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  • Title: A phase 2 trial of surgery with perioperative INGN 201 (Ad5CMV-p53) gene therapy followed by chemoradiotherapy for advanced, resectable squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, and larynx: report of the Southwest Oncology Group.
    Author: Yoo GH, Moon J, Leblanc M, Lonardo F, Urba S, Kim H, Hanna E, Tsue T, Valentino J, Ensley J, Wolf G.
    Journal: Arch Otolaryngol Head Neck Surg; 2009 Sep; 135(9):869-74. PubMed ID: 19770418.
    Abstract:
    OBJECTIVE: To assess the feasibility of treating patients with high-risk stage III and IV squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, and larynx with perioperative adenovirus-p53 (INGN 201) gene therapy along with surgery and chemoradiotherapy. DESIGN AND SETTING: A phase 2 study in a multi-institutional setting within the Southwest Oncology Group. PATIENTS: Thirteen individuals who met the following entry criteria: newly diagnosed, previously untreated squamous cell carcinoma of the oral cavity, oropharynx, larynx, or hypopharynx; selected stage III or IV disease without distant metastases; and surgically resectable disease. INTERVENTIONS: Surgery, perioperative INGN 201 gene therapy, and postoperative chemoradiotherapy. MAIN OUTCOME MEASURES: Overall patient status, tumor status, adverse effects, accrual rate, and percentage of patients successfully receiving the required doses of INGN 201. RESULTS: All 13 patients received surgery and perioperative INGN 201 injections in the primary tumor bed and the ipsilateral neck. In addition, 3 patients received injections in the contralateral neck. Three patients did not receive chemoradiotherapy. One patient had a grade 2 fistula of the oral cavity. Of the 10 patients with evaluable data, 2 experienced grade 4 adverse events, 1 owing to hypokalemia, hyponatremia, vomiting, leukopenia, and neutropenia and 1 owing to increased aspartate aminotransferase and alanine aminotransferase levels. Seven other patients experienced grade 3 adverse events. The estimate of 1-year progression-free survival is 92%. CONCLUSIONS: This trial demonstrated the feasibility of handling and delivering a very complex gene vector safely in multiple cooperative group institutions without significant incident. Intraoperative INGN 201 gene therapy is technically feasible, but it has many logistical problems when performed in a multi-institutional setting. Regulatory requirements might have hindered accrual in this multi-institutional setting. Disease control seems to be promising; however, no definitive conclusion can be made with this small sample size. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT00017173.
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