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Safety and Efficacy of CBX129801 in Patients With Type 1 Diabetes

Primary Purpose

Diabetic Peripheral Neuropathy

Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
CBX129801
Sponsored by
Cebix Incorporated
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Diabetic Peripheral Neuropathy

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Key Inclusion Criteria:

  • Give informed consent;
  • 18-65 years old;
  • Have type 1 diabetes mellitus for a minimum of 5 years, with a stable diabetic regimen (for at least 3 months);
  • Have clinical signs of diabetic peripheral neuropathy at screening;
  • Have abnormal sural nerve conduction observed bilaterally during screening;
  • Be C-peptide deficient;
  • Be in good general health (besides having type 1 diabetes mellitus);
  • Practice effective contraception during and for at least 12 weeks after study participation;
  • Have a body mass index (BMI) ≥18.0 and <35.0 kg/m2.

Key Exclusion Criteria:

  • Any significant cardiovascular, hematological, lymphatic, immunologic, urologic, dermatologic, psychiatric, renal, hepatic, pulmonary, endocrine (except for diabetes mellitus), central nervous, gastrointestinal, or other major disease;
  • Unstable or inadequate glucose control;
  • Any clinically significant laboratory value at screening;
  • Occurrence of a severe, unexplainable hypoglycemic event (defined as requiring the assistance of another individual) within 6 months of Day 0, or recurrent episodes of non-severe hypoglycemia (≥3 per week on average) that are deemed clinically significant by the Investigator;
  • Have had an islet cell, kidney, and/or pancreas transplant;
  • If female, is pregnant or lactating;
  • History of alcohol or substance abuse within 2 years;
  • Positive screen for hepatitis B, hepatitis C antibody, or human immunodeficiency virus (HIV) antibody;
  • Initiation of treatment or change of dose of medication that could affect peripheral nerve function within 60 days;
  • Previous treatment with CBX129801 or unmodified C-peptide;
  • Receipt of an investigational product or therapeutic device, or participation in a drug research study, within a period of 30 days;
  • Chronic use of oral steroids or use of Ampyra (dalfampridine) within 60 days.

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Placebo Comparator

Arm Label

CBX129801 High Dose

CBX129801 Low Dose

Placebo

Arm Description

Solution for injection, 2.4 mg, weekly for 52 weeks

Solution for injection, 0.8 mg, weekly for 52 weeks

Solution for injection, vehicle with no active, weekly for 52 weeks

Outcomes

Primary Outcome Measures

Bilateral change in sensory nerve conduction velocity

Secondary Outcome Measures

Vibration perception threshold
Clinical composite score
Pain Intensity due to DPN
Sexual function questionnaires
Quality of life questionnaire

Full Information

First Posted
September 5, 2012
Last Updated
January 28, 2015
Sponsor
Cebix Incorporated
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1. Study Identification

Unique Protocol Identification Number
NCT01681290
Brief Title
Safety and Efficacy of CBX129801 in Patients With Type 1 Diabetes
Official Title
A Phase 2b, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Efficacy of CBX129801 (Ersatta™), Long-Acting Synthetic C-Peptide, in Type 1 Diabetes Mellitus Subjects With Mild to Moderate Diabetic Peripheral Neuropathy
Study Type
Interventional

2. Study Status

Record Verification Date
January 2015
Overall Recruitment Status
Completed
Study Start Date
October 2012 (undefined)
Primary Completion Date
November 2014 (Actual)
Study Completion Date
January 2015 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Cebix Incorporated

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of the study is to determine the beneficial effects of CBX129801 (PEGylated synthetic human C-peptide) following weekly subcutaneous administration for 12 months in type 1 diabetes mellitus patients (T1DM) with mild to moderate diabetic peripheral neuropathy (DPN).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diabetic Peripheral Neuropathy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
250 (Actual)

8. Arms, Groups, and Interventions

Arm Title
CBX129801 High Dose
Arm Type
Experimental
Arm Description
Solution for injection, 2.4 mg, weekly for 52 weeks
Arm Title
CBX129801 Low Dose
Arm Type
Experimental
Arm Description
Solution for injection, 0.8 mg, weekly for 52 weeks
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Solution for injection, vehicle with no active, weekly for 52 weeks
Intervention Type
Drug
Intervention Name(s)
CBX129801
Primary Outcome Measure Information:
Title
Bilateral change in sensory nerve conduction velocity
Time Frame
Predose and 12 months post dose
Secondary Outcome Measure Information:
Title
Vibration perception threshold
Time Frame
Predose and 6 and 12 months post dose
Title
Clinical composite score
Time Frame
Predose and 6 and 12 months post dose
Title
Pain Intensity due to DPN
Time Frame
Predose and 12 months post dose
Title
Sexual function questionnaires
Time Frame
Predose and 6 and 12 months post dose
Title
Quality of life questionnaire
Time Frame
Predose and 12 months post dose

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Key Inclusion Criteria: Give informed consent; 18-65 years old; Have type 1 diabetes mellitus for a minimum of 5 years, with a stable diabetic regimen (for at least 3 months); Have clinical signs of diabetic peripheral neuropathy at screening; Have abnormal sural nerve conduction observed bilaterally during screening; Be C-peptide deficient; Be in good general health (besides having type 1 diabetes mellitus); Practice effective contraception during and for at least 12 weeks after study participation; Have a body mass index (BMI) ≥18.0 and <35.0 kg/m2. Key Exclusion Criteria: Any significant cardiovascular, hematological, lymphatic, immunologic, urologic, dermatologic, psychiatric, renal, hepatic, pulmonary, endocrine (except for diabetes mellitus), central nervous, gastrointestinal, or other major disease; Unstable or inadequate glucose control; Any clinically significant laboratory value at screening; Occurrence of a severe, unexplainable hypoglycemic event (defined as requiring the assistance of another individual) within 6 months of Day 0, or recurrent episodes of non-severe hypoglycemia (≥3 per week on average) that are deemed clinically significant by the Investigator; Have had an islet cell, kidney, and/or pancreas transplant; If female, is pregnant or lactating; History of alcohol or substance abuse within 2 years; Positive screen for hepatitis B, hepatitis C antibody, or human immunodeficiency virus (HIV) antibody; Initiation of treatment or change of dose of medication that could affect peripheral nerve function within 60 days; Previous treatment with CBX129801 or unmodified C-peptide; Receipt of an investigational product or therapeutic device, or participation in a drug research study, within a period of 30 days; Chronic use of oral steroids or use of Ampyra (dalfampridine) within 60 days.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Dennis Kim, MD
Organizational Affiliation
Chief Medical Officer
Facility Information:
City
Escondido
State/Province
California
ZIP/Postal Code
92026
Country
United States
City
Fresno
State/Province
California
ZIP/Postal Code
93720
Country
United States
City
Irvine
State/Province
California
ZIP/Postal Code
92618
Country
United States
City
Los Angeles
State/Province
California
ZIP/Postal Code
90036
Country
United States
City
San Diego
State/Province
California
ZIP/Postal Code
92161
Country
United States
City
San Francisco
State/Province
California
ZIP/Postal Code
94110
Country
United States
City
Torrance
State/Province
California
ZIP/Postal Code
90502
Country
United States
City
Tustin
State/Province
California
ZIP/Postal Code
92780
Country
United States
City
Walnut Creek
State/Province
California
ZIP/Postal Code
94598
Country
United States
City
Atlanta
State/Province
Georgia
ZIP/Postal Code
30318
Country
United States
City
Decatur
State/Province
Georgia
ZIP/Postal Code
30033
Country
United States
City
Idaho Falls
State/Province
Idaho
ZIP/Postal Code
83404
Country
United States
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02115
Country
United States
City
Ann Arbor
State/Province
Michigan
ZIP/Postal Code
48109
Country
United States
City
Butte
State/Province
Montana
ZIP/Postal Code
59701
Country
United States
City
Omaha
State/Province
Nebraska
ZIP/Postal Code
68131
Country
United States
City
Las Vegas
State/Province
Nevada
ZIP/Postal Code
89102
Country
United States
City
New York
State/Province
New York
ZIP/Postal Code
10032
Country
United States
City
Dallas
State/Province
Texas
ZIP/Postal Code
75230
Country
United States
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
City
Houston
State/Province
Texas
ZIP/Postal Code
77074
Country
United States
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78229
Country
United States
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M5G 2C4
Country
Canada
City
Laval
State/Province
Quebec
ZIP/Postal Code
H7T 2P5
Country
Canada
City
Göteborg
ZIP/Postal Code
413 45
Country
Sweden
City
Linköping
ZIP/Postal Code
581 85
Country
Sweden
City
Malmo
ZIP/Postal Code
20502
Country
Sweden
City
Stockholm
ZIP/Postal Code
171 76
Country
Sweden
City
Umea
ZIP/Postal Code
90185
Country
Sweden

12. IPD Sharing Statement

Citations:
PubMed Identifier
26884473
Citation
Wahren J, Foyt H, Daniels M, Arezzo JC. Long-Acting C-Peptide and Neuropathy in Type 1 Diabetes: A 12-Month Clinical Trial. Diabetes Care. 2016 Apr;39(4):596-602. doi: 10.2337/dc15-2068. Epub 2016 Feb 16.
Results Reference
derived

Learn more about this trial

Safety and Efficacy of CBX129801 in Patients With Type 1 Diabetes

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