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IRX-2 Regimen in Patients With Newly Diagnosed Stage II, III, or IVA Squamous Cell Carcinoma of the Oral Cavity

A Randomized Phase 2 Trial of Neoadjuvant and Adjuvant Therapy With the IRX 2 Regimen in Patients With Newly Diagnosed Stage II, III, or IVA Squamous Cell Carcinoma of the Oral Cavity

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02609386
Acronym
INSPIRE
Enrollment
105
Registered
2015-11-20
Start date
2016-01-11
Completion date
2022-02-28
Last updated
2024-01-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Squamous Cell Carcinoma of the Oral Cavity

Keywords

Head and Neck Neoplasms, Immunotherapy, Cancer, Oral Cavity

Brief summary

The purpose of this study is to determine whether a pre-operative regimen of the study drug, IRX-2, a human cell-derived biologic with multiple active cytokine components, plus a single dose of cyclophosphamide, followed by 21 days of indomethacin, zinc-containing multivitamins, and omeprazole is active in treatment of oral cavity cancer. The regimen is intended to stimulate an immune response against the cancer.

Detailed description

This study will assess the activity and safety of the IRX Regimen in participants with newly diagnosed, untreated, surgically resectable squamous cell cancer of the oral cavity. Participants will be randomly assigned to receive either Regimen 1: IRX-2 + cyclophosphamide + indomethacin + zinc + omeprazole, or Regimen 2: cyclophosphamide + indomethacin + zinc + omeprazole. The primary study hypothesis is that the Regimen 1 with IRX-2 prolongs event-free survival and overall survival when compared to Regimen 2 without IRX-2. Subjects will be randomized to either Regimen 1 or Regimen 2 on a 2:1 basis and treated prior to surgery.

Interventions

BIOLOGICALIRX-2

Method of Administration: Administered for 10 days as subcutaneous bilateral injections in the upper neck.

DRUGCyclophosphamide

Method of Administration: Cyclophosphamide is administered once by IV

DRUGIndomethacin

Method of Administration: Indomethacin is administered orally for 21 days.

DIETARY_SUPPLEMENTZinc-containing multivitamin

Method of Administration: Zinc-containing multivitamin is administered orally for 21 days.

DRUGOmeprazole

Method of Administration: Omeprazole is administered orally for 21 days

Sponsors

Brooklyn ImmunoTherapeutics, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Pathologically confirmed (histology or cytology) clinical Stage II, III, or IVA squamous cell cancer of the oral cavity (excluding lip). Subjects must be staged using AJCC Cancer Staging Manual Edition 7.0 (appendices 1 and 2). 2. Disease surgically resectable with curative intent 3. Hematological function: hemoglobin \>9 g/dL; lymphocyte count \>0.50 x 109/L; neutrophil count \>1.5 x 109/L; platelet count \>100 x 109/L 4. Hepatic function: serum albumin \>3.0 g/dL; aspartate aminotransferase (AST/SGOT) and alanine aminotransferase (ALT/SGPT) \<3x the upper limits of normal (ULN); alkaline phosphatase \<2x the ULN 5. Prothrombin time (PT) and partial thromboplastin time (PTT) \< 1.4x the ULN 6. Calculated creatinine clearance \> 50 mL/minute (Appendix 4) 7. At least 18 years of age 8. Willing and able to give informed consent and adhere to protocol therapy 9. Karnofsky performance status (KPS) \>=70% 10. Females of childbearing potential (not surgically sterile or less than 12 months post-menopausal) must be able and willing to use a highly effective form of pregnancy prevention from the time of screening, during the study and 30 days after last dose of study regimen. Males with a partner of childbearing potential must use condoms with spermicide from the date of screening to 30 days after their last dose of study regimen 11. Negative urine/serum pregnancy test, if applicable

Exclusion criteria

1. Prior surgery, radiation therapy, or chemotherapy other than biopsy or emergency procedure required for supportive care of this oral cavity cancer. 2. Any medical contraindications or previous therapy that would preclude treatment with either IRX 2 Regimen 1 or 2 or the surgery, reconstruction or adjuvant therapy required to treat the oral tumor appropriately * Live vaccines should ideally not be administered to any patients undergoing treatment with chemotherapy or immunotherapy, but if need be, they should be administered \>4 months prior to the initiation of treatment or \>4 months after the completion of all treatment * Inactivated vaccines should precede the initiation of any study regimen and/or standard adjuvant therapy by at least 2 weeks, but preferably 4 weeks or longer 3. Clinical status of either subject or tumor such that administration of 21 day neoadjuvant IRX-2 Regimen 1 or 2 before surgery would be medically inappropriate 4. Tumor of the oropharynx 5. Tumor involvement of the following sites or any of these signs or symptoms likely to be associated with T4b cancer: * involvement of pterygopalatine fossa, maxillary sinus, or facial skin;. * gross extension of tumor to the skull base; * pterygoid plate erosion; * sphenoid bone or foramen ovale involvement; * direct extension to involve prevertebral fascia; * extension to superior nasopharynx or Eustachian tube; * direct extension into the neck with involvement of the deep neck musculature (neck node fixation); * suspected invasion (encasement) of the common or internal carotid arteries. Encasement will be assessed radiographically and will be defined as tumor surrounding the carotid artery 270º or greater; * direct extension of neck disease to involve the external skin; * direct extension to mediastinal structures; * regional metastases to the supraclavicular neck (low level IVB or VB) 6. Any investigational agent within the previous 30 days. 7. Daily administration of systemic immunosuppressive therapy or corticosteroids (except in physiological doses for hormone deficiency) during the previous 30 days. 8. Chronic anticoagulation, not including aspirin, but including heparins, warfarin, oral anticoagulation or other platelet function inhibitors, that can not, in the documented opinion of the investigator, safely be interrupted from at least 2 days prior to the initiation of the study regimen until after surgical resection of the tumor. 9. Symptomatic cardiopulmonary disease (including congestive heart failure and hypertension), coronary artery disease, serious arrhythmia or chronic lung disease. Patients with these conditions who are stable with relatively minor symptoms and who are appropriate candidates for surgical treatment of their tumor need not be excluded 10. Myocardial infarction within the last 3 months 11. Distant metastases (M1 disease). 12. Known infection with hepatitis B, hepatitis C, or HIV. 13. Signs or symptoms of systemic bacterial infection (use of antibiotics to treat superficial infection or contamination of tumor shall not, by itself, be considered evidence of infection). 14. Clinically significant gastritis or peptic ulcer disease that would contraindicate the use of indomethacin. 15. Stroke or other symptoms of cerebral vascular insufficiency within the last 3 months. 16. Allergy to ciprofloxacin (or other quinolones), acetylsalicylic acid, or indomethacin. 17. Previous diagnosis of invasive cancer from which the individual is NOT disease-free AND that has required treatment within the past 5 years, except for superficial skin, cervical cancer in-situ, well-differentiated thyroid or early stage prostate or bladder cancer (i.e., treatment with curative intent and long term disease-free expectations). 18. Prior axillary dissection. 19. Breastfeeding women.

Design outcomes

Primary

MeasureTime frameDescription
Event-free Survival (EFS)- Number of Participants With an EventFrom randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)EFS is defined as the time from randomization until progression after surgery, or at surgery, if failure to resect gross disease, or at time of death from any cause after randomization.
EFS- Time to EventFrom randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)EFS is defined as the time from randomization until progression after surgery, or at surgery, if failure to resect gross disease, or at time of death from any cause after randomization. Assessment of progression/disease recurrence occurred by physical exam and annual imaging for the duration of the follow up portion of the study. Median EFS was estimated using the Kaplan-Meier method.

Secondary

MeasureTime frameDescription
Overall Survival (OS)- Number of Participants With an EventFrom randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)OS was defined as the time from randomization to death due to any cause.
OS- Time to EventFrom randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)OS was defined as the time from randomization to death due to any cause. Data for partipants who were alive at the end of the study were censored at the last known alive date. Median OS was estimated using the Kaplan-Meier method.

Countries

Brazil, Canada, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Regimen 1
IRX Regimen with IRX-2, cyclophosphamide, indomethacin, zinc-containing multivitamins, and omeprazole as neoadjuvant and adjuvant therapy. IRX-2: Method of Administration: Administered for 10 days as subcutaneous bilateral injections in the upper neck. Cyclophosphamide: Method of Administration: Cyclophosphamide is administered once by IV. Indomethacin: Method of Administration: Indomethacin is administered orally for 21 days. Zinc-containing multivitamins: Method of Administration: Zinc-containing multivitamins are administered orally for 21 days. Omeprazole: Method of Administration: Omeprazole is administered orally for 21 days
70
Regimen 2
Regimen 1 but without IRX-2. Cyclophosphamide: Method of Administration: Cyclophosphamide is administered once by IV. Indomethacin: Method of Administration: Indomethacin is administered orally for 21 days. Zinc-containing multivitamins: Method of Administration: Zinc-containing multivitamins are administered orally for 21 days. Omeprazole: Method of Administration: Omeprazole is administered orally for 21 days.
35
Total105

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath199
Overall StudyLost to Follow-up35
Overall StudyPhysician Decision02
Overall StudyWithdrawal by Subject61

Baseline characteristics

CharacteristicRegimen 1Regimen 2Total
Age, Continuous60.5 years61 years61 years
Ethnicity (NIH/OMB)
Hispanic or Latino
28 Participants12 Participants40 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
41 Participants22 Participants63 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants2 Participants
Primary Disease Stage
Primary disease Stage I/II
26 Participants11 Participants37 Participants
Primary Disease Stage
Primary disease Stage III/IV
44 Participants24 Participants68 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
3 Participants2 Participants5 Participants
Race (NIH/OMB)
Black or African American
2 Participants1 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
7 Participants7 Participants14 Participants
Race (NIH/OMB)
White
58 Participants25 Participants83 Participants
Region of Enrollment
Brazil
24 participants11 participants35 participants
Region of Enrollment
Canada
2 participants0 participants2 participants
Region of Enrollment
United Kingdom
1 participants0 participants1 participants
Region of Enrollment
United States
43 participants24 participants67 participants
Sex: Female, Male
Female
22 Participants10 Participants32 Participants
Sex: Female, Male
Male
48 Participants25 Participants73 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
19 / 7011 / 35
other
Total, other adverse events
65 / 6831 / 35
serious
Total, serious adverse events
29 / 6814 / 35

Outcome results

Primary

EFS- Time to Event

EFS is defined as the time from randomization until progression after surgery, or at surgery, if failure to resect gross disease, or at time of death from any cause after randomization. Assessment of progression/disease recurrence occurred by physical exam and annual imaging for the duration of the follow up portion of the study. Median EFS was estimated using the Kaplan-Meier method.

Time frame: From randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)

ArmMeasureValue (MEDIAN)
Regimen 1EFS- Time to Event48.3 Months
Regimen 2EFS- Time to EventNA Months
p-value: 0.617695% CI: [0.6, 2.1]Log Rank
Primary

Event-free Survival (EFS)- Number of Participants With an Event

EFS is defined as the time from randomization until progression after surgery, or at surgery, if failure to resect gross disease, or at time of death from any cause after randomization.

Time frame: From randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regimen 1Event-free Survival (EFS)- Number of Participants With an Event31 Participants
Regimen 2Event-free Survival (EFS)- Number of Participants With an Event15 Participants
Secondary

OS- Time to Event

OS was defined as the time from randomization to death due to any cause. Data for partipants who were alive at the end of the study were censored at the last known alive date. Median OS was estimated using the Kaplan-Meier method.

Time frame: From randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)

ArmMeasureValue (MEDIAN)
Regimen 1OS- Time to EventNA Months
Regimen 2OS- Time to EventNA Months
p-value: 0.509195% CI: [0.5, 2.2]Log Rank
Secondary

Overall Survival (OS)- Number of Participants With an Event

OS was defined as the time from randomization to death due to any cause.

Time frame: From randomization up until the data cut-off date of June 2, 2022 (approximately 76 months)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regimen 1Overall Survival (OS)- Number of Participants With an Event19 Participants
Regimen 2Overall Survival (OS)- Number of Participants With an Event11 Participants
p-value: 0.388995% CI: [0.5, 2.2]Log Rank

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026