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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...
Nurses' Legal Responsibilities I01:27

Nurses' Legal Responsibilities I

In healthcare, informed consent is a crucial process that involves thoroughly communicating medical treatment options to patients, including benefits, risks, potential side effects, and alternatives. This process enables patients to make well-informed decisions about their care, ensuring they understand the implications of their choices before consenting to or refusing treatment.
The legal responsibilities of a nurse regarding informed consent include the following:
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

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, controlled...
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...

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Working with Human Tissues for Translational Cancer Research
07:48

Working with Human Tissues for Translational Cancer Research

Published on: November 26, 2015

Informed consent for clinical trials: a review.

V M Lema1, M Mbondo, E M Kamau

  • 1Family Health International, Africa Regional Office, P.O. Box 38835-00623, Nairobi, Kenya.

East African Medical Journal
|August 26, 2009
PubMed
Summary

Informed consent for clinical trials in sub-Saharan Africa faces challenges due to literacy, cultural factors, and weak ethics committees. True understanding and voluntary participation are often compromised, necessitating improved guidelines and local capacity building.

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Area of Science:

  • Global Health
  • Bioethics
  • Clinical Research

Background:

  • Informed consent is a cornerstone of ethical clinical research.
  • Sub-Saharan Africa presents unique challenges in implementing informed consent processes.

Purpose of the Study:

  • To identify and highlight challenges related to the informed consent process for clinical trials in sub-Saharan Africa.

Main Methods:

  • Review of published original research findings and reviews in English literature.
  • Inclusion of anecdotal information from professional experiences.
  • Online searches and requests for reprints.

Main Results:

  • Informed consent in sub-Saharan Africa is often not truly informed or voluntary.
  • Low literacy, socio-economic, and cultural factors impede guideline implementation.
  • Weak or non-existent local ethics committees, language barriers, and perceived benefits affect participant understanding and enrollment.

Conclusions:

  • Need for national guidelines addressing local circumstances and international standards for clinical research ethics.
  • Development and strengthening of local bioethics and research capacity are crucial.
  • Research sponsors should contribute to capacity building; local research on informed consent validity is needed.