OBJECTIVES:

• Determine and compare the frequency and grade of toxicities with the use of gadolinium texaphyrin as a radiosensitizer at two dose levels during preoperative radiotherapy in patients with stage IIIA non-small cell lung cancer.
• Measure the tumor, involved lymph nodes, and normal lung concentrations of gadolinium and compare to the image pixel intensity obtained by the 1.5 Tesla MRI in this patient population given this regimen.

OUTLINE: This is a dose escalation study of gadolinium texaphyrin (Gd-Tex).

Patients receive paclitaxel IV over 3 hours followed by carboplatin IV over 1-2 hours every 3 weeks for 3 courses. Three weeks after completion of induction chemotherapy, patients receive Gd-Tex IV over 30 minutes twice weekly for 10 doses during preoperative radiotherapy. Radiotherapy is administered daily 5 days a week for 5 weeks. Approximately 3.5 weeks after completion of preoperative radiotherapy, patients undergo complete surgical resection. Three hours prior to surgery, patients receive an eleventh dose of Gd-Tex if they do not develop grade 3 or 4 toxicity with the tenth dose. Patients also receive a MRI without contrast prior to surgery. If the tumor is found to be unresectable, patients may receive additional radiation and/or chemotherapy.

Cohorts of 3-6 patients receive escalating doses of Gd-Tex until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose limiting toxicities.

Patients are followed at 1 month and then every 4 months for 5 years.

PROJECTED ACCRUAL: A total of 3-12 patients will be accrued for this study within 1 year.

DISEASE CHARACTERISTICS:

• Histologically confirmed non-small cell carcinoma of the lung

• Surgical staging with mediastinoscopy or anterior thoracotomy required

  • T1-T3, N2, M0
  • Must appear resectable

PATIENT CHARACTERISTICS:

Age:

• 18 and over

Performance status:

• Karnofsky 70-100%

Life expectancy:

• Not specified

Hematopoietic:

• WBC at least 3,000/mm^3
• Absolute neutrophil count at least 1,500/mm^3
• Platelet count at least 100,000/mm^3

Hepatic:

• Bilirubin normal
• AST no greater than 2.5 times upper limit of normal

Renal:

• Creatinine no greater than 2 mg/dL OR
• Creatinine clearance at least 60 mL/min

Cardiovascular:

• No symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia

Pulmonary:

• FEV greater than 0.8 L

Other:

• Not pregnant or nursing
• Negative pregnancy test
• Fertile patients must use effective contraception
• Weight loss no greater than 10% of total body weight within past 3 months
• No evidence of neuropathy
• No history of allergy to platinum compounds, paclitaxel, porphyrins, or antiemetics appropriate for administration in conjunction with protocol chemotherapy
• No concurrent uncontrolled illness (e.g., active infection)
• No medical contraindication to MRI (e.g., pacemaker or aneurysm clip)
• No G6PD deficiency
• No known history of porphyria

PRIOR CONCURRENT THERAPY:

Biologic therapy:

• Not specified

Chemotherapy:

• At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas) and recovered

Endocrine therapy:

• Not specified

Radiotherapy:

• No prior chest radiotherapy in area of tumor/nodes

Surgery:

• Not specified

Other:

• No other concurrent investigational agents