Treatment Trials

69 Clinical Trials for Various Conditions

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RECRUITING
Somatostatin-Receptors (SSTR)-Agonist [212Pb]VMT-alpha-NET in Metastatic or Inoperable SSTR+ Gastrointestinal Neuroendocrine Tumor and Pheochromocytoma/Paraganglioma Previously Treated With Systemic Targeted Radioligand Therapy
Description

Background: Gastrointestinal neuroendocrine tumors (GI NET) are a type of cancer that affects the stomach and intestines; pheochromocytoma/paragangliomas (PPGL) are tumors that grow in or near the adrenal glands. Both of these types of tumor have high levels of a protein called somatostatin receptors (SSTR) on their surfaces. Researchers want to test a treatment that targets SSTR. Objective: To test a drug (\[212Pb\]VMT-alpha-NET) in people with GI NET or PPGL. The drug has 2 components: a protein to bind to SSTR and a radioactive agent to kill the cancer cells. Eligibility: Adults aged 18 years or older with GI NET or PPGL tumors that have spread and cannot be removed with surgery. Design: Participants will be screened. They will have a physical exam, with imaging scans, blood tests, and tests of their heart function. \[212Pb\]VMT-alpha-NET is given through a tube attached to a needle inserted into a vein (infusion). Treatment will be given in four 8 week cycles. Participants will receive the drug on the first day of each cycle. They will remain in the clinic at least 4 hours after each infusion and may need to stay in the hospital for up to 48 hour for monitoring and testing. They will have blood tests every week of each cycle. Some participants will also get a related study drug (\[203Pb\]VMT-alpha-NET). They will receive this drug a few days before the first 2 cycles. At 4, 24, and 48 hours after each infusion, they will have whole body scans. These scans will show where the study drug went in their body. Follow-up visits will continue for 10 years....

RECRUITING
In Vivo PARP-1 Expression With 18F-FluorThanatrace PET/CT in Patients With Pheochromocytoma and Paraganglioma
Description

This study will enroll up to 30 evaluable patients with pheochromocytoma or paraganglioma who are undergoing surgical or systemic treatment. A pre-treatment 18F-FluorThanatrace (\[18F\]FTT) positron emission tomography/computed tomography (PET/CT) scan will be done prior to surgery or systemic therapy. PET/CT imaging will be used to evaluate PARP-1 expression in sites of pheochromocytoma or paraganglioma using the investigational radiotracer \[18F\]FTT. This is an observational study in that \[18F\]FTT PET/CT will not be used to direct treatment decisions. While patients and referring physicians will not be blinded to the \[18F\]FTT PET/CT results, treatment decisions will be made by the treating physicians based upon clinical criteria.

WITHDRAWN
Phase-II Study of Lu177DOTATOC in Adults With STTR(+)Pulmonary, Pheochromocytoma, Paraganglioma, Unknown Primary, Thymus NETs (PUTNET), or Any Other Non-.GEP-NET.
Description

Determine the safety and effectiveness of Lu-177 DOTATOC in adult subjects with somatostatin receptor-expressing Pulmonary, Pheochromocytoma, Paraganglioma, Unknown primary, and Thymus neuroendocrine tumors or any other non-.GEP-NET. The treatment regimen will consist of 4 doses of 200 (±10%) mCi 177Lu-DOTATOC administered at 8+/- 1-week intervals.

TERMINATED
A Novel Therapeutic Vaccine (EO2401) in Metastatic Adrenocortical Carcinoma, or Malignant Pheochromocytoma/Paraganglioma
Description

This is a multicenter, Phase 1/2, First-In-Human study to assess the safety, tolerability, immunogenicity, and preliminary efficacy of EO2401 in Metastatic Adrenocortical Carcinoma, or Malignant Pheochromocytoma/Paraganglioma.

ACTIVE_NOT_RECRUITING
LAnreotide in Metastatic Pheochromocytoma / PARAganglioma (LAMPARA)
Description

The objectives of this study are: * To assess the efficacy of lanreotide given every 4 weeks in participants with advanced or metastatic paraganglioma/ pheochromocytoma. * To assess the toxicity and safety of lanreotide in participants with advanced or metastatic paraganglioma/ pheochromocytoma. * To document the effects of lanreotide on markers of biochemical activity in participants with advanced or metastatic paraganglioma/ pheochromocytoma. Primary endpoints: • Assess efficacy by estimating the tumor growth rate while a patient is enrolled on study and comparing the growth rates on lanreotide to the pre-enrolment growth rate. Secondary endpoints include measurement of: * Overall survival (OS) * Progression-free survival (PFS) * Overall response rate (ORR) according to RECIST defined as partial response (PR) + complete response (CR) * Magnitude of reduction in levels of 24-hour urinary metanephrines, catecholamines and magnitude of reduction in serum chromogranin A, evaluated every two months while enrolled on study.

ACTIVE_NOT_RECRUITING
Study of Axitinib (AG-013736) With Evaluation of the VEGF-pathway in Pheochromocytoma/Paraganglioma
Description

Primary Objective: To determine the response rate (RR) of metastatic or locally advanced pheochromocytoma/paraganglioma to axitinib administered daily. Secondary Objectives: * Determine the progression-free survival. * In an exploratory manner examine the extent of activation of the VEGFR pathway in pheochromocytoma/paraganglioma using a semi-quantitative immunohistochemistry assay and examine the relationship with response to therapy. * Perform pharmacogenomics analyses of drug metabolism and transport proteins through germline DNA examination.

RECRUITING
18F-Fluorodopamine PET Studies of Neuroblastoma and Pheochromocytoma
Description

PET (positron emission tomography) scans combined with a radioactive tracer will be used to identify and analyze tumors. Currently, the most common tracer used to analyze neuroblastoma tumors is called 123I-mIBG. However, the picture it provides is not always clear enough to see the very small areas of the disease. 18F-DA (18F-fluorodopamine) has been shown to be safe and more effective than 123I-mIBG in analyzing the tumor pheochromocytoma, which is closely related to neuroblastoma. With this research study, the investigators plan to meet the following goals: * Investigate to see if 18F-DA is safe to administer to pediatric patients with known or suspected neuroblastoma or pheochromocytoma * Examine where in the body 18F-DA goes. * Obtain information comparing 18F-DA to 123I-mIBG to see if 18F-DA could replace 123I-mIBG in the future. About 20 people, with known or suspected neuroblastoma or pheochromocytoma, will take part in this Pilot study at St. Jude.

RECRUITING
Lu-177-DOTATATE (Lutathera) in Therapy of Inoperable Pheochromocytoma/ Paraganglioma
Description

Background: Pheochromocytoma and paraganglioma are rare tumors. They usually form inside and near the adrenal gland or in the neck region. Not all these tumors can be removed with surgery, and there are no good treatments if the disease has spread. Researchers think a new drug may be able to help. Objective: To learn the safety and tolerability of Lu-177-DOTATATE. Also, to see if it improves the length of time it takes for the cancer to return. Eligibility: Adults who have an inoperable tumor of the study cancer that can be detected with Ga-68-DOTATATE PET/CT imaging Design: Participants will be screened with a medical history, physical exam, and blood tests. Eligible participants will be admitted to the NIH Clinical Center. Participants will get the study drug in an intravenous infusion. They will get 4 doses, given about 8 weeks apart. Between 4 and 24 hours after each study drug dose, participants will have scans taken. They will lie on their back on a scanner table. Participants will have vital signs taken. They will give blood and urine samples. During the study, participants will have other scans taken. Some scans will use a radioactive tracer. Participants will complete quality of life questionnaires. Participants will be contacted by phone 1-3 days after they leave the Clinical Center. They will then be followed every 3 to 6 months for 3 years or until their disease gets worse.

COMPLETED
Preoperative Alpha Blockade for Pheochromocytoma
Description

Pheochromocytoma is a rare, catecholamine (ex. adrenaline) secreting tumor that requires preoperative alpha blockade to minimize intraoperative hemodynamic instability, thereby reducing intra- and postoperative morbidity and mortality. Phenoxybenzamine is a non-selective alpha blocker that is significantly more expensive and is associated with increased adverse effects in comparison with selective alpha blockers such as doxazosin. Retrospective studies show minimal differences in hemodynamic instability and no differences in postoperative morbidity and mortality between selective vs. non-selective alpha blockers. This study is a randomized controlled trial that will compare hemodynamic instability, morbidity, mortality, cost, and quality of life between patients blocked with phenoxybenzamine vs. doxazosin.

TERMINATED
A Phase II Trial of the DNA Methyl Transferase Inhibitor, Guadecitabine (SGI-110), in Children and Adults With Wild Type GIST,Pheochromocytoma and Paraganglioma Associated With Succinate Dehydrogenase Deficiency and HLRCC-associated Kidney Cancer
Description

Background: Wild-type gastrointestinal stromal tumor (GIST) is a cancer in the esophagus, stomach, or intestines. It does not respond well to standard chemotherapy or radiation therapy. Most people with GIST are treated with imatinib. But it may not work in many children with GIST. Researchers think the drug SGI-110 may help treat people with GIST, pheochromocytoma and paraganglioma (PHEO/PGL), or kidney cancer related to hereditary leiomyomatosis and renal cell carcinoma (HLRCC). Objective: To learn if SGI-110 causes GIST tumors to shrink or slows their growth. Also to test how it acts in the body. Eligibility: People ages 12 and older who have GIST, PHEO/PGL, or HLRCC that has not responded to other treatments Design: Participants will be screened with: * Physical exam * Urine tests * Computed tomography (CT) or magnetic resonance imaging (MRI), or fluorodeoxyglucose (FDG)-positron emission tomography (PET) scan: A machine takes pictures of the body. * Blood tests Participants will be injected with SGI-110 under the skin each day for 5 days. This cycle will repeat every 28 days. The cycles repeat until their side effects get too bad or their cancer gets worse. Participants will have tests throughout study: * Physical exam and blood and urine tests before each cycle * Blood tests on days 1, 7, 14, and 28 of the first cycle. * Scans before cycle 1 and then every other cycle. * Questionnaires about their pain and quality of life * Tumor biopsy for those 18 and older: A needle removes a small piece of tumor. After they stop treatment, participants will have a final visit. This includes an evaluation of their health, pain, and quality of life. ...

RECRUITING
Genetic Analysis of Pheochromocytomas, Paragangliomas and Associated Conditions
Description

Pheochromocytomas and paragangliomas are neural crest-derived tumors of the nervous system that are often inherited and genetically heterogeneous. Genetic screening is recommended for patients and their relatives, and can guide clinical decisions. However, a mutation is not found in all cases. The aims of this proposal are to: 1) to map gene(s) involved in pheochromocytoma, and 2) identify genotype-phenotype correlations in patients with pheochromocytoma/paraganglioma of various genetic origins.

AVAILABLE
A Compassionate Use/Expanded Access Protocol Using 131I-MIBG Therapy for Patients With Refractory Neuroblastoma and Metastatic Pheochromocytoma
Description

This is an expanded access protocol/compassionate use single institution study designed to determine the palliative benefit and toxicity of 131I-MIBG in patients with progressive neuroblastoma and metastatic pheochromocytoma who are not eligible for therapies of higher priority. Response rate, toxicity, and time to progression and death will be evaluated.

APPROVED_FOR_MARKETING
Expanded Access Program of Ultratrace Iobenguane I131 for Malignant Relapsed/Refractory Pheochromocytoma/Paraganglioma
Description

The purpose of this sub-study is to provide expanded access of AZEDRA (Ultratrace Iobenguane I 131) and to evaluate the safety and tolerability of AZEDRA in subjects with iobenguane-avid malignant and/or recurrent pheochromocytoma/paraganglioma (PPGL).

COMPLETED
Phase II Study of Axitinib (AG-013736) With Evaluation of the VEGF-pathway in Metastatic, Recurrent or Primary Unresectable Pheochromocytoma/Paraganglioma
Description

Background: * Most treatments for malignant pheochromocytomas/paragangliomas (PHEO/PGL) are palliative and multidisciplinary. Chemotherapy using the combination of cyclophosphamide, vincristine, and dacarbazine has been successfully utilized in the management of rapidly progressive metastatic PHEO, with more than 50% complete or partial tumor response and more than 70% complete or partial biochemical response. * Vascular endothelial growth factor (VEGF) expression and evidence of angiogenesis has been found in many PHEO/PGL, so it is plausible that interfering with VEGF signaling may result in anti-tumor activity in patients with PHEO/PGL. * Axitinib (AG-013736) is an oral, potent and selective inhibitor of vascular endothelial growth factor (VEGF) receptors 1, 2, and 3. Pre-clinical data suggests that the anti-tumor activity of axitinib may result from its anti-angiogenic activity and that this is reversible when treatment is discontinued. * Given the known clinical safety and efficacy of axitinib, an assessment of its activity in PHEO/PGL and its impact on the VEGF pathway in PHEO/PGL could provide valuable information. Objectives: * Determine the response rate of metastatic PHEO/PGL to axitinib (AG-013736). * Determine the progression-free survival of metastatic PHEO/PGL treated with axitinib (AG-013736). * Explore the relationship of potential biological markers of axitinib activity with clinical outcomes. * Perform pharmacogenomics analyses of drug metabolism and transport proteins through germline deoxyribonucleic acid (DNA) examination. Eligibility: * Adults with a confirmed pathologic diagnosis of PHEO/PGL by the Laboratory of Pathology, National Cancer Institute (NCI) * Biochemical evidence of PHEO/PGL * Imaging confirmation of metastatic, locally advanced or unresectable disease. * Measurable disease at presentation * Eastern Cooperative Oncology Group (ECOG) performance status less than or equal to 2 * Patients must not have received prior therapy with a tyrosine kinase (TK) inhibitor Design: * Phase II, open label, non-randomized trial * Patients with metastatic pheochromocytoma/paraganglioma will receive axitinib (AG-013736 twice a day (BID)) in eight-week cycles * Patients will be evaluated for response every eight weeks using Response Evaluation Criteria in Solid Tumors (RECIST) criteria * Tumor biopsies are not mandatory but every attempt will be made to obtain these from patients prior to starting axitinib and again 20 - 30 days after treatment has begun. * Approximately 12 to 37 patients will be needed to achieve the objectives of the trial

SUSPENDED
MIBG for Refractory Neuroblastoma and Pheochromocytoma
Description

This is a best available therapy/compassionate use single institution study designed to determine the palliative benefit and toxicity of 131I-MIBG in patients with progressive neuroblastoma and metastatic pheochromocytoma who are not eligible for therapies of higher priority. Patients may receive a range of doses depending on stem cell availability and tumor involvement of bone marrow. Response rate, toxicity, and time to progression and death will be evaluated.

NO_LONGER_AVAILABLE
Expanded Access Protocol Using 131I-MIBG Therapy +/- Vorinostat for Refractory Neuroblastoma, Pheochromocytoma, or Paraganglioma
Description

Currently there is no known effective treatment for patients with advanced stage neuroblastoma who have relapsed or not responded to standard therapy. There is also no known effective treatment for patients with pheochromocytoma or paraganglioma who are less than 12 years of age. In previous studies that used 131I-MIBG as a potential anti-cancer therapy, a decrease in the size of tumors was seen in some of the children and adults. This research study will continue to evaluate the side effects of 131I-MIBG +/- Vorinostat when treating children and adults with neuroblastoma, pheochromocytoma, or paraganglioma. The 131I-MIBG compound is intended to work by selectively delivering the radioactive iodine to the tumor cells, which is then intended to result in their destruction. The purpose of this research study is to: * Make 131I-MIBG therapy available to patients with advanced neuroblastoma, pheochromocytoma, or paraganglioma * Further assess the side effects of 131I-MIBG therapy

COMPLETED
A Phase II Study of 131I- Metaiodobenzylguanidine (MIBG) for Treatment of Metastatic or Unresectable Pheochromocytoma and Related Tumors
Description

This is an ongoing prospective Phase II clinical trial evaluating the efficacy of 131I-MIBG for the treatment of patients with metastatic or unresectable pheochromocytoma and related tumors.

APPROVED_FOR_MARKETING
Compassionate Use of 131I-MIBG for Patients With Malignant Pheochromocytoma
Description

This is a compassionate use protocol to allow palliative therapy for patients with malignant pheochromocytoma and paragangliomas.

COMPLETED
A Broad Multi-histology Phase II Study of the Multi-Kinase Inhibitor R935788 (Fostamatinib Disodium) in Advanced Colorectal, Non-small Cell Lung, Head and Neck Hepatocellular and Renal Cell Carcinomas, and Pheochromocytoma and Thyroid Tumors (Multi-H...
Description

Background: * The drug R935788 (fostamatanib disodium) is a kinase inhibitor (i.e., it interferes with cell communication and growth and may prevent tumor growth). * R935788 has shown promising activity in NCI-60 (a panel of 60 diverse human cancer cell lines) against colon cancer, non-small cell lung cancer, and renal cell carcinoma cell lines, as well as in two renal cell xenograft models. * This is an open-label, Phase II study of R935788. Phase I studies in patients with immune thrombocytopenic purpura, rheumatoid arthritis, and lymphoma have demonstrated safety with a continuous dosing schedule, and a maximum tolerated dose has been established. Objectives: * To test an experimental drug called R935788 (fostamatinib disodium) for its ability to stop cancer growth signals, thus slowing the growth of cancer cells in laboratory testing. * To determine the clinical response of R935788 administered orally twice a day on a continuous schedule in patients with colorectal carcinoma, pheochromocytoma, follicular or papillary thyroid cancer, non-small cell lung cancer, hepatocellular, carcinoma of the head and neck, and renal cell carcinoma. * To evaluate the effects, safety, and biochemical response of R935788 therapy. Eligibility: * Patients with colorectal carcinoma, pheochromocytoma, follicular or papillary thyroid cancer, non-small cell lung cancer (excluding squamous cell histology), hepatocellular cancer, carcinoma of the head and neck, and renal cell carcinoma whose disease has progressed after any therapy or who have no acceptable standard treatment options. * Patients must have recovered from toxicities of prior therapies to at least eligibility levels. * Patients who have received radiation or chemotherapy within 4 weeks of study enrollment are not eligible. * Women who are pregnant or breastfeeding are not eligible. Design: * Researchers will conduct the following tests and procedures during the study: * Clinic visits with a physical exam, including vital signs and blood pressure, every other week during cycle 1, and once a month starting with cycle 2. * Blood will be drawn weekly during cycle 1, every other week during cycle 2, and once a month starting with cycle 3; urine tests will be conducted depending on results of blood tests. * Imaging tests, such as computed tomography (CT) scans (a series of x-rays) or ultrasound (an examination using sound waves), will be done every 8 weeks while the patient is receiving R935788. * R935788 will be administered orally twice a day for 28 days (one cycle). Imaging studies will be obtained every two cycles. Patients will fill in a diary to show when they took the medication and to note any side effects. The 28-day treatment cycle will be repeated as long as the patient is tolerating R935788 and the cancer is either stable or getting better. * Researchers will conduct the following additional tests to see how the study is affecting the patient: * Other research blood samples will be collected before treatment, at cycle 1 week 3, at the beginning of cycle 2, and at 8 weeks. * Optional tumor biopsies will be requested before starting treatment, at cycle 1 day 28. * Patients with specific lesions or tumors may be asked for an optional tumor biopsy on day 8.

TERMINATED
Content Validation of Quality of Life and Symptom Questionnaires for Pheochromocytoma and Paraganglioma
Description

The purpose of this qualitative study is to evaluate the clarity and comprehensiveness of two disease-specific questionnaires, and to evaluate how effective these questionnaires are at assessing the quality of life and symptoms of patients with pheochromocytoma or paraganglioma.

UNKNOWN
A Study Evaluating Ultratrace Iobenguane I131 in Patients With Malignant Relapsed/Refractory Pheochromocytoma/Paraganglioma
Description

This clinical trial is designed to evaluate the effectiveness and collect additional safety information on AZEDRA® (iobenguane I 131) for the treatment of metastatic or relapsed/refractory (to other treatment) or unresectable pheochromocytoma or paraganglioma. The purpose of this trial is to test the use of AZEDRA® as a treatment for pheochromocytoma and paraganglioma, a rare disease. This Phase II study will help determine primarily if using the drug reduces the amount of blood pressure medication being taken as a result of the cancer and secondarily to determine such things as the effectiveness of the study drug in treating the cancer, additional safety measures, and to assess if the drug helps the quality of life and use of pain medication. All subjects will receive an imaging dose with scans followed by two therapeutic doses given approximately 3 months apart.

COMPLETED
Phase 1 Study of Iobenguane (MIBG) I 131 in Patients With Malignant Pheochromocytoma/Paraganglioma
Description

The purpose of this study is to determine whether iobenguane I 131 is safe and effective in patients with malignant pheochromocytoma or paraganglioma.

RECRUITING
Iodine I 131 Metaiodobenzylguanidine in Treating Patients With Recurrent, Progressive, or Refractory Neuroblastoma or Malignant Pheochromocytoma or Paraganglioma
Description

The purpose of this research study is to find how active and safe 131 I-MIBG is in patients with resistant neuroblastoma, malignant pheochromocytoma and malignant paraganglioma.

COMPLETED
131MIBG to Treat Malignant Pheochromocytoma
Description

This study will evaluate the effectiveness of 131MIBG in treating malignant pheochromocytoma and whether sensitization medications improve the response to treatment. Pheochromocytoma is a rare type of tumor that usually occurs in the adrenal glands. The tumor cells release chemicals like adrenaline that can cause large increases in blood pressure and pulse rate, with serious health consequences. Tumor in the adrenal glands usually can be removed surgically, but if the pheochromocytoma is malignant-i.e., has spread to many sites in the body-or is located in places where surgery is difficult or impossible, no satisfactory treatment is available. 131MIBG is a combination of an adrenaline-like chemical and a radioactive form of iodine. The 131MIBG attaches to the tumor cells and the high concentration of radioactive iodine kills them. Previous studies using 131MIBG to treat pheochromocytoma had a 36% response rate in terms of complete or partial improvement. This study will examine whether adding other sensitization medications to the 131MIBG treatment regimen will enhance its effectiveness in reducing the size and number of tumors. Patients 18 years of age and older with malignant or inoperable pheochromocytoma may be eligible for this 18-month study. Candidates will be screened with various tests and procedures, which may include a medical history, physical examination, blood and urine tests, lung function studies, electrocardiogram, echocardiogram, computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), and bone scans and other scans using radioactive MIBG and octreotide. Participants will be randomly assigned to one of two treatment groups: 1) 131MIBG plus sensitization medications, or 2) 131MIBG alone. All patients will be hospitalized 3 to 5 days for each 131MIBG treatment. The drug will be infused through a vein (intravenously, or I.V.) over 10 to 30 minutes. Patients will receive up to 3 treatments, separated by at least 3 months. All patients will also take potassium to protect the thyroid gland from radioactive iodine generated by the 131MIBG. The potassium is taken twice a day for 30 days, beginning the day before the 131MIBG treatment. Patients in the sensitization group will receive the following additional drugs for sensitization: methylprednisolone, intravenously a few minutes before 131MIBG treatment; Roaccutan, by mouth (capsules) twice a day for 6 weeks before treatment; Demser, by mouth 3 times a week for 1 week before treatment, and Carbidopa, by mouth every 6 hours for 4 days before treatment. After each treatment, patients will have a clinical evaluation and periodic blood tests to check for adverse side effects of radiotherapy. Follow-up visits at NIH will be scheduled at 12 and 18 months after the first 131MIBG treatment for clinical, laboratory and imaging tests. Patients who had tumors in the lungs before treatment will have lung function tests 1, 3, and 6 months after each treatment. CT, MRI 131MIBG, and PET scanning will be done 1 week before each treatment. Patients who have tumors that have grown by more than 25% and none that have shrunk by more than 50% or who have developed one or more new tumors while on 131MIBG treatment will be taken off the study.

RECRUITING
Diagnosis of Pheochromocytoma
Description

The goal of this study is to develop better methods of diagnosis, localization, and treatment for pheochromocytomas. These tumors, which usually arise from the adrenal glands, are often difficult to detect with current methods. Pheochromocytomas release chemicals called catecholamines, causing high blood pressure. Undetected, the tumors can lead to severe medical consequences, including stroke, heart attack and sudden death, in situations that would normally pose little or no risk, such as surgery, general anesthesia or childbirth. Patients with pheochromocytoma may be eligible for this study. Candidates will be screened with a medical history and physical examination, electrocardiogram, and blood and urine tests. Study participants will undergo blood, urine, and imaging tests, described below, to detect pheochromocytoma. If a tumor is found, the patient will be offered surgery. If surgery is not feasible (for example, if there are multiple tumors that cannot be removed), evaluations will continue in follow-up visits. If the tumor cannot be found, the patient will be offered medical treatment and efforts to detect the tumor will continue. Main diagnostic and research tests may include the following: 1. Blood tests - mainly measurements of plasma or urine catecholamines and metanephrines as well as methoxytyramine. If necessary the clonidine suppression test can be carried out. 2. Standard imaging tests - Non-investigational imaging tests include computed tomography (CT), magnetic resonance imaging (MRI), sonography, and 123I-MIBG scintigraphy and FDG (positron emission tomography) PET/CT. These scans may be done before and/or after surgical removal of pheochromocytoma. 3. Research PET scanning is done using an injection of radioactive compounds. Patients may undergo 18F-FDOPA, 18F-DA, as well as 68Ga-DOTATATE PET/CT . Each scan takes up to about 2 hours. 4. Genetic testing - A small blood sample is collected for DNA analysis and other analyses.

COMPLETED
Diagnosis and Treatment of Pheochromocytoma
Description

Pheochromocytoma is a tumor of the adrenal gland. This tumor is typically benign (not cancerous) and can be cured by surgical removal. However, pheochromocytomas produce neurohormones called cateholamines (epinephrine and norepinephrine). High levels of catecholamines can result in high blood pressure, headaches, sweating, heart palpitations, nausea, vomiting, and other symptoms. These tumors are considered dangerous because of their unpredictable behavior. Patients with pheochromocytoma may experience blood pressures high enough to cause a stroke or heart attack in patients. This study is designed to take patients suspected of having pheochromocytoma and confirm the diagnosis. This will be done using a variety of laboratory tests including a clonidine suppression test and glucagon stimulation test. These tests use drugs that can stimulate or reduce the activity of the tumor if it is present in the body. Once a diagnosis is confirmed, patients participating in this study will undergo standard procedures to find the exact location of the tumor and receive standard therapy for the condition.

NOT_YET_RECRUITING
[212Pb]VMT-Alpha-NET in Metastatic or Inoperable Somatostatin-Receptor Positive Gastrointestinal Neuroendocrine Tumors, Pheochromocytoma/Paragangliomas, Small Cell Lung, Renal Cell, and Head and Neck Cancers
Description

Background: Some cancers have high levels of proteins called somatostatin receptors (SSTRs) on the surface of the tumors. These tumors can be in the lung, head and neck, digestive tract, kidneys, and in or near the adrenal glands. Researchers want to know if drug treatments that target SSTRs can help shrink these types of tumors. Objective: To test a study drug (\[212Pb\]VMT-Alpha-NET) in people with tumors that have SSTRs. Eligibility: People aged 18 years and older with tumors of the lung, kidneys, head and neck, digestive tract, or adrenal glands that have SSTRs. Their tumors must have spread to other organs and cannot be removed with surgery. Design: Participants will be screened. They will have a physical exam with blood and urine tests. They will have imaging scans and a test of their heart function. A sample of tumor tissue may be collected if one is not already available. \[212Pb\]VMT-Alpha-NET is given through a tube attached to a needle inserted into a vein. The drug will be given on the first day of four 8-week cycles. Participants will stay in the hospital for a few nights after each dose. They will have blood tests once a week during each cycle. Some participants will also get a related study drug (\[203Pb\]VMT-Alpha-NET). They will receive this drug a few days before the first 2 cycles. At 4, 24, and 48 hours after each infusion, they will have whole body scans. These scans will show where the study drug went in their body. Follow-up visits will continue up to 6 years after the last treatment.

RECRUITING
Belzutifan/MK-6482 for the Treatment of Advanced Pheochromocytoma/Paraganglioma (PPGL), Pancreatic Neuroendocrine Tumor (pNET), Von Hippel-Lindau (VHL) Disease-Associated Tumors, Advanced Gastrointestinal Stromal Tumor (wt GIST), or Solid Tumors With HIF-2α Related Genetic Alterations (MK-6482-015)
Description

This is a study to evaluate the efficacy and safety of belzutifan monotherapy in participants with advanced pheochromocytoma/paraganglioma (PPGL), pancreatic neuroendocrine tumor (pNET), von Hippel-Lindau (VHL) disease-associated tumors, advanced wt (wild-type) gastrointestinal stromal tumor (wt GIST), or advanced solid tumors with hypoxia inducible factor-2 alpha (HIF-2α) related genetic alterations. The primary objective of the study is to evaluate the objective response rate (ORR) of belzutifan per response evaluation criteria in solid tumors version 1.1 (RECIST 1.1) by blinded independent central review (BICR).

COMPLETED
Lenvatinib in Treating Patients With Metastatic or Advanced Pheochromocytoma or Paraganglioma That Cannot Be Removed by Surgery
Description

This phase II trial studies how well lenvatinib works in treating patients with pheochromocytoma or paraganglioma that has spread to other places in the body or cannot be removed by surgery. Lenvatinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

COMPLETED
Cabozantinib S-malate in Treating Patients with Metastatic Pheochromocytomas or Paragangliomas That Cannot Be Removed by Surgery
Description

This pilot phase II trial studies how well cabozantinib s-malate works in treating patients with pheochromocytomas or paragangliomas that have spread from the primary site to other places in the body and cannot be removed by surgery. Cabozantinib s-malate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking the growth of new blood vessels necessary for tumor growth.