NCT06008730 Proton Beam Radiation Therapy After Treatment for Resected N2 Non-Small Cell Lung Cancer

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 20 participants in total. It began in 2024-12-13 with a primary completion date of 2026-12-31.

Brief Summary

This clinical trial tests proton beam radiation therapy in patients with non-small cell lung cancer who have undergone surgical resection and have lymph nodes involving the middle of the chest. Proton therapy is a type of radiation treatment that kills cancer cells while avoiding surrounding healthy tissue. Proton beam therapy is sometimes used after cancer surgery to reduce the risk of cancer recurrence (coming back). Giving proton beam radiation therapy may work better than conventional radiation treatment after surgery in patients with non-small cell lung cancer.

Eligibility Criteria

Inclusion Criteria: * Age \>= 18 years * Patients must have undergone complete surgical resection after pre-operative systemic therapy. Complete resections are defined as BOTH lobectomy, sleeve lobectomy, bilobectomy, or pneumonectomy AND lymph node dissection with at least three mediastinal (N2) stations sampled * Pathology report from surgical resection indicating complete resection of primary tumor (R0 resection) AND tumor involvement of at least one mediastinal lymph node (pN2) AND no tumor involvement of highest dissected mediastinal lymph node. Patients who have initially positive margins that are secondarily cleared on additional margins will be eligible * Eastern Cooperative Oncology Group Performance (ECOG) performance status =\< 2 (Karnofsky \>= 60%) * Life expectancy \> 12 weeks as determined by the investigator * Hemoglobin \>= 9.0 g/dl (no transfusions allowed within 7 days of simulation to meet entry criteria) (within 28 days of cycle 1 day 1) * White blood cell \>= 2000/uL (after at least 7 days without growth factor support or transfusion) (within 28 days of cycle 1 day 1) * Platelets \>= 100,000/mcL (no transfusions allowed within 7 days of cycle 1 day 1 to meet entry criteria) (within 28 days of cycle 1 day 1) * Serum creatinine =\< 2 mg/dL (or glomerular filtration rate \>= 40 mL/min) (within 28 days of cycle 1 day 1) * Because radiotherapy is known to be teratogenic, female of child-bearing potential (FCBP) must have a negative serum or urine pregnancy test prior to starting therapy * FCBP and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 3 months after completion of radiotherapy. A female of childbearing potential (FCBP) is a sexually mature woman who: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months * Completion of all previous therapy (including surgery, chemotherapy, or investigational therapy) for the treatment of cancer \>= 2 weeks before the start of radiotherapy * Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better * Willingness and ability of the subject to comply with scheduled visits, drug administration plan, protocol-specified laboratory tests, other study procedures, and study restrictions * Evidence of a personally signed informed consent indicating that the subject is aware of the neoplastic nature of the disease and has been informed of the procedures to be followed, the experimental nature of the therapy, alternatives, potential risks and discomforts, potential benefits, and other pertinent aspects of study participation Exclusion Criteria: * Patients who have stage IV disease * Patients who have had systemic therapy less than 2 weeks prior to anticipated radiotherapy start * Patients who have received prior thoracic radiotherapy * Patients who have a prior history of NSCLC (other than index diagnosis) * Patients who have small cell lung cancer * Patients whose tumors exhibit targetable alterations in EGFR or ALK * Patients with incomplete surgical resection, including R1 (microscopic residual disease) or R2 resection (macroscopic residual disease), sampling of fewer than three mediastinal lymph node stations, unremoved positive lymph nodes, malignant pleural effusion, or malignant pericardial effusion * Patients who are receiving any other investigational agents or an investigational device within 21 days before administration of first dose of study drugs * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Significant cardiovascular disease (eg, myocardial infarction, arterial thromboembolism, cerebrovascular thromboembolism) within 3 months prior to start of study therapy; angina requiring therapy; symptomatic peripheral vascular disease; New York Heart Association Class 3 or 4 congestive heart failure; or uncontrolled grade \>= 3 hypertension (diastolic blood pressure \>= 100 mmHg or systolic blood pressure \>= 160 mmHg) despite antihypertensive therapy * The following vulnerable populations will not be offered participation in this study: * Adults with cognitive impairment or unable to consent * Individuals who are not yet adults (infants, children, teenagers) * Pregnant women * Prisoners

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