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Metastatic Colorectal CancerPhase 2NCT00326495

BAY 43-9006 Plus Cetuximab to Treat Colorectal Cancer

A Phase 2 study testing Cetuximab and BAY 43-9006 in people with Metastatic Colorectal Cancer, run by National Cancer Institute (NCI) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Background: Colorectal cancer (CRC) is a major public health problem in the U.S. and worldwide, and 5-year survival with widespread metastatic disease is less than 5%. Expression of epidermal growth factor receptor (EGFR) or up-regulation of the gene occurs in the majority of CRC cases (60-80%). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Metastatic Colorectal Cancer
What is being tested?
Cetuximab and BAY 43-9006
Could I receive a placebo?
No, everyone receives an active treatment
How many people
51 participants
Where
1 siteUnited States
Study dates
10 May 2006to 7 Nov 2014
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must have histologically or cytologically documented metastatic colorectal cancer, which has recurred or progressed following at least one prior chemotherapy regimen administered for the treatment of metastatic disease. The diagnosis should be confirmed by the Laboratory of Pathology at the Clinical Center, NIH (National Institutes of Health).
  • Tumor should express epidermal growth factor receptor (EGFR), defined as any membrane staining for EGFR in tumor cells by immunohistochemistry (IHC) done on archival tumor blocks or slides.
  • Tumor blocks or unstained slides from archival pathological specimen suitable for the isolation of genomic DNA (deoxyribonucleic acid) must be available to determine the status of mutations in KRAS in the tumor. (For the initial 13 evaluable patients already enrolled and treated on this study, every effort will be made to re-acquire these blocks from patients or their referring physicians for evaluation of KRAS.)
  • Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded) as greater than or equal to 20 mm with conventional techniques or as greater than or equal to 10 mm with spiral computed tomography (CT) scan.
  • Patients must have received or been offered and declined at least one prior Fluorouracil (5FU)-containing combination chemotherapy regimen for metastatic disease, unless available chemotherapy regimens were for some reason contraindicated for a particular patient. Patients who have received chemotherapy and/or biologic therapy, excluding BAY 43-9006 or cetuximab, are eligible. This therapy must have been completed greater than or equal to 4 weeks prior to enrollment on protocol, and the patient must have recovered to eligibility levels from prior toxicity. Prior radiation or surgery should have been completed greater than or equal to 4 weeks prior to study enrollment and all associated toxicities resolved to eligibility levels.
  • Age greater than or equal to18 years. Colorectal cancer does not usually occur in patients less than 18 years of age.
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  • Life expectancy greater than 3 months.
  • ECOG (Eastern Cooperative Oncology Group) performance status 0 or 1.
  • Patients must have normal organ and marrow function as defined below:
  • absolute neutrophil count greater than or equal to 1,500/ microliter
  • platelets greater than or equal to 100,000/ microliter
  • total bilirubin less than or equal to 1.5 times the institutional upper limits of normal
  • AST (aspartate aminotransferase) (SGOT (serum glutamic oxaloacetic transaminase))/ALT (alanine aminotransferase) (SGPT (serum glutamic pyruvic transaminase) less than or equal to 2.5 times the institutional upper limit of normal
  • creatinine less than or equal to 1.5 times the institutional upper limits of normal
  • OR
  • creatinine clearance greater than or equal to 60 mL/min/1.73 m^2
  • PT (prothrombin time)/PTT (partial thromboplastin time) less than or equal to 1.5 times the institutional upper limits of normal
  • Patients must have at least one lesion amenable to biopsy, as determined by an associate investigator after discussion with a member of the interventional radiology team. This lesion should be different from target lesion(s) being followed on imaging studies to evaluate response to treatment.
  • The effects of the combination of BAY 43-9006 and cetuximab on the developing human fetus at the recommended therapeutic doses are unknown. For this reason and because raf kinase inhibitor agents used in this trial are known to be teratogenic, 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, for the duration of study participation, and for at least 2 months following completion of study. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
  • Ability to understand and the willingness to sign a written informed consent document and the ability to comply with daily oral self administration schedule.
  • Patients must have systolic blood pressure less than or equal to 150 mm Hg and diastolic blood pressure less than or equal to 90 mmHg. Concomitant antihypertensive medications to achieve control of blood pressure are allowed.
  • Both men and women and members of all races and ethnic groups are eligible for this trial.

Who cannot join

  • Patients who have had chemotherapy, biologic therapy, or radiotherapy within 4 weeks prior to entering the study or those who have not recovered to at least eligibility levels from adverse events due to agents administered more than 4 weeks earlier. Patients must be greater than or equal to 2 weeks since any investigational agent administered as part of a Phase 0 study (also referred to as an early Phase I study or pre-Phase I study where a sub-therapeutic dose of drug is administered) at the PIs (principal investigator's) discretion, and should have recovered to eligibility levels from any toxicities
  • Patients who have received any other investigational agents within 4 weeks prior to entering the study or those who have not recovered to at least eligibility levels from adverse events due to agents administered more than 4 weeks earlier.
  • Patients with known brain metastases would be excluded from this clinical trial, with the exception of patients whose brain metastatic disease status remains stable for greater than or equal to 6 months after treatment of the brain metastases without steroids or anti seizure medications. These patients may be enrolled at the discretion of the principal investigator.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to BAY 43-9006 (for example, other multi-targeted kinase inhibitors, such as sunitinib) or cetuximab (for example, other drugs containing murine proteins, such as bevacizumab) used in the study.
  • Prior therapy with cetuximab or BAY 43-9006.
  • Patients on therapeutic anticoagulation are excluded. Prophylactic anticoagulation (i.e. low dose warfarin) of venous or arterial access devices is allowed provided that the requirements for PT, INR (International normalized ratio) or PTT are met.
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  • Evidence of bleeding diathesis.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active serious infection, symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmia, uncontrolled hypertension, or psychiatric illness/social situations that would limit compliance with study requirements.
  • Pregnant women are excluded from this study because BAY 43-9006 is a kinase inhibitor agent with 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 BAY 43-9006, breastfeeding should be discontinued if the mother is treated with BAY 43-9006.
  • Human immunodeficiency virus (HIV)-positive patients receiving anti-retroviral therapy are excluded from this study due to the possibility of pharmacokinetic interactions between anti-retroviral medications and BAY 43-9006. HIV positive patients not receiving antiretroviral therapy are excluded due to the possibility that BAY 43-9006 may worsen their condition and the likelihood that the underlying condition may obscure the attribution of adverse events with respect to BAY 43-9006.
  • History of another malignancy within the past 5 years, apart from adequately treated non-melanoma skin cancers, superficial bladder cancer or in situ cervical cancer.
  • Patients with conditions that would impair their ability to swallow tablets are excluded.
  • Use of the following medications will be not be allowed within 4 weeks prior to enrollment on the study and during the study: ketoconazole, itraconazole, ritonavir, cyclosporine, carbamazepine, phenytoin, phenobarbital, rifampin, St. Johns Wort, and prophylactic use of filgrastim and sargramostim. Products containing grapefruit juice will not be allowed while on study. BAY 43-9006 tosylate is metabolized by the P450 CYP3A enzyme; therefore, it is possible that BAY 43-9006 tosylate may interact with the above medications. Efforts should be made to switch patients who are taking enzyme-inducing anticonvulsant agents to other medications.
  • Patients in whom resection is indicated and can be performed safely (unless surgery is declined by the patient for other reasons).
  • For the optional PET/CT imaging with (89)Zr-panitumumab correlative study, participants with severe claustrophobia not relieved by oral anxiolytic medication or patients weighing > 136 kg (weight limit for scanner table).

Trial locations and contacts

1 site in 1 country.

United States1 site

  • National Institutes of Health Clinical Center, 9000 Rockville Pike

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: A Phase II Study of BAY 43-9006 (Sorafenib) in Combination With Cetuximab (Erbitux ) in EGFR Expressing Metastatic Colorectal Cancer (CRC)

Background:

  • Colorectal cancer (CRC) is a major public health problem in the U.S. and worldwide, and 5-year survival with widespread metastatic disease is less than 5%.
  • Expression of epidermal growth factor receptor (EGFR) or up-regulation of the gene occurs in the majority of CRC cases (60-80%).
  • Therapies targeting EGFR, like cetuximab, have shown activity in the treatment of solid tumors like CRC.
  • Cetuximab is FDA (Food and Drug Administration) approved for the treatment of EGFR-expressing CRC, but clinical responses to cetuximab are seen in only 10% of EGFR-expressing CRC.
  • One possible mechanism of resistance to cetuximab could be KRAS (Kirsten rat sarcoma) mutations.
  • Another major pathway implicated in colon carcinogenesis is the vascular endothelial growth factor (VEGF) pathway, which is involved in angiogenesis and is a validated target for therapy in CRC.
  • BAY 43-9006 is both a Raf kinase inhibitor and an inhibitor of VEGF receptor (VEGFR2) tyrosine kinase.
  • We hypothesize that the combined inhibition of EGFR, VEGFR2, and the Ras-(rapidly accelerated fibrosarcoma) Raf pathway will demonstrate promising clinical activity in CRC. Furthermore, in patients with mutant KRAS, combination of cetuximab with a drug that inhibits Raf kinase and acts downstream of Ras mutations, could restore tumor sensitivity to cetuximab.
Read more

Objectives:

  • To determine the rate of response (complete response (CR) + partial response (PR) + stable disease (SD) for 4 months) and toxicity profile of combination of BAY 43-9006 and cetuximab in previously treated EGFR-expressing metastatic CRC in patients with mutant KRAS.
  • To evaluate BAY 43-9006 pharmacokinetics \& pharmacogenomics (CYP3A4/5 (cytochrome P450 3A4/5)).
  • To evaluate for this combination treatment pharmacodynamics, effect on tumor vascularity and effect on angiogenic cytokines.

Eligibility:

  • Adults with histologically or cytologically documented, measurable, EGFR-expressing metastatic CRC, which has recurred or progressed following at least one prior 5FU (Fluorouracil)-based combination chemotherapy regimen administered for the treatment of metastatic disease.
  • Patients must be KRAS mutation-positive.

Design:

  • BAY 43-9006 will be administered 400 mg by mouth twice daily
  • Cetuximab will be administered as 400 mg/m^2 loading dose (week 1) followed by 250 mg/m^2 IV (intravenous) weekly.
  • If procedure may be performed safely, tumor biopsy will be obtained prior to treatment and after 4 weeks of treatment.
  • Optional positron emission tomography (PET)/computerized tomography (CT) imaging with 89Zr-labeled, EGFR-targeting antibody panitumumab may be performed to evaluate radiation dosimetry, safety, and tumor distribution prior to and following treatment with study agents.
  • Patients will be evaluated for response every 8 weeks using the RECIST (Response Evaluation Criteria in Solid Tumors) criteria.
  • This trial uses a phase II optimal design targeting a response rate as defined above of 20% in patients with mutant KRAS. Up to 49 patients may be treated.
Read the detailed description

Background:

Colorectal cancer (CRC) is a major public health problem; 5-year survival with widespread metastatic disease is less than 5%. Expression of epidermal growth factor receptor (EGFR) or up-regulation of the gene occurs in 60-80% of cases. Therapies targeting EGFR, like cetuximab, have shown activity in the treatment of solid tumors like CRC.

Cetuximab is Food and Drug Administration (FDA) approved for the treatment of EGFR-expressing CRC, but clinical responses to cetuximab are seen in only 10% of EGFR-expressing CRC. Recent data strongly implicate KRAS (Kirsten rat sarcoma viral oncogene homolog) mutations as a mechanism of resistance to anti-EGFR antibody therapies such as cetuximab.

Another major pathway implicated in colon carcinogenesis is the vascular endothelial growth factor (VEGF) pathway, which is involved in angiogenesis and is a validated target for therapy in CRC. BAY 43-9006 is both a Raf kinase inhibitor and an inhibitor of VEGF receptor (VEGFR2) tyrosine kinase.

We hypothesize that the combined inhibition of EGFR, VEGFR2, and the Ras-Raf pathway will demonstrate promising clinical activity in CRC; furthermore, in patients with mutant KRAS, combination of cetuximab with a drug that inhibits Raf kinase and acts downstream of Ras mutations, could restore tumor sensitivity to cetuximab.

Objectives:

To determine the rate of response (CR (complete response) +PR (partial response) +SD (stable disease) for 4 months) and toxicity profile of combination of BAY 43-9006 and cetuximab in previously treated EGFR-expressing metastatic CRC in patients with mutant KRAS.

To evaluate BAY 43-9006 pharmacokinetics \& pharmacogenomics (CYP3A4/5).

To evaluate for this combination treatment pharmacodynamics in tumor biopsies, effect on tumor vascularity, and effect on angiogenic cytokines.

Eligibility:

Adults with histologically or cytologically documented, measurable, EGFR-expressing metastatic CRC, which has recurred or progressed following at least one prior Fluorouracil (5FU)-based combination chemotherapy regimen administered for the treatment of metastatic disease.

Patients must be KRAS mutation-positive

Design:

BAY 43-9006 will be administered 400 mg by mouth twice daily. Cetuximab will be administered as 400 mg/m^2 loading dose (week 1) followed by 250 mg/m^2 intravenous (IV) weekly.

Optional PET (positron emission tomography) /CT (computed tomography) imaging with (89)Zr-labeled, EGFR-targeting antibody panitumumab may be performed to evaluate radiation dosimetry, safety, and tumor distribution prior to and following treatment with study agents.

Patients will be evaluated for response every 8 weeks using the Response Evaluation Criteria in Solid Tumor (RECIST) criteria.

This trial uses a phase II optimal design targeting a response rate as defined above of 20% in patients with mutant KRAS. Up to 49 patients may be treated.

Patients will be stratified by tumor KRAS status (wild type vs. codon 12/13 mutation in KRAS).

Optional correlative (89)Zr-panitumumab PET/CT imaging may be performed in up to 20 participants. For the first 5 patients, (89)Zr-panitumumab will be administered at baseline (within 10 days prior to starting cetuximab). PET/CT imaging will be performed up to 4 times: 2-6 hours following (89)Zr-panitumumab injection, 1-3 days following injection, 7-8 days following injection, and at the end of cycle 1/beginning of cycle 2, to obtain human dosimetry calculations.

If uptake into tumors is shown to be measurable in these first 5 patients, up to 15 subsequent

patients will be administered (89)Zr-panitumumab before cetuximab infusion (within 10 days prior to starting cetuximab) and have one PET/CT scan prior to the initial cetuximab infusion and a second (89)Zr-panitumumab infusion and scan at the end of cycle 1/beginning of cycle 2 (not shown in schema).

A diary will be provided for subjects to record taking study medication and side effects.

Being tested
Cetuximab, BAY 43-9006
Keywords
Sorafenib, Cetuximab, Advanced Cancer, Phase II, Colorectal Cancer, Colon Cancer, Rectal Cancer, CRC, Metastatic Colorectal Cancer
Medical subject headings
Colorectal Neoplasms, Colonic Neoplasms, Rectal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CetuximabDrug

    Also called Erbitux

    Cetuximab is a recombinant human/mouse chimeric monoclonal antibody which binds specifically to the extracellular domain of the epidermal growth factor receptor (epidermal growth factor receptor (EGFR), human epidermal growth factor receptor 1 (HER1), c-ErbB) in normal and tumor cells, and competitively inhibits the binding of epidermal growth factor (EGF) and other ligands, such as transforming growth factor-alpha.

  • BAY 43-9006Drug

    Also called Sorafenib

    Is a potent inhibitor of proto-oncogene c-Raf (c-raf), and wild-type and mutant proto-oncogene b-Raf (b-raf) in vitro

Study groups in NCT00326495
Study groupRoleWhat they receive
BAY 43-9006 & CetuximabExperimentalBAY 43-9006: Administered orally at a dose of 400 mg twice a day (BID). Cetuximab will be given intravenously (IV) at a dose of 400 mg/m^2 initially as a loading dose on week 2, followed by 250 mg/m^2 weekly starting on week 3
Receives: Drug: Cetuximab; Drug: BAY 43-9006

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall Rate of Response

    Rate of response is defined as the percentage of participants with a complete response (CR) + partial response (PR) + stable disease (SD) for 4 months. Response is defined by the Response is determined by the Response Evaluation Criteria in Solid Tumors (RECIST). Partial response is at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. Complete response is a disappearance of all target lesions. Stable disease is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD (progressive disease), taking as reference the smallest sum LD since the treatment started. Progressive disease is at least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions.

    Measured: 4 months

Secondary outcomes (1)

  1. Count of Participants With Adverse Events

    Here is the number of participants with adverse events. For a detailed list of adverse events, see the adverse event module.

    Measured: 96 months, 26 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 May 2006 (estimated)
  2. Study start10 May 2006
  3. Primary completion5 Nov 2014
  4. Study completion7 Nov 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00326495
Sponsor's protocol ID
060164
Other IDs
06-C-0164
Status last verified
Jun 2017
First submitted
16 May 2006
Last updated
24 Jul 2017
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Cunningham D, Humblet Y, Siena S, Khayat D, Bleiberg H, Santoro A, Bets D, Mueser M, Harstrick A, Verslype C, Chau I, Van Cutsem E. Cetuximab monotherapy and cetuximab plus irinotecan in irinotecan-refractory metastatic colorectal cancer. N Engl J Med. 2004 Jul 22;351(4):337-45. doi: 10.1056/NEJMoa033025.

    PubMed 15269313

  • Messa C, Russo F, Caruso MG, Di Leo A. EGF, TGF-alpha, and EGF-R in human colorectal adenocarcinoma. Acta Oncol. 1998;37(3):285-9. doi: 10.1080/028418698429595.

    PubMed 9677101

  • Khosravi-Far R, Der CJ. The Ras signal transduction pathway. Cancer Metastasis Rev. 1994 Mar;13(1):67-89. doi: 10.1007/BF00690419.

    PubMed 8143346

  • Do K, Cao L, Kang Z, Turkbey B, Lindenberg ML, Larkins E, Holkova B, Steinberg SM, Raffeld M, Peer CJ, Figg WD, Eugeni M, Jacobs P, Choyke P, Wright JJ, Doroshow JH, Kummar S. A Phase II Study of Sorafenib Combined With Cetuximab in EGFR-Expressing, KRAS-Mutated Metastatic Colorectal Cancer. Clin Colorectal Cancer. 2015 Sep;14(3):154-61. doi: 10.1016/j.clcc.2015.02.007. Epub 2015 Mar 7.

    PubMed 25861837

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Cetuximab and BAY 43-9006 in people with Metastatic Colorectal Cancer, run by National Cancer Institute (NCI) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 22 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 7 Aug 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Rate of Response (time frame: 4 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00326495, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jul 2017.

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