In:
Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. 12008-12008
Abstract:
12008 Background: The aim of this multi-centre, randomised, double-blinded, placebo-controlled, phase 2/3 trial is to determine efficacy of addition of oral cannabis in adults with any malignancy of any stage, experiencing CINV during moderate-highly emetogenic intravenous chemotherapy, despite guideline-consistent anti-emetic prophylaxis, requiring ≥ 2 chemotherapy cycles. Here we report the crossover phase 2 component results. Methods: Treatment consisted of 1 cycle of oral THC 2.5mg/CBD 2.5mg (TN-TC11M) capsules tds days -1 to 5 and 1 cycle matching placebo in a crossover design, then blinded patient preference for a 3 rd cycle. Primary end-point is difference in proportion of patients with ‘complete response’ (no emesis & no use of rescue medications) during 0-120 hours from chemotherapy between cycles. 80 patients provides 80% power with 2p of 0.1 to detect a 20% difference. Results: 81 patients recruited (2016-9). 72 completing 2 cycles are included in efficacy analyses. 78 not withdrawing consent are included in safety analyses. Median age was 55 years (range 29-80), 78% were female, 42% report historic cannabis use, 55% were treated with curative intent. Most common regimens were AC (26%), FOLFOX (17%). All received steroids & 5-HT3 antagonist, 79% received NK-1 antagonist, 4% received olanzapine. Efficacy is shown in table. 83% preferred cannabis to placebo. Most common bothersome cannabinoid-related adverse events (cannabis, placebo) were sedation (19%,4%), dizziness (10%,1%), disorientation (3%,0%). No SAEs were attributed to THC/CBD. Conclusions: Addition of oral THC/CBD to standard anti-emetics was associated with less nausea & vomiting but additional side effects. Most preferred THC/CBD to placebo. Based on these positive results, the definitive parallel phase 3 trial component continues (additional n=170). Acknowledgements: Trial participants, investigators, research staff. Funding from NSW Government Dept of Health. Clinical trial information: ACTRN12616001036404 . [Table: see text]
Type of Medium:
Online Resource
ISSN:
0732-183X
,
1527-7755
DOI:
10.1200/JCO.2020.38.15_suppl.12008
Language:
English
Publisher:
American Society of Clinical Oncology (ASCO)
Publication Date:
2020
detail.hit.zdb_id:
2005181-5
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