Biomea Fusion to present Icovamenib data highlighting durable T2D Control at ADA 2025

Biomea Fusion, a clinical-stage diabetes and obesity medicines company, announced the presentation of new preclinical and clinical data for icovamenib, the company’s investigational oral menin inhibitor, at the 85th Scientific Sessions of the American Diabetes Association (ADA) June 20–23, 2025 in Chicago.

Biomea presented three abstracts: one oral presentation and two posters, all highlighting icovamenib’s therapeutic potential across key dimensions of T2D pathophysiology, including its impact on beta cell restoration, and synergy with glucagon-like peptide-1 (GLP-1) receptor agonists (RA) to promote metabolic health and selective fat loss with complete lean mass preservation.

“Our latest data from ADA 2025 reinforces icovamenib’s differentiated therapeutic profile and highlights the potential of menin inhibition as a novel mechanism of action that can be integrated with various antihyperglycemic agents, including GLP-1-based therapies,” said Ramses Erdtmann, President and Chief Operating Officer of Biomea Fusion. “The studies presented at ADA demonstrate that icovamenib enhanced glycemic control and drove additional weight loss when used in combination with GLP-1 therapies, while fully preserving lean mass. We believed these attributes set icovamenib apart in the diabetes landscape and support its potential to transform care for millions of patients.”

 

Presentation Summaries:

 

Poster Presentation #870-P

Title: Combination Therapy of Icovamenib and Semaglutide Enhances Body Weight Loss and Glycemic Control While Preserving Lean Mass in a Type 2 Diabetes Animal Model

Summary: In a Zucker Diabetic Fatty (ZDF) rat model of T2D, treatment of icovamenib in combination with low-dose semaglutide (0.02 mg/kg) delivered superior metabolic benefits compared to low-dose semaglutide alone:

60% lower fasting blood glucose and 50% lower glucose OGTT AUC

Greater HbA1c decline; >1% by Day 28 and >2% by Day 39

Greater improvement in insulin sensitivity with a 75% lower HOMA-IR (marker of insulin resistance)

2-fold increase in C-peptide to glucose ratio indicating enhanced beta cell function

Superior appetite suppression with a 10% greater body weight reduction than low-dose semaglutide alone

The observed body weight loss was primarily due to fat mass reduction with complete preservation of lean mass

These findings support the potential of icovamenib to enhance the therapeutic effects of GLP-1-based therapies. The combination may allow lower doses of GLP-1-based therapies to achieve glycemic and weight loss targets and improve tolerability of these agents, offering a compelling rationale for clinical evaluation of icovamenib-based combination regimens.

 

Late Breaking Poster Presentation #1996-LB

Title: Icovamenib Rescues Human Myotube Atrophy Ex Vivo and Displays Complete Lean Mass Preservation in a Type 2 Diabetes Rat Model

Summary: This preclinical study evaluated icovamenib’s direct effects on ex vivo human myotube cultures and the effects of icovamenib in combination with low-dose semaglutide in an in vivo rodent model of diabetes:

In ex vivo cultures of iPSC-derived 3D-engineered human myotubes, icovamenib treatment promoted healthy myotube morphology

Separately, icovamenib diminished drug-induced atrophy by activin A or dexamethasone, suggesting muscle health supporting effects of icovamenib

In a ZDF rat study (data also in poster #870-P), combination treatment with icovamenib and low-dose semaglutide induced greater body weight reduction with complete preservation of lean mass, outperforming low-dose semaglutide

These early findings support icovamenib’s unique potential when combined with GLP-1-based therapies to enhance body weight reduction and protect lean mass, a highly desirable feature for any long-term diabetes or obesity therapy.

 

Oral Presentation #272-OR

Title: COVALENT-111: 26-Week Efficacy and Safety after 8 and 12 Weeks of Daily Oral Icovamenib in Patients with Poorly Controlled Type 2 Diabetes

Summary: 26-week follow-up results from the ongoing Phase II COVALENT-111 trial highlight the potential of short-course oral icovamenib treatment (8 or 12 weeks) to deliver durable glycemic control and improved beta cell function, in patients with poorly controlled T2D, particularly in the insulin-deficient subgroup. Key findings include:

Icovamenib achieved a 1.0% placebo-adjusted mean HbA1c reduction and a 55% increase in C-peptide in severe insulin-deficient participants at Week 26, three months after the last dose

Over half of the C-peptide improvement occurred during the off-treatment period, indicating a durable effect on endogenous insulin production

Short-course dosing (8 or 12 weeks) led to sustained HbA1c reductions through Week 26 across the broader study population

Changes in HbA1c correlated significantly with changes in C-peptide, supporting the proposed mechanism of action to restore beta-cell function

In patients inadequately controlled on baseline GLP-1 RA therapy, icovamenib added to the GLP-1 RA led up to an additional 1.0% mean HbA1c reduction

Icovamenib was well tolerated across all dosing arms, with a low incidence of treatment-emergent adverse events (TEAEs), no clinically significant elevations in ALT or AST, and no study drug discontinuations or discontinuations from the trial due to adverse events

These data reinforce icovamenib’s potential as a durable, disease-modifying treatment in T2D, both as monotherapy and in combination with existing agents such as GLP-1 RAs.

 

The three abstracts have been published in Diabetes, the peer-reviewed journal of the American Diabetes Association. Biomea remains committed to advancing novel therapies that improve patient outcomes in diabetes and obesity.

 

About Menin’s Role in Diabetes

Loss of functional beta cell mass and function is a core component of the natural history in both types of diabetes — type 1 diabetes (T1D) (mediated by autoimmune dysfunction) and T2D (mediated by metabolic dysfunction). Beta cells are found in the pancreas and are responsible for the synthesis and secretion of insulin. Insulin is a hormone that helps the body use glucose for energy and helps control blood glucose levels. In patients with diabetes, beta cell mass and function have been observed to be diminished, leading to insufficient insulin secretion and hyperglycemia. Menin is thought to act as a brake on beta cell turnover and growth, supporting the notion that inhibition of menin could lead to the regeneration of normal, healthy beta cells. Based on these and other scientific findings, Biomea is exploring the potential for icovamenib-mediated menin inhibition as a therapeutic approach to potentially halt or reverse progression of T2D.