Methionine and PBR28-PET (Peripheral Benzodiazepine Receptors) in Brain Metastases Following Radiosurgery
Studies of Methionine-PET and PBR28-PET in Brain Metastases to Differentiate Tumor Recurrence and Radiation Necrosis Following Stereotactic Radiosurgery
Studieöversikt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljerad beskrivning
Studietyp
Studietyp
Inskrivning (Faktisk)
Inskrivning
Kontakter och platser
Studieorter
-
-
Connecticut
-
New Haven, Connecticut, Förenta staterna, 06511
- Yale University
-
-
Deltagandekriterier
Urvalskriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- Patients over 18 years with brain metastases from melanoma or non-small cell lung cancer
- Patients must have had SRS and regrowth in at least one lesion > 0.5 cm in greatest dimension and fall into one of two categories: a) patient is deemed clinically appropriate for surgical intervention (biopsy or craniotomy) OR b) patient is asymptomatic and has a life expectancy of > 6 months so that serial follow-up imaging is appropriate
- Willingness to participate in imaging studies
- Able to give informed consent
Exclusion Criteria:
- Subjects with history of prior radiation exposure for research purposes within the past year, such that participation in this study would place them over the FDA limits for annual radiation exposure. This guideline is an effective dose of 5 rem received per year.
- Subjects who are pregnant or currently breastfeeding
- Women of child-bearing age who are sexually active, unless they agree to two forms of contraception, and have a negative urine pregnancy test at screening and on the days of the PET imaging
- Patients unable to undergo MRI with gadolinium-based contrast for standard clinical reasons which include:
- Cardiac pacemaker, aneurysm clip, cochlear implants, Intra Uterine Device (IUD), shrapnel, neurostimulators, defibrillator, artificial heart valve, or history of metal fragments in eyes.
- Pregnancy
- Body size too large for closed MRI
- Known hepatic fibrosis.
- Claustrophobia
- Contraindication to MR contrast agents: eGFR (epidermal growth factor receptor) < 30 by the Cockcroft- Gault formula if > 60 years old or with chronic renal disease
- Anaphylactic allergy to gadolinium
Studieplan
Hur är studien utformad?
Designdetaljer
- Observationsmodeller: Kohort
- Tidsperspektiv: Blivande
Antal grupper/kohorter
Kohorter och interventioner
Grupp / KohortGrupp / Kohort |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Melanoma Brain Metastases
Stage 4 cancer patient population with melanoma with brain metastases previously treated with SRS
|
[11C]Methionine [11].
This natural amino acid, and its various fluorinated derivatives, has been widely used in brain tumor studies due to a) high tumor-to-normal brain contrast, and b) its sensitivity to biological functions including amino acid transport and utilization.
[11C]PBR28 [12].
This ligand is one of a series of second-generation tracers that bind to TSPO (translocator protein), a protein that is upregulated in activated microglia.
Andra namn:
|
|
Lung Cancer Brain Metastases
Stage 4 cancer patient population with non-small cell lung cancer with brain metastases previously treated with SRS
|
[11C]Methionine [11].
This natural amino acid, and its various fluorinated derivatives, has been widely used in brain tumor studies due to a) high tumor-to-normal brain contrast, and b) its sensitivity to biological functions including amino acid transport and utilization.
[11C]PBR28 [12].
This ligand is one of a series of second-generation tracers that bind to TSPO (translocator protein), a protein that is upregulated in activated microglia.
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Change in Regrowing Tumor Rate from Radiation Effect
Tidsram: 6 months
|
6 months
|
Samarbetspartners och utredare
Sponsor
Sponsor
Utredare
Utredare
- Huvudutredare: Veronica Chiang, MD, Yale University
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Studiestart
Primärt slutförande (Faktisk)
Primärt slutförande
Avslutad studie (Faktisk)
Avslutad studie
Studieregistreringsdatum
Först inskickad
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Första postat
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste uppdatering publicerad
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
Andra studie-ID-nummer
- 1401013294
Läkemedels- och apparatinformation, studiedokument
Studerar en amerikansk FDA-reglerad läkemedelsprodukt
Studerar en amerikansk FDA-reglerad produktprodukt
produkt tillverkad i och exporterad från U.S.A.
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .