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NCT number NCT03415139
Study type Observational
Source Vanderbilt-Ingram Cancer Center
Contact VICC Clinical Trials Information Program
Phone 800-811-8480
Status Not yet recruiting
Phase N/A
Start date July 2018
Completion date April 2025

Clinical Trial 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.

Clinical Trial Description


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.


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.

Study Design

Related Conditions & MeSH terms

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