MedTrace Logo

Diagnostic Value of CXCR4-targeted PET/CT in ACTH-dependent and Independent Cushing's Syndrome

NCT07350707 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 160

Last updated 2026-01-20

No results posted yet for this study

Summary

In previous clinical practice, 68Ga-Pentixafor PET/CT has demonstrated promising diagnostic utility in various neuroendocrine tumors by targeting CXCR4, a chemokine receptor overexpressed in several ACTH-secreting neoplasms. Building on this, and leveraging the Nuclear Medicine expertise at Peking Union Medical College Hospital, we aim to conduct a prospective observational study investigating the role of CXCR4-targeted PET/CT imaging in patients with confirmed or suspected Cushing's syndrome. This study will focus on evaluating the capability of \^68Ga-Pentixafor PET/CT to assist in the differential diagnosis of ACTH-dependent and ACTH-independent subtypes, as well as in the localization of primary lesions in challenging cases. Imaging performance will be assessed in comparison with conventional modalities and/or 68Ga-DOTATATE PET/CT when available.

Conditions

  • Cushing s Syndrome

Interventions

DRUG

68Ga-Pentixafor

All enrolled participants will undergo \^68Ga-Pentixafor PET/CT to evaluate CXCR4 expression patterns and assist in the differential diagnosis of ACTH-dependent and ACTH-independent subtypes. In cases where ectopic ACTH syndrome (EAS) is clinically suspected-such as in patients with inconclusive pituitary imaging or discordant biochemical profiles-an additional \^68Ga-DOTATATE PET/CT scan will be performed as part of the diagnostic workup. This allows for a head-to-head comparison between CXCR4-targeted and somatostatin receptor (SSTR)-targeted imaging modalities in the localization of ACTH-secreting tumors.

Sponsors & Collaborators

  • Peking Union Medical College Hospital

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
10 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-06-12
Primary Completion
2026-03-01
Completion
2027-02-12

Countries

  • China

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07350707 on ClinicalTrials.gov