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EGF-Depleting Therapy CIMAvax-EGF in Combination With Standard Therapy for RAS- and BRAF Wild-Type Metastatic Colorectal Cancer

A Phase 0 Study of EGF-Depleting Therapy CIMAvax-EGF in Combination With Standard Therapy for RAS- and BRAF Wild-Type Metastatic Colorectal Cancer

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06011772
Enrollment
2
Registered
2023-08-25
Start date
2023-12-18
Completion date
2026-12-04
Last updated
2026-03-11

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

Conditions

Colo-rectal Cancer

Brief summary

The purpose of this study is to determine the immunogenicity of the CIMAvaxEGF® vaccine (that is, its effectiveness in inducing an anti-tumor immune response) in patients with metastatic KRAS/NRAS/BRAF wild-type gene colorectal cancer, when given in combination with standard therapies used in the treatment of advanced colorectal cancer.

Detailed description

Primary Objective \- Determine the immunogenicity of CIMAvax in patients with metastatic, KRAS/NRAS/BRAF wild type CRC in combination with Chemotherapy plus appropriate biologic agent in 1st or 2nd/3rd line setting and chemotherapy plus anti-EGFR therapy in 2nd/3rd line setting.

Interventions

DRUGLeucovorin

Given IV

DRUGOxaliplatin

Given IV

DRUGFluorouracil

Given IV

BIOLOGICALBevacizumab

Given IV

DRUGIrinotecan

Given IV

BIOLOGICALCetuximab

Given IV

Undergo metastasectomy

PROCEDUREBiospecimen collection

Undergo collection of blood samples

PROCEDUREComputed Tomography

Undergo CT

BIOLOGICALPanitumumbab

Given IV

Sponsors

Roswell Park Cancer Institute
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically or cytologically confirmed metastatic adenocarcinoma of colon or rectum that cannot be removed by surgery without prior systemic therapy for advanced disease (prior adjuvant chemotherapy completed \>12 months from diagnosis of metastatic or advanced disease is allowed) for cohorts A and C and with one prior line of therapy but no more than 2 prior lines of therapy for advanced disease (prior adjuvant chemotherapy completed \<12 months from diagnosis of metastatic or advanced disease is considered one line of therapy). * Cohort A: May have received 1 cycle of chemotherapy± appropriate biologic agent pending results of RAS and BRAF. If results determine patient is eligible, the patient will be enrolled and will receive the addition of CIMAvax + Bevacizumab or CIMAvax+ anti-EGFR therapy in their second cycle. * Cohort B: Patients with RAS- and BRAF wild-type metastatic CRC who have received at least one but no more than 2 prior therapies for advanced disease * Cohort C: Patients with RAS- and BRAF wild-type metastatic CRC who have not received prior therapy for advanced disease and are candidates for metastatic disease resistant resection (one cycle of standard chemotherapy with or without appropriate biologic agent is allowed) * KRAS/NRAS/BRAF wild-type. * Have an ECOG Performance Status of 0-2 * Patients must have adequate organ and marrow function as defined below: * Absolute neutrophil count (ANC) ≥ 1.5 x 109/L * Platelets ≥ 75 x 10\^9/L * Hemoglobin ≥ 8 g/dL * Creatinine clearance\> 60 mL/min (Cockcroft-Gault Equation) * ALT and AST ≤ 3 x ULN (ALT and AST ≤ 5 x ULN is acceptable if liver metastases are present * Total bilirubin ≤ 1.5x ULN. For patients with well documented Gilbert's syndrome, total bilirubin ≤ 3x ULN with direct bilirubin within normal range * Have measurable disease per RECIST 1.1 criteria present. * Participants of child-bearing potential must agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) prior to study entry. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. * Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure. * Participant agrees to provide paired-tumor biopsy tissue while on study (cohort A and B) or allow tissue to be taken during surgery (cohort C)

Exclusion criteria

* Toxicity ≥Grade 2 from prior chemotherapy with exception to Grade 2 peripheral neuropathy.. * Other cancer requiring active treatment. * Prior exposure to anti-EGFR monoclonal antibody (i.e. cetuximab or panitumumab) for colorectal cancer treatment is exclusionary to Cohort A and C only * Participants with Her2 positive mutational status * Had major surgery within 4 weeks prior to starting study drug or has not recovered from major side effects (tumor biopsy is not considered major surgery) resulting from a prior surgery. * Has known immunosuppressive disease (e.g. HIV, AIDS or other immune depressing disease). Testing is not mandatory. * Participants with known active brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. * Active, clinically serious infections or other serious uncontrolled medical conditions or psychiatric illness/social situations that would limit compliance with study requirements. * History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the patient's participation for the full duration of the study, or is not in the best interest of the patient to participate, in the opinion of the treating Investigator, including, but not limited to: * Myocardial infarction or arterial thromboembolic events within 6 months prior to baseline or severe or unstable angina, New York Heart Association (NYHA) Class III or IV disease * History of documented congestive heart failure (New York Heart Association functional classification III or IV) within 6 months prior to baseline * Uncontrolled hypertension (SBP\>160/DBP\>100 despite medical intervention). * History of myocarditis of any etiology * History of ventricular arrhythmias * Active major or clinically significant bleeding based on the International Society on Thrombosis and Hemostasis definition. * Pregnant or nursing female participants.

Design outcomes

Primary

MeasureTime frameDescription
Immunogencity of vaccineup to 60 days after last dosePercentage of patients with antibody titers greater than or equal to 1:4000 using a 90% confidence interval obtained by Jeffery's prior method

Secondary

MeasureTime frame
Progression free survivaltime from treatment until disease progression, death or last follow up assesed up to 2 years

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORAnuradha Krishnamurthy, MBBS

Roswell Park Comprehensive Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026