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Related Concept Videos

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.
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The hazard ratio (HR) is a widely used measure in clinical trials to compare the risk of events, such as death or disease recurrence, between two groups over time. It reflects the ratio of hazard rates—the instantaneous risk of the event occurring—between a treatment group and a control group. This measure provides valuable insights into the relative effectiveness of a treatment by assessing how the risk of an event differs between the two groups.
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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.
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Confounding is a critical issue in epidemiological studies, often leading to misleading conclusions about associations between exposures and outcomes. It occurs when the relationship between the exposure and the outcome is mixed with the effects of other factors that influence the outcome. Given that, addressing confounding is of high importance for drawing accurate inferences in research.
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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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Relative Risk01:12

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Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
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  11. Abstract Versus Concrete Risk Identification In Clinical Research In Japan: Randomized And Prospective Pilot Research On The Effect Of Risk Reduction Activities In A Risk-based Approach.
  1. Home
  3. Research Domains
  5. Biomedical And Clinical Sciences
  7. Oncology And Carcinogenesis
  9. Predictive And Prognostic Markers
  11. Abstract Versus Concrete Risk Identification In Clinical Research In Japan: Randomized And Prospective Pilot Research On The Effect Of Risk Reduction Activities In A Risk-based Approach.

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Abstract Versus Concrete Risk Identification in Clinical Research in Japan: Randomized and Prospective Pilot Research on the Effect of Risk Reduction Activities in a Risk-Based Approach.

Hidenobu Kondo1,2, Shih-Wei Chiu3, Yukikazu Hayashi4,5

  • 1Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan. kondo-h@a2healthcare.com.

Therapeutic Innovation & Regulatory Science
|October 28, 2024

View abstract on PubMed

Summary
This summary is machine-generated.
Keywords:
Quality management systemRisk evaluationRisk identificationRisk reduction activities

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The risk-based approach (RBA) in clinical trials can be improved. Using a risk assessment form (RAF) with fewer abstract categories reduced errors and protocol deviations compared to a risk assessment tool (RAT).

Area of Science:

  • Clinical Research Methodology
  • Drug Development
  • Quality Management in Trials

Background:

  • The risk-based approach (RBA) for clinical trials, introduced in 2011-2012, aims to reduce quality issues by aligning risk reduction activities with identified risks.
  • A lack of standardized methodologies for risk identification, evaluation, and reduction planning hinders consistent RBA implementation.
  • This study evaluates the effectiveness of two distinct risk identification and evaluation methods within the RBA framework.

Purpose of the Study:

  • To compare the efficacy of two risk identification and evaluation methods in planning and implementing risk reduction activities.
  • To assess the impact of different risk assessment approaches on the quality of clinical trial conduct.
  • To determine the optimal method for identifying and evaluating risks to minimize errors and protocol deviations.
Risk-based approach
Risk-based quality management

Main Methods:

  • Two risk identification and evaluation methods were selected: the risk assessment form (RAF) with fewer abstract categories and the risk assessment tool (RAT) with more concrete categories.
  • These methods were applied to a study on ponatinib blood concentration and treatment outcomes in chronic phase chronic myelogenous leukemia patients.
  • Clinical trial sites were randomized to implement risk reduction activities using either RAF or RAT, with subsequent comparison of mean errors and protocol deviations per subject visit.

Main Results:

  • The RAF group demonstrated a lower mean number of errors per subject visit compared to the RAT group.
  • The RAF group also showed a lower mean number of protocol deviations per subject visit than the RAT group.
  • These findings suggest a significant difference in the effectiveness of the two methods in controlling trial quality.

Conclusions:

  • Risk reduction strategies in clinical research are effectively implemented using methods that identify and evaluate risks within a limited set of abstract, quality-critical categories.
  • The RAF method, characterized by its abstract categorization, proved more effective than the RAT method in reducing errors and protocol deviations.
  • This study supports the use of simplified, abstract risk assessment tools for enhancing the quality and efficiency of clinical trials.