Feasibility of [11C]Acetate-PET in LAM and TSC

Description

This study aims to assess \[11C\]acetate positron emission tomography (PET)/computed tomography (CT) as a biomarker for renal angiomyolipomas and pulmonary lymphangioleiomyomatosis (LAM) and an early biomarker of response to rapamycin in LAM patients. \[11C\]Acetate is a radioactive form of acetate, a nutrient commonly processed in our body's cells to generate fat and energy. Preclinical studies support the hypothesis that TSC tumors enhance lipid synthesis compared to normal tissues, suggesting that quantification of \[11C\]acetate in these tumors by PET/CT may provide a metabolic biomarker of disease. Participants in the study will undergo 1 or 2 PET/CT scans over 3 to 6 months at the Massachusetts General Hospital (Boston, MA). \[11C\]acetate is administered through an intravenous catheter. This small amount of radioactivity is short-lived and eliminated from the body within a few hours.

Conditions

Lymphangioleiomyomatosis, Tuberous Sclerosis Complex

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Study Overview

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Study Details

Study overview

This study aims to assess \[11C\]acetate positron emission tomography (PET)/computed tomography (CT) as a biomarker for renal angiomyolipomas and pulmonary lymphangioleiomyomatosis (LAM) and an early biomarker of response to rapamycin in LAM patients. \[11C\]Acetate is a radioactive form of acetate, a nutrient commonly processed in our body's cells to generate fat and energy. Preclinical studies support the hypothesis that TSC tumors enhance lipid synthesis compared to normal tissues, suggesting that quantification of \[11C\]acetate in these tumors by PET/CT may provide a metabolic biomarker of disease. Participants in the study will undergo 1 or 2 PET/CT scans over 3 to 6 months at the Massachusetts General Hospital (Boston, MA). \[11C\]acetate is administered through an intravenous catheter. This small amount of radioactivity is short-lived and eliminated from the body within a few hours.

Feasibility Study of [11C]Acetate Positron Emission Tomography (PET) as an Indicator of Early Response to Rapamycin in Lymphangioleiomyomatosis (LAM) Patients

Feasibility of [11C]Acetate-PET in LAM and TSC

Condition
Lymphangioleiomyomatosis
Intervention / Treatment

-

Contacts and Locations

Boston

Brigham and Women's Hospital, Boston, Massachusetts, United States, 02115

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * diagnosis of LAM (or TSC-LAM)
  • * age 18 or over
  • * at least one renal angiomyolipoma (at least 1 cm in each diameter) confirmed by CT or MRI
  • * no prior treatment with rapamycin/rapalogs OR candidate for initiating treatment with rapamycin/rapalogs OR under treatment with rapamycin/rapalogs for minimum 3 months and maximum of 1 year
  • * under treatment with rapamycin or rapalogs for \< 3 months or \> 1 year
  • * participated in research studies involving radiation exposure (\> 50 mSv/year) in the past 12 months

Ages Eligible for Study

18 Years to

Sexes Eligible for Study

FEMALE

Accepts Healthy Volunteers

No

Collaborators and Investigators

Brigham and Women's Hospital,

Carmen P Priolo, MD PhD, PRINCIPAL_INVESTIGATOR, Brigham and Women's Hospital

Study Record Dates

2023-12-31