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NAVIGATING THE FDA

NAVIGATING THE FDA. Vivian K. Dullien, PhD FDA, Clinical and Business Consultant Dullien Associates, LLC Boulder, Colorado. Meet with FDA early in process and keep in touch. Before you meet, do your homework. What are you? Diagnostic Device Drug Biologic Combination.

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NAVIGATING THE FDA

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  1. NAVIGATING THE FDA Vivian K. Dullien, PhD FDA, Clinical and Business Consultant Dullien Associates, LLC Boulder, Colorado

  2. Meet with FDA early in process and keep in touch. NAVIGATING THE FDA Vivian K. Dullien, PhD

  3. Before you meet, do your homework. NAVIGATING THE FDA Vivian K. Dullien, PhD

  4. What are you? • Diagnostic • Device • Drug • Biologic • Combination NAVIGATING THE FDA Vivian K. Dullien, PhD

  5. What disease? NAVIGATING THE FDA Vivian K. Dullien, PhD

  6. What for? • Screening? • Diagnosing? • Monitoring? • Treating? NAVIGATING THE FDA Vivian K. Dullien, PhD

  7. What patient population? • Screen general population • Treat general population • Symptomatic • High risk • Early stage • Late stage • Age group NAVIGATING THE FDA Vivian K. Dullien, PhD

  8. If device or diagnostic, is there a predicate? Comparison to predicate – where similar, where not NAVIGATING THE FDA Vivian K. Dullien, PhD

  9. Devices: 510(k) or PMA? • Determine: • Risk level • Novelty • Predicate • Duration: • 510(k): 30+ days • PMA: 1 year NAVIGATING THE FDA Vivian K. Dullien, PhD

  10. Drug or device? • The driver in the FDA process – “Indications for Use” • Part of product label NAVIGATING THE FDA Vivian K. Dullien, PhD

  11. Examples of Indication for Use Drug: Nasal spray, 50 mcg is indicated for the treatment of the nasal symptoms of seasonal allergic and perennial allergic rhinitis in adults and pediatric patients 2 years of age or older. “X” nasal spray, 50 mcg is indicated for the prophylaxis of nasal symptoms of seasonal allergic rhinitis in adult and adolescent patients 12 years and older. Diagnostic: “X” culture test is a qualitative in-vitro diagnostic test for the rapid detection of nasal colonization of staphylococcus aureus. The test is intended to aid in the prevention and control of staphylococcus aureus infections in healthcare settings. The test is not intended to diagnose staphylococcus aureus infections, nor monitor treatment of infection. NAVIGATING THE FDA Vivian K. Dullien, PhD

  12. Product label can include: • Description (clinical pharmacology) • Clinical studies summary • Indication and usage • Warnings • Precautions • Adverse reactions • Contra indications • Dosage and administration • Information for patients NAVIGATING THE FDA Vivian K. Dullien, PhD

  13. Your FDA studies are to support the claims in your “Indications for Use” NAVIGATING THE FDA Vivian K. Dullien, PhD

  14. “Indications for Use” Will determine what you can say in marketing material once you have been approved NAVIGATING THE FDA Vivian K. Dullien, PhD

  15. Study endpoints • How will you measure your safety and efficacy? • If device – agreement to predicate – what is your predicate? • What is the gold standard? • Are you an AID in diagnosing/treating or stand-alone? NAVIGATING THE FDA Vivian K. Dullien, PhD

  16. Study endpoints: statistician’s inputs • Study power • N size • Methods to measure statistical significance NAVIGATING THE FDA Vivian K. Dullien, PhD

  17. Survey the market • Review similar products on the market • Look at labels, Indications for Use, warnings and limitations NAVIGATING THE FDA Vivian K. Dullien, PhD

  18. Ready to approach FDA • Phone, e-mail • Set up a face-to-face meeting: pre-IDE or pre-IND • Send in information before meeting • Include: product description, predicate comparison if applicable, suggestion on how to be classified, indications for use, protocol outline with study endpoints, suggest N size. If drug results of animal study safety, pilot/lab, feasibility results, statistical methods to be used • List of questions for FDA • Who will attend NAVIGATING THE FDA Vivian K. Dullien, PhD

  19. FDA - organizational • On Internet (http://www.fda.gov/opacom/7org.html) • Office of the Commissioner: 301-796-5000 • Biologics: 301-827-0372 • Devices and Radiological Health: 240-276-3939 • Drug Evaluation: 301-796-5400 • Veterinary Medicine: 240- 276-9000 • Regulatory Affairs: 301-827-3101 • Food Safety and Applied Nutrition: 301-436-1600 NAVIGATING THE FDA Vivian K. Dullien, PhD

  20. FDA meeting & post-meeting process • Get FDA feedback and take minutes • Send minutes to FDA for review • Incorporate FDA suggestions into your planned studies • Send protocol to FDA for review and comments before you start NAVIGATING THE FDA Vivian K. Dullien, PhD

  21. Clinical devices: • Investigation device exemption (IDE), unless exempt • Need: • Protocol approved by IRB. If significant risk, the IDE must be approved by FDA • Informed consent from patient • Labeling for investigational use only • Required records and reports • Conduct under GCP (21 CFR 812, 50, 56, 54, 820) NAVIGATING THE FDA Vivian K. Dullien, PhD

  22. IDE includes: • Device name and description • Device intended use • Sponsor contact information • Manufacturer information • Laboratory studies • Reports of animal studies • Prior publications • Investigational plan, including protocol, risk analysis, monitoring procedures, list of investigators, IRB’s, informed consents • Labeling • Description of methods, facilities and controls used for manufacture, processing, packing, storage, installation of device NAVIGATING THE FDA Vivian K. Dullien, PhD

  23. IDE exempt: • Non-invasive • Does not require invasive sampling that presents significant risk • Does not introduce energy into a subject • Is not used as a diagnostic procedure, without confirmation of another medically established product or procedure NAVIGATING THE FDA Vivian K. Dullien, PhD

  24. Phases of device studies • Feasibility • Pivotal • 510(k) • PMA NAVIGATING THE FDA Vivian K. Dullien, PhD

  25. Pre-IDE process • Informal guidance meeting (before IDE submitted): help with development of protocol, supporting pre-clinical data. Can be telephone conference calls, video conference, or face-to-face • Formal guidance meeting: determination meeting – written request to review intended use, protocol, and type of valid scientific evidence required. A pre-IDE submission • Agreement meeting – written request to reach agreement with FDA regarding FDA’s review of the clinical protocol and investigational plan NAVIGATING THE FDA Vivian K. Dullien, PhD

  26. Agreement meeting written request: • Detailed description of device • Detailed description of proposed conditions of use of device • Proposed plan (including clinical protocol) • Information regarding expected performance • Agreement put in writing • Keep in contact with FDA throughout process from informal to formal agreement meetings NAVIGATING THE FDA Vivian K. Dullien, PhD

  27. Additional guidances can be found: • Early collaboration meetings • Goals and initiatives for the IDE program • Pre-IDE program: “Issues and Answers” • Search Internet and find guidances. • FDA has put guidances on the Internet for devices and drugs NAVIGATING THE FDA Vivian K. Dullien, PhD

  28. Drug review steps Pre-IND, animal testing IND – outlines human testing. Meet with FDA before submitting IND. IND reviewed by FDA and IRB Phase 1: 20-80 subjects Phase 2: 12-300 subjects Phase 3: several hundred to 3000. Meet with FDA before Phase 3 Pre-NDA, meet with FDA before submitting NDA Submit NDA Review Facilities inspected Approvable or not approvable NAVIGATING THE FDA Vivian K. Dullien, PhD

  29. Pre-clinical testing in animals • Assessing toxicity in single doses of increasing strength, 2+ species • Different routes of administration • Determine ED50, LD50, duration of effects • Subjects autopsied for cause of death • Sub-acute toxicity • 3 or more routes of administration • 3 different dose levels, 2+ species, observed 2 – 12 weeks • Estimate what human dosages will be • Especially note liver, kidneys and nervous system • Chronic toxicity • 3 – 24 months • At least 6 months before human studies • Carcinogenic effects, 6 months, 2+ species, same route of administration as humans • Teratogenic effects NAVIGATING THE FDA Vivian K. Dullien, PhD

  30. IND contents include: • Pre-clinical toxicology and pharmacology results • Phase 1 protocols • Drug facilities, processes, articles used in manufacturing, processing, packaging, and storing drugs for humans • Chemistry, manufacturing and control information • Previous experience with human subjects NAVIGATING THE FDA Vivian K. Dullien, PhD

  31. Drug clinical stages • Phase 1 - healthy volunteers • - Side effects, how drug is metabolized and excreted • - Safety • Phase 2 - Patients • - Safety • - Effectiveness – preliminary information if drug works in humans with the disease • Phase 3 - large safety and efficacy studies • - different dosages, drug combinations and populations NAVIGATING THE FDA Vivian K. Dullien, PhD

  32. Timelines – clinical testing of drugs • Range: 2 – 10 years (average 5 – 7 years) • Phase 1 1 + years • Phase 2 2 + years • Phase 3 3 + years • NDA usually 100,000 pages in length, takes at least 6 months to review. Average 2 years (range 2 months to 7 years.) NAVIGATING THE FDA Vivian K. Dullien, PhD

  33. Quality of clinical data • IRB approval, informed consent • Study conducted according to protocol • adverse events recorded • subsets met the inclusion/exclusion criteria NAVIGATING THE FDA Vivian K. Dullien, PhD

  34. Reviewing applications for drug or device • FDA review team - medical doctors, chemists, statisticians, microbiologists, pharmacologists and other • experts • -determine if drug/device is • safe and effective for its • proposed use • Each reviewer prepares written evaluations that are considered by team leaders, division directors, office directors, depending on type of application • Sometimes FDA calls upon advisory committees NAVIGATING THE FDA Vivian K. Dullien, PhD

  35. Issues that can arise • Clinical data not supportive of indications for use – need more data • Inadequacy on how people respond to various dosages – need more data • “Approvable” – probably be approved, provided certain issues get resolved • Labeling • Safety issues • Manufacturing issues – can delay or deny application. Product that is going to be marketed is the same product that was tested • Depending on FDA action – meet to discuss deficiencies, ask for hearing, correct deficiencies, submit new information or withdraw application NAVIGATING THE FDA Vivian K. Dullien, PhD

  36. Device or drug • Continuous interaction between FDA and company during review process NAVIGATING THE FDA Vivian K. Dullien, PhD

  37. It all comes down to this: • The package insert NAVIGATING THE FDA Vivian K. Dullien, PhD

  38. Thank you! • Vivian K. Dullien, Ph.D. • Dullien Associates, LLC • DullienV@comcast.net • (303) 499-6777 NAVIGATING THE FDA Vivian K. Dullien, PhD

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