Determining the Biodistribution of an Imaging Tracer (68Ga-FAPi-46) in Patients With Solid Tumors or Hematologic Cancers

NCT07118176 — Phase 1, Active not recruiting, 30 participants, Jonsson Comprehensive Cancer Center

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PET Imaging Study of 68Ga-FAPI-46 Biodistribution in Cancer Patients

RegistryNCT07118176
StatusActive not recruiting
PhasePhase 1
Study typeInterventional; na, single group, masking: none, diagnostic
Enrollment30 (Estimated)
SponsorJonsson Comprehensive Cancer Center (Other)
ConditionsAnal Carcinoma, Bladder Carcinoma, Breast Carcinoma, Cervical Carcinoma, Cholangiocarcinoma, Colorectal Carcinoma, Esophageal Carcinoma, Gastric Carcinoma, Head and Neck Carcinoma, Hematopoietic and Lymphatic System Neoplasm, Hepatocellular Carcinoma, Lung Carcinoma, Malignant Adrenal Gland Neoplasm, Malignant Brain Neoplasm, Malignant Neoplasm of Unknown Primary, Malignant Solid Neoplasm, Malignant Testicular Neoplasm, Malignant Uterine Neoplasm, Neuroendocrine Neoplasm, Ovarian Carcinoma, Pancreatic Carcinoma, Penile Carcinoma, Pleural Carcinomatosis, Primary Peritoneal Carcinoma, Prostate Carcinoma, Salivary Gland Carcinoma, Sarcoma, Skin Carcinoma, Solitary Fibrous Tumor, Thymus Carcinoma, Thyroid Gland Carcinoma, Thyroid Gland Medullary Carcinoma, Urothelial Carcinoma, Vaginal Carcinoma
InterventionsComputed Tomography, Fludeoxyglucose F-18, Gallium Ga 68 FAPi-46, Positron Emission Tomography (Procedure, other, radiation)
Datesstart 2025-08-01, primary completion 2026-06-23, completion 2027-09-07 (estimated), first posted 2025-08-12, last updated 2026-10-20
Locations1 site in United States

Related Papers Related Patents Related Grants Related Experts
All trials for Anal Carcinoma All trials for Bladder Carcinoma All trials of Computed Tomography All trials of Fludeoxyglucose F-18

-Summary

This phase I trial is evaluating a new imaging tracer (68Ga-FAPi-46) with positron emission tomography (PET)/computed tomography (CT) to determine where and to which degree the tracer (68Ga-FAPi-46) accumulates in normal and cancer tissues (the biodistribution) in patients with solid tumors or hematologic (blood) cancers. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case of this research, 68Ga-FAPi-46. Because some cancers take up 68Ga-FAPi-46, it can be seen with PET. CT utilizes x-rays that traverse the body from the outside. CT images provide an exact outline of organs and potential inflammatory tissue where it occurs in a patient's body. Combining a PET scan with a CT scan can help make the image easier to interpret. PET/CT scans are hybrid scanners that combine both modalities into a single scan during the same examination.

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+Detailed description

PRIMARY OBJECTIVE:

I. To define the biodistribution of gallium Ga 68 FAPi-46 (68Ga-FAPi-46) in normal and cancer tissues of patients with various malignancies measured by standardized uptake values (SUV).

SECONDARY OBJECTIVE:

I. To assess the 68Ga-FAPI-46 biodistribution correlation with fludeoxyglucose F-18 (18F-FDG) biodistribution and to define the frequency of the following phenotypes (FAP+/ FDG+, FAP-/ FDG+, FAP+/ FDG-, FAP-/ FDG-).

OUTLINE:

Patients receive 68Ga-FAPi-46 intravenously (IV) and then, 20-90 minutes later, undergo PET/CT over 20-50 minutes. Patients may undergo optional 18F-FDG PET/CT on study.

+Arms and interventions

ArmTypeInterventionsDescription
Diagnostic (68Ga-FAPi-46 PET/CT)ExperimentalProcedure: Computed Tomography; Other: Fludeoxyglucose F-18; Radiation: Gallium Ga 68 FAPi-46; Procedure: Positron Emission TomographyPatients receive 68Ga-FAPi-46 IV and then, 20-90 minutes later, undergo PET/CT over 20-50 minutes. Patients may undergo optional 18F-FDG PET/CT on study.
  • Computed Tomography (Procedure), also known as CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, tomography: Undergo PET/CT
  • Fludeoxyglucose F-18 (Other), also known as 18FDG, FDG, Fludeoxyglucose (18F), fludeoxyglucose F 18, Fludeoxyglucose F18, Fluorine-18 2-Fluoro-2-deoxy-D-Glucose, Fluorodeoxyglucose F18: Given IV
  • Gallium Ga 68 FAPi-46 (Radiation), also known as (68GA)Ga-FAPI-46, 68Ga-FAPi-46, FAPI-46 GA-68, Gallium-68-FAPI-46: Given IV
  • Positron Emission Tomography (Procedure), also known as Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron emission tomography (procedure), Positron Emission Tomography Scan, Positron-Emission Tomography, PT: Undergo PET/CT

+Outcome measures

Primary outcomes

  • Biodistribution of gallium Ga 68 FAPi-46 (68Ga-FAPi-46) [Up to 2 years]: Will be evaluated in normal and cancer tissues by standardized uptake values to determine where and to which degree 68Ga-FAPi-46 accumulates in normal and cancer tissues.

Secondary outcomes

  • Fludeoxyglucose F-18 (18F-FDG) biodistribution [Up to 2 years]: Will assess the correlation between 68Ga-FAPi-46 biodistribution and 18F-FDG biodistribution and define the frequency of the following phenotypes: 68Ga-FAPi-46 (FAP)+/fludeoxyglucose F-18 (FDG)+, FAP-/FDG+, FAP+/FDG-, FAP-/FDG-.

+Eligibility

Sex: All, ages: 18 Years to any

Inclusion Criteria:

* Patients with the following suspected or diagnosed cancer types:

  * Adrenal cancer
  * Anal cancer
  * Bladder cancer
  * Brain cancer
  * Breast cancer
  * Cancer of unknown primary (CUP)
  * Cervical cancer
  * Cholangiocarcinoma
  * Colorectal cancer
  * Esophageal cancer
  * Gastric cancer
  * Head and neck cancer
  * Hematologic cancer
  * Hepatocellular carcinoma
  * Lung cancer
  * Medullary thyroid cancer
  * Neuroendocrine neoplasias
  * Ovarian cancer
  * Pancreatic cancer
  * Penile cancer
  * Peritoneal cancer
  * Pleural cancer
  * Prostate cancer
  * Sarcoma
  * Salivary gland cancer
  * Solitary fibrous tumor
  * Skin cancer
  * Testicular cancer
  * Thymus cancer
  * Thyroid cancer
  * Urothelial cancer
  * Uterus cancer
  * Vaginal cancer
* Patients are ≥ 18 years old at the time of the radiotracer administration
* Patient can provide written informed consent
* Patient is able to remain still for duration of imaging procedure (up to one hour)

Exclusion Criteria:

* Patient is pregnant or nursing
* Patient has underlying disease which, based on the judgment of the investigator, might interfere with the collection of high-quality data

+Locations (1)

FacilityCityCountryStatus
UCLA / Jonsson Comprehensive Cancer CenterLos Angeles, CaliforniaUnited States

+Investigators

  • Jeremie Calais, Principal investigator, UCLA / Jonsson Comprehensive Cancer Center