Pretreatment Anti-Therapeutic Antibodies (PATA) in Patients Treated With hu14.18K322A Antibody
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|ClinicalTrials.gov Identifier: NCT02159443|
Recruitment Status : Completed
First Posted : June 10, 2014
Last Update Posted : November 5, 2020
Hu14.18K322A is a monoclonal antibody developed at St. Jude Children's Research Hospital (SJCRH) that is made to bind to cancer cells that have a molecule called GD2 on their surface. Sometimes the human body will make an antibody to the therapeutic antibody (like hu14.18K322A) that is being given for treatment. These are called human anti-human antibodies (HAHA). When testing for HAHA in a previous cohort of patients who received hu14.18K322A, it was found that some patients tested positive for high levels of an antibody before receiving hu14.18K322A or any other anti-GD2 antibody. In this study, investigators would like to know more about the nature of this pretreatment antibody, how often is it present, and if in the laboratory it increases the killing of tumor cells.
- To determine whether pretreatment anti-therapeutic antibodies (PATA) represent antibodies reactive against an epitope (allotypic determinant) found on the anti-GD2 antibody hu14.18K322A
- To determine if PATA increases the anti-tumor efficacy of anti-GD2 antibodies in vitro
|Condition or disease|
|Ewing Family of Tumors Melanoma Neuroblastoma Osteosarcoma|
In the proposed study, investigators will seek to determine the nature of this antibody that is being detected in the HAHA test for this group of patients, and if, in the laboratory, it increases the killing of tumor cells, accounting for the observation that some the patients who tested positive may have an improved outcome.
The study will analyze DNA from blood samples of SJCRH patients treated with hu14.18K322A anti-GD2 antibody. Serological studies and confirmatory genotyping studies will be performed in a laboratory at the University of Wisconsin.
|Study Type :||Observational|
|Actual Enrollment :||76 participants|
|Official Title:||Characterization of Pretreatment Anti-Therapeutic Antibodies (PATA) in Patients Treated With hu14.18K322A Antibody|
|Actual Study Start Date :||July 15, 2014|
|Actual Primary Completion Date :||October 22, 2019|
|Actual Study Completion Date :||April 24, 2020|
Those who meet eligibility criteria and consent to participate in the study.
- Characterization of PATA [ Time Frame: Once at participant enrollment ]Objective: To determine whether pretreatment anti-therapeutic antibodies (PATA) represent antibodies reactive against an epitope (allotypic determinant) found on the anti-GD2 antibody hu14.18K322A
- Number of samples with increased anti-tumor efficacy [ Time Frame: Once, at enrollment ]Objective: To determine if PATA increases the anti-tumor efficacy of anti-GD2 antibodies in vitro
Biospecimen Retention: Samples With DNA
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): NCT02159443
|United States, Tennessee|
|St. Jude Children's Research Hospital|
|Memphis, Tennessee, United States, 38105|
|Principal Investigator:||Victor Santana, MD||St. Jude Children's Research Hospital|