A Long-term Follow-up Study of Sotatercept for PAH Treatment (MK-7962-004)

Study Purpose

This study is being conducted to assess the long-term safety, tolerability, and efficacy of sotatercept in participants with Pulmonary Arterial Hypertension (PAH). This open-label, long-term follow-up (LTFU) study is supported by data from the PULSAR study (Phase 2, NCT03496207) in which treatment with sotatercept resulted in hemodynamic and functional improvements in the study participants, including those receiving maximal PAH therapy with double/triple drug combinations and intravenous prostacyclin. The primary objective of this open-label, LTFU study is to evaluate the long-term safety and tolerability of sotatercept when added to background PAH therapy in adult participants with PAH who have completed prior sotatercept studies. The secondary objective is to evaluate continued efficacy in adult participants with PAH who have completed prior sotatercept studies.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Interventional
Eligible Ages	18 Years and Over
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

1. Participants must have completed their current respective PAH sotatercept clinical study and its requirements, and must not have discontinued early. 2. Participants must be willing to adhere to the study visit schedule and understand and comply with all protocol requirements. 3. Participants must have the ability to understand and provide documented informed consent. 4. Females of childbearing potential must: 1. Have a negative pregnancy test as verified by the investigator prior to starting study drug administration; she must agree to ongoing pregnancy testing during the course of the study and until 8 weeks after the last dose of the study drug. 2. If sexually active, have used, and agree to continue to use highly effective contraception in combination with a barrier method without interruption, for at least 28 days prior to starting the investigational product, during the study (including dose interruptions), and for 16 weeks (112 days) after discontinuation of study drug. 3. Refrain from breastfeeding a child or donating blood, eggs, or ovum for the duration of the study and for at least 16 weeks (112 days) after the last dose of study drug. 5. Male participants must: 1. Agree to use a condom, defined as a male latex condom or non latex condom NOT made out of natural (animal) membrane (e.g., polyurethane), during sexual contact with a pregnant female or a female of childbearing potential while participating in the study, during dose interruptions, and for at least 16 weeks (112 days) following investigational product discontinuation, even if he has undergone a successful vasectomy. 2. Refrain from donating blood or sperm for the duration of the study and for 16 weeks (112 days) after the last dose of study drug. 6. Participants must agree not to participate in any other trials of investigational drugs/devices while they are enrolled in the A011-12 study.

Exclusion Criteria:

1. Not enrolled in a PAH parent study at the time of enrollment. 2. Missed more than the equivalent of 4 consecutive doses between the end of parent study and the start of this study. 3. Presence of an ongoing serious adverse event that occurred during a PAH sotatercept clinical study that is assessed to be possibly or probably related to sotatercept. 4. Pregnant or breastfeeding females.

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT04796337
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.	Phase 3
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Medical Director
Principal Investigator Affiliation	Merck Sharp & Dohme LLC
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Industry
Overall Status	Recruiting
Countries	Argentina, Australia, Austria, Belgium, Brazil, Canada, Colombia, Croatia, Czechia, Denmark, France, Germany, Greece, Israel, Italy, Korea, Republic of, Mexico, Netherlands, New Zealand, Poland, Portugal, Serbia, Spain, Sweden, Switzerland, Taiwan, United Kingdom, United States
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Pulmonary Arterial Hypertension, PAH
Study Website:	View Trial Website

Additional Details

Participants eligible to enroll in the study will have participated in and completed the relevant study requirements of the parent PAH sotatercept clinical studies.

Arms & Interventions

Arms

Experimental: Sotatercept Treatment

Participants rolling over from a blinded parent study will begin sotatercept at a dose of 0.3 mg/kg SC for Visit 1. Dose will escalate to 0.7 mg/kg SC at Visit 2 through remainder of the study. Participants rolling over from an unblinded parent study will continue sotatercept at their current dose and if at dose < 0.7 mg/kg SC can titrate up to 0.7 mg/kg SC for the remainder of the study.

Interventions

Biological: - Sotatercept

Sotatercept subcutaneous injection at a dose of 0.3 to 0.7 mg/kg.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Phoenix, Arizona

Status

Active, not recruiting

Address

Arizona Pulmonary Specialists ( Site 1010)

Phoenix, Arizona, 85012-2369

Site Contact

Clinical Trial Finder