# SRS Timing With Immune Checkpoint Inhibition in Patients With Untreated Brain Metastases From Non-small Cell Lung Cancer

> **NCT04650490** · PHASE2 · WITHDRAWN · sponsor: **Duke University**

## Conditions studied

- Brain Metastases
- Non Small Cell Lung Cancer

## Interventions

- **RADIATION:** Stereotactic Radiosurgery
- **DRUG:** Immunotherapy

## Key facts

- **NCT ID:** NCT04650490
- **Lead sponsor:** Duke University
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2023-03
- **Primary completion:** 2026-03
- **Final completion:** 2026-03
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** failure to enroll
- **Last updated:** 2023-03-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04650490

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04650490, "SRS Timing With Immune Checkpoint Inhibition in Patients With Untreated Brain Metastases From Non-small Cell Lung Cancer". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT04650490. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*
