Myocardial Infarction Prescription Duration Adherence Study (MIPAD)

March 14, 2022 updated by: Hamilton Health Sciences Corporation

Length of Initial Prescription at Hospital Discharge and Long-term Medication Adherence for Elderly Patients Post-Myocardial Infarction: An Interventional Study

Quasi-experimental, controlled interrupted time series design, evaluating the impact of the intervention at Hamilton Health Sciences (HHS) where standardized prescriptions and education will be provided and St Joseph's Hospital (SJH) and Niagara Health Services (NHS) where education alone will be provided, with remaining Ontario cardiac sites as a concurrent control group.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The overarching goal of this study is to reduce the morbidity and mortality of post-MI patients through improved long-term cardiac medication adherence.

The specific objectives include: 1. Assess the impact on long-term cardiac medication adherence following the implementation of a standardized increase in discharge prescription length to 90-days with 3 repeats in post-MI patients as compared to education alone and usual care; 2. Assess the cost implications of the intervention as compared to usual care; 3. Compare clinical outcomes between longer (>60 days) versus shorter prescription durations; 4. Collect baseline information to inform a multi-centre interventional study (i.e., simple monthly proportions of 1-year adherence by hospitals in Ontario).

Intervention:1. Policy Change implementing a standardized discharge prescription form available on all wards where MI patients are managed at HHS that includes a 90-day supply with 3 repeats for all cardiac medications, and education alone provided at SJH and NHS 2. Educational materials will be disseminated to all involved health care providers (e.g., physicians, residents, nurses) at the start of the intervention period to ensure the new discharge prescriptions are understood and used. Furthermore, extensive outreach to community pharmacies in LHIN IV will be undertaken with help from Ontario Pharmacists' Association (OPA) and Ontario Pharmacy Evidence Network (OPEN).

3. Education (e.g., emails, mail-outs, site visits) will recur every 3-4 months during the intervention period. Furthermore, monthly monitoring will ensure standardized prescription forms and point of care reminders are implemented at all intervention sites.

The intervention group will be exposed to this intervention post-MI and include all eligible patients at HHS/SJH/NHS in the 6-months post-intervention implementation.

Study Type

Interventional

Enrollment (Actual)

20896

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Ontario
      • Hamilton, Ontario, Canada, L8L 2X2
        • Hamilton General Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Use of Ontario Drug Benefits (ODB-Age >65 years, social assistance, and disability);
  • Cardiac catheterization during an index admission with an MI;
  • Evidence of obstructive coronary artery disease;
  • Discharged alive
  • Ontario Residents (Ontario, Canada)

Exclusion Criteria:

  • None

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 90 Day Supply
Intervention: At Hamilton Health Sciences a policy change implementing a standardized discharge prescription form of a 90-day supply with 3 repeats for all cardiac medications available on all wards where MI patients are managed.
Policy Change implementing a 90 day standardized discharge prescription form with 3 repeats for all cardiac medications available on all wards where MI patients are managed at Hamilton Health Sciences sites
Experimental: Education Alone
At St. Joseph's Hospital and Niagara Health System education regarding the benefits of lengthening prescriptions to a 90 day supply with 3 repeats for all cardiac medications will be implemented.
Education Alone provided at St. Joseph's Hospital and Niagara Health System
No Intervention: Control
Remaining Ontario cardiac sites will receive usual care and act as concurrent control group.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proportion of Patients with High Adherence
Time Frame: One year
Increased proportion of patients with high adherence (proportion of days covered (PDC) >80%) for the combined four cardiac medications classes at one year
One year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Difference in adherence of medication classes
Time Frame: One year
Difference in proportion with high adherence (mean PDC >80%) to the individual cardiac medication classes
One year
Difference in combined and individual medications as measured by Proportion of Days Covered (PDC)
Time Frame: One year
Difference in mean of Proportion of Days Covered (PDC >80%) of the combined cardiac medications as compared to PDC of individual cardiac medications classes as collected by Ontario Drug Benefits usage and reported to the Institute of Clinical Evaluative Sciences (ICES).
One year
Discharge Prescription Length
Time Frame: One year
Difference in discharge prescription length (<90 days and ≥90 days)
One year
Clinical outcomes as measured by number of participants who experience death, myocardial infarction, coronary revascularization, and hospital readmission
Time Frame: One year
Difference in proportion of participants experiencing death, myocardial infarction, coronary revascularization and hospital readmission at one year at each interventional site compared to control sites, as reported by Cardiac Care Network and analyzed by ICES.
One year
Cost implications
Time Frame: One year
Cost implications of interventions of each arm
One year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Investigators

  • Principal Investigator: Jon-David Schwalm, MD,FRCPC,MSc, 905-577-1423

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 5, 2017

Primary Completion (Actual)

September 30, 2018

Study Completion (Actual)

July 31, 2021

Study Registration Dates

First Submitted

June 16, 2017

First Submitted That Met QC Criteria

August 18, 2017

First Posted (Actual)

August 22, 2017

Study Record Updates

Last Update Posted (Actual)

March 16, 2022

Last Update Submitted That Met QC Criteria

March 14, 2022

Last Verified

March 1, 2022

More Information

Terms related to this study

Other Study ID Numbers

  • 2979

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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