user: What are the treatments for Gestational Trophoblastic Disease ?

assistant: Key Points
                    -  There are different types of treatment for patients with gestational trophoblastic disease.    - Three types of standard treatment are used:         - Surgery     - Chemotherapy      - Radiation therapy         - New types of treatment are being tested in clinical trials.     - Patients may want to think about taking part in a clinical trial.    - Patients can enter clinical trials before, during, or after starting their cancer treatment.    - Follow-up tests may be needed.
                
                
                    There are different types of treatment for patients with gestational trophoblastic disease.
                    Different types of treatment are available for patients with gestational trophoblastic disease. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. Before starting treatment, patients may want to think about taking part in a clinical trial. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment.   Clinical trials are taking place in many parts of the country. Information about ongoing clinical trials is available from the NCI website. Choosing the most appropriate cancer treatment is a decision that ideally involves the patient, family, and health care team.
                
                
                    Three types of standard treatment are used:
                    Surgery    The doctor may remove the cancer using one of the following operations:            -  Dilatation and curettage (D&C) with suction evacuation: A surgical procedure to remove abnormal tissue and parts of the inner lining of the uterus. The cervix is dilated and the material inside the uterus is removed with a small vacuum-like device. The walls of the uterus are then gently scraped with a curette (spoon-shaped instrument) to remove any material that may remain in the uterus. This procedure may be used for molar pregnancies.     -  Hysterectomy: Surgery to remove the uterus, and sometimes the cervix. If the uterus and cervix are taken out through the vagina, the operation is called a vaginal hysterectomy. If the uterus and cervix are taken out through a large incision (cut) in the abdomen, the operation is called a total abdominal hysterectomy. If the uterus and cervix are taken out through a small incision (cut) in the abdomen using a laparoscope, the operation is called a total laparoscopic hysterectomy.              Chemotherapy      Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the cerebrospinal fluid, an organ, or a body cavity such as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). The way the chemotherapy is given depends on the type and stage of the cancer being treated, or whether the tumor is low-risk or high-risk.     Combination chemotherapy is treatment using more than one anticancer drug.    Even if the doctor removes all the cancer that can be seen at the time of the surgery, some patients may be given chemotherapy after surgery to kill any tumor cells that are left. Treatment given after the surgery, to lower the risk that the cancer will come back, is called adjuvant therapy.    See Drugs Approved for Gestational Trophoblastic Disease for more information.       Radiation therapy      Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy:            -  External radiation therapy uses a machine outside the body to send radiation toward the cancer.     -  Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer.           The way the radiation therapy is given depends on the type of gestational trophoblastic disease being treated. External radiation therapy is used to treat gestational trophoblastic disease.
                
                
                    New types of treatment are being tested in clinical trials.
                    Information about ongoing clinical trials is available from the NCI website.
                
                
                    Patients may want to think about taking part in a clinical trial.
                    For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.   Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.   Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.
                
                
                    Patients can enter clinical trials before, during, or after starting their cancer treatment.
                    Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.   Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials.
                
                
                    Follow-up tests may be needed.
                    Some of the tests that were done to diagnose the cancer or to find out the stage of the cancer may be repeated. Some tests will be repeated in order to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests.   Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups.    Blood levels of beta human chorionic gonadotropin (-hCG) will be checked for up to 6 months after treatment has ended. This is because a -hCG level that is higher than normal may mean that the tumor has not responded to treatment or it has become cancer.
                
		        
		            Treatment Options for Gestational Trophoblastic Disease
		            
		                
		                    Hydatidiform Moles
		                    Treatment of a hydatidiform mole may include the following:         -  Surgery (Dilatation and curettage with suction evacuation) to remove the tumor.        After surgery, beta human chorionic gonadotropin (-hCG) blood tests are done every week until the -hCG level returns to normal. Patients also have follow-up doctor visits monthly for up to 6 months. If the level of -hCG does not return to normal or increases, it may mean the hydatidiform mole was not completely removed and it has become cancer. Pregnancy causes -hCG levels to increase, so your doctor will ask you not to become pregnant until follow-up is finished.   For disease that remains after surgery, treatment is usually chemotherapy.   Check the list of NCI-supported cancer clinical trials that are now accepting patients with hydatidiform mole. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
		                
		                
		                    Gestational Trophoblastic Neoplasia
		                    Low-risk Gestational Trophoblastic Neoplasia    Treatment of low-risk gestational trophoblastic neoplasia (GTN) (invasive mole or choriocarcinoma) may include the following:            -  Chemotherapy with one or more anticancer drugs. Treatment is given until the beta human chorionic gonadotropin (-hCG) level is normal for at least 3 weeks after treatment ends.           If the level of -hCG in the blood does not return to normal or the tumor spreads to distant parts of the body, chemotherapy regimens used for high-risk metastatic GTN are given.    Check the list of NCI-supported cancer clinical trials that are now accepting patients with low risk metastatic gestational trophoblastic tumor. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.       High-risk Metastatic Gestational Trophoblastic Neoplasia    Treatment of high-risk metastatic gestational trophoblastic neoplasia (invasive mole or choriocarcinoma) may include the following:            -  Combination chemotherapy.     -  Intrathecal chemotherapy and radiation therapy to the brain (for cancer that has spread to the lung, to keep it from spreading to the brain).     -  High-dose chemotherapy or intrathecal chemotherapy and/or radiation therapy to the brain (for cancer that has spread to the brain).           Check the list of NCI-supported cancer clinical trials that are now accepting patients with high risk metastatic gestational trophoblastic tumor. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.       Placental-Site Gestational Trophoblastic Tumors and Epithelioid Trophoblastic Tumors    Treatment of stage I placental-site gestational trophoblastic tumors and epithelioid trophoblastic tumors may include the following:            -  Surgery to remove the uterus.           Treatment of stage II placental-site gestational trophoblastic tumors and epithelioid trophoblastic tumors may include the following:            - Surgery to remove the tumor, which may be followed by combination chemotherapy.           Treatment of stage III and IV placental-site gestational trophoblastic tumors and epithelioid trophoblastic tumors may include following:            - Combination chemotherapy.     - Surgery to remove cancer that has spread to other places, such as the lung or abdomen.           Check the list of NCI-supported cancer clinical trials that are now accepting patients with placental-site gestational trophoblastic tumor and epithelioid trophoblastic tumor. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
		                
		                
		                    Recurrent or Resistant Gestational Trophoblastic Neoplasia
		                    Treatment of recurrent or resistant gestational trophoblastic tumor may include the following:         -  Chemotherapy with one or more anticancer drugs for tumors previously treated with surgery.    -  Combination chemotherapy for tumors previously treated with chemotherapy.    - Surgery for tumors that do not respond to chemotherapy.        Check the list of NCI-supported cancer clinical trials that are now accepting patients with recurrent gestational trophoblastic tumor. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.