A Phase 2 Clinical Trial of the Safety and Effects of IRX-2 in Treating Patients With Operable Head and Neck Cancer
- Conditions
- Squamous Cell Carcinoma of the Head and Neck
- Interventions
- Registration Number
- NCT00210470
- Lead Sponsor
- Brooklyn ImmunoTherapeutics, LLC
- Brief Summary
This was a Phase 2a trial to investigate the safety and biological activity of the RIX-2 Regimen in patients with untreated, resectable squamous cell cancer of the head and neck (HNSCC).
- Detailed Description
IRX-2 is a primary cell-derived biologic that reduces the immune suppression that is often seen in the cancer tumor micro-environment, restores immune function and activates a coordinated immune response against the tumor. IRX-2 is a complex proprietary therapeutic containing numerous active cytokine components, which restores and activates multiple immune cell types including T cells, dendritic cells, and natural killer cells to recognize and destroy tumors.
The present study administered the IRX-2 Regimen to 27 patients as a neoadjuvant (before surgery) therapy, and the main objective of the study was to determine the safety and tolerability of the IRX-2 regimen.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 27
- Pathologically confirmed (histology) Squamous Cell Carcinoma of the oral cavity, oropharynx, hypopharynx, or larynx.
- No prior surgery, radiation therapy or chemotherapy of this tumor other than biopsy or emergency procedure required for supportive care.
- Clinically staged Stage II, III, or IVA cancer, assessed to be surgically resectable with curative intent.
- Life Expectancy of greater than 6 months
- Stage IVB Squamous Cell Carcinoma
- Use of any investigational agent within the previous 30 days
- Uncontrolled cardiovascular disease
- Myocardial infarction within the last 3 months
- Abnormal hemoglobin, neutrophil, lymphocyte or platelet counts
- Positive for hepatitis B or C or HIV
- Evidence of distant metastases
- Clinical gastritis or peptic ulcer within the last 6 months
- Stroke within the last six months
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description IRX-2 Regimen Cyclophosphamide The IRX-2 regimen is the combination of a 2-week course of IRX-2 itself, an initial dose of cyclophosphamide, and a 3-week course of indomethacin, zinc supplementation, and omeprazole. IRX-2 Regimen Omeprazole The IRX-2 regimen is the combination of a 2-week course of IRX-2 itself, an initial dose of cyclophosphamide, and a 3-week course of indomethacin, zinc supplementation, and omeprazole. IRX-2 Regimen IRX-2 The IRX-2 regimen is the combination of a 2-week course of IRX-2 itself, an initial dose of cyclophosphamide, and a 3-week course of indomethacin, zinc supplementation, and omeprazole. IRX-2 Regimen Indomethacin The IRX-2 regimen is the combination of a 2-week course of IRX-2 itself, an initial dose of cyclophosphamide, and a 3-week course of indomethacin, zinc supplementation, and omeprazole. IRX-2 Regimen Zinc The IRX-2 regimen is the combination of a 2-week course of IRX-2 itself, an initial dose of cyclophosphamide, and a 3-week course of indomethacin, zinc supplementation, and omeprazole.
- Primary Outcome Measures
Name Time Method Number of Participants With Adverse Events and Serious Adverse Events Enrollment through 30 days post-surgery The frequency of all Adverse Events (greater than 5%) is reported. All Serious Adverse Events were described.
- Secondary Outcome Measures
Name Time Method Overall Survival Time from surgery to death or confirmed recurrent or progressive disease, assessed up to 3 years Estimate overall survival (OS) in patients receiving the IRX-2 regimen. IRX-2 is currently being studied in an on-going Phase 2b clinical trial in patients with newly diagnosed Stage II, III, and IVA squamous cell carcinoma of the oral cavity (INSPIRE)
Patient Tolerance of Surgery and Post-operative Adjuvant Therapy; Following surgery and post-operative therapy (up to 39 days post surgery) Patient Tolerance of Surgery and Post-operative Adjuvant Therapy as measured by median days spent in the hospital, intensive care unit, and step down unit.
Immune Competence as Measured by Skin Test Reactivity At approx. 21 days, prior to surgery To assess measures of immune competence following administration of the IRX-2 regimen, including skin test reactivity.
Relationship Between Overall Survival (OS) and Immune Competence (Lymphocyte Infiltration, LI) in Participants With High LI and Low LI At time of surgery, after treatment with IRX-2 Regimen, assessed up to 5 years After participants completed the IRX-2 regimen and the tumor resection was performed, tumor pathology was evaluated from tissue specimens obtained at tumor resection. Formalin-fixed, paraffin-embedded blocks, or unstained slides from the primary tumor were submitted to an independent pathology laboratory for hematoxylin and eosin staining, and evaluation of lymphocyte infiltration (LI). Participants were grouped into a "low LI" and "high LI" group based on the change in lymphocyte infiltration from the pretreatment tumor biopsy to the post-treatment tumor surgical resection. 5-year overall survival probabilities were then estimated (Kaplan-Meier) between the "low LI" and "high LI" groups
Clinical and Histological Tumor Responses On approximately Day 21 (last day of treatment) prior to undergoing post-treatment surgery Number of participants with the specified percent change in size of target lesion is presented
Disease-free Survival Time from surgery to death or clinically apparent, biopsy confirmed recurrent or progressive disease after the completion of initial therapy, assessed up to 3 years; margins of resection positive for tumor will not be considered disease recurrence Estimate disease-free survival (DFS) (time from surgery to death or clinically apparent, biopsy confirmed recurrent or progressive disease after the completion of initial therapy, assessed up to 3 years; margins of resection positive for tumor will not be considered disease recurrence).
Number of Participants With High Lymphocyte Infiltration (LI) According to the Visual Analog Scale (VAS) On approximately Day 21 (last day of treatment) prior to undergoing post-treatment surgery Immunologic response features were extracted and quantified using a VAS of 0-100 mm to provide for a more continuous variable than the 0-4+ scale that is often used to assess histological responses. The scoring was such that 100 represented the maximum for any sample and 0 represented the lack of any parameter of interest.
See publication of Berinstein, et al., 2012 for complete details.