Treatment Trials

397 Clinical Trials for Various Conditions

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RECRUITING
Study of NALIRIFOX in Advanced Unresectable Small Bowel Tumors
Description

The study regimen will be administered on an outpatient basis and all medications are administered intravenously (IV). Subjects will receive treatment on Day 1 and Day 15 of each 28-day cycle consisting of the following: nanoliposomal irinotecan at 50 mg/m2, followed by oxaliplatin 60 mg/m2, followed by leucovorin at 400 mg/m2 30 minutes after completion of oxaliplatin, followed by 5-FU 2400 mg/m2 60 minutes after leucovorin completion. Subjects will receive up to 6 cycles of NALIRIFOX then based on response and per physician discretion, de-escalated maintenance treatment with NALIRIFOX minus oxaliplatin may continue. Subjects will continue de-escalated maintenance treatment until progression per RECIST 1.1, intolerable toxicity or physician/subject choice to discontinue.

WITHDRAWN
A Phase I Study of Adagrasib and Durvalumab for Treatment of Advanced Non-small Cell Lung Cancers and Gastro-intestinal Cancers Harboring KRAS G12C Mutations
Description

To find a recommended dose of the combination of adagrasib and durvalumab that can be given to patients with cancers that have a KRAS G12C mutation.

RECRUITING
Ramucirumab and Paclitaxel or FOLFIRI in Advanced Small Bowel Cancers
Description

This phase II trial studies how well ramucirumab and paclitaxel or the FOLFIRI regimen (leucovorin calcium, fluorouracil, and irinotecan hydrochloride) work in treating patients with small bowel cancers that have spread extensively to other anatomic sites (advanced) or are no longer responding to treatment (refractory). Ramucirumab is a monoclonal antibody that attaches to and inhibits a molecule called VEGFR-2. This may restrain new blood vessel formation therefore reducing nutrient supply to tumor which may interfere with tumor cell growth and expansion. Drugs used in chemotherapy, such as paclitaxel, leucovorin calcium, fluorouracil, and irinotecan hydrochloride work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving Ramucirumab plus paclitaxel or FOLFIRI, may be helpful in treating advanced or refractory small bowel cancers and may help patients live longer.

TERMINATED
Assessment of a Serious Illness Conversation Guide (SICG) in Advanced Gastro-Intestinal Cancers
Description

The purpose of the study is to determine whether standardized implementation of a scripted template for discussing important issues that arise near the end of life improves the care of those who have advanced cancer.

TERMINATED
Studying a Tumor Marker for Testicular Cancer, Skin Cancer, Small Intestine Cancer, and Pancreatic Cancer
Description

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. PURPOSE: This research study is evaluating a tumor marker for testicular cancer, skin cancer, small intestine cancer, and pancreatic cancer.

COMPLETED
Irinotecan, Oxaliplatin, and Capecitabine as First-Line Therapy in Treating Patients With Metastatic or Unresectable Locally Advanced Small Bowel Cancer
Description

This phase II trial studies how well giving irinotecan hydrochloride together with oxaliplatin and capecitabine works as first-line therapy in treating patients with metastatic or unresectable locally advanced small bowel cancer. Drugs used in chemotherapy, such as irinotecan hydrochloride, oxaliplatin, and capecitabine, 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.

COMPLETED
Oxaliplatin Plus Capecitabine in Treating Patients With Colorectal, Appendix, or Small Bowel Cancer
Description

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. PURPOSE: Phase I trial to study the effectiveness of combining oxaliplatin with capecitabine in treating patients who have colorectal, appendix, or small bowel cancer.

RECRUITING
sFOLFOXIRI in Advanced Gastroesophageal Cancer, (SAGE)
Description

The primary objective is to determine the clinical efficacy of treatment regimen in terms of objective response rate (ORR). The secondary objectives is to determine the clinical efficacy of the study treatment in terms of progression free survival (PFS) and overall survival (OS). Additionally, to characterize the safety and toxicity profile of the study treatment as measured by the adverse event rates.

COMPLETED
Phase II Trial of Combination Immunotherapy in Subjects With Advanced Small Bowel and Colorectal Cancers
Description

Background: Metastatic or refractory/recurrent small bowel and colorectal cancers cannot be cured and are often not helped by standard treatments. Researchers want to find better treatments by testing a combination of drugs. Objective: To learn if a new combination of immunotherapy drugs can shrink tumors in people with advanced small bowel and colorectal cancers. Eligibility: People ages 18 and older who have advanced metastatic or refractory/recurrent small bowel and/or colorectal cancer. Design: Participants will be screened on a separate protocol. They will have a physical exam and medical history. They will have imaging scans. They will have blood and urine tests. Their heart function will be measured. They may have a tumor biopsy. Participants will repeat some of the screening tests during the study. Participants will be put into study groups. Each group will get a combination of the following drugs: CV301 vaccine (modified vaccinia Ankara (MVA)-BN-CV301 and Fowlpox (FPV)-CV301), M7824 (MSB0011359C), and N-803 (Anktiva). Some will also get NHS-IL12 (M9241). Participants will get the CV301 vaccines by injection under the skin. They will get M7824 by intravenous infusion every 2 weeks. They will get N-803 by injection under the skin every 2 or 4 weeks. They may get NHS-IL12 by injection under the skin every 4 weeks. They will take the study drugs for up to 1 year. They will visit the National Institutes of Health (NIH) every 2 weeks. After treatment ends, participants will go to the clinic for a 28-day follow-up visit or have a telephone call. They will be contacted every 3 months for 1 year, and then every 6 months after that for the rest of their life.

COMPLETED
The GI Binder: A Psychoeducational Intervention for Gastrointestinal Cancer Patients
Description

This research study is evaluating the use of a binder of educational materials with nurse teaching to prepare patients for chemotherapy

COMPLETED
Serial SMS Reminders and an Opt-out Mailed FIT Kits to Improve Colorectal Screening Participation: A Single Center RCT
Description

This pilot study is a 2-armed randomized controlled trial assessing the impact of a multimodal approach on colorectal cancer screening participation rates in a Federally Qualified Health Center. The trial will test serial text message reminders and opt-out mailed fecal immunochemistry test (FIT) home kits against a simple reminder text message control. Patients aged 50-74 years, who are registered at a Family Practice and Counselling Network (FPCN) clinic and are overdue for colorectal cancer screening will be recruited. The primary outcome is the rate of FIT kits being returned at 12 weeks.

COMPLETED
Using Electrical Bioimpedance Assessments to Estimate Perioperative Total Body Water and Postoperative Fluid Need
Description

Being able to accurately monitor patient bodily fluid levels during and after surgery is very important, as there are a number of complications that can arise if a patient's fluid levels become unbalanced, such as swelling within or pressure on various bodily organ systems. There are several different ways that physicians can monitor a patient's fluid balance during and after surgery, such as measuring the amount of urine output or the use of central venous catheters which measure the pressure in the veins entering the heart. Most of these techniques are invasive since they require tubes to be inserted into the body. A potential alternative would be to use a noninvasive technique such as electrical bioimpedance (BIA). Bioimpedance assessments work by using small electrical currents that can accurately predict both the water surrounding the outside of cells in the body, as well as the total amount of water in the entire body. Electrical bioimpedance assessments have been used to estimate patient swelling following surgery (edema), to measure the volume of blood the heart is pumping out, as well as to calculate body fat percentages. The goal of this study is to relate this technology to fluid shifts within the body that occur as a result of surgery, in particular, major intra-abdominal surgeries. By using bioimpedance during and after surgery, the investigators will compare the data collected with that calculated by using traditional measures of body fluid status, such as urine output and intraoperative blood loss. During the study, the bioimpedance monitors will not replace the standard bodily fluid monitors and will not interfere with their readings. Additionally, the electrical current produced by the bioimpedance monitors is too small for patients to feel and will not interfere with medical devices such as pacemakers.

COMPLETED
Combination of Brivanib With 5-Fluorouracil/Leucovorin (5FU/LV) and 5-Fluorouracil/Leucovorin/Irinotecan (FOLFIRI)
Description

The purpose of this study is to determine a safe and maximum tolerable dose of Brivanib when combined with standard dose 5FU/LV and FOLFIRI.

TERMINATED
Antineoplaston Therapy in Treating Patients With Cancer of the Small Intestine
Description

Current therapies for Cancer of the Small Intestine provide very limited benefit to the patient. The anti-cancer properties of Antineoplaston therapy suggest that it may prove beneficial in the treatment of Cancer of the Small Intestine. PURPOSE: This study is being performed to determine the effects (good and bad) that Antineoplaston therapy has on patients with Cancer of the Small Intestine.

RECRUITING
A Phase II Study of Adjuvant Immunotherapy Targeting KRAS G12D, KRAS G12V, or TP53 R175H for Participants With Advanced Gastrointestinal Malignancies
Description

Background: Gastrointestinal (GI) cancer affects the organs (such as the stomach, large and small intestine, pancreas, colon, liver, and biliary system) of the digestive tract. In some participants who have had surgery for GI cancer, blood tests show that the cancer has spread despite being unable to be identified by scans. Certain gene mutations (changes) in GI cancer (such as KRAS or TP53) can be targeted by T cells, a type of immune cell, in individuals with specific HLA types (genes that help proteins in the body know what is self and non-self). Researchers want to see if they can stop GI cancer from returning or spreading in people with these gene mutations and specific HLA types. Objective: To test therapy with modified T-cells to prevent or delay the return of GI cancer after standard treatment. T-cells play a role in the body s immune system. Eligibility: People aged 18 to 72 years with GI cancer that was treated with standard therapy and is not seen on imaging scans. They must have specific gene mutations and HLA types. They also must have certain clinical or blood tests showing the cancer is spreading (elevating CA19-9 or detectable ctDNA). Design: Participants will be divided into 2 groups. Participants nor the study team can choose what Group to participate in; this is done by randomization , like flipping a coin. Participants will have a 1-to-1 chance of being in Group 1 or Group 2. Group 1 will receive T-cell therapy. Their own T-cells will be collected. In a lab, the cells will be combined with a virus that carries a protein to target cancer cells. Group 1 participants will stay in the hospital for 3 weeks or more. They will have chemotherapy, and their modified T-cells will be infused through a tube attached to a needle inserted into a vein. Group 1 participants will visit the clinic every 3 months for 1 year and then every 6 months for 5 years. Then they will have follow-up visits for another 10 years under a different protocol. Group 2 participants will not receive treatment with T-cells. They will visit the clinic every 3 months for 1 year and then every 6 months for 5 years.

RECRUITING
Enhanced Assistance During Radiotherapy for Unmet Essential Needs
Description

This is a prospective single-arm study of an enhanced assistance intervention for patients with unmet essential needs undergoing \>10 fractions of radiotherapy comparing delay-free completion of radiotherapy in study participants to historic controls.

RECRUITING
Tier - Palliative Care For Patients With Advanced Heart Failure or Cancer
Description

TIER-PC is an adaptive model of delivering palliative care that provides the right level of care to the right patients at the right time. It represents an adaption of the Mount Sinai PALLIATIVE CARE AT HOME (PC@H) program, which delivers home-based palliative care. TIER-PC increases the number and intensity of disciplines added to the patient's care team as their symptoms worsen and function declines. In Tier 1, patients who are able to care for themselves and no/mild symptoms receive a community health worker (CHW) trained to elicit illness understanding in a culturally competent way. In Tier 2, for patients with poorer function and mild symptoms, a social worker (SW), trained in serious illness communication, joins the CHW to further elicit patients' goals and prognostic understanding while communicating symptom needs to their primary clinician. In Tier 3, as function decreases and symptoms increase, an advance practice nurse (APN) joins the CHW and SW to manage complex symptoms. Finally, in Tier 4, for those older adults with the poorest function and most complex symptoms, a physician joins the team to ensure that the most complex needs (e.g., end-of-life treatment preferences and multifaceted symptom control) are met. The CHW follows patients longitudinally across all tiers and re-allocates them to the appropriate tier based on their evolving needs.

RECRUITING
Locally ablatIVe thErapy for oLigo-progressive gastrOintestiNal maliGnancies (LIVELONG)
Description

This is a phase 2 pragmatic study that evaluates the clinical benefit of continuing systemic therapy with the addition of locally ablative therapies for oligo-progressive solid tumors as the primary objective. The primary outcome measure is the time to treatment failure (defined as time to change in systemic failure or permanent discontinuation of therapy) following locally ablative therapy.

RECRUITING
Individualized Dose Escalation of 5-FU for Gastrointestinal Cancer
Description

This is a single-arm clinical trial to evaluate the feasibility of a chemotherapy regimen using adaptive, individualized dose escalation of 5-FU chemotherapy for patients who have good tolerance of the initial dose. Study participants will also receive oxaliplatin chemotherapy together with 5-FU, at standard doses. The goal of the study is to examine the feasibility and effectiveness of this approach, using individualized dose escalation of 5-FU in patients who do not have serious side effects at lower doses.

RECRUITING
Study of the Monoclonal Antibody IMT-009 in Patients With Advanced Solid Tumors or Lymphomas
Description

This is a Phase 1/2a open-label, multicenter, dose escalation and dose expansion trial in which IMT-009 will be administered by the intravenous (IV) route to participants with solid tumors or lymphomas. The main goals of this study are to: * Find the recommended dose of IMT-009 that can be safely given to participants * Learn more about the side effects of IMT-009 * Learn more about pharmacokinetics of IMT-009 * Learn more about the effectiveness of IMT-009 * Learn more about different pharmacokinetic biomarkers and how they might change in the presence of IMT-009

ACTIVE_NOT_RECRUITING
CRC Detection Reliable Assessment With Blood
Description

The CRC DRAW study will assess the sensitivity and specificity of the blood-based, Next-Gen CRC Screening Test for the detection of CRC.

ACTIVE_NOT_RECRUITING
Study to Evaluate the Safety, PK, and Dose Response of Paltusotine in Subjects With Carcinoid Syndrome
Description

The purpose of this study is to evaluate the safety, pharmacokinetics (PK), and exploratory dose response of paltusotine treatment in subjects with carcinoid syndrome. This study consists of a Randomized Treatment Phase followed by an Open-Label Extension (OLE) Phase.

RECRUITING
Enhanced Outpatient Symptom Management to Reduce Acute Care Visits Due to Chemotherapy-Related Adverse Events
Description

This clinical trial studies if enhanced outpatient symptom management with telemedicine and remote monitoring can help reduce acute care visit due to chemotherapy-related adverse events. Receiving telemedicine and remote monitoring may help patients have better outcomes (such as fewer avoidable emergency room visits and hospitalizations, better quality of life, fewer symptoms, and fewer treatment delays) than patients who receive usual care.

Conditions
Clinical Stage IV Esophageal Adenocarcinoma AJCC v8Clinical Stage IV Esophageal Squamous Cell Carcinoma AJCC v8Clinical Stage IV Gastric Cancer AJCC v8Clinical Stage IVA Esophageal Adenocarcinoma AJCC v8Clinical Stage IVA Esophageal Squamous Cell Carcinoma AJCC v8Clinical Stage IVA Gastric Cancer AJCC v8Clinical Stage IVB Esophageal Adenocarcinoma AJCC v8Clinical Stage IVB Esophageal Squamous Cell Carcinoma AJCC v8Clinical Stage IVB Gastric Cancer AJCC v8Metastatic Colon CarcinomaMetastatic Esophageal CarcinomaMetastatic Gastric CarcinomaMetastatic Liver CarcinomaMetastatic Malignant Digestive System NeoplasmMetastatic Malignant Small Intestinal NeoplasmMetastatic Malignant Thoracic NeoplasmMetastatic Pancreatic CarcinomaMetastatic Rectal CarcinomaPathologic Stage IV Esophageal Adenocarcinoma AJCC v8Pathologic Stage IV Esophageal Squamous Cell Carcinoma AJCC v8Pathologic Stage IV Gastric Cancer AJCC v8Pathologic Stage IVA Esophageal Adenocarcinoma AJCC v8Pathologic Stage IVA Esophageal Squamous Cell Carcinoma AJCC v8Pathologic Stage IVB Esophageal Adenocarcinoma AJCC v8Pathologic Stage IVB Esophageal Squamous Cell Carcinoma AJCC v8Postneoadjuvant Therapy Stage IV Esophageal Adenocarcinoma AJCC v8Postneoadjuvant Therapy Stage IV Esophageal Squamous Cell Carcinoma AJCC v8Postneoadjuvant Therapy Stage IV Gastric Cancer AJCC v8Postneoadjuvant Therapy Stage IVA Esophageal Adenocarcinoma AJCC v8Postneoadjuvant Therapy Stage IVA Esophageal Squamous Cell Carcinoma AJCC v8Postneoadjuvant Therapy Stage IVB Esophageal Adenocarcinoma AJCC v8Postneoadjuvant Therapy Stage IVB Esophageal Squamous Cell Carcinoma AJCC v8Stage IV Colon Cancer AJCC v8Stage IV Hepatocellular Carcinoma AJCC v8Stage IV Pancreatic Cancer AJCC v8Stage IV Rectal Cancer AJCC v8Stage IV Small Intestinal, Esophageal, Colorectal, Mesenteric, and Peritoneal Gastrointestinal Stromal Tumor AJCC v8Stage IVA Colon Cancer AJCC v8Stage IVA Hepatocellular Carcinoma AJCC v8Stage IVA Rectal Cancer AJCC v8Stage IVB Colon Cancer AJCC v8Stage IVB Hepatocellular Carcinoma AJCC v8Stage IVB Rectal Cancer AJCC v8Stage IVC Colon Cancer AJCC v8Stage IVC Rectal Cancer AJCC v8
RECRUITING
Virtual Reality for GI Cancer Pain to Improve Patient Reported Outcomes
Description

Patients with digestive tract malignancy often experience severe and unremitting abdominal pain that negatively affects physical, emotional, and social function, as well as health related quality of life (HRQOL). Therapeutic virtual reality (VR) has emerged as a promising and evidence-based treatment modality for cancer pain. Users of VR wear a pair of goggles with a close-proximity screen in front of the eyes that creates a sensation of being transported into lifelike, three-dimensional worlds. To date, VR has been limited to short-term clinical trials for cancer pain. Moreover, limited research exists on theory-based VR modalities beyond mere distraction, such as VR that employs acceptance and commitment therapy (ACT) with components of biofeedback and mindfulness. To bridge these gaps, this study seeks to: (1) assess the impact of immersive VR on patient-reported outcomes (PROs), including pain, activity metrics, and opioid use among patients with visceral pain from a digestive tract malignancy; (2) assess differences in PROs, activity metrics, and opioid use between skills-based VR therapy vs. distraction VR therapy; and (3) determine patient-level predictors of VR treatment response in visceral cancer pain. To address these aims, the study will measure PROs and opioid use in 360 patients randomized among 3 groups and follow them for 60 days after enrollment: (1) an enhanced VR group receiving skills-based VR; (2) a distraction-based VR group receiving patient-selected VR videos; and (3) a VR sham control group using a VR headset with 2-D content. The results will inform best practices for the implementation of VR for visceral cancer pain management and guide selection of patient-tailored experiences.

Conditions
Cancer PainVisceral PainGastrointestinal NeoplasmsCancer of Gastrointestinal TractSmall Intestine CancerPancreas CancerLiver CancerColon CancerBiliary Tract CancerStomach CancerRectum CancerPeritoneal CancerGastrointestinal Cancer MetastaticGastrointestinal Cancers - AnusGastrointestinal Cancers - StomachGastrointestinal Cancers - ColorectalGastrointestinal Cancers - Small IntestineSmall Intestine Cancer Stage IIISmall Intestine Cancer Stage IVSmall Intestine Cancer, RecurrentPancreas Cancer, Stage IIIPancreas Cancer, Stage IVPancreas Cancer, MetastaticPancreas Cancer, RecurrentLiver Cancer Stage IIIaLiver Cancer Stage IIIbLiver Cancer Stage IIIcLiver Cancer Stage IVColon Cancer Stage IIIColon Cancer Stage IVStomach Cancer Stage IIIStomach Cancer Stage IVStomach Cancer RecurrentRectum Cancer, RecurrentGastrointestinal Cancers - LiverAnal CancerAnal Cancer Stage IIIAnal Cancer Stage IVAnal Cancer RecurrentAnal Cancer MetastaticAnal Cancer, Stage IIIAAnal Cancer, Stage IIIBAppendix CancerAmpullary CancerBile Duct CancerBile Duct Cancer Stage IIIBile Duct Cancer Stage IVBile Duct Cancer Stage IVABile Duct Cancer Stage IVBBile Duct Cancer RecurrentCarcinoid TumorCarcinoid Tumor of PancreasCarcinoid Tumor of Large IntestineCarcinoid Tumor of GI SystemCarcinoid Tumor of ColonCarcinoid Tumor of LiverCarcinoid Tumor of CecumCarcinoid Tumor of IleumCarcinoid Tumor of RectumCarcinoid Tumor of the Small BowelCarcinoid Tumor of the StomachLarge Intestine CancerEsophagus CancerEsophagus Cancer, Stage IIIEsophagus Cancer, Stage IVEsophagus Cancer, RecurrentGallbladder CancerGallbladder Cancer Stage IIIGallbladder Cancer Stage IVGastric (Stomach) CancerNeuroendocrine TumorPeritoneum CancerRectal CancerEsophagus Cancer, Stage IEsophagus Cancer, Stage IIGallbladder Cancer Stage IGallbladder Cancer Stage IIBile Duct Cancer Stage IBile Duct Cancer Stage II
AVAILABLE
Expanded Access to Ulixertinib (BVD-523) in Patients with Advanced MAPK Pathway-Altered Malignancies
Description

The objective of this expanded access program is to provide ulixertinib (BVD-523) for compassionate use in advanced cancer patients with MAPK pathway-altered solid tumor(s), including but not limited to KRAS, NRAS, HRAS, BRAF, MEK, and ERK mutations who have incomplete response to or have exhausted available therapies. Ulixertinib is available for treatment as monotherapy or in combination with other clinically tolerable agent(s), conditionally approved by the drug manufacturer.

COMPLETED
Clinical Trial of a Novel Dose Adjustment Algorithm for Preventing Cytopenia-Related Delays During FOLFOX Chemotherapy
Description

The study is testing an intervention of an investigator-developed chemotherapy dose adjustment algorithm. The primary objective of this study is to evaluate the effectiveness of the chemotherapy dose adjustment algorithm for reducing unplanned delays in patients receiving FOLFOX (5-fluorouracil, leucovorin, and oxaliplatin)-type chemotherapy, while maintaining acceptable chemotherapy dose-intensity.

UNKNOWN
Canady Helios Cold Plasma Scalpel Treatment at the Surgical Margin and Macroscopic Tumor Sites
Description

The study designed is to evaluate the safety of Canady Helios™ Cold Plasma Scalpel (CHCPS) in patients with solid tumors with carcinomatosis scheduled to undergo surgical resection for cytoreduction. Patients with stage 4 resectable tumors as decided by a multidisciplinary disease management team may be included if the metastatic disease is non-synchronous (e.g. recurrent colorectal carcinoma with hepatic metastasis amenable for surgical resection).. Plasma is an ionized gas typically generated in high-temperature laboratory conditions. Plasma coagulators are currently used routinely as surgical tools with multiple applications that create temperatures between 37° C to 43°C and cause thermal injury. Earlier studies demonstrated the non-aggressive nature of cold plasma. As evidence accumulates, it is becoming clear that low-temperature cold plasma has an increasing role in biomedical applications.

RECRUITING
The Registry of Oncology Outcomes Associated With Testing and Treatment
Description

This study is to collect and validate regulatory-grade real-world data (RWD) in oncology using the novel, Master Observational Trial construct. This data can be then used in real-world evidence (RWE) generation. It will also create reusable infrastructure to allow creation or affiliation with many additional RWD/RWE efforts both prospective and retrospective in nature.

COMPLETED
Chromogranin A as Blood Marker in Cancer Patients
Description

Gastroentero-pancreatic neuroendocrine tumors (GEP-NETs) are a heterogenous group of neoplasms that arise from enterochromaffin cells of the gastrointestinal (GI) tract and pancreas. They account for 50-70% of all incident NETs. Due to the lack of symptoms in the early stage of disease and the frequency of nonspecific GI symptoms, GEP-NETs are difficult to diagnose. Identification of effective biomarkers (such as Chromogranin A) to improve GEP-NET diagnosis, as well as to assess treatment efficacy, relapse and prognosis, is important for improving outcomes for patients with GEP-NETs. The purpose of this study is to validate the performance of Brahms (BRAHMS) Chromogranin A II Kryptor (KRYPTOR) assay to monitor the course of disease in patients with well-defined GEP-NETs.