Application of Tazarotene/Betamethasone Dipropionate Cream i
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Topical agents are still the mainstay for the treatment of mild-to-moderate plaque psoriasis, in which fixed combinations play an important role. Tazarotene/betamethasone dipropionate (Taz/BD) cream is a novel fixed combination approved for treating plaque psoriasis in China.

The primary objective was to investigate the efficacy and safety of Taz/BD cream in treating plaque psoriasis. The secondary objectives were to assess its relapse after discontinuation and the efficacy and safety profiles during retreatment.

A prospective, multicenter, large-scale observational study was conducted. Adult patients with chronic plaque psoriasis involving less than 20% of the body surface area were enrolled. Taz/BD cream was applied once daily for 4 weeks. Patients who achieved morere than 90% improvement in the Psoriasis Area and Severity Index (PASI) from baseline to week 4 were followed up to investigate relapse after drug withdrawal. Relapsed patients underwent another 4-week treatment.

Results:
In total, 2,299 eligible patients were enrolled, and 2,095 patients completed the 4-week study.
--The mean PASI improvement at week 4 was 53.7%, and the PASI 50/75 response rates were 62.5 and 26.8%, respectively. --The mean PASI reduction in plaque induration, desquamation and erythema were 58.3, 61.0 and 40.0%, respectively.
--Adverse reactions occurred in 445 patients at week 4. The most frequently reported adverse reactions were local skin irritation, including pruritus (10%), pain (6.7%), erythema (6.1%) and desquamation (1.8%).
--During the post-treatment period, 47 patients relapsed within 8 weeks after drug discontinuation. 45 patients were retreated for another 4 weeks, and the PASI 50/75 response rates were 72.7 and 40.9%, respectively. There were no unexpected safety signals during retreatment.

Conclusively, Taz/BD cream is effective and well tolerated in treating mild-to-moderate plaque psoriasis under near real-world conditions and demonstrates efficacy and safety during retreatment.

Source: https://www.karger.com/Article/Abstract/511891
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