Evaluating imaging techniques for detecting recurrent ovarian cancer

Evaluation of 68Ga-FAPI-46 and 18F-FDG PET/CT Imaging for Detecting Recurrent Tumor Lesions in Patients of Ovarian Cancer With CA125 Elevation From Complete Response After Therapy

NA · Chang Gung Memorial Hospital · NCT06232122

This study is testing two different imaging methods to see which one is better at finding recurring ovarian cancer in patients whose CA125 levels have gone up after treatment.

Quick facts

PhaseNA
Study typeInterventional
Enrollment45 (estimated)
Ages30 Years to 80 Years
SexFemale
SponsorChang Gung Memorial Hospital (other)
Locations1 site (Taoyuan City)
Trial IDNCT06232122 on ClinicalTrials.gov

What this trial studies

This study aims to assess the effectiveness of two imaging techniques, 68Ga-FAPI-46 and 18F-FDG PET/CT, in detecting recurrent tumor lesions in patients with ovarian cancer who have shown an elevation in CA125 levels after achieving a complete response to therapy. The research will involve a prospective cohort of patients at a single institution, focusing on those whose CA125 levels indicate potential recurrence. By comparing the diagnostic performances of both imaging methods, the study seeks to improve management strategies for ovarian cancer patients.

Who should consider this trial

Good fit: Ideal candidates for this study are women aged 30 to 80 with pathologically proven ovarian cancer who have achieved a complete response after therapy and have elevated CA125 levels.

Not a fit: Patients with a history of other malignancies, those who are pregnant or lactating, or individuals unable to undergo the required imaging procedures may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more accurate detection of recurrent ovarian cancer, allowing for timely intervention and improved patient outcomes.

How similar studies have performed: Previous studies have shown that 18F-FDG PET/CT can modify management in a significant number of patients, indicating that this approach has potential, though the use of 68Ga-FAPI-46 is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pathologically proven ovarian cancer with complete response after therapy
* Age between 30 and 80
* Elevation of serum CA125 value above the normal range (\>35 U/mL) or doubling of serum CA125 value within the normal range
* ECOG performance status grade 0 or 1 and willing to receive further therapy if disease recurrence is confirmed
* Willing to enter this prospective study with signed informed consent form

Exclusion Criteria:

* Patients with history of other malignancy
* Patients who are pregnant or lactating
* Patients with fasting fingerstick glucose level higher than 200 mg/dl
* Known allergic reactions to components of the radiopharmaceutical solutions for intravenous injection for 68Ga-FAPI-46 or 18F-FDG imaging studies
* Patients who are incapable of lying still for 30 minutes to receive the PET/CT scan as assessed by investigators

Where this trial is running

Taoyuan City

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.

View on ClinicalTrials.gov →

Conditions: Ovarian Cancer, 68Ga-FAPI-46, 18F-FDG, CA-125

Last reviewed 2026-05-15 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.