The Effect of Anti-CεmX on IgE Production
h4B12PBMC
The Effect of Humanized Anti-CεmX Antibody (h4B12) on IgE Production in the PBMC Isolated From Atopic Dermatitis Patients
1 other identifier
observational
52
1 country
1
Brief Summary
Despite the success of Omalizumab that neutralizes free IgE in blood and interstitial fluids, treatment of many allergic disorders remains an unmet medical need. Omalizumab was approved for patients having serum IgE levels in the range of 30-700 IU/ml. Omalizumab may not be effective for patients with much higher serum IgE levels, such as those with atopic dermatitis. Therefore, an alternative approach that targets IgE-committed B cells directly and inhibits the synthesis of IgE without binding to free IgE will be attractive. Anti-CεmX mAb, developed by Dr. TW Chang in Academia Sinica, binds human mIgE+ cells, including IgE-committed lymphoblasts and memory B cells. Such anti-CεmX mAbs should be able to activate B cell receptor (BCR) signaling, which leads to anergy or apoptosis of mIgE+ B lymphoblasts, and induces ADCC through their Fc portion. Depletion of mIgE+ B cells by anti-CεmX treatment would inhibit the formation of IgE-producing plasma cells, resulting in a long-term attenuation of IgE synthesis that would eventually lead to a desensitized state in allergic patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Feb 2012
Shorter than P25 for all trials
1 active site
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
February 1, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2012
CompletedFirst Submitted
Initial submission to the registry
November 21, 2013
CompletedFirst Posted
Study publicly available on registry
November 27, 2013
CompletedNovember 27, 2013
November 1, 2013
4 months
November 21, 2013
November 26, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
IgE
mesure IgE production in PBMC culture supernatant
Day 14
Eligibility Criteria
patients of atopic dermatisis
You may qualify if:
- Male and female subjects aged ≥ 18 years
- Clinical diagnosis of atopic dermatitis or chronic urticaria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Taiwan University Hospital
Taipei, Taiwan, 100, Taiwan
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Chia-Yu Chu, M.D., Ph.D.
Dept of Dermatology, NTUH
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 21, 2013
First Posted
November 27, 2013
Study Start
February 1, 2012
Primary Completion
June 1, 2012
Study Completion
August 1, 2012
Last Updated
November 27, 2013
Record last verified: 2013-11