Methionine PET/CT Studies In Patients With Cancer
- Full Text View
- Tabular View
- No Study Results Posted
- Disclaimer
- How to Read a Study Record
Purpose
The purpose of this study is to test the usefulness of imaging with radiolabeled methionine in the evaluation of children and young adults with tumor(s). Methionine is a naturally occurring essential amino acid. It is crucial for the formation of proteins. When labeled with carbon-11 (C-11), a radioactive isotope of the naturally occurring carbon-12, the distribution of methionine can be determined noninvasively using a PET (positron emission tomography) camera. C-11 methionine (MET) has been shown valuable in the monitoring of a large number of neoplasms. Since C-11 has a short half life (20 minutes), MET must be produced in a facility very close to its intended use. Thus, it is not widely available and is produced only at select institutions with access to a cyclotron and PET chemistry facility. With the new availability of short lived tracers produced by its PET chemistry unit, St. Jude Children's Research Hospital (St. Jude) is one of only a few facilities with the capabilities and interests to evaluate the utility of PET scanning in the detection of tumors, evaluation of response to therapy, and distinction of residual tumor from scar tissue in patients who have completed therapy. The investigators propose to examine the biodistribution of MET in patients with malignant solid neoplasms, with emphasis on central nervous system (CNS) tumors and sarcomas. This project introduces a new diagnostic test for the noninvasive evaluation of neoplasms in pediatric oncology. Although not the primary purpose of this proposal, the investigators anticipate that MET studies will provide useful clinical information for the management of patients with malignant neoplasms.
| Condition | Intervention |
|---|---|
|
Brain Tumors and /or Solid Tumors Including: Brain Stem Glioma High Grade CNS Tumors Ependymoma Medulloblastoma Craniopharyngioma Low Grade CNS Tumors Hodgkin Lymphoma Non Hodgkin Lymphoma Ewing Sarcoma Osteosarcoma Rhabdomyosarcoma Neuroblastoma Other |
Drug: Methionine |
| Study Type: | Interventional |
| Study Design: | Endpoint Classification: Safety/Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Diagnostic |
| Official Title: | Methionine PET/CT Studies In Patients With Cancer |
- Success rate of methionine (MET) for visualizing tumors [ Time Frame: Baseline ] [ Designated as safety issue: Yes ]To estimate the success rate of methionine (MET) for visualizing tumors at the time of diagnosis. We hypothesize that at least 70% of tumors within each group studied will be successfully visualized.
- Association of methionine uptake with tumor grade [ Time Frame: End of study (maximum of 3 years post methionine infusion and PET scan) ] [ Designated as safety issue: No ]Methionine uptake in tumors will be compared among tumor grades in patients with newly diagnosed or relapsed, and/or persistent disease. Hypothesis: high-grade tumors will concentrate higher amounts of MET than lower-grade tumors measured both qualitatively and semi-quantitatively.
- Bio-distribution of MET in organs [ Time Frame: At baseline, after enrollment of the first 93 participants ] [ Designated as safety issue: No ]Whole body scans will be acquired and descriptive statistics for MET uptake from other parts of the body will be provided.
| Estimated Enrollment: | 650 |
| Study Start Date: | May 2009 |
| Estimated Study Completion Date: | May 2019 |
| Estimated Primary Completion Date: | May 2019 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Participants
Participants who meet the eligibility criteria in the study will receive methionine.
|
Drug: Methionine
Intravenous injection
Other Names:
|
Detailed Description:
The study focuses on the following objectives:
Primary objective:
- To estimate the success rate of Methionine (MET) for visualizing tumors at the time of diagnosis. The study hypothesizes that at least 70% of newly diagnosed tumors within each group will be studied and will be successfully visualized.
Secondary objective:
- To compare uptake of MET in tumors with tumor grade in patients with newly diagnosed or relapsed, and/or persistent disease. Hypothesis: high grade tumors will concentrate higher amounts of MET than lower grade tumors measured both qualitatively and semi-quantitatively.
- To examine the bio-distribution of MET in organs that do not contain tumor, in particular the lungs, heart, mediastinum, liver, spleen, pancreas, muscle, brain, and bone marrow.
Exploratory objectives:
- To compare the findings on MET PET scans with those of standard imaging modalities, principally MRI (magnetic resonance imaging) and FDG (fluorodeoxyglucose) PET CT (computed tomography) at diagnosis, or at study enrollment for patients with relapsed and or persistent disease, and for all patients over time.
- To compare the extent of abnormality on MRI with that of MET.
- To determine the presence or absence of elevated MET uptake beyond those of MRI defined abnormality.
- To explore the relationship between MET uptake and prognosis.
Eligibility| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- All participants under the care of St. Jude physicians with known or suspected neoplastic disease are eligible for participation.
- Participants will have had, or are scheduled to have clinical imaging evaluations which may include FDG PET CT, or CT, or MRI within 4 weeks of entry.
- No limit on age or gender.
- Female participants of childbearing age must not be pregnant (confirmed by serum or urine pregnancy test) or lactating due to theoretical potential harm to the developing fetus or infant from exposure to radiation.
- Informed consent signed by participant, parent, or guardian according to the guidelines of the institutional review board.
Exclusion Criteria:
- More than 6 MET PET scans within the previous 12 months.
- Inability or unwillingness of research participant, parent, or legal guardian/representative to give written informed consent.
Contacts and Locations| Contact: Barry L Shulkin, MD | 1-866-278-5833 | info@stjude.org |
| United States, Tennessee | |
| St. Jude Children's Research Hospital | Recruiting |
| Memphis, Tennessee, United States, 38119 | |
| Contact: Barry L Shulkin, MD 866-278-5833 info@stjude.org | |
| Principal Investigator: Barry L Shulkin, MD | |
| Principal Investigator: | Barry L Shulkin, MD | St. Jude Children's Research Hospital |
More Information
Additional Information:
No publications provided
| Responsible Party: | St. Jude Children's Research Hospital |
| ClinicalTrials.gov Identifier: | NCT00840047 History of Changes |
| Other Study ID Numbers: | METPET |
| Study First Received: | February 9, 2009 |
| Last Updated: | March 5, 2013 |
| Health Authority: | United States: Institutional Review Board United States: Food and Drug Administration |
Keywords provided by St. Jude Children's Research Hospital:
|
Pediatric brain tumor Pediatric solid tumor Pediatric solid neoplasms |
Additional relevant MeSH terms:
|
Brain Neoplasms Craniopharyngioma Adamantinoma Ependymoma Glioma Hodgkin Disease Lymphoma Lymphoma, Non-Hodgkin Medulloblastoma Neuroblastoma Osteosarcoma Rhabdomyosarcoma Central Nervous System Neoplasms Sarcoma, Ewing's Neuroectodermal Tumors, Primitive, Peripheral |
Sarcoma Nervous System Neoplasms Neoplasms by Site Neoplasms Brain Diseases Central Nervous System Diseases Nervous System Diseases Neuroectodermal Tumors Neoplasms, Germ Cell and Embryonal Neoplasms by Histologic Type Neoplasms, Nerve Tissue Bone Neoplasms Bone Diseases Musculoskeletal Diseases Neoplasms, Neuroepithelial |
ClinicalTrials.gov processed this record on May 16, 2013