Drug development & ethical considerations Flashcards
Autonomy
Right to make decisions for yourself
-R/T research means that pts have right to refuse to participate in study & can withdraw from study at any time without penalty
Informed consent
Pt has right to be informed of:
-purpose of study
-what is expected of pt
-potential consequences of participating in study
Participation always voluntary & without coercion
Beneficence
- Quality or state of doing or producing good
- Should be goal of each research study/clinical trial
Non-maleficence
Holds that there is an obligation not to inflict harm on others
Risk-benefit ratio
- Must balance risks with anticipated benefits
- IRB determines if benefits of research studies outweigh risks
Justice
- Requires equitable distribution of benefits, risks, costs, and resources
- Fairness
Pre-clinical drug testing
- Studies done on animals or human cells outside the body
- Studies drug’s toxic effects and pharmacological effects
- May look at pharmacokinetics & genotoxicity
In vitro testing
- Performed on human cells & tissues outside the body
- Not performed on living organisms
- Part of preclinical drug testing
In vivo testing
- Performed on whole, living organisms–usually animals
- Part of preclinical drug testing
NIH Revitalization Act
- 1993
- Ensured women & minorities included in clinical research
Best Pharmaceuticals for Children Act
Pediatric Research Act
- 2002 & 2003
- Required drugs marketed to children to be tested for for safety & effectiveness on children
- Recognized child’s response to drug not just effected by size & weight (children not just small adults)
Drug Research Phase I
- Drug or treatment tested on small group (20-100)
- Looks at drug safety, safe dosage range, & identifying side effects
- Usually given to healthy people with no underlying health conditions
Drug Research Phase II
- Drug or treatment tested on group of 100-300
- Looks at safety & effectiveness of new drug
- Given to study participants who have condition drug is meant to treat
Drug Research Phase III
-Drug tested on large groups (usually >1000) of
participants who have the condition that the new medication is meant to treat
-Trials in this phase can last for several years
-Evaluates how medication works compared to existing treatments
-Usually involves double-blind, randomized trials to eliminate bias in interpreting results
Drug Research Phase IV
- Studies drug after approved for marketing
- Looks at long-term affects & safety after widespread, long-term use in varied populations
Randomized controlled trials
- Most reliable way to evaluate drug therapy
- Makes sure differences in outcome result from drug treatment, NOT differences in subjects
- Prevents allocation bias (grouping pts by characteristics)
Double blind study
Neither researcher nor research subject know who is receiving experimental treatment