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Division of Bacterial, Parasitic and Allergenic Products OVRR/CBER/FDA

Division of Bacterial, Parasitic and Allergenic Products OVRR/CBER/FDA. Laboratory Mission and Functions. Assure Safe and Effective Products for Immunological Control of Bacterial, Parasitic and Allergenic Agents Affecting Human Health. Research Review Post-licensure surveillance

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Division of Bacterial, Parasitic and Allergenic Products OVRR/CBER/FDA

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  1. Division of Bacterial, Parasitic and Allergenic ProductsOVRR/CBER/FDA

  2. Laboratory Mission and Functions Assure Safe and Effective Products for Immunological Control of Bacterial, Parasitic and Allergenic Agents Affecting Human Health • Research • Review • Post-licensure surveillance • Inspection/compliance • Lot release testing/protocol review • Label/promotional activity review • Consultations with outside organizations

  3. DBPAP Role in Regulatory Review and Approval Pre-IND IND License • Meeting with • sponsors to • provide guid- • ance • Rev. of orig. • Submission & • all subsequent • ammendments • Tech. Advice for • product and • assay development • Rev. product manf. • data & determin- • ation of prod. specs. • Meet with sponsors • Present prod. To • Advisory Comm. • Meet with spon- • sors • Eval. Assays to • measure clinical • response to prod. • Eval. product • characterization • methods & assays • Rev. of final prod. • manuf. process, in- • cluding in process • & final product specs. • Est. lot release protocols • for CBER product • release • Conduct pre-approval • inspection of the • facility

  4. DBPAP Role in Regulatory Review and Approval Pre-IND IND License Post Licensure • Review of Biological Deviation • reports from industry • Participation in biannual • inspections of licensed products • Review of post approval • commitments • Review of subsequent supplements • for changes to maufacture or • additional indications • Meet with sponsors

  5. Respiratory Pathogens Streptococcus pneumoniae Mycobacterium tuberculosis Pseudomonas aeruginosa Neisseria meningitidis A,B,C Group B Streptococci Bordetella pertussis Chlamydia pneumoniae Corynbacterium diphtheriae Non-typeable H. influenzae Moraxella catarrhalis Sexually Transmitted Pathogens Neisseria gonorrheae Chlamydia trachomatis Pathogens Encountered by Penetrating Inoculation Borrelia burgdorfi Plasmodium species Leishmania species Clostridium tetani Staphylococcus aureus Schistosoma species Trypanosoma cruzi Special Pathogens (BT) Bacillus anthracis Clostridium botulinum Franciscella tularensis Yersinia pestis New or Improved Products Possible in the Next Ten Years

  6. Diarrhea-Causing Pathogens Enterotoxigenic E. coli Shigella species Vibrio cholerae Campylobacter jejuni Other Mucosally-Trafficking Pathogens Clostridium difficile Salmonella typhi Mycobacterium leprae Helicobacter pylori STEC and EPEC Allergenic Antigens Latex Cockroach Short ragweed Skin Test Antigens PPD Coccoidian Leishmania New or Improved Products Possible in the Next Ten Years

  7. Division of Bacterial, Parasitic and Allergenic Products (DBPAP) Laboratory of Respiratory and Special Pathogens Drusilla Burns, Ph.D.-Chief Laboratory of Immunobiochemistry Jay Slater, M.D.-Chief Immediate Office of the Director Richard Walker, Ph.D.-Director Deputy Director Regulatory Staff Administrative Staff Laboratory of Bacterial Toxins Willie Vann, Ph.D.-Chief Laboratory of Biophysics Richard Pastor, Ph.D.-Chief Laboratory of Mycobacterial Diseases and Cellular Immunology Sheldon Morris, Ph.D.-Chief Laboratory of Enteric and Sexually Transmitted Diseases Dennis Kopecko, Ph.D.-Chief Laboratory of Methods Development and Quality Control Bruce Meade, Ph.D.-Chief Laboratory of Bacterial Polysaccharides Carl Frasch, Ph.D.-Chief

  8. DBPAP Program Focus Areas • Standardization of Assay Methods for Bacterial, Parasitic and Allergenic Substances • LMDQC, LB, LIB, LP, LESTD, LBT, LRSP, LMDCI • Pertussis and Other Toxin-Mediated Diseases • LMDQC, LB, LBT, LRSP • Mycobacterial and Other Intracellular parasites • LMDCI • Mucosal Pathogenesis and Immunization • LESTD • Allergenic Products and Allergenic Diseases • LB, LIB • Products to Combat Bioterrorism Agents • LMDQC, LB, LESTD, LBT, LRSP, LMDCI

  9. Laboratory of Methods Development and Quality Control Areas of Research • Develop, standardize, and evaluate quality control methods for bacterial vaccines • Develop, evaluate, and apply serological methods to measure immune response in vaccine trials • Coordinate quality assurance activities within DBPAP and provide leadership in initiative to accredit CBER quality control testing laboratories • Recent Milestones • Developed QC methods incorporated into WHO • acellular pertussis vaccines guidelines • Leader effort to standardize pertussis immunoassays • 9 publications evaluating safety and immunogenicity • of acellular pertussis vaccines

  10. Laboratory of Bacterial Polysaccharides Areas of Research • Characterization of immune responses to polysaccharide and conjugate vaccines • Standardization of methods for relevant clinical application • Development of novel physical and chemical methods for improved evaluation of licensed and experimental vaccines • Characterization of innovative approaches to vaccine development, and evaluation of epidemiologic aspects of vaccine candidates • Recent Milestones • Licensure of pneumococcal conjugate vaccine • Genetic typing method for gonococcal epidemiology • Discovered conjugation modifies epitopes in • polysaccharide vaccine conjugates

  11. Laboratory of Biophysics Areas of Research • Characterization of biopolymers (polysaccharides, proteins DNA) and macromolecular assemblies (vaccine/adjuvant complexes, membranes, micelles). • High-end instrumentation, including NMR, light scattering, mass spec. • Computer simulation methods for molecular modeling and analysis of complex data. • Recent Milestones • Simulation of aquaporin in membrane • NMR based 3-D structure determination of carbohydrates and of peptides in micelles • Synthesis of multiple antigen peptide (MAP)

  12. Laboratory of Respiratory and Special Pathogens Areas of Research • Structure/Function Studies of Toxins • Regulation of Virulence Factors of B. pertussis and B. anthracis • Animal Models of B. pertussis Infection • Recent Milestones • Led the effort to license acellular • pertussis vaccines

  13. Laboratory of Bacterial Toxins Areas of Research • Characterization of Tetanus Toxin Structure and Function • Characterization of Iron-Related Virulence Determinants in C. diphtheriae and B. anthracis • Biosynthesis of bacterial polysaccharides: polysialic acids of E. coli and hyaluronic acid of B. anthracis • Recent Milestones • Licensure of Botulinum type B for cervical dystonia • Discovery of Heme oxygenase in C. diphtheriae

  14. The Laboratory of Mycobacterial Diseases and Cellular Immunology Areas of Research • Evaluation of protective immune responses to intracellular bacteria • Assessment of DNA vaccination strategies against tuberculosis • Characterization of a unique family of tuberculosis proteins • Recent Milestones • Licensure of the Lyme Vaccine • Development of an effective combination • TB DNA vaccine

  15. Laboratory of Enterics and Sexually Transmitted Diseases Areas of Research Invasion mechanisms of enteric bacterial pathogens Genetic regulation of bacterial virulence genes Hormonal effects on gonococcal pathogenesis Mucosal immunity, dosing and adjuvants Anthrax - Genetic analysis and development of live attenuated Salmonella-vectored vaccines • Recent Milestones • Defined host and bacterial requirements • Novel MT-dependent C. jejuni invasion system • Defined DNA sites and transcriptional activator residues involved in virulence gene regulation

  16. Laboratory of Immunobiochemistry Areas of Research • Allergen structure and function • Immunomodulation of allergic responses • Chemokines and chemokine receptors in the modulation of immune responses Recent Milestones • Development of a provisional US standard for latex • Isolation and characterization of latex allergen Hev b 5 • Grass pollen allergen extract standardization • Re-validation of competition ELISA to determine • potency of grass & mite allergen extracts • Statistical basis for assignment of release limits • for standardized allergens • Criteria for prioritization of allergens for standardization

  17. Bioterrorism Program • Research/Reviewfor: • B. anthracis • F. tularensis • Y. pestis • Botulinum toxin • Research Areas: • Genetic manipulation and regulation • Virulence factors • Vaccine improvement • Immunologic assay standardization Cutaneous anthrax infection

  18. Challenges and Realities Facing Researcher/Reviewers • Funding levels uncertain from year to year; dependent upon appropriation process • Bureaucratic hurdles • Timing of workload determined by sponsor submissions, not by CBER

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