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Except for small, single-location trials, the design and objectives are specified in a document called a clinical trial protocol. The protocol is the trial's "operating manual" and ensures all researchers perform the trial in the same way on similar subjects and that the data is comparable across all subjects. [citation needed]
Clinical trials testing potential medical products are commonly classified into four phases. The drug development process will normally proceed through all four phases over many years. [1] When expressed specifically, a clinical trial phase is capitalized both in name and Roman numeral, such as "Phase I" clinical trial. [1]
Randomized controlled trial [5]. Blind trial [6]; Non-blind trial [7]; Adaptive clinical trial [8]. Platform Trials; Nonrandomized trial (quasi-experiment) [9]. Interrupted time series design [10] (measures on a sample or a series of samples from the same population are obtained several times before and after a manipulated event or a naturally occurring event) - considered a type of quasi ...
Clinical trial – an experiment with human subjects to assess safety and efficacy of drugs Academic clinical trials – clinical trials run at academic centers (e.g., medical schools, academic hospitals, and universities) Clinical trials unit – biomedical research units dedicated to conducting clinical trials
When used as a clinical endpoint for trials of cancer treatments, this is often called the objective response rate (ORR). [10] [11] The FDA definition of ORR in this context is "the proportion of patients with tumor size reduction of a predefined amount and for a minimum time period."
Double-blind trials are thought to produce objective results, since the expectations of the doctor and the participant about the experimental drug do not affect the outcome; also called double-masked study. (NLM) A clinical trial in which neither the medical staff nor the person knows which of several possible therapies the person is receiving ...
The PICO process (or framework) is a mnemonic used in evidence-based practice (and specifically evidence-based medicine) to frame and answer a clinical or health care related question, [1] though it is also argued that PICO "can be used universally for every scientific endeavour in any discipline with all study designs". [2]
An IB is intended to provide the investigator with insights necessary for management of study conduct and study subjects throughout a clinical trial. An IB may introduce key aspects and safety measures of a clinical trial protocol, such as: Dose (of the study drug) Frequency of dosing interval; Methods of administration; Safety monitoring ...