Trial Outcomes & Findings for An Evaluation of Traditional Directly Observed Therapy (DOT) and Electronic DOT for TB Treatment (NCT NCT03266003)

NCT ID: NCT03266003

Last Updated: 2026-07-02

Results Overview

The proportion of observable medication doses directly observed by staff during in-person DOT and electronic DOT, analyzed using the modified intention-to-treat (Modified ITT) population. The unit of analysis is medication doses.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

216 participants

Primary outcome timeframe

Time frame varied based on the participant's prescribed treatment regimen and phase of treatment; 20 doses of medication would require 8 to 13 weeks.

Results posted on

2026-07-02

Participant Flow

Enrollment began July 2017 and ended October 2019. Recruitment was conducted through 4 chest clinics operated by the New York City Department of Health and Mental Hygiene, Bureau of Tuberculosis Control. Non-English-speaking participants were recruited using bilingual staff, contracted interpreters, and translated data collection forms.

A total of 216 persons were screened, enrolled, and randomized. Following randomization, yet prior to the start of the crossover period, among those randomized to Group 1, 4 withdrew. Reasons were: Late exclusion, TB Diagnosis ruled out (n=1) Moving (n=1) Consent withdrawn (n=1) Other (n=1). Among those randomized to Group 2, 1 participant was withdrawn due to death.

Participant milestones

Participant milestones
Measure
Group 1: ipDOT Followed by eDOT
Following 20 observable medication doses under an initial DOT study group assignment of in-person DOT (ipDOT), patients will be assigned (crossed-over) to electronic DOT (eDOT) to collect data on another 20 observable medication doses. Electronic DOT: Electronic DOT is the use of electronic communication methods to observe patients swallow anti-TB drugs and monitor for medication side effects. This study will use two variations of electronic communication methods, referred to as "electronic directly observed therapy" or "eDOT". This includes: (1) eDOT conducted "live" in which TB program staff interact with patients via a computer or phone application as they ingest their medication (eDOT-live), and (2) eDOT conducted using "time stamped, recorded" videos in which TB program staff log into an electronic system and review videos recorded by patients in order to verify that patients ingested their medication doses as scheduled (eDOT-recorded). In-person DOT: A trained person is in the physical presence of patients as anti-TB drugs are ingested.
Group 2: eDOT Followed by ipDOT
Following 20 observable medication doses under an initial DOT study group assignment of electronic DOT (eDOT), patients will be assigned (crossed-over) to in-person DOT (ipDOT) to collect data on another 20 observable medication doses. Electronic DOT: Electronic DOT is the use of electronic communication methods to observe patients swallow anti-TB drugs and monitor for medication side effects. This study will use two variations of electronic communication methods, referred to as "electronic directly observed therapy" or "eDOT". This includes: (1) eDOT conducted "live" in which TB program staff interact with patients via a computer or phone application as they ingest their medication (eDOT-live), and (2) eDOT conducted using "time stamped, recorded" videos in which TB program staff log into an electronic system and review videos recorded by patients in order to verify that patients ingested their medication doses as scheduled (eDOT-recorded). In-person DOT: A trained person is in the physical presence of patients as anti-TB drugs are ingested.
First Intervention (20 Observed Doses)
STARTED
109
102
First Intervention (20 Observed Doses)
COMPLETED
95
78
First Intervention (20 Observed Doses)
NOT COMPLETED
14
24
Second Intervention (20 Observed Doses)
STARTED
95
78
Second Intervention (20 Observed Doses)
COMPLETED
95
78
Second Intervention (20 Observed Doses)
NOT COMPLETED
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Group 1: ipDOT Followed by eDOT
Following 20 observable medication doses under an initial DOT study group assignment of in-person DOT (ipDOT), patients will be assigned (crossed-over) to electronic DOT (eDOT) to collect data on another 20 observable medication doses. Electronic DOT: Electronic DOT is the use of electronic communication methods to observe patients swallow anti-TB drugs and monitor for medication side effects. This study will use two variations of electronic communication methods, referred to as "electronic directly observed therapy" or "eDOT". This includes: (1) eDOT conducted "live" in which TB program staff interact with patients via a computer or phone application as they ingest their medication (eDOT-live), and (2) eDOT conducted using "time stamped, recorded" videos in which TB program staff log into an electronic system and review videos recorded by patients in order to verify that patients ingested their medication doses as scheduled (eDOT-recorded). In-person DOT: A trained person is in the physical presence of patients as anti-TB drugs are ingested.
Group 2: eDOT Followed by ipDOT
Following 20 observable medication doses under an initial DOT study group assignment of electronic DOT (eDOT), patients will be assigned (crossed-over) to in-person DOT (ipDOT) to collect data on another 20 observable medication doses. Electronic DOT: Electronic DOT is the use of electronic communication methods to observe patients swallow anti-TB drugs and monitor for medication side effects. This study will use two variations of electronic communication methods, referred to as "electronic directly observed therapy" or "eDOT". This includes: (1) eDOT conducted "live" in which TB program staff interact with patients via a computer or phone application as they ingest their medication (eDOT-live), and (2) eDOT conducted using "time stamped, recorded" videos in which TB program staff log into an electronic system and review videos recorded by patients in order to verify that patients ingested their medication doses as scheduled (eDOT-recorded). In-person DOT: A trained person is in the physical presence of patients as anti-TB drugs are ingested.
First Intervention (20 Observed Doses)
Physician Decision
1
2
First Intervention (20 Observed Doses)
Lost to Follow-up
1
2
First Intervention (20 Observed Doses)
Withdrawal by Subject
2
5
First Intervention (20 Observed Doses)
Late Exclusion - Ruled out TB
4
6
First Intervention (20 Observed Doses)
Late Exclusion: Hospitalized more than 5 days
2
3
First Intervention (20 Observed Doses)
Late Exclusion: Drug Resistance Identified
2
3
First Intervention (20 Observed Doses)
Participant moved or relocated
2
3

Baseline Characteristics

An Evaluation of Traditional Directly Observed Therapy (DOT) and Electronic DOT for TB Treatment

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group 1: ipDOT Followed by eDOT
n=113 Participants
Following 20 observable medication doses under an initial DOT study group assignment of in-person DOT (ipDOT), patients will be assigned (crossed-over) to electronic DOT (eDOT) to collect data on another 20 observable medication doses. Electronic DOT: Electronic DOT is the use of electronic communication methods to observe patients swallow anti-TB drugs and monitor for medication side effects. This study will use two variations of electronic communication methods, referred to as "electronic directly observed therapy" or "eDOT". This includes: (1) eDOT conducted "live" in which TB program staff interact with patients via a computer or phone application as they ingest their medication (eDOT-live), and (2) eDOT conducted using "time stamped, recorded" videos in which TB program staff log into an electronic system and review videos recorded by patients in order to verify that patients ingested their medication doses as scheduled (eDOT-recorded). In-person DOT: A trained person is in the physical presence of patients as anti-TB drugs are ingested.
Group 2: eDOT Followed by ipDOT
n=103 Participants
Following 20 observable medication doses under an initial DOT study group assignment of electronic DOT (eDOT), patients will be assigned (crossed-over) to in-person DOT (ipDOT) to collect data on another 20 observable medication doses. Electronic DOT: Electronic DOT is the use of electronic communication methods to observe patients swallow anti-TB drugs and monitor for medication side effects. This study will use two variations of electronic communication methods, referred to as "electronic directly observed therapy" or "eDOT". This includes: (1) eDOT conducted "live" in which TB program staff interact with patients via a computer or phone application as they ingest their medication (eDOT-live), and (2) eDOT conducted using "time stamped, recorded" videos in which TB program staff log into an electronic system and review videos recorded by patients in order to verify that patients ingested their medication doses as scheduled (eDOT-recorded). In-person DOT: A trained person is in the physical presence of patients as anti-TB drugs are ingested.
Total
n=216 Participants
Total of all reporting groups
Age, Customized
41-50 years
20 Participants
n=20 Participants
18 Participants
n=20 Participants
38 Participants
n=40 Participants
Age, Continuous
38 years
n=20 Participants
44 years
n=20 Participants
42 years
n=40 Participants
Age, Customized
16-20 years
6 Participants
n=20 Participants
4 Participants
n=20 Participants
10 Participants
n=40 Participants
Age, Customized
21-30 years
35 Participants
n=20 Participants
22 Participants
n=20 Participants
57 Participants
n=40 Participants
Age, Customized
31-40 years
18 Participants
n=20 Participants
14 Participants
n=20 Participants
32 Participants
n=40 Participants
Age, Customized
51-60 years
20 Participants
n=20 Participants
21 Participants
n=20 Participants
41 Participants
n=40 Participants
Age, Customized
61-70 years
8 Participants
n=20 Participants
13 Participants
n=20 Participants
21 Participants
n=40 Participants
Age, Customized
71-80 years
4 Participants
n=20 Participants
11 Participants
n=20 Participants
15 Participants
n=40 Participants
Age, Customized
81-90 years
2 Participants
n=20 Participants
0 Participants
n=20 Participants
2 Participants
n=40 Participants
Sex: Female, Male
Female
45 Participants
n=20 Participants
31 Participants
n=20 Participants
76 Participants
n=40 Participants
Sex: Female, Male
Male
68 Participants
n=20 Participants
72 Participants
n=20 Participants
140 Participants
n=40 Participants
Race/Ethnicity, Customized
African American / Black, Non-Hispanic
20 Participants
n=20 Participants
23 Participants
n=20 Participants
43 Participants
n=40 Participants
Race/Ethnicity, Customized
Asian/ Pacific Islander/ Hawaiian
37 Participants
n=20 Participants
43 Participants
n=20 Participants
80 Participants
n=40 Participants
Race/Ethnicity, Customized
Hispanic
43 Participants
n=20 Participants
28 Participants
n=20 Participants
71 Participants
n=40 Participants
Race/Ethnicity, Customized
Other / Multiple
9 Participants
n=20 Participants
4 Participants
n=20 Participants
13 Participants
n=40 Participants
Race/Ethnicity, Customized
White, Non-Hispanic
4 Participants
n=20 Participants
5 Participants
n=20 Participants
9 Participants
n=40 Participants
Region of Enrollment
United States
113 participants
n=20 Participants
103 participants
n=20 Participants
216 participants
n=40 Participants
Access to Video Device Prior to Enrollment
Yes
78 Participants
n=20 Participants
71 Participants
n=20 Participants
149 Participants
n=40 Participants
Access to Video Device Prior to Enrollment
No
35 Participants
n=20 Participants
32 Participants
n=20 Participants
67 Participants
n=40 Participants
Primary Language Spoken
English
29 Participants
n=20 Participants
26 Participants
n=20 Participants
55 Participants
n=40 Participants
Primary Language Spoken
Spanish
34 Participants
n=20 Participants
22 Participants
n=20 Participants
56 Participants
n=40 Participants
Primary Language Spoken
Chinese (Cantonese, Fujianese, Mandarin)
9 Participants
n=20 Participants
15 Participants
n=20 Participants
24 Participants
n=40 Participants
Primary Language Spoken
French, Creole, Pidgins, French-based Other
9 Participants
n=20 Participants
7 Participants
n=20 Participants
16 Participants
n=40 Participants
Primary Language Spoken
Other
30 Participants
n=20 Participants
30 Participants
n=20 Participants
60 Participants
n=40 Participants
Primary Language Spoken
Unknown
2 Participants
n=20 Participants
3 Participants
n=20 Participants
5 Participants
n=40 Participants
Educational Attainment
No formal schooling
8 Participants
n=20 Participants
4 Participants
n=20 Participants
12 Participants
n=40 Participants
Educational Attainment
Primary school (Grades 1-5)
4 Participants
n=20 Participants
5 Participants
n=20 Participants
9 Participants
n=40 Participants
Educational Attainment
Middle school (Grades 6-8)
14 Participants
n=20 Participants
13 Participants
n=20 Participants
27 Participants
n=40 Participants
Educational Attainment
Secondary school (Grades 9-12)
40 Participants
n=20 Participants
44 Participants
n=20 Participants
84 Participants
n=40 Participants
Educational Attainment
College+
34 Participants
n=20 Participants
28 Participants
n=20 Participants
62 Participants
n=40 Participants
Educational Attainment
Unknown / Refused to Answer
13 Participants
n=20 Participants
9 Participants
n=20 Participants
22 Participants
n=40 Participants
TB Disease, Pulmonary (Yes)
100 Participants
n=20 Participants
90 Participants
n=20 Participants
190 Participants
n=40 Participants

PRIMARY outcome

Timeframe: Time frame varied based on the participant's prescribed treatment regimen and phase of treatment; 20 doses of medication would require 8 to 13 weeks.

Population: Participants included in the Modified ITT and Empirical Analyses

The proportion of observable medication doses directly observed by staff during in-person DOT and electronic DOT, analyzed using the modified intention-to-treat (Modified ITT) population. The unit of analysis is medication doses.

Outcome measures

Outcome measures
Measure
Percentage of Doses Staff Observed Participants Ingest With In-person Directly Observed Therapy
n=3192 Medication Doses
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing in-person DOT could choose to meet with health department staff at the TB clinic or at a mutually agreed-upon location in the community.
Percentage of Doses Staff Observed Participants Ingest With Electronic Directly Observed Therapy
n=3244 Medication Doses
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing electronic DOT could choose live videoconferencing (Skype for Business), which allowed TB program staff to interact with participants in real-time, or recorded (asynchronous) videos using a software application that automatically uploaded timestamped videos to a secure cloud-based server (SureAdhere Mobile Technology, Inc), and which TB program staff reviewed the following workday.
"Percentage of Medication Doses Directly Observed (Modified ITT Analysis)"
2783 Medication Doses
2913 Medication Doses

PRIMARY outcome

Timeframe: Cross-over period; 20 observable medication doses per DOT method (approximately 8 to 13 weeks depending on treatment regimen).

The proportion of observable medication doses directly observed by staff during in-person DOT and electronic DOT, analyzed using the empirical analysis population. The unit of analysis is medication doses.

Outcome measures

Outcome measures
Measure
Percentage of Doses Staff Observed Participants Ingest With In-person Directly Observed Therapy
n=2979 Medication Doses
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing in-person DOT could choose to meet with health department staff at the TB clinic or at a mutually agreed-upon location in the community.
Percentage of Doses Staff Observed Participants Ingest With Electronic Directly Observed Therapy
n=3457 Medication Doses
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing electronic DOT could choose live videoconferencing (Skype for Business), which allowed TB program staff to interact with participants in real-time, or recorded (asynchronous) videos using a software application that automatically uploaded timestamped videos to a secure cloud-based server (SureAdhere Mobile Technology, Inc), and which TB program staff reviewed the following workday.
Percentage of Medication Doses Directly Observed (Empirical Analysis)
2601 Medication Doses
3091 Medication Doses

SECONDARY outcome

Timeframe: Time frame varied based on the participant's prescribed treatment regimen and phase of treatment; 20 doses of medication would require 8 -13 weeks.

Population: In accordance with TB program protocols, all study participants were educated about symptoms of medication side effects at their first in-person clinic appointment and instructed to report these side effects and any health-related concerns during each DOT session. 57 participants reported medication side effects or health concerns during the study's crossover periods. Among the 57 participants, data specific to time frame were unavailable for seven participants.

Time, measured in days, in which participants experience initial symptoms of medication side effects to when they receive medical attention for the medication side effects they are experiencing, either through consultation with a physician, urgent care or emergency room visits, or hospital admission across DOT methods.

Outcome measures

Outcome measures
Measure
Percentage of Doses Staff Observed Participants Ingest With In-person Directly Observed Therapy
n=23 Participants
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing in-person DOT could choose to meet with health department staff at the TB clinic or at a mutually agreed-upon location in the community.
Percentage of Doses Staff Observed Participants Ingest With Electronic Directly Observed Therapy
n=27 Participants
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing electronic DOT could choose live videoconferencing (Skype for Business), which allowed TB program staff to interact with participants in real-time, or recorded (asynchronous) videos using a software application that automatically uploaded timestamped videos to a secure cloud-based server (SureAdhere Mobile Technology, Inc), and which TB program staff reviewed the following workday.
Reporting of Medication Side Effects
1.0 Days
Interval 0.5 to 2.0
1.0 Days
Interval 0.0 to 2.0

SECONDARY outcome

Timeframe: During the cross-over period and continuation period, from treatment initiation until completion of tuberculosis treatment (approximately up to 6 months, depending on the prescribed treatment regimen).

Population: Overall Number of Participants Analyzed reflects the number of participants contributing data to each intervention. Overall Number of Units Analyzed reflects the total number of medication doses included in the analysis. Participants could contribute multiple medication-dose observations beyond the initial 20 observable doses per intervention because DOT observations continued through treatment completion.

Number of scheduled, observable medication doses that were not directly observed by staff. Participants contributed medication-dose observations during the cross-over period and, when applicable, the continuation period through treatment completion. The unit of analysis is medication doses.

Outcome measures

Outcome measures
Measure
Percentage of Doses Staff Observed Participants Ingest With In-person Directly Observed Therapy
n=4692 Medication Doses
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing in-person DOT could choose to meet with health department staff at the TB clinic or at a mutually agreed-upon location in the community.
Percentage of Doses Staff Observed Participants Ingest With Electronic Directly Observed Therapy
n=15405 Medication Doses
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing electronic DOT could choose live videoconferencing (Skype for Business), which allowed TB program staff to interact with participants in real-time, or recorded (asynchronous) videos using a software application that automatically uploaded timestamped videos to a secure cloud-based server (SureAdhere Mobile Technology, Inc), and which TB program staff reviewed the following workday.
Number of Medication Doses Not Directly Observed
798 medication doses
2794 medication doses

OTHER_PRE_SPECIFIED outcome

Timeframe: Cross-Over Period (40 observable medication doses total; approximately 8 weeks for daily regimens and 13 weeks for intermittent regimens).

Number of participants by gender, race, ethnic origin, country of birth, primary language spoken, and employment who adhere to TB treatment. Additionally, the number of patients with a history of contact with persons diagnosed with multi-drug resistant TB, incomplete treatment for latent TB infection, diabetes, renal disease, immunosuppression, hepatitis, a history of homelessness, a history of substance abuse, a history of incarceration, a history of a prior TB diagnosis who adhere to TB treatment.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Cross-Over Period (40 observable medication doses total; approximately 8 weeks for daily regimens and 13 weeks for intermittent regimens).

Compare the proportion of participants completing treatment to those lost to follow-up or refused further treatment, transfer or move, experience treatment failure, or expire (with death attributable to tuberculosis) across DOT methods.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Cross-Over Period (40 observable medication doses total; approximately 8 weeks for daily regimens and 13 weeks for intermittent regimens).

After participants complete 40 doses of TB medication (20 doses using ipDOT and 20 doses using eDOT) during the cross-over period, they will be asked to report which DOT method they prefer, and the reasons for their preference.

Outcome measures

Outcome measures
Measure
Percentage of Doses Staff Observed Participants Ingest With In-person Directly Observed Therapy
n=173 Participants
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing in-person DOT could choose to meet with health department staff at the TB clinic or at a mutually agreed-upon location in the community.
Percentage of Doses Staff Observed Participants Ingest With Electronic Directly Observed Therapy
All nonholiday, weekday doses scheduled in advance for DOT were designated scheduled and observable, and an outcome was documented for each dose. Participants undergoing electronic DOT could choose live videoconferencing (Skype for Business), which allowed TB program staff to interact with participants in real-time, or recorded (asynchronous) videos using a software application that automatically uploaded timestamped videos to a secure cloud-based server (SureAdhere Mobile Technology, Inc), and which TB program staff reviewed the following workday.
Participants' Preferred DOT Method at the Conclusion of the Cross-over Period.
Preferred to continue treatment with live-video electronic DOT
73 Participants
Participants' Preferred DOT Method at the Conclusion of the Cross-over Period.
Preferred to continue treatment with recorded-video electronic DOT
73 Participants
Participants' Preferred DOT Method at the Conclusion of the Cross-over Period.
Preferred to continue treatment with community-based in-person DOT
9 Participants
Participants' Preferred DOT Method at the Conclusion of the Cross-over Period.
Preferred to continue treatment with clinic-based in-person DOT
1 Participants
Participants' Preferred DOT Method at the Conclusion of the Cross-over Period.
Elected to self-administer medications
6 Participants
Participants' Preferred DOT Method at the Conclusion of the Cross-over Period.
No preference recorded
11 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Cross-Over Period (40 observable medication doses total; approximately 8 weeks for daily regimens and 13 weeks for intermittent regimens).

After participants complete 40 doses of TB medication (20 doses using ipDOT and 20 doses using eDOT), participants will be asked to complete the Patient Opinion Questionnaire to assess their perceptions of the quality of care across DOT methods and satisfaction with patient-staff relationships/rapport.

Outcome measures

Outcome data not reported

Adverse Events

Adverse Events (AE) Reported While Using Electronic DOT (eDOT)

Serious events: 5 serious events
Other events: 26 other events
Deaths: 31 deaths

Adverse Events (AE) Reported While Using In-person DOT (ipDOT)

Serious events: 2 serious events
Other events: 24 other events
Deaths: 26 deaths

Serious adverse events

Serious adverse events
Measure
Adverse Events (AE) Reported While Using Electronic DOT (eDOT)
n=198 participants at risk
Electronic directly observed therapy (eDOT): Participants ingested anti-TB medications while treatment adherence was monitored using electronic communication methods. eDOT included live video interactions with TB program staff or recorded videos reviewed by staff to verify medication ingestion.
Adverse Events (AE) Reported While Using In-person DOT (ipDOT)
n=191 participants at risk
In-person directly observed therapy (ipDOT): Participants ingested anti-TB medications in the physical presence of TB program staff trained to monitor treatment adherence.
Gastrointestinal disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 3 or above
1.5%
3/198 • Number of events 3 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.00%
0/191 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Skin and subcutaneous tissue disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 3 or Above
0.51%
1/198 • Number of events 1 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.00%
0/191 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
General disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 3 or above
0.00%
0/198 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.52%
1/191 • Number of events 1 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Musculoskeletal and connective tissue disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 3 or above
0.51%
1/198 • Number of events 1 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.00%
0/191 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Cardiac disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 3 or above
1.0%
2/198 • Number of events 2 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.52%
1/191 • Number of events 1 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.

Other adverse events

Other adverse events
Measure
Adverse Events (AE) Reported While Using Electronic DOT (eDOT)
n=198 participants at risk
Electronic directly observed therapy (eDOT): Participants ingested anti-TB medications while treatment adherence was monitored using electronic communication methods. eDOT included live video interactions with TB program staff or recorded videos reviewed by staff to verify medication ingestion.
Adverse Events (AE) Reported While Using In-person DOT (ipDOT)
n=191 participants at risk
In-person directly observed therapy (ipDOT): Participants ingested anti-TB medications in the physical presence of TB program staff trained to monitor treatment adherence.
Gastrointestinal disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 1 or 2
6.1%
12/198 • Number of events 12 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
4.7%
9/191 • Number of events 9 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Skin and subcutaneous tissue disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 1 or 2
3.5%
7/198 • Number of events 7 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
4.2%
8/191 • Number of events 8 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
General disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 1 or 2
0.00%
0/198 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.52%
1/191 • Number of events 1 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Musculoskeletal and connective tissue disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 1 or 2
1.0%
2/198 • Number of events 2 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
3.1%
6/191 • Number of events 6 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Cardiac disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 1 or 2
1.0%
2/198 • Number of events 2 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.00%
0/191 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
Eye disorders
National Cancer Institute Common Terminology Criteria for Adverse Events - Grade 1 or 2
1.0%
2/198 • Number of events 2 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.
0.00%
0/191 • Adverse event data was collected from the time each participant enrolled in the study until the conclusion of the crossover period, an approximate duration of 8-13 weeks.
All study participants were educated about symptoms of medication side effects at their first clinic appointment, and instructed to report these side effects and any health-related concerns during each DOT session. Any unfavorable change in health was reported as an adverse event. For ipDOT and LVDOT, staff inquired about AEs at each session start. For RVDOT, participants were instructed to report any AEs at the beginning of each recording, which staff reviewed by the following business day.

Additional Information

Joseph Burzynski, MD, MPH

Bureau of Tuberculosis Control, New York City Department of Health and Mental Hygiene

Phone: 718-786-5510

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place