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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02018107
Other study ID # 13-464
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date January 2014
Est. completion date February 16, 2019

Study information

Verified date March 2020
Source Dana-Farber Cancer Institute
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

In this research study, the investigators are evaluating whether ammonia PET scans or FDG PET perfusion scans are more useful in helping radiologists determine whether liver tumors were successfully destroyed by the heating or freezing procedures (ablations) than other scans currently available to radiologists, such as CT scans and MRI scans.

The currently available scan (usually a CT scan with contrast dye) is not always effective in showing how completely the tumor has been destroyed. The ammonia PET scan is a different way of looking at how much tumor has been destroyed. This study will compare the standard scan (CT scan) with the ammonia PET scan.


Description:

The plan for this study involves the non-therapeutic administration of a radiopharmaceutical, N-13 ammonia or F-18 fluorodeoxyglucose, one to two doses, during the tumor ablation procedure. The perfusion PET scan is a diagnostic imaging test. The tumor ablation procedure is performed according to our standard clinical practice and is not itself a research activity. The use of N-13 ammonia or F-18 fluorodeoxyglucose to image liver perfusion with a PET scanner is the research portion of the procedure. The patient will receive one or two doses of N-13 ammonia (10 mCi (millicurie)/dose) for intraprocedural assessment of ablation results. Not more than two doses will be administered and one or both doses will be administered on the day of the tumor ablation procedure only. The ammonia perfusion scan will not be used to change or modify the ablation procedure.

After the screening procedures confirm that that the participant is eligible to participate in the research study:

- Ammonia Perfusion PET: The participant will be scheduled for the tumor ablation procedure as part of the participant's routine care. If the participant decided to take part in this research study, then the participant will have one or two ammonia perfusion PET scans during the ablation procedure to see if the ablation was successful or not as compared to standard CT scanning. The ammonia perfusion PET scans are the research part of the participant's procedure. The rest of the participant's procedure is not research. The participant will receive one or two doses of the radioactive tracer called N-13 ammonia. This tracer is administered through the same IV (thin tube placed in a vein) used by the Anesthesiologist to give the participant routine medications that relax the participant, prevent pain, and allow the participant to sleep during the procedure. This tracer does not treat the participant's tumor in any way. Instead, the tracer may allow the radiologist to better see how much of the participant's tumor was destroyed.

- Photographs: Photographs may be taken during the procedure. Care will be taken to ensure these do not reveal the participant's identity.

- Clinic visits: The investigators routinely see patients after tumor ablation procedures within one to two weeks after the procedure and then every three months after the procedure for one to two years, and as needed in the future. Accordingly, the clinic visits are routine and not an added research commitment.


Recruitment information / eligibility

Status Completed
Enrollment 33
Est. completion date February 16, 2019
Est. primary completion date February 16, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Adults, 18 years or older

- Referral from an internist, oncologist, or surgeon for liver tumor ablation consultation

- ECOG (Eastern Cooperative Oncology Group) Performance Status < 3

- Liver tumor ablation judged to be appropriate based on clinical assessment in the BWH (Brigham & Women's Hospital) Tumor Ablation Clinic by the tumor ablation interventional radiologist, per standard clinical practice

- Ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

- Uncorrectable coagulopathy (due to bleeding risk)

- Pulmonary disease precluding monitored anesthesia care or general anesthesia

- Severe renal insufficiency, EGFR (estimated glomerular filtration rate) < 30

- Uncontrolled intercurrent illness including, but not limited to ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, significant cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.

- Childs-Pugh Class C cirrhosis

- Occlusive main portal vein thrombosis

- Presence of biliary-enteric anastomosis (due to risk of biliary infection)

- Pregnant women are excluded (because both CT and PET/CT scans involve the use of ionizing radiation which may pose a potential teratogenic effect on the fetus.)

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
N-13 ammonia or F-18 fluorodeoxyglucose
PET tracer
PET scan
PET scan

Locations

Country Name City State
United States Brigham and Women's Hospital Boston Massachusetts
United States Dana-Farber Cancer Institute Boston Massachusetts

Sponsors (2)

Lead Sponsor Collaborator
Dana-Farber Cancer Institute Brigham and Women's Hospital

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number and Percentage of Tumors With Complete, Circumferential Ablation Margin Visibility During FDG PET/CT-guided Liver Ablations (AP-PET-1 v. Contrast-enhanced MRI) For FDG-avid tumors, compare the rates of complete, circumferential ablation margin visibility during FDG PET/CT-guided liver ablations using two imaging techniques: intra-procedural AP-PET-1(research scan #1) and post-procedural contrast enhanced MRI . Discordance rates for complete ablation margin visibility between the two imaging techniques will be calculated. 2 Years
Secondary Does an Inadequate Ablation Margin on PET Predict Local Progression? Compare to MRI? Percentage of tumors with an inadequate margin on PET that progressed locally? Compare to MRI? 2 Years
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