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Related Concept Videos

Cancer Survival Analysis01:21

Cancer Survival Analysis

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...
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.
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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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Mouse Models of Cancer Study

Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
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Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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 specific...

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Related Experiment Video

Updated: Jul 8, 2026

Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo
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Target trial emulation studies in oncology: a comprehensive analysis.

Chenfeng Tan1, Zelei Dai1, Renjie Zhao2

  • 1Division of Head & Neck Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China.

The Oncologist
|July 7, 2026
PubMed
Summary

Target trial emulation (TTE) in oncology generates valuable real-world evidence. However, most studies lack prospective registration and standardized reporting, impacting credibility. Improving these areas is crucial for future research.

Keywords:
Target trial emulationoncologyreal-world evidence

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Area of Science:

  • Real-world evidence generation
  • Comparative effectiveness research
  • Oncology research methodology

Background:

  • Target trial emulation (TTE) is key for real-world comparative effectiveness evidence.
  • Analysis of TTE's methodological characteristics and clinical utility in oncology is limited.
  • This study systematically evaluates oncological emulation studies.

Purpose of the Study:

  • To systematically evaluate the methodological characteristics of TTE studies in oncology.
  • To assess the clinical utility and consistency of TTE with RCTs in oncology.
  • To identify areas for improvement in TTE methodology within oncology.

Main Methods:

  • Systematic literature search of PubMed, Embase, and Web of Science (up to Dec 22, 2023).
  • Analysis of study characteristics, TTE components, and consistency with corresponding randomized controlled trials (RCTs).
  • Statistical analysis using Chi-square tests in SPSS v27.0; p<0.05 considered significant.

Main Results:

  • 54 TTE studies were included, predominantly from the US (40.7%) and focusing on colorectal cancer (24.1%).
  • Most studies used national databases (33.3%) and prospectively defined protocols, but only 1.9% were prospectively registered.
  • Among 10 RCT-TTE pairs, 60% showed agreement in statistical significance and effect estimates.

Conclusions:

  • TTE studies in oncology offer significant value for high-quality real-world evidence.
  • Enhancing credibility and reproducibility requires prioritizing prospective protocol registration.
  • Standardizing reporting guidelines is essential for future TTE research in oncology.