Merck Sharp & Dohme

558 total trials 120 currently recruiting 320 completed

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.

Trial Pipeline

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 the Pipeline for Merck Sharp & Dohme Shows

According to the ClinicalTrials.gov registry, Merck Sharp & Dohme is linked to 558 US clinical trials across every stage of research activity. Of those, 120 studies are currently recruiting, about 22% of the sponsor's indexed portfolio, and 320 are already marked complete, representing roughly 57% of the total.

The phase mix for Merck Sharp & Dohme reports 191 late-stage studies (Phase 3 and Phase 4 combined) and 360 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for Merck Sharp & Dohme is Healthy with 25 linked trials, and 9 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.