A Study of Sotatercept (MK-7962) in People With Pulmonary Arterial Hypertension (PAH) in India (MK-7962-037)

Researchers are looking for other ways to treat people in India with pulmonary arterial hypertension (PAH), also known as Group 1 pulmonary hypertension (PH). In PAH, the blood vessels in the lungs become thick and narrow, which makes it harder for blood to flow to the lungs. This causes high blood pressure in the lungs and can overwork the heart. PAH can make it hard to breathe and be active.

Researchers want to learn if sotatercept, the study medicine, can be given with standard treatment to help treat PAH. The standard treatment (the usual treatment) for PAH includes one or multiple medicines. However, these may not fully work or treat the symptoms of PAH in some people.

The goal of this study is to learn about the safety and tolerability of sotatercept when it is given with standard treatment to people in India.

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Key information

Conditions

Pulmonary Arterial Hypertension Hypertension, Pulmonary Lung Diseases Respiratory Tract Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

The main inclusion criteria include but are not limited to the following:

Has documented historical diagnostic right heart catheterization (RHC), with the diagnosis of pulmonary arterial hypertension (PAH), also known as Group 1 pulmonary hypertension (PH), in any of the following subtypes: Idiopathic PAH, Heritable PAH, Drug/toxin-induced PAH, PAH associated with connective tissue disease, and PAH associated with simple, congenital systemic-to-pulmonary shunts at least 1 year following repair
Has been on stable doses of PAH background therapies and diuretics (if applicable)
Has symptomatic PAH classified as World Health Organization (WHO) Functional Classification (FC) II or III

Exclusion criteria

The main exclusion criteria include but are not limited to the following:

Has a diagnosis of Groups 2, 3, 4, or 5 PH
Has a diagnosis of the following PAH (Group 1 PH) subtypes: human immunodeficiency virus (HIV)-associated PAH, PAH associated with portal hypertension, schistosomiasis-associated PAH, PAH diagnosed with pulmonary veno occlusive disease (PVOD) or pulmonary capillary hemangiomatosis (PCH)
Has uncontrolled systemic hypertension
Has a history of full or partial pneumonectomy
Has untreated more than mild obstructive sleep apnea
Has known history of portal hypertension or chronic liver disease, including hepatitis B and/or hepatitis C
Has a history of restrictive, constrictive, or congestive cardiomyopathy
Has significant mitral regurgitation or aortic regurgitation valvular disease, mitral stenosis, and more than mild aortic valve stenosis
Has known malignancy that is progressing or has required active treatment within the past 5 years

Treatment and study plan

Sotatercept

Biological

Administered as SC injection

Other names: MK-7962, ACE-011

Background PAH Therapy

Drug

Background PAH therapy refers to approved PAH-specific medications and may consist of a single, double, or triple combination of therapy with Endothelin Receptor Antagonists (ERAs), Phosphodiesterase Type 5 Inhibitors (PDE5), soluble guanylate cyclase stimulators, and/or prostacyclin analogues or receptor agonists

Primary outcomes

Number of participants who experience an adverse event (AE)

Time frame: Up to approximately 37 weeks

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experience an AE will be reported.
Number of participants who discontinue study intervention due to an AE

Time frame: Up to approximately 21 weeks

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinue study intervention due to an AE will be reported.

Study contacts

Contact information is provided by the study sponsor or research team.

Toll Free Number

CONTACT

[email protected]

1-888-577-8839

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study title

A Phase 4, Prospective, Open-label, Single-Arm Study to Evaluate the Safety of Sotatercept in Adults With Pulmonary Arterial Hypertension (PAH) in India

Important dates

Study start: 2026
Primary completion: 2028
Study completion: 2028
First posted: May 22, 2026
Registry last updated: Jun 29, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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