Using 18F-FSPG PET/CT scans to assess treatment response in esophageal cancer

18F-FSPG PET/CT as a Non-Invasive Imaging Biomarker for Treatment Response to Chemoradiation in Esophageal Cancer

Observational M.D. Anderson Cancer Center · NCT06549413

This study is testing if a special type of scan can help find tumors and see how well treatment is working for people with advanced esophageal cancer.

Quick facts

Study typeObservational
Enrollment60 (estimated)
Ages18 Years and up
SexAll
SponsorM.D. Anderson Cancer Center Academic / other
Drugs / interventionsradiation, chemotherapy
Locations1 site (Houston, Texas)
Trial IDNCT06549413 on ClinicalTrials.gov

What this trial studies

This observational study aims to evaluate how 18F-FSPG PET/CT imaging can detect tumors in patients with locally advanced esophageal cancer undergoing chemoradiation. The study will involve patients who have untreated esophageal carcinoma greater than 2 cm and will assess the relationship between imaging results and treatment response. Participants will undergo PET/CT scans to gather data on tumor detection and treatment efficacy without any interventional procedures.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with untreated locally advanced esophageal cancer who are scheduled to receive concurrent systemic therapy and radiation.

Not a fit: Patients who are pregnant, lactating, or have significant body weight or health issues that prevent imaging will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a non-invasive method to better assess treatment responses in esophageal cancer patients, potentially leading to improved management strategies.

How similar studies have performed: While the use of PET imaging in cancer treatment assessment is established, the specific application of 18F-FSPG PET/CT in esophageal cancer treatment response is relatively novel and not extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* \* ≥ 18 years of age

  * Patients with locally advanced esophageal cancer
  * Patients with untreated documented carcinoma of the esophagus that is \> 2 cm who are going to receive systemic therapy concurrently with radiation as primary therapy
  * Ability to provide written informed consent in accordance with institutional policies
  * Female subjects of childbearing potential must have a negative serum or urine pregnancy test within 1 week of the proposed investigational PET/CT scan(s) prior to injection of the investigational radiopharmaceutical

Exclusion Criteria:

* \* Body weight ≥ 400 pounds or body habitus or disability that will not permit the imaging protocol to be performed

  * Pregnant or lactating females
  * Have an allergy to intravenous contrast
  * eGFR \< 30

Where this trial is running

Houston, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Esophageal Carcinoma
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.