NCT03973931

Brief Summary

The study plans to learn if sending different text messages, serving as reminders or encouragement, may help patients take their medication more often if they have had trouble keeping up with their medicines.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
9,501

participants targeted

Target at P75+ for not_applicable cardiovascular-diseases

Timeline
Completed

Started Jul 2019

Longer than P75 for not_applicable cardiovascular-diseases

Geographic Reach
1 country

4 active sites

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

First Submitted

Initial submission to the registry

May 31, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 4, 2019

Completed
27 days until next milestone

Study Start

First participant enrolled

July 1, 2019

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 25, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 19, 2023

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

April 2, 2025

Completed
Last Updated

April 2, 2025

Status Verified

March 1, 2025

Enrollment Period

3.9 years

First QC Date

May 31, 2019

Results QC Date

December 6, 2024

Last Update Submit

March 13, 2025

Conditions

Keywords

cardiovascular diseasetelemedicinemedication adherencebehavioral health

Outcome Measures

Primary Outcomes (2)

  • Medication Adherence

    The primary outcome was medication adherence defined by the proportion of days covered (PDC) using pharmacy refill data adjusted difference from usual care.

    12 months after intervention

  • Mean Proportion of Days Covered Relative to Usual Care

    We analyzed this longitudinal data (up to 12 observations per patient) and estimated absolute differences in PDC between treatment arms and usual care using a Generalized Estimating Equation (GEE) model with an identity link and independence with unequal variances for the covariance structure of the 12 observations .A multistage gatekeeper approach was used to account for multiple treatment comparisons by comparing each of the 3 treatment arms to the control in stage 1 using significance levels of 0.05/3, and if any test was significant, a significance level of (R/3)\*(0.05/3) using the Holm method was used for the 3 pairwise comparisons, where R is the number of significant stage 1 tests.

    12 months

Secondary Outcomes (3)

  • Hospitalization

    one year

  • Death

    one year

  • Emergency Department Visit

    one year

Study Arms (4)

Usual Care

NO INTERVENTION

This group will not receive an intervention. We have included a usual care group to demonstrate the impact of the text messaging interventions above and beyond usual care given that many prior medication adherence interventions have demonstrated small to negligible effects.

Generic Nudge

EXPERIMENTAL

A generic reminder text will be delivered to patients to refill their medication at days 1, 3, 5, 7 and 10 after they been labeled as non-adherent.

Behavioral: Nudge

Optimized nudge

EXPERIMENTAL

An optimized nudge text will be delivered to patients to remind them to refill their medications at days 1, 3, 5, 7 and 10 after they have been labeled as non-adherent.

Behavioral: Nudge

Optimized nudge plus AI Chat Bot

EXPERIMENTAL

An optimized nudge text will be delivered to patients to remind them to refill their medications at days 1 and 3 after they have been labeled as non-adherent. If the patient has not filled their medication on days 5 and 7, in addition to receiving an optimized nudge text, an AI will conduct interactive chat via a chat bot to assess barriers filling the medication as described in Aim 1 above. If they still have not filled the medication, they will receive another message on day 10.

Behavioral: Nudge

Interventions

NudgeBEHAVIORAL

Interventions will include a variety of text messages aimed at improving medication adherence.

Generic NudgeOptimized nudgeOptimized nudge plus AI Chat Bot

Eligibility Criteria

Age18 Years - 89 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with the following cardiovascular conditions and respective medication classes:
  • Hypertension (Beta-blockers \[B-blockers)\], Calcium Channel Blocker \[CCB\], Angiotensin converting enzyme inhibitors (ACEi), Angiotensin Receptor Blockers \[ARB\], or Thiazide diuretic)
  • Hyperlipidemia (HMG CoA reductase inhibitor \[Statins\])
  • Diabetes (Alpha-glucosidase inhibitors, Biguanides, DPP-4 inhibitors, Sodium glucose transport inhibitor, Meglitinides, Sulfonylureas, Thiazolidinediones, or statins Coronary artery disease P2Y12 inhibitor \[Clopidogrel, Ticagrelor, Prasugrel, Ticlopidine\], B-blockers, ACEi or ARB or statins)
  • Atrial fibrillation (Direct oral anticoagulants, B-blockers, CCB)

You may not qualify if:

  • Patients who do not have a mailing address listed in EHR;
  • Patients who do not have a landline or cellphone listed in EHR;
  • Currently pregnant if denoted in the EHR at the time of the data pull;
  • Patients with a mailing address outside of the state of Colorado;
  • Patients that do not speak either English or Spanish.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

UCHealth

Aurora, Colorado, 80045, United States

Location

University of Colorado Denver

Aurora, Colorado, 80045, United States

Location

VA Eastern Colorado Health Care System

Aurora, Colorado, 80045, United States

Location

Denver Health and Hospital Authority

Denver, Colorado, 80204, United States

Location

Related Publications (18)

  • Jackevicius CA, Li P, Tu JV. Prevalence, predictors, and outcomes of primary nonadherence after acute myocardial infarction. Circulation. 2008 Feb 26;117(8):1028-36. doi: 10.1161/CIRCULATIONAHA.107.706820.

    PMID: 18299512BACKGROUND
  • Ho PM, Spertus JA, Masoudi FA, Reid KJ, Peterson ED, Magid DJ, Krumholz HM, Rumsfeld JS. Impact of medication therapy discontinuation on mortality after myocardial infarction. Arch Intern Med. 2006 Sep 25;166(17):1842-7. doi: 10.1001/archinte.166.17.1842.

    PMID: 17000940BACKGROUND
  • Rasmussen JN, Chong A, Alter DA. Relationship between adherence to evidence-based pharmacotherapy and long-term mortality after acute myocardial infarction. JAMA. 2007 Jan 10;297(2):177-86. doi: 10.1001/jama.297.2.177.

    PMID: 17213401BACKGROUND
  • Spertus JA, Kettelkamp R, Vance C, Decker C, Jones PG, Rumsfeld JS, Messenger JC, Khanal S, Peterson ED, Bach RG, Krumholz HM, Cohen DJ. Prevalence, predictors, and outcomes of premature discontinuation of thienopyridine therapy after drug-eluting stent placement: results from the PREMIER registry. Circulation. 2006 Jun 20;113(24):2803-9. doi: 10.1161/CIRCULATIONAHA.106.618066. Epub 2006 Jun 12.

    PMID: 16769908BACKGROUND
  • Brown MT, Bussell JK. Medication adherence: WHO cares? Mayo Clin Proc. 2011 Apr;86(4):304-14. doi: 10.4065/mcp.2010.0575. Epub 2011 Mar 9.

    PMID: 21389250BACKGROUND
  • Wei L, Wang J, Thompson P, Wong S, Struthers AD, MacDonald TM. Adherence to statin treatment and readmission of patients after myocardial infarction: a six year follow up study. Heart. 2002 Sep;88(3):229-33. doi: 10.1136/heart.88.3.229.

    PMID: 12181210BACKGROUND
  • Wei L, Flynn R, Murray GD, MacDonald TM. Use and adherence to beta-blockers for secondary prevention of myocardial infarction: who is not getting the treatment? Pharmacoepidemiol Drug Saf. 2004 Nov;13(11):761-6. doi: 10.1002/pds.963.

    PMID: 15386713BACKGROUND
  • Lu CY, Ross-Degnan D, Soumerai SB, Pearson SA. Interventions designed to improve the quality and efficiency of medication use in managed care: a critical review of the literature - 2001-2007. BMC Health Serv Res. 2008 Apr 7;8:75. doi: 10.1186/1472-6963-8-75.

    PMID: 18394200BACKGROUND
  • Volpp KG, Loewenstein G, Troxel AB, Doshi J, Price M, Laskin M, Kimmel SE. A test of financial incentives to improve warfarin adherence. BMC Health Serv Res. 2008 Dec 23;8:272. doi: 10.1186/1472-6963-8-272.

    PMID: 19102784BACKGROUND
  • Murray MD, Young J, Hoke S, Tu W, Weiner M, Morrow D, Stroupe KT, Wu J, Clark D, Smith F, Gradus-Pizlo I, Weinberger M, Brater DC. Pharmacist intervention to improve medication adherence in heart failure: a randomized trial. Ann Intern Med. 2007 May 15;146(10):714-25. doi: 10.7326/0003-4819-146-10-200705150-00005.

    PMID: 17502632BACKGROUND
  • Lee JK, Grace KA, Taylor AJ. Effect of a pharmacy care program on medication adherence and persistence, blood pressure, and low-density lipoprotein cholesterol: a randomized controlled trial. JAMA. 2006 Dec 6;296(21):2563-71. doi: 10.1001/jama.296.21.joc60162. Epub 2006 Nov 13.

    PMID: 17101639BACKGROUND
  • Peterson PN, Campagna EJ, Maravi M, Allen LA, Bull S, Steiner JF, Havranek EP, Dickinson LM, Masoudi FA. Acculturation and outcomes among patients with heart failure. Circ Heart Fail. 2012 Mar 1;5(2):160-6. doi: 10.1161/CIRCHEARTFAILURE.111.963561. Epub 2012 Jan 13.

    PMID: 22247483BACKGROUND
  • Gurol-Urganci I, de Jongh T, Vodopivec-Jamsek V, Atun R, Car J. Mobile phone messaging reminders for attendance at healthcare appointments. Cochrane Database Syst Rev. 2013 Dec 5;2013(12):CD007458. doi: 10.1002/14651858.CD007458.pub3.

    PMID: 24310741BACKGROUND
  • de Jongh T, Gurol-Urganci I, Vodopivec-Jamsek V, Car J, Atun R. Mobile phone messaging for facilitating self-management of long-term illnesses. Cochrane Database Syst Rev. 2012 Dec 12;12(12):CD007459. doi: 10.1002/14651858.CD007459.pub2.

    PMID: 23235644BACKGROUND
  • Vodopivec-Jamsek V, de Jongh T, Gurol-Urganci I, Atun R, Car J. Mobile phone messaging for preventive health care. Cochrane Database Syst Rev. 2012 Dec 12;12(12):CD007457. doi: 10.1002/14651858.CD007457.pub2.

    PMID: 23235643BACKGROUND
  • Ho PM, Glorioso TJ, Allen LA, Blankenhorn R, Glasgow RE, Grunwald GK, Khanna A, Magid DJ, Marrs JC, Novins-Montague S, Orlando S, Peterson P, Plomondon ME, Sandy LM, Saseen JJ, Trinkley KE, Vaughn S, Waughtal J, Bull S. Personalized Patient Data and Behavioral Nudges to Improve Adherence to Chronic Cardiovascular Medications: A Randomized Pragmatic Trial. JAMA. 2025 Jan 7;333(1):49-59. doi: 10.1001/jama.2024.21739.

  • Glasgow RE, Knoepke CE, Magid D, Grunwald GK, Glorioso TJ, Waughtal J, Marrs JC, Bull S, Ho PM. The NUDGE trial pragmatic trial to enhance cardiovascular medication adherence: study protocol for a randomized controlled trial. Trials. 2021 Aug 11;22(1):528. doi: 10.1186/s13063-021-05453-9.

  • Luong P, Glorioso TJ, Grunwald GK, Peterson P, Allen LA, Khanna A, Waughtal J, Sandy L, Ho PM, Bull S. Text Message Medication Adherence Reminders Automated and Delivered at Scale Across Two Institutions: Testing the Nudge System: Pilot Study. Circ Cardiovasc Qual Outcomes. 2021 May;14(5):e007015. doi: 10.1161/CIRCOUTCOMES.120.007015. Epub 2021 May 17.

Related Links

MeSH Terms

Conditions

Cardiovascular DiseasesMedication AdherenceDiabetes MellitusHypertensionHyperlipidemiasCoronary Artery DiseaseAtrial Fibrillation

Condition Hierarchy (Ancestors)

Patient CompliancePatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehaviorGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesVascular DiseasesDyslipidemiasLipid Metabolism DisordersCoronary DiseaseMyocardial IschemiaHeart DiseasesArteriosclerosisArterial Occlusive DiseasesArrhythmias, CardiacPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Dr. Michael Ho
Organization
University of Colorado

Study Officials

  • Michael Ho, MD, PhD

    University of Colorado, Denver

    PRINCIPAL INVESTIGATOR
  • Sheana Bull, PhD, MPH

    University of Colorado, Denver

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: The study will be a pragmatic, randomized controlled study with four treatment arms. Once patients are identified through pharmacy refill data to have a 7-day gap in any prescribed CV medication refills, they will be randomized to one of four arms, described in Intervention below. Randomization will be stratified within each of the clinics, and within strata defined by number of other CV medication classes that are prescribed at randomization (1-4), using blocks of 4 patients to ensure balance within clinics over time. Thus, within each clinic and number of other medication stratum, each set of 4 consecutively enrolled subjects will be randomized to the four study arms. Treatments will be initiated immediately upon randomization, in response to the 7-day gap.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 31, 2019

First Posted

June 4, 2019

Study Start

July 1, 2019

Primary Completion

May 25, 2023

Study Completion

November 19, 2023

Last Updated

April 2, 2025

Results First Posted

April 2, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

Data collected as part of this project will be released in accordance with standard data sharing policies and procedures. Data will be made available to the broader scientific community after results are published in peer-reviewed journals. Prior to making this data available, data will be redacted to strip identifiers and further de-identified by removing indirect identifiers that could lead to "deductive disclosure" of identities. Due to the small numbers of participants in the qualitative interviews, we do not anticipate sharing raw data from individuals. The agreement will prohibit the recipient from transferring the data to other users, require that the data's security be protected by standard means and be used for research purposes only. After a requestor completes the data-sharing agreement, we will either mail a CD with a limited dataset to the requestor, or email the data through our secure email system that requires users to create an account to receive sensitive data.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
Data will be shared in a timely manner, as requested.
Access Criteria
The study team will share technical and practical knowledge regarding the creation of the chat bot and text messaging intervention, upon request. Further, the study team would readily share all data collection instruments and assessment algorithms used in the project to qualified individuals within the scientific community with the agreement that they will appropriately acknowledge the study team who developed the instruments.

Locations