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Merck & Co., Inc. (MRK) FDA Approvals

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Upcoming FDA Events for Merck & Co., Inc.

Merck & Co., Inc. (MRK) has upcoming FDA regulatory milestones for KEYTRUDA QLEX™ and I-DXd. The table below outlines estimated target dates and event types for these pending regulatory actions.

DrugTarget DateAnnouncement
KEYTRUDA QLEX™August 17, 2026PDUFA Date
Merck announced that The FDA set a Prescription Drug User Fee Act (PDUFA), or target action, date of August 17, 2026. (April 20, 2026)
I-DXdOctober 10, 2026PDUFA Date
Daiichi Sankyo and Merck announced that The Prescription Drug User Fee Act (PDUFA) date, the FDA action date for its regulatory decision, is October 10, 2026. (April 13, 2026)

Merck & Co., Inc.'s Drugs in the FDA Approval Process

This section highlights FDA-related milestones and regulatory updates for drugs developed by Merck & Co., Inc. (MRK). Over the past two years, Merck & Co., Inc. has reported clinical trial outcomes, regulatory submissions, approvals, and other FDA events for drugs and therapies such as KEYTRUDA, LITESPARK-012, Doravirine/Islatravir, ENFLONSIA™, I-DXd, KEYNOTE-B96, and MK-8748. For definitions of regulatory abbreviations such as NDA, BLA, or PDUFA, see the event status legend. Select a button below to view the list of FDA events for that drug.

KEYTRUDA QLEX™ FDA Regulatory Timeline and Events

KEYTRUDA QLEX™ is a drug developed by Merck & Co., Inc. for the following indication: Injection for Subcutaneous Use in Adults Across Most Solid Tumor Indications for KEYTRUDA® (pembrolizumab). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

LITESPARK-012 FDA Regulatory Events

LITESPARK-012 is a drug developed by Merck & Co., Inc. for the following indication: Treatments for Certain Patients With Advanced Renal Cell Carcinoma (RCC). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Doravirine/Islatravir FDA Regulatory Timeline and Events

Doravirine/Islatravir is a drug developed by Merck & Co., Inc. for the following indication: In adults with HIV-1 infection. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

ENFLONSIA™ FDA Regulatory Timeline and Events

ENFLONSIA™ is a drug developed by Merck & Co., Inc. for the following indication: In Infants Born During or Entering Their First RSV Season. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

I-DXd FDA Regulatory Timeline and Events

I-DXd is a drug developed by Merck & Co., Inc. for the following indication: In patients with pretreated extensive-stage small cell lung cancer (ES-SCLC). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYNOTE-B96 FDA Regulatory Timeline and Events

KEYNOTE-B96 is a drug developed by Merck & Co., Inc. for the following indication: In Patients With Platinum-Resistant Recurrent Ovarian Cancer. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

MK-8748 FDA Regulatory Events

MK-8748 is a drug developed by Merck & Co., Inc. for the following indication: Treatment of Neovascular Age-Related Macular Degeneration. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

CORALreef AddOn FDA Regulatory Events

CORALreef AddOn is a drug developed by Merck & Co., Inc. for the following indication: Oral Non-Statin Therapies. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Sotatercept-csrk FDA Regulatory Timeline and Events

Sotatercept-csrk is a drug developed by Merck & Co., Inc. for the following indication: In adults with pulmonary arterial hypertension. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

BRAVECTO (fluralaner) FDA Regulatory Events

BRAVECTO (fluralaner) is a drug developed by Merck & Co., Inc. for the following indication: Chews for Dogs. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

GARDASIL®9 (Human Papillomavirus 9-valent Vaccine, Recombinant) FDA Regulatory Events

GARDASIL®9 (Human Papillomavirus 9-valent Vaccine, Recombinant) is a drug developed by Merck & Co., Inc. for the following indication: Oropharyngeal and Other Head and Neck Cancers. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

NUMELVI™ FDA Regulatory Events

NUMELVI™ is a drug developed by Merck & Co., Inc. for the following indication: for the Treatment of Pruritus Associated with Allergic Dermatitis Including Atopic Dermatitis and Treatment of Clinical Manifestations of Atopic Dermatitis in Dogs. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYTRUDA®(pembrolizumab) FDA Regulatory Timeline and Events

KEYTRUDA®(pembrolizumab) is a drug developed by Merck & Co., Inc. for the following indication: For the treatment of patients with locally advanced or metastatic urothelial carcinoma. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

MK-1084 FDA Regulatory Timeline and Events

MK-1084 is a drug developed by Merck & Co., Inc. for the following indication: Oral selective KRAS G12C inhibitor. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

EV-304 FDA Regulatory Events

EV-304 is a drug developed by Merck & Co., Inc. for the following indication: in patients with muscle-invasive bladder cancer. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Sotatercept FDA Regulatory Events

Sotatercept is a drug developed by Merck & Co., Inc. for the following indication: Pulmonary Arterial Hypertension (PAH). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

CAPVAXIVE FDA Regulatory Timeline and Events

CAPVAXIVE is a drug developed by Merck & Co., Inc. for the following indication: For the prevention of invasive disease caused by Streptococcus pneumoniae serotypes. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

MK-2214 FDA Regulatory Events

MK-2214 is a drug developed by Merck & Co., Inc. for the following indication: , a novel candidate targeting the abnormal accumulation and aggregation of tau in the brain. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYNOTE-905 FDA Regulatory Events

KEYNOTE-905 is a drug developed by Merck & Co., Inc. for the following indication: Patients with Muscle-Invasive Bladder Cancer. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

EV-303 FDA Regulatory Timeline and Events

EV-303 is a drug developed by Merck & Co., Inc. for the following indication: For Certain Patients with Muscle-Invasive Bladder Cancer. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Enlicitide decanoate FDA Regulatory Timeline and Events

Enlicitide decanoate is a drug developed by Merck & Co., Inc. for the following indication: For the Treatment of Adults With Hyperlipidemia. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYNOTE-689 FDA Regulatory Timeline and Events

KEYNOTE-689 is a drug developed by Merck & Co., Inc. for the following indication: In Patients With Resected, Locally Advanced Head and Neck Squamous Cell Carcinoma. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

LEAP-012 FDA Regulatory Events

LEAP-012 is a drug developed by Merck & Co., Inc. for the following indication: Non-Metastatic Hepatocellular Carcinoma. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Belzutifan FDA Regulatory Timeline and Events

Belzutifan is a drug developed by Merck & Co., Inc. for the following indication: Treated Patients With Advanced Renal Cell Carcinoma (RCC). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

R-DXd FDA Regulatory Events

R-DXd is a drug developed by Merck & Co., Inc. for the following indication: for Patients with CDH6. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Keytruda (pembrolizumab) + Lenvima (lenvatinib) uHCC FDA Regulatory Events

Keytruda (pembrolizumab) + Lenvima (lenvatinib) uHCC is a drug developed by Merck & Co., Inc. for the following indication: Unresectable Hepatocellular Carcinoma (uHCC). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

MK-7240 FDA Regulatory Events

MK-7240 is a drug developed by Merck & Co., Inc. for the following indication: In Inflammatory Bowel Disease. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

HER3-DXd FDA Regulatory Events

HER3-DXd is a drug developed by Merck & Co., Inc. for the following indication: For the treatment of adult patients with locally advanced or metastatic EGFR-mutated non-small cell lung cancer (NSCLC). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

VERQUVO (vericiguat) FDA Regulatory Events

VERQUVO (vericiguat) is a drug developed by Merck & Co., Inc. for the following indication: Chronic Heart Failure and Reduced Ejection Fraction. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYNOTE-A18 FDA Regulatory Events

KEYNOTE-A18 is a drug developed by Merck & Co., Inc. for the following indication: For Patients With Newly Diagnosed High-Risk Locally Advanced Cervical Cancer. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

MK-8527 FDA Regulatory Events

MK-8527 is a drug developed by Merck & Co., Inc. for the following indication: novel nucleoside reverse transcriptase translocation inhibitor. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

V181 FDA Regulatory Events

V181 is a drug developed by Merck & Co., Inc. for the following indication: for the prevention of dengue disease caused by any of the four dengue virus serotypes (DENV-1, DENV-2, DENV-3, and DENV-4). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

WaveLINE-003 FDA Regulatory Events

WaveLINE-003 is a drug developed by Merck & Co., Inc. for the following indication: In Patients With Relapsed/Refractory DLBCL. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYNOTE-483 FDA Regulatory Events

KEYNOTE-483 is a drug developed by Merck & Co., Inc. for the following indication: For the first-line treatment of patients with unresectable advanced or metastatic malignant pleural mesothelioma. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

MK-3475A-D77 FDA Regulatory Events

MK-3475A-D77 is a drug developed by Merck & Co., Inc. for the following indication: For the first-line treatment of adult patients with metastatic non-small cell lung cancer (NSCLC). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

HRS-5346 FDA Regulatory Events

HRS-5346 is a drug developed by Merck & Co., Inc. for the following indication: For Cardiovascular Disease. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

NRG-GY018 FDA Regulatory Events

NRG-GY018 is a drug developed by Merck & Co., Inc. for the following indication: Evaluating KEYTRUDA in combination with standard of care chemotherapy (paclitaxel and carboplatin). This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

KEYNOTE-671 FDA Regulatory Events

KEYNOTE-671 is a drug developed by Merck & Co., Inc. for the following indication: Evaluating neoadjuvant KEYTRUDA plus chemotherapy. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

LINE-010 FDA Regulatory Events

LINE-010 is a drug developed by Merck & Co., Inc. for the following indication: For the Treatment of Patients With Previously Untreated Diffuse Large B-Cell Lymphoma. This drug is under review by the U.S. Food and Drug Administration (FDA). Below is a timeline of key regulatory milestones for this therapy.

Merck & Co., Inc. FDA Events - Frequently Asked Questions

In the past two years, Merck & Co., Inc. (MRK) has not received FDA approval for any therapies. However, the company does have drugs under review or in active clinical development.

In the past two years, Merck & Co., Inc. (MRK) has reported FDA regulatory activity for the following drugs: sotatercept-csrk, Doravirine/Islatravir, KEYTRUDA QLEX™, ENFLONSIA™, I-DXd, KEYNOTE-689, KEYNOTE-B96, KEYTRUDA®(pembrolizumab), CAPVAXIVE, EV-303, enlicitide decanoate, MK-1084, KEYNOTE-905, belzutifan, NUMELVI™, R-DXd, MK-8527, LITESPARK-012, MK-8748, CORALreef AddOn, BRAVECTO (fluralaner), GARDASIL®9 (Human Papillomavirus 9-valent Vaccine, Recombinant), EV-304, Sotatercept, MK-2214, LEAP-012, Keytruda (pembrolizumab) + Lenvima (lenvatinib) uHCC, MK-7240, HER3-DXd, VERQUVO (vericiguat), KEYNOTE-A18, V181, waveLINE-003, KEYNOTE-483, MK-3475A-D77, HRS-5346, NRG-GY018, KEYNOTE-671 and LINE-010.

The most recent FDA-related event for Merck & Co., Inc. occurred on April 22, 2026, involving KEYTRUDA QLEX™. The update was categorized as "Provided Update," with the company reporting: "Labcorp announced the nationwide availability of Agilent Technologies' PD-L1 IHC 22C3 pharmDx, the only companion diagnostic approved by the U.S. Food and Drug Administration (FDA) to identify patients with platinum-resistant ovarian cancer who may be eligible for Merck's KEYTRUDA®.i KEYTRUDA (pembrolizumab) and KEYTRUDA QLEX™ (pembrolizumab and berahyaluronidase alfa-pmph) are the first FDA-approved PD-1 inhibitors available as part of a complete treatment regimen for eligible patients with platinum-resistant ovarian cancer.ii"

Current therapies from Merck & Co., Inc. in review with the FDA target conditions such as:

  • In adults with pulmonary arterial hypertension - sotatercept-csrk
  • In adults with HIV-1 infection - Doravirine/Islatravir
  • Injection for Subcutaneous Use in Adults Across Most Solid Tumor Indications for KEYTRUDA® (pembrolizumab) - KEYTRUDA QLEX™
  • In Infants Born During or Entering Their First RSV Season - ENFLONSIA™
  • In patients with pretreated extensive-stage small cell lung cancer (ES-SCLC). - I-DXd
  • In Patients With Resected, Locally Advanced Head and Neck Squamous Cell Carcinoma - KEYNOTE-689
  • In Patients With Platinum-Resistant Recurrent Ovarian Cancer - KEYNOTE-B96
  • For the treatment of patients with locally advanced or metastatic urothelial carcinoma - KEYTRUDA®(pembrolizumab)
  • For the prevention of invasive disease caused by Streptococcus pneumoniae serotypes - CAPVAXIVE
  • For Certain Patients with Muscle-Invasive Bladder Cancer - EV-303
  • For the Treatment of Adults With Hyperlipidemia - enlicitide decanoate
  • Oral selective KRAS G12C inhibitor - MK-1084
  • Patients with Muscle-Invasive Bladder Cancer - KEYNOTE-905
  • Treated Patients With Advanced Renal Cell Carcinoma (RCC) - belzutifan
  • for the Treatment of Pruritus Associated with Allergic Dermatitis Including Atopic Dermatitis and Treatment of Clinical Manifestations of Atopic Dermatitis in Dogs - NUMELVI™
  • for Patients with CDH6 - R-DXd
  • novel nucleoside reverse transcriptase translocation inhibitor - MK-8527
  • Treatments for Certain Patients With Advanced Renal Cell Carcinoma (RCC) - LITESPARK-012
  • Treatment of Neovascular Age-Related Macular Degeneration - MK-8748
  • Oral Non-Statin Therapies - CORALreef AddOn
  • Chews for Dogs - BRAVECTO (fluralaner)
  • Oropharyngeal and Other Head and Neck Cancers - GARDASIL®9 (Human Papillomavirus 9-valent Vaccine, Recombinant)
  • in patients with muscle-invasive bladder cancer - EV-304
  • Pulmonary Arterial Hypertension (PAH) - Sotatercept
  • , a novel candidate targeting the abnormal accumulation and aggregation of tau in the brain - MK-2214
  • Non-Metastatic Hepatocellular Carcinoma - LEAP-012
  • Unresectable Hepatocellular Carcinoma (uHCC) - Keytruda (pembrolizumab) + Lenvima (lenvatinib) uHCC
  • In Inflammatory Bowel Disease - MK-7240
  • For the treatment of adult patients with locally advanced or metastatic EGFR-mutated non-small cell lung cancer (NSCLC) - HER3-DXd
  • Chronic Heart Failure and Reduced Ejection Fraction - VERQUVO (vericiguat)
  • For Patients With Newly Diagnosed High-Risk Locally Advanced Cervical Cancer - KEYNOTE-A18
  • for the prevention of dengue disease caused by any of the four dengue virus serotypes (DENV-1, DENV-2, DENV-3, and DENV-4) - V181
  • In Patients With Relapsed/Refractory DLBCL - waveLINE-003
  • For the first-line treatment of patients with unresectable advanced or metastatic malignant pleural mesothelioma. - KEYNOTE-483
  • For the first-line treatment of adult patients with metastatic non-small cell lung cancer (NSCLC). - MK-3475A-D77
  • For Cardiovascular Disease - HRS-5346
  • Evaluating KEYTRUDA in combination with standard of care chemotherapy (paclitaxel and carboplatin) - NRG-GY018
  • Evaluating neoadjuvant KEYTRUDA plus chemotherapy - KEYNOTE-671
  • For the Treatment of Patients With Previously Untreated Diffuse Large B-Cell Lymphoma - LINE-010

More FDA Event Resources from MarketBeat

  • NDA: New Drug Application
  • ANDA: Abbreviated New Drug Application
  • sNDA: Supplemental New Drug Application
  • BLA: Biologics License Application
  • sBLA: Supplemental Biologics License Application
  • FDA Approved: Approved by the FDA
  • EMA: European Medicines Agency
  • CE Mark: European Union Certification
  • NMPA: China National Medical Products Administration
  • MHLW: Japanese Ministry of Health
  • FDA Meeting: Consultation with FDA
  • Pre-IND: Pre-Investigational New Drug Meeting
  • Breakthrough Therapy: Special FDA designation for promising therapies
  • Fast Track: Accelerated FDA approval pathway
  • Orphan Drug: Designation for rare disease treatments
  • RPD: Rare Pediatric Disease Designation
  • RMAT: Regenerative Medicine Advanced Therapy
  • DSMB Review: Data Safety Monitoring Board Review
  • IDMC Review: Independent Data Monitoring Committee
  • MAA: MHRA Marketing Authorization Application
  • RTF: Refusal to File (Rejected Application)
  • 510(k): FDA Clearance for Medical Devices
  • Rolling Submission: Staggered regulatory review process

FDA progress for NYSE:MRK last updated on 4/22/2026 by MarketBeat.com Staff. We continuously monitor for new FDA events and market data.
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