The clinical investigator

, Volume 72, Issue 12, pp 1086–1091 | Cite as

Liposomal tretinoin for uncomplicated acne vulgaris

  • M. Schäfer-Korting
  • H. C. Korting
  • E. Ponce-Pöschl
Clinical Pharmacology


Frequently occurring skin irritancy and flare-up reactions impede the use of topical tretinoin for acne vulgaris due to poor patient compliance. Liposome encapsulation improves penetration into the skin and local tolerability in animals. We investigated efficacy and local tolerability of liposomal tretinoin in man. In a double-blind study 20 patients with uncomplicated acne vulgaris received liposomal tretinoin (0.01 %) on one side of the body and a commercial gel preparation with either 0.025% or 0.05% on the other once daily for 10 weeks. Comedones and papules/pustules were counted every 2 (−4) weeks. Then also redness, scaling, and burning were rated according to a four-point scale. Moreover, the patients noted skin irritancy in a diary on a daily base. With conventional tretinoin the gels were equally efficacious and equally well tolerated. Liposomal tretinoin also appeared equipotent to the reference gels. There may even have been a slightly more rapid clearing of comedones following the liposome preparation. With respect to skin irritancy, however, liposomal tretinoin was superior. As rated by the patients, liposome encapsulated tretinoin induced less burning (mean cumulative score 2.7 ± 1.2) than the 0.025% gel (16.1 ± 7.1) and the 0.05% gel (9.7±4.1) gel and less erythema (1.8±0.7) than the 0.025% gel (11.4 ± 3.8; (P < 0.05). Liposomal tretinoin was also better tolerated according to the rating by the investigator. Liposomal encapsulation of tretinoin allows reduction of the concentration of the active agent without a decline in efficacy for acne vulgaris. Since local tolerability is thus increased, liposomal tretinoin should favor the acceptance of this treatment by the patient.

Key words

Tretinoin Retinoic acid Liposomes Acne vulgaris Irritancy 



serum glutamate oxalacetate transaminase


serum glutamate pyruvate transaminase


7-glutamyl transferase


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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • M. Schäfer-Korting
    • 1
  • H. C. Korting
    • 2
  • E. Ponce-Pöschl
    • 3
  1. 1.Institut für PharmazieFreie Universität BerlinBerlinGermany
  2. 2.Dermatologische Klinik und PoliklinikLudwig-Maximilians-UniversitätMünchenGermany
  3. 3.Hautarzt-Praxis Dr. W. Klövekorn/Dr. E. Ponce-PöschlGilchingGermany

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