Long-term use of penicillin for the treatment of chronic plaque psoriasis

Area of Science:

• Dermatology
• Infectious Diseases
• Microbiology

Background:

• Chronic plaque psoriasis is a persistent skin condition often linked to underlying infections.
• Sub-clinical streptococcal infections are hypothesized as a potential trigger for psoriasis development and exacerbation.
• Many patients experience frequent relapses and limited success with conventional psoriasis treatments.

Purpose of the Study:

• To investigate the efficacy of long-term benzathine penicillin therapy in patients with moderate to severe chronic plaque psoriasis.
• To assess the safety and tolerability of benzathine penicillin in this patient cohort.
• To explore the potential role of streptococcal infections in the pathogenesis of psoriasis.

Main Methods:

• An open-label study involving thirty patients diagnosed with moderate to severe chronic plaque psoriasis.
• Patients received intramuscular benzathine penicillin (1.2 million units) administered fortnightly initially, then monthly after 24 weeks.
• Clinical assessments and relevant investigations were conducted regularly over a two-year study period to monitor disease progression and side effects.

Main Results:

• Significant improvements in the Psoriasis Area and Severity Index (PASI) score were observed starting from 12 weeks of treatment.
• All thirty patients demonstrated excellent overall improvement by the end of the two-year study.
• The benzathine penicillin therapy was well-tolerated by all participants, with no significant adverse effects reported.

Conclusions:

• Long-term treatment with benzathine penicillin shows significant promise for managing chronic plaque psoriasis.
• The findings suggest a potential link between streptococcal infections and psoriasis, warranting further investigation.
• Controlled studies are recommended to validate these results and establish benzathine penicillin as a standard treatment option for psoriasis.