NCT06883643

Brief Summary

Following the negative impact of public health program services including TB services by the COVID-19 Pandemic in 2020, CIDRZ conducted a program evaluation for remote patient follow up for TB treatment and prevention through a differentiated service delivery model (DSD), offering clinical monitoring and psychosocial support while minimizing contact with the health facilities. The project was implemented between February 2022 to March 2023 and was funded through Centers for Disease Control and Prevention's COVID-19 Response International Task Force - CARES funding. While DSD models have been widely adopted in HIV programs , DSD is a relatively new and exciting approach for TB treatment and prevention programs.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
3,318

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 4, 2022

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2023

Completed
1.9 years until next milestone

First Submitted

Initial submission to the registry

March 11, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 19, 2025

Completed
Last Updated

March 19, 2025

Status Verified

January 1, 2025

Enrollment Period

1.2 years

First QC Date

March 11, 2025

Last Update Submit

March 17, 2025

Conditions

Keywords

DSD TB

Outcome Measures

Primary Outcomes (1)

  • TB and TPT Outcomes

    • The primary program evaluation outcomes of interest are the TPT and ATT completion rates in the prospective cohort, defined as the fraction of participants completing TPT or ATT among those who initiated TPT or ATT

    12 months

Study Arms (2)

TB treatment ARM

ACTIVE COMPARATOR

Beginning February 2022, we offered ATT via 2-month MMD during intensive and 4-month MMD during continuation phases. In-clinic visits during 6-months of ATT were reduced from 7 under standard of care to 3 visits in DSD, while ensuring robust adherence and adverse event screening. Remote monitoring consisted of structured SMS (months 1 to 5) and phone (week 2 and month 3) follow-up to assess adherence and screen for side effects. If SMS were not returned, a phone or home visit was triggered.

Behavioral: Differentiated service delivery approach (DSD) in TB treatment and prevention.

TPT DSD

ACTIVE COMPARATOR

Beginning February 2022, we offered TPT aligned to 6MMD ART model following standard of care processes with added support (See below). Remote monitoring consisted of structured SMS (months 1 to 5) and phone (week 2 and month 3) follow-up to assess adherence and screen for side effects. ROCs that did not respond to the SMS within 2 days were further contacted via phone and if not reachable a home visit was done. ROCs that reported at least one side effect or more were followed up with virtual reviews by clinicians. At enrollment ROCs reading language of preference was documented and the SMS was sent in their preferred language.

Behavioral: Differentiated service delivery approach (DSD) in TB treatment and prevention.

Interventions

Although DSD models have been widely adopted in HIV programs, DSD is a relatively new approach for TB programs because of an historical reliance on directly observed therapy (DOT) (6). DSD provides opportunities to improve health outcomes and reduce the burden of seeking care for people diagnosed with TB.

TB treatment ARMTPT DSD

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • TB ARM
  • Diagnosed with TB (new cases or retreatment cases) 18 years and above Willing and able to provide consent Not pregnant or breastfeeding No MDR TB
  • TPT ARM
  • years or above virally supressed with no symptoms or diagnosis suggestive of TB on ART for more than 6 months on 6MMD Consented to participate in the project did not receive TPT in the last 3 years not pregnant or breastfeeding women not incarcerated

You may not qualify if:

  • ATT ARM
  • RoCs those TB diagnosis is not confirmed
  • RoCs who are less than 18 years old
  • RoCs not able to provide consent for program evaluation participation
  • RoCs with MDR TB
  • TPT ARM
  • RoCs with symptoms suggestive of TB, diagnosed or confirmed with TB diagnosis
  • RoCs who received TPT in the last 3 years
  • RoCs who are less than 18 years old
  • RoCs not able to provide consent for program evaluation participation
  • Pregnant and breastfeeding women
  • Incarcerated persons

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Lusaka and Livingstone districts

Lusaka, Lusaka Province, 10101, Zambia

Location

Related Links

Study Officials

  • Mwanza Wa Mwanza, MD

    Centre for Infectious Disease Research in Zambia

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Model Details: Project evaluation
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 11, 2025

First Posted

March 19, 2025

Study Start

February 4, 2022

Primary Completion

March 31, 2023

Study Completion

March 31, 2023

Last Updated

March 19, 2025

Record last verified: 2025-01

Locations