Inclusion Criteria:

Histologically confirmed non-small cell lung cancer.

Clinical or pathologic stage IIIA (T1-3N2M0, T3N1M0) and IIIB (Any T N3M0, T4 Any N M0) diseases according to the American Joint Committee of Cancer criteria (Appendix I). Patients with malignant pleural effusion will be excluded.

The primary tumor must be radiographically measurable with bi-dimensionally measurable disease

Age > 18.

Karnofsky performance status > 70 (Appendix II).

FEV1 sufficient for patients to tolerate radiation therapy, which is at the discretion of the radiation oncologist, usually > 800 ml, but may be higher or lower depending on the volume of radiotherapy portal, which is a variable of the tumor extent.

WBC > 3000; platelet count > 100,000; absolute neutrophil counts > 1,000; hemoglobin ≥ 8.0 g/dl; serum creatinine < 1.5 mg/dl or creatinine clearance >60 ml/min. Laboratory values must be obtained < 3 weeks prior to registration.

Patients with equivocal enlargement of adrenal gland(s) on CT scan, or a few equivocal regional or distant lesions on any imaging studies need further imaging study or biopsy to rule out distant metastasis.

Transaminases (SGOT and/or SGPT) may be up to 2.5 x institutional upper limit of normal (ULN) if alkaline phosphatase is < ULN, or alkaline phosphatase may be up to 4 x ULN if transaminases are < ULN. However, patients who have both transaminase elevation > 1.5 x ULN and alkaline phosphatase > 2.5 x ULN are not eligible for this study (due to decreased clearance of docetaxel and increased risk of toxicity).

Pre-existing neuropathy must be grade I or less.

A signed informed consent.

Women of childbearing potential must have a negative pregnancy test.

Men and women of childbearing potential must be willing to consent to using effective contraception while on treatment and for a reasonable period thereafter.

Exclusion Criteria:

Patients with distant metastasis (stage IV disease).

Patients without measurable disease.

Patients with medical contraindication to chemotherapy or radiotherapy.

Patients with myocardial infarction within the preceding six months or symptomatic heart disease, including angina, congestive heart failure, uncontrolled arrhythmia.

Patients with bilirubin elevated above institutional upper limit of normal (ULN) must be excluded.

Women who are pregnant or breast feeding are not eligible.

Patients with a history of severe hypersensitivity reaction to Taxotere® or other drugs formulated with polysorbate 80 must be excluded.