We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
ClinicalTrials.gov Menu
Trial record 1 of 1 for:    SimpliciT-1
Previous Study | Return to List | Next Study

Evaluation of TTP399 in Patients With Type 1 Diabetes (SimpliciT1)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT03335371
Recruitment Status : Completed
First Posted : November 7, 2017
Last Update Posted : November 27, 2020
Juvenile Diabetes Research Foundation
Information provided by (Responsible Party):
vTv Therapeutics

Brief Summary:
The purpose of this study is to evaluate the safety and efficacy of TTP399 in Type 1 diabetics. This study will be in 2 phases: phase 1 will evaluate the safety of different TTP399 dosage regimens over 1 week of daily dosing. Phase 2 will evaluate the safety and efficacy of a TTP399 dosing regimen over 12 weeks of daily dosing.

Condition or disease Intervention/treatment Phase
Diabetes Mellitus, Type 1 Drug: TTP399 Drug: Placebo Oral Tablet Phase 1 Phase 2

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 115 participants
Allocation: Randomized
Intervention Model: Sequential Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Multi-Center, Randomized, Double-Blind, Parallel-Group, Multiple-Dose, Adaptive Study Assessing the Pharmacokinetics, Pharmacodynamics, Safety, and Tolerability of TTP399 in With Adult Patients Type 1 Diabetes Mellitus
Actual Study Start Date : October 25, 2017
Actual Primary Completion Date : December 20, 2019
Actual Study Completion Date : January 6, 2020

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Diabetes Type 1

Arm Intervention/treatment
Experimental: TTP399 400 mg Drug: TTP399
Phase 1: Participants will receive TTP399 administered orally up to 1200 mg taken once daily for 7 days

Drug: TTP399
Phase 2: Participants will receive TTP399 administered orally 800 mg taken once daily for 12 weeks

Placebo Comparator: Placebo Drug: Placebo Oral Tablet
Phase 2: Participants will receive Placebo oral tablets for 12 weeks

Primary Outcome Measures :
  1. Change in HbA1c from baseline at 12 weeks [ Time Frame: Day 1 to Week 12 ]

Secondary Outcome Measures :
  1. Adverse Events [ Time Frame: Week -2 to Week 13 ]
  2. Time in target glycemic range (70-180 mg/dL) [ Time Frame: Week -2 to Week 12 ]
  3. Time in hyperglycemic range (Level 1 > 180 mg/dL, Level 2 (>250 mg/dL) [ Time Frame: Week -2 to Week 12 ]
  4. Time in hypoglycemic range (Level 1 < 70 mg/dL, Level 2 < 54 mg/dL) [ Time Frame: Week -2 to Week 12 ]
  5. Change from baseline in total daily insulin dose [ Time Frame: Week -2 to Week 12 ]
  6. Change from baseline of meal time bolus insulin [ Time Frame: Week -2 to Week 12 ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • People diagnosed with T1DM, confirmed diagnosis prior to 40 years of age and a diagnosed for minimum of 1 year.
  • Type 1 diabetics using either continuous subcutaneous insulin infusion (with lispro or aspart) or multiple daily doses of insulin
  • Willing to use adequate contraception
  • No major surgeries or significant injuries within the past year and without an active infection.

Exclusion Criteria:

  • Diagnosis of T2DM, severely uncontrolled T1DM, maturity-onset diabetes of the young, insulin-requiring T2DM, other unusual or rare forms of diabetes mellitus, diabetes resulting from a secondary disease
  • Receipt of an investigational product within 30 days of the Screening Visit or any therapeutic protein or antibody within 90 days prior to Screening Visit or any previous treatment with TTP399.
  • Living in the same household or related to another participant in this study.
  • Two severe episodes of hypoglycemia that required assistance by a third party within 3 months of Screening Visit
  • Use of antidiabetic medications other than insulin 3 months prior to Screening Visit, systemic corticosteroids 1 month prior to Screening Visit, weight loss medication 2 weeks prior to Screening Visit, and antipsychotic medications 3 months prior to Screening Visit.
  • Participation in any formal weight loss program or contemplating such therapy during the trial.
  • Recent history of use of non-prescribed controlled substances or illicit drugs.
  • Current alcoholism or a history of excessive alcohol consumption within 2 years prior to screening
  • History or presence of symptomatic autonomic neuropathy or chronic gastrointestinal disease.
  • Personal history of long QT syndrome.
  • Blood donation of approximately 1 pint (500 mL) within 8 weeks before Screening Visit
  • History of hemolytic anemia or chronic transfusion requirement.
  • History of cancer, other than non-melanoma skin cancer or uterine cervical cancer that required therapy in the past 5 years.
  • Breastfeeding

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03335371

Layout table for location information
United States, California
USC Westside Center for Diabetes
Beverly Hills, California, United States, 90211
AMCR Institute
Escondido, California, United States, 92025
United States, Colorado
University of Colorado Barbara Davis Center
Aurora, Colorado, United States, 80045
United States, Georgia
Atlanta Diabetes Associate
Atlanta, Georgia, United States, 30318
United States, Idaho
Rocky Mountain Diabetes Center
Idaho Falls, Idaho, United States, 83404
United States, Iowa
Iowa Diabetes Research
West Des Moines, Iowa, United States, 50265
United States, North Carolina
Mountain Diabetes and Endocrine Center
Asheville, North Carolina, United States, 28803
UNC Diabetes Care Center
Chapel Hill, North Carolina, United States, 27517
Duke University Diabetes Research Clinic
Durham, North Carolina, United States, 27710
Diabetes & Endocrinology Consultants
Morehead City, North Carolina, United States, 28557
PMG Research of Wilmington
Wilmington, North Carolina, United States, 28401
Wake Forest
Winston-Salem, North Carolina, United States, 27104
United States, Oklahoma
Intend Research
Norman, Oklahoma, United States, 73069
United States, Texas
Dallas Diabetes Research Center
Dallas, Texas, United States, 75230
United States, Washington
University of Washington Medicine Diabetes Institute
Seattle, Washington, United States, 98109
Sponsors and Collaborators
vTv Therapeutics
Juvenile Diabetes Research Foundation
Layout table for investigator information
Study Director: Carmen Valcarce, Ph.D. vTv Therapeutics, LLC
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Layout table for additonal information
Responsible Party: vTv Therapeutics
ClinicalTrials.gov Identifier: NCT03335371    
Other Study ID Numbers: TTP399-203
JDRF#2-IND-2018-500 ( Other Identifier: JDRF International )
First Posted: November 7, 2017    Key Record Dates
Last Update Posted: November 27, 2020
Last Verified: November 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
Layout table for MeSH terms
Diabetes Mellitus
Diabetes Mellitus, Type 1
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Autoimmune Diseases
Immune System Diseases