RECRUITINGINTERVENTIONAL

Research on the Application of 99mTc-TCR-FAPI SPECT Imaging in Rheumatoid Arthritis

About This Trial

This study proposes to evaluate 99mTc-CTR-FAPI SPECT imaging as a cost-effective, low-radiation, and widely accessible alternative to 68Ga-FAPI PET/CT for assessing synovial lesions in RA patients, aiming to validate its diagnostic consistency with both PET/CT and physical examinations while correlating imaging findings with clinical disease activity metrics to establish a practical tool for long-term RA monitoring.

Who May Be Eligible (Plain English)

Who May Qualify: 1. Age: 18-75 years old; 2. Meet the classification criteria for rheumatoid arthritis of the American College of Rheumatology/European Union for Rheumatology in 2010; 3. The highest disease activity in clinical practice (CDAI or SDAI score Who Should NOT Join This Trial: 1. Patients with other autoimmune conditions (where your immune system attacks your own body)s; 2. Patients with concurrent tumors; 3. Women who are pregnant or planning to become pregnant, women in the preconception period, pregnant and lactating women, and women with child-rearing plans during the study period; Subjects of childbearing age need to take effective contraceptive measures during the research process; 4. Active infection 5. Suffering from claustrophobia or other mental disorders, with poor compliance resulting in inability to cooperate with this researcher; (6) Situations where other researchers consider it inappropriate to participate in this clinical trial. Always talk to your doctor about whether this trial is right for you.

Original Eligibility Criteria

View original clinical language

Inclusion Criteria: 1. Age: 18-75 years old; 2. Meet the classification criteria for rheumatoid arthritis of the American College of Rheumatology/European Union for Rheumatology in 2010; 3. The highest disease activity in clinical practice (CDAI or SDAI score Exclusion Criteria: 1. Patients with other autoimmune diseases; 2. Patients with concurrent tumors; 3. Women who are pregnant or planning to become pregnant, women in the preconception period, pregnant and lactating women, and women with child-rearing plans during the study period; Subjects of childbearing age need to take effective contraceptive measures during the research process; 4. Active infection 5. Suffering from claustrophobia or other mental disorders, with poor compliance resulting in inability to cooperate with this researcher; (6) Situations where other researchers consider it inappropriate to participate in this clinical trial.

Treatments Being Tested

DIAGNOSTIC_TEST

68Ga-FAPI PET/CT and 99mTc-CTR-FAPI SPECT

For 68Ga-FAPI PET/CT scan，each patient was injected with 1.8-2.2 MBq/kg (0.05-0.06 mCi/kg) body weight of 68Ga-FAPI. PET/CT from skull to feet was performed 60±5 min post-injection. For 99mTc-CTR-FAPI SPECT scan:each patient was injected with 10-20mCi 99mTc-CTR-FAPI . Planar SPECT scan and SPECT/CT were performed 60±5 min post-injection.

Locations (1)

Peking Union Medical College Hospital

Beijing, Beijing Municipality, China