ClinicalTrials.gg
CompletedNCT00593489AIM@GPUpdated Dec 3, 2020Results posted

Advancing Insulin Prescribing in General Practice

An interventional study of Basal Insulin Initiation Strategy in Diabetes Mellitus, sponsored by London Health Sciences Centre Research Institute and Lawson Research Institute of St. Joseph's. Completed at 1 site in Canada. Per ClinicalTrials.gov, last updated 2020-12-03.

Sponsored by London Health Sciences Centre Research Institute and Lawson Research Institute of St. Joseph's · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
154
Allocation
Randomized
Sex
All
01

Study summary

Family Physicians, the subjects of this trial are reluctant to initiate insulin in patients with type 2 diabetes due to a lack of familiarity and comfort with this clinical strategy. This study will test the effectiveness of diabetes specialist consultation support, and community pharmacy insulin initiation support on the insulin prescribing behaviour of family physicians across Canada.

Read the detailed description

The 2003 Canadian Diabetes Association clinical practice guidelines recommend early and sustained glycemic control targeting an glycosylated hemoglobin (A1C) \< 7%. The guideline target however is not achieved in 50% of patients with type 2 diabetes in the Canadian family practice setting. Family physicians are not comfortable initiating and managing insulin for their patients the Diabetes in Canada Evaluation (DICE) study found that only 12% of the 2473 patients audited were prescribed insulin; 6% insulin alone and 6% in combination. Harris et. al. found 20% of patients prescribed insulin, 15% insulin alone and 5% in combination. A strategy to increase physicians' knowledge, skill and comfort with insulin prescription is needed to better achieve glycemic control for patients with type 2 diabetes in Canada.

Purpose - The purpose of AIM@GP is to increase family physicians clinical experience and comfort with insulin prescription and better achieve glycemic control for patients with type 2 diabetes in Canada.

Primary Objective - To determine the effectiveness of a Basal Insulin Initiation strategy on family physician insulin prescribing behaviour. The strategy, using a multifaceted behaviour facilitation approach, includes diabetes specialist consultation support, and community pharmacy insulin initiation support.

Study Design - The study design is a stratified, parallel group, randomized control effectiveness study. All physicians will attend an insulin education workshop where they will receive a Diabetes Practice Profile and randomly allocated in a 1:1 manner into the intervention or control group.

02

Conditions studied

  • Diabetes Mellitus

Keywords

  • Insulin
  • Diabetes Mellitus
  • Practice Behaviour
  • Preceptor
  • Pharmacy
03

In context

Diabetes Mellitus

8,290 studies on the registry are indexed under Diabetes Mellitus; 1,077 are open to participants now.

This study's enrollment of 154 is above the median of 80 across 6,023 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

London Health Sciences Centre Research Institute and Lawson Research Institute of St. Joseph's is the lead sponsor of 351 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Full time family physicians (FP) >25 hours per week in office
  • Ability to generate a listing of patients with type 2 diabetes (T2DM) from their practice or billing records.
  • Generation of a practice list of patients with T2DM
  • A minimum of 50 patients with type 2 diabetes in their practice.
  • Support the generation of a Diabetes Practice Profile prior to the deadline established
  • A minimum of 6 insulin-eligible patients
  • Attendance at the scheduled Workshop (if unable to attend the Workshop must be available to be educated and trained by diabetes nurse educator(DNE) using a Workshop DVD)

Exclusion criteria

Exclusion Criteria:

  • FP does not attend Workshop or complete educational training using Workshop DVD with DNE guidance
  • FPs who anticipate retiring within the post-intervention period, moving their practice to another city, or having locum coverage of their practice for more than 4 weeks during the post-intervention period
  • FPs currently participating in a diabetes behaviour-change intervention trial
  • FPs working in an academic environment
  • FPs unlikely to comply with protocol, (uncooperative attitude, unlikelihood of completing the study).
05

Study design

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

Study arms

  • Experimental
    Basal Insulin Initiation Strategy

    Basal Insulin Initiation Strategy which includes: 1. support by community pharmacist 2. support by diabetes specialist

    Other: Basal Insulin Initiation Strategy

  • No intervention
    Usual Practice

    The physicians randomized to this group proceeded with their usual practice

Interventions

  • OtherBasal Insulin Initiation Strategy

    This multifaceted intervention consists of (1) Diabetes Specialist Consultation Support which entails specialists and educators providing consultation for insulin initiation and titration for the 12 months following the Workshop. Support will consist of prearranged and scheduled communications to review and advise for the first 2 months and will continue on an ad hoc basis for the remaining 10 months, with communication initiated by the physician (2)Community Pharmacy Insulin Initiation consists of trained community pharmacists providing patient education insulin initiation. Education will consist of one individual teaching session, one hour in duration, to review the insulin prescription protocol, insulin injection method, management of hypoglycemia, and self-monitoring of blood glucose.

    Also known as: Support by Specialist and Pharmacist

06

What researchers measure

Primary outcomes

  1. Insulin Prescription Rate - the Number of Insulin-eligible Patients Per 12 Months Who Are Prescribed Insulin in Each Family Physician (FP) Practice

    Insulin Prescription Rate (IPR) - the number of insulin-eligible patients per 12 months who are prescribed insulin in each family physician (FP) practice (Number of patients per year per FP). The IPR was analyzed using Poisson regression with the intervention group as a class effect and the mean HbA1c at baseline as a covariate.

    Time frame: 12 months

Secondary outcomes

  1. Mean A1C of Insulin-eligible Patient Per Family Physician Post-Workshop

    mean A1C of insulin-eligible patient per family physician participant during the post-Workshop period

    Time frame: 15 months

  2. Mean Fasting Blood Glucose of Insulin-eligible Patients

    mean fasting blood glucose (FBG) of insulin-eligible patient per family physician post-Workshop

    Time frame: 15 months

  3. Percent of Insulin-eligible Patients With Intensification of Diabetes Management Per FP Post - Workshop

    Percent of insulin-eligible patients with intensification of diabetes management (increase dose of oral anti-diabetes drug (OAD) or insulin, OAD score, the addition of insulin) per FP post - Workshop

    Time frame: 12 months

  4. Percentage of Patients at Target (A1C ≤ 7.0%) Per FP

    Percentage of patients at target (A1C ≤ 7.0%) per FP at time of the Workshop and post - Workshop

    Time frame: 15 months

  5. Percent of Patients at Target (A1C ≤ 6.5%) Per FP

    Percent of patients at target (A1C ≤ 6.5%) per FP at time of the Workshop and post - Workshop

    Time frame: 15 months

  6. Change in "Insulin Prescription Rate"

    change in "Insulin Prescription Rate" from baseline prior to the Workshop to 12 months post - Workshop

    Time frame: 12 months

  7. Glycemic Control (A1C) at Insulin Initiation, 3 and 6 Months Post Initiation

    Glycemic control (A1C) at insulin initiation, 3 months post initiation and 6 months post initiation for those prescribed insulin per family physician

    Time frame: 15 months

  8. Physician Score for Knowledge of Insulin Initiation & Titration

    physician score for knowledge of insulin initiation \& titration minimum score of 0 maximum score of 17. The greater the score the greater the knowledge.

    Time frame: 12 months

  9. Physician Score for Attitude Towards Insulin Initiation & Titration

    physician score for attitude towards insulin initiation \& titration The minimum score is 11 and the maximum is 55 with a lower score indicating the ideal attitude.

    Time frame: 12 months

  10. Physician Score for Self-efficacy of Insulin Initiation & Titration

    physician score for self-efficacy of insulin initiation \& titration where the minimum value was 10 and the maximum was 50. A value of 50 indicated complete self efficacy to initiate and titrate insulin

    Time frame: 12 months

07

Results

Posted Dec 3, 2020
Limitations and caveats
The estimated sample size of 89 physicians/group was not achieved hence the final results may have been under-powered

Participant flow

Allocation
Participant flow — Allocation
MilestoneBasal Insulin StrategyUsual Care
Started7579
Completed7378
Not completed21
Withdrew: Did not attend workshop; allocation not21
Analysis
Participant flow — Analysis
MilestoneBasal Insulin StrategyUsual Care
Started7378
Completed7378
Not completed00

Outcome measures

PrimaryInsulin Prescription Rate - the Number of Insulin-eligible Patients Per 12 Months Who Are Prescribed Insulin in Each Family Physician (FP) Practice

Insulin Prescription Rate (IPR) - the number of insulin-eligible patients per 12 months who are prescribed insulin in each family physician (FP) practice (Number of patients per year per FP). The IPR was analyzed using Poisson regression with the intervention group as a class effect and the mean HbA1c at baseline as a covariate.

Time frame:
12 months
Reported as:
Mean · patients per year
Insulin Prescription Rate - the Number of Insulin-eligible Patients Per 12 Months Who Are Prescribed Insulin in Each Family Physician (FP) Practice
patients per yearBasal Insulin StrategyUsual Care
Insulin Prescription Rate - the Number of Insulin-eligible Patients Per 12 Months Who Are Prescribed Insulin in Each Family Physician (FP) Practice2.28 ± 0.272.29 ± 0.25
Statistical analysis
  • Basal Insulin Strategy vs Usual Care · Poisson Regression · p = 0.96 · Risk ratio (rr): 0.99 · 95% CI 0.8 to 1.24
SecondaryMean A1C of Insulin-eligible Patient Per Family Physician Post-Workshop

mean A1C of insulin-eligible patient per family physician participant during the post-Workshop period

Time frame:
15 months
Reported as:
Mean · Mean % glycolyslated hemoglobin per FP
Mean A1C of Insulin-eligible Patient Per Family Physician Post-Workshop
Mean % glycolyslated hemoglobin per FPBasal Insulin StrategyUsual Care
Workshop7.12 ± 0.427.20 ± 0.52
End of Study7.09 ± 0.417.15 ± 0.51
SecondaryMean Fasting Blood Glucose of Insulin-eligible Patients

mean fasting blood glucose (FBG) of insulin-eligible patient per family physician post-Workshop

Time frame:
15 months
Reported as:
Mean · mean mmol/L per physician
Mean Fasting Blood Glucose of Insulin-eligible Patients
mean mmol/L per physicianBasal Insulin StrategyUsual Care
Workshop7.86 ± 0.677.89 ± 0.69
End of Study7.78 ± 0.687.82 ± 0.68
SecondaryPercent of Insulin-eligible Patients With Intensification of Diabetes Management Per FP Post - Workshop

Percent of insulin-eligible patients with intensification of diabetes management (increase dose of oral anti-diabetes drug (OAD) or insulin, OAD score, the addition of insulin) per FP post - Workshop

Time frame:
12 months
Reported as:
Mean · % of pts with intensification per FP
Percent of Insulin-eligible Patients With Intensification of Diabetes Management Per FP Post - Workshop
% of pts with intensification per FPBasal Insulin StrategyUsual Care
Percent of Insulin-eligible Patients With Intensification of Diabetes Management Per FP Post - Workshop31.59 ± 14.1732.80 ± 14.91
SecondaryPercentage of Patients at Target (A1C ≤ 7.0%) Per FP

Percentage of patients at target (A1C ≤ 7.0%) per FP at time of the Workshop and post - Workshop

Time frame:
15 months
Reported as:
Mean · percentage of patients per physician
Percentage of Patients at Target (A1C ≤ 7.0%) Per FP
percentage of patients per physicianBasal Insulin StrategyUsual Care
Workshop58.4 ± 16.2055.95 ± 15.65
End of Study58.68 ± 15.4057.58 ± 16.12
SecondaryPercent of Patients at Target (A1C ≤ 6.5%) Per FP

Percent of patients at target (A1C ≤ 6.5%) per FP at time of the Workshop and post - Workshop

Time frame:
15 months
Reported as:
Mean · percent of patients per physician
Percent of Patients at Target (A1C ≤ 6.5%) Per FP
percent of patients per physicianBasal Insulin StrategyUsual Care
At time of Workshop36.76 ± 14.9536.62 ± 12.55
15 months post Workshop36.13 ± 15.0636.61 ± 14.28
SecondaryChange in "Insulin Prescription Rate"

change in "Insulin Prescription Rate" from baseline prior to the Workshop to 12 months post - Workshop

Time frame:
12 months

No measurements were reported for this outcome.

SecondaryGlycemic Control (A1C) at Insulin Initiation, 3 and 6 Months Post Initiation

Glycemic control (A1C) at insulin initiation, 3 months post initiation and 6 months post initiation for those prescribed insulin per family physician

Time frame:
15 months
Reported as:
Mean · Mean % glycosylated hemoglobin per FP
Glycemic Control (A1C) at Insulin Initiation, 3 and 6 Months Post Initiation
Mean % glycosylated hemoglobin per FPBasal Insulin Initiation StrategyUsual Practice
Initiation8.82 ± 1.0989.37 ± 1.354
3 months post initiation8.32 ± 1.249.05 ± 1.344
6 months post initiation7.97 ± 1.0038.57 ± 1.382
SecondaryPhysician Score for Knowledge of Insulin Initiation & Titration

physician score for knowledge of insulin initiation \& titration minimum score of 0 maximum score of 17. The greater the score the greater the knowledge.

Time frame:
12 months
Reported as:
Mean · units on a scale
Physician Score for Knowledge of Insulin Initiation & Titration
units on a scaleBasal Insulin Initiation StrategyUsual Practice
Pre-Workshop15.5 ± 2.215.5 ± 2.5
Post-Workshop16.3 ± 1.916.9 ± 1.9
SecondaryPhysician Score for Attitude Towards Insulin Initiation & Titration

physician score for attitude towards insulin initiation \& titration The minimum score is 11 and the maximum is 55 with a lower score indicating the ideal attitude.

Time frame:
12 months
Reported as:
Mean · units on a scale
Physician Score for Attitude Towards Insulin Initiation & Titration
units on a scaleBasal Insulin Initiation StrategyUsual Practice
Pre-Workshop28.9 ± 4.929.7 ± 5.3
Post-Workshop26.1 ± 4.127.3 ± 5.3
SecondaryPhysician Score for Self-efficacy of Insulin Initiation & Titration

physician score for self-efficacy of insulin initiation \& titration where the minimum value was 10 and the maximum was 50. A value of 50 indicated complete self efficacy to initiate and titrate insulin

Time frame:
12 months
Reported as:
Mean · score on a scale
Physician Score for Self-efficacy of Insulin Initiation & Titration
score on a scaleBasal Insulin Initiation StrategyUsual Practice
Pre Workshop35.8 ± 4.6735.7 ± 3.94
Post Workshop40.6 ± 3.7339.6 ± 4.0

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Basal Insulin Strategy———
Usual Care———

Baseline characteristics

Number of physicians randomized

Age, Continuous
Age, Continuous(years)Basal Insulin StrategyUsual CareTotal
Mean51.4 ± 8.8148.2 ± 9.0649.6 ± 9.12
Sex: Female, Male
Sex: Female, Male(Participants)Basal Insulin StrategyUsual CareTotal
Female222042
Male5359112
08

Study locations

1 site
  • Lawson Health Research Institute
    London, Ontario N6A 4G5, Canada
09

References and documents

Publications

  • Harris SB, Stewart M, Brown JB, Wetmore S, Faulds C, Webster-Bogaert S, Porter S. Type 2 diabetes in family practice. Room for improvement. Can Fam Physician. 2003 Jun;49:778-85. PubMed 12836867 ↗
  • Harris, Stewart B., Ekoe, J. M., and Webster-Bogaert, M. S. The Diabetes in Canada Evaluation (DICE) Study: Are Primary Care Physicians Achieving Target A1c? Diabetes 52(Supplement 1), A499. 2003.
  • Harris SB, Gerstein HC, Yale JF, Berard L, Stewart J, Webster-Bogaert S, Tompkins JW. Can community retail pharmacist and diabetes expert support facilitate insulin initiation by family physicians? Results of the AIM@GP randomized controlled trial. BMC Health Serv Res. 2013 Feb 21;13:71. doi: 10.1186/1472-6963-13-71. PubMed 23433347 ↗

Individual participant data

Plan to share: No — There is no plan to make individual participant data available to other researchers

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jul 2006, a primary completion of Mar 2010 and a completion of Mar 2010. It does not say whether these dates are actual or estimated.

Results were first posted in Dec 2020, 10 years 9 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 4, 2008
First posted
Jan 15, 2008
Start
Jul 2006
Primary completionActual
Mar 2010
CompletionActual
Mar 2010
Results first posted
Dec 3, 2020
Last update
Dec 3, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 3, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00593489
Collaborators
Sanofi
Responsible party
Stewart Harris (Professor, Family Medicine, London Health Sciences Centre Research Institute and Lawson Research Institute of St. Joseph's) — Principal investigator
First posted
Jan 15, 2008
Start date
Jul 2006
Primary completion
Mar 2010
Completion
Mar 2010
Results posted
Dec 3, 2020
Last update
Dec 3, 2020

Study contacts

Stewart B. Harris, MD MPH FCFP
principal investigator · London Health Sciences Centre Research Institute and Lawson Research Institute of St. Joseph's

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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