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CompletedNCT00005981Updated Jun 10, 2010

Combination Chemotherapy in Treating Patients With Metastatic Colorectal Cancer

A Phase 2 interventional study of O6-benzylguanine and carmustine in Colorectal Cancer, sponsored by Case Comprehensive Cancer Center. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2010-06-10.

Sponsored by Case Comprehensive Cancer Center · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
13
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells.

PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy in treating patients who have metastatic colorectal cancer.

Read the detailed description

OBJECTIVES:

  • Determine the response rate of patients with metastatic colorectal carcinoma treated with O6-benzylguanine and carmustine.
  • Evaluate tumor tissue biochemical and immunohistochemical predictors of response in patients treated with this regimen.
  • Correlate carcinoembryonic antigen levels in the peripheral blood with response in patients treated with this regimen.

OUTLINE: This is a multicenter study.

Patients receive O6-benzylguanine (BG) IV over 1 hour and carmustine IV over 1 hour (beginning 1 hour after completion of BG infusion) on day 1. Treatment continues every 6 weeks in the absence of disease progression or unacceptable toxicity.

Patients are followed every 3 months.

PROJECTED ACCRUAL: A total of 19-36 patients will be accrued for this study within 1.7-3 years.

02

Conditions studied

  • Colorectal Cancer

Keywords

  • stage IV colon cancer
  • stage IV rectal cancer
  • recurrent colon cancer
  • recurrent rectal cancer
03

In context

Colorectal Neoplasms

5,599 studies on the registry are indexed under Colorectal Neoplasms; 1,459 are open to participants now.

This study's enrollment of 13 is below the median of 77 across 4,123 interventional studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

Case Comprehensive Cancer Center is the lead sponsor of 484 studies on the registry; 59 are open to participants now.

Of its 74 completed or terminated interventional studies of FDA-regulated products, 45 (61%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

DISEASE CHARACTERISTICS:

  • Diagnosis of metastatic colorectal carcinoma
  • Bidimensionally measurable disease

PATIENT CHARACTERISTICS:

Age:

  • 18 and over

Performance status:

  • ECOG 0-2

Life expectancy:

  • At least 12 weeks

Hematopoietic:

  • WBC at least 4,000/mm\^3
  • Granulocyte count at least 1,500/mm\^3
  • Absolute neutrophil count at least 1,500/mm\^3
  • Platelet count at least 100,000/mm\^3
  • Hemoglobin greater than 8 g/dL

Hepatic:

  • Bilirubin no greater than 1.2 mg/dL
  • AST and ALT less than 2.5 times upper limit of normal (ULN)
  • PT no greater than ULN (not on anticoagulation therapy)

Renal:

  • Creatinine no greater than 1.5 mg/dL
  • Creatine clearance greater than 60 mL/min

Pulmonary:

  • DLCO at least 60%

Other:

  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception during and for 2 months after study
  • No other concurrent active malignancies
  • Prior malignancies presumed to be cured allowed
  • No other concurrent uncontrolled severe medical problem that would preclude study participation

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • Not specified

Chemotherapy:

  • At least 6 months since prior adjuvant chemotherapy without disease recurrence
  • No more than 1 prior chemotherapy regimen for metastatic disease

Endocrine therapy:

  • Not specified

Radiotherapy:

  • Prior adjuvant radiotherapy allowed
  • No prior radiotherapy to more than 25% of total bone marrow

Surgery:

  • Not specified

Other:

  • No other prior therapy for advanced disease
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
13 participants (actual)

Interventions

  • DrugO6-benzylguanine

    Patients receive O6-benzylguanine (BG) IV over 1 hour. Treatment continues every 6 weeks in the absence of disease progression or unacceptable toxicity.

  • Drugcarmustine

    Carmustine IV over 1 hour (beginning 1 hour after completion of BG infusion) on day 1. Treatment continues every 6 weeks in the absence of disease progression or unacceptable toxicity.

06

What researchers measure

Primary outcomes

  1. Determine the response rate of patients with metastatic colorectal carcinoma treated with O6-benzylguanine and carmustine.

    Time frame: Treatment continues every 6 weeks in the absence of disease progression or unacceptable toxicity.

07

Study locations

1 site
  • Ireland Cancer Center at University Hospitals Case Medical Center, Case Comprehensive Cancer Center
    Cleveland, Ohio 44106-5065, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 10, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00005981
Lead sponsor
Case Comprehensive Cancer Center
Collaborators
National Cancer Institute (NCI)
First posted
Jan 27, 2003
Start date
Jun 2000
Primary completion
Nov 2003
Completion
Nov 2003
Last update
Jun 10, 2010

Study contacts

Smitha Krishnamurthi, MD
study chair · Ireland Cancer Center at University Hospitals Case Medical Center, Case Comprehensive Cancer Center

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2010. You cannot join it, but the record below documents what was studied.

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