Safety and Efficacy of CBX129801 in Patients With Type 1 Diabetes

January 28, 2015 updated by: Cebix Incorporated

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

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).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
250

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2C4
    • Quebec
      • Laval, Quebec, Canada, H7T 2P5
  • Sweden
      • Göteborg, Sweden, 413 45
      • Linköping, Sweden, 581 85
      • Malmo, Sweden, 20502
      • Stockholm, Sweden, 171 76
      • Umea, Sweden, 90185
  • United States
    • California
      • Escondido, California, United States, 92026
      • Fresno, California, United States, 93720
      • Irvine, California, United States, 92618
      • Los Angeles, California, United States, 90036
      • San Diego, California, United States, 92161
      • San Francisco, California, United States, 94110
      • Torrance, California, United States, 90502
      • Tustin, California, United States, 92780
      • Walnut Creek, California, United States, 94598
    • Georgia
      • Atlanta, Georgia, United States, 30318
      • Decatur, Georgia, United States, 30033
    • Idaho
      • Idaho Falls, Idaho, United States, 83404
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
    • Montana
      • Butte, Montana, United States, 59701
    • Nebraska
      • Omaha, Nebraska, United States, 68131
    • Nevada
      • Las Vegas, Nevada, United States, 89102
    • New York
      • New York, New York, United States, 10032
    • Texas
      • Dallas, Texas, United States, 75230
      • Houston, Texas, United States, 77030
      • Houston, Texas, United States, 77074
      • San Antonio, Texas, United States, 78229

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 61 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: CBX129801 High Dose
Solution for injection, 2.4 mg, weekly for 52 weeks
Drug: CBX129801
Experimental: CBX129801 Low Dose
Solution for injection, 0.8 mg, weekly for 52 weeks
Drug: CBX129801
Placebo Comparator: Placebo
Solution for injection, vehicle with no active, weekly for 52 weeks

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Bilateral change in sensory nerve conduction velocity
Time Frame: Predose and 12 months post dose
Predose and 12 months post dose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Vibration perception threshold
Time Frame: Predose and 6 and 12 months post dose
Predose and 6 and 12 months post dose
Clinical composite score
Time Frame: Predose and 6 and 12 months post dose
Predose and 6 and 12 months post dose
Pain Intensity due to DPN
Time Frame: Predose and 12 months post dose
Predose and 12 months post dose
Sexual function questionnaires
Time Frame: Predose and 6 and 12 months post dose
Predose and 6 and 12 months post dose
Quality of life questionnaire
Time Frame: Predose and 12 months post dose
Predose and 12 months post dose

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cebix Incorporated

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Dennis Kim, MD, Chief Medical Officer

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 5, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 5, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 7, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 30, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 28, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CBX129801-DN-201

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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