Drug Evaluation Flashcards
Role of federal government in prescriptions
control what drugs can be prescribed/sold, regulates evaluation of new drugs (safety/efficacy), equivalency for generics, classification as prescription vs OTC
State role in prescriptions
control over who can prescribe drugs–need license through state
Local role in prescriptions
can regulate certain drugs in their jurisdiction (medical marijuana)
Length of clinical trials
2-10 years Preclinical (5-8) Phase (1-2) Phase II (2) Phase III (3) Phase IV (ongoing)
Subjects in Clinical trials
Preclinical - animals
Phase I- healthy (M)/18-24 yo (20-100 ppl)
Phase II- 100-300 pts with targeted disease
Phase III 1000-3000 pts in clinical setting
Purpose of Each Phase of Clinical trials
Preclinical- determine safe dosage for humans (carcinogenic? effect on reproductive performance?
Phase I- gather Pharmacokinetic data; see if safe in humans
Phase II - evaluate safety/efficacy; final dosing/regimen adjustments
Phase III - measure efficacy vs std therapy/monitor adverse reactions for chronic use
Phase IV - collect data on morbidity/mortality, safety, increased risk groups, adverse effects
Dietary Supplement
vitamins, minerals, amino acids, herbs intended to supplement diet
Label requirements for dietary supplements
name of product, net quantity of contents, manufacturer info, directions for use
Pharmaceutical equivalence
same drug formulation (active ingredients, dosage formulation, route of admin, strength/concentration)
Pharmaceutical alternative
same therapeutic moiety but different salts, esters/complexes of moiety and different dosage forms/strengths
Bioequivalence
dependent on rate and extent active ingredient is absorbed from formulation and becomes available in plasma
Bioavailability
(F) amount of drug that gets into plasma; represented by area under the curve in plasma concentration vs time curve
Bioequivalence
Generic bioequivalent to brand if rate of absorption AND extent of drug absorption within 80-125% of that of brand product
Therapeutic equivalence
assumed if bioequivalence met