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Related Concept Videos

Clinical Trials01:16

Clinical Trials

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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.
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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Conformity01:20

Conformity

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Conformity is the change in a person’s behavior to go along with the group, even if that person does not agree with the group.
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Statistical Software for Data Analysis and Clinical Trials01:12

Statistical Software for Data Analysis and Clinical Trials

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Statistical software is pivotal in data analysis and clinical trials by providing tools to analyze data, draw conclusions, and make predictions. These software packages range from simple data management applications to complex analytical platforms, supporting various statistical tests, models, and simulation techniques. Their significance lies in their ability to handle vast amounts of data with precision and efficiency, enabling researchers to validate hypotheses, identify trends, and make...
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Biological Effects of Radiation02:59

Biological Effects of Radiation

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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...
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Conformations of Butane02:20

Conformations of Butane

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Unlike ethane and propane that have only two major conformations, butane has more than two conformers. The staggered form of butane in which the bulky methyl groups on the two carbons are placed on opposite sides, that is, at a dihedral angle of 180°, is the lowest energy, most stable form — called the anti conformer. This conformation is stabilized due to the absence of steric repulsion between the largely spaced out methyl groups. The other two staggered conformations are...
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Related Experiment Video

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Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
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Phase I De-escalated RT in Endometrial Cancer.

Joshua P Schiff1, Silpa Raju-Salicki2, Tyler R McKinnish3

  • 1Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri; Department of Radiation Oncology, Keck School of Medicine of University of Southern California, Los Angeles, California.

International Journal of Radiation Oncology, Biology, Physics
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Summary
This summary is machine-generated.

Hypofractionated radiation (hypo-RT) combined with chemotherapy is a safe treatment for advanced endometrial cancer. This study found low rates of severe toxicities, suggesting potential for further trials.

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Area of Science:

  • Gynecologic Oncology
  • Radiation Oncology
  • Medical Oncology

Background:

  • The safety and efficacy of hypofractionated-radiation (hypo-RT) combined with chemotherapy for locally advanced endometrial cancer remain largely unknown.
  • This study aimed to evaluate the safety of hypo-RT when sequenced after chemotherapy in this patient population.

Purpose of the Study:

  • To assess the safety and tolerability of a treatment regimen involving adjuvant chemotherapy followed by hypofractionated radiation therapy (hypo-RT) for locally advanced endometrial cancer.
  • To determine the rates of acute and late high-grade toxicities (G3-5) in gastrointestinal, genitourinary, and hematologic systems.

Main Methods:

  • A phase I trial enrolled patients with FIGO 2009 stage III-IVA endometrioid adenocarcinoma or any stage serous, clear cell, or carcinosarcoma.
  • Patients underwent surgical staging, adjuvant chemotherapy, and intensity-modulated radiation therapy (25 Gy/5 fractions) to the vaginal cuff and pelvis.
  • Primary endpoints included acute and late high-grade toxicities; secondary endpoints included quality of life and survival outcomes.

Main Results:

  • Twenty-five patients were enrolled and evaluable. Most completed chemotherapy (21/25) and all completed hypo-RT (25/25).
  • Acute high-grade toxicities were 0% for GI and GU, and 12% for hematologic. Late high-grade toxicities were 0% for GI and GU, and 4% for hematologic.
  • No G4-5 toxicities were observed. At a median follow-up of 24.7 months, recurrence rates were 4% in-field and 16% distant; cancer-related deaths were 8%.

Conclusions:

  • Hysterectomy followed by adjuvant chemotherapy and hypo-RT is a safe treatment strategy for locally advanced endometrial cancer.
  • The regimen demonstrated a low incidence of high-grade toxicities, indicating good tolerability.
  • This combined modality approach warrants further investigation in a randomized clinical trial to confirm efficacy.