Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA

Closed portfolio with an early-phase archive tilt

According to ClinicalTrials.gov-derived indexes, Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA sits in the top decile of US sponsors by registered trial count (#987 of 15,742 sponsors by registered trial count).

14 total trials none currently recruiting 8 completed early-phase tilt top decile by trial count

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA: 14 sponsored US clinical trials, none currently recruiting.

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA sponsors 14 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 8 completed. 3 of these trials are in Phase 3-4 (later-stage) and 11 in Phase 1-2 (earlier-stage).

Top-decile sponsor footprint

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA ranks in the top decile of sponsors by registered trial count (#987 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

F 0/100

8 of 14 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (57.1%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Indexed trials (enrollment closed)

14 total, page 1 of 1

TERMINATED Phase 1

A Study of MK-2225 / ACE-1334 in Participants With Systemic Sclerosis With and Without Interstitial Lung Disease (MK-2225-002)

NCT04948554

TERMINATED Phase 3

Study of Sotatercept in Newly Diagnosed Intermediate- and High-Risk PAH Participants (MK-7962-005/A011-13)

NCT04811092

COMPLETED Phase 3

A Study of Sotatercept in Participants With PAH WHO FC III or FC IV at High Risk of Mortality (MK-7962-006/ZENITH)

NCT04896008

COMPLETED Phase 3

A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension (MK-7962-003/A011-11)(STELLAR)

NCT04576988

TERMINATED Phase 2

Extension Study to Evaluate the Long-Term Effects of ACE-083 in Patients With Facioscapulohumeral Muscular Dystrophy (FSHD) and Charcot-Marie Tooth (CMT) Disease Types 1 and X (CMT1 and CMTX)

NCT03943290

COMPLETED Phase 2

A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension

NCT03738150

COMPLETED Phase 2

A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension (PAH)

NCT03496207

TERMINATED Phase 2

Study of ACE-083 in Patients With Charcot-Marie-Tooth Disease

NCT03124459

TERMINATED Phase 2

Study of ACE-083 in Patients With Facioscapulohumeral Muscular Dystrophy (FSHD)

NCT02927080

COMPLETED Phase 1

Phase 1 Study of ACE-083 in Healthy Subjects

NCT02257489

COMPLETED Phase 1

Study of Dalantercept and Sorafenib in Patients With Advanced Hepatocellular Carcinoma

NCT02024087

TERMINATED Phase 2

Study of Dalantercept and Axitinib in Patients With Advanced Renal Cell Carcinoma

NCT01727336

COMPLETED Phase 2

Study of Dalantercept in Patients With Squamous Cell Carcinoma of the Head and Neck

NCT01458392

COMPLETED Phase 1

Study of ACE-536 in Healthy Postmenopausal Women

NCT01432717

Phase Distribution

PhaseTrial count
Phase 1 4
Phase 2 7
Phase 3 3

How the Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA early-phase archive is shaped

14 indexed studies, none listed as recruiting (0% open); 8 completed (57%).

Phase mix: 3 late (III/IV) vs 11 early (I/II) (early-phase heavy).

Therapeutic area indexing for this sponsor is limited in the public registry.

How to read a closed sponsor archive

When recruiting_count is zero, the indexed set is completed or otherwise not open. Phase tilt still describes where archived studies sat on the investigational pathway. Re-check ClinicalTrials.gov before acting.

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA: archived-pipeline peers nationwide

Peers matched on 14 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 051015 0%0.0%0.0%0.1% Total trials Recruiting share Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA3-C Institute for Social DevelopmentAbbott Medical OpticsAbbott RDx CardiometabolicAerin Medical10xBio22nd Century Group23andMe3 Waves Wellness
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 14 archived trials

Sponsors with similar archive density (± trial count)

Related

Read our methodology - how this data is sourced, computed, and verified.

What to do with this Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA page

14 registered trials is a research-attention snapshot, not an endorsement of Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA or any single study.

  • None of Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA's trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA pipeline card: 14 registered trials from official public datasets.Report a data error.