Cancer is a serious disease that affects the lives of people of almost every age. Especially when cancer cells spread (metastasize) to the skeletal system, they cause severe symptoms and a decline in quality of life. Radium therapy, one of the types of radionuclide therapy, is the treatment approach used at this point. This technology, developed in recent years, makes it easier to manage cancer by destroying bone metastases.
What Is Radium?
Radium was first discovered in 1898 by Marie Curie and her husband Pierre Curie. Its atomic number is 88 and its symbol is Ra. It belongs to the alkaline earth metal group and has a silvery-white appearance. In their pioneering research on radioactivity, the Curies isolated radium from uranium ore. Because radium emits strong rays during radioactive decay, Marie Curie named it by deriving the name from the Latin word "radius," meaning ray.
Radium-226, its most stable isotope, exhibits radioactivity by emitting alpha, beta and gamma rays during the radioactive decay process. This intense radioactivity gives radium a bright luminescence. Thanks to this property, it has been used in many fields. In the early 20th century, the radioactive properties of radium were recognized, particularly in medicine, for use in cancer treatment. While the early applications of radium offered hope to cancer patients, they also highlighted the dangers of radiation exposure. Although historical uses of radium have declined due to health risks, the radioactive properties of radium still hold an important place in modern medicine. Radium-223, a radioactive isotope of radium, has emerged as a promising therapeutic agent in the treatment of metastatic prostate cancer.
For Which Diseases Is Radium Preferred?
In medicine, radium holds an important position both as a therapeutic agent and as a subject of ongoing research. Although its applications have evolved over time, radium continues to be preferred in certain diseases where its properties offer benefits. These diseases are:
Metastatic Prostate Cancer: Radium has emerged as a valuable tool in the treatment of metastatic prostate cancer. Prostate cancer is a condition in which cancer cells have spread to areas outside the prostate, especially to the bones. Radium-223, a radioactive isotope of radium, has shown effectiveness in targeting and destroying cancerous cells within bone, thereby helping to relieve pain and increase overall survival rates. Its ability to emit alpha particles makes it particularly effective in this area, because these particles can target cancer cells without damaging surrounding healthy tissue.
Bone Metastasis from Other Cancers: Radium is being investigated for the treatment of bone metastases arising from breast cancer and certain other types of cancer.
Other Applications: Ongoing research is also investigating the effect of radium-based therapies in the treatment of other medical conditions. These conditions include certain types of lymphoma, bone marrow disorders and neuroendocrine tumors.
How Is Radium-223 Therapy Administered?
Radium-223 is a radioactive isotope of radium that emits alpha particles and has a short range and high linear energy transfer. When it settles within bone, it delivers targeted radiation. Treatment is administered as follows:
Patient Evaluation: Before starting treatment with radium-223, patients are thoroughly evaluated by a nuclear medicine specialist. This evaluation includes the extent to which prostate cancer has spread, particularly to the bones, as well as the patient's general health condition.
Treatment Schedule: Radium-223 is generally administered as six injections, once every four weeks (monthly). The treatment course may be adjusted depending on the patient's response and the side effects observed.
Administration: Radium-223 is given by a healthcare professional as an injection into a vein (intravenous infusion). The procedure is performed in an outpatient treatment center, such as a clinic or hospital. The injection process is relatively quick and lasts only a few minutes.
Radiation Targeting: After injection, radium-223 circulates in the bloodstream and is taken up by bone areas affected by cancerous growths. The radiation emitted by radium-223 aims to kill cancer cells in the bone while trying not to harm the surrounding healthy tissue.
Monitoring and Follow-up: Patients receiving radium-223 therapy are closely monitored for both their response to treatment and possible side effects. Follow-up appointments may include blood tests, imaging studies (such as bone scans or CT scans), symptom management and discussions about overall health status.
Symptom Management: Radium-223 therapy aims to relieve bone pain and fractures associated with bone metastases and to slow the progression of the disease. During treatment, patients may take additional medications to help manage any side effects or symptoms.
What Is the Preparation Process Before Radium Therapy?
Before radium therapy, patients go through a comprehensive preparation process conducted by nuclear medicine specialists. This process begins with an assessment of the patient's medical history, current medications and general health condition. The initial stage helps determine the patient's suitability for radium therapy and potential risks. Imaging studies, such as bone scans or CT scans, may be performed to assess the size of bone metastases and identify the areas that would benefit most from radium therapy.
Blood tests may be performed to evaluate the patient's general health and to monitor key parameters such as blood cell counts and kidney function. The tests help ensure that the patient is in suitable condition for radium therapy and can tolerate potential side effects. Patients have a consultation with their doctor to review the proposed treatment plan. The consultation covers topics such as the number of radium injections, the treatment schedule and potential side effects. This stage allows patients to ask questions, express their concerns and make informed decisions about their treatment. Finally, before radium therapy, patients may receive specific instructions to follow, such as fasting or fed-state requirements or medication adjustments. These instructions help optimize the effectiveness of the treatment and minimize potential complications.
What Should Be Considered After Radium Therapy?
After radium therapy, several factors should be taken into account to ensure full recovery and manage possible side effects. First, regular follow-up and check-up appointments are important to evaluate the response to treatment and monitor for any complications. Following the guidance of the healthcare team, patients should take care to manage symptoms such as fatigue, nausea or diarrhea that may arise after radium therapy. Also, since radium therapy targets bone metastases, it is important to maintain bone health. For this reason, patients may be advised to adopt a healthy lifestyle, such as exercising regularly and increasing their intake of calcium and vitamin D. Continuing prescribed medications and following dietary recommendations can support recovery and maintain general health.
Coping with a cancer diagnosis and treatment can be emotionally challenging. Patients may benefit from support groups, counseling services or other mental health services to cope with stress, anxiety or depression. Long-term follow-up and monitoring are important to watch for cancer recurrence and late effects of treatment. Therefore, ongoing communication with healthcare professionals and adherence to screening guidelines are necessary. Overall, when these considerations are taken into account after radium therapy, full recovery can be achieved and quality of life can improve.
Frequently Asked Questions
Radium is used in the treatment of metastatic prostate cancer (mCRPC) with bone metastases. Its main purpose is to selectively target areas of increased bone turnover and to cause the death of cancer cells by emitting alpha particles. Radium therapy is recommended especially for patients diagnosed with resistant prostate cancer with bone metastases. These treatment candidates are those who still experience disease progression despite having undergone standard hormone therapy. However, eligibility for radium therapy is determined case by case by healthcare professionals, and various factors such as general health condition, treatment history and individual treatment goals are taken into account. Radium therapy targets cancer cells in bone metastases by emitting alpha particles and causes DNA damage in cancer cells, leading to cell death. Planning radium therapy requires a multidisciplinary approach. After the patient's medical history has been taken and evaluated with imaging studies, healthcare professionals determine treatment eligibility. By determining the number of radium injections and the administration schedule, they monitor potential side effects. Treatment plans can be adjusted according to individual response. Close communication between the healthcare team and the patient ensures personalized care. This helps optimize treatment effectiveness and minimize complications during the treatment process. Radium therapy is administered by a Nuclear Medicine physician specialized in the treatment of metastatic prostate cancer. Healthcare professionals work in close collaboration with a multidisciplinary team to assess treatment eligibility, plan treatment and monitor patients throughout the treatment process. Radium therapy can cause side effects such as fatigue, nausea, diarrhea and hematologic abnormalities. Patients may also experience bone pain or fractures due to the targeting of bone metastases. There is also a risk of bone marrow suppression, which can lead to decreased blood cell counts. Close monitoring during treatment helps manage these side effects. Healthcare professionals may recommend medications or supportive care strategies to relieve symptoms and improve patient comfort. Although radium-based therapies offer promising benefits in certain diseases, it is essential to carefully evaluate each patient's condition and consider the potential risks and benefits of treatment. Close monitoring and adherence to safety protocols are important to ensure safe and effective use of radium in disease management. If you need radium therapy, you may contact your doctor or hospitals that provide radium therapy.
