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

NCT ID: NCT03141398

Last Updated: 2017-07-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2017-08-31

Study Completion Date

2018-12-31

Brief Summary

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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.

Detailed Description

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Conditions

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Iron Overload Hemoglobinopathies Lymphoma Acute Lymphoblastic Leukemia

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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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 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.

Continuous Glucose Monitoring (CGM)

Intervention Type DIAGNOSTIC_TEST

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 sensor is introduced.

Oral Glucose Tolerance Test (OGTT)

Intervention Type DIAGNOSTIC_TEST

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 needle prick or little bleeding at the puncture site.

T2* MRI of the Pancreas

Intervention Type DIAGNOSTIC_TEST

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

Interventions

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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 sensor is introduced.

Intervention Type 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 needle prick or little bleeding at the puncture site.

Intervention Type DIAGNOSTIC_TEST

T2* MRI of the Pancreas

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

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

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

1. Thalassemia major and SCD (beta cell toxicity and hepatic siderosis)
2. ALL/L ( beta cell injury and hepatic injury due to chemotherapy, and insulin resistance due to corticosteroids)

Exclusion Criteria

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

14 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hamad Medical Corporation

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Mohamed Yassin

Role: PRINCIPAL_INVESTIGATOR

Hamad Medical Corporation

References

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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.

Reference Type BACKGROUND
PMID: 11467320 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 11921430 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 15117576 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 15975099 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 15855600 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 17259486 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 17576864 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 9686693 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 15618111 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 24944918 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 21764709 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 24376762 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 19764578 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 23876034 (View on PubMed)

Other Identifiers

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16298/16

Identifier Type: -

Identifier Source: org_study_id

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