Abstract
Patients (45) suffering from various genodermatoses and erythematous, scaling, non-psoriatic dermatoses were treated orally with the aromatic derivative of retinoic acid, Ro 10-9359 (Tigason) [ethyl-all-trans-9-(4-methoxy-2,3,6-trimethylphenyl)-3, 7-dimethyl-2, 4, 6, 8 nonatetraenoate]. In the genodermatoses the best results were obtained in ichthyosis, keratodermias and Darier''s disease (95.6% good to excellent). Among the erythematous scaling diseases, treatment was effective in lichen planus, parapsoriasis and pityriasis rubra pilaris (53.3% good to excellent results). In comparison with therapies previouslY employed Ro 10-9359 was more effective. No serious side effects were noted.