Abstract | BACKGROUND: OBJECTIVE: To compare the efficacy and safety of DFD-01 to its vehicle for the treatment of moderate plaque psoriasis over 4 weeks. METHODS: Two Phase 3 trials enrolled adults with moderate psoriasis (Investigator Global Assessment [ IGA]=3; 10-20% body surface area [BSA]) and randomized them 2:1 to DFD-01 or Vehicle. Products were applied twice daily to affected areas for 28 days. Treatment success was defined as an IGA=0 or 1 and ≥ 2-grade improvement from baseline. Primary endpoint was the proportion of subjects achieving treatment success at day 15. RESULTS: Moderate psoriasis subjects were enrolled in Study 1 (174 DFD-01; 87 Vehicle) and Study 2 (182 DFD-01; 95 Vehicle). Mean BSA was 13-14%. Treatment success was achieved in significantly more subjects using DFD-01 than Vehicle at day 15 in both Study 1 (P<0.001) and Study 2 (P=0.002), and at day 29 (both studies P<0.001). Treatment success with DFD-01 was significant at day 8 in Study 1 (P=0.003) but not in Study 2 (P=0.156). Erythema, scaling, and plaque elevation scores of target lesions were significantly reduced as early as day 4 with DFD-01. Adverse events were similar between groups, with no increase between 2 and 4 weeks. CONCLUSION: These studies demonstrate DFD-01's excellent efficacy and safety for the treatment of extensive psoriasis (10-20% BSA). DFD-01 achieved treatment success in significantly more subjects than Vehicle after 2 and 4 weeks of treatment, and showed early onset of action with improved signs of erythema, scaling and elevation of target lesions after 4 days of treatment. This medium potency formulation provides a safe and effective choice for topical steroid treatment of psoriasis.
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Authors | Linda Stein Gold, J Mark Jackson, Melissa L F Knuckles, Jonathan S Weiss |
Journal | Journal of drugs in dermatology : JDD
(J Drugs Dermatol)
Vol. 15
Issue 3
Pg. 334-42
(Mar 2016)
ISSN: 1545-9616 [Print] United States |
PMID | 26954319
(Publication Type: Clinical Trial, Phase III, Journal Article, Randomized Controlled Trial)
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Chemical References |
- Emollients
- Glucocorticoids
- Pharmaceutical Vehicles
- betamethasone-17,21-dipropionate
- Betamethasone
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Topics |
- Administration, Topical
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Betamethasone
(administration & dosage, adverse effects, analogs & derivatives, chemistry)
- Body Surface Area
- Double-Blind Method
- Emollients
(administration & dosage, chemistry)
- Female
- Glucocorticoids
(administration & dosage, adverse effects, therapeutic use)
- Humans
- Male
- Middle Aged
- Pharmaceutical Vehicles
(administration & dosage, chemistry)
- Psoriasis
(drug therapy)
- Skin
(drug effects)
- Treatment Outcome
- Young Adult
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