CClinicalTrials.gg
Active, not recruitingNCT05628337Updated Apr 27, 2025

The TEACH (Texting After ACS Discharge) Pilot Randomized Trial

An interventional study of Motivational texting and Control in Coronary Artery Disease, sponsored by Sunnybrook Health Sciences Centre. Active, not recruiting at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-27.

Sponsored by Sunnybrook Health Sciences Centre · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Jun 2022, registered Nov 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
241
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Although there have been substantial advances in the treatment of heart disease, heart attacks remain one of the leading causes of death and suffering around the world. Each year, more than 80,000 patients are hospitalized with heart attacks or related conditions in Canada. Even after discharge, patients are at high risk of having complications such that almost one in two patients after a heart attack will be readmitted to hospitals within the first year. Given the shortage of doctors and allied health care professionals, there is an emerging focus of digital health as a way to improve the care and outcomes after heart attacks. With more than 30 million cell phone users across Canada and almost all are already using text message services, the goal of this study is to conduct a pilot test using an innovative clinical trial design to see if the care and outlook of heart attack patients using mobile text messages can be improved.

Read the detailed description

The healthcare system is in desperate need of novel strategies to better engage with cardiac patients to improve care and how patients interact with the healthcare system. Although almost everyone has a mobile phone in Canada, healthcare systems have not sufficiently explored mobile health strategies that can improve health. Yet, a recent survey suggests that alternative access to healthcare is highly desirable by Canadians. Adoption of mobile health technologies has the potential to add an additional avenue for how the healthcare system can interact with patients. Most importantly, these strategies are already used by many other industries and thus can be easily implementable and expandable in healthcare institutions across the country.

Due to the COVID-19 pandemic, it has become evident that the way healthcare is delivered in the future will be different than it has been for many decades. With the conversion of many forms of care to virtual and online platforms, mobile-based care could become an important component of cardiac care. Thus, this project will help to explore the use of mobile-based virtual care platforms in cardiac follow-up in the ACS populations.

The main goal of the study is to test the feasibility and potential effects of mobile text message-based intervention on transitions of care after hospitalization with heart attack.

The hypotheses are that i) the majority of patients will be willing to participate in the pilot study and continue to receive text messages during the study, ii) the group that receives texting will have more frequent physician visits and take medication more consistently at 1 year after discharge, iii) the group that receives texting will have lower rates of readmission at 1 year after discharge.

One of the most innovative aspects of this study is the ability to conduct an intervention of mobile technology and follow-up outcomes of patients using existing registries and data that are routinely collected in day-to-day care. Accordingly, this study will be conducted at a fraction of the cost compared to a traditional randomized design. It also means that the study concept could be easily replicated in many different areas of medicine.

The main goal of the study is to test the feasibility of mobile text message-based interventions on transitions of care after hospitalization with a heart attack.

Medication compliance, re-hospitalization, and Emergency Department presentation will be tracked. These outcomes will be measured using ICES database linking patient health care number, to determine hospital admissions, ER presentations, and prescription filling.

02

Conditions studied

  • Coronary Artery Disease

Keywords

  • Mobile health
03

In context

Coronary Artery Disease

5,598 studies on the registry are indexed under Coronary Artery Disease; 957 are open to participants now.

This study's enrollment of 241 is above the median of 124 across 3,436 interventional studies indexed under Coronary Artery Disease.

Browse Coronary Artery Disease studies →

Lead sponsor

Sunnybrook Health Sciences Centre is the lead sponsor of 566 studies on the registry; 134 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 2 (33%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Patients > 18 years old
  2. Presentation or admission to Sunnybrook Hospital with diagnosis of Acute Coronary Syndrome (ACS)
  3. Access to a cellphone that can receive text messages

Exclusion criteria

Exclusion Criteria:

  1. Inability to consent for study in English
  2. Inability to read or answer English texts
  3. Lack of cellphone with SMS capability
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
241 participants (actual)

Study arms

  • Experimental
    Texting intervention group

    Subjects will receive specific health-related texts

    Other: Motivational texting

  • Placebo comparator
    Control group

    Subjects will receive general text messages without health information

    Other: Control

Interventions

  • OtherMotivational texting

    Health related information relevant to a subject's diagnosis and ongoing treatment

  • OtherControl

    Non-motivational text messages containing no specific health information

06

What researchers measure

Primary outcomes

  1. Physician visit

    Visit to a primary care physician or cardiologist specialist

    Time frame: Within one month, 3 months, and 12 months of randomization

Secondary outcomes

  1. Emergency Department presentation

    Presentation to an ED for any cause

    Time frame: Within one month, 3 months, and 12 months of randomization

  2. Re-hospitalization

    To assess the need to re-hospitalize patient due to CAD

    Time frame: Within one month, 3 months, and 12 months of hospital discharge

  3. Medication compliance

    Assessment of medication compliance related to CAD

    Time frame: Within one month, 3 months, and 12 months of hospital discharge

07

Study locations

1 site
  • Sunnybrook Health Sciences Centre
    Toronto, Ontario M4N3M5, Canada
08

References and documents

Publications

  • Sanchis-Gomar F, Perez-Quilis C, Leischik R, Lucia A. Epidemiology of coronary heart disease and acute coronary syndrome. Ann Transl Med. 2016 Jul;4(13):256. doi: 10.21037/atm.2016.06.33. PubMed 27500157 ↗
  • 2. Canadian Institute for Health Information. CIHI Data Quality Study of Ontario Emergency Department Visits 2004-2005: Volume II of IV - Main Study Findings Ottawa, Ontario 2008.3.
  • Jencks SF, Williams MV, Coleman EA. Rehospitalizations among patients in the Medicare fee-for-service program. N Engl J Med. 2009 Apr 2;360(14):1418-28. doi: 10.1056/NEJMsa0803563. PubMed 19339721 ↗
  • Krumholz HM. Post-hospital syndrome--an acquired, transient condition of generalized risk. N Engl J Med. 2013 Jan 10;368(2):100-2. doi: 10.1056/NEJMp1212324. No abstract available. PubMed 23301730 ↗
  • Leppin AL, Gionfriddo MR, Kessler M, Brito JP, Mair FS, Gallacher K, Wang Z, Erwin PJ, Sylvester T, Boehmer K, Ting HH, Murad MH, Shippee ND, Montori VM. Preventing 30-day hospital readmissions: a systematic review and meta-analysis of randomized trials. JAMA Intern Med. 2014 Jul;174(7):1095-107. doi: 10.1001/jamainternmed.2014.1608. PubMed 24820131 ↗
  • Czarnecki A, Chong A, Lee DS, Schull MJ, Tu JV, Lau C, Farkouh ME, Ko DT. Association between physician follow-up and outcomes of care after chest pain assessment in high-risk patients. Circulation. 2013 Apr 2;127(13):1386-94. doi: 10.1161/CIRCULATIONAHA.112.000737. PubMed 23547178 ↗
  • Czarnecki A, Wang JT, Tu JV, Lee DS, Schull MJ, Lau C, Farkouh ME, Wijeysundera HC, Ko DT. The role of primary care physician and cardiologist follow-up for low-risk patients with chest pain after emergency department assessment. Am Heart J. 2014 Sep;168(3):289-95. doi: 10.1016/j.ahj.2014.05.016. Epub 2014 Jun 9. PubMed 25173539 ↗
  • Wong MK, Wang JT, Czarnecki A, Koh M, Tu JV, Schull MJ, Wijeysundera HC, Lau C, Ko DT. Factors associated with physician follow-up among patients with chest pain discharged from the emergency department. CMAJ. 2015 Mar 17;187(5):E160-8. doi: 10.1503/cmaj.141294. Epub 2015 Feb 23. PubMed 25712950 ↗
  • Huo X, Krumholz HM, Bai X, Spatz ES, Ding Q, Horak P, Zhao W, Gong Q, Zhang H, Yan X, Sun Y, Liu J, Wu X, Guan W, Wang X, Li J, Li X, Spertus JA, Masoudi FA, Zheng X. Effects of Mobile Text Messaging on Glycemic Control in Patients With Coronary Heart Disease and Diabetes Mellitus: A Randomized Clinical Trial. Circ Cardiovasc Qual Outcomes. 2019 Sep;12(9):e005805. doi: 10.1161/CIRCOUTCOMES.119.005805. Epub 2019 Aug 31. PubMed 31474119 ↗
  • Thakkar J, Kurup R, Laba TL, Santo K, Thiagalingam A, Rodgers A, Woodward M, Redfern J, Chow CK. Mobile Telephone Text Messaging for Medication Adherence in Chronic Disease: A Meta-analysis. JAMA Intern Med. 2016 Mar;176(3):340-9. doi: 10.1001/jamainternmed.2015.7667. PubMed 26831740 ↗
  • Adler AJ, Martin N, Mariani J, Tajer CD, Owolabi OO, Free C, Serrano NC, Casas JP, Perel P. Mobile phone text messaging to improve medication adherence in secondary prevention of cardiovascular disease. Cochrane Database Syst Rev. 2017 Apr 29;4(4):CD011851. doi: 10.1002/14651858.CD011851.pub2. PubMed 28455948 ↗
  • Shariful Islam SM, Farmer AJ, Bobrow K, Maddison R, Whittaker R, Pfaeffli Dale LA, Lechner A, Lear S, Eapen Z, Niessen LW, Santo K, Stepien S, Redfern J, Rodgers A, Chow CK. Mobile phone text-messaging interventions aimed to prevent cardiovascular diseases (Text2PreventCVD): systematic review and individual patient data meta-analysis. Open Heart. 2019 Oct 9;6(2):e001017. doi: 10.1136/openhrt-2019-001017. eCollection 2019. PubMed 31673381 ↗
  • Chow CK, Redfern J, Hillis GS, Thakkar J, Santo K, Hackett ML, Jan S, Graves N, de Keizer L, Barry T, Bompoint S, Stepien S, Whittaker R, Rodgers A, Thiagalingam A. Effect of Lifestyle-Focused Text Messaging on Risk Factor Modification in Patients With Coronary Heart Disease: A Randomized Clinical Trial. JAMA. 2015 Sep 22-29;314(12):1255-63. doi: 10.1001/jama.2015.10945. PubMed 26393848 ↗
  • 14. Communications Monitoring Report 2018. 2019; https://crtc.gc.ca/pubs/cmr2018-en.pdf. Accessed November 1, 2019.15.
  • 15. Lauer MS, D'Agostino RB, Sr. The randomized registry trial--the next disruptive technology in clinical research? N Engl J Med. 2013;369(17):1579-1581.16. Ko DT, Alter DA, Guo H, et al. High-Density Lipoprotein Cholesterol and Cause-Specific Mortality in Individuals Without Previous Cardiovascular Conditions: The CANHEART Study. J Am Coll Cardiol. 2016;68(19):2073-2083.17.
  • Tu JV, Chu A, Rezai MR, Guo H, Maclagan LC, Austin PC, Booth GL, Manuel DG, Chiu M, Ko DT, Lee DS, Shah BR, Donovan LR, Sohail QZ, Alter DA. The Incidence of Major Cardiovascular Events in Immigrants to Ontario, Canada: The CANHEART Immigrant Study. Circulation. 2015 Oct 20;132(16):1549-1559. doi: 10.1161/CIRCULATIONAHA.115.015345. Epub 2015 Aug 31. PubMed 26324719 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 27, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05628337
Lead sponsor
Sunnybrook Health Sciences Centre
Responsible party
Sponsor
First posted
Nov 28, 2022
Start date
Jun 16, 2022
Primary completion
May 31, 2024
Completion
Jul 31, 2025 (estimated)
Last update
Apr 27, 2025

Study contacts

Dennis Ko, MD
principal investigator · Research Director

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion