A Study to Assess Immune Response in Pediatric Kidney Transplant Recipients Treated With Daclizumab (Zenapax)
Immune Response to Neoantigen and Recall Antigen in Pediatric Renal Transplant Recipients Treated With the IL-2R Alfa Monoclonal Antibody, Daclizumab (Zenapax®)
1 other identifier
interventional
11
1 country
5
Brief Summary
This study will assess whether daclizumab impairs the ability of children receiving a kidney transplant to elicit a primary immune response. The anticipated time on study treatment is 1 day, and the target sample size is 82 individuals.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Apr 2003
Typical duration for phase_4
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2003
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2006
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2006
CompletedFirst Submitted
Initial submission to the registry
October 5, 2015
CompletedFirst Posted
Study publicly available on registry
October 15, 2015
CompletedResults Posted
Study results publicly available
January 13, 2016
CompletedJanuary 13, 2016
December 1, 2015
2.8 years
October 5, 2015
December 9, 2015
December 9, 2015
Conditions
Outcome Measures
Primary Outcomes (1)
Number of Participants Who Developed a Positive Antibody Response (IgG) to Keyhole Limpet Hemocyanin (KLH) Immunization
Positive antibody response was defined as at least a 2-fold increase in antibody concentration on either Day 43 or Day 57 compared with baseline where baseline was assigned a value of 1 if it was below the limit of quantification. All humoral responses were assessed by enzyme-linked immunosorbent assay (ELISA).
Baseline and Day 43 or Day 57
Secondary Outcomes (15)
Number of Participants Who Developed a Positive Cellular Response to KLH Immunization
Baseline, Day 22, Day 29, Day 43, and Day 57
Number of Participants Who Developed Both a Positive Antibody Response and a Positive Cellular Response to KLH Immunization
Baseline, Day 22, Day 29, Day 43 and Day 57
Number of Participants Who Developed a Positive Humoral Response to Tetanus Toxoid (TT)
Baseline, Day 22, Day 29, Day 43 and Day 57
Number of Participants Who Developed a Positive Cellular Response to Tetanus Toxoid (TT)
Baseline, Day 22, Day 29, Day 43 and Day 57
Number of Participants Who Developed a Positive Antibody Response to KLH and Positive Cellular Responses to Both KLH and TT Immunizations
Baseline, Day 22, Day 29, Day 43 and Day 57
- +10 more secondary outcomes
Study Arms (2)
Group A (With Daclizumab Therapy)
EXPERIMENTALParticipants who were receiving a full course of 5 doses of daclizumab (1 milligram per kilogram \[mg/kg\]) with Day 1 vaccine administered immediately prior to the fifth dose.
Group B (Post Daclizumab Therapy)
ACTIVE COMPARATORParticipants who completed a full course of daclizumab therapy in the previous 4 to 18 months.
Interventions
Diphtheria and Tetanus Toxoid (DT) will be administered intramuscularly as a 1/3 dilution (0.33 flocculation units). The participants will be rechallenged with DT 6 months after Day 29 if failed to show \>=1.5 fold increase in lymphocyte proliferative response but have a humoral response.
The fifth dose (1 milligram per kilogram \[mg/kg\]) of daclizumab will be administered in this study to participants who already received four doses (one dose at 1 mg/kg within 24 hours post-transplant and then every other week for 3 doses).
KLH will be administered intradermally with a dose of 250 mcg for participants aged 2 to less than 12 years, and 500 mcg for participants aged 12 to 19 years. The participants will be rechallenged with KLH 6 months after Day 29 if failed to show specified increase in lymphocyte proliferative response or humoral response.
Eligibility Criteria
You may qualify if:
- Primary renal transplant recipients between 2 and 19 years of age
- Receiving or have received daclizumab in the previous 4-18 months
- Receiving or have received daclizumab less than (\<) 24 hours pretransplant and additional courses every other week
- Single organ recipients (kidney only)
- Previous vaccination with tetanus toxoid (TT) prior to transplant
- Receiving a maintenance immunosuppression regimen of a calcineurin inhibitor, mycophenolate mofetil, and prednisone (or equivalent corticosteroid)
You may not qualify if:
- Received intravenous gamma globulin or a TT vaccination since transplant
- Experienced rejection within 3 months of receiving study vaccinations and/or treated with lymphocyte preparation or methylprednisolone to reverse suspected acute rejection within 3 months of receiving study vaccinations
- Received any vaccine within 30 days of receiving study vaccinations
- Received plasmapheresis treatment or growth hormone treatment since transplant
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
Unknown Facility
Los Angeles, California, 90027-6062, United States
Unknown Facility
Los Angeles, California, 90095-1752, United States
Unknown Facility
Indianapolis, Indiana, 46202, United States
Unknown Facility
Kansas City, Missouri, 64108, United States
Unknown Facility
Portland, Oregon, 97201, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Roche Trial Information Hotline
- Organization
- F. Hoffmann-La Roche AG
Study Officials
- STUDY CHAIR
Clinical Trials
Hoffmann-La Roche
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 5, 2015
First Posted
October 15, 2015
Study Start
April 1, 2003
Primary Completion
January 1, 2006
Study Completion
January 1, 2006
Last Updated
January 13, 2016
Results First Posted
January 13, 2016
Record last verified: 2015-12