Cancer, Diabetes Mellitus
Conditions
Brief summary
This clinical research studies the physiology and immunology of new-onset post-transplant diabetes mellitus in patients undergoing allogeneic stem cell transplantation. Oral glucose tolerance tests (OGTT), hyperglycemic clamps, and immune assays will be used to define the mechanisms associated with abnormal glucose homeostasis following stem cell transplantation. Information from this clinical trial could be used to develop standardized screening procedures or to develop optimal treatment strategies for patients developing post-transplant diabetes mellitus.
Detailed description
PRIMARY OBJECTIVES: I. To determine if changes in islet cell physiology are detectable before or after matched related donor (MRD) hematopoietic stem cell transplant (HCT) in patients developing new-onset post-transplant diabetes mellitus (PTDM). 1. To determine if a compensatory increase in glucose stimulated insulin secretion (GSIS) by β-cells precedes PTDM development in patients without diabetes undergoing MRD HCT. 2. To determine if excess glucagon secretion and impaired α-cell response to glucose or GLP-1 contributes to the hyperglycemia of PTDM. II. To determine if the IL-33/ST2 axis promotes immune/islet cell dysregulation during PTDM. OUTLINE: Patients undergo 2 OGTTs and a standard hyperglycemic clamp procedure prior to HCT. Patients then undergo repeat OGTTs and a hyperglycemic clamp procedure once after HCT between days 80-100.
Interventions
DRUGOral Glucose Tolerance Test (OGTT)
A standard OGTT will be performed. During OGTT 75gm of glucose will be given followed by phlebotomy.
DRUG2 OGTTs with and without GLP-1 analogue
A standard OGTT will be performed and a second OGTT procedure will be repeated on a different day with GLP-1 analogue.
DRUGHyperglycemic clamp procedure
During the hyperglycemic clamp procedure, D20 will given, followed by phlebotomy.
Sponsors
Vanderbilt-Ingram Cancer Center
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No
Inclusion criteria
for Patients: * Patients undergoing allogeneic hematopoietic stem cell transplantation (HCT).
Exclusion criteria
for Patients: * Patients who have not received an allogeneic HCT * Recent or current history of diabetes mellitus, defined as:1) diabetes therapy within 6 months of enrollment, or 2) fasting blood glucose at pre-admit (screening) visit \>= 126 mg/dL * Pregnancy or breastfeeding * Umbilical cord blood transplants * Patients on established, chronic corticosteroid therapy (\> 10 mg /day of prednisone or prednisone equivalent) prior to transplant; established, chronic corticosteroid therapy is defined as daily dosing of \> 10 mg/day of prednisone or prednisone equivalent for at least 2 weeks prior to the start of conditioning/chemotherapy or plans to continue pre-transplant corticosteroids (\> 10 mg/day of prednisone or prednisone equivalent) indefinitely after transplantation * Inability to give informed consent * Any condition which, in the opinion of the investigator, might interfere with study objective * Any reason which, in the opinion of the investigator, adds additional risk to the patient Additional
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pre-transplant insulin secretion will be measured as glucose stimulated insulin secretion (GSIS) during a hyperglycemic clamp procedure among patients who do or do not go on to develop PTDM (univariable analysis). | Up to 28 days pre-transplant | A hyperglycemic clamp procedure will be performed pre-transplant. Pre-transplant will be defined as no more than 28 days before allogeneic hematopoietic cell transplantation. Patients will then be followed for 100 days after transplant for development of diabetes. In univariable analysis, a Wilcoxon rank sum test will be applied to compare the population mean difference in GSIS between these two groups. |
| Pre-transplant insulin secretion will be measured as glucose stimulated insulin secretion (GSIS) during a hyperglycemic clamp procedure among patients who do or do not go on to develop PTDM (multivariable analysis). | Up to 28 days pre-transplant | A hyperglycemic clamp procedure will be performed pre-transplant. Pre-transplant will be defined as no more than 28 days before allogeneic hematopoietic cell transplantation. Patients will then be followed for 100 days after transplant for development of diabetes. In multivariable analysis, logistic regression will evaluate whether GSIS is an independent predictor of PTDM after adjusting for the following covariates: gender, conditioning (ablative vs. reduced intensity), or acute graft-versus-host disease (GVHD) requiring steroids. The estimated odds ratio (OR) and 95% confidence interval of the OR will be provided to measure the effect of the association. |
| Post-transplant glucagon secretion will be measured during the oral glucose tolerance test among patients who do or do not develop PTDM (univariable analysis). | Up to 100 days after transplant | Patients will be followed for 100 days after transplant for development of diabetes. In univariable analysis, a Wilcoxon rank sum test will be applied to compare the population mean difference in glucagon secretion between these two groups. |
| Post-transplant glucagon secretion will be measured during the oral glucose tolerance test among patients who do or do not develop PTDM (multivariable analysis). | Up to 100 days after transplant | Patients will be followed for 100 days after transplant for development of diabetes. In multivariable analysis, a logistic regression will evaluate whether glucagon secretion is independently associated with PTDM after adjusting for the following covariates: gender, conditioning (ablative vs. reduced intensity), or acute graft-versus-host disease (GVHD) requiring steroids. The estimated odds ratio (OR) and 95% confidence interval of the OR will be provided to measure the effect of the association. |
| Plasma IL-33 levels will be measured among patients who do or do not develop PTDM (univariable analysis). | Up to 100 days after transplant | Patients will be followed for 100 days after transplant for development of diabetes. In univariable analysis, a Wilcoxon rank sum test will be applied to compare the population mean difference in IL-33 between these two groups. |
| Plasma IL-33 levels will be measured among patients who do or do not develop PTDM (multivariable analysis). | Up to 100 days after transplant | In multivariable analysis, logistic regression will evaluate whether IL-33 is independently associated with PTDM after adjusting for the following covariates: gender, conditioning (ablative vs. reduced intensity), or acute graft-versus-host disease (GVHD) requiring steroids. The estimated odds ratio (OR) and 95% confidence interval of the OR will be provided to measure the effect of the association. |
Countries
United States
Contacts
Primary ContactVICC Clinical Trials Information Program
Backup ContactBrian G. Engelhardt, M.D.
Outcome results
None listed