S0415 Cetuximab in Treating Patients With Metastatic Esophageal Cancer or Gastroesophageal Junction Cancer

Time to Treatment Failure

Time to treatment failure is measured from date of registration to date of first observation of progressive disease, death due to any cause, symptomatic deterioration, or early discontinuation of treatment. Progressive disease is defined as one or more of the following: 20% increase in the sum of longest diameters of target measurable lesions over smallest sum observed (over baseline if no decrease during therapy) using the same techniques as baseline. Unequivocal progression of non-measurable disease in the opinion of the treating physician (an explanation must be provided). Appearance of any new lesion/site. Death due to disease without prior documentation of progression and without symptomatic deterioration. Symptomatic deterioration is defined as global deterioration of health status requiring discontinuation of treatment without objective evidence of progression.

Time frame: every 3 weeks while on treatment

Time to Progression

Progression free survival is measured from date of registration to date of first documentation of progression or symptomatic deterioration, or death due to any cause. Patients last known to be alive and progression free are censored at date of last contact. Progressive disease is defined as one or more of the following: 20% increase in the sum of longest diameters of target measurable lesions over smallest sum observed (over baseline if no decrease during therapy) using the same techniques as baseline. Unequivocal progression of non-measurable disease in the opinion of the treating physician (an explanation must be provided). Appearance of any new lesion/site. Death due to disease without prior documentation of progression and without symptomatic deterioration. Symptomatic deterioration is defined as global deterioration of health status requiring discontinuation of treatment without objective evidence of progression.

Time frame: every 3 weeks while on treatment, then every 3 months for 3 years