Trial reportThe International journal on drug policy2025
Impact of Delta-8-THC warning labels on perceived intoxication, harm, and susceptibility among adolescents.
Trial report in The International journal on drug policy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Content Analysis of Derived Intoxicating Cannabis Vape Product Attributes and Marketing In an Online Retail Environment.Substance use & misuse · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
backgroundYouth use of hemp-derived cannabis products containing psychoactive Δ8-tetrahydrocannabinol (delta-8-THC) is prevalent in the United States (US). Delta-8-THC is intoxicating, however delta-8-THC products are not subject to warning labeling requirements in many US states. This experiment determined effects of hypothetical cannabis warning labels on perception of delta-8-THC gummies and vape products.
methodsA mixed within-between-subject experiment was embedded into a 2023 survey of 3,647 Southern California adolescents. Participants were randomized to view photos of delta-8-THC edible and vape products under one of three conditions (control [unmodified] vs. standard size warning label [universal cannabis warning symbol, government warning text, instructions for use, and text stating it was cannabis-infused] vs. larger warning label [same as standard label with larger cannabis warning symbol]). After image exposure, we measured anticipated intoxication, perceived harm, and susceptibility to use the respective delta-8-THC products. Moderation by product type and cannabis use status were assessed.
resultsYouth who viewed delta-8-THC products with larger warning labels (vs. control) reported greater anticipated intoxication (Mean Difference[MD]==2.50, 95 %CI=0.85-4.14 on 100-point scale), and higher likelihood that delta-8-THC products are bad for their health (Risk Ratio[RR]=1.07, 95 %CI=1.02-1.12), pose at least some risk (RR=1.03, 95 %CI: 1.01-1.05), and are the same or more harmful than marijuana (RR=1.04, 95 %CI=1.01-1.07). There were no warning label effects on susceptibility and minimal differences across outcomes between larger versus standard warning labels. Warning label effects on perceived harm were stronger for delta-8-THC gummies (vs. vape) and for never vs. ever cannabis-using youth (interaction p-values < 0.05).
conclusionRequiring delta-8-THC products to conform to labeling requirements for cannabis products may increase understanding of their intoxicating effects and harm among cannabis-naïve youth. In lieu of federal regulations, states should consider implementation of delta-8-THC regulations such as labeling requirements that promote safety and reduce potential harm to youth.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.