Using proton therapy to treat small cell lung cancer
Official title: RAD4649-19: Prospective Study of Intensity-Modulated Proton Therapy (IMPT) for Small Cell Lung Cancer
Run by Emory University · NCT04342429 · Data updated 2026-11-12
This study tests whether a new type of radiation therapy called proton therapy is safer and more effective for people with small cell lung cancer compared to standard treatments.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | Emory University Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Atlanta, Georgia) |
| Status | Recruiting |
| Started | March 19, 2020 |
| Main results expected | May 27, 2027 |
| Study ends | May 27, 2028 |
| Registry record updated | September 17, 2026 |
| Trial ID | NCT04342429 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18 or older with pathologically confirmed small cell lung cancer who are recommended for thoracic radiotherapy using IMPT.
✕Probably not a fit
Patients with prior radiation therapy that overlaps significantly with the planned treatment area or those who are pregnant may 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 evaluates the safety and effectiveness of intensity-modulated proton therapy (IMPT) for patients with small cell lung cancer (SCLC). It aims to identify the best imaging schedule and re-planning strategies for patients whose tumors change rapidly. Additionally, the study will compare the rates of cardiac toxicities, pneumonitis, and esophagitis in patients receiving IMPT versus those treated with traditional photon-based therapies.
Why it matters
Potential benefit: If successful, this approach could lead to safer and more effective treatment options for patients with small cell lung cancer.
How similar studies have gone: While there is ongoing research into proton therapy for various cancers, this specific approach for small cell lung cancer is relatively novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Pathologically confirmed small cell lung cancer, limited or extensive stage. * Patients who are offered thoracic radiotherapy with intensity-modulated proton therapy (IMPT) techniques delivering 30-66 Gy in 15-33 fractions at 2 Gy per fraction, at the recommendation of the treating radiation oncologist. * Age 18 or greater Exclusion Criteria: * Prior radiation therapy which would provide significant dose overlap with the planned target volume(s) * Pregnancy
Where it's running
-
Winship Cancer Institute
Atlanta, Georgia, United States Recruiting
Study contacts
- Principal investigator: Kristin Higgins, MD — Emory University-Winship Cancer Institute
- Study coordinator: Kristin Higgins, MD
- Email: kristin.higgins@emory.edu
- Phone: 404-778-0603
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.