Phase I

During this phase of the study we were able to establish an anonymized data base of participants who shared their personal experience of managing type 1 DM for over 50 years. A comprehensive, mail-based questionnaire survey was utilized to gain valuable insight into various aspects of daily diabetes management including diet, exercise, insulin regimen, family history, medical history, complications and support network. Over 440 participants from across Canada generously shared their history and insights to successful DM management. While we have long reached our target number of volunteers, this phase of the study is still open to anyone with type 1 diabetes for a duration of 50 years or longer.

Phase II

Once we reached a sufficient number of participants in the first phase, we asked some to come in for observational, clinical exams. Currently only available to Ontario residents mostly in and around Toronto, participants with type 1 DM and non-diabetic controls were tested for their bone density, retinas, kidney function, nerve health, cardiovascular reactivity and comprehensive body chemistry analysis.


While we have reached the maximum number of type 1 participants for the second phase, we are still in search of male participants over the age of 60 and with no prior diagnosis of any type of diabetes. Physical exam results of this control cohort will be compared to those of our type 1 participants. For more information, please contact us.

Recent Initiatives:

From The Blog


We are studying the safety & effectiveness of a new oral medication in addition to insulin for treating Type 1 Diabetes. You may be eligible to participate if you: Have Type 1 Diabetes Are at least 18 years old Are currently using multiple daily insulin injections or an insulin pump Contact us for more info: […]

2016 ADA Conference in New Orleans

The Diabetes Longevity Study will be presenting 3 topics (confocal corneal microscopy, comparison of DM management aspects in US and Canadian cohorts, and renal function in older adults with longstanding T1DM) at the upcoming ADA conference in New Orleans.

Non-diabetic participants needed.

The second phase of our study is nearing its completion. It’s been a very busy and fruitful year. Thank you to all our participants and volunteers who took the time to be part of this research project. Currently, we are still in search of males over the age of 60 who have no previous diagnosis […]

Preliminary Findings: Insulin Pump vs. MDI

Prevalence of Insulin Pump Therapy and Its Association with Glycemic Control: Results from the Canadian Study of Longevity in Type 1 Diabetes   Authors:           Geneviève Boulet MD1, Elise M. Halpern MSc1, Leif E. Lovblom MSc1, Alanna Weisman MD1, Johnny-Wei Bai BHSc MD (Cand.)1, Devrim Eldelekli BM1, Hillary Keenan PhD2, Michael Brent MD3, Narinder Paul MD4, […]

Diabetes Longevity Study

For the first time in Canada we are recognizing the remarkable achievement of living with type 1 diabetes for 50 years or more…

Study Phase 1

What you need to know about the first phase of the Diabetes Longevity Study. This phase involves an extensive questionnaire which you will be able to fill out at home on your own time.
Contact us today to find out more about participating in the Diabetes Longevity Study or click the ‘Join’ button now!

Study Phase 2

Everything you need to know about the second phase of the Diabetes Longevity Study.

Study Phase 3 and Beyond

The final phases of the Diabetes Longevity Study.

What is Longevity in Diabetes?

lon·gev·i·ty /lônˈjevətē/ (Noun) Long Life. A life of great duration.

Future Goals

You hold the key to understanding the factors that lead to a successful life with type 1 diabetes.

Longevity Study Updates

Keeping you informed on our progress

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