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| Content Provider | PubMed Central |
|---|---|
| Author | Bautista, Ami C. Hossein, Salimi-moosavi Vibha, Jawa |
| Abstract | Immunogenicity testing during early biotherapeutic development is usually limited by resources needed for assay development, validation, and the necessity for unique product-specific controls and reagents. We describe a unique immunoassay [universal indirect species-specific assay (UNISA)] that can be applied during early phase preclinical studies to support pharmacology, pharmacokinetics (PK), and toxicology evaluation during biotherapeutic antibody candidate assessment. UNISA was evaluated across three animal species: mouse, rat, and cynomolgus monkey. For each species, a unique and specific antibody pair was generated consisting of the secondary antibody and the positive control. The secondary antibody is specific for species anti-IgG antibody while demonstrating no cross-reactivity to human antibody-based biotherapeutics. The positive control is comprised of a species-specific anti-human IgG antibody clone specific for binding to the CH2 domain of all human IgG subtypes. Applications of this platform included: (a) identifying the dose with the least immunogenicity risk; (b) characterizing the impact of immunogenicity on PK exposure profiles across multiple antibody candidates and dose regimens; and (c) characterizing the immune response specificity to the idiotype or non-idiotypic region of the biotherapeutic candidate. Due to its use of universal species-specific reagents, UNISA can overcome resource constraints and avoid extensive validation and development time to support immunogenicity testing during the early research and preclinical phase of programs. Enhanced understanding of the impact of the immunogenicity on biotherapeutic exposure and target-related immunomodulatory effects have been made possible with the use of this assay. |
| Related Links | http://dx.doi.org/10.1208/s12248-012-9403-0 |
| Ending Page | 849 |
| Page Count | 7 |
| Starting Page | 843 |
| File Format | |
| ISSN | 15507416 |
| e-ISSN | 15507416 |
| Journal | The AAPS Journal |
| Issue Number | 4 |
| Volume Number | 14 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2012-12-01 |
| Access Restriction | Open |
| Rights Holder | Springer US |
| Subject Keyword | Pharmaceutical Science Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pharmaceutical Science |
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