TADPOL Study: DFMO for Type 1 Diabetes

This study is testing a drug called DFMO in people with recently diagnosed Type 1 Diabetes (T1D). The goal is to see if DFMO can help reduce stress on cells that make insulin and preserve the body's natural insulin production. You could be eligible if you are between 4 and 40 years old, have a T1D diagnosis within the last 100 days, and show some remaining insulin production (C-peptide level >0.2 pmol/mL) and specific diabetes-related antibodies. Participants will take either DFMO or a placebo (an inactive substance that looks like DFMO) twice a day for about 6 months. The study will measure how well DFMO works after 6 months and track any side effects throughout the study, which lasts about one year.

Study design
This is a Phase II, multicenter, double-blind, placebo-controlled study with 81 participants. Participants will be randomly assigned to receive either DFMO or placebo in a 2:1 ratio.
What's involved
You would have 6 in-person visits and 1 phone visit over 12 months. Visits will include blood draws, urine collection, and other tests.
Compensation
Not stated in the trial record.
Follow-up
The durability of the effect will be assessed after a 6-month wash-out period, following the 6-month treatment period.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05594563

TArgeting Type 1 Diabetes Using POLyamines (TADPOL)

Active, Not Recruiting
PHASE2Ages 4–40InterventionalTreatment
Emily K. Sims
~74 participants
Updated 2026-08-21 on ClinicalTrials.gov
What's tested:DFMOPlacebo

At a glance

Recruiting sites
0 of 7 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Clinical efficacy of 1000 mg/m2/day of oral DFMO after 6 months of treatment
Measured over 6 month
+1 more outcome measured
Type 1 Diabetes
7 sites across 7 states
Colorado1
Illinois1
Indiana1
Kansas1
Michigan1
Minnesota1
Wisconsin1
  • Emily K Sims, MD,MS · STUDY_CHAIR · Indiana University

This trial hasn't published a contact. View it on ClinicalTrials.gov

  • Clinical efficacy of 1000 mg/m2/day of oral DFMO after 6 months of treatment6 month

    Primary endpoint defining clinical efficacy will be based on mixed-meal stimulated C-peptide area under the curve (AUC; in arbitrary units) in the treatment group compared to placebo after 6 months of DFMO treatment

  • Number of participants with treatment-related adverse events as assessed by CTCAE v5through study completion, an average of one year

    A summary of serious and non-serious adverse events (AEs) will be reported.