Clinical trial NCT06753513: Clinical Application of 99mTc-FDPH46 SPECT/CT Imaging in Malignant Solid Tumor: a Prospective Exploratory Study
Official title: Clinical Application of 99mTc-FDPH46 SPECT/CT Imaging in Malignant Solid Tumor: a Prospective Exploratory Study
Study type: OBSERVATIONAL
Overall status: NOT_YET_RECRUITING
Conditions: Malignant Tumors
Solid Tumor Malignancy
Keywords: 99mTc
FDPH46
SPECT
Malignant Solid Tumor
Lead sponsor: Zhejiang University
Sponsor class: OTHER
Collaborators: name: First Affiliated Hospital of Zhejiang University
First posted: 2024-12-31
Enrollment: 20
Sex: ALL
Minimum age (years): 18
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients who are clinically suspected or diagnosed with malignant solid tumors.

Brief summary: The goal of this observational study aims to preliminarily evaluate the diagnostic efficacy of 99mTc-FDPH46 SPECT/CT in malignant solid tumors (compared to the pathological gold standard). The main questions it aims to answer are:

* What is the diagnostic efficacy of 99mTc-FDPH46 in malignant solid tumors, compared to the pathological gold standard?
* What is the biodistribution, tumor uptake and safety of 99mTc-FDPH46 SPECT/CT in patients with malignant solid tumors?

Participant Will:

• Patients with clinically suspected or diagnosed malignant solid tumors who are willing to undergo 99mTc-FDPH46 SPECT/CT examination and sign an informed consent form.

Detailed description: Patients who are clinically assessed as suspected or diagnosed with malignant solid tumors will receive an intravenous injection of 20-25mCi of 99mTc-FDPH46. Whole-body planar scintigraphy will be performed at 10, 30, 90, 150, and 240 minutes post-injection to obtain dynamic biodistribution images. Additionally, 99mTc-FDPH46 SPECT/CT imaging will be conducted 60-90 minutes after the intravenous injection to acquire both whole-body planar scintigraphy and SPECT/CT tomographic fusion images. After the scans are completed, patients will be observed in the waiting room for 1 hour before they are allowed to return.During the follow-up visit after the examination, the researchers will collect the patients' clinical information and any changes in symptoms, and record them in the medical records. All subjects will be followed up once on the same day after the SPECT/CT scan and again one week later.

Eligibility criteria: Inclusion Criteria:

1. Patients who are clinically suspected or diagnosed with malignant solid tumors.
2. Ages between 18 to 80 years old.
3. Stable vital signs, ECOG score of 0-2, capable of tolerating and cooperating with the 99mTc-FDPH46 SPECT/CT examination.
4. Subjects who are willing to undergo the 99mTc-FDPH46 SPECT/CT examination and have signed the informed consent form.

Exclusion Criteria:

1. Those who can not understand, comply with the research protocol or are unable to sign the informed consent form.
2. Contraindications for SPECT imaging (including pregnant women, nursing women, women of childbearing age with recent plans to conceive, etc.).
3. Unstable vital signs, ECOG score \>2, unable to tolerate or cooperate with the 99mTc-FDPH46 SPECT/CT examination process.

Primary outcomes:
measure: Compared with the pathological gold standard, assess the diagnostic efficacy of 99mTc-FDPH46 in malignant solid tumors.
timeFrame: 2024.12-2026.10
Secondary outcomes:
measure: Assess the safety, biodistribution, and tumor uptake of 99mTc-FDPH46 SPECT/CT in patients with malignant solid tumors.
timeFrame: 2024.12-2026.12
Other outcomes:
Locations:
city: Hangzhou
country: China
facility: No. 79, Qingchun Road, Shangcheng District, Hangzhou City, Zhejiang Province, China.
state: Zhejiang
Study officials:
References:
citation: Ruan Q, Feng J, Jiang Y, Zhang X, Duan X, Wang Q, Yin G, Xiao D, Zhang J. Preparation and Bioevaluation of 99mTc-Labeled FAP Inhibitors as Tumor Radiotracers to Target the Fibroblast Activation Protein. Mol Pharm. 2022 Jan 3;19(1):160-171. doi: 10.1021/acs.molpharmaceut.1c00712. Epub 2021 Dec 14.
citation: Ruan Q, Zhou C, Wang Q, Kang F, Jiang Y, Li G, Feng J, Zong S, Zhang J, Wang J. A Simple Kit Formulation for Preparation and Exploratory Human Studies of a Novel 99mTc-Labeled Fibroblast Activation Protein Inhibitor Tracer for Imaging of the Fibroblast Activation Protein in Cancers. Mol Pharm. 2023 Jun 5;20(6):2942-2950. doi: 10.1021/acs.molpharmaceut.2c01094. Epub 2023 Apr 21.
citation: Ruan Q, Wang Q, Jiang Y, Feng J, Yin G, Zhang J. Synthesis and Evaluation of 99mTc-Labeled FAP Inhibitors with Different Linkers for Imaging of Fibroblast Activation Proteins in Tumors. J Med Chem. 2023 Apr 13;66(7):4952-4960. doi: 10.1021/acs.jmedchem.2c02062. Epub 2023 Mar 27.
citation: Ruan Q, Ding D, Diao L, Feng J, Yin G, Jiang Y, Wang Q, Han P, Jiang J, Zhang J. Synthesis and Preclinical Evaluation of Novel 99mTc-Labeled FAPI-46 Derivatives with Significant Tumor Uptake and Improved Tumor-to-Nontarget Ratios. J Med Chem. 2024 Feb 22;67(4):3190-3202. doi: 10.1021/acs.jmedchem.4c00031. Epub 2024 Feb 6.
citation: Lindner T, Altmann A, Kramer S, Kleist C, Loktev A, Kratochwil C, Giesel F, Mier W, Marme F, Debus J, Haberkorn U. Design and Development of 99mTc-Labeled FAPI Tracers for SPECT Imaging and 188Re Therapy. J Nucl Med. 2020 Oct;61(10):1507-1513. doi: 10.2967/jnumed.119.239731. Epub 2020 Mar 13.
citation: Liu Y, Zhang Q, Zhang Y, Wang J, Wu Y, Yang G, Shi J, Wang F, Xu Z, Jing H. 99mTc-Labeled FAPI SPECT Imaging in Idiopathic Pulmonary Fibrosis: Preliminary Results. Pharmaceuticals (Basel). 2023 Oct 9;16(10):1434. doi: 10.3390/ph16101434.
citation: Luo X, Zhang Z, Cheng C, Wang T, Fang D, Zuo C, Yuan G, Li R, Li X. SPECT Imaging with Tc-99m-Labeled HYNIC-FAPI-04 to Extend the Differential Time Window in Evaluating Tumor Fibrosis. Pharmaceuticals (Basel). 2023 Mar 10;16(3):423. doi: 10.3390/ph16030423.
citation: Jiang Y, Tian Y, Feng B, Zhao T, Du L, Yu X, Zhao Q. A novel molecular imaging probe [99mTc]Tc-HYNIC-FAPI targeting cancer-associated fibroblasts. Sci Rep. 2023 Mar 6;13(1):3700. doi: 10.1038/s41598-023-30806-6.
citation: Ma M, Yang G, Zhao M, Liu Y, Ge X, Jia B, Gao S. Synthesis and Preliminary Study of 99mTc-Labeled HYNIC-FAPi for Imaging of Fibroblast Activation Proteins in Tumors. Mol Pharm. 2024 Feb 5;21(2):735-744. doi: 10.1021/acs.molpharmaceut.3c00886. Epub 2024 Jan 9.
citation: Jia X, Li X, Jia B, Yang Y, Wang Y, Liu Y, Ji T, Xie X, Yao Y, Qiu G, Deng H, Zhu Z, Chen S, Yang A, Gao R. The role of [99mTc]Tc-HFAPi SPECT/CT in patients with malignancies of digestive system: first clinical experience. Eur J Nucl Med Mol Imaging. 2023 Mar;50(4):1228-1239. doi: 10.1007/s00259-022-06068-1. Epub 2022 Dec 7.
citation: Trujillo-Benitez D, Luna-Gutierrez M, Ferro-Flores G, Ocampo-Garcia B, Santos-Cuevas C, Bravo-Villegas G, Morales-Avila E, Cruz-Nova P, Diaz-Nieto L, Garcia-Quiroz J, Azorin-Vega E, Rosato A, Melendez-Alafort L. Design, Synthesis and Preclinical Assessment of 99mTc-iFAP for In Vivo Fibroblast Activation Protein (FAP) Imaging. Molecules. 2022 Jan 1;27(1):264. doi: 10.3390/molecules27010264.
citation: Boschi A, Urso L, Uccelli L, Martini P, Filippi L. 99mTc-labeled FAPI compounds for cancer and inflammation: from radiochemistry to the first clinical applications. EJNMMI Radiopharm Chem. 2024 May 2;9(1):36. doi: 10.1186/s41181-024-00264-0.