NCT03794960

Brief Summary

The study is a prospective, randomized, double-blind, placebo-controlled, multicenter trial in subjects with established T1D.

Trial Health

15
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Dec 2019

Typical duration for phase_2

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 3, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 7, 2019

Completed
11 months until next milestone

Study Start

First participant enrolled

December 14, 2019

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 14, 2021

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 14, 2023

Completed
Last Updated

December 8, 2020

Status Verified

December 1, 2020

Enrollment Period

2 years

First QC Date

January 3, 2019

Last Update Submit

December 4, 2020

Conditions

Keywords

DiabetesType 1 DiabetesDiabetes Mellitus

Outcome Measures

Primary Outcomes (1)

  • Treatment Effect

    The primary outcome is the treatment effect on log-transformed MMTT C-peptide area under the curve (AUC) after 52 weeks of TOL-3021 treatment

    at Week 52

Secondary Outcomes (22)

  • Rate of Clinically important hypoglycemia as defined by measured glucose value of <54 mg/dL (3.0 mM/L)

    at Week 52

  • Rate of Clinically important hypoglycemia as defined by measured glucose value of <54 mg/dL (3.0 mM/L)

    at Week 52

  • Rate of Clinically important hypoglycemia as defined by measured glucose value of <54 mg/dL (3.0 mM/L)

    at Week 52

  • Rate of Clinically important hypoglycemia as defined by measured glucose value of <54 mg/dL (3.0 mM/L)

    at Week 52

  • Clinical responder analysis

    at Week 52

  • +17 more secondary outcomes

Study Arms (2)

TOL-3021

EXPERIMENTAL
Biological: TOL-3021

TOL-3021 Placebo

PLACEBO COMPARATOR
Other: TOL-3021 Placebo

Interventions

TOL-3021BIOLOGICAL

A plasmid expression vector containing the coding sequences for full-length human proinsulin.

TOL-3021

TOL-3021 Placebo

Also known as: Placebo
TOL-3021 Placebo

Eligibility Criteria

Age12 Years - 36 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Diagnosis of Type 1 Diabetes Mellitus based on American Diabetes Association (ADA) criteria and within 1.0 to 5.0 years from diagnosis, defined as the first day of insulin administration.
  • Adequate glycemic control for \>14 days, defined as 3 consecutive fasting glucose levels by self-administered blood glucose (SMBG) or lab testing \<130 mg/dL.
  • Age at randomization of 12.0 - \<18.0 years (adolescent), 18.0 - \<36.0 years of age (adult) .
  • HbA1c \<8.5% based on point-of-care or local lab measurement.
  • Measurement can be repeated every 5-7 days if \>8.5%.
  • Presence of antibodies to at least one of the following antigens: GAD-65, IA-2, ZnT8; or insulin.
  • Peak C-peptide during screening 4-hour mixed meal tolerance test (MMTT) ≥ 0.2pmol/mL.
  • Willingness to wear a continuous glucose monitoring (CGM) device for specified periods of time.
  • Written informed consent, including authorization to release health information and assent for adolescent subjects.
  • Willingness and ability of subject or adult guardian to comply with all study procedures of the study protocol, including attending all clinic visits.

You may not qualify if:

  • Body Mass Index (BMI) \>30 kg/m2 for adults; \>95 percentile BMI-for-age for subjects under 18 years of age.
  • Previous immunotherapy for T1D.
  • Diagnosis of liver disease or hepatic enzymes, as defined by ALT and/or AST ≥ 2.5 times the upper limit of normal (ULN).
  • Hematology: white blood cells (WBC) \<3 x 109/L; platelets \<100 x 109/L; hemoglobin \<10.0 g/dL. (Low WBC values may be repeated every 3-7 days, and results to be discussed with the Medical Monitor.)
  • Serum creatinine \>1.5 times ULN.
  • History of malignancy, except for cancers in remission \>5 years, or basal cell or in situ squamous cell carcinoma of the skin.
  • Significant cardiovascular disease (including inadequately controlled hypertension), history of myocardial infarction, angina, use of anti-anginal medicines (e.g., nitroglycerin), or abnormal stress test, which, in the opinion of the Principal Investigator (PI), would interfere with participation in the trial.
  • Immunosuppressive therapy (systemic corticosteroids, cyclosporine, azathioprine, or biologics) within 30 days of screening.
  • Current or prior (within the last 30 days) use of metformin, sulfonylureas, glinides, thiazolidinediones, GLP1-RAs, DPP-IV inhibitors, pramlintide, or SGLT-2 inhibitors.
  • Current use of verapamil or α-methyldopa.
  • History of any organ transplant, including islet cell transplant.
  • Active autoimmune or immune deficiency disorder other than T1D or well-controlled autoimmune thyroid disease (e.g., sarcoidosis, rheumatoid arthritis, moderate-to-severe psoriasis, inflammatory bowel disease, and other autoimmune conditions that may require treatment with TNF or other biologics), unless approved by the Medical Monitor.
  • Thyroid-stimulating hormone (TSH) at screening \>2.5 mIU/L.
  • History of adrenal insufficiency.
  • Evidence of infection with HBV (as defined by hepatitis B surface antigen, HBsAg), HCV (anti-HCV antibodies), or HIV.
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 3, 2019

First Posted

January 7, 2019

Study Start

December 14, 2019

Primary Completion

December 14, 2021

Study Completion

December 14, 2023

Last Updated

December 8, 2020

Record last verified: 2020-12