Comparing CGM And OGTT In Relation To Iron Overload Detected By Pancreas T2* MRI In High-Risk Hematology Group

Study Overview

Comparing CGM and OGTT in Relation to Iron Overload Detected by Pancreas T2* MRI in High-Risk Hematology Group

A prospective, observational, comparative study with no intervention.The objective of the study to compare the efficiency of detecting glycemic abnormalities using Continuous Glucose Monitoring (CGMs) versus Oral Glucose Tolerance Test (OGTT) and HbA1C (Glycated Hemoglobin) and their relation to iron overload detected by T2* MRI of the pancreas in high-risk patients due to insulin deficiency (potential beta cell injury) and those with insulin resistance and to study the different factors that may affect the glycemic control in these patients in relation to their results like the Dose of corticosteroids and chemotherapy in ALL and Hemoglobinopathies, Liver function in ALL and Hemoglobinopathies, and Serum ferritin in Hemoglobinopathies and their transfusion status. Using Validated Tools with Permission, the participants will be selected through probability (random) sampling method with expected subjects numbers ALL/L: 30-50, Thalassemia Major: 20, Sickle cell disease: 20.

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Iron Overload
Hemoglobinopathies
Lymphoma
Acute Lymphoblastic Leukemia

DIAGNOSTIC_TEST: Continuous Glucose Monitoring (CGM)
DIAGNOSTIC_TEST: Oral Glucose Tolerance Test (OGTT)
DIAGNOSTIC_TEST: T2* MRI of the Pancreas

16298/16

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 Registration Dates	Results Reporting Dates	Study Record Updates
First Submitted 2017-05-03	Results First Submitted N/A	Last Update Submitted that met QC Criteria 2017-07-24
First Submitted that Met QC Criteria 2017-05-03	Results First Submitted that Met QC Criteria N/A	Last Update Posted (ACTUAL) 2017-07-26
First Posted (ACTUAL) 2017-05-05	Results First Posted N/A	Last Verified 2017-05

Study Plan

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

Design Details

Primary Purpose:
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Allocation:
N/A

Interventional Model:
N/A

Masking:
N/A

Arms and Interventions

Participant Group/Arm	Intervention/Treatment
: High-Risk Group The objective of the study to compare the efficiency of detecting glycemic abnormalities using Continuous Glucose Monitoring (CGMs) versus Oral Glucose Tolerance Test (OGTT) and HbA1C. versus T2* MRI of the pancreas (T2* MRI of the Pancreas) in high-risk	DIAGNOSTIC_TEST: Continuous Glucose Monitoring (CGM) Where a pager-sized device fixed to the patient's forearm by a diabetic educator and it will connect to his/her body with the sensor, which measures blood glucose for three days. Patients' may experience little pain from needle prick when a sens DIAGNOSTIC_TEST: Oral Glucose Tolerance Test (OGTT) Oral glucose tolerance test requires the patient to be fasting and checking of blood sugar after 8 to 10 hours overnight fasting the blood sugar will be checked three times When you arrive to the lab then twice one hour, apart you can have pain due to nee DIAGNOSTIC_TEST: T2* MRI of the Pancreas MRI [Magnetic resonance imaging] of the pancreas which is safe and takes around 30 minutes.

Participant Group/Arm

Intervention/Treatment

: High-Risk Group

The objective of the study to compare the efficiency of detecting glycemic abnormalities using Continuous Glucose Monitoring (CGMs) versus Oral Glucose Tolerance Test (OGTT) and HbA1C. versus T2* MRI of the pancreas (T2* MRI of the Pancreas) in high-risk

DIAGNOSTIC_TEST: Continuous Glucose Monitoring (CGM)

Where a pager-sized device fixed to the patient's forearm by a diabetic educator and it will connect to his/her body with the sensor, which measures blood glucose for three days. Patients' may experience little pain from needle prick when a sens

DIAGNOSTIC_TEST: Oral Glucose Tolerance Test (OGTT)

Oral glucose tolerance test requires the patient to be fasting and checking of blood sugar after 8 to 10 hours overnight fasting the blood sugar will be checked three times When you arrive to the lab then twice one hour, apart you can have pain due to nee

DIAGNOSTIC_TEST: T2* MRI of the Pancreas

MRI [Magnetic resonance imaging] of the pancreas which is safe and takes around 30 minutes.

Primary Outcome Measures	Measure Description	Time Frame
Efficiency of continuous glucose monitoring compared to oral glucose tolerance and MRI of the Pancreas	Compare the efficiency of detecting glycemic abnormalities using CGMS versus OGTT vs HbA1C. in high-risk patients due to insulin deficiency (potential beta cell injury) and those with insulin resistance. Detect the prevalence of glycemic abnormalities detected in the same group of patients (high-risk patients) using three different modalities of testing (CGMS, OGTT, HbA1C)and T2*MRI for pancreas	12 Months

Secondary Outcome Measures	Measure Description	Time Frame

Contacts and Locations

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

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.

Ages Eligible for Study:
ALL

Sexes Eligible for Study:
14 Years

Accepts Healthy Volunteers:

This study will include participants who are High-risk patients to develop glycemic abnormalities:

Age < 14 years;
Other systemic diseases, renal disorders or malnourished;
Patients and unwilling to participate in the study.

Collaborators and Investigators

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

Investigators

PRINCIPAL_INVESTIGATOR: Mohamed Yassin, Hamad Medical Corporation

Publications

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

General Publications

Gross TM, Bode BW, Einhorn D, Kayne DM, Reed JH, White NH, Mastrototaro JJ. Performance evaluation of the MiniMed continuous glucose monitoring system during patient home use. Diabetes Technol Ther. 2000 Spring;2(1):49-56. doi: 10.1089/152091500316737.
Potts RO, Tamada JA, Tierney MJ. Glucose monitoring by reverse iontophoresis. Diabetes Metab Res Rev. 2002 Jan-Feb;18 Suppl 1:S49-53. doi: 10.1002/dmrr.210.
Bode B, Gross K, Rikalo N, Schwartz S, Wahl T, Page C, Gross T, Mastrototaro J. Alarms based on real-time sensor glucose values alert patients to hypo- and hyperglycemia: the guardian continuous monitoring system. Diabetes Technol Ther. 2004 Apr;6(2):105-13. doi: 10.1089/152091504773731285.
Hoi-Hansen T, Pedersen-Bjergaard U, Thorsteinsson B. Reproducibility and reliability of hypoglycaemic episodes recorded with Continuous Glucose Monitoring System (CGMS) in daily life. Diabet Med. 2005 Jul;22(7):858-62. doi: 10.1111/j.1464-5491.2005.01552.x.
Klonoff DC. Continuous glucose monitoring: roadmap for 21st century diabetes therapy. Diabetes Care. 2005 May;28(5):1231-9. doi: 10.2337/diacare.28.5.1231. No abstract available.
Nichols GA, Hillier TA, Brown JB. Progression from newly acquired impaired fasting glusose to type 2 diabetes. Diabetes Care. 2007 Feb;30(2):228-33. doi: 10.2337/dc06-1392. Erratum In: Diabetes Care. 2008 Dec;31(12):2414.
Barr EL, Zimmet PZ, Welborn TA, Jolley D, Magliano DJ, Dunstan DW, Cameron AJ, Dwyer T, Taylor HR, Tonkin AM, Wong TY, McNeil J, Shaw JE. Risk of cardiovascular and all-cause mortality in individuals with diabetes mellitus, impaired fasting glucose, and impaired glucose tolerance: the Australian Diabetes, Obesity, and Lifestyle Study (AusDiab). Circulation. 2007 Jul 10;116(2):151-7. doi: 10.1161/CIRCULATIONAHA.106.685628. Epub 2007 Jun 18.
Alberti KG, Zimmet PZ. Definition, diagnosis and classification of diabetes mellitus and its complications. Part 1: diagnosis and classification of diabetes mellitus provisional report of a WHO consultation. Diabet Med. 1998 Jul;15(7):539-53. doi: 10.1002/(SICI)1096-9136(199807)15:73.0.CO;2-S.
American Diabetes Association. Diagnosis and classification of diabetes mellitus. Diabetes Care. 2005 Jan;28 Suppl 1:S37-42. doi: 10.2337/diacare.28.suppl_1.s37. No abstract available.
Soliman A, DeSanctis V, Yassin M, Elalaily R, Eldarsy NE. Continuous glucose monitoring system and new era of early diagnosis of diabetes in high risk groups. Indian J Endocrinol Metab. 2014 May;18(3):274-82. doi: 10.4103/2230-8210.131130.
Chen Z, Shen J, Xu LL, Fu XJ, Li JM, Ma YY. [Accuracy of a continuous glucose monitoring system in detection of blood glucose during oral glucose tolerance test]. Nan Fang Yi Ke Da Xue Xue Bao. 2011 Jun;31(7):1256-8. Chinese.
Zhou J, Mo Y, Li H, Ran X, Yang W, Li Q, Peng Y, Li Y, Gao X, Luan X, Wang W, Xie Y, Jia W. Relationship between HbA1c and continuous glucose monitoring in Chinese population: a multicenter study. PLoS One. 2013 Dec 23;8(12):e83827. doi: 10.1371/journal.pone.0083827. eCollection 2013.
He LP, Wang C, Zhong L, Yang YZ, Long Y, Zhang XX, Shu SQ, Yu HL, Yu TT, Wang WP, Wang Y, Ran XW. [Glycemic excursions in people with normal glucose tolerance in Chengdu]. Sichuan Da Xue Xue Bao Yi Xue Ban. 2009 Jul;40(4):704-7. Chinese.
Chen T, Xu F, Su JB, Wang XQ, Chen JF, Wu G, Jin Y, Wang XH. Glycemic variability in relation to oral disposition index in the subjects with different stages of glucose tolerance. Diabetol Metab Syndr. 2013 Jul 23;5:38. doi: 10.1186/1758-5996-5-38. eCollection 2013.

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