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Aelis Farma Announces the Final Analysis of the Landmark Phase 2B Clinical Trial in Cannabis Use Disorder (CUD) with the CB1-SSi AEF0117

In This Article:

  • The purpose of this pioneering Phase 2B trial was to show that AEF0117 reduces cannabis use and to determine the endpoints and optimal dosage to be used in future studies. AEF0117 is the first of a new pharmacological class, the CB1-SSi.

  • AEF0117 was well-tolerated with no safety concerns identified, notably, AEF0117 did not cause the psychiatric side effects (e.g., anxiety, depression and suicidality) induced by the current CB1-antagonists that are not signalling specific.

  • In the overall study population, the highest dose of AEF0117 (1mg) induced a non-statistically significant increase in the proportion of responders (+100% vs placebo) reaching the primary endpoint (cannabis use ≤1 day per week) and achieving abstinence (+200%). AEF0117 1mg also reduced the number of days of cannabis use per week, an effect that increased over time and was highest and close to statistical significance during the last month of treatment (-16% vs placebo; P=0.077).

  • In the subgroup of patients (24%) with a high commitment to quit their cannabis use (measured by the Motivation to quit ladder), the effects of AEF0117 1mg were amplified for the primary (cannabis use ≤1 day per week) and secondary (abstinence and cannabis use ≤2 days per week) qualitative endpoints (+228% vs placebo in all cases) and for the number of days of cannabis use (-55% vs placebo; P=0.038) as well as for the amount of cannabis smoked per day (-76% vs placebo; P=0.029).

  • The decrease in cannabis use induced by AEF0117 1mg is consistent across studies. Thus, when the data of the Phase 2B are analysed in a population of patients similar to the one of the previous Phase 2A, i.e. patients with moderate CUD, comparable and statistically significant reductions in cannabis use were found.

  • These findings confirm that AEF0117 is safe, pharmacologically active and able to reduce cannabis use, validating the new CB1-SSi pharmacological class. They also indicate that future studies should explore higher doses of AEF0117 over longer treatment periods in patients highly motivated to reduce their cannabis consumption.

BORDEAUX, France, March 26, 2025--(BUSINESS WIRE)--Regulatory News:

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in French at 05:30pm CET and in English at 07:30pm CET (02:30pm ET)

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Aelis Farma (ISIN: FR0014007ZB4 – Ticker: AELIS), is a clinical-stage biopharmaceutical company specializing in the development of treatments for brain and peripheral diseases.

In September 2024, Aelis Farma released preliminary results from the Phase 2B trial with AEF0117. AEF0117 is the first of a new pharmacological class named the Signalling Specific inhibitors of the CB1 receptor of the endocannabinoid system (CB1-SSi). Although AEF0117 did not show a statistically significant effect on the primary endpoint, encouraging trends were observed demonstrating AEF0117’s pharmacological activity and safety. After analysis of the preliminary results, Indivior PLC has communicated that it did not intend to exercise the option it had acquired for a global licence of AEF0117.