Jeffrey L. Sugarman MD PhD,a Jonathan Weiss MD,b Emil A. Tanghetti MD,c Jerry Bagel MD,d Paul S. Yamauchi MD,e Linda Stein Gold MD,f Tina Lin, PharmD,g Gina Martin MOT,h Radhakrishnan Pillai PhD,h Robert Israel MDi
aUniversity of California, San Francisco, CA bGwinnett Dermatology, PC, and Gwinnett Clinical Research Center, Inc, Snellville, GA cCenter for Dermatology and Laser Surgery, Sacramento, CA dPsoriasis Treatment Center of Central New Jersey, East Windsor, NJ eDavid Geffen School of Medicine at UCLA, Los Angeles, CA fHenry Ford Hospital, Detroit, MI gOrtho Dermatologics, Bridgewater, NJ hDow Pharmaceutical Sciences Inc. (a division of Valeant Pharmaceuticals, North America, LLC.), Petaluma, CA iBausch Health, Bridgewater, NJ
majority of HP/TAZ subjects (85.6%) had AEs which were mild or moderate. Just over half of the HP/TAZ subjects (56.7%) had AEs, which were felt to be treatment related. Most common treatmentrelated AEs were contact dermatitis (6.3%), pruritus (2.2%), and application site pain (2.6%). AEs such as skin atrophy, telangiectasia, or folliculitis were minimal and sporadic, and not consistent. Only three subjects reported serious AEs (SAEs) following HP/TAZ treatment (1.1%). None of the SAEs were treatment-related (cellulitis staphylococcal, pneumonia/asthma, and anemia). There was no death reported in either study.
Local Skin Reactions (LSR)
Itching was the most common LSR at baseline, present in 68.0% of subjects. Subject-reported burning/stinging was less common, reported by a third of subjects (33.7%) at baseline. Investigator-reported dryness was noted in 57.3% of subjects at baseline. Most LSR at baseline were mild-to-moderate in severity.There was a rapid improvement in subject-reported itching as early as week 2 that was sustained to the end of the studies, with more gradual improvements in skin dryness and burning/stinging. By week 8, mean scores for itching, dryness, and burning/stinging were significantly lower with HP/TAZ lotion compared to vehicle (P equals 0.002, 0.018, and 0.022, respectively).Improvements in itching were maintained 4-weeks post-treatment and there were continued improvements in dryness, burning/stinging (Figure 5).
Plaque psoriasis is a chronic condition. Despite the robust data demonstrating the utility of topical steroids and tazarotene for the treatment of psoriasis, the use of this combination has not been widely adopted and has largely been forgotten. Many of us who treat patients with psoriasis find combination products much easier to use for our patients with enhanced efficacyand better access as a single prescription. The rationale behind the development of a halobetasol propionate 0.01% and tazarotene 0.045% (HP/TAZ) fixed combination lotion was to provide optimal topical treatment for moderate-to-severe psoriasis: providing synergistic efficacy, reducing or minimizing the irritant effect of tazarotene and the local cutaneous AEs with halobetasol (such as skin atrophy, telangiectasia), allowing for the potential of prolonged use beyond 2-4 weeks; in a light, aesthetically pleasing lotion formulation that patients would prefer.
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