MBX Biosciences Submits IND for Once-Monthly Obesity Drug

By Maham Fatima | August 20, 2025, 12:13 AM

MBX Biosciences Inc. (NASDAQ:MBX) is one of the best IPO stocks to buy according to Wall Street analysts. On June 16, MBX Biosciences announced the submission of an Investigational New Drug/IND application to the US FDA for MBX 4291. This drug is a long-acting GLP-1/GIP receptor co-agonist prodrug being developed for the treatment of obesity.

The company’s President and CEO, Kent Hawryluk, stated that MBX 4291 is designed to be a potential once-monthly injectable, which could offer less frequent dosing and improved gastrointestinal tolerability, potentially leading to better patient adherence and increased weight loss. MBX 4291 was created using the company’s proprietary Precision Endocrine Peptide/PEP platform.

MBX Biosciences Submits IND for Once-Monthly Obesity Drug
A doctor holding a test tube of the biopharmaceutical company's NicAlert drug product while providing patient care.

In preclinical studies, the active component of MBX 4291 demonstrated a similar activity profile and body weight loss as tirzepatide, a weekly GLP-1/GIP co-agonist that is already approved. Furthermore, these preclinical studies showed an extended duration of action for MBX 4291’s active component compared to tirzepatide, supporting the potential for once-monthly administration.

MBX Biosciences Inc. (NASDAQ:MBX) is a clinical-stage biopharmaceutical company that discovers and develops precision peptide therapies for the treatment of endocrine and metabolic disorders.

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Disclosure: None. This article is originally published at Insider Monkey.

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