Serological Response to Treatment of Syphilis with Doxycycline Compared with Penicillin in HIV-infected Individuals

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Serological response to treatment of syphilis with orally administered doxycycline or intramuscularly administered penicillin was assessed in patients with concurrent HIV. All HIV-infected individuals diagnosed with syphilis attending 3 hospitals in Copenhagen, Denmark were included. Odds ratios (ORs) with 95% confidence intervals (CI) associated with serological outcome were modelled using propensity-score-adjusted logistic regression analysis. In total, 202 cases were treated with doxycycline or intramuscular penicillin. At 12 months, serological failure was observed in 12 cases (15%) treated with doxycycline and in 8 cases (17%) treated with penicillin (OR 0.78 (95% CI 0.16-3.88), p = 0.76). The serological cure rate at 12 months was highest in patients with primary syphilis (100%), followed by patients with secondary (89%), early latent (71%) and late latent (67%) syphilis (p = 0.006). In conclusion, this study provides evidence for the use of doxycycline as a treatment option when treating a HIV-infected population for syphilis.

Original languageEnglish
JournalActa Dermatovenereologica
Issue number6
Pages (from-to)807-811
Number of pages5
Publication statusPublished - 2016

    Research areas

  • Administration, Oral, Adult, Aged, Aged, 80 and over, Anti-Bacterial Agents, Denmark, Doxycycline, Female, HIV Seropositivity, Humans, Injections, Male, Middle Aged, Penicillins, Retrospective Studies, Syphilis, Treatment Outcome, Comparative Study

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