Active clinical trials for "Adenoma, Islet Cell"

This is a Phase II study in 2 stages, evaluating BEZ235 plus best supportive care (BSC) versus placebo plus BSC in patients with advanced pancreatic neuroendocrine tumors (pNET) after failure of mTOR inhibitor therapy. Study design: This was a Phase II, two-stage, multicenter study, where Stage 1 was a single arm, open label design and Stage 2 was planned to be a randomized, double-blind study. However, at the end of Stage 1, the futility was met and hence the Stage 2 was not initiated.

This randomized phase II trial studies how well everolimus and octreotide acetate with or without bevacizumab works in treating patients with pancreatic neuroendocrine tumors that cannot be removed by surgery and have spread nearby or to other places in the body. Everolimus may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Octreotide acetate may interfere with and slow the growth of tumor cells. Monoclonal antibodies, such as bevacizumab, may interfere with the ability of tumor cells to grow and spread. Bevacizumab and everolimus also may stop the growth of pancreatic neuroendocrine tumors by blocking blood flow to the tumor. It is not yet known whether giving everolimus and octreotide acetate together is more effective with or without bevacizumab in treating pancreatic neuroendocrine tumors.

The purpose of this study is to decide if a medicine that slows growth of new blood vessels can be give after the embolization procedure to prevent or delay new growth of blood vessels to tumors.

This study will examine the safety and effectiveness of interferon-a and octreotide for the treatment of Zollinger-Ellison syndrome (gastrinoma) and advanced non-B islet cell cancer. Gastrinoma is a tumor produced by the pancreas that secretes the hormone gastrin, which in turn stimulates production of gastric juices that cause ulcers. Some of these tumors are malignant. Gastrinomas that have spread and cannot be surgically removed require drug treatment (chemotherapy). Current drug regimens, however, provide only temporary benefit and, in some cases, produce life-threatening side effects. In studies of patients with tumors similar to gastrinoma, the drugs octreotide and interferon-a, alone or in combination, showed some effect in stopping tumor growth and were better tolerated than chemotherapy. At least one-third of patients responded to treatment with either drug for at least 6 months; the two drugs given together may produce a better response than either one alone. Patients currently enrolled in an NIH study of Zollinger-Ellison syndrome whose gastrinoma has spread from the original site and cannot be surgically removed may be eligible for this study. Participants will be admitted to the NIH Clinical Center for blood and urine tests, electrocardiogram (EKG), chest X-ray and imaging studies (CT, ultrasound, MRI, octreoscan, and bone scan) before beginning treatment to evaluate the size and extent of tumors. Patients will then start interferon-a or octreotide, or both, given as injections under the skin. Treatment will continue for at least 6 months, unless side effects require stopping the drugs early. Patients whose tumors shrink or remain stable may continue treatment indefinitely. Those who do not respond to treatment will be taken off the study and offered standard chemotherapy. Patients will be admitted to the hospital for the first day or two of therapy to be monitored for side effects and to learn how to self-inject the drugs to continue therapy at home. Both drugs are given [Note: how often? once a day, twice a day, weekly?] (Octreotide is also available in long-acting form, and patients who prefer may be given this drug once a month by the doctor.) During the treatment period, patients will be seen by their personal physician every 2 weeks for the first month and once a month thereafter for a medical evaluation and check of adverse side effects of treatment. In addition, they will be admitted to the NIH Clinical Center once every 3 months for a medical evaluation and imaging studies, including CT, MRI, ultrasound, bone scan, and octreoscan, to assess the effect of treatment on tumor size.

This prospective study aims to evaluate the sensitivity and specificity of an integrated model using fragmentomic profiles of plasma cell-free DNA for early detection of pancreatic neuroendocrine tumors.

This phase II trial studies how well sapanisertib works in treating patients with pancreatic neuroendocrine tumor that has spread to other places in the body (metastatic), does not respond to treatment (refractory), or cannot be surgically removed. Drugs such as sapanisertib may stop the growth or shrink tumor cells by blocking some of the enzymes needed for cell growth.

The purpose of this research study is to determine the effectiveness of AMG 479 against carcinoid and pancreatic neuroendocrine tumors. AMG 479 is an antibody that is made in the laboratory. Antibodies are highly specific proteins produced by the body's immune system that recognize foreign substances in the body. AMG 479 has been used in other research studies and information from those other research studies suggests that AMG 479 may help to prevent the growth of some neuroendocrine tumors. The observed antitumor activity of AMG 479, together with the current limited treatment options available for patients with neuroendocrine tumors, warrant further investigation of AMG 479 in this patient population.

RATIONALE: Drugs used in chemotherapy, such as capecitabine, streptozocin, and cisplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. It is not yet known whether giving capecitabine together with streptozocin is more effective with or without cisplatin in treating neuroendocrine tumors. PURPOSE: This randomized phase II trial is studying giving capecitabine together with streptozocin to see how well it works compared with or without cisplatin in treating patients with unresectable or metastatic neuroendocrine tumors.

RATIONALE: Drugs used in chemotherapy, such as fluorouracil, leucovorin, and irinotecan, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more tumor cells. PURPOSE: This phase II trial is studying how well combination chemotherapy works as first-line therapy in treating patients with locally advanced or metastatic neuroendocrine tumors of the duodenum or pancreas that cannot be removed by surgery.

RATIONALE: Radiolabeled octreotide can locate tumor cells and deliver radioactive tumor-killing substances to them without harming normal cells. PURPOSE: This phase I trial is to study the safety and effectiveness of radiolabeled octreotide in treating children who have advanced or refractory solid tumors.