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Author: Anoma Ranaweera, Medical Writer, Auckland, New Zealand. DermNet Editor in Chief: Adjunct A/Prof Dr Amanda Oakley, Dermatologist, Hamilton, New Zealand. Copy edited by Gus Mitchell. December 2019.
Calcipotriol/betamethasone dipropionate ointment and gel are topical medications for the treatment of plaque psoriasis [1–3]. The brand names of calcipotriol/betamethasone diproprionate are Daivobet® 50/500 ointment and Daivobet® 50/500 gel. Calcipotriol is called calcipotriene in some countries. An alternative brand name for the combination is Dovobet®.
Calcipotriol/betamethasone diproprionate ointment and gel are available in New Zealand with a doctor’s prescription and are fully funded by PHARMAC. The New Zealand marketing authorisation for Daivobet is held by LEO Pharma.
Psoriasis suitable for treatment with calcipotriol/betamethasone dipropionate
In an 8-week, multicentre, randomised, double-blind study, patients with scalp psoriasis were randomised to treatment with the two-compound scalp formulation (calcipotriol 50 mcg/g plus betamethasone 0.5 mg/g, as dipropionate) (n = 541), betamethasone 0.5 mg/g (as dipropionate) in the same vehicle (n = 556), calcipotriol 50 mcg/g in the same vehicle (n = 272) or vehicle alone (n = 136) .
A long-term (52-week) randomised, double-blind study in 869 patients with moderate-to-severe scalp psoriasis investigated the efficacy of the two-compound formulation (calcipotriol 50 mcg/g plus betamethasone dipropionate 0.5 mg/g) for scalp psoriasis in comparison to calcipotriol .
According to the Investigator's Global Assessment of disease severity, the number of patients who reached ‘satisfactorily controlled disease’ (‘absence of disease’, ‘mild disease’ or ‘very mild disease’) was higher in the two-compound group than in the calcipotriol group.
Several large-scale, real-life studies have assessed the efficacy of calcipotriol/betamethasone gel in plaque psoriasis of the body and scalp. Besides demonstration of antipsoriatic efficacy in rigidly controlled clinical trials, confirmation of effectiveness in the real-life setting where factors such as patient preference, satisfaction, and adherence to treatment become increasingly relevant.
Pharmacoeconomic analyses have shown calcipotriene/betamethasone dipropionate gel formulations are more cost-effective than other topical therapies for psoriasis .
The primary objective was to investigate the safety of two treatment regimens involving use of the two-compound calcipotriol/betamethasone diproprionate product over 52 weeks .
Six hundred and thirty-four patients were randomised double-blind to treatment (once daily, when required) with either:
The calcipotriol/betamethasone combination was more effective and had a more rapid onset of action than either active constituent used alone, and was well tolerated. It is safe to transfer patients from betamethasone/calcipotriol to calcipotriol alone, with the maintenance of clinical effect.
A cost-utility analysis from a Swedish healthcare payer’s perspective used a decision-tree model with a 12-week time horizon to evaluate the cost-effectiveness of calcipotriol/betamethasone foam versus calcipotriol/betamethasone ointment .
If you are not based in New Zealand, we suggest you refer to your national drug approval agency for further information about medicines (eg, the Australian Therapeutic Goods Administration and the US Food and Drug Administration) or a national or state-approved formulary (eg, the New Zealand Formulary and New Zealand Formulary for Children and the British National Formulary and British National Formulary for Children).
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