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MindBio Therapeutics Announces Results from Landmark Phase 2B Microdosing in Depression Trail
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Vancouver, British Columbia – TheNewswire - Nov 13, 2025 – MindBio Therapeutics Corp. (CSE: MBIO); (Frankfurt: WF6), (the “Company” or “MindBio”), a biotechnology company leading clinical health research and product development has completed its initial assessment of results from its recently completed Phase 2B clinical trial in patients with Major Depressive Disorder (MDD).
Background
Theories suggest that repeatedly taking low doses of a psychedelic medicine (microdosing) may have benefits for mental health symptoms. This Phase 2B trial aimed to determine the superiority of repeated microdosed LSD, also known as MB22001 – a microdose of Lysergic Acid Diethylamide, over placebo to treat MDD.
Prior to this trial, the Company had sponsored two successfully completed trials. A Phase 1 randomised, placebo-controlled trial in 80 healthy individuals and a second Phase 2A open label trial in 20 patients with MDD. The Phase 1 trial yielded statistically significant dose day related elevations in mood, such as enhanced feelings of wellbeing, increased energy and feelings of social connectivity, creativity and reduced irritability and anger. Statistically significant and clinically meaningful improvements in sleep were also noted. The Phase 2A open label trial in patients with MDD yielded a 60% reduction in depressive symptoms at the end of the trial and a 72% reduction in depressive symptoms sustained 6 months post treatment. The data from both these trials was sufficiently supportive of the Company persisting to Phase 2B trials.
The Company’s approach to data collection and utilisation in clinical trials has led to many important discoveries. Notably, we made the groundbreaking speech and LSD prediction discovery in that we can predict whether someone is microdosing LSD by using patient’s speech. This has already led to the commercialisation of the Booze AI app, app.booze-ai.com which in turn has become a world first prediction model for alcohol intoxication and blood alcohol concentration estimation using speech analysis over a smartphone.
Methods
This clinical trial was a single-site, randomised phase 2B clinical trial. Physically healthy adults with MDD and no history of psychotic disorders were included. Participants took 16 LSD or active placebo (caffeine) doses twice weekly, starting at 8 µg of LSD and subsequently determined by a titration scheme (4 – 20 µg) in a double-dummy design. Concurrent use of antidepressants was allowed with no difference in response between antidepressant users and non-antidepressant users recorded. Participants were encouraged to engage in a self-selected beneficial activity when dosing. Participants, investigators and efficacy assessors were blinded to the allocation. Primary efficacy was depression severity measured by the Montgomery-Åsberg Depression Rating Scale (MADRS) at the eight-week point.
Findings
89 people (mean age 38.3 +- 10.3 years; 53 [60%] females) were randomised to placebo (n = 45) or LSD (n = 44). The placebo group had a MADRS score of 23.0 (SD = 6.4) at Baseline and 14.6 (SD = 8.6) at eight weeks, presenting a 36.4% reduction. The LSD group had a MADRS score of 23.6 (SD = 6.5) at baseline and 16.6 (SD = 8.1) at eight weeks, presenting a 29.89% reduction. There was no effect of drug allocation on depression severity (MADRS) score at the eight-week time-point (p = 0.5469).
The safety profile of LSD was favourable. Adverse event rates were low. The most frequent adverse events on dosing days were abdominal pain and digestive issues (placebo n [%]; LSD n [%]: 10 [22%]; 13 [29%]), blood pressure and cardiovascular issues (11 [25%]; 12 [27%]), and headache (10 [22%]; 9 [20%]). No serious adverse events occurred in the LSD arm, and the regimen was well-tolerated.
Interpretation
Repeated microdosed LSD is not effective for treating major depressive disorder.
However, there is strong evidence to suggest that there are dose day related mood elevating effects and improvements to sleep resulting from microdosed LSD in healthy individuals.
The data collected from clinical trials continues to inform the Company’s product development activities and the development of novel technologies using AI and machine learning such as the Booze AI app app.booze-ai.com which has already advanced its first iteration into consumer sales and is working towards potential enterprise level opportunities in drug and alcohol intoxication detection using speech analysis.
For further information, please contact:
Justin Hanka, Chief Executive Officer
61 433140886
justin@mindbiotherapeutics.com
About MindBio Therapeutics
MindBio Therapeutics Corp. (CSE: MBIO; Frankfurt: WF6) is a clinical-stage biotechnology company headquartered in Vancouver, British Columbia, that for several years has been conducting clinical trials and is focused on developing novel treatments for mental health disorders and health prediction technologies using AI and machine learning.
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