The extent to which a therapy produces a benefit in a defined population in controlled or ideal circumstances.
Efficacy studies, usually randomised controlled trials, are undertaken under experimental or'controlled' conditions to develop and refine strategies. They provide important, but limited, information regarding the outcomes of interventions under ideal circumstances.
The measure of how well something does what it’s supposed to do under ideal conditions, for example in a lab instead of in the patients’ everyday lives.
The ability of the drug to control or cure an illness.
A measure of the probability and intensity of beneficial effects.
a term meaning how well or effectively a hair removal device works
A term borrowed from pharmacology describing the maximum response of anadministered supplement, regardless of the dose. At a certain point, consuming more of a particularsubstance fails to elicit any greater effect. For example, the chemically dissimilar supplements Aand B have each been shown to increase lean body mass by different mechanisms. However, product Aalways results in greater total increases in lean body mass than supplement B. So, no matter how muchsupplement B a person consumes, he/she cannot expect greater increases in lean body mass with B whencompared with an optimal dose of A. Similarly, for a person in excruciating pain, no quantity of aspirinwill be as efficacious as an optimal dose of morphine. Efficacy is much more important than eitherbioavailability or potency.
Power or capacity to produce a desired, or in the context of disease, beneficiary effect.
Under ideal conditions, how well a treatment, therapy or procedure produces a desired health outcome (cure, alleviation of pain, return of functional abilities).
the greatest ability of a drug of treatment to produce a result, regardless of dosage
The ability of a lighting system to produce the desired result.
The degree to which a diagnostic test or treatment produces a desired result in patients under the idealized circumstances of a clinical trial.
A term used to describe the ability of a drug to do what it is intended to do.
The benefit of an intervention derived from a research setting.
In vaccine research, the ability of a vaccine to protect vaccinated people against a specific infection or disease. A vaccine may be tested for efficacy in Phase III trials if (smaller) Phase I and Phase II trials show it to be safe and promising.
Refers to how well or effective a hair removal device works
capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine"
A term introduced by Stephenson (1956) to describe the way in which agonists vary in the response they produce even when they occupy the same number of receptors.
The ability of a product to perform according to label claims.
Production of the desired effect.
Maximum ability of a drug/treatment to produce results regardless of dosage; ability to produce the desired effect at optimal dose; ability to produce beneficial effects.
The ability of a treatment to cause the desired effect - that is, whether the treatment works
The power or capacity to produce a desired effect.
The ability of a treatment mechanism or drug to achieve its goal under ideal conditions.
Able to achieve the desired results or produces beneficial results.
How well a treatment works (i.e., how effective it is).
The extent to which the project's objectives were achieved or expected to be achieved, taking into account their relative importance.
a measure of the benefit resulting from an intervention for a given health problem under the ideal conditions of an investigation; it answers the question, "Does the practice do more good than harm to people who fully comply with the recommendations?" ( Therapy)
Ability to produce the desired effect. Example: Prescription drugs are tested for safety and efficacy.
The degree to which an intervention produces a desired outcome under relatively optimal or ideal conditions such as with expert, well trained staff, and selected subjects.
the benefit of using a technology for a particular problem under ideal conditions, for example, in a laboratory setting, within the protocol of a carefully managed randomized controlled trial, or at a "center of excellence."
The ability of a treatment to achieve the desired results under ideal study conditions. Most clinical drug trials are performed under these conditions, in which ideal patients are selected to test a product's ability to treat infection, for instance. The potential effects of treatment resulting from the drug under optimal circumstances. (e.g. patients all taking their doses at the right times, physicians prescribing correct doses, side effects appropriately monitored, etc). Efficacy studies are typically the foundation of new drug submissions to the Food and Drug Administration (FDA). Studies that compare the efficacy of similar drugs, rather than just efficacy compared to placebo are preferable.
The extent to which medical treatments achieve health improvements under ideal circumstances.
An evaluation of a new, untested intervention to see whether it produces the desired outcome in a sample of the population under optimal program conditions.
The therapeutic effect of a drug.
Political self-confidence; a citizen's belief that his or her politial participation can produce a desired outcome. | Darlene attributed her volunteer campaign work to her interest in the issue and her efficacy. [ Lesson 10
Usefulness; the power to produce an effect.
The term used to indicate that a drug works. When new drugs are created in the United States, before they can be used by patients, clinical efficacy trials must be conducted to prove the drug produces a significant improvement compared with placebo (sugar pill). Close Window
The desired effect of a pesticide (e.g. crop protection, pest eradication)
Strength, effectiveness. The ability of an intervention to produce the desired beneficial effect in expert hands and under ideal circumstances.
Capacity for producing the desired result or effect. A drug that cures a particular disease has efficacy for treating that disease and is efficacious.
The property of a drug to achieve the desired response.
a product's ability to produce beneficial effects on the duration or course of a disease.
Ability of a drug to activate a specific receptor and trigger the maximal physiological response.
the effectiveness of a vaccine, or how well a vaccine works.
The ability of a drug, test or treatment to relieve symptoms, detect or eliminate the disease.
(Of a drug or treatment). The maximum ability of a drug or treatment to produce a result regardless of dosage. A drug passes efficacy trials if it is effective at the dose tested and against the illness for which it is prescribed. In the procedure mandated by the FDA, Phase II clinical trials gauge efficacy, and Phase III trials confirm.
The benefit of an intervention under ideal conditions.
Measure of effectiveness to determine the rates of pregnancy prevention. For the purposes of the Today® Sponge, efficacy is measured as method effectiveness and use effectiveness.• Method Effectiveness — The level of effectiveness expected by women who follow the printed instructions exactly, using the Today® Sponge every time they have intercourse. As users become more familiar with the product, method effectiveness rates increase. • Use Effectiveness — The level of effectiveness that can be expected by a large group of women, some of who either fail to use Today® Sponge correctly or do not use it every time they have intercourse.
The effectiveness of a drug for a specific indication
the ability to achieve the intended result; the capacity for a contact lens or solution to achieve the purpose for which it was designed.
The probability of benefit to individuals in a defined population from a medical technology applied for a given medical problem under ideal conditions of use.
The ability of a drug to produce the desired therapeutic effect
The efficacy of an intervention is the benefit obtained under ideal circumstances, like in a controlled study. In contrast, see effectiveness.
effectiveness; the ability to achieve a desired effect.
The ability of a drug to produce desired clinical results.
Efficacy is used to describe how well a drug works under optimum conditions, such as during a closely monitored clinical trial.
A productâ€(tm)s ability to produce beneficial effects on the course or duration of a disease.
the degree to which a therapy produces the desired effect; effectiveness
a drug's effectiveness in producing the desired result
The extent to which an intervention improves the outcome for people under ideal circumstances. Testing efficacy means finding out whether something is capable of causing an effect at all.
The strongest effect that a medical product can have when tested in an ideal situation. Phase II and III trials test efficacy to show how well a product can work at its very best. See Effectiveness.
The power of a treatment to have an effect.
eFF-iH-Kah-see) A non-quantitive measure of effectiveness. Example: Sparying pesticides diminishes the biocontrol agent's efficacy.
A drug product is said to have efficacy, if it functions as it is purported to do in its labeling and advertising.
If researchers show that a drug has 'efficacy' (or is 'efficacious'), they show that it improves a disease or condition in a controlled environment, like a laboratory. Proving efficacy is a first step to show that the drug can work when it is taken in the right way. If researchers show that a drug is 'effective', they show that it improves a disease or condition outside of a controlled environment. For instance, if a drug lowers cholesterol in a study, it is efficacious. But if that drug has to be taken exactly 1 hour after eating, it might not be effective because it is too hard for people to remember to take it at exactly the right time.
Specific ability of the biological product to produce the result for which it is offered when used under the conditions recommended by the manufacturer..
The ability of a program to produce results under ideal conditions. See Effectiveness and Efficiency.
the measure of a vaccines (or treatment's) effectiveness. Measured by the proportion of those immunised who don't get a disease when exposed to it, or by the number of antibodies produced by the immune system.
effectiveness, as of an insecticide; a productâ€(tm)s ability to control the specified target pest or to produce the specified action.
(noun) The power to produce desired effect.
The extent to which a specific intervention, procedure, regimen or service produces a beneficial result under ideal conditions.
In vaccine research, the ability of a vaccine to produce a desired clinical effect, such as protection against a specific infection or disease in a given population. A vaccine may be tested for efficacy in Phase 3 trials if it shows some promise in smaller Phase 1 and 2 trials.
Effectiveness. Usually refers to the effectiveness of an AED in controlling seizures.
Ability to be effective, effectiveness.
A synomym for effectiveness.
Another word used to mean effectiveness.
The power or ability to produce an effect.
Able to achieve the desired resultsor produces beneficial results.
Power or capacity to produce a desired effect; effectiveness.
Demonstration That the vaccine induces a defined biological outcome (e.g. - reduced clinical disease, reduced shedding of a pathogen, reduced transmission of a disease agent) that is relevant to the label claim on the vaccine.
The power to produce an effect. Chlorine's efficacy is affected by many factors, including the sun, temperature, water balance and the water's chlorine demand.
A measure used to describe how good a vaccine is at preventing the targeted disease.
a drug's capability of producing a specific therapeutic effect.
The capacity of humans to produce results responsively.
In scientific research, a treatment's efficacy is its power to obtain a desired effect, such as reducing pain.
( eff-uh-kuh-see): effectiveness. The ability of a treatment to produce the desired result.
The BMW I have selected for a test drive blows all four tires, stalls out and crashes on the dealer’s special runway. I spend two days in the hospital. This is a breakdown in efficacy. See effectiveness.
The power to produce and effect.
The ability to produce a desired beneficial effect. In hair removal, the effectiveness of a hair removal procedure or device.
How well something functions, such as a drug treatment. Antiretroviral (anti-HIV) drugs are effective if they decrease the amount of HIV in the blood (viral load). Antiretroviral drugs are also effective if they increase CD4 T-cell counts.
The ability to cause an effect.
Efficacy is the ability to produce a desired amount of a desired effect.
