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Diabetes Mellitus, Type 1Phase 2TTEDDNCT00451321

TRX4 Monoclonal Antibody in Type 1 Diabetes (T1 DM)

A Phase 2 study testing Otelixizumab in people with Diabetes Mellitus, Type 1, run by GlaxoSmithKline at 17 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to optimize several multi-dose regimens of otelixizumab, determine the highest biologically active dose, evaluate biomarkers and surrogates of efficacy, and to evaluate the effects of each multi-dose regimen of otelixizumab against standard safety and efficacy parameters. Read more about this study

Who is it for?
Ages 12 to 45 years
Conditions the study is for
Diabetes Mellitus, Type 1
What is being tested?
Otelixizumab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
88 participants
Where
17 sitesin 2 countries
Study dates
31 Jul 2006to 1 Dec 2011
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 12 to 45 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Adults 12 to 45 years old who are in good general health
  • Confirmed diagnosis of insulin requiring type 1 diabetes mellitus with good glycemic control
  • Measurable C-peptide levels

Who cannot join

  • Females must not be pregnant or lactating and willing to practice contraception
  • No prior malignancy, other than non-melanoma skin cancer
  • Body Mass Index (BMI) > 32 at screening

Trial locations and contacts

17 sites in 2 countries.

17 sites in 2 countries

United States16 sites
  • GSK Investigational Site

    Aurora, Colorado, 80045

  • GSK Investigational Site

    Baltimore, Maryland, 21201

  • GSK Investigational Site

    Birmingham, Alabama, 35294

  • GSK Investigational Site

    Chicago, Illinois, 60637

  • GSK Investigational Site

    Gulfport, Mississippi, 39501

  • GSK Investigational Site

    Jacksonville, Florida, 32207

  • GSK Investigational Site

    Kalamazoo, Michigan, 49048

  • GSK Investigational Site

    Mentor, Ohio, 44060

  • GSK Investigational Site

    Minneapolis, Minnesota, 55455

  • GSK Investigational Site

    Omaha, Nebraska, 68131

  • GSK Investigational Site

    Pinellas Park, Florida, 33781

  • GSK Investigational Site

    Rapid City, South Dakota, 57701

  • GSK Investigational Site

    San Antonio, Texas, 78229-4801

  • GSK Investigational Site

    Walnut Creek, California, 94598

  • GSK Investigational Site

    Washington D.C., District of Columbia, 20037

  • GSK Investigational Site

    Worcester, Massachusetts, 1655

Other trials in United States

Canada1 site
  • GSK Investigational Site

    Toronto, Ontario, M4G 3E8

Other trials in Canada

About this study

Official title: TRX4 Therapeutic Evaluation of Different Multi-Dose Regimens in Type 1 Diabetes Mellitus (TTEDD)

The purpose of this study is to optimize several multi-dose regimens of otelixizumab, determine the highest biologically active dose, evaluate biomarkers and surrogates of efficacy, and to evaluate the effects of each multi-dose regimen of otelixizumab against standard safety and efficacy parameters.

Being tested
Otelixizumab
Keywords
type 1 diabetes mellitus, diabetes mellitus type 1, type 1 diabetes, diabetes mellitus, diabetes
Medical subject headings
Diabetes Mellitus, Type 1, Diabetes Mellitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • OtelixizumabDrug

    Infusion

Study groups in NCT00451321
Study groupRoleWhat they receive
otelixizumabExperimentalNot described
Receives: Drug: Otelixizumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Any Adverse Events (AEs) and Serious Adverse Events (SAEs)

    AE is any untoward medical occurrence in a clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. SAE include adverse events that result in any of the following outcomes: death, a life-threatening adverse event, inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant incapacity or substantial disruption of the ability to conduct normal functions, or a congenital anomaly/birth defect. Important medical events that may not result in death, be life-threatening, or require hospitalization may be considered serious when, based upon appropriate medical judgment, they may jeopardize the participant and may require medical or surgical intervention to prevent one of the outcomes listed in this definition.

    Measured: Up to Month 24

  2. Number of Participants With Cytokine Release AE

    AE is any untoward medical occurrence in a clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Cytokine release AEs were defined as occurring during dosing or within a limited time window after the last dose.

    Measured: Up to Month 24

  3. Number of Participants With Abnormal Hematology Values of Potential Clinical Concern (PCC)

    Hematology parameters: hemoglobin, white blood cell (WBC) count, basophils, eosinophils, lymphocytes, monocytes, neutrophils, platelet count, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration were assessed for abnormal PCC values. Data for abnormal parameters (high and low) is presented. Only those parameters for which at least one value of PCC was reported are summarized.

    Measured: Up to Month 48

  4. Number of Participants With Abnormal Clinical Chemistry Values of PCC

    Clinical chemistry parameters: alkaline phosphatase, alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin, gamma-glutamyl transferase, lactate dehydrogenase, lipids, blood urea nitrogen, creatinine, uric acid, sodium, potassium, chloride, carbon dioxide, creatinine phosphokinase, albumin, calcium, magnesium, glucose, phosphate, bicarbonate and total protein were assessed for abnormal PCC values. Data for abnormal parameters (high and low) is presented. Only those parameters for which at least one value of PCC was reported are summarized.

    Measured: Up to Month 48

  5. Number of Participants With Abnormal Urinalysis Dipstick Results

    Urinalysis parameters: Occult blood, Glucose urine, Ketones, Leukocyte esterase, Nitrite, pH, Protein urine were assessed. Abnormal values for occult blood and ketones were presented as 1+, 2+ and 3+ (the plus sign increases with a higher level of parameters: 1+=slightly positive, 2+=positive, 3+=high positive). Abnormal glucose urine values were presented as 50, 100, 250 and 1000 mg/dL. Abnormal nitrite values were presented as 'positive', and abnormal urine protein values were presented as 30 and 100 mg/dL.

    Measured: Up to Month 48

  6. Mean Overall Maximum Cytokines Level

    Levels of cytokines: interferon (IFN)-gamma, interleukin (IL)-10, IL-6 and tumor necrosis factor (TNF)-alpha were assessed. One sample was collected at Baseline, on dose Day 1 at 1, 2, 3, and 8 hours post-end of infusion (EOI) and on all other dosing days at pre-dose, and 1, 2, 3, and 8 hour post-EOI. After the completion of dosing, on Day 21 and Week 8, only the IL-10 level was assessed in the cytokine blood sample.

    Measured: Up to Week 8

  7. Number of Participants With Positive Epstein Barr Virus (EBV) Viral Load

    EBV load was measured using quantitative polymerase chain reaction (PCR) method. If a participant had an EBV viral load of >100,000 copies/10^6 peripheral blood mononuclear cells (c/10^6 PBMC) lymphocytes at any time post-dose, the test was repeated immediately. Data for participants with abnormal viral load is presented.

    Measured: Up to Month 18

Secondary outcomes (13)
  1. Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUClast) of Otelixizumab

    Pharmacokinetic (PK) samples were obtained at Baseline, and on all dose days except the final dose day, at pre-dose, EOI, and 4 hour post-SOI. On Dose Day 5, samples were collected at pre-dose, EOI, and 3.5, 4, 5, and 8-10 hour post-SOI. The lower limit of quantification was 0.019 micrograms per milliliter (µg/mL). The 'PK summary Population' was defined as participants in the 'All Subjects' Population for whom a pharmacokinetic sample was obtained and analyzed, and who received the full scheduled dose, as specified in the protocol. Only those participants available at the specified time points were analyzed.

    Measured: At Baseline, and on all dose days except the final dose day, at pre-dose, EOI, and 4 hour post-start of infusion (SOI). On Dose Day 5, at pre-dose, EOI, and 3.5, 4, 5, and 8-10 hour post-SOI.

  2. Maximum Plasma Drug Concentration (Cmax) of Otelixizumab

    PK samples were obtained at Baseline, and on all dose days except the final dose day, at pre-dose, EOI, and 4 hour post-SOI. On Dose Day 5, samples were collected at pre-dose, EOI, and 3.5, 4, 5, and 8-10 hour post-SOI. The lower limit of quantification was 0.019 µg/mL. Only those participants available at the specified time points were analyzed.

    Measured: At Baseline, and on all dose days except the final dose day, at pre-dose, EOI, and 4 hour post-SOI. On Dose Day 5, at pre-dose, EOI, and 3.5, 4, 5, and 8-10 hour post-SOI.

  3. Time of Last Quantifiable Drug Concentration (Tlast) and Time of Occurrence of Maximum Plasma Drug Concentration (Tmax) of Otelixizumab

    PK samples were obtained at Baseline, and on all dose days except the final dose day, at pre-dose, EOI, and 4 hour SOI. On Dose Day 5, samples were collected at pre-dose, EOI, and 3.5, 4, 5, and 8-10 hour post-SOI. The lower limit of quantification was 0.019 µg/mL. Only those participants available at the specified time points were analyzed.

    Measured: At Baseline, and on all dose days except the final dose day, at pre-dose, EOI, and 4 hour post-SOI. On Dose Day 5, at pre-dose, EOI, and 3.5, 4, 5, and 8-10 hour post-SOI.

  4. Mean Lymphocytes Subsets (CD19+ B Cells, CD4+CD25hiFoxP3+ T Cells, CD8+CD25+FoxP3+ T Cells) Count

    One sample was collected at the screening visit and at Baseline. On dose Day 1, samples were collected at EOI and 4 hour post-SOI. On all other dosing days, samples were collected at pre-dose, EOI and 4 hour post-SOI. To obtain absolute counts for each lymphocyte subset (CD19+ B cells, CD4+CD25hiFoxP3+ T cells, CD8+CD25+FoxP3+ T cells) the proportion of total lymphocytes constituting that subset was multiplied by the total count for the same participant at the same time point. The data was collected on Baseline, Days 1 to 8, Days 14, 21, 28, Weeks 6, 8, 10, 12, Months 4, 5, 6, 12, 24, 36 and 48. However data for Days 8 and 28 is presented. The 'Pharmacodynamic (PD) summary population' was defined as participants in the 'All Subjects' Population for whom a PD sample was obtained and analyzed and who received the full scheduled dose, as specified in the protocol.

    Measured: Day 8 and 28

  5. Mean Lymphocytes Subsets (CD4+ T Cells, CD8+ T Cells) Count

    One sample was collected at the screening visit and at Baseline. On dose Day 1, samples were collected at EOI and 4 hour post-SOI. On all other dosing days, samples were collected at pre-dose, EOI and 4 hour post-SOI. To obtain absolute counts for each lymphocyte subset (CD4+ T cells, CD8+ T cells) the proportion of total lymphocytes constituting that subset was multiplied by the total count for the same participant at the same time point. The data was collected on Baseline, Days 1 to 8, Days 14, 21, 28, Weeks 6, 8, 10, 12, Months 4, 5, 6, 12, 24, 36 and 48. However data for Days 8 and 28 is presented.

    Measured: Day 8 and 28

  6. Mean CD4+/CD8+ Ratio

    One sample was collected at the screening visit and at Baseline. On dose Day 1, samples were collected at EOI and 4 hour post-SOI. On all other dosing days, samples were collected at pre-dose, EOI and 4 hour post-SOI. CD4+/CD8+ ratio was determined by dividing the absolute count of CD4+ T cells by the absolute count of CD8+ T cells for the same participant at the same time point. The data was collected on Baseline, Days 1 to 8, Days 14, 21, 28, Weeks 6, 8, 10, 12, Months 4, 5, 6, 12, 24, 36 and 48. However data for Days 8 and 28 is presented.

    Measured: Day 8 and 28

  7. Percent Lymphocytes Subsets (CD25+CD8+Tregs) Count

    One sample was collected at the screening visit and at Baseline. On dose Day 1, samples were collected at EOI and 4 hour post-SOI. On all other dosing days, samples were collected at pre-dose, EOI and 4 hour post-SOI. The data was collected on Baseline, Days 1 to 8, Days 14, 21, 28, Weeks 6, 8, 10, 12, Months 4, 5, 6, 12, 24, 36 and 48. However data for Days 8 and 28 is presented.

    Measured: Day 8 and 28

  8. Amounts of Cell-bound Otelixizumab on CD4+ and CD8+ T Cells

    Samples were planned to analyze at the screening visit and at Baseline. Further on dose Day 1, at EOI and 4 hour post-SOI. On all other dosing days, at pre-dose, EOI and 4 hour post-SOI up to 48 months.

    Measured: At the screening visit and at Baseline. On dose Day 1, at EOI and 4 hour post-SOI. On all other dosing days, at pre-dose, EOI and 4 hour post-SOI up to 48 months.

  9. Saturation of CD4+ and CD8+ T Cells With Otelixizumab

    Samples were planned to analyze at the screening visit and at Baseline. Further on dose Day 1, at EOI and 4 hour post-SOI. On all other dosing days, at pre-dose, EOI and 4 hour post-SOI up to 48 months.

    Measured: At the screening visit and at Baseline. On dose Day 1, at EOI and 4 hour post-SOI. On all other dosing days, at pre-dose, EOI and 4 hour post-SOI up to 48 months.

  10. CD3/TCR Complexes on CD4+ and CD8+ T Cells

    Samples were planned to analyze at the Screen visit and at Baseline. Further on dose Day 1, at EOI and 4 hour post-SOI. On all other dosing days, at pre-dose, EOI and 4 hour post-SOI up to 48 months.

    Measured: At the Screen visit and at Baseline. On dose Day 1, at EOI and 4 hour post-SOI. On all other dosing days, at pre-dose, EOI and 4 hour post-SOI up to 48 months.

  11. Number of Participants With Detectable Anti-otelixizumab Antiglobulin Response

    Anti-otelixizumab antibody levels were determined by ELISA. Immunogenicity data was not collected for Cohort 5 (5 day dosing) participants.

    Measured: Up to Month 48

  12. Number of Participants With Use of Analgesics, Antihistamines and IV Hydration as Concomitant Medication During Dosing Days

    Ibuprofen (analgesic) was given orally as follows: 400-800 mg 2 hour before SOI, 400-800 mg 2 hour after SOI, 400-800 mg 6 hour after SOI, and 400-800 mg at bedtime. If ibuprofen was contraindicated, acetaminophen was used in place of ibuprofen. Acetaminophen doses were adjusted so as it did not exceed 1000 mg per 6 hour or 4000 mg per day. A non-sedating antihistamine (cetirizine) was administered approximately 1 hour prior to each infusion of study drug. The recommended initial dose of cetirizine was 5 mg or 10 mg per day in adults and children aged 12 years and older. Normal saline solution was administered IV as needed to maintain hydration.

    Measured: Up to Day 8

  13. Change From Baseline in Percent Glycosylated Hemoglobin (HbA1c)

    Participants were seen weekly during the first 4 weeks post-dose and then every other week through Week 12. After Week 12, visits occurred every 1 to 3 months through Month 18, which completes the Core Study up to Month 48 (follow up). Day 1 pre-dose value was considered as Baseline value. Change from Baseline was post-Baseline value minus Baseline value.

    Measured: Baseline and up to Month 48

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Mar 2007 (estimated)
  2. Study start31 Jul 2006
  3. Primary completion1 Dec 2011
  4. Study completion1 Dec 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
88 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00451321
Sponsor's protocol ID
115493
Other IDs
TRX4005
Acronym
TTEDD
Status last verified
Oct 2017
First submitted
21 Mar 2007
Last updated
13 Nov 2017
Data monitoring committee
No
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Publications

  • Keymeulen B, Vandemeulebroucke E, Ziegler AG, Mathieu C, Kaufman L, Hale G, Gorus F, Goldman M, Walter M, Candon S, Schandene L, Crenier L, De Block C, Seigneurin JM, De Pauw P, Pierard D, Weets I, Rebello P, Bird P, Berrie E, Frewin M, Waldmann H, Bach JF, Pipeleers D, Chatenoud L. Insulin needs after CD3-antibody therapy in new-onset type 1 diabetes. N Engl J Med. 2005 Jun 23;352(25):2598-608. doi: 10.1056/NEJMoa043980.

    PubMed 15972866

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Otelixizumab in people with Diabetes Mellitus, Type 1, run by GlaxoSmithKline at 17 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 13 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 17 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Nov 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Any Adverse Events (AEs) and Serious Adverse Events (SAEs) (time frame: Up to Month 24). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00451321, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Nov 2017; AzTrials last refreshed its copy on 7 Nov 2026.

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