NCT07353554

Application Study of 68Ga-NOTA-BCMA Nanoantibody Imaging in Multiple Myeloma

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 30 (estimated)
• Sponsor: Peking Union Medical College Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

This study intends to employ 68Ga-NOTA-BCMA nanobody PET/CT imaging in patients with multiple myeloma to evaluate the feasibility of this technique for myeloma assessment, analyze the correlation between 68Ga-NOTA-BCMA nanobody uptake intensity and disease staging, tumor burden, and prognosis, explore its value in assessing treatment response and predicting early relapse, and compare its detection rate for myeloma lesions with that of 18F-FDG PET/CT. The results of this study may provide a more sensitive and specific imaging diagnostic method for patients with multiple myeloma and offer a basis for the individualized selection of future BCMA-targeted therapies. This study has been approved by the Ethics Committee of Peking Union Medical College Hospital.

Detailed description

Multiple myeloma is a malignant plasma cell disorder. Real-time dynamic monitoring of the development, progression, and treatment response of myeloma remains an unmet clinical need. The development of a novel non-invasive in vivo detection technique is essential and holds significant importance for improving the prognosis of myeloma patients. Nuclear medicine plays a crucial role in the diagnosis, staging, treatment, and follow-up of multiple myeloma. The commonly used clinical nuclear imaging method, 18F-FDG PET/CT, has certain limitations in detecting myeloma lesions. B-cell maturation antigen (BCMA) is a target that is highly and specifically expressed on the surface of myeloma cells. The 68Ga-labeled nanobody targeting BCMA demonstrates high specificity in detecting myeloma lesions. Compared to traditional antibody-based probes, it offers advantages such as a simpler structure, lower molecular weight, and higher stability, showing promise as a novel non-invasive molecular imaging technique for myeloma evaluation and guiding individualized treatment. Our research group has completed the preparation, labeling, and quality control of the 68Ga-NOTA-BCMA nanobody molecular probe, as well as preclinical studies on its pharmacokinetics, pharmacodynamics, and safety evaluation.In this prospective study, patients diagnosed with multiple myeloma were enrolled to undergo 68Ga-BCMA nanobody imaging before treatment, followed by a repeat scan after treatment, to analyze its detection rate and correlation with clinical tumor burden.

Conditions

• Multiple Myeloma (MM)

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	68Ga-BCMA nanobody PET/CT	On the day of the examination (fasting is not required), an intravenous injection of the 68Ga-NOTA-BCMA nanobody will be administered, followed by PET/CT imaging approximately 0.5 to 1 hour later.
DIAGNOSTIC_TEST	18F-FDG PET/CT	Within 1 to 2 weeks, 18F-FDG PET/CT imaging will be performed, which requires an intravenous injection of 18F-FDG (fasting for at least 4 hours is required) followed by PET/CT imaging approximately 1 hour later.

Timeline

• Start date: 2026-02-01
• Primary completion: 2028-02-01
• Completion: 2028-02-01
• First posted: 2026-01-20
• Last updated: 2026-01-20

Locations

1 site across 1 country: China