Regeneron Pharmaceuticals

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Regeneron Pharmaceuticals sits in the top decile of US sponsors by registered trial count (#122 of 15,742 sponsors by registered trial count).

280 total trials 61 currently recruiting 151 completed early-phase tilt top decile by trial count

Regeneron Pharmaceuticals: 280 sponsored US clinical trials, 61 recruiting.

Regeneron Pharmaceuticals sponsors 280 registered US clinical trials on ClinicalTrials.gov, 61 of them currently recruiting, and 151 completed. 83 of these trials are in Phase 3-4 (later-stage) and 174 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Dermatitis, Atopic, with 6 trials.

Top-decile sponsor footprint

Regeneron Pharmaceuticals ranks in the top decile of sponsors by registered trial count (#122 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 38/100

151 of 190 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (79.5%), 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.

Open and recent trials

280 total, page 4 of 6

COMPLETED Phase 1

To Assess the Patients' Ability to Self-Administer Fasinumab

NCT03491904

COMPLETED Phase 4

Study to Evaluate an Aflibercept (EYLEA®) Prefilled Syringe

NCT03767738

TERMINATED Phase 2

Efficacy, Safety, and Pharmacokinetic Profiles of REGN3500 Administered to Adult Patients With Moderate-to-Severe Atopic Dermatitis

NCT03738423

TERMINATED Phase 2

Efficacy and Safety of REGN3500 Monotherapy and Combination of REGN3500 Plus Dupilumab in Adult Patients With Moderate-to-Severe Atopic Dermatitis

NCT03736967

COMPLETED

Post-authorization Safety Study in North America to Monitor Pregnancy and Infant Outcomes Following Administration of Dupilumab During Planned or Unexpected Pregnancy

NCT04173442

COMPLETED Phase 2

Study to Evaluate the Effects of Fasinumab on Peripheral Nerve Function in Patients With Pain Due to Osteoarthritis of the Hip or Knee

NCT03691974

COMPLETED Phase 2

Study in Pediatric Subjects With Peanut Allergy to Evaluate Efficacy and Safety of Dupilumab as Adjunct to AR101 (Peanut Oral Immunotherapy)

NCT03682770

TERMINATED Phase 4

Long Term Safety Study of PRALUENT

NCT03694197

COMPLETED Phase 3

Study to Determine the Efficacy and Safety of Dupilumab in Adult and Adolescent Patients With Eosinophilic Esophagitis (EoE)

NCT03633617

TERMINATED Phase 1

REGN2810 in Pediatric Patients With Relapsed, Refractory Solid, or Central Nervous System (CNS) Tumors and Safety and Efficacy of REGN2810 in Combination With Radiotherapy in Pediatric Patients With Newly Diagnosed or Recurrent Glioma

NCT03690869

TERMINATED Phase 3

REGN2810 (Anti-PD-1 Antibody), Platinum-based Doublet Chemotherapy, and Ipilimumab (Anti-CTLA-4 Antibody) Versus Pembrolizumab Monotherapy in Patients With Lung Cancer

NCT03515629

TERMINATED Phase 1

Study of REGN4659 in Combination With Cemiplimab in Patients With Advanced or Metastatic Non-Small Cell Lung Cancer (NSCLC)

NCT03580694

COMPLETED Phase 2

Dupilumab As An Adjunct For Subcutaneous Grass Immunotherapy

NCT03558997

COMPLETED Phase 2

Safety and Efficacy Following Repeat-Dose of Evinacumab (Anti-ANGPTL3) in Patients With Severe Hypertriglyceridemia (sHTG) at Risk for Acute Pancreatitis

NCT03452228

TERMINATED Phase 2

A Study of REGN2810 and Ipilimumab in Patients With Lung Cancer

NCT03430063

COMPLETED Phase 1

Study Evaluating CMP-001 in Combination With Atezolizumab in Participants With Non-Small Cell Lung Cancer

NCT03438318

COMPLETED Phase 3

Evaluate the Long-Term Safety and Efficacy of Evinacumab in Patients With Homozygous Familial Hypercholesterolemia

NCT03409744

COMPLETED Phase 3

Combinations of Cemiplimab (Anti-PD-1 Antibody) and Platinum-based Doublet Chemotherapy in Patients With Lung Cancer

NCT03409614

COMPLETED Phase 2

A Study to Examine the Safety, Tolerability and Effects on Abnormal Bone Formation of REGN2477 in Patients With Fibrodysplasia Ossificans Progressiva

NCT03188666

COMPLETED Phase 3

Efficacy and Safety of Evinacumab in Patients With Homozygous Familial Hypercholesterolemia

NCT03399786

TERMINATED

Praluent® (Alirocumab) Pregnancy Exposure Registry: An OTIS Pregnancy Surveillance Study

NCT03379558

COMPLETED Phase 2

Safety, Pharmacokinetics and Efficacy of Dupilumab in Patients ≥6 Months to <6 Years With Moderate-to-Severe Atopic Dermatitis (Liberty AD PRESCHOOL)

NCT03346434

COMPLETED Phase 3

Study to Investigate the Efficacy and Safety of Dupilumab Administered With Topical Corticosteroids (TCS) in Participants ≥6 to <12 Years With Severe Atopic Dermatitis (AD)

NCT03345914

COMPLETED Phase 2

Study of Evinacumab (REGN1500) in Participants With Persistent Hypercholesterolemia

NCT03175367

TERMINATED Phase 3

Evaluate the Efficacy and Safety of Fasinumab in Patients With Moderate-to-Severe Chronic Low Back Pain and Osteoarthritis of the Hip or Knee

NCT03285646

COMPLETED Phase 3

Study to Determine the Safety and the Efficacy of Fasinumab Compared to Placebo and Nonsteroidal Anti-inflammatory Drugs (NSAIDs) for Treatment of Adults With Pain From Osteoarthritis of the Knee or Hip

NCT03304379

COMPLETED Phase 3

Study in Participants With Homozygous Familial Hypercholesterolemia (HoFH)

NCT03156621

COMPLETED Phase 3

Study of Cemiplimab in Adults With Cervical Cancer

NCT03257267

COMPLETED Phase 3

A Study to Determine the Safety and the Efficacy of Fasinumab Compared to Placebo and Naproxen for Treatment of Adults With Pain From Osteoarthritis of the Knee or Hip

NCT03161093

COMPLETED Phase 2

PD-1 in Patients With Advanced Basal Cell Carcinoma Who Experienced Progression of Disease on Hedgehog Pathway Inhibitor Therapy, or Were Intolerant of Prior Hedgehog Pathway Inhibitor Therapy

NCT03132636

COMPLETED Phase 1

Study of REGN3500 and Dupilumab in Patients With Asthma

NCT03112577

COMPLETED Phase 1

Study of Evinacumab (REGN1500) in Caucasian and in Japanese Healthy Volunteers

NCT03146416

COMPLETED Phase 1

Phase 1B Study Evaluating Alternative Routes of Administration of CMP-001 in Combination With Pembrolizumab in Participants With Advanced Melanoma

NCT03084640

COMPLETED Phase 3

Efficacy and Safety of Dupilumab in Participants ≥12 to <18 Years of Age, With Moderate-to-severe Atopic Dermatitis

NCT03054428

COMPLETED Phase 1

Study of Dupilumab Auto-injector Device When Used by Patients With Atopic Dermatitis

NCT03050151

TERMINATED Phase 1

Safety and Activity Study of PSCA-Targeted CAR-T Cells (BPX-601) in Subjects With Selected Advanced Solid Tumors

NCT02744287

COMPLETED Phase 1

Study of REGN3767 (Anti-LAG-3) With or Without REGN2810 (Anti-PD1) in Advanced Cancers

NCT03005782

COMPLETED Phase 4

Evaluating Effect of the Study Drug Praluent (Alirocumab) on Neurocognitive Function When Compared to Placebo

NCT02957682

COMPLETED Phase 1

Study of Safety, Tolerability, and Pharmacokinetics of REGN3470-3471-3479 in Healthy Adult Volunteers

NCT02777151

COMPLETED Phase 1

Clinical Study of CMP-001 in Combination With Pembrolizumab or as a Monotherapy

NCT02680184

COMPLETED Phase 2

Study of REGN2810 in Patients With Advanced Cutaneous Squamous Cell Carcinoma

NCT02760498

COMPLETED Phase 1

Study of the Blood Concentrations of Two Formulations of REGN2222 in Healthy Subjects

NCT02828397

COMPLETED Phase 2

Anti-angiOpoeitin 2 Plus Anti-vascular eNdothelial Growth Factor as a therapY for Neovascular Age Related Macular Degeneration: Evaluation of a fiXed Combination Intravitreal Injection

NCT02713204

COMPLETED Phase 3

Study of the Efficacy and Safety of Intravitreal (IVT) Aflibercept for the Improvement of Moderately Severe to Severe Nonproliferative Diabetic Retinopathy (NPDR)

NCT02718326

COMPLETED Phase 2

Anti-vasculaR Endothelial Growth Factor plUs Anti-angiopoietin 2 in Fixed comBination therapY: Evaluation for the Treatment of Diabetic Macular Edema

NCT02712008

COMPLETED Phase 1

Study of the Blood Concentrations of Two Formulations of REGN1033 in Healthy Subjects

NCT02741739

COMPLETED Phase 3

Long-Term Safety and Efficacy Study of Fasinumab in Patients With Pain Due to Osteoarthritis (OA) of the Knee or Hip

NCT02683239

COMPLETED Phase 2

A Study to Determine the Efficacy and Safety of Fasinumab for the Treatment of Adults With Chronic Low Back Pain

NCT02620020

COMPLETED Phase 1

Open Label, Drug-Drug Interaction (DDI) Study of Dupilumab (REGN668/SAR231893) in Patients With Moderate to Severe Atopic Dermatitis (AD)

NCT02647086

COMPLETED Phase 3

Study to Evaluate the Efficacy and Safety of Suptavumab (REGN2222) for the Prevention of Medically Attended RSV (Respiratory Syncytial Virus) Infection in Preterm Infants

NCT02325791

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What is open in the Regeneron Pharmaceuticals pipeline

61 recruiting of 280 indexed (22% open); 151 completed (54%).

Phase mix: 83 late (III/IV) vs 174 early (I/II) (early-phase heavy).

Top condition: Dermatitis, Atopic (6 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Regeneron Pharmaceuticals: open-pipeline peers nationwide

Peers matched on 280 registered trials and 22% open enrollment, not the therapeutic-area sidebar.

Regeneron Pharmaceuticals 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 0100200300400 0%5%10%15%20%25% Total trials Recruiting share Regeneron PharmaceuticalsBoston Scientific CorporationAlcon ResearchEisaiSWOG Cancer Research NetworkAtriCureUniversity of Colorado, BoulderUniversity of Maryland, College ParkNorthwell Health
Regeneron Pharmaceuticals 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).

Regeneron Pharmaceuticals 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 280 trials (± recruiting share)

Sponsors near 22% open enrollment (± trial volume)

What to do with this Regeneron Pharmaceuticals page

280 registered trials is a research-attention snapshot, not an endorsement of Regeneron Pharmaceuticals or any single study.

  • 61 of Regeneron Pharmaceuticals's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Dermatitis, Atopic is the condition Regeneron Pharmaceuticals studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Dermatitis, Atopic trials
  • 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.

Regeneron Pharmaceuticals pipeline card: 280 registered trials from official public datasets.Report a data error.