Skip to main content
Log in

Neuromotor tolerability and behavioural characterisation of cannabidiolic acid, a phytocannabinoid with therapeutic potential for anticipatory nausea

  • Original Investigation
  • Published:
Psychopharmacology Aims and scope Submit manuscript

Abstract

Rationale

Anticipatory nausea (AN) is a poorly controlled side effect experienced by chemotherapy patients. Currently, pharmacotherapy is restricted to benzodiazepine anxiolytics, which have limited efficacy, have significant sedative effects and induce dependency. The non-psychoactive phytocannabinoid, cannabidiolic acid (CBDA), has shown considerable efficacy in pre-clinical AN models, however determination of its neuromotor tolerability profile is crucial to justify clinical investigation. Provisional evidence for appetite-stimulating properties also requires detailed investigation.

Objectives

This study aims to assess the tolerability of CBDA in locomotor activity, motor coordination and muscular strength tests, and additionally for ability to modulate feeding behaviours.

Methods

Male Lister Hooded rats administered CBDA (0.05–5 mg/kg; p.o.) were assessed in habituated open field (for locomotor activity), static beam and grip strength tests. A further study investigated whether these CBDA doses modulated normal feeding behaviour. Finally, evidence of anxiolytic-like effects in the habituated open field prompted testing of 5 mg/kg CBDA for anxiolytic-like activity in unhabituated open field, light/dark box and novelty-suppressed feeding (NSF) tests.

Results

CBDA had no adverse effects upon performance in any neuromotor tolerability test, however anxiolytic-like behaviour was observed in the habituated open field. Normal feeding behaviours were unaffected by any dose. CBDA (5 mg/kg) abolished the increased feeding latency in the NSF test induced by the 5-HT1AR antagonist, WAY-100,635, indicative of anxiolytic-like effects, but had no effect on anxiety-like behaviour in the novel open field or light/dark box.

Conclusions

CBDA is very well tolerated and devoid of the sedative side effect profile of benzodiazepines, justifying its clinical investigation as a novel AN treatment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

Abbreviations

CBDA:

Cannabidiolic acid

CBD:

Cannabidiol

pCB:

Phytocannabinoid

CINV:

Chemotherapy-induced nausea and vomiting

AN:

Anticipatory nausea

CDP:

Chlordiazepoxide

NK1:

Neurokinin 1

5-HT:

5-Hydroxytryptamine

5-HT1AR:

5-Hydroxytryptamine receptor type 1A

References

Download references

Acknowledgments

This research was supported by grants to CMW and BJW by GW Pharmaceuticals and Otsuka Pharmaceuticals, and in part by the University of Reading Research Endowment Trust Fund to DIB.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Claire M Williams.

Ethics declarations

Conflict of interest

The work reported was funded in part by grants to BJW and CMW from GW Pharmaceuticals and Otsuka Pharmaceuticals. The original study concept was discussed with the sponsor (GW Pharmaceuticals) although all subsequent study design, data collection, analysis and interpretation were conducted independently by the authors. The report was approved by the sponsor company prior to submission, and the authors retain full control of all primary data.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Brierley, D.I., Samuels, J., Duncan, M. et al. Neuromotor tolerability and behavioural characterisation of cannabidiolic acid, a phytocannabinoid with therapeutic potential for anticipatory nausea. Psychopharmacology 233, 243–254 (2016). https://doi.org/10.1007/s00213-015-4100-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00213-015-4100-1

Keywords

Navigation