PET/MR in Assessing Response to Neoadjuvant Radiation Therapy in the Tx of High Grade Sarcomas
Utility of PET/MR in Assessing Response to Neoadjuvant Radiation Therapy in the Treatment of High Grade Sarcomas
Purpose: To assess the utility of PET/MR in assessing response to neoadjuvant radiation therapy in the treatment of high grade sarcomas.
Participants: Adult patients with potentially curable high grade sarcomas that are being treated at UNC with neoadjuvant radiation therapy followed by potentially curative surgical resection.
Procedures (methods): Patients who are being treated for potentially curable high grade sarcomas with neoadjuvant radiation therapy followed by surgical resection undergo pre-treatment, mid-treatment, and post-treatment PET/MR and the response to treatment is assessed by evaluating change in size and FDG avidity. Patients then undergo curative intent resection and are followed. Their pathology is reviewed for treatment affect as is assessed by percent necrosis, size, and resection margins. Patients are followed and assessed for recurrence.
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Fase
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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North Carolina
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Chapel Hill, North Carolina, Verenigde Staten, 27599
- UNC-Chapel Hill
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Age ≥ 18 years of age (no upper age limit)
- Signed, IRB-approved written informed consent
- Must have a biopsy-proven high-grade retroperitoneal or soft tissue extremity sarcoma confirmed by independent evaluation of a UNC sarcoma specialized pathologist.
- Must have surgically curable disease as evaluated by initial imaging by our UNC surgeons.
- Must be in acceptable health to undergo radiation therapy and curative intent surgery as assessed by UNC surgeons and radiation oncologist.
- Must be able to understand and comply with study procedures for the entire length of the study.
- Must receive their neoadjuvant radiation therapy and curative intent surgery at UNC Hospitals - Chapel Hill location.
- Women of childbearing potential must have a negative serum or urine pregnancy test performed within 7 days prior to each PET/MRI
Exclusion Criteria:
- Inability to tolerate MRI (e.g., inability to lie flat for >1 hour)
- Presence of pacemaker, intracranial aneurysm clip, bladder stimulator, cochlear implant or metal near eyes or near pelvis that would create excessive imaging artifact
- Poorly controlled diabetes mellitus
- Creatinine > 1.8 mg/dL OR GFR < 30mL/min
- Body Mass Index (BMI) > 35
- Active vaginal bleeding requiring packing and emergent radiation therapy
- Pregnancy or lactating female
- History of a prior malignancy within past 5 years are excluded unless they have been disease free for 3 or more years
- Substance abuse, medical, psychological, or social conditions that may interfere with the patient's participation in the study
- Evidence of distant disease on physical exam or initial imaging
- Medical conditions precluding radiation therapy or curative intent surgery
- Previous radiation exposure precluding radiation therapy
- Had serious reaction to contrast agent
- Incarcerated or otherwise institutionalized at time of enrollment
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Diagnostisch
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / Behandeling |
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Experimenteel: Single Arm: PET/MR
Each patient will undergo three combined PET/MR scans.
The pre-treatment PET, mid-treatment PET and MR, and post-treatment PET are for research purposes and not part of the patient's standard of care (pre-treatment MR and post-treatment MR).
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Patient will be scheduled for a pre-treatment PET/MR and proceed to neoadjuvant radiation therapy per the direction of the radiation oncologist.
At the end of the second week of radiation therapy the patient will undergo a mid-treatment PET/MR.
The patient will the complete their radiation therapy.
Four weeks after radiation therapy the patient will undergo a post-treatment PET/MR, and proceed for curative intent surgery at 6-8 weeks post radiation if they are still surgical candidates.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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PET Activity Estimates at Midpoint of Treatment as Compared to Baseline
Tijdsspanne: At the end of the second week of radiation therapy, a mid-treatment PET/MR is obtained.
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Primary endpoint is the determination of differences among response groups in PET activity estimates from PET/MR imaging at the midpoint of treatment as compared to baseline.
The measure is computed as the change in mean SUV from the baseline PET-MR scan to the scan at the end of the second week of therapy.
Treatment response will be determined on final pathological evaluation of the resected specimens in patients who undergo curative intent surgery after neoadjuvant radiation in high grade sarcomas.
This will be measured by a single sarcoma specialized pathologist and will be categorized as to the percentage of necrosis, with >90% necrosis considered to be complete response.
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At the end of the second week of radiation therapy, a mid-treatment PET/MR is obtained.
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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PET Activity Estimates at Endpoint of Treatment as Compared to Baseline
Tijdsspanne: A post-treatment PET/MR is obtained at 4 weeks post radiation.
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A secondary endpoint is the determination of differences among response groups in PET activity estimates from PET/MR imaging at the endpoint of treatment as compared to baseline.
The measure is computed as the change in mean SUV from the baseline PET-MR scan to the scan taken four weeks after completion of therapy.
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A post-treatment PET/MR is obtained at 4 weeks post radiation.
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Medewerkers en onderzoekers
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Hoofdonderzoeker: David Lalush, PhD, UNC Biomedical Engineering
Publicaties en nuttige links
Nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
Andere studie-ID-nummers
- LCCC 1615
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
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