Clinical Trials

The James Cancer Center Columbus, OH

open for enrollment

Panitumumab and Combination Chemotherapy in Treating Patients With Metastatic Colorectal Cancer Previously Treated With Combination Chemotherapy and Bevacizumab

Protocol: OSU-11131

Full Title

A Phase II Study of Panitumumab in Combination with FOLFIRI after Progression on FOLFIRI Plus Bevacizumab in KRAS Wild Type Metastatic Colorectal Cancer.


This phase II trial studies how well panitumumab and combination chemotherapy works in treating patients with metastatic colorectal cancer previously treated with combination chemotherapy and bevacizumab. Monoclonal antibodies, such as panitumumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Drugs used in chemotherapy, such as leucovorin calcium, fluorouracil, and irinotecan hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving panitumumab and combination chemotherapy together may kill more tumor cells.

Study Objective


I. To determine the median progression-free survival in patients treated with leucovorin calcium, fluorouracil, and irinotecan hydrochloride (FOLFIRI) and panitumumab who have retrovirus-associated deoxyribonucleic acid (DNA) sequence (RAS) wild-type, metastatic colorectal carcinoma and have already progressed on FOLFIRI + Bevacizumab.


I. To determine the frequency and severity of toxicities of the regimens.

II. To determine overall response rate.

III. To determine the median overall survival and the overall survival rate at 1 year.


Patients receive panitumumab intravenously (IV) over 60-90 minutes, leucovorin calcium IV over 120 minutes, fluorouracil IV continuously over 46 hours, and irinotecan hydrochloride IV over 90 minutes on days 1 and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up periodically.

Are you eligible?

Inclusion Criteria:

Patients with advanced adenocarcinoma of the colon or rectum not curable with surgery or radiotherapy and have been previously treated for their disease with FOLFIRI plus bevacizumab in the first line metastatic setting; patients will only be eligible if their last line of therapy prior to enrolling onto the study was FOLFIRI and bevacizumab received no more than 6 months prior to enrolling in this study; they should have been treated with FOLFIRI plus bevacizumab until disease progression is radiographically documented

Patients’ tumors will need to tested for the RAS mutation status; only those patients with wild-type or unmutated RAS oncogene are eligible to participate in this study

Provide written informed consent prior to study-specific screening procedures, with the understanding that the patient has the right to withdraw from the study at any time, without prejudice

Prior cetuximab is allowed in the adjuvant but not in the metastatic setting, but must have been completed at least 6 months before starting this trial

Eastern Cooperative Oncology Group (ECOG) performance status =< 1

Life expectancy greater than 12 weeks

No active brain metastasis; previously surgically treated or irradiated lesions are allowed if not clinically active

Has a negative serum pregnancy test within 7 days prior to registration (female patients of childbearing potential)

Ability to understand and willingness to sign a written informed consent

No history of severe reactions to fluorouracil (5-FU), irinotecan (irinotecan hydrochloride), or a monoclonal antibody

Leukocytes >= 3000/uL

Absolute neutrophil count >= 1500/uL

Platelets >= 100,000/uL

Hemoglobin >= 9 mg/dL

Total bilirubin =< 1.5 X upper limit of normal (ULN)

Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 3 X ULN (or < 5 x ULN with liver metastases)

Creatinine clearance (CrCl) >= 30 ml/min (Cockroft-Gault equation)

Magnesium >= lower limit of normal

Measurable disease is required according to Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria

Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation and up to 6 months after completing therapy; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately

Exclusion Criteria:

Pregnant or lactating women; women of childbearing potential with either a positive or no pregnancy test at baseline; woman or men of childbearing potential not using a reliable and appropriate contraceptive method; (postmenopausal woman must have been amenorrheic for at least 12 months to be considered of non-childbearing potential)

Sexually active males unwilling to practice contraception during the study and 6 months beyond

History of interstitial lung disease (eg, pneumonitis or pulmonary fibrosis) or evidence of interstitial lung disease on baseline chest computed tomography (CT) scan

V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) or neuroblastoma (N) RAS mutant tumors

Active inflammatory bowel disease or other bowel disease causing chronic diarrhea (defined as >= Common Toxicity Criteria [CTC] grade 2 [Common Terminology Criteria for Adverse Events (CTCAE) version 4.0])

Clinically significant cardiovascular disease (including myocardial infarction, unstable angina, symptomatic congestive heart failure, serious uncontrolled cardiac arrhythmia) =< 1 year or serious concurrent infection

Bevacizumab within the last 3 weeks before enrollment on trial

Patient is more than 6 months since the last dose of FOLFIRI

Patients who have required toxicity related dose reductions of greater than 50% of the original dose of infusional 5-FU and/or irinotecan during the administration of FOLFIRI/bevacizumab

Prior exposure to panitumumab in any setting

Prior exposure to cetuximab in the metastatic (stage IV) setting

Radiotherapy =< 14 days prior to enrollment; patients must have recovered from all radiotherapy-related toxicities

Prior unanticipated severe reaction to fluoropyrimidine therapy, or known sensitivity to 5-fluorouracil, leucovorin (leucovorin calcium), irinotecan, or panitumumab

Concomitant use of cytochrome P450, family 3, subfamily A, polypeptide 4 (CYP3A4) inducers are not permitted

Treatment for other carcinomas within the last three years, except cured non-melanoma skin and treated in-situ cervical cancer

Participation in any investigational drug study within 4 weeks preceding enrollment

Other serious uncontrolled medical conditions that the investigator feels might compromise study participation

Incomplete recovery from major surgery within 4 weeks of enrollment

Unwillingness to give written informed consent

Unwillingness to participate or inability to comply with the protocol for the duration of the study

Patients with human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) and those severely immunocompromised will be excluded; however, no patients will be tested for HIV

Colon Cancer Rectal Cancer Gastrointestinal Cancers