CLINICAL TRIALS Flashcards
It is systematic process that is intended to find out the safety and efficacy of a drug/device in treating/preventing/diagnosing a disease or a medical condition.
CLINICAL TRIAL
A clinical trial is a systematic process that is intended to find out the safety and efficacy of a drug/device in ___/____/___ a disease or a medical condition.
TREATING/ PREVENTING/ DIAGNOSING
It involves the study of the effect of an investigational drug/any other intervention in a defines population/participant.
CLINICAL TRIAL
The new FDA guidelines include five (5) phases:
PHASE 0 (micro-dosing studies)
PHASE 1
PHASE 2
PHASE 3
PHASE 4
Phase 0 and Phase 2 are called?
EXPLORATORY TRIAL PHASES
Phase 1 is termed the?
NON-THERAPEUTIC PHASE
Phase 3 is knows as the?
THERAPEUTIC CONFIRMATORY PHASE
Phase 4 is called the?
POST-APPROVAL OR POST-MARKETING SURVEILLANCE PHASE
Type of Clinical Trial:
RAMDOMIZED TRIAL
OPEN LABEL
BLINDED (SINGLE BLIND)
DOUBLE-BLINE (DOUBLE-BLIND)
PLACEBO
ADD-ON
SINGLE CENTER
MULTI-CENTER
Study participants are randomly assigned to a group.
RANDOMIZED TRIAL
Both study subjects and the researchers are aware of the drug being tested.
OPEN-LABEL
In____ , the subject has no idea about the group (test/control) in which they are placed
BLINDED (SINGLE-BLIND)
In the ____ study, the subjects as well ad the investigator have no idea about the test/control group.
DOUBLE-BLIND (DOUBLE-BLIND)
A substance that appears like a drug but has no active moiety.
PLACEBO
An additional drug apart from the clinical trial drug given to a group of study participants.
ADD ON
A study being carried out a particular place/location/center.
SINGLE CENTER
A study is being carried out at multiple places/location/centers.
MULTI-CENTER
Clinical trials are broadly classified into?
CONTROLLED and UNCONTROLLED TRIALS
Are potentially biased, and the results of such research are not considered as equally as the controlled studies.
UNCONTROLLED TRIALS
Are considered the most effective clinical trials, wherein the bias is minimized, and the results are considered reliable.
RANDOMIZED CONTROLLED TRIALS (RCTs)
The participants are assigned to a case or a control group baser on flipping coin results/computer assignment.
SIMPLE RANDOMIZATION
Equal and small group of both cases and controls.
BLOCK RANDOMIZATION
Randomization based on the age of the participant and other covariates.
STRATIFIED RANDOMIZATION
Sequential assignment of a new participants into a group based on the covariates.
CO-VARIATE ADAPTIVE RANDOMIZATION/MINIMIZATION
One intervention is administered to one-half of the body and the comparator intervention is assigned to another half of the body.
RANDOMIZATION BY BODY HALVES Or PAIRED ORGANS (SPLIT BODY TRIALS)
Intervention is administered to clusters/groups by randomization to prevent contamination and either active or comparator intervention is administered for each group.
CLUSTERED RANDOMIZATION
Patients are allocated to one of the two trial arms.
ALLOCATION BY RANDOMIZED CONSENT (ZELEN TRIALS)
Clinical research design has two major types:
NON-INTERVENTIONAL/OBSERVATIONAL
INTERVENTIONAL/EXPERIMENTAL
It may have a comparator group (analytical studies like case-control and cohort studies), or without it (descriptive study)
NON-INTERVENTIONAL STUDIES
The non-interventional studies may have a _____ (analytical studies like case-control and cohort studies) or without it (descriptive studies)
COMPARATOR GROUP
The experimental studies may be either?
RANDOMIZED OR NON-RANDOMIZED
It may be either randomized or non-randomized?
EXPERIMENTAL STUDIES
It has several types including parallel design, crossover design, factorial design, randomized withdrawal approach, adaptive design, superiority design, and non-inferiority design.
CLINICAL TRIAL DESIGNS
Randomization type:
• SIMPLE RANDOMIZATION
• BLOCK RANDOMIZATION
• STRATIFIED RANDOMIZATION
• CO-VARIATE ADAPTIVE RANDOMIZATION/MINIMIZATION
• RANDOMIZATION BY BODY HALVES OR PAIRED ORGANS (SPLIT BODY TRIALS)
• CLUSTERED RANDOMIZATION
• ALLOCATED BY RANDOMIZED CONSENT (ZELEN TRUALS)
This is the most frequent design wherein each arm of the study group is allocated a particular treatment (placebo(an inert substance)/therapeutic drug)
PARALLEL - RANDOMIZED
The patient in this trial gets each drug and the patients serve as a control themselves.
CROSSOVER - RANDOMIZED
Two or more interventions on the participants and the study can provide information on the interactions between the drugs.
FACTORIAL - NON-RANDOMIZED
This study evaluates the time/duration of the drug therapy.
RANDOMIZED WITHDRAWAL APPRACH - RANDOMIZED
Recruit patients with the same characteristics.
MATCHED PAIRS - POST APPROVAL STUDY
It is the most frequently performed clinical research.
This type of research is undertaken to analyze the presence or absence of a disease/condition, potential risk factors, and prevalence and incidence rates in a defines population.
OBSERVATIONAL RESEARCH USING CROSS-SECTIONAL STUDY DESIGN
Clinical trials may be ___ or ___ depending on the type of intervention.
THERAPEUTIC or NON-THERAPEUTIC TYPE
The _____ of clinical trial uses a drug that mey be beneficial to the patient
THERAPEUTIC
A ____ clinical trial, the participant does not benefit from the drug. It provide additional knowledge of the drug for future improvements.
NON-THERAPEUTIC TYPE
It is the most significant document in a clinical study.
It contains the information collected by the investigator about each subject participating in a clinical study/trial.
CASE RECORD/REPORT FORM (CRF)
A clinical study is conducted by a?
SPONSOR or a CLINICAL RESEARCH ORGANIZATION (CRO)
Examines too low (1/100th) concentrations (micro-dosing) of the drug for less time. Study the pharmacokinetics and determine the dose for phase I studies.
SAFETY ASSESSMEMT
Around <50 healthy subjects are recruiter. Establishes a safe dose range, and the MTD. Examines the pharmacokinetic and pharmacodynamic effects.
PHASE I
Recruiting around 5-100 patients of either sex. Examines the effective dosage and the therapeutic effects on patients. It decides the therapeutic regimen and drug-drug interactions.
PHASE II