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| Name | Class |
|---|---|
| Xiangya Hospital of Central South University | OTHER |
| West China Hospital | OTHER |
| Shanghai Zhongshan Hospital | OTHER |
| Shanghai Pulmonary Hospital, Shanghai, China |
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AnchorDx is using circulating tumor DNA (ctDNA) methylation analysis by next-generation sequencing (NGS) to develop a blood-based assay for differentiating benign and malignant pulmonary nodules early. The purpose of this study is to evaluate the diagnostic performance of this assay in patients with pulmonary nodules.
This is a prospective, multi-center, observational cohort study and seeks to enroll 10,560 participants with pulmonary nodules smaller than 3 cm in diameter from 21 hospitals in China. All participants will be followed up with chest CT or low-dose computed tomography (LDCT) scans for 2-3 years ( baseline, 3 months, 6 months, 12 months, 24 months and 36 months). Their blood samples, CT or LDCT scans data, and clinical data will be collected at each visit and Formalin-fixed paraffin-embedded (FFPE) tissues will be collected when participants who receive pneumonectomy or percutaneous lung biopsy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Prospective Cohort | This is a prospectively enrolling cohort study and a stratified case-cohort design will be employed to select malignant pulmonary nodules cases and benign pulmonary nodules subjects who will be assayed. All participants will be followed up with chest CT or low-dose computed tomography (LDCT) scans for 2-3 years, and take the diagnostic test, ctDNA methylation analysis by NGS, at each visit. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ctDNA methylation analysis by NGS | Diagnostic Test | A blood-based assay for differentiating benign and malignant pulmonary nodules early using circulating tumor DNA (ctDNA) methylation analysis by next-generation sequencing (NGS) |
| Measure | Description | Time Frame |
|---|---|---|
| The diagnostic performance of the blood-based assay for differentiating benign and malignant pulmonary nodules early using circulating tumor DNA (ctDNA) methylation analysis by next-generation sequencing (NGS) | The efficacy of the blood-based ctDNA methylation assay comparing with pathologic diagnosis, the gold standard, and CT/LDCT diagnosis, including sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). | 3 Years |
| Measure | Description | Time Frame |
|---|---|---|
| The diagnostic and monitoring significance of routine tests integrating with ctDNA methylation analysis by NGS in differentiating benign and malignant pulmonary nodules | The diagnostic performance of the combination of routine tests and ctDNA methylation analysis by NGS in differentiating benign and malignant pulmonary nodules, including sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). |
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Inclusion Criteria:
18 Years and older
pulmonary nodules diagnosed by chest CT or low-dose computed tomography (LDCT) scans
new cases of pulmonary nodules or diagnosed within 60 days prior to enrollment
agree to finish the Patient Pulmonary History Questionnaire
agree to be followed up for 2-3 years
agree to provide a written informed consent
Exclusion Criteria:
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Subjects with pulmonary nodules diagnosed by chest CT or low-dose computed tomography (LDCT) scans
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| Name | Affiliation | Role |
|---|---|---|
| Nanshan ZHONG, MD | The First Affiliated Hospital of Guangzhou Medical University | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital | Beijing | China | ||||
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 41831027 | Derived | Zeng F, Wang B, Peng M, Tao J, Tu X, Lu H, Qiu X, Yang Y, Wang W, Zeng M, Fan JB, Zeng Q, Liu Q. Comparison of clinical-radiological and radiomics features for predicting pulmonary nodule malignancy in a multicenter study of mixed clinical and surveillance populations. Eur Radiol. 2026 Jul;36(7):6179-6192. doi: 10.1007/s00330-026-12437-3. Epub 2026 Mar 14. | |
| 33209621 |
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| OTHER |
| First Hospital of China Medical University | OTHER |
| Guizhou Provincial People's Hospital | OTHER |
| Shanghai Chest Hospital | OTHER |
| First Affiliated Hospital, Sun Yat-Sen University | OTHER |
| First Affiliated Hospital Xi'an Jiaotong University | OTHER |
| Qilu Hospital of Shandong University | OTHER |
| Inner Mongolia People's Hospital | OTHER |
| The First Affiliated Hospital with Nanjing Medical University | OTHER |
| The First Affiliated Hospital of Zhengzhou University | OTHER |
| Second Hospital of Jilin University | OTHER |
| LanZhou University | OTHER |
| Peking University Third Hospital | OTHER |
| The First People's Hospital of Yunnan | OTHER |
| Shantou Affiliated Hospital of Sun Yat-Sen University | UNKNOWN |
| Ruijin Hospital | OTHER |
| Tongji Hospital | OTHER |
| The First Affiliated Hospital of Guangzhou Medical University | OTHER |
| The First Affiliated Hospital of Air Force Medicial University | OTHER |
| Shenzhen People's Hospital | OTHER |
| Henan Provincial People's Hospital | OTHER |
| Beijing Chao Yang Hospital | OTHER |
| Xiamen Second Hospital | UNKNOWN |
| The First Affiliated Hospital of Nanchang University | OTHER |
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Whole blood
Formalin-fixed paraffin-embedded (FFPE) tissue
| 3 Years |
| Xiangya Hospital of Central South University |
| Changsha |
| China |
| Department of Respiratory Medicine, West China Hospital of Sichuan University | Chengdu | China |
| Department of Pulmonary Medicine, The First Affiliated Hospital of Sun Yat-Sen University | Guangzhou | China |
| The First Affiliated Hospital of Guangzhou Medical University | Guangzhou | China |
| Department of Respiration and Critical Care Medicine, Guizhou Provincial People's Hospital | Guiyang | China |
| Department of Pulmonary and Critical Care Medicine, Inner Mongolia Autonomous Region People's Hospital | Hohhot | China |
| Department of Respiratory, QILU Hospital, Shandong University | Jinan | China |
| Department of Respiratory Medicine, The First People's Hospital of Yunnan Province | Kunming | China |
| Department of Gerontal Respiratory Medicine, The Frist Hospital of Lanzhou University | Lanzhou | China |
| Department of Respiration, The First Affiliated Hospital of Nanchang University | Nanchang | China |
| Department of Pulmonary & Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine | Shanghai | China |
| Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University | Shanghai | China |
| Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University | Shanghai | China |
| Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine | Shanghai | China |
| Department of Respiratory Medicine, Shantou Central Hospital | Shantou | China |
| Department of Respiratory Medicine, The First Hospital of China Medical University | Shenyang | China |
| Department of Respiratory Medicine, Shenzhen People's Hospital | Shenzhen | China |
| Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology | Wuhan | China |
| Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital, Xi'an Jiaotong University | Xi'an | China |
| Department of Pulmonary Medicine, Xijing Hospital, Air Force Medical University of PLA | Xi'an | China |
| Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Xiamen Medical College | Xiamen | China |
| Department of Respiratory Medicine, Henan Provincial People's Hospital | Zhengzhou | China |
| Liang W, Liu D, Li M, Wang W, Qin Z, Zhang J, Zhang Y, Hu Y, Bao H, Xiang Y, Wang B, Wu J, Sun J, Hu C, Ye X, Zhang X, Xiao W, Yun C, Sun D, Wang W, Chang N, Zhang Y, Zhao J, Zhang X, Xu J, Wu D, Liu X, Guo Y, Zhang Q, Zhang W, Yang L, Li Z, Zhang X, Han B, Tong Z, He J, Qu J, Fan JB, Zhong N. Evaluating the diagnostic accuracy of a ctDNA methylation classifier for incidental lung nodules: protocol for a prospective, observational, and multicenter clinical trial of 10,560 cases. Transl Lung Cancer Res. 2020 Oct;9(5):2016-2026. doi: 10.21037/tlcr-20-701. |
| ID | Term |
|---|---|
| D055613 | Multiple Pulmonary Nodules |
| ID | Term |
|---|---|
| D008175 | Lung Neoplasms |
| D012142 | Respiratory Tract Neoplasms |
| D013899 | Thoracic Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
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