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Clinical Trial Summary

The three-month short-course treatment with isoniazid [H] and rifapentine [P] (3HP) recently recommended by the Centers for Disease Control and Prevention could dramatically increase the number of persons starting and completing treatment for latent tuberculosis infection (LTBI), but TB providers nationwide are hamstrung by the requirement that 3HP only be administered by directly observed therapy (DOT) in which patients are watched taking each medication dose in-person. We developed a novel mHealth application that allows patients to make and send videos of each medication dose ingested that are watched by healthcare providers via a HIPAA-compliant website to remotely monitor LTBI treatment adherence (Video DOT [VDOT]). This study will determine whether monitoring patients with VDOT achieves higher treatment completion rates and greater patient acceptability at lower cost than clinic-based in-person DOT.


Clinical Trial Description

Building on our novel VDOT System that includes text messaging reminders and HIPAA-compliant cloud-based administration, we hypothesize that VDOT can be expanded to provide higher treatment completion rates at a lower cost than in-person DOT for LTBI treatment using 3HP. We propose a randomized controlled trial to address the following specific aims: Aim 1: To determine whether LTBI treatment completion and adherence are greater for patients treated with 3HP administered via VDOT versus in-person DOT, and to identify patient factors associated with these outcomes; Aim 2: To compare acceptability of treatment by patients on VDOT versus in-person DOT, and identify factors associated with differences in acceptability; Aim 3: To calculate the cost-effectiveness of VDOT compared to in-person DOT for administering 3HP. To address the study aims we will conduct a randomized controlled trial in which TB contacts and refugees in San Diego who are prescribed 3HP for LTBI treatment by their physician will be randomly assigned to be monitored for adherence via either VDOT or in-person DOT (Figure 2). Approximately 100 patients per year over three years (n=155/arm) will be recruited through the San Diego County TB Control and Refugee Health Program (TCRHP) clinics for the trial. Patients assigned to VDOT will be given a smartphone with service and taught to send videos of themselves taking each weekly medication dose; patients in the in-person DOT arm will visit the clinic each week to be observed by a healthcare worker taking their LTBI medication. Medication adherence will be monitored for all participants until they have taken all 12 doses or 16 weeks (limit recommended by the CDC to complete treatment), to compare treatment adherence rates and patient acceptance across trial arms. Participants will complete brief (20 minute) baseline and follow-up assessment interviews to obtain information about potential confounders and effect modifiers of adherence and patient acceptance regarding their treatment administration method. Cost-benefit analyses will also be conducted to assist in developing policies around the use of VDOT for 3HP. Since participants will be recruited after they have been prescribed 3HP by their healthcare provider and all patient care will be continued through their provider, no medications will be prescribed or treatment decisions made this study. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02641106
Study type Interventional
Source University of California, San Diego
Contact
Status Completed
Phase N/A
Start date March 8, 2016
Completion date June 30, 2020

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