Related Experiment Video
Updated: May 1, 2026
08:34
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
Published on: February 6, 2019
20.6K
Implications of comparative effectiveness research for radiation oncology
Justin E Bekelman1, Anand Shah2, Stephen M Hahn2
1Department of Radiation Oncology, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania; Leonard Davis Institute for Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania.
Practical Radiation Oncology
|March 29, 2014
Summary
This study explores comparative effectiveness research (CER) in radiation oncology, detailing the strengths and weaknesses of various evidence forms like randomized trials and observational studies for generating robust clinical evidence.
Area of Science:
- Radiation Oncology
- Health Services Research
- Clinical Trials
Background:
- Comparative Effectiveness Research (CER) is crucial for understanding treatment efficacy in diverse patient populations and clinical settings.
- Radiation oncology faces a rapid influx of new technologies, necessitating robust evidence generation.
Purpose of the Study:
- To introduce the relative strengths and weaknesses of various evidence forms for CER in radiation oncology.
- To illustrate the potential for CER evidence generation within the field.
Main Methods:
- Discussion of traditional explanatory randomized trials (RCTs).
- Introduction to alternative study designs: pragmatic clinical trials (PCTs), adaptive trials, and observational studies.
- Analysis of the rationale, strengths, and limitations of each study design.
Main Results:
- Explanatory RCTs prioritize internal validity for efficacy assessment.
- PCTs balance internal and external validity in real-world settings.
- Adaptive trials offer flexibility for evolving evidence, while observational studies leverage increasing data availability but require bias mitigation.
Conclusions:
- The field of radiation oncology must invest in building the evidence base for CER.
- Active participation in initiatives generating comparative evidence is essential for advancing radiotherapy.
More Related Videos
Related Concept Videos
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
627
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,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
627
01:21Cancer Survival Analysis
863
Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
863
02:49Cancer Therapies
8.5K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
8.5K
02:59Biological Effects of Radiation
15.4K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
15.4K
02:57Targeted Cancer Therapies
7.0K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.0K
01:17Radiation: Applications
1.8K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.8K