TArgeting Type 1 Diabetes Using POLyamines (TADPOL)

NCT ID: NCT05594563

Last Updated: 2025-09-23

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

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-14

Study Completion Date

2028-05-31

Brief Summary

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The goal of this clinical trial is to test a drug known as DFMO in people with Type 1 Diabetes (T1D). The main question\[s\] it aims to answer are:

* Does it reduce stress on the cells that make insulin?
* Does it preserve what is left of the body's insulin production? Participants will take either DFMO or a placebo (looks like DFMO but has no active ingredients) two times a day for about 6 months. Participants will have 6 in person visits and 1 phone visit over a period of 12 months. Visits will include blood draws urine collection and other tests.

Detailed Description

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This study will be a multicenter, double-blind, placebo-controlled, 2:1 random assigned, phase II clinical trial for individuals with recent onset type 1 diabetes. The investigators are conducting a double masked placebo-controlled intention to treat study enrolling persons with new onset T1D with documented continued residual C-peptide production. Within 45 days of screening and a run-in period during which eligibility will be determined and glycemic control optimized, subjects will have a 6-month double-masked treatment period with either DFMO or placebo. After a 6-month wash-out period the durability of effect will be assessed. Subjects will be randomly assigned either 1000mg/m2/day oral DFMO or placebo treatment at a 2:1 ratio.

Conditions

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Type 1 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Subject are randomized to either treatment or placebo arm.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators
Participant, Care provider and Investigator blinded

Study Groups

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Treatment Arm

Difluoromethylornithine (DFMO) pill ,1000mg/m2/day, for 6 months

Group Type ACTIVE_COMPARATOR

DFMO

Intervention Type DRUG

DFMO orally twice a day

Placebo Arm

Placebo pill taken twice a day orally for 6 months

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo orally twice a day

Interventions

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DFMO

DFMO orally twice a day

Intervention Type DRUG

Placebo

Placebo orally twice a day

Intervention Type DRUG

Other Intervention Names

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Difluoromethylornithine

Eligibility Criteria

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Inclusion Criteria

1. Males and females 4- ≥40 years of age with a clinical diagnosis of T1D
2. T1D clinical diagnosis with insulin start date no more than 100 days prior to the time of randomization
3. Random non-fasting C-peptide level of \>0.2 pmol/mL (equivalent to \>0.6ng/ml) at screening.
4. Positive for any one of the following diabetes-related autoantibodies (IAA, GAA, IA-2, or ZnT8)
5. Treatment naïve of any immunomodulatory agent
6. Normal hearing at screening, defined as acceptable results of pure-tone audiometry (\<20 decibel \[dB\] baseline thresholds forall frequencies tested

Exclusion Criteria

1. Presence of severe, active disease that interferes with dietary intake or requires the use of chronic medication, with the exception of well-controlled hypothyroidism and mild asthma not requiring oral steroids. Presence of any psychiatric disorder that will affect ability to participate in study.
2. Diabetes other than T1D
3. Chronic illness known to affect glucose metabolism (e.g. Cushing syndrome, polycystic ovarian disorder, cystic fibrosis) or taking medications that affect glucose metabolism (e.g. steroids, metformin)
4. Inability to swallow pills
5. Psychiatric impairment or current use of anti-psychotic medication
6. Any condition that, in the investigator's opinion, may compromise study participation or may confound the interpretation of the study results.
7. Neutropenia (\< 1,500 neutrophils/μL)
8. Leukopenia (\< 3,000 leukocytes /μL)
9. Lymphopenia ( \< 800 lymphocytes/μL)
10. Thrombocytopenia (\<100,000 platelets/μL)
11. Clinically significant anemia or Hemoglobin as defined below:

In Adults: Hgb \<12.0g/dL in females and \<13.0g/dL in males In Children: 12- \<18: \<11.4 g/dL in females and \<12.4 g/dL in males In Children: 4- \<12: Hgb \<11.2 g/dL
12. Impaired renal function (assessed by history and BUN/Creatinine, DFMO is renally excreted)
13. Allergy to milk or soy (components of Boost® drink used for mixed meal tolerance testing)
14. Female participants of child-bearing age with reproductive potential, must not be pregnant and agree to use 2 effective forms of birth control or be abstinent during the study period (see below). Male participants (including men who have had vasectomies) whose partners are pregnant or may be pregnant should use condoms while on study drug, until 2 weeks after discontinuation of drug, while the partner is pregnant.
15. Active seizure disorder, defined as requiring chronic medication at the time of study or having had a seizure within the past 12 months at the time of screening
16. Enrollment into another intervention trial.
Minimum Eligible Age

4 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Juvenile Diabetes Research Foundation

OTHER

Sponsor Role collaborator

Cancer Prevention Pharmaceuticals, Inc.

INDUSTRY

Sponsor Role collaborator

Emily K. Sims

OTHER

Sponsor Role lead

Responsible Party

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Emily K. Sims

Associate Professor of Pediatrics

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Emily K Sims, MD,MS

Role: STUDY_CHAIR

Indiana University School of Medicine

Locations

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Barbara Davis Center

Aurora, Colorado, United States

Site Status RECRUITING

University of Chicago

Chicago, Illinois, United States

Site Status RECRUITING

IU Health Riley Hospital for Children

Indianapolis, Indiana, United States

Site Status RECRUITING

Children's Mercy Hospital

Kansas City, Kansas, United States

Site Status RECRUITING

University of Michigan

Ann Arbor, Michigan, United States

Site Status RECRUITING

MHealth Fairview Masonic Children's Hospital and Specialty Clinics

Minneapolis, Minnesota, United States

Site Status RECRUITING

Medical College of Wisconsin

Milwaukee, Wisconsin, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Maria L Spall, BSN

Role: CONTACT

317-278-7034

Operations Manager

Role: CONTACT

317-278-8879

Facility Contacts

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Lexie Chesshir, RN

Role: primary

303-724-1755

Cathleen Mulcahy, PhD,RN

Role: primary

773-702-9968

Ellie M Moreau

Role: primary

317-278-7037

T1D Research

Role: backup

317-278-8879

Morgan Rainey, RN

Role: primary

816-460-1097

Aimee Katona

Role: primary

734-615-4079

Beth Pappenfus

Role: primary

612-624-6682

LaTonda Tyler

Role: primary

414-955-8486

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Other Identifiers

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4-SRA-2022-1205-M-B

Identifier Type: -

Identifier Source: org_study_id

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