TriGemX Bio plans SPAC merger to fund migraine drug development

On October 19, 2026, TriGemX Bio announced a definitive agreement to merge with TCGX Acquisition Corp. and become a publicly traded company. The proposed Nasdaq ticker is TGEM.

The deal is expected to provide about $246 million in gross proceeds—$160 million from a private investment and roughly $86 million in TCGX trust funds, assuming no shareholder redemptions. The combined company is valued at about $600 million post-transaction.

TriGemX plans to use the proceeds to advance elismetrep through Phase 3 trials for acute migraine, prepare an FDA application, study the drug for migraine prevention, and prepare for a possible U.S. launch.

Elismetrep is an investigational oral TRPM8 channel blocker. Its first Phase 3 results are expected in mid-2027; the drug is not approved.

The merger is expected to close in the first quarter of 2027, subject to shareholder approval and customary closing conditions.

Sources:

TriGemX Bio and TCGX Acquisition Corp. Announce Business Combination Agreement to Create Publicly Listed Company to Develop Elismetrep, A Potential First-in-Class Treatment for Migraine

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