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Tonix Pharmaceuticals Announces First Patient Enrolled in Phase 2 HORIZON Study of TNX-102 SL for the Treatment of Major Depressive Disorder (MDD)

$TNXPPress releaseJun 29, 2026, 7:25 AM ETRead the release

Tonix Pharmaceuticals enrolled the first patient in the HORIZON Phase 2 study, evaluating TNX-102 SL as a first-line monotherapy for Major Depressive Disorder (MDD). The potentially pivotal study aims to enroll approximately 360 patients across 30 U.S. sites over 6 weeks, with the primary endpoint measuring change in the Montgomery-Åsberg Depression Rating Scale (MADRS) total score.

Key figures

Drug Name
TNX-102 SL
Phase Of Trial
Phase 2
Sites
30
Dosage mg
5.6
Patients expected
360
Treatment duration weeks
6

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