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Related Concept Videos

Clinical Trials01:16

Clinical Trials

8.5K
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...
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Clinical Trials: Overview01:11

Clinical Trials: Overview

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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...
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Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

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Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
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Blinding01:11

Blinding

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Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
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Blind Procedures02:07

Blind Procedures

10.7K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
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Preclinical Development: Overview01:28

Preclinical Development: Overview

4.7K
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...
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A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
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Clinical trials in crisis: Four simple methodologic fixes.

Andrew J Vickers1

  • 1Memorial Sloan Kettering Cancer Center, New York, NY, USA vickersa@mskcc.org.

Clinical Trials (London, England)
|October 4, 2014
PubMed
Summary
This summary is machine-generated.

The US clinical trials system faces a crisis due to high costs and low patient enrollment. Proposed solutions include simplifying eligibility criteria and integrating routinely collected data to improve trial efficiency and patient outcomes.

Keywords:
Randomized controlled trialsresearch design

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Area of Science:

  • Clinical research methodology
  • Evidence-based medicine
  • Healthcare systems analysis

Background:

  • The current US clinical trials system is experiencing escalating costs and complexity, leading to high failure rates and a significant number of trials not being initiated.
  • Concerns extend beyond trial expense and failure, encompassing the substantial number of trials foregone due to projected costs and anticipated poor patient accrual.
  • Existing initiatives advocate for evidence-based practices across all trial phases, challenging traditional norms in clinical trial design, conduct, and dissemination.

Purpose of the Study:

  • To propose methodologic innovations to address the crisis in clinical trials.
  • To reduce costs, enhance patient acceptability, and overcome accrual barriers in randomized trials.
  • To ensure the continued benefit of randomized trials for patients through innovative approaches.

Main Methods:

  • Simplifying trial design by reducing eligibility criteria to the point where physician equipoise is the primary determinant.
  • Integrating routinely collected clinical data, upgraded to research grade, for use as trial endpoints.
  • Implementing cluster randomization of clinicians for treatment modifications and utilizing early patient consent for potential future randomization to novel interventions.

Main Results:

  • The proposed methods aim to decrease trial complexity and cost, making them more acceptable to patients.
  • Strategies are suggested to mitigate barriers to patient accrual, thereby increasing participation.
  • The innovations seek to improve the efficiency and feasibility of conducting randomized trials.

Conclusions:

  • The identified methodologic fixes offer potential solutions to the current crisis in clinical trials.
  • While these solutions may present their own challenges, innovative approaches are imperative given the benefits of randomized trials.
  • Ensuring the future success of randomized trials requires adapting methodologies to contemporary healthcare realities.