| Code | Display | Definition |
| treatment |
Treatment Study |
One or more interventions are being evaluated for treating a disease, syndrome, or condition. |
| prevention |
Prevention Study |
One or more interventions are being evaluated for preventing the development of a disease or condition. |
| diagnostic |
Diagnostic Study |
One or more methods are being evaluated for use in detecting a disease or condition, typically in persons who have symptoms or signs of the condition. For example, a mammography to evaluate a palpable mass. |
| screening |
Screening Study |
One or more methods are being evaluated for use in detecting a disease or condition, in people who do not yet show symptoms or signs of the condition. For example, a mammography every 2 years in a woman with no current breast concerns. |
| supportive-care |
Supportive Care Study |
One or more interventions are being evaluated for maximizing comfort, minimizing side effects, or mitigating against a decline in the participant's health or function. |
| health-services-research |
Health Services Research |
An investigation for evaluating the delivery, processes, management, organization, or financing of health care. |
| basic-science |
Basic Science |
An investigation to increase general scientific knowledge, such as examining the mechanism of action (for example, physiology or biomechanics) of a disease process or intervention. |
| device-feasibility |
Device Feasibility Study |
An intervention of a device product is being evaluated to determine the feasibility of the product or to test a prototype device and not health outcomes. Such studies are conducted to confirm the design and operating specifications of a device before beginning a full clinical trial. |
| safety |
Safety Study |
One or more interventions are being evaluated for associated risks or adverse events. (Note: Risks associated with interventions are evaluated in Safety Studies, whereas risks associated with conditions or non-interventional exposures are evaluated in Risk Association Studies.) |
| risk-association |
Risk Association Study |
One or more conditions or non-interventional exposures are being evaluated for associated risks or adverse events. (Note: Risks associated with interventions are evaluated in Safety Studies, whereas risks associated with conditions or non-interventional exposures are evaluated in Risk Association Studies.) |
| efficacy |
Efficacy Study |
One or more interventions are being evaluated for how well they achieve their intended purpose, such as the ability to treat or prevent a disease, syndrome, or condition. |
| pharmacokinetic |
Pharmacokinetic Study |
A study of the process or processes by which a drug is absorbed, distributed, metabolized, or eliminated by the body. |
| pharmacodynamic |
Pharmacodynamic Study |
A study of the mechanism of drug action, biochemical effect, or physiological effect of a drug. |
| bioequivalence |
Bioequivalence Study |
A study comparing two drug formulations to evaluate similarity in pharmacokinetic effects to determine if they are therapeutically interchangeable. |
| dose-response |
Dose-Response Study |
A study evaluating the relationship between the amount of a substance or degree of exposure and the resulting effect or biological response. |
| pharmacogenetic |
Pharmacogenetic Study |
A study evaluating how specific gene variations affect individual drug responses. |
| pharmacogenomic |
Pharmacogenomic Study |
A study evaluating how multiple gene variations affect individual drug responses. |
| pharmacoeconomic |
Pharmacoeconomic Study |
A study evaluating the economic costs and value of a drug. This may include cost-effectiveness, cost-benefit, and cost-utility analyses. |
| incidence |
Incidence Study |
A study that assesses the occurrence of new cases of disease, condition, or injury in a defined population over a specified period of time. |
| prevalence |
Prevalence Study |
A study that assesses the proportion of members of a population who have a particular disease, condition, or injury at a specified point in time or over a specified period of time. |
| prediction |
Prediction Study |
One or more methods are being evaluated for use in predicting the risk of a disease or condition. |
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