Study register · detail
Mixed
GRADE
Moderate
59 citations
Samplen = 80 Pat.
ControlI.v. metoclopramide + i.v. dexamethasone 20…
EndpointComplete control of…
Blindingoffen
DesignRCT (aktiv-kontrolliert, Crossover)
Cannabinoidthc
Max. dose8.0 mg
Routeoral
Key finding
Metoclopramide/dexamethasone was objectively superior, however carboplatin patients preferred nabilone/prochlorperazine due to better tolerability.
Summary
n=80 chemotherapy patients (cisplatin/cisplatin analogues), nabilone 2 mg + prochlorperazine 5 mg orally vs. metoclopramide i.v. + dexamethasone; complete control of nausea and vomiting: 19% (nabilone arm) vs. 32% (metoclopramide arm), overall emesis p=0.02 in favour of metoclopramide. Carboplatin subgroup: patient preference for nabilone (16 vs. 5, p=0.013). Nabilone was better tolerated and preferred in carboplatin regimens.
P
PopulationAdults undergoing cisplatin- or cisplatin analogue-containing chemotherapy (first cycle), n=80
I
InterventionNabilone 2 mg orally + prochlorperazine 5 mg orally every 12 h, 4 doses
C
ControlI.v. metoclopramide (2 mg/kg loading + 3 mg/kg infusion over 8 h) + i.v. dexamethasone 20 mg
O
OutcomeComplete control of nausea/vomiting: 32% (metoclopramide/dexamethasone) vs. 19% (nabilone/prochlorperazine); emesis scale significantly in favour of metoclopramide/dexamethasone (p=0,02); patient preference, however, not significantly different (31 vs. 26; p n.s.), in carboplatin patients preference for nabilone/prochlorperazine (16 vs. 5; p=0,013)
Confidence in the evidence
Moderate
The third of four GRADE levels, the effect estimate is probably reliable.
Downgraded for
Imprecision
Quality profile
Sample size
★★★★★
Blinding
Open-label
Effect size
Mixed
Citations / year
★★★★★
Authors
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Abstract
Eighty patients receiving their first course of chemotherapy with regimens containing cisplatin or cisplatin analogues entered this open crossover study comparing nabilone 2 mg and prochlorperazine 5 mg given orally every 12 h for four doses against metoclopramide 2 mg/kg loading dose intravenously (i.v.), then 3 mg/kg as an (i.v.) infusion over 8 h and dexamethasone 20 mg (i.v.) over 3-5 min at the time of chemotherapy. There was complete control of nausea and vomiting in 24 patients (32%) given metoclopramide and dexamethasone compared to 14 patients (19%) given nabilone and prochlorperazine. For the 70 patients who completed the crossover assessment of emesis on a linear analogue scale significantly favoured metoclopramide and dexamethasone (P = 0.02). However, there was no overall patient preference for the metoclopramide and dexamethasone combination (nabilone and prochlorperazine 31 vs. metoclopramide and dexamethasone 26; 13 no preference), because a significant proportion of the patients receiving the cisplatin analogue carboplatin preferred nabilone and prochlorperazine (16 vs. 5; 1 no preference; P = 0.013). For patients receiving cisplatin chemotherapy metoclopramide and dexamethasone remains the antiemetic of choice but for regimens containing carboplatin, nabilone and prochlorperazine is better tolerated and preferred by the patients.
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