---
title: Early Adjuvant Diagnosis of Pulmonary Nodules Based on CTC.
nct_id: NCT06187935
overall_status: COMPLETED
sponsor: China-Japan Friendship Hospital
study_type: OBSERVATIONAL
primary_condition: Pulmonary Nodules, Solitary
countries: China
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT06187935.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT06187935"
ct_last_update_post_date: 2025-02-27
last_seen_at: "2026-05-12T06:00:44.285Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Early Adjuvant Diagnosis of Pulmonary Nodules Based on CTC.

**Official Title:** Early Adjuvant Diagnosis Clinical Trial of Pulmonary Nodules Based on Circulating Tumor Cells.

**NCT ID:** [NCT06187935](https://clinicaltrials.gov/study/NCT06187935)

## Key Facts

- **Status:** COMPLETED
- **Study Type:** OBSERVATIONAL
- **Target Enrollment:** 172
- **Lead Sponsor:** China-Japan Friendship Hospital
- **Conditions:** Pulmonary Nodules, Solitary, Pulmonary Nodules, Multiple
- **Start Date:** 2019-01-01
- **Completion Date:** 2024-03-31
- **CT.gov Last Update:** 2025-02-27

## Brief Summary

The goal of this observational clinical trial is to evaluate the value of circulating tumor cell detection in the early diagnosis of malignant pulmonary nodule. The main questions it aims to answer is: the sensitivity and specificity of peripheral blood circulating tumor cell detection in differentiating benign and malignant pulmonary nodules (≤3cm). Participants will be asked provide 4mL of peripheral blood for the test.

## Detailed Description

The aim of this clinical trial is to evaluate the value of circulating tumor cell detection in the early diagnosis of malignant pulmonary nodule. Patients with clinical suspected malignant pulmonary nodules will be included in this trial. Peripheral blood of participants will be collected before surgery or biopsy. Clinical and imaging data of enrolled patients will also be collected. Pathological diagnosis is the gold standard for differentiating benign and malignant pulmonary nodules. The sensitivity and specificity of CTC detection for diagnosing malignant pulmonary nodules will be analyzed.

## Eligibility

- **Minimum age:** 18 Years
- **Sex:** ALL
- **Healthy Volunteers:** No

```
Inclusion Criteria:

1\. Patients with single or multiple pulmonary nodules on CT imaging; 2. Subjects ≥18 years old, regardless of gender, occupation, and region, should have independent capacity for civil conduct and sign the informed consent for clinical study; 3. Subjects are generally in good condition, with ECOG score 0-1 and life expectancy of no less than 2 months; 4. Organ function level requirements:

1. Peripheral blood: 1.5 x 10\^9/L≤ absolute neutrophil count (ANC) ≤15 x 10\^9/L, platelets ≥100 x 10\^9/L, hemoglobin ≥9.0 g/dL; Prothrombin time (PT) ≥11 seconds, International normalized ratio (INR) ≥0.8;
2. Bilirubin ≤1.5 times the upper limit of normal, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤2.5 times the upper limit of normal;
3. Serum creatinine ≤1.5 times the upper limit of normal value.

Exclusion Criteria:

1\. The subjects had a history of malignant tumors, or serious cardiovascular and cerebrovascular diseases (had undergone heart stent surgery within 6 months or had been admitted to ICU, CCU or other intensive care units due to cardiovascular and cerebrovascular diseases, or EF≤50%); b. Severe vasculopathy, pulmonary tuberculosis or large-scale acute inflammation (including but not limited to acute bronchitis, vasculitis, etc.) or active chronic infection (HIV, HBV, HCV, etc.) within 3 months; 3. Poor compliance, unable to cooperate with the research program; 4. Participants in any drug trial within three months prior to enrollment; 5. Pregnant or breastfeeding; 6. Puncture/Surgical contraindications.
```

## Arms

- **pulmonary nodule group** — Patients with pulmonary nodules no more than 3cm on CT imaging.

## Primary Outcomes

- **sensitivity** _(time frame: until the samples are collected and tested as planned, up to 72 months)_ — the ability of peripheral blood CTC count detection to identify malignant pulmonary nodules when the real condition is malignancy
- **specificity** _(time frame: until the samples are collected and tested as planned, up to 72 months)_ — the ability of peripheral blood CTC count detection to exclude malignant pulmonary nodules when the real condition is benign disease

## Locations (1)

- China-Japan Friendship Hospital, Beijing, Beijing Municipality, China

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.china-japan friendship hospital|beijing|beijing municipality|china` — added _(2026-05-12)_

---

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*Source data (authoritative): https://clinicaltrials.gov/study/NCT06187935*  
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