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Related Concept Videos

Clinical Trials01:16

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
Drug Regulation01:25

Drug Regulation

Drug regulation encompasses the management of drug usage by evaluating its safety and efficacy through assessments conducted by regulatory authorities. Regrettably, the history of drug regulation is marred by several catastrophic events. One such incident is the Elixir Sulfanilamide tragedy, in which the toxic compound diethyl glycol was included in a sweet-tasting medication, leading to numerous fatalities. This event prompted the enactment of the Food, Drug, and Cosmetic Act in 1938. Under...
Pharmacovigilance01:19

Pharmacovigilance

Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
Preclinical Development: Overview01:28

Preclinical Development: Overview

Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
Drug Administration and Therapy Phases: Overview01:26

Drug Administration and Therapy Phases: Overview

Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
The pharmaceutical phase focuses on leveraging the physicochemical properties of the drug to design and manufacture an effective product. Variants include orally administered tablets or capsules, topical creams or ointments, and parenteral-delivery solutions or emulsions.
The pharmacokinetic phase...

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Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia
10:49

Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia

Published on: September 19, 2013

Drug evaluation after marketing.

D Slone, S Shapiro, O S Miettinen

    Annals of Internal Medicine
    |February 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Current drug evaluation systems are inadequate. Post-marketing safety research needs flexible data systems, while efficacy requires randomized trials. Both benefit from standby capabilities and external resources for efficient assessment.

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    Area of Science:

    • Pharmacovigilance and drug safety research.
    • Clinical trial design and methodology.
    • Health services research and drug utilization.

    Background:

    • Post-marketing surveillance is crucial for assessing drug safety and efficacy.
    • Existing national systems often fall short in evaluating drugs effectively after market release.
    • Comprehensive evaluation requires diverse research approaches.

    Purpose of the Study:

    • To highlight the inadequacies of current national systems for post-marketing drug evaluation.
    • To propose improved methodologies for assessing drug safety and efficacy.
    • To advocate for enhanced data systems and research capabilities.

    Main Methods:

    • Distinguishing between nonexperimental research for safety and randomized, blinded experiments for efficacy.
    • Emphasizing the need for routine, flexible, multipurpose data systems for safety monitoring.
    • Suggesting the use of "standby" research capabilities and external resources for ad hoc studies.

    Main Results:

    • Current national systems are insufficient for robust post-marketing drug evaluation.
    • Safety assessment can be effectively conducted using nonexperimental research designs.
    • Efficacy evaluation in real-world settings necessitates rigorous experimental approaches, including randomization and blinding.

    Conclusions:

    • Improved national systems are essential for comprehensive drug safety and efficacy evaluation.
    • Flexible data systems and experimental designs are key to effective post-marketing research.
    • Leveraging "standby" capabilities and external resources can enhance research efficiency and responsiveness.