Lecture 2
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what are the 3 major organizational functions
-research and development -manifacturing -commercial
what is in research and development
-discovery -development (clinical development/product development)
what is in manifacturing
-clinical studies and clinical trial supplies -marketed products
whats in commercial
-product launch -product marketing -sales
pharma goals
Devoted to inventing medicines that allow patients to liver longer, healthier and more productive lives
development of new pharmaceutical products is driven by what
• Unmet medical needs and health economics (eg new HCV drugs vs liver transplant) • Projected market demographics (e.g. an aging population; evolving health of population) • Evolving disease profiles (e.g. addressing chronic conditions)
what are the business needs for development of new pharmaceutical
• Addressing competitive environment • Shareholder value • Growing the business • Maximizing market share, sales, profits, and ROI
what occupies 50% of healthcare costs in the us
-hospitals and physicians and clinics
Major pharmaceutical companies mainly focus on these therapeutic areas:
o Cancer/Oncology o Cardiovascular Diseases o CNS Disorders o Psychological Disorders o Prophylactic Vaccines o Gastrointestinal Disorders o Respiratory Disease o Blood Disorders o Dermatological Disorders o Diabetes & Obesity/Metabolic Disorders o Infectious Diseases/AIDS
The key steps in the Discovery of a small molecule:
-target id -target validation -assays and lead ID -lead optimazation -candiate selection -pre-clinical profiling -development candidate/ NME
what is in target id
• Basic Research • Knowledge • Bioinformatics • Genetic Links • Biochemistry • Pathways
what is in target validation
• Target Disease Link • Reverse Genetics • Animal Kock out • Animal Data • Health Databases
what os in assays and lead id
• Binding Assays • Enzyme Assays • Cell-based Assays • Compound Library Screens • Hit ID • De novo design • Animal models/ • In vivo pharmacology assay development
what is in lead optimazation
• Small molecule: • Med chem • Structure Activity Relationship • (SAR) • QSAR • Modelling docking • PK – pharmacokinetics • ADME –adsorption, distribution, metabolism • In vitro ADME • In vivo ADME
what is in candidate selection
• Patent applications • Target potency and exposure requirements • Free-drug levels • Pre-clinical general and safety pharmacology • NOAEL (no adverse effect level) targets • Cross-species PK • PK scaling: Human dose and exposure levels • Back-up candidate defined • TPP – target product profile drafted
what is in pre-clinical profiling
• Scale-up process • Pre-formulation studies • GLP Toxicity testing – rodent and non-rodent species • TPP – finalized • Research, Medical and Marketing Agree to develop
what is in development candidate
• IND – investigational new drug filing with FDA • Major Investment Decision • Product Development Team assumes responsibility
The key steps in the Development of a drug candidate:
-development team -phase 1 clinic -phase 2 clinic -phase 3 clinic -new drug app/nda/bla -post market monitoring
what is in develop team
• Medical, Marketing, Research, Patents • Long term animal toxicology – reprotox; carcinogenicity • CMC – chemistry manufacture and control - GMP • Scale-up process • Pharmaceutics/ Formulation • Clinical PK/ pharmacology • Statistics • Safety/ Pharmacovigilance • Clinical Development Plan: Trial protocols – GCP
what is in Phase 1 clinic
• Small number of subjects • Single dose escalation healthy human volunteers • Single Dose PK • Human PK • Multiple ascending dose PK • Confirm safety and human PK • Drug – Drug Interactions studies
what is in phase 2 clinic
• Small to medium number of patients (~50-100) • Multiple Ascending Dose • Safety and PK in patient population • Assess treatment durations • Effect (PD) in patients • Assess clinical biomarkers • Establish dose and duration for testing in phase III
what is in phase 3 clinic
• RCT- randomized controlled clinical trial • In large number of patients • Blinded studies • Registrational trials • Two trials confirm efficacy and safety relative to comparator (placebo or existing treatment) • Establish superiority or non-inferiority to comparator
what is in new drug app
• NDA – New Drug application • BLA – Biologics Licensing application • Drug supply complete • FDA review (1-2 years!) and approval • Drug registration • Submission in other jurisdictions
what is in post market monitoring
• Lon-term Side effects • FDA Adverse Event Reporting System (FAERS) • Phase IV studies – special populations • Post marketing commitments • Pediatric Studies