

Who makes HS235?

HS235 is being developed by GSK plc, a biopharmaceutical company listed on the stock exchange under the ticker GSK. The company is conducting Phase 1 clinical trials of HS235 in the United States and Spain.

What phase is HS235 in?

HS235 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. Two Phase 1 trials are currently recruiting participants to evaluate the drug for pulmonary arterial hypertension and pulmonary hypertension with HFpEF.

What clinical trials is HS235 in?

HS235 is being studied in two Phase 1 clinical trials. NCT07123779 is a study in obese participants with pulmonary hypertension and heart failure with preserved ejection fraction, enrolling 126 participants in the United States. NCT07143448 is a study for pulmonary arterial hypertension in adults, enrolling 90 participants in the United States and Spain.

Is HS235 the same as any other drug?

HS235 is a distinct investigational monoclonal antibody. No alternative names for HS235 have been disclosed in clinical trial records. It is being studied under its own name in ongoing Phase 1 trials for pulmonary hypertension conditions.