Adherence among women with HIV infection in Puerto Rico: the potential use of modified directly observed therapy (MDOT) among pregnant and postpartum women.

Women are the fastest growing segment of the adult population acquiring HIV, and most women infected with HIV are in their reproductive years. The success of HAART is highly dependent upon the ability and willingness of the individual to adhere to complex antiretroviral regimens. Improved adherence among HIV-infected pregnant women will delay disease progression in the mother and should also reduce HIV transmission to the baby. Modified directly observed therapy (MDOT), may benefit this population. MDOT has been shown to be an acceptable and feasible intervention among HIV substance users; however, no-one has yet evaluated the use of MDOT in pregnant and postpartum women. Based on semi-structured interviews with 17 Latina women with HIV infection, we explored women's adherence patterns and barriers to adherence and their perceptions of a hypothetical MDOT program. The vast majority of women positively appraised the MDOT program as an effective means to increase and reinforce adherence to demanding drug regimens. Respondents cited the face-to-face contact, the supportive nature of the relationship, and the practical approach of the program as the primary reasons for the effectiveness of MDOT. Results indicate that MDOT could be an acceptable intervention for pregnant and postpartum Latina women to improve adherence to HAART.

The use of community-based modified directly observed therapy for the treatment of HIV-infected persons.

Directly observed therapy, which has been successful in the treatment of tuberculosis, is being adapted for the treatment of HIV to decrease long-term morbidity and mortality. We describe the experiences of 69 HIV-infected individuals who were enrolled in a community-based modified directly observed therapy (MDOT) program. Participants were referred by their primary care physicians based on nonadherence to antiretroviral therapy, and/or active substance use. A near-peer outreach worker initially delivered medications to participants 5 to 7 days per week, with visits subsequently tapered to 1 to 3 days per week after 3 or more months. Questionnaires were completed and laboratory values were obtained at baseline, 1 month, and every 3 months after enrollment. At enrollment, 96% of participants had a history of substance use, 71% had a history of incarceration, and 93% were experienced with highly active antiretroviral therapy (HAART). At the time of their 6-month assessment visit, 31 of 69 participants were receiving observed therapy visits. The median baseline plasma viral load (PVL) was 4.8 log, and the median individual change in PVL from baseline to 6 months among participants receiving MDOT was a decrease of 2.7 log. Reasons why participants were not receiving visits included medication holidays, hospitalization or assisted living, incarceration, discontinuation of program involvement, and death. These results support that MDOT should be included in the spectrum of options available to enhance adherence to HAART among patients who are unsuccessful with self-administration of their medications.