Evidence map›Paper›PMID 26139312›Full record

ArticleJournal of analytical toxicology2015

Nonsmoker Exposure to Secondhand Cannabis Smoke. III. Oral Fluid and Blood Drug Concentrations and Corresponding Subjective Effects.

Edward J Cone, George E Bigelow, Evan S Herrmann, John M Mitchell, Charles LoDico, Ronald Flegel, Ryan Vandrey

Abstract read
In one paragraph

Article in Journal of analytical toxicology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  20. Pediatric Death Due to Myocarditis After Exposure to Cannabis.Clinical practice and cases in emergency medicine · 2017
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Edward J ConeBehavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, Baltimore, MD, USA edwardjcone@gmail.com.
George E BigelowBehavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Evan S HerrmannBehavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
John M MitchellRTI International, Research Triangle Park, NC, USA.
Charles LoDicoDivision of Workplace Programs (DWP), Substance Abuse and Mental Health Services Administration (SAMHSA), Rockville, MD, USA.
Ronald FlegelDivision of Workplace Programs (DWP), Substance Abuse and Mental Health Services Administration (SAMHSA), Rockville, MD, USA.
Ryan VandreyBehavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Funding

Institute for Clinical and Translational Research (UL1)UL1RR025005 · NCRR · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2007 to 2011
$75.8M
Institute for Clinical and Translational ResearchUL1TR001079 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2013 to 2017
$60.1M
HUMAN BEHAVIORAL PHARMACOLOGY OF SUBSTANCE ABUSET32DA007209 · NIDA · JOHNS HOPKINS UNIVERSITY · PI Eric C. Strain, Elise M Weerts · 1985 to 2026
$12.9M
Translational Clinical Research Fellowship on Substance Use DisordersT32DA007294 · NIDA · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI Frances Rudnick Levin, Diana M Martinez · 1993 to 2026
$9.3M
NCATS NIH HHS UL1 TR001079NCRR NIH HHS UL1-RR025005NIDA NIH HHS T32 DA007294NIDA NIH HHS T32-DA07209
6 · The paper itself

Abstract

The increasing use of highly potent strains of cannabis prompted this new evaluation of human toxicology and subjective effects following passive exposure to cannabis smoke. The study was designed to produce extreme cannabis smoke exposure conditions tolerable to drug-free nonsmokers. Six experienced cannabis users smoked cannabis cigarettes [5.3% Δ(9)-tetrahydrocannabinol (THC) in Session 1 and 11.3% THC in Sessions 2 and 3] in a closed chamber. Six nonsmokers were seated alternately with smokers during exposure sessions of 1 h duration. Sessions 1 and 2 were conducted with no ventilation and ventilation was employed in Session 3. Oral fluid, whole blood and subjective effect measures were obtained before and at multiple time points after each session. Oral fluid was analyzed by ELISA (4 ng/mL cutoff concentration) and by LC-MS-MS (limit of quantitation) for THC (1 ng/mL) and total THCCOOH (0.02 ng/mL). Blood was analyzed by LC-MS-MS (0.5 ng/mL) for THC, 11-OH-THC and free THCCOOH. Positive tests for THC in oral fluid and blood were obtained for nonsmokers up to 3 h following exposure. Ratings of subjective effects correlated with the degree of exposure. Subjective effect measures and amounts of THC absorbed by nonsmokers (relative to smokers) indicated that extreme secondhand cannabis smoke exposure mimicked, though to a lesser extent, active cannabis smoking.

Indexed as

AffectAir Pollution, IndoorChromatography, LiquidDronabinolEnzyme-Linked Immunosorbent AssayHumansInhalation ExposureMarijuana SmokingRisk AssessmentSalivaSmokeTandem Mass SpectrometryTime FactorsDronabinolSmoke

Identifiers

PMID26139312
PMCPMC4627404

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.