Clinical trial Recruiting at 5 sites Observational Ages 18 to 75

Evaluating SBRT for treating lung nodules after surgery

Official title: To Evaluate the Effectiveness and Safety of Stereotactic Radiotherapy (SBRT) in the Treatment of Patients With Residual Malignant Pulmonary Nodules After Lung Cancer Surgery: A Multi-center, Prospective Clinical Trial (SMILE)

Run by Second Xiangya Hospital of Central South University · NCT05113017 · Data updated 2026-11-12

This study is testing if Stereotactic Body Radiation Therapy (SBRT) can safely help people with leftover lung nodules after surgery when more surgery isn't possible.

Quick facts

Study typeObservational
Ages18 Years to 75 Years
SexAll
Enrollment40 (estimated)
SponsorSecond Xiangya Hospital of Central South University
Academic / other
Locations5 sites (Changsha, Hunan and 4 other locations)
StatusRecruiting
StartedJuly 1, 2021
Main results expectedDecember 31, 2026
Study endsDecember 31, 2026
Registry record updatedNovember 28, 2025
Trial IDNCT05113017 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18-75 with at least two lung nodules, one of which is pathologically diagnosed as lung cancer, and who cannot undergo surgery.

Probably not a fit

Patients with metastatic pulmonary nodules or those who have previously received chest radiotherapy will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to assess the effectiveness and safety of Stereotactic Body Radiation Therapy (SBRT) in patients with multiple primary malignant pulmonary nodules following surgery. It focuses on individuals who have residual lung nodules that are either inoperable or for whom surgery is not an option. The study will involve a prospective evaluation of these patients to provide insights into new treatment alternatives for this challenging condition.

Why it matters

Potential benefit: If successful, this approach could offer a non-surgical treatment option for patients with multiple lung nodules, potentially improving their outcomes and quality of life.

How similar studies have gone: While this approach is being evaluated, similar studies using SBRT for lung cancer treatment have shown promising results, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

(1) Age 18-75 years old; (2) ECOG score 0-2 points; (3) Chest CT showed at least two lung nodules (pure ground glass, partial solid or solid nodules); (4) At least one lesion has been pathologically diagnosed as lung cancer (T1N0M0-T1N1M0); (5) At least one residual pulmonary nodule has been diagnosed pathologically or multidisciplinary diagnosis and treatment (MDT) discussed and considered as a primary malignant pulmonary nodule; (6) The residual lung nodules are inoperable or operable but the patient refuses to be surgically removed; (7) Have self-consciousness and can sign informed consent; (8) Must be able to swallow tablets.

Exclusion Criteria:

(1) There are metastatic pulmonary nodules; (2) Have received chest radiotherapy in the past; (3) Lymph node metastasis or distant metastasis; (4) The tumor is located in the proximal bronchial tree area. The proximal bronchial tree is defined as carina, left and right main bronchus, left and right upper lobe bronchus, middle bronchus, right middle lobe bronchus, lingual bronchus, left and right lower lobe bronchi; the proximal bronchial tree area is defined as surrounding the proximal bronchial tree in all directions The area within 2cm above; (5) Pneumonectomy patients; (6) Severe primary diseases such as heart, liver, kidney, hematopoietic system, etc.; (7) Women during pregnancy and lactation; (8) Active period of the human immunodeficiency virus (HIV) infection; (9) Those with active systemic infection, pneumonia, tuberculosis, and pericarditis; (10) There is a history of psychotropic drug abuse or drug abuse;(11)Insulin dependent diabetes;(12) Thyroid disease

Where it's running

  • Oncology Department,Second Xiangya Hospital of Central South University
    Changsha, Hunan, China
    Recruiting
  • Hunan Cancer Hospital
    Changsha, China
    Recruiting
  • The Third Xiangya Hospital, Central South University
    Changsha, China
    Recruiting
  • Xiangya Hospital, Central South University
    Changsha, China
    Recruiting
  • Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
    Wuhan, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.