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NCT Number: NCT05676489

MeFAMP for Imaging System A Amino Acid Transport in Primary and Metastatic Brain Tumors

This first-in-human study will establish the human safety and radiation dosimetry of the system A amino acid transport substrate, (R)-3-[F-18]fluoro-2-methyl-2-(methylamino)propanoic acid ([F-18]MeFAMP), for positron emission tomography (PET) imaging of primary and metastatic brain tumors. This study will include 3 cohorts: healthy volunteers for whole body dosimetry estimates (n=6-8, Dosimetry Cohort), patients undergoing evaluation for recurrent high grade glioma after radiation therapy (n=10, high grade glioma (HGG) Cohort), and patients with brain metastases from extra-cranial solid tumors before and after radiation therapy (n=10, Metastasis Cohort). Exploratory assessment of the diagnostic accuracy of MeFAMP for distinguishing recurrent/progressive brain tumors from radiation-related treatment effects will also be performed for subsequent trial design. The study will complete accrual and safety assessment in the Dosimetry Cohort before recruiting for the HGG and Metastasis Cohorts.

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Key information

Age range

18 month–89 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Early Phase 1

Primary location

UAB

Birmingham, Alabama, 35294, United States

Location contact

Jonathan McConathy, MD, PhD

PRINCIPAL_INVESTIGATOR

Sebastian Eady, BS

CONTACT

[email protected]

205-996-2636

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

for all cohorts:

  • 18 years of age or older at the time of enrollment
  • Females with childbearing potential must have a negative urine human chorionic gonadotropin (hCG) test on the day of procedure or a serum hCG test within 48 hours prior to the administration MeFAMP.
  • Must have a life expectancy greater than 12 weeks.

Exclusion criteria

for all cohorts:

  • Use of an investigational drug for any indication within 3 months prior to the imaging study.
  • Pregnancy or breast feeding
  • Inability to complete the PET scans.
  • Significant renal or hepatic dysfunction (estimated glomerular filtration rate (GFR) < 60 mL/min)
  • Any condition which may interfere with ability to participate in or complete all study-related activities as assessed by the study team.

6.4.9.3. Inclusion criteria specific to Dosimetry Cohort

  • Normal complete metabolic profile (CMP) and cell blood count (CBC) with differential at baseline.
  • Normal ECG at baseline.

Exclusion criteria

specific to Dosimetry Cohort

  • Major medical problems (e.g. renal, hepatic, inflammatory) that could interfere with biodistribution of MeFAMP as assessed by the study team.

Inclusion criteria

specific to HGG Cohort

  • Grade III or Grade IV glioma previously treated with radiation therapy
  • Standard of care contrast-enhanced MRI showing an enhancing lesion at least 1-cm in maximum dimension that is equivocal or suspicious for recurrent glioma.
  • Eastern Cooperative Oncology Group (ECOG) performance score of 2 or better

Inclusion criteria

specific to Metastasis Cohort

  • At least one brain metastasis from melanoma, lung cancer (small or non-small cell), or breast cancer measuring at least 1-cm in maximum dimension on contrast-enhanced MRI
  • Plan for stereotactic radiation therapy within 2 weeks of initial MeFAMP-PET/MRI scan.
  • ECOG performance score of 2 or better

Inclusion of Women and Minorities

Patients 18 years of age or older will be eligible for study participation. No other discriminatory factors, including age, sex, or ethnic background will be used to determine eligibility. Every effort will be made to ensure that minorities are recruited for study participation.

Treatment and study plan

[F-18]MeFAMP PET

Drug

Study participants will receive the fluorine-18 labeled system A amino acid transport substrate, (R)-3-[F-18]fluoro-2-methyl-2-(methylamino)propanoic acid ([F-18]MeFAMP), for positron emission tomography (PET). Participants in Cohorts 1 and 2 will receive a single administration of the study drug. Participants in cohort 3 will receive 2 administrations of the study drug, once before standard of care radiation therapy for brain metastases and once after.

Primary outcomes

  1. Human dosimetry for [F-18]MeFAMP.

    Time frame: From injection to 45 minutes, 2 hours, and 4 hours after PET agent administration.

    The changing concentrations of radioactivity in normal organs and tissues will be measured in each participant at 3 time points after [F-18]MeFAMP injection in Cohort 1. These data will be used to estimate human dosimetry as effective dose in milliSieverts.

  2. Safety of [F-18]MeFAMP

    Time frame: Lab values, ECG and adverse events will be assessed on the day of the study before and after administration of [F-18]MeFAMP for cohort 1.

    Laboratory values including complete metabolic panel (CMP) and complete blood count with differential (CBC with diff) and adverse events will be assessed before and after [F-18]MeFAMP administration in cohort 1. Electrocardiograms (ECG) will also be performed before and after study drug administration in cohort 1 to assess for QT prolongation and changes in heart rate, rhythm, and ECG waveforms that could represent a safety signal due to the study drug.

Study contacts

Contact information is provided by the study sponsor or research team.

Sebastian Eady, BS

CONTACT

[email protected]

205-934-1082

Sponsors and collaborators

Lead sponsor

University of Alabama at Birmingham

Other

Registry information

Important dates

Study start
2027
Primary completion
2029
Study completion
2029
First posted
Jan 9, 2023
Registry last updated
Jun 2, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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