Congruence and Ono Pharma Expand Multi-Target Research Partnership with the Addition of Two New Programs

On March 2, 2026 Ono Pharmaceutical Co., Ltd. (Headquarters: Osaka, Japan; President and COO: Toichi Takino; "Ono") and Congruence Therapeutics reported that they have expanded their existing multi-target research partnership through the execution of a new research collaboration for two additional programs.

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The expanded collaboration is focused on two clinically validated high-value targets in the areas of neurology and immunology for which Congruence will lead the effort to discover small molecule modulators and advance them to the development candidate stage. Ono will have the option to secure exclusive worldwide rights to further develop and commercialize development candidates generated under the new agreement.

An original collaboration between the companies, which began in December 2024, is focused on leveraging Congruence’s proprietary computational engine, Revenir, to discover novel small molecule correctors directed to mutants of a difficult-to-drug cancer target.

"We are excited to expand our partnership with Ono, a global pioneer of innovative medicines," said Sharath Hegde PhD, Chief Scientific Officer of Congruence. "The expansion is a testament to the significant contributions we have made in our existing collaboration as well as the trust and confidence we continue to build with Ono. We look forward to leveraging the complementary strengths of both organizations to advance important research for the benefit of patients."

The new collaboration continues to leverage Congruence’s computational drug discovery engine, Revenir, which systematically captures the biophysical features of proteins in different functional states to enable a highly differentiated approach to small-molecule discovery.

Congruence’s wholly owned program directed to MC4R-deficient genetic obesity is entering a Phase 1/1b clinical study this month. In the next few weeks, Congruence will also nominate development candidates for each of its programs directed to GBA1-driven Parkinson’s Disease and Alpha-1 Antitrypsin deficiency.

"Congruence’s advanced computational discovery engine is attracting growing global attention with its lead program entering clinical development. We are honored that our ongoing collaboration with Congruence is expanding beyond oncology to other priority areas including both neurology and immunology," said Seishi Katsumata, Corporate Officer / Executive Director, Discovery & Research of Ono. "Through this partnership, we will be committed to accelerating the drug development so that we can deliver innovative new medicines to patients with unmet medical needs as quickly as possible."

Under the terms of the new agreement announced today, Congruence will receive an upfront payment and is eligible to receive additional payments upon the achievement of certain milestones in discovery, development, approval and commercialization – in addition to tiered royalties based on annual net sales of related products. Moreover, Ono will reimburse Congruence for the internal and external research costs it incurs in connection with the activities undertaken in the expanded partnership.

About Revenir Drug Discovery Platform

Revenir, Congruence’s proprietary computational drug discovery platform, captures the dynamic biophysical changes of proteins in different functional states, offering unique insights into protein function and their modulation. By examining surface features and a spectrum of biophysical descriptors across an ensemble of protein conformers, Revenir predicts small molecule induced modulation of underlying physiologic protein states. This platform-driven strategy underpins Congruence’s growing pipeline of first-in-class and best-in-class programs directed to genetically validated targets implicated in conditions associated with significant unmet medical need, supporting a readily scalable and repeatable value creation paradigm.

(Press release, Congruence Therapeutics, MAR 2, 2026, View Source [SID1234663173])

Immuneering to Present at the Leerink Global Healthcare Conference

On March 2, 2026 Immuneering Corporation (Nasdaq: IMRX), a late-stage clinical oncology company focused on keeping cancer patients alive and helping them thrive, reported that management will present at the Leerink Global Healthcare Conference, taking place in Miami, Florida, from March 9-11, 2026. Ben Zeskind, Chief Executive Officer, will discuss the company’s pipeline, platform, and business strategy.

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Format: Fireside Chat and 1×1 Investor Meetings

Date/Time: Monday, March 9, 2026, from 3:40 – 4:10 pm ET

The presentation will be webcast live and archived in the Investor Relations section of Immuneering’s website at Events & Presentations | Immuneering Corporation.

(Press release, Immuneering, MAR 2, 2026, View Source [SID1234663189])

NovaBridge to Present at the Leerink Partners 2026 Global Healthcare Conference

On March 2, 2026 NovaBridge Biosciences (Nasdaq: NBP) (NovaBridge or the Company) a global biotechnology platform company committed to accelerating access to innovative medicines, reported that NovaBridge’s management team will participate in the upcoming Leerink Partners 2026 Global Healthcare Conference being held on March 8-11, 2026.

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Conference details are as follows:

Leerink Partners Global Healthcare Conference
Format: Fireside Chat
Date: Wednesday, March 11, 2026
Time: 8:00 AM ET
Webcast Link: Here

The webcast of the company presentation will be accessible on the News & Events page of the NovaBridge website for 90 days.

(Press release, NovaBridge Biosciences, MAR 2, 2026, View Source [SID1234663205])

Pulmatrix Announces Termination of Prior Planned Merger and Continues Pursuit of Alternative Merger Opportunities

On March 2, 2026 Pulmatrix ("Pulmatrix" or the "Company") (Nasdaq: PULM), a biopharmaceutical company that has focused on the development of novel inhaled therapeutic products intended to prevent and treat migraine and respiratory diseases with important unmet medical needs using its patented iSPERSE technology, reported that on February 28, 2026, Cullgen Inc. notified Pulmatrix that Cullgen was terminating the Merger Agreement (as defined herein) and related transactions thereunder. This termination follows the December 2025 announcing that Pulmatrix and Cullgen had mutually agreed to waive the "No Solicitation" clause in the Merger Agreement in order to permit each party to explore alternate transactions in the period until closing. At this time, Pulmatrix continues to pursue alternative merger opportunities.

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Peter Ludlum, Interim Chief Executive Officer of Pulmatrix, commented, "Due to the significant delays at the Chinese Regulatory Authority (CSRC) in 2025, we initiated a process earlier this year to identify an alternative reverse merger opportunity for the Company, and we are encouraged by both the interest we’ve had to date as well as the recent increase in transaction activity within our industry."

Prior Proposed Merger with Cullgen

As previously reported, on November 13, 2024, the Company entered into an agreement and plan of merger with Cullgen, as amended by Amendment No. 1 thereto on April 7, 2025 (the "Merger Agreement" and the transactions contemplated thereunder, collectively, the "Merger").

Additional information about the Merger Agreement and the previously proposed Merger was previously disclosed in a registration statement on Form S-4 (File No. 333-284993) initially filed with the Securities and Exchange Commission (the "SEC") on February 14, 2025, as amended on April 17, 2025, and May 7, 2025, and declared effective on May 9, 2025.

On June 16, 2025, the Company held a special meeting in lieu of the annual meeting of Pulmatrix stockholders, at which meeting the Company’s stockholders approved the Merger and related proposals. The closing of the Merger was subject to certain closing conditions, including approval from the China Security Regulatory Commission which had not been obtained at the time of Cullgen’s termination.

Pulmatrix Clinical Assets and Proprietary iSPERSE Technology

iSPERSE Technology

iSPERSE, also licensed to MannKind Corporation and Cipla Technologies for certain fields of use, utilizes particles that are engineered with a small, dense and dispersible profile to exceed the performance of traditional dry powder particles as the iSPERSE particles have the dispersibility advantages of porous engineered particles. Pulmatrix believes this results in superior drug delivery compared to traditional oral and injectable forms of treatment for certain diseases.

As of December 31, 2025, Pulmatrix’s patent portfolio related to iSPERSE included approximately 149 granted patents, 18 of which are U.S.-granted patents, plus approximately 48 pending patent applications in the U.S. and other jurisdictions.
PUR3100

PUR3100, a Phase 2-ready asset, is an orally inhaled dihydroergotamine ("DHE") engineered with Pulmatrix’s iSPERSE dry powder inhalation technology for the treatment of acute migraine has a Food and Drug Administration acceptance of an Investigational New Drug ("IND") application for PUR3100 and receipt of a "study may proceed" letter to proceed with a Phase 2 study. The IND includes a Phase 2 clinical protocol where safety and preliminary efficacy of PUR3100 will be investigated in patients with acute migraine.

The Phase 2 IND builds on the Phase 1 trial results of PUR3100, which were published in 2024 in the peer-reviewed publication, Headache: The Journal of Head and Face Pain. The study showed that PUR3100 achieved peak exposures in the targeted therapeutic range and time to maximum concentration occurred at five minutes after dosing at all dosing levels. The PUR3100 dose groups also showed a lower incidence of nausea and no vomiting compared to observations of nausea and vomiting in the intravenously ("IV") administered DHE dose group.
PUR1800

PUR1800 is a Narrow Spectrum Kinase Inhibitor ("NSKI"), engineered with our iSPERSE technology, for the treatment of acute exacerbations in chronic obstructive pulmonary disease ("AECOPD"). In 2023, Pulmatrix presented complete results from a Phase 1b study of PUR1800 for AECOPD, indicating PUR1800 was well-tolerated with no observed safety signals. The topline data, along with the results from chronic toxicology studies, support the continued development of PUR1800 for the treatment of AECOPD and other inflammatory respiratory diseases.

In 2024, Pulmatrix published an abstract titled "Ex vivo evaluation of the potential for Narrow Spectrum Kinase inhibitors as a treatment for Idiopathic Pulmonary Fibrosis".
PUR1900

PUR1900, approved to proceed to a Phase 3 in India conducted by our partner Cipla, is the Company’s inhaled iSPERSE formulation of the antifungal drug itraconazole being investigated for various indications. The Company and its partner, Cipla, wound down a Phase 2b trial that the Company was operating in 2024. Cipla has continued clinical development outside the United States, and in 2025 completed their Phase 2 study in India and have been approved by India’s Central Drug Standard Control Organization to proceed with a Phase 3 clinical trial.

Pulmatrix will receive 2% royalties on any potential future net sales by Cipla outside the United States should Cipla successfully market PUR1900 outside the United States. Within the United States, the Company and Cipla share the rights 50/50 and will seek to monetize PUR1900 for indications where an orally inhaled antifungal may provide a therapeutic benefit or fulfill an unmet medical need.

(Press release, Cullgen, MAR 2, 2026, View Source [SID1234663174])

Altimmune to Participate in Upcoming Investor Conferences

On March 2, 2026 Altimmune, Inc. (Nasdaq: ALT), a late clinical-stage biopharmaceutical company developing pemvidutide to address serious liver diseases, reported that management will participate and be available for one-on-one meetings at the following investor conferences:

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Leerink Global Healthcare Conference
Monday, March 9, 2026 – One-on-one meetings
Wednesday, March 11, 2026 – Fireside chat at 9:20 a.m. ET
Citizens Life Sciences Conference
Tuesday, March 10, 2026 – One-on-one meetings
Fireside chat at 2:15 p.m. ET
Jefferies Biotech on the Beach Summit
Wednesday, March 11, 2026 – One-on-one meetings only
Barclays 28th Annual Global Healthcare Conference
Thursday, March 12, 2026 – One-on-one meetings
Fireside chat at 10:30 a.m. ET
Webcasts of the fireside chats at the Leerink, Citizens and Barclays conferences will be available via the Events section of the Altimmune website.

Registered investors may request meetings on the dates noted above via their sales contacts at the respective banks.

(Press release, Altimmune, MAR 2, 2026, View Source [SID1234663190])