The Epidermal Growth Factor Receptor (EGFR) is highly expressed in SCCHN and its overexpression is associated with poor patient outcome. EGFR is a promising target of anticancer therapy. We have developed EGFR antisense DNA as a safe and potentially efficacious treatment for SCCHN as shown in a previous phase I study conducted at the University of Pittsburgh. Cetuximab (Erbitux or C225) is a chimerized EGFR monoclonal antibody that has produced positive results in a phase III trial in SCCHN when added to radiation therapy and was approved by the FDA for the treatment of locally advanced SCCHN. Radiation plus cetuximab is considered a standard treatment, especially for patients who are not good candidates for chemotherapy. In the current study, we plan to evaluate the addition of intratumoral EGFR antisense DNA (EGFR AS) to standard radiation with concurrent cetuximab in patients.
Subject population We will enroll patients with SCCHN who are suitable for intratumoral injections of EGFR antisense. Please see eligibility criteria. Treatment plan EGFR AS will be administered by direct intratumoral injection using direct visualization, endoscopy, or imaging-guidance (ultrasound) as clinically determined . Patients will receive a total of up to 7 weekly intratumoral injections of EGFR antisense (or less if there is no identifiable tumor) starting 2 weeks prior to radiation. Patients will receive standard radiation 70 Gy/200 cGy/daily, 5 days/week,excluding weekends and holidays, with concurrent cetuximab 250 mg/m2, after a loading dose of 400 mg/m2 2 weeks prior to starting radiation. Statistical Design and Sample Size The study will be conducted in two-stages. In the first stage, 11 patients with stage IVA-C or recurrent disease will be evaluated for safety. If the regimen is deemed safe, a total of 31 patients with stage III or IVA-B, previously untreated SCCHN will be enrolled in the second stage of the study.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
7
* Intratumoral EGFR AS injections weekly x 7 weeks (or less if there is no identifiable tumor), starting 2 weeks prior to radiation. The first EGFR AS injection must be given after cetuximab is administered. Subsequent EGFR AS injections can be given before or after cetuximab is administered. Injections will be in the primary and/or lymph nodes. One site will be injected per weekly session. If it is necessary the antisense injection can be scheduled within 1 business day of the original schedule date and then resume the original schedule * EGFR AS will be administered by direct intratumoral injection using direct visualization, endoscopy, or imaging-guidance (ultrasound) as clinically determined. The same lesion (primary tumor or lymph node) will be injected during treatment.
Hillman Cancer Center
Pittsburgh, Pennsylvania, United States
Disease progression
Change in tumor size based on CT or MRI scans of the same tumor(s) of the head and/or neck as compared to baseline measurement.
Time frame: baseline, 4, 7, 10, and 13 months after study treatment.
Number of adverse events associated with study treatment
Time frame: 2 weeks
Response rate
Change in tumor size based on CT or MRI scans of the same tumor(s) of the head and/or neck as compared to baseline measurement.
Time frame: baseline, 4, 7, 10, and 13 months after study treatment.
Determine the effect of EGFR antisense therapy on EGFR and EGFR-related biomarkers.
Time frame: 3 years
Examine the transfection of the EGFR antisense gene therapy in vivo.
Time frame: 3 Years
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