Efficacy Def
Degree to which action(s) produce a clinically measurable effect under ideal conditions
Effectiveness Def
Degree to which actions achieve intended health result under normal/usual circumstance
Ideal Conditions Outline
Clinical trials aren’t accurate to real life. Lower risk of non-compliance (forgetfulness, business) doesn’t consider interactions/demographics
Phase 1: New Medicine Clinical Trials
PK & PD data, dose range tolerated and Adverse event signals. Is there an immunogenic response
Phase 2: New Medicine Clinical Trials
Dosing & efficacy in target population. Can be randomised and double blind
Phase 3: New Medicine Clinical Trials
Randomised control trials, Comparative, Non-comparative (placebo controlled) and Non-inferior (evidence & efficacy eval). Ensures that results aren’t effected by other conditions (eg chance)
Phase 4: New Medicine Clinical Trials
Post marketing and RMP requirements
What are the limitations of clinical trials
Only monitors adverse events for as long as trial exists
Clinical Trials Information System (CTIS, 2023)
Digital portal for application of investigational medicinal product clinical trial by sponsor
Considerations of Trial Pre-Authorisation
Ensure trial is necessary. Not redundant, is result generation actually feasible. Can’t ask people to take unnecessary risk
Independent Ethic Committees
Safeguards rights and ethics of subjects. Minimise participant risk exposure, review protocols & procedures, monitor patient info, verifies suitability
Trial Investigator Roles & Responsibility
Person conducting study day-to-day; recruit patients/staff/resources in timeframe, ensure protocol compliance. Ensures appropriate medical care is received during/after trial and documenting subjects withdrawal
Motivator for Patients To Join Clinical Trials
Access to promising new novel or standard of care (placebo)
EMA Centralised Authorized medicine steps
R&D (EMA can compel topic), Scientific Advice (supports high quality & safe medicines), Evaluation (CHMP pre-submission guidance), authorisation, access and safety monitoring
Common Technical Document (CTD) Includes
Target Patient Group (unmet need), Medicine Quality (Physical, Chemical & Biological), GMP compliance, Pharmacology, Pharmacokinetics, Benefits & AE, post authorisation info
CHMP Evaluation Process
Compulsive for medical products with new API. Rapporteur MS appointed with a team of assessors (EMA assessment report)
3 Pillars of Medicine Eval
Safety, Efficacy and Quality
ICH Good Clinical Practice Guidelines
Ethics, risk vs trail, Participant rights, Medical Product Info, Quality Protocol, Protocol Compliance, Medical Decisions, Trial Staff, Informed Consent, Clinical Data, Confidentiality, Good Manufacturing Practice and Quality Assurance
EMA Risk Management
Identified risks, Potential risks and Information missing from study
When is liscence accelerated
Lack of alternatives
Access Steps
CHMP responsible for; quality, safety and efficacy. Liscenced Indication SmPC. MA tracks pathway to marketing with few restrctions
Health Technology Assessment
Cost vs value for money. Value derived from inervention assessed by decision makers. Health Promotions
HTA Key Principles
Clinical Issue Assessment, Cost-effectiveness, budget impact, decision maker recommendations and post imbursement