CBD Cannabis Extract: Pharmacokinetic Studies

Summary

The initial goal is to ascertain the pharmacokinetic (PK) profile of CBD (cannabidiol) after a single dose of CBDE (cannabidiol extract), although the plan is to extend these studies to multiple dose administrations in the future, since it is likely that (cannabidiol) and/or its metabolites will show some accumulation. These studies will provide detailed information that will inform the continuation and expansion of CBDE in other research projects.

Timeline

Start

2021-02-01

Primary completion

2021-12-01

Completion

2021-12-01

Publications

• Background Wolff V, Jouanjus E. Strokes are possible complications of cannabinoids use. Epilepsy Behav. 2017 May;70(Pt B):355-363. doi: 10.1016/j.yebeh.2017.01.031. Epub 2017 Feb 23.
• Results Bonn-Miller MO, Loflin MJE, Thomas BF, Marcu JP, Hyke T, Vandrey R. Labeling Accuracy of Cannabidiol Extracts Sold Online. JAMA. 2017 Nov 7;318(17):1708-1709. doi: 10.1001/jama.2017.11909.
• Results Borchardt D. Hemp cannabis product sales projected to hit $1 billion in 3 years. Forbes 2017, August, 23.
• Results Carvalho RK, Andersen ML, Mazaro-Costa R. The effects of cannabidiol on male reproductive system: A literature review. J Appl Toxicol. 2020 Jan;40(1):132-150. doi: 10.1002/jat.3831. Epub 2019 Jul 17.
• Results Devinsky O, Marsh E, Friedman D, Thiele E, Laux L, Sullivan J, Miller I, Flamini R, Wilfong A, Filloux F, Wong M, Tilton N, Bruno P, Bluvstein J, Hedlund J, Kamens R, Maclean J, Nangia S, Singhal NS, Wilson CA, Patel A, Cilio MR. Cannabidiol in patients with treatment-resistant epilepsy: an open-label interventional trial. Lancet Neurol. 2016 Mar;15(3):270-8. doi: 10.1016/S1474-4422(15)00379-8. Epub 2015 Dec 24.
• Results Devinsky O, Cross JH, Laux L, Marsh E, Miller I, Nabbout R, Scheffer IE, Thiele EA, Wright S; Cannabidiol in Dravet Syndrome Study Group. Trial of Cannabidiol for Drug-Resistant Seizures in the Dravet Syndrome. N Engl J Med. 2017 May 25;376(21):2011-2020. doi: 10.1056/NEJMoa1611618.
• Results Devinsky O, Patel AD, Thiele EA, Wong MH, Appleton R, Harden CL, Greenwood S, Morrison G, Sommerville K; GWPCARE1 Part A Study Group. Randomized, dose-ranging safety trial of cannabidiol in Dravet syndrome. Neurology. 2018 Apr 3;90(14):e1204-e1211. doi: 10.1212/WNL.0000000000005254. Epub 2018 Mar 14.
• Results Ewing LE, Skinner CM, Quick CM, Kennon-McGill S, McGill MR, Walker LA, ElSohly MA, Gurley BJ, Koturbash I. Hepatotoxicity of a Cannabidiol-Rich Cannabis Extract in the Mouse Model. Molecules. 2019 Apr 30;24(9):1694. doi: 10.3390/molecules24091694.
• Results Ewing LE, McGill MR, Yee EU, Quick CM, Skinner CM, Kennon-McGill S, Clemens M, Vazquez JH, McCullough SS, Williams DK, Kutanzi KR, Walker LA, ElSohly MA, James LP, Gurley BJ, Koturbash I. Paradoxical Patterns of Sinusoidal Obstruction Syndrome-Like Liver Injury in Aged Female CD-1 Mice Triggered by Cannabidiol-Rich Cannabis Extract and Acetaminophen Co-Administration. Molecules. 2019 Jun 17;24(12):2256. doi: 10.3390/molecules24122256.
• Results Foster BC, Abramovici H, Harris CS. Cannabis and Cannabinoids: Kinetics and Interactions. Am J Med. 2019 Nov;132(11):1266-1270. doi: 10.1016/j.amjmed.2019.05.017. Epub 2019 May 30.
• Results Grof CPL. Cannabis, from plant to pill. Br J Clin Pharmacol. 2018 Nov;84(11):2463-2467. doi: 10.1111/bcp.13618. Epub 2018 May 24.
• Results (Harvey et al; Ujvary and Hanus; Jiang et al; Huestis, etc.1999): CBD is a potent inhibitor of CYP450 isozymes, primarily CYP2C and CYP3A isoforms, in in vitro and animal models
• Results Huestis MA, Solimini R, Pichini S, Pacifici R, Carlier J, Busardo FP. Cannabidiol Adverse Effects and Toxicity. Curr Neuropharmacol. 2019;17(10):974-989. doi: 10.2174/1570159X17666190603171901.
• Results H.R.2 - Agriculture Improvement Act of 2018, Public Law No: 115-334, Dec. 20, 2018.
• Results McCoy B, Wang L, Zak M, Al-Mehmadi S, Kabir N, Alhadid K, McDonald K, Zhang G, Sharma R, Whitney R, Sinopoli K, Snead OC 3rd. A prospective open-label trial of a CBD/THC cannabis oil in dravet syndrome. Ann Clin Transl Neurol. 2018 Aug 1;5(9):1077-1088. doi: 10.1002/acn3.621. eCollection 2018 Sep.
• Results Morrison G, Crockett J, Blakey G, Sommerville K. A Phase 1, Open-Label, Pharmacokinetic Trial to Investigate Possible Drug-Drug Interactions Between Clobazam, Stiripentol, or Valproate and Cannabidiol in Healthy Subjects. Clin Pharmacol Drug Dev. 2019 Nov;8(8):1009-1031. doi: 10.1002/cpdd.665. Epub 2019 Feb 21.
• Results Pamplona FA, da Silva LR, Coan AC. Corrigendum: Potential Clinical Benefits of CBD-Rich Cannabis Extracts Over Purified CBD in Treatment-Resistant Epilepsy: Observational Data Meta-analysis. Front Neurol. 2019 Jan 10;9:1050. doi: 10.3389/fneur.2018.01050. eCollection 2018.
• Results Personal statement from principal investigator, Dr. John Ingram, Dept. of Pediatrics, University of Mississippi Medical Center on his experience with "Cannabidiol (CBD) Cannabis Extract Oral Solution for Drug Resistant Pediatric Epilepsy (Compassionate Use)," April 18, 2018.
• Results Purohit V, Rapaka R, Shurtleff D. Role of cannabinoids in the development of fatty liver (steatosis). AAPS J. 2010 Jun;12(2):233-7. doi: 10.1208/s12248-010-9178-0. Epub 2010 Mar 5.
• Results Russo EB. Beyond Cannabis: Plants and the Endocannabinoid System. Trends Pharmacol Sci. 2016 Jul;37(7):594-605. doi: 10.1016/j.tips.2016.04.005. Epub 2016 May 11.
• Results Russo EB. Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. Br J Pharmacol. 2011 Aug;163(7):1344-64. doi: 10.1111/j.1476-5381.2011.01238.x.
• Results Szaflarski JP, Bebin EM, Cutter G, DeWolfe J, Dure LS, Gaston TE, Kankirawatana P, Liu Y, Singh R, Standaert DG, Thomas AE, Ver Hoef LW; UAB CBD Program. Cannabidiol improves frequency and severity of seizures and reduces adverse events in an open-label add-on prospective study. Epilepsy Behav. 2018 Oct;87:131-136. doi: 10.1016/j.yebeh.2018.07.020. Epub 2018 Aug 9.
• Results Taylor L, Gidal B, Blakey G, Tayo B, Morrison G. A Phase I, Randomized, Double-Blind, Placebo-Controlled, Single Ascending Dose, Multiple Dose, and Food Effect Trial of the Safety, Tolerability and Pharmacokinetics of Highly Purified Cannabidiol in Healthy Subjects. CNS Drugs. 2018 Nov;32(11):1053-1067. doi: 10.1007/s40263-018-0578-5.
• Results Taylor L, Crockett J, Tayo B, Morrison G. A Phase 1, Open-Label, Parallel-Group, Single-Dose Trial of the Pharmacokinetics and Safety of Cannabidiol (CBD) in Subjects With Mild to Severe Hepatic Impairment. J Clin Pharmacol. 2019 Aug;59(8):1110-1119. doi: 10.1002/jcph.1412. Epub 2019 Mar 28.
• Results Tzadok M, Uliel-Siboni S, Linder I, Kramer U, Epstein O, Menascu S, Nissenkorn A, Yosef OB, Hyman E, Granot D, Dor M, Lerman-Sagie T, Ben-Zeev B. CBD-enriched medical cannabis for intractable pediatric epilepsy: The current Israeli experience. Seizure. 2016 Feb;35:41-4. doi: 10.1016/j.seizure.2016.01.004. Epub 2016 Jan 6.
• Results Wang YH, Avula B, ElSohly MA, Radwan MM, Wang M, Wanas AS, Mehmedic Z, Khan IA. Quantitative Determination of Delta9-THC, CBG, CBD, Their Acid Precursors and Five Other Neutral Cannabinoids by UHPLC-UV-MS. Planta Med. 2018 Mar;84(4):260-266. doi: 10.1055/s-0043-124873. Epub 2017 Dec 20.

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