Trial reportThe Journal of clinical investigation2025
A whole-body imaging technique for tumor-specific diagnostics and screening of B7H3-targeted therapies.
Trial report in The Journal of clinical investigation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06454955 (Study of B7-H3 Mediated Tumor Immune Response Using a Whole-Body Kinetic Approach in Whole-Body PET), which is not on this map. Cited by 13 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Study of B7-H3 Mediated Tumor Immune Response Using a Whole-Body Kinetic Approach in Whole-Body PET
Who cites it
13 citing papers in PubMed.
- Parametric imaging of dynamic long-axial-field-of-view PET scans: Technical challenges, statistical insights and clinical applications.Zeitschrift fur medizinische Physik · 2026Review
- Specific PET Imaging for Precision Management of Lung Cancer: Advances, Clinical Translation and Future Directions.Chemical & biomedical imaging · 2026Review
- Fluorescence-Guided Surgery of Rhabdomyosarcoma Using a B7-H3 Targeted Antibody-Fluorophore Conjugate.Molecular pharmaceutics · 2026Article
- B7-H4-targeted radiotheranostics enable precise imaging and potent therapy across solid tumor models.Science advances · 2026Article
- Gallium-Containing Agents for Tumor Diagnosis and Therapy: Current Status and Future Prospects.Small (Weinheim an der Bergstrasse, Germany) · 2026Review
- Development and Preclinical Evaluation ofJournal of medicinal chemistry · 2026Article
- EfficientInternational journal of molecular sciences · 2026Article
- Anti-cancer immune priming with β-radioligand therapy using a novel high affinity antibody selectively targeting the 4Ig-Isoform of B7-H3.Theranostics · 2026Article
- Integrated radio-theranostics using a [Theranostics · 2026Article
- Emerging ImmunoPET probes for precision cancer immunotherapy: molecular targets and translational applications.Frontiers in oncology · 2026Review
- Monoclonal Antibodies and Derivatives: Therapeutic Tools for Cancer.Oncology research · 2026Review
- Preclinical Positron Emission Tomography Imaging of B7-H3 Expression Using Affibody Molecules Labeled with Gallium-68.ACS pharmacology & translational science · 2025Article
- Selection of the optimal chelator for labeling of DARPin Ec1 with gallium-68 for PET imaging of EpCAM expression.EJNMMI radiopharmacy and chemistry · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUNDB7H3, also known as CD276, is notably overexpressed in various malignant tumor cells in humans, with extremely high expression rates. The development of a radiotracer that targets B7H3 may provide a universal tumor-specific imaging agent and allow the noninvasive assessment of the whole-body distribution of B7H3-expressing lesions.METHODSWe enhanced and optimized the structure of an affibody (ABY) that targets B7H3 to create the radiolabeled radiotracer [68Ga]Ga-B7H3-BCH, and then, we conducted both foundational experiments and clinical translational studies.RESULTS[68Ga]Ga-B7H3-BCH exhibited high affinity (equilibrium dissociation constant [KD] = 4.5 nM), and it was taken up in large amounts by B7H3-transfected cells (A549CD276 and H1975CD276 cells); these phenomena were inhibited by unlabeled precursors. Moreover, PET imaging of multiple xenograft models revealed extensive [68Ga]Ga-B7H3-BCH uptake by tumors. In a clinical study including 20 patients with malignant tumors, the [68Ga]Ga-B7H3-BCH signal aggregated in both primary and metastatic lesions, surpassing fluorine-18 fluorodeoxyglucose (18F-FDG) in overall diagnostic efficacy for tumors (85.0% vs. 81.7%), including differentiated hepatocellular and metastatic gastric cancers. A strong correlation between B7H3 expression and [68Ga]Ga-B7H3-BCH uptake in tumors was observed, and B7H3 expression was detected with 84.38% sensitivity and 100% specificity when a maximum standardized uptake value (SUVmax) of 3.85 was set as the cutoff value. Additionally, B7H3-specific PET imaging is expected to predict B7H3 expression levels in tumor cells, intratumoral stroma, and peritumoral tissues.CONCLUSIONIn summary, [68Ga]Ga-B7H3-BCH has potential for the noninvasive identification of B7H3 expression in systemic lesions in patients with malignant tumors. This agent has prospects for improving pretreatment evaluation, predicting therapeutic responses, and monitoring resistance to therapy in patients with malignancies.TRIAL REGISTRATIONClinicalTrials.gov NCT06454955.FUNDINGThis research was financially supported by the Natural Science Foundation of Beijing Municipality (no. 7242266), the National Natural Science Foundation of China (no. 82202201), and the Young Elite Scientists Sponsorship Program by China Association for Science and Technology (CAST) (no. YESS20220230).
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