Radiotherapy Side Effects

This is a multicenter, randomized, controlled, prospective clinical trial designed to observe and evaluate the safety and efficacy of Modified Dahuang Huanglian Xiexin Mouthwash for the prevention of radiotherapy-induced oral mucositis (RTOM). Participants will be randomly assigned to receive either the Modified Dahuang Huanglian Xiexin Mouthwash or Placebo Mouthwash. The study aims to assess the preventative effect on RTOM in patients undergoing radiotherapy.

This single-center randomized controlled trial evaluates the effects of cold (15-20°C) versus room-temperature (30-35°C) water gargling on oral mucositis severity, pain, and comfort in patients with head and neck cancer undergoing radiotherapy. Participants will rinse their mouth four times daily for 30-60 seconds over a 6-week radiotherapy course, with follow-up for two additional weeks. The study hypothesizes that cold-water rinsing can reduce the severity of radiation-induced oral mucositis (RTOM) and pain, improve oral comfort, and minimize treatment interruptions.

This study focuses on a common side effect experienced by many patients after radiation therapy for nasopharyngeal cancer, which is a type of head and neck cancer. This side effect is called secretory otitis media (fluid buildup in the middle ear). It can cause a feeling of fullness in the ear and hearing loss. While procedures like ear tube placement can help, they can also lead to other problems like ear infections and drainage. Radiation treatment is thought to cause inflammation that disrupts the normal function of the tube connecting the ear to the throat (Eustachian tube), leading to this fluid buildup. A nasal spray containing a steroid medicine (triamcinolone acetonide) is already known to be safe and effective at reducing inflammation in the ear fluid of both children and adults. We believe that using this spray may also help prevent and improve this condition in nasopharyngeal cancer patients after radiation therapy. The main goal of this study is to explore whether this nasal spray can effectively prevent or reduce fluid buildup in the ear following radiation therapy. We hope this non-invasive treatment will provide a new option to improve the quality of life for these patients.

Gynecological cancers, including those affecting the ovaries, uterus, and cervix, represent a significant health burden for women. While survival rates have improved, many women experience chronic pelvic pain secondary to cancer treatment, especially radiotherapy and chemotherapy. This treatment-induced pelvic pain can be of difficult management and significantly affects patients' quality of life. In our experience, ozone therapy has emerged as a promising complementary treatment for pain relief in patients with chronic diseases, including side effects of cancer treatment. However, the genetic and epigenetic mechanisms influencing its effectiveness have not yet been thoroughly studied. The aim of this prospective study is to analyze how ozone therapy modulates the expression of certain genes and its impact on epigenetic clocks, which could help predict pain response.