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Tacalcitol ointment for psoriasis

M Nishimura1, Y Makino, H Matugi

  • 1Department of Dermatology, Saga Prefect, Hospital Kouseikan, Japan.

Acta Dermato-Venereologica. Supplementum
|January 1, 1994
PubMed
Summary
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Tacalcitol ointment showed minimal transdermal absorption in human skin, unlike in rats. Clinical trials confirmed its effectiveness and safety for psoriasis treatment.

Area of Science:

  • Dermatology
  • Pharmacokinetics
  • Drug Delivery Systems

Background:

  • Psoriasis is a chronic inflammatory skin condition.
  • Tacalcitol is a vitamin D analog used in psoriasis treatment.
  • Understanding transdermal absorption is crucial for topical drug efficacy.

Purpose of the Study:

  • To evaluate the transdermal absorption of tacalcitol from a 2 micrograms/g ointment.
  • To assess the efficacy and safety of tacalcitol ointment for psoriasis.

Main Methods:

  • In vitro studies using hairless rat and human skin.
  • In vivo placebo-controlled, double-blind, right/left comparison clinical trial.

Main Results:

  • Significant transdermal absorption of tacalcitol was observed in hairless rats.

Related Experiment Videos

  • Minimal transdermal absorption of tacalcitol was found with human skin.
  • The ointment demonstrated significant efficacy and a favorable safety profile in psoriasis patients.

    • Conclusions:

    • Tacalcitol ointment exhibits limited systemic absorption through human skin.
    • The formulation is effective and safe for topical psoriasis management.