{"denoms":[{"counts":[{"groupId":"OG000","value":"0"}],"units":"Participants"}],"description":"Determine the effect of treatment and dose of treatment on biologic correlates in tumor tissue and/or surrounding mucosa.","groups":[{"description":"Patients receive erlotinib hydrochloride orally or via gastrostomy tube once daily in weeks 1-9 and then for 2 years following completion of radiation therapy. Beginning on day 1 of week 2, patients undergo radiation therapy once daily, 5 times a week, for 5-7 weeks. Treatment continues in the absence of disease progression or unacceptable toxicity.","id":"OG000","title":"Arm I"}],"populationDescription":"Both participants did not complete treatment per protocol and were not evaluable. No data collected.","reportingStatus":"POSTED","timeFrame":"2 yrs post concurrent chemo-radiation therapy","title":"Lab Correlates","type":"OTHER_PRE_SPECIFIED"}