Study to Test the Safety and How Radium-223 Dichloride an Alpha Particle-emitting Radioactive Agent Works in Combination With Pembrolizumab an Immune Checkpoint Inhibitor in Patients With Stage IV Non-small Cell Lung Cancer With Bone Metastases

Summary

The purpose of the study was to determine the safety and test the efficacy of the combination of radium-223 dichloride and pembrolizumab in patients with stage IV non-small cell lung cancer (NSCLC) with bone metastases who either had not received any systemic therapy for their advanced disease or had progressed on prior immunologic checkpoint blockade with antibodies against the programmed cell death protein-(ligand) 1 (PD-1/PD-L1). In this study researchers wanted to measure tumor shrinkage in response to treatment and how long that shrinkage lasted and gathered information on safety. Pembrolizumab is an immunologic checkpoint blocker that promotes an immune response against the tumor. Radium-223 dichloride is an alpha particle-emitting radioactive agent which kills cancer cells.

Timeline

Start

2020-03-06

Primary completion

2021-04-14

Completion

2023-01-30

Outcome

Outcome not reported

Stopped (Enrollment): “LPLV reached on 30Jan2023. Study was closed early for feasibility reasons related to enrollment of first line IO naïve patients. Safety data is consistent with the known safety profile of both drugs and no new safety issues have been observed”

Drugs

Indications