Neurocrine Biosciences Announces First-Patient Dosed in Phase 2 Clinical Study Evaluating NBI-1070770 in Adults with Major Depressive Disorder

NBI-1070770 Phase 2 Study Illustration

The clinical trial process for NBI-1070770, an investigational compound for major depressive disorder

Neurocrine Biosciences, Inc. (Nasdaq: NBIX) today announced that the first patient has been randomized for its Phase 2 clinical study to evaluate the efficacy, safety, and tolerability of investigational compound NBI-1070770 in adults with major depressive disorder. NBI-1070770 is a novel, selective, and orally active, negative allosteric modulator (NAM) of the NR2B subunit-containing N-methyl-D-aspartate (NMDA NR2B) receptor.  

“Based upon our Phase 1 first-in-human study, we are excited to bring this novel oral compound, which acts through a clinically validated mechanism of action, into clinical development as a potential treatment for major depressive disorder,” said Eiry W. Roberts, M.D., Chief Medical Officer at Neurocrine Biosciences. “The selectivity of NBI-1070770 for the NMDA NR2B receptor has the potential to benefit patients who have moderate to severe depression.”  

The NBI-1070770 Phase 2 multi-center, randomized, double-blind, placebo-controlled study will enroll approximately 72 adults and is being conducted at centers throughout the United States. The study will evaluate the safety and efficacy of NBI-1070770 in subjects with major depressive disorder compared to placebo on improving symptoms of depression as measured by the Montgomery-Åsberg Depression Rating Scale. For more information about the Phase 2 study (NBI-1070770-MDD2029), visit

Neurocrine Biosciences acquired the rights to develop and commercialize NBI-1070770 from Takeda Pharmaceutical Company, Ltd.


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