The primary purpose of the study is to determine if patients with brain metastases from non-small cell lung cancer treated with Motexafin Gadolinium and whole brain radiation therapy retain their neurologic function and ability to think for a longer time compared to patients treated with whole brain radiation therapy alone.

• Brain Neoplasms
• Carcinoma, Non-Small-Cell Lung
• Metastases, Neoplasm

• Mehta MP, Shapiro WR, Glantz MJ, Patchell RA, Weitzner MA, Meyers CA, Schultz CJ, Roa WH, Leibenhaut M, Ford J, Curran W, Phan S, Smith JA, Miller RA, Renschler MF. Lead-in phase to randomized trial of motexafin gadolinium and whole-brain radiation for patients with brain metastases: centralized assessment of magnetic resonance imaging, neurocognitive, and neurologic end points. J Clin Oncol. 2002 Aug 15;20(16):3445-53.
• Carde P, Timmerman R, Mehta MP, Koprowski CD, Ford J, Tishler RB, Miles D, Miller RA, Renschler MF. Multicenter phase Ib/II trial of the radiation enhancer motexafin gadolinium in patients with brain metastases. J Clin Oncol. 2001 Apr 1;19(7):2074-83.
• Rosenthal DI, Nurenberg P, Becerra CR, Frenkel EP, Carbone DP, Lum BL, Miller R, Engel J, Young S, Miles D, Renschler MF. A phase I single-dose trial of gadolinium texaphyrin (Gd-Tex), a tumor selective radiation sensitizer detectable by magnetic resonance imaging. Clin Cancer Res. 1999 Apr;5(4):739-45.
• Magda D, Lepp C, Gerasimchuk N, Lee I, Sessler JL, Lin A, Biaglow JE, Miller RA. Redox cycling by motexafin gadolinium enhances cellular response to ionizing radiation by forming reactive oxygen species. Int J Radiat Oncol Biol Phys. 2001 Nov 15;51(4):1025-36.
• Miller RA, Woodburn K, Fan Q, Renschler MF, Sessler JL, Koutcher JA. In vivo animal studies with gadolinium (III) texaphyrin as a radiation enhancer. Int J Radiat Oncol Biol Phys. 1999 Nov 1;45(4):981-9.

Inclusion Criteria:

• Adults (≥18 years old) with radiologically proven parenchymal brain metastases from histologically confirmed non-small cell lung cancer;
• KPS score of ≥70;
• Each patient must sign a study-specific Informed Consent form

Exclusion Criteria:

• Liver metastases;
• Extracranial metastases in two or more organs;
• Known leptomeningeal metastases or subarachnoid spread of tumor;
• Prior whole brain radiation;
• Plan to use radiosurgery or radiation boost after completion of WBRT;
• Planned chemotherapy during study treatment (prior and subsequent chemotherapy is allowed);
• Prior total resection of a single brain metastasis;
• Laboratory values as follows:

LDH > 1.3 x upper limit of normal (ULN); ANC < 1500 /mm³; Platelets < 50,000 /mm³; Creatinine > 2.0 mg/dL; AST or ALT > 2 x ULN; Total bilirubin > 2 x ULN;

• Women who are pregnant or lactating