NCT06883318

Brief Summary

The researchers study time trends of childhood-onset type 1 diabetes and its most serious complication, end-stage renal disease. They further analyse physical, psychological and socio-economic long-term effects on patients and families to identify potentially preventive factors in a population perspective. The researchers investigate the economic burden of disease and study and improve statistical methods for case-control data. The projects use a longitudinal nationwide database involving about 23 000 childhood-onset diabetes cases with maximum follow-up of 48 years and for each case 4 matched controls. The Swedish Childhood Diabetes Register is linked to a number of official, Swedish registers: the Renal register, the Cause of Death register, the National Patient register, the Prescribed Drugs register, the Cancer register and the Integrated Database for Labour Market Research. The researchers use GAM modelling for time trend analyses, standard case-control/cohort analyses, Cox regression for life table analyses, linear fixed effect probability for career development and propensity score models for confounding. The project group is multidisciplinary and involves experts in paediatrics, nephrology, epidemiology, health economics and statistics. This unique database and team continues to yield population-based new knowledge on the consequences of this increasingly common chronic childhood-onset disease.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
115,000

participants targeted

Target at P75+ for all trials

Timeline
45mo left

Started May 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress66%
May 2019Dec 2029

Study Start

First participant enrolled

May 8, 2019

Completed
5.8 years until next milestone

First Submitted

Initial submission to the registry

March 12, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 19, 2025

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2029

Last Updated

March 24, 2025

Status Verified

March 1, 2025

Enrollment Period

10.7 years

First QC Date

March 12, 2025

Last Update Submit

March 19, 2025

Conditions

Keywords

Type 1 diabetesChildhood-onsetRisk factorsComplicationsSocioeconomic conditions

Outcome Measures

Primary Outcomes (1)

  • Incidence of type 1

    Incidence of type 1 diabetes in individuals below 15 years of age in Sweden

    From the inception of the data base in July 1977 through 2029

Study Arms (2)

Cases with childhood-onset type 1 diabetes

Healthy controls

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The Swedish Childhood Diabetes Register (SCDR) is based on collaboration with all paediatric clinics in Sweden; from 1977 until 2010 the clinics helped with data collection. Since 2011 the National Board of Health provides new incident data from insulin pre-scriptions using the Prescribed Drug register (PDR). It recruits all cases of type 1 diabetes in children below 15 years. To each case four controls have been assigned through Statistics Sweden.

You may qualify if:

  • Two prescriptions of insulin in the Prescribed Drug register.
  • Age below 15 years of age. Controls are of the same age and born in the same municipality as the cases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Clinical Sciences, Umeå University

Umeå, 901 87, Sweden

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Kidney Failure, Chronic

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System DiseasesRenal Insufficiency, ChronicRenal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
50 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 12, 2025

First Posted

March 19, 2025

Study Start

May 8, 2019

Primary Completion (Estimated)

December 31, 2029

Study Completion (Estimated)

December 31, 2029

Last Updated

March 24, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Data come from official Swedish registers through Statistics Sweden and National Board of Health and Welfare where researchers have access to pseudonymonised information. The ethical permit does not allow sharing of data.

Locations