FDA Grants Approval for Subcutaneous Use of Merck's KEYTRUDA QLEX™ Injection in Adults with Various Solid Tumor Indications
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Sep 19 2025
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Should l Buy MRK?
Source: Newsfilter
KEYTRUDA QLEX Approval: The FDA has approved KEYTRUDA QLEX, a subcutaneous immune checkpoint inhibitor, for adults with various solid tumors, allowing administration by healthcare providers in as little as one minute, offering a faster alternative to intravenous pembrolizumab.
Clinical Trial Results: A pivotal trial showed that KEYTRUDA QLEX demonstrated comparable efficacy and safety to IV pembrolizumab in treating treatment-naïve metastatic non-small cell lung cancer, with similar overall response rates and no significant differences in progression-free or overall survival.
Administration Benefits: KEYTRUDA QLEX can be administered in different healthcare settings, providing flexibility with dosing options of one minute every three weeks or two minutes every six weeks, which may enhance patient convenience and accessibility to treatment.
Safety Considerations: The drug is associated with potential severe immune-mediated adverse reactions and contraindications, necessitating careful monitoring and management of patients, particularly those with known hypersensitivity or undergoing allogeneic hematopoietic stem cell transplantation.
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Analyst Views on MRK
Wall Street analysts forecast MRK stock price to fall
16 Analyst Rating
11 Buy
5 Hold
0 Sell
Moderate Buy
Current: 120.840
Low
95.00
Averages
119.53
High
139.00
Current: 120.840
Low
95.00
Averages
119.53
High
139.00
About MRK
Merck & Co., Inc. is a global health care company that delivers health solutions through its prescription medicines, including biologic therapies, vaccines and animal health products. Its Pharmaceutical segment includes human health pharmaceutical and vaccine products. The Company sells its human health pharmaceutical products primarily to drug wholesalers and retailers, hospitals, government agencies and managed health care providers. It sells these human health vaccines primarily to physicians, wholesalers, distributors and government entities. Its Animal Health segment discovers, develops, manufactures and markets a range of veterinary pharmaceutical and vaccine products, as well as health management solutions and services, for the prevention, treatment and control of disease in all livestock and companion animal species. Its products include KEYTRUDA (pembrolizumab) injection, for intravenous use; WELIREG (belzutifan) tablets, for oral use; Ohtuvayre (ensifentrine) and others.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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