MIRA Pharmaceuticals (MIRA) announced new in vitro preclinical data generated by Eurofins supporting the therapeutic potential of SKNY-1, a next-generation oral drug candidate being developed by SKNY Pharmaceuticals. MIRA has signed a definitive agreement to acquire SKNY, and the proposed transaction remains subject to regulatory review and shareholder approval. SKNY-1 is being developed to help individuals lose weight and quit smoking by targeting key biological pathways involved in appetite, addiction, and reward-without triggering the central nervous system side effects that have historically limited cannabinoid-based therapies. Previous CB1-targeting drugs, such as rimonabant, showed weight loss and metabolic results but were ultimately withdrawn from the market due to serious psychiatric side effects, including depression and suicidal ideation. These effects stemmed from non-selective inhibition of CB1 signaling in the brain. In contrast, in vitro studies conducted by Eurofins demonstrated that SKNY-1 acts as a biased CB1 modulator-selectively blocking the beta-arrestin signaling pathway, which is associated with cravings and compulsive behavior, while preserving G-protein signaling, which is important for emotional and cognitive stability. This selective mechanism is designed to reduce cravings and body weight without disrupting mood. In addition to CB1 modulation, SKNY-1 also interacts with the CB2 receptor, which plays a critical role in metabolic regulation and inflammation. Eurofins’ in vitro data show that SKNY-1 behaves as a partial CB2 agonist, potentially enhancing fat metabolism, reducing peripheral inflammation and improving insulin sensitivity. This dose-dependent flexibility distinguishes SKNY-1 from earlier CB1-only drugs and may enable a broader therapeutic impact on obesity-related pathways. SKNY-1 also mildly inhibits the MAO-B enzyme, helping regulate dopamine, a neurotransmitter involved in motivation, focus, and reward. Unlike older monoamine inhibitors, SKNY-1 does not inhibit MAO-A, reducing the risk of serotonin-related side effects. Importantly, the compound demonstrated no or minimal antagonist binding to dopamine receptors, further supporting its favorable CNS safety profile. While injectable GLP-1 drugs have gained market attention, they are often associated with gastrointestinal side effects and muscle loss. SKNY-1 is being developed as an oral therapy with a profile and expected mechanism that may help preserve muscle mass and improve patient adherence by avoiding injections.
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