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CompletedNCT01592721Updated Sep 21, 2022Results posted

Radiation and Cetuximab Plus Intratumoral EGFR Antisense DNA in Locally Advanced Head and Neck Squamous Cell Carcinoma

A Phase 1/2 interventional study of EGFR Antisense DNA in Squamous Cell Carcinoma and Head and Neck Cancer, sponsored by The University of Texas Health Science Center at San Antonio. Completed at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-09-21.

Sponsored by The University of Texas Health Science Center at San Antonio · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The incorporation of novel targeted therapies to radiation therapy is of particular interest in head and neck cancer and may improve efficacy without significantly increasing toxicity. The investigators hypothesize that the addition of a second EGFR-targeted agent that inhibits EGFR at the intracellular level will improve the antitumor effect of standard radiation and cetuximab. The goal of this study is to evaluate the safety, efficacy, and the biologic effects in patients with locally advanced SCCHN of an antisense gene targeting the EGFR in combination with standard therapy with radiation and cetuximab.

Read the detailed description

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. The investigators 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, the investigators plan to evaluate the addition of intratumoral EGFR antisense DNA (EGFR AS) to standard radiation with concurrent cetuximab in patients.

Objectives

  • To evaluate the safety of the combination of intratumoral EGFS AS DNA with standard cetuximab and radiation.
  • To evaluate the locoregional progression-free survival in selected patients with locally advanced SCCHN treated with intratumoral EGFR AS DNA combined with standard radiation plus cetuximab.
  • To evaluate other efficacy parameters, including the objective response rate, distant control and overall progression-free survival, and overall survival.
  • To determine the effect of EGFR antisense therapy on EGFR-related biomarkers. The investigators will use reverse phase protein microarrays (RPPA) and immunohistochemical (IHC) analysis of tissue microarrays (TMA) on baseline and post-treatment tumor tissue to determine the expression level and modulation of a panel of EGFR and EGFR-pathway related biomarkers, including (but not necessarily limited to) EGFR, pEGFR, Src, pMAPK, STAT3, pSTAT3, pSTAT5, pSTAT1, pAKT, p38, p21, p27, PARP, E-cadherin, p-ErbB3, and Ki67.
  • To examine the transfection of the EGFR antisense gene therapy in vivo.

Subject population

The investigators will enroll patients with SCCHN who are suitable for intratumoral injections of EGFR antisense.

Treatment plan

EGFR AS will be administered by direct intratumoral injection using direct visualization, endoscopy, or imaging-guidance (ultrasound) as clinically determined (see protocol). Patients will receive a total of up to 4 weekly intratumoral injections of EGFR antisense (or less if there is no identifiable tumor) starting 2 weeks prior to radiation (study schema in protocol). Patients will receive standard radiation 70 Gy/200 cGy/daily, 5 days/week, 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.

02

Conditions studied

  • Squamous Cell Carcinoma
  • Head and Neck Cancer

Keywords

  • Carcinoma
  • Squamous cell carcinoma
  • Head and neck neoplasms
  • Cetuximab
03

In context

Carcinoma

6,741 studies on the registry are indexed under Carcinoma; 1,161 are open to participants now.

This study's enrollment of 6 is below the median of 45 across 5,170 interventional studies indexed under Carcinoma.

Browse Carcinoma studies →

Lead sponsor

The University of Texas Health Science Center at San Antonio is the lead sponsor of 435 studies on the registry; 88 are open to participants now.

Of its 62 completed or terminated interventional studies of FDA-regulated products, 31 (50%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • First stage Patients with AJCC 7th edition stage IVA-IVC or recurrent or metastatic head and neck cancer will be eligible. Patients with M1 disease must have asymptomatic or low volume distant metastasis and require palliation for local and regional disease.
  • Second stage (phase II part) Patients with AJCC 7th edition stage III-IVB (T1-T4, N1-3M0) head and neck cancer, except WHO type II and III nasopharyngeal cancer, including unknown primary tumors.
  • Histologically or cytologically confirmed diagnosis of squamous cell carcinoma or variants or poorly differentiated carcinoma.
  • Unidimensionally measurable disease (RECIST criteria).
  • ECOG performance status of 0-2
  • In the second stage of the study, therapy will be administered with a curative intent and patients should not have recurrent disease or distant metastasis.
  • Primary tumor and/or lymphadenopathy should be technically suitable for intratumoral injections. The Otolaryngologist specialist on the head and neck team will determine this feasibility.
  • Participating patients should agree to undergo a tumor biopsy at baseline as well as approximately 2 weeks later as specified in study schema.
  • Prior treatment
  • First stage: any prior treatment, except prior therapy, which specifically and directly targets the EGFR pathway, administered within the last 6 months. No prior radiation therapy to the head and neck.
  • Second stage: no prior chemotherapy, biologic/molecular targeted therapy (including any prior therapy which specifically and directly targets the EGFR pathway), or radiotherapy for head and neck cancer.
  • Prior surgical therapy will consist only of incisional or excisional biopsy, including tonsillectomy, and organ sparing procedures, including neck dissection. Any non-biopsy surgical procedure for head and neck cancer must have taken place at least one month before initiating protocol treatment, at the treating physician's discretion.
  • Patients must have organ and marrow function as defined below:

Absolute neutrophil count above/equal to 1,000/µL Platelets above/equal to 75,000/µL Hemoglobin above/ equal to 10 g/dL Total bilirubin \<2 x upper normal institutional limits Creatinine clearance > 20 mL/min

  • Age 18 years or older
  • Because radiation therapy is known to be teratogenic and EFGR inhibitors may have teratogenic potential, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control) prior to study entry and for the duration of study participation, and for 3 months after completing study treatment. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
  • Informed consent must be obtained from all patients prior to beginning therapy. Patients should have the ability to understand and the willingness to sign a written informed consent document.

Exclusion criteria

Exclusion Criteria:

  • Severe renal insufficiency (creatinine clearance \< 20 mL/min)
  • Treatment with anticoagulants, except when used to maintain the patency of a central venous line, or INR >1.5, or PTT ratio >1.5.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection or psychiatric illness/social situations that would limit compliance with study requirements. Significant history of uncontrolled cardiac disease; i.e., uncontrolled hypertension, unstable angina, uncontrolled congestive heart failure.
  • Patients may not be receiving any other investigational agents.
  • No history of prior malignancy, with the exception of curatively treated squamous cell or basal carcinoma of the skin or in situ cervical cancer, DCIS or LCIS of the breast, localized early stage prostate cancer, or malignancy that has been treated with a curative intent with a 3-year disease-free survival.
  • Pregnant women are excluded from this study because cetuximab, EGFR AS, and radiation have the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with cetuximab and EGFR AS, breastfeeding should be discontinued if the mother is treated with cetuximab. The effects of cetuximab and EGFR AS on the developing human fetus at the recommended therapeutic dose are unknown. For this reason women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while in this study, she should inform her treating physician immediately.
  • HIV-positive patients receiving combination anti-retroviral therapy are excluded from the study because of possible drug interactions with cetuximab. Appropriate studies will be undertaken in patients receiving combination anti-retroviral therapy when indicated. HIV status of the patient will be obtained from the patient's history via discussion with the investigator. HIV testing is not required.
  • Prior severe infusion reaction to a monoclonal antibody.
  • Patients who are not informed of and are not willing to comply with the investigational nature of the study and have not signed a written informed consent in accordance with institutional and good clinical practice guidelines.
  • Phase 2 ONLY (second stage) - Subjects M1 disease will be excluded.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (actual)

Study arms

  • Experimental
    EGFR Antisense DNA

    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 4 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, with concurrent cetuximab 250 mg/m2, after a loading dose of 400 mg/m2 2 weeks prior to starting radiation.

    Biological: EGFR Antisense DNA

Interventions

  • BiologicalEGFR Antisense DNA

    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 4 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, with concurrent cetuximab 250 mg/m2, after a loading dose of 400 mg/m2 2 weeks prior to starting radiation.

06

What researchers measure

Primary outcomes

  1. Toxicity Rate

    This is a 2-stage clinical trial. In the first stage, toxicity will be the primary endpoint. Toxicity measures will be graded according to NCI CTCAE version 4.0. All AEs reported are grade 1 to grade 3 AEs.

    Time frame: 1 year

  2. Locoregional Progression-free Survival

    In the second stage (phase II component), the primary endpoint will be locoregional progression-free survival (PFS) at 1 year measured from patient initial date of treatment to date of documented progression or date of death (in absence of progression).

    Time frame: 1 year

Secondary outcomes

  1. Tumor Response

    Clinical secondary endpoints include objective response rates, estimated by the proportion of patients with a best response of complete response (CR), partial response (PR), or stable disease (SD) by RECIST criteria, with corresponding exact 90% confidence limits.

    Time frame: 5 years

  2. Progression-free Survival

    Progression-free survival (PFS) will be measured from initial date of treatment to date of documented progression or date of death (in absence of progression) and estimated by the Kaplan-Meier method with 90% confidence limits.

    Time frame: 8 years and 10 months

  3. Overall Survival

    Overall survival (OS) will be measured from initial date of treatment to recorded date of death and will be estimated by the Kaplan-Meier method with 90% confidence limits.

    Time frame: 5 years

07

Results

Posted Sep 21, 2022

Participant flow

Participants enrolled at two sites, University of Pittsburgh and University of Texas Health Science Center, San Antonio. Participants were followed to completion of treatment and then long-term follow up.

Treatment Period
Participant flow — Treatment Period
MilestoneEGFR Antisense DNA
Started6
Completed6
Not completed0
Long-term Follow-up
Participant flow — Long-term Follow-up
MilestoneEGFR Antisense DNA
Started6
Completed5
Not completed1
Withdrew: Death1

Outcome measures

PrimaryToxicity Rate

This is a 2-stage clinical trial. In the first stage, toxicity will be the primary endpoint. Toxicity measures will be graded according to NCI CTCAE version 4.0. All AEs reported are grade 1 to grade 3 AEs.

Time frame:
1 year
Reported as:
Number · Number of adverse events
Toxicity Rate
Number of adverse eventsEGFR Antisense DNA
Toxicity Rate20
PrimaryLocoregional Progression-free Survival

In the second stage (phase II component), the primary endpoint will be locoregional progression-free survival (PFS) at 1 year measured from patient initial date of treatment to date of documented progression or date of death (in absence of progression).

Time frame:
1 year
Reported as:
Count of participants · Participants
Locoregional Progression-free Survival
ParticipantsEGFR Antisense DNA
Locoregional Progression-free Survival6
SecondaryTumor Response

Clinical secondary endpoints include objective response rates, estimated by the proportion of patients with a best response of complete response (CR), partial response (PR), or stable disease (SD) by RECIST criteria, with corresponding exact 90% confidence limits.

Time frame:
5 years

No measurements were reported for this outcome.

SecondaryProgression-free Survival

Progression-free survival (PFS) will be measured from initial date of treatment to date of documented progression or date of death (in absence of progression) and estimated by the Kaplan-Meier method with 90% confidence limits.

Time frame:
8 years and 10 months

No measurements were reported for this outcome.

SecondaryOverall Survival

Overall survival (OS) will be measured from initial date of treatment to recorded date of death and will be estimated by the Kaplan-Meier method with 90% confidence limits.

Time frame:
5 years
Reported as:
Count of participants · Participants
Overall Survival
ParticipantsEGFR Antisense DNA
Overall Survival5

Adverse events

Collected over Serious Adverse Events and Other (Not Including Serious) Adverse Events were monitored up to 5 years. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
EGFR Antisense DNA1/6 (16.7%)0/6 (0%)6/6 (100%)
Most frequent other events
Showing 10 of 20
Most frequent other events
EventEGFR Antisense DNA
OdynphagiaGastrointestinal disorders3/3
DysguesiaGastrointestinal disorders3/6
HyperglycemiaEndocrine disorders2/6
DiarrheaGastrointestinal disorders2/6
HeadacheNervous system disorders1/6
Neck burnsSkin and subcutaneous tissue disorders1/6
ParotiditisGeneral disorders1/6
Submadibular duct infectionInfections and infestations1/6
Hot Flashes/sweatsGeneral disorders1/6
DizzinessNervous system disorders1/6

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)EGFR Antisense DNA
<=18 years0
Between 18 and 65 years4
>=65 years2
Age, Continuous
Age, Continuous(Years)EGFR Antisense DNA
Mean66.5 (50 to 87)
Sex: Female, Male
Sex: Female, Male(Participants)EGFR Antisense DNA
Female2
Male4
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)EGFR Antisense DNA
Black or African American1
White5
Hispanic or Latino4
Unknown or Not Reported2
Region of Enrollment
Region of Enrollment(participants)EGFR Antisense DNA
United States6
08

Study locations

2 sites
  • University of Pittsburgh
    Pittsburgh, Pennsylvania 15213, United States
  • Cancer Therapy and Research Center at UTHSCSA
    San Antonio, Texas 78229, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 2, 2016

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 21, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01592721
Lead sponsor
The University of Texas Health Science Center at San Antonio
Collaborators
University of Pittsburgh
Responsible party
Sponsor
First posted
May 7, 2012
Start date
Apr 2013
Primary completion
Feb 1, 2022
Completion
Feb 1, 2022
Results posted
Sep 21, 2022
Last update
Sep 21, 2022

Study contacts

Anand Karnad, MD
principal investigator · University of Texas Health Science Center San Antonio

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.

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