Clinical Research Directory

Safety and Diagnostic Efficacy of 177Lu-AF03 in Patients With Solid Tumors

This study evaluates 177Lu-AF03, a bispecific heterodimeric peptide targeting both FAP and integrin αvβ6, for safety, biodistribution, radiation dosimetry, and preliminary diagnostic efficacy in patients with malignant solid tumors. Preclinical studies showed enhanced tumor uptake, prolonged retention, and low uptake in non-target organs. Eight patients with confirmed malignant solid tumors will receive a single intravenous injection of 177Lu-AF03, followed by SPECT/CT imaging at multiple time points. Safety will be monitored until Day 7 post-injection.

Multitargeted Recombinant Ad5 PSA/MUC-1/Brachyury-Based Immunotherapy (TriAdeno) Vaccine With IL-15 Superagonist N-803 in Participants With Clinically Localized Prostate Cancer Undergoing Active Surveillance

Background: Prostate cancer is the second most common cause of cancer-related death among men in the United States. Early-stage, low-grade prostate cancer is managed with active monitoring. However, 35% of men with this cancer will need treatment within 5 years because of tumor growth. Researchers want to know if a new vaccine that targets 3 anti-cancer proteins (TriAdeno) plus a drug (N-803) approved for bladder cancer can help stop prostate tumors from growing. Objective: To test TriAdeno and N-803 in people with early-stage prostate cancer. Eligibility: People aged 18 years and older with early-stage low- or medium-risk prostate cancer. Design: Participants will be screened. They will have a physical exam with blood tests. They will have a test of their heart function. They will have an imaging scan. They may have a rectal exam. TriAdeno is injected under the skin of the upper thigh; N-803 is injected under the skin of the abdomen. Participants will be treated in up to four 21-day cycles. They will get both injections on the first day of each cycle. Participants may opt to complete a memory aid: They may record all of their symptoms for 7 days after each injection. They may also complete a questionnaire about their prostate symptoms. Blood tests, imaging scans, and other tests will be repeated during the study. A tissue sample (biopsy) of the tumor will be collected during or after cycle 2; a second biopsy may be taken about 1 year later. Participants will have follow-up phone calls for 5 years....

Real-world Evaluation of the Implementation of LC-OCT in Daily Clinical Practice

Basal cell carcinoma (BCC) is the most common skin cancer in the Netherlands, with incidence rates continuing to rise. The current diagnostic standard combines clinical evaluation and dermoscopy, while biopsy followed by histopathological examination remains the gold standard when uncertainty about the diagnosis persists. However, biopsy is invasive, time-consuming, and costly. Line-field confocal optical coherence tomography (LC-OCT) is a non-invasive imaging technique that has emerged as a promising alternative to biopsy for BCC suspected lesions. This retrospective study aims to evaluate the real-world clinical performance of LC-OCT in routine dermatological practice, where it has been integrated into the diagnostic work-up for BCC-suspect lesions.

First-Time-in-Human Study of GSK4381562 in Participants With Advanced Solid Tumors

This is a first time in-human (FTIH) study designed to investigate the safety, tolerability, pharmacokinetics (PK), and immunogenicity of remzistotug in participants with select loco-regionally recurrent solid tumors or metastatic solid tumors where curative or standard treatment options have been exhausted.

5-aza-4'-Thio-2'-Deoxycytidine (Aza-TdC) in People With Advanced Solid Tumors

Background: Blood, tissue, and tumor cells contain genes. Genes are made up of DNA. DNA is the "instruction book" for each cell. In some people with cancer, the genes that might have slowed the growth of their tumor were "turned off." Researchers want to see if a new drug can turn the genes back on and slow the tumor growth. The drug is called Aza-TdC. Objective: To test the safety of Aza-TdC, and to find out the dose of this drug that can be safely given to humans. Eligibility: People ages 18 and older who have advanced cancer that has gotten worse after standard treatment, or for which no effective therapy exists Design: Participants will be screened with: Medical history Blood and urine tests Scans to measure their tumors Test to measure the electrical activity of the heart Participants will take the study drug by mouth. The drug is given in cycles. Each cycle is 21 days (3 weeks) long. Week 1 and week 2: participants will take the study drug once a day for 5 days. Then they will have 2 days without the drug. Week 3: no study drug is taken. This completes one cycle of treatment. For cycle 1, participants will repeat the screening tests several times. For all other cycles, participants will have blood tests and pregnancy tests. They will have scans of their tumor every 6 weeks. The cycle will be repeated as long as the participant tolerates the drug and the cancer is either stable or gets better. Sponsoring Institute: National Cancer Institute

Hepatic Artery Infusion of Carfilzomib in Participants With Liver Metastatic Disease Previously Treated With Hepatic Artery Infusion Pump Therapy

Background: Cancers that begin in the colon, adrenal glands, or bile ducts may spread to the liver. These liver tumors are often treated using a hepatic artery infusion (HAI) pump. The HAI pump is installed in the artery that goes to the liver; drugs are administered directly to the liver through this pump. But these tumors often return after treatment. Carfilzomib (CFZ) is a drug approved to treat another kind of cancer. Researchers want to find out if this drug may be helpful when administered through the HAI pump directly to the liver for people with colon, adrenal glands, or bile duct cancer that has spread to the liver. Objective: To test the safety of carfilzomib (CFZ) delivered via a hepatic artery infusion (HAI) pump directly to the liver in people with cancer in their liver. Eligibility: People aged 18 years or older with cancers of the colon, adrenal glands, or bile ducts that spread to the liver and persist after treatment. They must have a functioning hepatic artery infusion (HAI) pump in place from previous treatment of HAI pump therapy. Design: Participants will be screened. They will have a physical exam, blood tests, imaging scans, and a test of their heart function. They will also have a test to show how the blood flows through their liver: A radioactive substance will be injected into a vein, and a special camera will take pictures of the blood flow for up to 1 hour. Participants will receive the study drug for about 6 months. They will visit the clinic once a week. Their HAI pump will be filled with the drug at each visit; the drug will slowly drain from the pump into the liver. Blood tests and imaging scans will be repeated during the study. Participants will have follow-up visits 1 and 3 months after their last dose of study drug. An optional liver biopsy (tissue sample) for research purposes may be done before the study drug is given, and again (optional) within 28 days after first receiving the study drug. Individuals may participate in the study even if they do not agree to have the biopsies done. ...

M7824 Related Adverse Effects in Adults With Cancer

Background: Immunotherapy drugs use a person s own immune system to help fight cancer. These drugs work better for some people than others. The drug M7824 has helped some people with cancer. But it can cause side effects. Researchers want to learn all the side effects that M7824 can cause. Once they do, they can prevent or reduce these side effects in future cancer treatments. This will lead to better overall outcomes for people with cancer. Objective: To make a thorough list of adverse events in people with cancer being treated with systemic therapies including M7824 at the National Cancer Institute (NCI). Eligibility: Participants previously enrolled in NCI protocols #15-C-0179 and #18-C-0056 Design: All needed data have already been collected. These data are stored in existing records and databases. Researchers will review the medical records of adults with cancer who were enrolled in the above protocols. The data collected will be relevant to the specific objectives being addressed. Data will be collected only if 2 conditions are met. One, the principal investigator gave permission for use of the data gathered in the trial. Two, the participants of the trial did not opt out of future use of the data. Other protocols may be added. This will be done with an amendment.

Rapid Analysis and Response Evaluation of Combination Anti-Neoplastic Agents in Rare Tumors (RARE CANCER) Trial: RARE 1 Nilotinib and Paclitaxel

Background: People with rare cancers often have limited treatment options. The biology of rare cancers is not well understood. Researchers want to find better treatments for these cancers. They want to test 2 drugs that, taken separately, have helped people with non-rare cancers. They want to see if these drugs together can make rare cancers shrink or stop growing. Objective: To learn if nilotinib and paclitaxel will benefit people with rare cancers. Eligibility: People age 18 and older who have a rare, advanced cancer that has progressed after receiving standard treatment, or for which no effective therapy exists. Design: Participants will be screened with medical history and physical exam. They will have blood and urine tests. They will have a pregnancy test if needed. They will have an electrocardiogram to check their heart. They will have imaging scans to measure their tumors. Participants will repeat the screening tests during the study. Participants will receive nilotinib and paclitaxel. The drugs are given in 28-day cycles. Nilotinib is a capsule taken by mouth twice a day. Paclitaxel will be given intravenously by peripheral line or central line once a week for the first 3 weeks of each cycle. Participants will keep a medicine diary. They will track when they take the study drugs and any side effects they may have. Participants may have optional tumor biopsies. Participants can stay on the study until their disease gets worse or they have intolerable side effects. Participants will have a follow-up phone call about 30 days after taking the last dose of study drugs.

Collection of Tissue Samples for Cancer Research

Background: -Patients who are being evaluated and/or treated at the NIH Clinical Center and adult patients at participating sites will be entered onto this tissue procurement protocol for collection of tissue specimens. Objectives: * To obtain samples from adult and pediatric patients for research purposes from tests and procedures that are done as required by the primary research protocol(s) to which a patient is enrolled or as part of their standard-of-care treatment. * To obtain samples for research purposes from non-surgical procedures, such as percutaneous biopsies, performed for the sole purpose of obtaining tissue specimens or biological fluids for this protocol. Eligibility: -Adult patients (18 years of age and older) and pediatric patients (younger than 18 years of age) who are being evaluated for and/or treated for cancer at the NIH Clinical Center participating sites. Design: * This is a multicenter tissue procurement protocol with NCI as the coordinating center. * For adult patients: specimens for research purposes, as outlined in this protocol, will be obtained from tests and procedures that are done as required by the primary research protocols to which a patient is enrolled or as part of their standard-of-care treatment. Non-surgical procedures, such as percutaneous biopsies, may also be performed for the sole purpose of obtaining tissue specimens or biological fluids for this protocol. Tissues and biological fluids to be procured may include but are not limited to blood, serum, urine, tumor tissue, normal tissue, pleural fluid, CSF, saliva, bronchial alveolar lavage (BAL), circulating tumor cells, hair follicles, and bone marrow. These specimens will be stored with unique identifiers and used to perform only those research studies that are outlined in this protocol. * For pediatric patients: tumor biopsy/resection tissue used for pediatric preclinical model development will only be from tissue already being obtained as part of a procedure necessary for the patient s clinical care or as part of a primary research protocol; blood specimens will be collected as part of a blood collection already scheduled for the patient s clinical care or as part of the planned pre-procedure bloodwork; volumes collected will not exceed institutional research limits. * Given the risks associated with any invasive procedure, such as tumor biopsy, the procedure will be discussed in detail with the patients and their parents/guardian (as indicated), including the side effects, prior to obtaining a separate consent for each procedure. A separate consent will not be signed prior to obtaining samples by minimally invasive measures, such as venipuncture. * This study has two separate consent forms at the NIH Clinical Center: one for adult patients to donate specimens for ongoing research on assay development and studies of molecular pathways, and one for adult and age-appropriate pediatric patients to donate samples for the generation of preclinical models. The study also has consent form templates for adult and pediatric patients at participating sites to donate specimens to create preclinical models. * Patients may remain on study for the duration of their consent or completion of the planned procedure, whichever comes first.

Data Collection, Clinical Care and Interventions in CCR, NCI

This study provides cancer care through the National Cancer Institute's Medical Oncology Branch (MOB) to patients who are not enrolled in an active treatment research protocol. Patients receive standard treatments only; no investigational therapies are provided on this protocol. Patients 18 years of age and older may be eligible for this protocol. Candidates are patients for whom an NCI investigator decides that the interests of the patient and the NCI are best served by the patient's enrollment in this protocol to receive care and follow-up within the MOB. This includes patients in the following categories: * Patients previously enrolled in NCI trials whose participation in this protocol may continue to provide researchers important scientific information * Patients who will be eligible for a research protocol within the foreseeable future * Patients whose medical welfare will be seriously compromised by referral back to the community, such as patients with a rare or complex disease for which community resources are inadequate or unavailable * Terminally ill patients who have received most of their specialized medical care at the Clinical Center and for whom humanitarian considerations dictate that they continue to receive their medical care at NIH after going off study for the remaining weeks or months of life * Patients with cancer or HIV, or people at risk for cancer or HIV for whom cancer treatments at the NCI are requested through the MOB consult service * Patients who are participating in a non-treatment NCI research protocol and require standard-of-care therapy * Patients with cancer or HIV or people at risk for cancer for whom cancer treatment or management at the NCI would add significant value to the institute's cancer training program Participants receive standard medical care, including periodic routine laboratory tests, diagnostic x-rays, and nuclear medicine scans to monitor the course of illness and the effects of any treatment.

Collection of Tissue Specimens From Patients With Solid Tumors or Blood Disorders and Their HLA-Compatible Family Members

This study will collect biological samples for use in research experiments aimed at better understanding the clinical features of certain diseases. The specimens may be used to evaluate the effectiveness of known therapies, refine treatment approaches, identify potential new therapies, and explore opportunities for disease prevention. The following individuals 2 years of age or older may be eligible for this study: * Patients with a cancerous solid tumor or a cancerous or non-cancerous blood disorder who are being screened for or who are enrolled in a treatment study at the NIH Clinical Center * HLA-compatible donor family members (18 years of age or older) of the above patients who are being evaluated for or are enrolled in an NIH study as a stem cell transplant donor * Patients with a cancerous solid tumor or a cancerous or non-cancerous blood disorder or a bone marrow failure condition who cannot participate in an NIH treatment protocol or travel to the NIH Clinical Center and who are referred for participation through their home health care provider. Research samples will be collected from participants when blood is drawn or bone marrow, urine, or stool is collected, or tumor or other tissue is biopsied as part of their general medical care. Investigators may periodically request an additional sample of blood, stool, or urine. Participants who are 18 years of age or older may donate a large number of white blood cells through a procedure called leukapheresis. This procedure is not part of general medical care and would be done for research purposes only. For apheresis, a catheter (plastic tube) is placed in a vein in the subject's arm. Blood flows from the vein into a cell separator machine, where the white cells are separated from the red cells, platelets, and plasma by a spinning process. The white cells are removed and collected, and the rest of the blood is returned to the subject through a second tube placed in the other arm.

Machine Learning to Analyze Facial Imaging, Voice and Spoken Language for the Capture and Classification of Cancer/Tumor Pain

Background: Cancer pain can have a very negative effect on people s daily lives. Researchers want to use machine learning to detect facial expressions and voice signals. They want to help people with cancer by creating a model to measure pain. They want the model to reflect diverse faces and facial expressions. Objective: To find out whether facial recognition technology can be used to classify pain in a diverse set of people with cancer. Also, to find out whether voice recognition technology can be used to assess pain. Eligibility: People ages 12 and older who are undergoing treatment for cancer Design: Participants will be screened with: Cancer history Information about their sex and skin type Information about their access to a smart phone and wireless internet Questions about their cancer pain Participants will have check-ins at the clinic and at home. These will occur over about 3 months. They will have 2-4 check-ins at the clinic. They will check in at home about 3 times per week. During check-ins, participants will answer questions and talk about their cancer pain. They will use a mobile phone or a computer with a camera and microphone to complete a questionnaire. They will record a video of themselves reading a 15-second passage of text and responding to a question. During the clinic check-ins, professional lighting, video equipment, and cameras will be used for the recordings. During remote check-ins, participants will be asked to complete the questionnaire and recordings alone. They should be in a quiet and bright room. The room should have a white wall or background. ...

Anti-Mesothelin TNaive/SCM hYP218 (TNhYP218) CAR T Cells in Participants With Mesothelin-Expressing Solid Tumors Including Mesothelioma

Background: Mesothelioma is an aggressive cancer that grows in the linings of the body; this can include the membranes that line the heart, lungs, and internal organs. Mesothelin (MSLN) is a protein that appears in high numbers in many tumors, including mesothelioma. Researchers are developing a new treatment that collects a person s own immune cells (T cells); the T cells are genetically modified to target and kill tumor cells with high levels of MSLN. Objective: To test a new treatment (TNhYP218 CAR T cells) in people with solid tumors including mesothelioma. Eligibility: People aged 18 and older with solid tumors including mesothelioma that returned or spread after standard treatment. Design: Participants will be screened. A small piece of tissue will be cut from a tumor (biopsy). The sample will be tested to see if it has enough MSLN. Participants will undergo leukapheresis: Blood will be taken from their body through a vein. The blood will pass through a machine that separates out the T cells. The remaining blood will be returned to the body through a different vein. Participant s T cells will be modified in a lab to produce TNhYP218 CAR T cells. Participants will enter the hospital. For 7 days, they will receive drugs to prepare their bodies for the study treatment. TNhYP218 CAR T cells will be administered into a vein. Participants will remain in the hospital for at least 7 more days. After discharge, participants will have follow-up visits for 5 years. These visits may include imaging scans, blood and heart tests, and a new biopsy. Long-term follow-up will continue another 10 years....

Clinical and Genetic Studies of Li-Fraumeni Syndrome

Background: \- Li-Fraumeni syndrome (LFS) is a genetic condition that increases the risk for some types of cancer. LFS may lead to cancer of the bone or connective tissue, breast, and brain. It may also increase the risk for certain types of leukemia and other cancers. The only known cause of LFS is a change (called a mutation ) in a gene known as TP53. However, not all people with LFS have a TP53 mutation. Researchers want to study other possible genetic causes of LFS, and factors that may increase or decrease cancer risk in people with the syndrome. Objectives: * To learn more about the types of cancers that occur in individuals with LFS. * To study the role of the TP53 gene in the development of cancer. * To look for other possible genes that cause LFS * To study the effect of LFS diagnosis on families. * To determine if environmental factors or other genes can change a person s cancer risk associated with LFS. Eligibility: * Individuals with a family or personal medical history of cancers consistent with LFS. * Individuals with a family or personal medical history of cancers that does not meet the diagnosis of LFS, but the history is suggestive for LFS (meets the diagnosis for the so-called Li-Fraumeni like syndrome) * Individuals with certain rare cancers * Individuals with a family or personal history of a TP53 gene mutation, with or without related cancer(s). Design: * Participants will fill out a medical history questionnaire and a family history questionnaire. * Blood samples will be collected for DNA and for storage. Cheek cell samples may be collected if blood cannot be obtained for DNA. Participants can choose to have or not have cancer screening with blood tests, imaging studies, and other exams. * Participants will complete questionnaires about their worries about cancer, stress levels, and coping strategies. Diet and physical activity questionnaires will also be given. Other psychological tests may be given as needed. * Participants will be monitored for several years, with regular followup visits to the National Institutes of Health, if indicated. Any changes in health or cancer status will be recorded.

Sample Collection and Tracking for the Developmental Therapeutics Clinic

Background: People who join a study in the Developmental Therapeutics Clinic (DTC) have tests. These include blood draws and biopsies. Researchers collect data from these samples. Some people take part in more than one study at the DTC. At this time, data are connected only with one single study. Researchers want to access people s medical records. This will allow them to link the research data from all their studies they have or will take part in. Researchers also want to collect medical data about their diagnosis and treatment history. This will allow them to see how their cancer reacted to different drugs over time. Objective: To enter people into a master protocol to connect research sample and treatment data across DTC studies. Eligibility: People ages 18 and older who are being evaluated or treated for cancer in the DTC Design: Participants will allow researchers to look at all the data from their research samples. This includes those from their current, past, and any future NIH studies. Participants will allow researchers to access some of their medical data. This includes age, diagnosis, treatment history, and response to treatment. Participants will provide no new samples. ...

Effectiveness of a Guided, Web-based, Stepped-care-approach to Cognitive Behavioral Therapy for Insomnia in Cancer Survivors

The goal of this multicenter randomized clinical trial is to develop and evaluate a web-based stepped-care approach to Cognitive Behavioral Therapy for Insomnia (CBT-I), specifically tailored to adult cancer survivors experiencing insomnia. Participants will be randomly assigned to one of three study arms: stepped-care web-based CBT-I (eSTEPCBT-I), standardized web-based CBT-I (eSTANDCBT-I), or care as usual (CAU). The study aims to determine whether a stepped-care approach can improve access to effective insomnia treatment while maintaining clinical effectiveness and cost-effectiveness.

HR20013 for the Prevention of Nausea and Vomiting in Patients With Cancer: A Real-World Study

HR20013 is a newly approved medicine in China to prevent nausea and vomiting from anticancer treatment. This prospective, observational, multicenter real-world study will enroll about 3,000 patients receiving this medicine as routine care at over 30 hospitals in China, including 100 with mild to moderate hepatic impairment. Following usual clinical practice, it will evaluate how well the medicine prevents nausea and vomiting and its safety to guide clinical use.

A Study of E7386 in Combination With Other Anticancer Drug(s) in Participants With Solid Tumor

The primary objective of this study is to assess the safety and tolerability and to determine the recommended Phase 2 dose (RP2D) of E7386 in combination with other anticancer drug(s), and to determine the optimal dose of E7386 in combination with lenvatinib in endometrial carcinoma (EC) (for EC Dose Optimization Part only).

A Study to Test BI 765179 Alone and in Combination With Ezabenlimab in Patients With Advanced Cancer (Solid Tumors) and BI 765179 in Combination With Pembrolizumab in Patients With Advanced Head and Neck Cancer

This study is open to adults with advanced cancer (solid tumors) and people with advanced head and neck cancer. The study has 2 parts. The purpose of Part 1 of this study is to find the highest dose of a medicine called BI 765179 that people with solid tumors can tolerate when taken alone or together with a medicine called ezabenlimab. The goal of Part 2 is to find out whether BI 765179 in combination with a medicine called pembrolizumab helps people with advanced head and neck cancer. In Part 1, each participant is put into 1 of 2 groups. Participants get BI 765179 alone or in combination with ezabenlimab as infusion into a vein every 3 weeks. In Part 2, participants are also divided into 2 groups. 1 group gets a low dose of BI 765179 in combination with pembrolizumab and the other group gets a high dose of BI 765179 in combination with pembrolizumab. Participants receive the study treatment as infusions into a vein. BI 765179, ezabenlimab, and pembrolizumab are antibodies that may help the immune system fight cancer. In this study, BI 765179 is given to people for the first time. Participants can stay in the study up to 2 years if they benefit from treatment and can tolerate it. The doctors regularly check the participants' health and note any health problems that could have been caused by the study treatment.

Study of Abemaciclib and Elacestrant in Participants With Brain Metastasis Due to ER+/HER-2- Breast Cancer

This is a multi-site, global, open-label study that includes a phase 1b evaluation of elacestrant in combination with abemaciclib in women and men with brain metastases from estrogen receptor (ER)-positive, human epidermal growth factor receptor-2 (HER-2) negative breast cancer. Phase 1b was designed to select the recommended phase 2 dose (RP2D) and is followed by an ongoing phase 2 evaluation of elacestrant in combination with abemaciclib in participants with active brain metastases from ER-positive, HER-2 negative breast cancer.

Animal-Assisted Intervention for Children With Cancer and Their Siblings

This study examined an animal-assisted program for children with hematologic or oncologic disease and their siblings. The program included ten weekly sessions involving dogs and donkeys. Children allocated to the program were compared with children on a waiting list. Assessments were conducted before the program, approximately 15 days after the last session, and approximately two months after the last session. The study assessed children's reported life events, emotional indicators in human figure drawings, family relationships, and parents' coping styles. Waiting-list participants were offered the program after their own final follow-up assessment. This study is being registered retrospectively, after study completion and analysis.

A Rollover Study of Alectinib in Patients With Anaplastic Lymphoma Kinase (ALK)-Positive or Rearranged During Transfection (RET)-Positive Cancer

The purpose of this study is to provide continued treatment with alectinib or crizotinib as applicable to participants with ALK- or RET positive cancer who were previously enrolled in any Roche-sponsored alectinib study and who are deriving continued clinical benefit from alectinib or crizotinib in the parent trial at the time of parent trial closure.

A Study to Evaluate LY3537021 for the Treatment of Nausea and Vomiting Caused by Chemotherapy in Adults With Cancer

The purpose of this study is to check how well LY35327021 works and how safe it is for controlling nausea and vomiting caused by chemotherapy. Participants who join this study will be in it until all parts are finished, which could take about 2 months.

Phase I Trial of 4'-Thio-2'-Deoxycytidine (TdCyd) in Patients With Advanced Solid Tumors

Background: \- Genes are made up of DNA and are the instruction book for cells. When people have cancer, some of the genes that might have slowed the growth of tumor cells were turned off. Researchers think a drug called TdCyd might help to turn these genes back on. This may slow the growth of tumors in people with cancer. Objectives: \- To test the safety of TdCyd and to find out how it works. Also, to find out the dose of the drug that can be safely given to humans. Eligibility: \- Adults 18 years and older who have advanced cancer that has progressed after standard treatment, or for which no effective therapy exists. Design: * Participants will take TdCyd by mouth. The drug is given in 21-day cycles. TdCyd is taken once a day during week 1 for 5 days. Then for 2 days participants do not take the drug. Then they take it for 5 days during week 2. No TdCyd is taken during week 3. * Participants will keep a diary of their study drug doses. * Participants will have tests about every 3 weeks to see how the study drugs are affecting their body. They will have blood and urine tests, a medical history, and physical exams. They may have computed tomography (CT) scans to measure their tumors. They may have an electrocardiogram, which measures the heart electrical activity. * If participants develop any side effects, they may be asked to visit more often. * Participants will stay in the study as long as they are tolerating TdCyd and their tumors are either stable or getting better. One month after stopping the drug, they will have a follow-up phone call.