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Colorectal CancerPhase 2NCT00571740

Cetuximab and Bevacizumab as First-Line Therapy Followed By Combination Chemotherapy and Bevacizumab With or Without Cetuximab as Second-Line Therapy in Treating Patients With Stage IV Colorectal Cancer

A Phase 2 study testing bevacizumab, cetuximab and fluorouracil in people with Colorectal Cancer, run by Alliance for Clinical Trials in Oncology.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

RATIONALE: Monoclonal antibodies, such as cetuximab and bevacizumab, 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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colorectal Cancer
What is being tested?
bevacizumab, cetuximab and fluorouracil
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Start not givento not given
Phase
Phase 2
Are there results?
None posted in the registry

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

DISEASE CHARACTERISTICS:

  • Histologically confirmed stage IV colorectal cancer
  • Measurable disease, defined as at least one lesion whose longest diameter can be accurately measured as ≥ 2.0 cm by conventional techniques OR ≥ 1.0 cm by spiral CT scan
  • Must not be a candidate for neoadjuvant therapy
  • No CNS or brain metastases

PATIENT CHARACTERISTICS:

  • ECOG performance status 0-2
  • Life expectancy ≥ 12 weeks
  • ANC ≥ 1,500/mm^3
  • Platelet count ≥ 100,000/mm^3
  • Hemoglobin ≥ 10.0 g/dL
  • Total bilirubin < 1.5 times upper limit of normal (ULN)
  • Alkaline phosphatase ≤ 3 times ULN
  • AST ≤ 3 times ULN
  • Creatinine ≤ 1.5 x times ULN
  • Proteinuria < 1+ by urinalysis OR proteinuria < 1 g by 24-hour urine collection
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • English-speaking patients must have the ability to complete questionnaires by themselves or with assistance
  • Must be willing to provide blood and tissue samples for research purposes
  • No history of hypertensive crisis or hypertensive encephalopathy
  • No blood pressure > 150/100 mm Hg
  • No New York Heart Association (NYHA) class II-IV congestive heart failure
  • No myocardial infarction or unstable angina within the past 6 months
  • No stroke or transient ischemic attack within the past 6 months
  • No clinically significant vascular disease (e.g., aortic aneurysm or aortic dissection)
  • No clinically significant peripheral vascular disease
  • No evidence of bleeding diathesis or coagulopathy
  • No significant traumatic injury within the past 28 days
  • No abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within the past 6 months
  • No serious nonhealing wound, ulcer, or bone fracture

PRIOR CONCURRENT THERAPY:

  • No prior nonsurgical treatment for stage IV disease
  • Adjuvant therapy allowed if completed > 6 months prior to study registration
  • More than 4 weeks since prior and no concurrent or planned participation in another experimental drug study
  • No prior therapy that specifically and directly targets the EGFR pathway
  • No prior monoclonal antibody therapy
  • More than 28 days since prior major surgery or open biopsy
  • More than 7 days since prior minor surgery, such as fine-needle aspirations or core biopsies
  • Placement of a vascular access device does not have to meet this criterion
  • No concurrent major surgery

About this study

Official title: Randomized Phase II Trial of Cetuximab/Bevacizumab (CB) as Palliative First-Line Therapy in Patients With Advanced Colorectal Cancer Followed by FOLFOX+CB vs. FOLFOX+B

RATIONALE: Monoclonal antibodies, such as cetuximab and bevacizumab, 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. Bevacizumab may also stop the growth of tumor cells by blocking blood flow to the tumor. Drugs used in chemotherapy, such as oxaliplatin, leucovorin, and fluorouracil, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving monoclonal antibodies together with combination chemotherapy may kill more tumor cells.

PURPOSE: This randomized phase II trial is studying how well giving cetuximab together bevacizumab works as first-line therapy, followed by combination chemotherapy and bevacizumab with or without cetuximab as second-line therapy in treating patients with stage IV colorectal cancer.

Read the detailed description

OBJECTIVES:

Primary

  • To assess the efficacy of bevacizumab and cetuximab as first-line treatment for metastatic colorectal cancer, as measured by percentage of patients who remain progression-free at 6 months.

Secondary

  • To evaluate adverse events, confirmed response, duration of response, time to disease progression, time to treatment failure, and survival of patients treated with bevacizumab and cetuximab.
  • To evaluate adverse events, confirmed response, duration of response, time to disease progression, time to treatment failure, and survival of patients who are refractory to dual-agent bevacizumab and cetuximab and are subsequently treated with modified FOLFOX7 chemotherapy and bevacizumab with or without cetuximab.
  • To evaluate quality of life parameters in patients treated with these regimens.
  • To estimate the direct medical resource utilization and costs.
  • To assess the reliability of FDG-PET as a measurement of early treatment response, as measured by percentage of patients who are progression-free at 6 months.
  • To identify circulating angiogenesis biomarkers.
  • To assay the activity of pro-angiogenic factors in plasma angiogenic assays.

OUTLINE: This is a multicenter study*. Patients are stratified according to ECOG performance status (0-1 vs 2) and number of metastatic sites (1 vs > 1).

NOTE: *Participating site must be PET-qualified.

  • First-line therapy: Patients receive bevacizumab IV over 30-90 minutes and cetuximab IV over 2 hours on day 1. Treatment repeats every 2 weeks in the absence of disease progression or unacceptable toxicity. Patients with progressive disease proceed to second-line therapy.
  • Second-line therapy: Patients are randomized* to 1 of 2 treatment arms.
  • Arm I (modified FOLFOX7 with bevacizumab only): Patients receive bevacizumab IV over 30-90 minutes, oxaliplatin IV over 2 hours, and leucovorin calcium IV over 2 hours on day 1 and fluorouracil IV over 46 hours beginning on day 1. Treatment repeats every 2 weeks in the absence of disease progression or unacceptable toxicity.
  • Arm II (modified FOLFOX7 with bevacizumab and cetuximab): Patients receive bevacizumab and modified FOLFOX7 as in arm I. Patients also receive cetuximab IV over 2 hours on day 1. Treatment repeats every 2 weeks in the absence of disease progression or unacceptable toxicity.

NOTE: *Randomization occurs prior to receiving first-line therapy.

Patients undergo blood sample collection periodically for translational studies. Samples are analyzed for circulating endothelial cells and endothelial progenitor cells via flow cytometry; angiogenic activity of serum/plasma in angiogenesis-dependent diseases via endothelial proliferation assay and matrigel tube formation assay; and circulating angiogenesis biomarkers (i.e., free VEGF, soluble FLT-1, and KDR) via ELISA.

Quality of life is assessed periodically using the UNISCALE, Skindex-16, and Skin Assessment Questionnaires.

After completion of study treatment, patients are followed every 6 months for up to 3 years.

Keywords
stage IV colon cancer, stage IV rectal cancer, recurrent colon cancer, recurrent rectal 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.

Study groups in NCT00571740
Study groupRoleWhat they receive
Arm I (second-line therapy)Active comparatorPatients receive bevacizumab IV over 30-90 minutes, oxaliplatin IV over 2 hours, and leucovorin calcium IV over 2 hours on day 1 and fluorouracil IV over 46 hours beginning on day 1. Treatment repeats every 2 weeks in the absence of disease progression or unacceptable toxicity.
Receives: Biological: bevacizumab; Drug: fluorouracil; Drug: leucovorin calcium; Drug: oxaliplatin
Arm II (second-line therapy)ExperimentalPatients receive bevacizumab and modified FOLFOX7 as in arm I. Patients also receive cetuximab IV over 2 hours on day 1. Treatment repeats every 2 weeks in the absence of disease progression or unacceptable toxicity.
Receives: Biological: bevacizumab; Biological: cetuximab; Drug: fluorouracil; Drug: leucovorin calcium; Drug: oxaliplatin

What is being measured

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

  1. Progression-free survival (PFS) rate at 6 months

    Measured: at 6 months

Secondary outcomes (4)

  1. Tumor response rate associated with second-line therapy

    Measured: up to 3 years

  2. Time to progression during second-line therapy

    Measured: up to 3 years

  3. Duration of response

    Measured: up to 3 years

  4. Quality of life

    Measured: up to 3 years

Timeline

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

  1. First posted12 Dec 2007 (estimated)

Why it stopped: The study was not activated

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00571740
Sponsor's protocol ID
N0548
Other IDs
CDR0000578111, NCI-2009-00651
Status last verified
Jul 2016
First submitted
11 Dec 2007
Last updated
6 Jul 2016
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing bevacizumab, cetuximab and fluorouracil in people with Colorectal Cancer, run by Alliance for Clinical Trials in Oncology.

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

Who may be eligible to take part?

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: withdrawn, as of the sponsor's last update on 6 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.

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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Progression-free survival (PFS) rate at 6 months (time frame: at 6 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 NCT00571740.

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 6 Jul 2016.

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