NCT02660476

Brief Summary

QUDOS is a cross-sectional population study aiming to answer key questions about diabetes and its complications in Qatar as well as identify factors associated with the development and progression of diabetes complications.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
475

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2014

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
terminated

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

Study Start

First participant enrolled

October 1, 2014

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

May 20, 2015

Completed
8 months until next milestone

First Posted

Study publicly available on registry

January 21, 2016

Completed
7.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2023

Completed
Last Updated

June 22, 2023

Status Verified

June 1, 2023

Enrollment Period

8.7 years

First QC Date

May 20, 2015

Last Update Submit

June 18, 2023

Conditions

Keywords

DietMiddle East and North Africa countryHealthComplicationCardiovascular diseaseObesityStressObstructive Sleep Apnoea (OSA)

Outcome Measures

Primary Outcomes (1)

  • Diabetes Complications (Nephropathy, Neuropathy, Retinopathy)

    Our primary analyses will be conducted to explore the potential cross-sectional relationships amongst proposed factors related to type 2 diabetes complications

    Baseline (Cross-Sectional)

Secondary Outcomes (3)

  • Mental Health

    Baseline (Cross-Sectional)

  • Sleep and sleep related breathing disorders

    Baseline (Cross-Sectional)

  • Physical activity

    Baseline (Cross-Sectional)

Study Arms (2)

QUDOS 1

Aims to recruit 1,700 diabetic patients (including 200 with type 1 diabetes mellitus (independent of healthcare setting)) attending the hospitals and primary care

QUDOS 2

To further characterise 500 patients, from the total 1500 patients with T2DM recruited in QUDOS 1, who accept to continue with QUDOS 2 (a more detailed study and assessment).

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Adult patients 18-70 years old with diabetes, who are a resident in Qatar or born in one of the MENA countries with family originating from MENA countries, will be recruited from one of the following sites: * Primary health care centers * Hamad General Hospital * Al-Wakra Hospital * Al-Khor Hospital

You may qualify if:

  • Type 1 and Type 2 diabetes mellitus;
  • Male or Female;
  • Resident in Qatar;
  • MENA birthplace and family origin;
  • years old;
  • Capable to give informed consent and complete the study.

You may not qualify if:

  • \. Known pregnancy or planning pregnancy during the duration of study; 2. Congenital disorders; 3. Terminal illness; 4. Enrolled in a clinical trial involving medication; 5. Uncontrolled mental illness preventing participation; 6. Those who have already experienced a definitive microvascular complication:
  • i. End-stage renal disease; ii. Major amputation; iii. Blindness.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Weill Cornell Medicine Qatar

Doha, Qatar

Location

Biospecimen

Retention: SAMPLES WITH DNA

Blood, urine, saliva and stool samples

MeSH Terms

Conditions

Diabetes MellitusDiabetes Mellitus, Type 2Cardiovascular DiseasesObesitySleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesOverweightOvernutritionNutrition DisordersBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsSleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Shahrad Taheri, PhD

    Weill Cornell Medical College in Qatar

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 20, 2015

First Posted

January 21, 2016

Study Start

October 1, 2014

Primary Completion

June 1, 2023

Study Completion

June 1, 2023

Last Updated

June 22, 2023

Record last verified: 2023-06

Locations