Merck Sharp & Dohme

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Merck Sharp & Dohme sits in the top decile of US sponsors by registered trial count (#63 of 15,742 sponsors by registered trial count).

558 total trials 120 currently recruiting 320 completed early-phase tilt top decile by trial count

Merck Sharp & Dohme: 558 sponsored US clinical trials, 120 recruiting.

Merck Sharp & Dohme sponsors 558 registered US clinical trials on ClinicalTrials.gov, 120 of them currently recruiting, and 320 completed. 191 of these trials are in Phase 3-4 (later-stage) and 360 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 25 trials.

Top-decile sponsor footprint

Merck Sharp & Dohme ranks in the top decile of sponsors by registered trial count (#63 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

C 66/100

320 of 354 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (90.4%), 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

558 total, page 8 of 12

COMPLETED Phase 3

Perioperative Enfortumab Vedotin (EV) Plus Pembrolizumab (MK-3475) Versus Neoadjuvant Chemotherapy for Cisplatin-Eligible Muscle Invasive Bladder Cancer (MIBC) (MK-3475-B15/ KEYNOTE-B15 / EV-304)

NCT04700124

COMPLETED Phase 2

Pembrolizumab/Vibostolimab Coformulation (MK-7684A) or Pembrolizumab/Vibostolimab Coformulation Plus Docetaxel Versus Docetaxel for Metastatic Non Small Cell Lung Cancer (NSCLC) With Progressive Disease After Platinum Doublet Chemotherapy and Immunotherapy (MK-7684A-002, KEYVIBE-002)

NCT04725188

COMPLETED Phase 3

Coformulation of Pembrolizumab/Vibostolimab (MK-7684A) Versus Pembrolizumab (MK-3475) Monotherapy for Programmed Cell Death 1 Ligand 1 (PD-L1) Positive Metastatic Non-Small Cell Lung Cancer (MK-7684A-003, KEYVIBE-003)

NCT04738487

COMPLETED Phase 2

Efficacy and Safety of Clesrovimab (MK-1654) in Infants (MK-1654-004)

NCT04767373

COMPLETED Phase 3

Study of Lenvatinib (MK-7902/E7080) in Combination With Pembrolizumab (MK-3475) Versus Standard of Care in Participants With Metastatic Colorectal Cancer (MK-7902-017/E7080-G000-325/LEAP-017)

NCT04776148

COMPLETED Phase 1

Cognition Platform Study in Participants at Risk for Alzheimer's Disease (AD) (MK-0000-413)

NCT04730635

COMPLETED Phase 1

A Study to Investigate the Influence of Hepatic Impairment on Elpipodect (MK-8189) Treatment (MK-8189-012)

NCT04676425

COMPLETED Phase 2

Safety and Efficacy of Coformulated Pembrolizumab/Quavonlimab (MK-1308A) in Combination With Lenvatinib (E7080/MK-7902) in Advanced Hepatocellular Carcinoma (MK-1308A-004)

NCT04740307

TERMINATED Phase 3

Oral Islatravir (MK-8591) Once-Monthly as Preexposure Prophylaxis (PrEP) in Men and Transgender Women Who Are at High Risk for HIV-1 Infection (MK-8591-024)

NCT04652700

COMPLETED Phase 2

Dose Ranging, Switch Study of Islatravir (MK-8591) and Ulonivirine (MK-8507) Once-Weekly in Virologically-Suppressed Adults With Human Immunodeficiency Virus Type 1 (HIV-1) [MK-8591-013]

NCT04564547

TERMINATED Phase 3

Oral ISL QM as PrEP in Cisgender Women at High Risk for HIV-1 Infection (MK-8591-022)

NCT04644029

COMPLETED Phase 2

Pembrolizumab Plus Lenvatinib for First-line Advanced/Metastatic Non-clear Cell Renal Cell Carcinoma (1L nccRCC) (MK-3475-B61)

NCT04704219

COMPLETED Phase 1

MK-1942/Donepezil Interactions in Participants With Alzheimer's Disease (MK-1942-005)

NCT04308304

TERMINATED Phase 1

Study of a Single Intravenous (IV) Dose of MK-3402 in Participants With Impaired Renal Function and in Healthy Controls (MK-3402-004)

NCT04678505

COMPLETED Phase 2

Efficacy and Safety of Elpipodect (MK-8189) in Participants With an Acute Episode of Schizophrenia (MK-8189-008)

NCT04624243

COMPLETED Phase 2

Doravirine/Islatravir (DOR/ISL) in Pediatric Participants With Human Immunodeficiency Virus Type 1 (HIV-1) Who Are <18 Years of Age and Weigh ≥35 kg (MK-8591A-028)

NCT04295772

TERMINATED Phase 2

A Study of MK-3655 in Individuals With Pre-cirrhotic Nonalcoholic Steatohepatitis (NASH) (MK-3655-001)

NCT04583423

COMPLETED Phase 1

Single-Dose Islatravir in Moderate Hepatic Impairment (MK-8591-030)

NCT04515641

TERMINATED Phase 1

Dose Ranging Trial to Assess Safety and Immunogenicity of V590 (COVID-19 Vaccine) in Healthy Adults (V590-001)

NCT04569786

TERMINATED Phase 1

A Study of Gebasaxturev (V937) in Combination With Pembrolizumab (MK-3475) in Participants With Advanced/Metastatic Solid Tumors (V937-013)

NCT04521621

COMPLETED Phase 4

A Study of Pembrolizumab (MK-3475) Plus Carboplatin and Paclitaxel as First-line Treatment of Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma (MK-3475-B10/KEYNOTE B10)

NCT04489888

COMPLETED Phase 2

Efficacy and Safety of Molnupiravir (MK-4482) in Non-Hospitalized Adult Participants With COVID-19 (MK-4482-002)

NCT04575597

TERMINATED Phase 2

Efficacy and Safety of Molnupiravir (MK-4482) in Hospitalized Adult Participants With COVID-19 (MK-4482-001)

NCT04575584

COMPLETED Phase 1

Islatravir and Methadone Pharmacokinetics (MK-8591-029)

NCT04568603

COMPLETED Phase 1

Safety, Tolerability, and Pharmacokinetics Study of Elpipodect (MK-8189) in Participants With Schizophrenia and Healthy Participants (MK-8189-011)

NCT04506905

COMPLETED Early Phase 1

Gluten Challenge Study in Celiac Disease Participants (MK-0000-402)

NCT04054544

TERMINATED Phase 1

A Study to Assess Safety, Tolerability, and Immunogenicity of V591 (COVID-19 Vaccine) in Healthy Participants (V591-001)

NCT04498247

COMPLETED Phase 3

Efficacy and Safety of Olaparib (MK-7339) With or Without Bevacizumab Compared to Bevacizumab With a Fluoropyrimidine in Unresectable or Metastatic Colorectal Cancer (CRC) (MK-7339-003/LYNK-003)

NCT04456699

COMPLETED Phase 2

Lenvatinib (E7080/MK-7902) in Combination With Pembrolizumab (MK-3475) vs. Standard Chemotherapy and Lenvatinib Monotherapy in Participants With Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma That Progressed After Platinum Therapy and Immunotherapy (MK-7902-009/E7080-G000-228/LEAP-009)

NCT04428151

COMPLETED Phase 2

A Study of Lenvatinib (MK-7902) in Pediatric Participants With Relapsed or Refractory Solid Malignancies (MK-7902-013/E7080)

NCT04447755

COMPLETED Phase 2

Posaconazole (MK-5592) Intravenous and Oral in Children With Invasive Aspergillosis (IA) (MK-5592-104)

NCT04218851

COMPLETED Phase 1

Substudy 02A: Safety and Efficacy of Pembrolizumab in Combination With Investigational Agents in Participants With Programmed Cell-death 1 (PD-1) Refractory Melanoma (MK-3475-02A/KEYMAKER-U02)

NCT04305041

COMPLETED Phase 1

Substudy 02C: Safety and Efficacy of Pembrolizumab in Combination With Investigational Agents or Pembrolizumab Alone in Participants With Stage III Melanoma Who Are Candidates for Neoadjuvant Therapy (MK-3475-02C/KEYMAKER-U02)

NCT04303169

COMPLETED Phase 1

Pharmacokinetics of Islatravir in Participants With Severe Renal Impairment (MK-8591-026)

NCT04303156

COMPLETED Phase 1

Frespaciguat (MK-5475) in Participants With Pulmonary Hypertension Associated With Chronic Obstructive Pulmonary Disease (PH-COPD) (MK-5475-006)

NCT04370873

TERMINATED Phase 2

Efficacy, Safety, and Tolerability of Gebasaxturev (V937) Administered Intravenously or Intratumorally With Pembrolizumab (MK-3475) Versus Pembrolizumab Alone in Participants With Advanced/Metastatic Melanoma (V937-011)

NCT04152863

COMPLETED Phase 3

Efficacy and Safety of Gefapixant (MK-7264) in Adult Participants With Recent Onset Chronic Cough (MK-7264-043)

NCT04193202

COMPLETED Phase 3

Study of Chemoradiotherapy With or Without Pembrolizumab (MK-3475) For The Treatment of Locally Advanced Cervical Cancer (MK-3475-A18/KEYNOTE-A18/ENGOT-cx11/GOG-3047)

NCT04221945

COMPLETED Phase 3

Efficacy and Safety of Gefapixant (MK-7264) in Women With Chronic Cough and Stress Urinary Incontinence (MK-7264-042)

NCT04193176

COMPLETED Phase 1

Safety and Pharmacokinetics of Ceftolozane/Tazobactam in Pediatric Participants With Nosocomial Pneumonia (MK-7625A-036)

NCT04223752

COMPLETED Phase 3

Doravirine/Islatravir (DOR/ISL) in Heavily Treatment-Experienced (HTE) Participants for Human Immunodeficiency Virus Type 1 (HIV-1) Infection (MK-8591A-019)

NCT04233216

COMPLETED Phase 2

Study of Intratumoral (IT) Ulevostinag (MK-1454) in Combination With Intravenous (IV) Pembrolizumab (MK-3475) Compared to IV Pembrolizumab Alone as the First Line Treatment of Metastatic or Unresectable, Recurrent Head and Neck Squamous Cell Carcinoma (HNSCC) (MK-1454-002)

NCT04220866

COMPLETED Phase 3

Study of Doravirine/Islatravir (DOR/ISL 100 mg/0.75 mg) to Evaluate the Antiretroviral Activity, Safety, and Tolerability in Treatment-Naïve Participants With Human Immunodeficiency Virus Type 1 (HIV-1) Infection (MK-8591A-020)

NCT04233879

COMPLETED Phase 3

Switch to Doravirine/Islatravir (DOR/ISL) in Human Immunodeficiency Virus 1 (HIV-1) Participants Treated With Bictegravir/Emtricitabine/Tenofovir Alafenamide (BIC/FTC/TAF) (MK-8591A-018)

NCT04223791

COMPLETED Phase 3

Safety and Efficacy of a Switch to Doravirine/Islatravir in Participants With HIV-1 (MK-8591A-017)

NCT04223778

COMPLETED Phase 3

A Study of Pembrolizumab (MK-3475) With or Without Lenvatinib (E7080/MK-7902) as First Line (1L) Intervention in a Programmed Cell Death-ligand 1 (PD-L1) Selected Population With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma (R/M HNSCC) (MK-7902-010) (KEYNOTE-010)

NCT04199104

COMPLETED Phase 2

KEYMAKER-U01 Substudy 3: Efficacy and Safety Study of Pembrolizumab (MK-3475) When Used With Investigational Agents in Participants With Advanced Non-small Cell Lung Cancer (NSCLC), Previously Treated With Anti-programmed Cell Death Receptor Ligand 1 (PD-L1) Therapy (MK-3475-01C/KEYMAKER-U01C)

NCT04165096

COMPLETED Phase 2

Study of Olaparib Plus Pembrolizumab Versus Chemotherapy Plus Pembrolizumab After Induction With First-Line Chemotherapy Plus Pembrolizumab in Triple Negative Breast Cancer (TNBC) (MK-7339-009/KEYLYNK-009)

NCT04191135

COMPLETED Phase 2

KEYMAKER-U01 Substudy 2: Efficacy and Safety Study of Pembrolizumab (MK-3475) When Used With Investigational Agents in Treatment-naïve Participants With Anti-programmed Cell Death Receptor Ligand 1 (PD-L1) Positive Advanced Non-small Cell Lung Cancer (NSCLC) (MK-3475-01B/KEYMAKER-U01B)

NCT04165083

COMPLETED Phase 1

A Phase 1/Phase 2 Study of Polyvalent Pneumococcal Conjugate Vaccine (V116) in Adults (V116-001)

NCT04168190

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Phase Distribution

PhaseTrial count
Phase 1 230
Phase 2 130
Phase 3 173
Phase 4 18

What is open in the Merck Sharp & Dohme pipeline

120 recruiting of 558 indexed (22% open); 320 completed (57%).

Phase mix: 191 late (III/IV) vs 360 early (I/II) (early-phase heavy).

Top condition: Healthy (25 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.

Merck Sharp & Dohme: open-pipeline peers nationwide

Peers matched on 558 registered trials and 22% open enrollment, not the therapeutic-area sidebar.

Merck Sharp & Dohme 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 0200400600 5%10%15%20%25% Total trials Recruiting share Merck Sharp & DohmeAmgenVirginia Commonwealth UniversityUniversity of Maryland, BaltimoreOhio State UniversityAbbVieWomen and Infants Hospital of Rhode IslandFlorida State UniversityAxsome Therapeutics
Merck Sharp & Dohme 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).

Merck Sharp & Dohme 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 558 trials (± recruiting share)

Sponsors near 22% open enrollment (± trial volume)

What to do with this Merck Sharp & Dohme page

558 registered trials is a research-attention snapshot, not an endorsement of Merck Sharp & Dohme or any single study.

  • 120 of Merck Sharp & Dohme's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Healthy is the condition Merck Sharp & Dohme studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy 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.

Merck Sharp & Dohme pipeline card: 558 registered trials from official public datasets.Report a data error.