Fludeoxyglucose F 18 PET Imaging in Determining Protein and Gene Expression Signatures in Patients With Premalignant Polyps or Colon Cancer
Pilot Study of Ex-Vivo Molecular Polyp Imaging Using 18-F Fluorodeoxyglucose (FGD) Positron Emission Tomography (PET) in the Determination of Protein and Gene Expression Signatures of Premalignant Polyps
RATIONALE: Diagnostic imaging procedures, such as fludeoxyglucose F 18 PET, may be effective in detecting cancer or recurrence of cancer, or premalignant polyps.
PURPOSE: This clinical trial is studying fludeoxyglucose F 18-PET imaging to see how well it works in determining protein and gene expression signatures in patients with premalignant polyps or colon cancer.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
- Genetisk: genekspressionsanalyse
- Genetisk: proteinekspressionsanalyse
- Procedure: terapeutisk konventionel kirurgi
- Andet: immunoenzym teknik
- Genetisk: DNA-methyleringsanalyse
- Procedure: biopsi
- Genetisk: omvendt transkriptase-polymerase kædereaktion
- Andet: diagnostisk laboratoriebiomarkøranalyse
- Stråling: fludeoxyglucose F 18
- Andet: immunhistokemi farvningsmetode
- Genetisk: polymerase kædereaktion
- Genetisk: fluorescens in situ hybridisering
Detaljeret beskrivelse
OBJECTIVES:
Primary
- To determine the feasibility of ex-vivo imaging of colon cancer and colon polyps using fludeoxyglucose F 18 positron emission tomography (FDG PET).
- To evaluate the differences in molecular and genetic profiles between FDG-positive polyps and FDG-negative polyps to suggest what gene mutations and abnormal mRNA and/or protein expressions may be required for FDG avidity ("signature" for FDG avidity).
Secondary
- To evaluate the differences in molecular and genetic profiles between FDG-positive polyps and FDG-positive cancers to suggest what gene mutations and abnormal mRNA and/or protein expressions may be required for cancer formation ("signature" for cancer).
- To evaluate the differences in molecular and genetic profiles between normal colonic mucosa, polyps, and cancer.
- To evaluate the differences and similarities in molecular and genetic profiles between FDG-positive cancers and polyps.
OUTLINE: Part I: Patients receive fludeoxyglucose F 18 (FDG) IV followed 45-60 minutes later by surgery to remove part or all of the colon. Tissue samples of the colon undergo positron emission tomography (PET) imaging.
Part II: Tissue samples are analyzed for glucose transporters proteins (Glut-1, 2, 3, 4, 5, 7) via IHC; presence of K-ras mutation (invariable mutant site on codon 12, 13) via PCR; 18q deletion via fluorescence in situ hybridization (FISH) or DCC IHC; MCT-1, Hex-1, Hex-2, and COX-2 expression levels via quantitative RT-PCR method or western blot; APC mutation via PCR- In Vitro Synthesized-Protein Assay or RT-PCR direct sequencing method; p53 mutation detection via immunochemistry, RT-PCR direct sequence methods, and western blot; methylation alteration of MGMT, CDKN2A, HLTF, MLH1, TIMP3, HIF1, BNIP3, and HRK via methylation detecting microchip; and specific gene methylations via methylation-specific PCR. Some tissue samples may be saved and banked for future studies.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
New York
-
New York, New York, Forenede Stater, 10065
- Memorial Sloan-Kettering Cancer Center
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Subject Inclusion Criteria:
- Patients eligible for entry into the study are those:
- Age 15 to 100
- Undergoing resection of a non-sarcomatous primary colon neoplasm who also has 2 or more adenomas each greater than or equal to 7-10mm in size which are anticipated to be removed with the colon specimen.
- It will be known from MSKCC or outside studies (barium enema, endoscopy, PET/CT, or CT colonography) that the patient has at least 2 proven adenomas 7-10 mm or greater and a primary colon neoplasm
Subject Exclusion Criteria:
- Insulin-dependent diabetics (as established by routine history and presurgical laboratory tests).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
resection of a non-sarcomatous primary colon neoplasm
The surgically removed colon will undergo ex-vivo imaging after examination in pathology.
A PET scanner will be used to acquire a scan of the whole specimen.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Feasibility of ex-vivo imaging of colon cancer and colon polyps using fludeoxyglucose F 18 positron emission tomography (FDG PET)
Tidsramme: 2 years
|
2 years
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Differences in molecular and genetic profiles between FDG-positive polyps and FDG-negative polyps to suggest what gene mutations and abnormal mRNA and/or protein expressions may be required for FDG avidity ("signature" for FDG avidity)
Tidsramme: 2 years
|
2 years
|
|
Differences in molecular and genetic profiles between FDG-positive polyps and FDG-positive cancers to suggest what gene mutations and abnormal mRNA and/or protein expressions may be required for cancer formation ("signature" for cancer)
Tidsramme: 2 years
|
2 years
|
|
Differences in molecular and genetic profiles between normal colonic mucosa, polyps, and cancer
Tidsramme: 2 years
|
2 years
|
|
Differences and similarities in molecular and genetic profiles between FDG-positive cancers and polyps
Tidsramme: 2 years
|
2 years
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Marc J. Gollub, MD, Memorial Sloan Kettering Cancer Center
- Ledende efterforsker: Suresh Jhanwar, PhD, Memorial Sloan Kettering Cancer Center
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 07-114
- P30CA008748 (U.S. NIH-bevilling/kontrakt)
- MSKCC-07114
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .