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Updated: May 12, 2026

Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates
Published on: May 30, 2025
In Response to "Concerns Regarding Masataka et al.'s 'Revisiting the Gateway Drug Hypothesis for Cannabis'"
Yuji Masataka1,2,3, Toshihiko Matsumoto4
1Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki, Japan.
None:
We clarify Dr. Narita's concerns by replacing subjective wording with data-based statements, emphasizing the descriptive-not causal-nature of our analysis, and noting that logistic regression was exploratory. Our findings show both progression and non-progression pathways, indicating no single dominant gateway pattern among Japanese cannabis users.
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