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Clinical efficacy

In medicine, clinical efficacy indicates a positive therapeutic effect. If efficacy is established, an intervention is likely to be at least as good as other available interventions to which it will have been compared. When talking in terms of efficacy versus effectiveness, efficacy measures how well a treatment works in clinical trials or laboratory studies. Effectiveness, on the other hand, relates to how well a treatment works in the practice of medicine.

Clinical pharmacology

In relation to clinical development, pharmacology deals with the effects of compounds (medicines in development) in healthy volunteers and in patients. It usually includes pharmacodynamics and pharmacokinetics. In the evaluation process the action and adverse effects of compounds can be measured and compared.

Clinical phase

The clinical phase of medicines development is the one involving humans, and is different from the ˜non-clinical™ or ˜pre-clinical phase™ in which studies are performed in labs or in animals (such as for pharmacology/toxicology analysis). Clinical studies are conducted in four steps, called ˜phases™ - each designed to answer separate research questions:

Clinical Practice

Clinical practice is the treatment and management of patients by healthcare professionals supported by clinical-based evidence. There are clinical practice guidelines that have been designed to assist health professionals and patients in decisions about appropriate health care for specific circumstances.

Clinical Practice Research Datalink

Clinical Practice Research Datalink (CPRD) https://www.cprd.com"

Clinical Research Associate

Clinical Research Associate

Clinical study

A clinical study is a scientific investigation in which participants receive a health-related intervention, such as a medicine, in order to learn about (discover or verify) how it works and interacts with the body (clinical, pharmacological, pharmacodynamic, and pharmacokinetic effects), or to identify any adverse reaction in order to understand the safety of and/or how well the medicine works (efficacy).
Previously, the terms clinical study and clinical trial were used synonymously. Refer to Regulation 2014/536 for more information.

Clinical study report

A clinical study report is a document containing extensive detail about the plan, methods and conduct of the study so that it is clear how the study was carried out. This report should provide a clear explanation of how the design features of the study were chosen and include results of the trial. A clinical study report should also provide enough individual patient data, to allow the key analyses of data to be repeated, should the regulatory authorities wish to do so. It is a central part of any application for a new medicine to receive marketing authorisation, and it must meet the requirements of the regulatory authority that has to assess the application.

Clinical trial

A clinical trial is a clinical study in which participants are assigned according to a pre-defined therapeutic strategy or plan (protocol) to receive a health-related intervention, such as a medicine, in order to investigate its effects on health outcomes, usually compared to another (or sometimes no) treatment.
Clinical trials are used to evaluate clinical practices that do not fall within the current practices of a country, or to evaluate a new medicine (investigational medicinal product).
Clinical trials are used to generate data on the safety and efficacy of the intervention. Clinical trials are conducted only after a regulatory authority approval and ethics committee review. Clinical trials are often characterised in Phases from I (first-in-human), II (exploratory), III (confirmatory) to IV (post approval).
Previously, the terms clinical study and clinical trial were used synonymously. Refer to Regulation 2014/536 for more information.

Clinical Trial Application

Clinical Trial Application


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