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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00961220
Other study ID # NCI-2012-02927
Secondary ID NCI-2012-0292734
Status Completed
Phase Phase 1/Phase 2
First received
Last updated
Start date February 1, 2010
Est. completion date April 8, 2014

Study information

Verified date April 2018
Source National Cancer Institute (NCI)
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This phase I/II trial studies the side effects and best dose of carmustine when given together with O6-benzylguanine and to see how well they work in treating patients with stage IA-IIA cutaneous T-cell lymphoma. Drugs used in chemotherapy, such as carmustine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. O6-benzylguanine may help carmustine work better by making cancer cells more sensitive to the drug. Giving O6-benzylguanine with carmustine may kill more cancer cells.


Description:

PRIMARY OBJECTIVES:

I. To determine the cutaneous T-cell Lymphoma (CTCL) response rate and safety of O6BG (O6-benzylguanine) /BCNU (carmustine) when given biweekly as two consecutive daily doses.

SECONDARY OBJECTIVES:

I. To determine the laboratory correlates of clinical response and drug efficacy based upon O6-alkylguanine deoxyribonucleic acid (DNA) alkyltransferase (AGT) activity in CTCL lesions will be examined to determine the effects of consecutive day O6BG administration on the extent and duration of AGT depletion.

II. To determine the laboratory correlates of clinical response and drug efficacy based upon degree of induction of apoptosis and cell cycle arrest will be examined in the malignant T-cell population of lymphomatous tissue and in the constitutive cells of the skin to determine drug efficacy and toxicity through immunohistochemical techniques.

III. To determine the laboratory correlates of clinical response and drug efficacy based upon O-6-methylguanine-DNA methyltransferase (MGMT) gene mutations and changes in AGT expression will be examined as potential mechanisms for O6BG resistance in non-responding patients.

OUTLINE: This is a phase I, dose-escalation study of carmustine followed by a phase II study.

Patients receive O6-benzylguanine intravenously (IV) over 1 hour and apply topical carmustine to the total skin surface (excluding the lips, eyelids, and ulcerated lesions) 1 hour after completing O6-benzylguanine infusion on days 1-2. Treatment repeats every 2 weeks for up to 12 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 2 weeks.


Recruitment information / eligibility

Status Completed
Enrollment 17
Est. completion date April 8, 2014
Est. primary completion date April 8, 2012
Accepts healthy volunteers No
Gender All
Age group 19 Years and older
Eligibility Inclusion Criteria:

- Diagnosis of CTCL stages IA-IIA by histopathology and immunohistochemistry in screening biopsies confirmed at Case Western Reserve University within 6 months of enrollment; biopsies may be performed at the site of collaborating institutions and shipped to University Hospitals of Cleveland-Case Western Reserve University (UHC-CWRU)

- Performance status Eastern Cooperative Oncology Group (ECOG) grade 0, 1, or 2

- Patients must have recovered from toxicity of prior treatment and have received no CTCL therapy other than emollition for at least 4 weeks, with the exception of topical corticosteroids, which may be used up to 2 weeks before the trial start date

- Patients must have signed a consent form indicating the investigational nature of the treatment and its potential side effects

- White blood cell (WBC) at least 3.5 x10E9/L

- Absolute neutrophil count (ANC) at least 1.6 x10E9/L

- Platelets > 100,000/ul

- Bilirubin < 1.5 mg/dL

- Serum glutamic oxaloacetic transaminase (SGOT) within normal range

- Creatinine =< 1.5 mg/dL

- Electrolytes normal

- Controlled (diet and insulin) diabetes is permitted

- Demonstration of clinically normal lung function based on history and physical examination; patients with clinical evidence of pulmonary disease as determined by the investigator should have baseline lung function tests performed with demonstration of diffusing capacity of the lung for carbon monoxide (DLCO) >= 70%; a DLCO single breath, adjusted for hemoglobin, will be utilized; we will not use DLCO/alveolar volume (VA) for inclusion or exclusion in this study

- Patients must have cutaneous disease that is amenable to biopsy and must be willing to undergo several sequential biopsies

- Must have failed at least one conventional treatment for CTCL other than topical corticosteroids; this includes phototherapy, topical mechlorethamine, topical or oral bexarotene, radiation therapy, photopheresis, chemotherapy, and immunomodulatory agents such as interferon and other retinoids

Exclusion Criteria:

- Patients who have received prior treatment with topical or systemic BCNU or other nitrosoureas

- Patients with known central nervous system involvement or primary central nervous system (CNS) malignancies

- Patients with performance status ECOG grade 3 or 4

- Pregnant women, women who are breast feeding infants, or women with reproductive potential not practicing adequate contraception

- Patients with an active infection which requires hospitalization, or which may affect the patient?s safety if the patient was enrolled

- Patients with pulmonary disease as determined by history, physical examination, chest X-ray, or pulse oximetry with < 70% predicted DLCO

- CTCL patients with stage IIB-IVB disease

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Carmustine
Applied topically
Other:
Laboratory Biomarker Analysis
Correlative studies
Drug:
O6-Benzylguanine
Given IV

Locations

Country Name City State
United States Case Comprehensive Cancer Center Cleveland Ohio
United States Case Western Reserve University Cleveland Ohio
United States Ohio State University Comprehensive Cancer Center Columbus Ohio
United States Henry Ford Hospital Detroit Michigan

Sponsors (1)

Lead Sponsor Collaborator
National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Overall Response Rate Based on changes in modified SWAT assessment, patient responses will be classified as complete clinical response (CCR), partial response (PR), stable disease (SD), or progressive disease (PD). SWAT provides an accurate and reproducible assessment of cutaneous disease involvement based on body surface area of involvement and lesional thickness.
CCR: No evidence of disease, 100% improvement for a duration of at least 4 weeks. PR: Greater than or equal to 50% decrease in SWAT score compared to baseline and improvement is maintained for at least 4 weeks. SD: Less than 50% decrease in SWAT score compared to baseline. PD: Increase of greater or equal to 25% of the SWAT score compared to baseline while the patient is actively taking the study drug
Up to 2 weeks after completion of study treatment
Secondary Changes in AGT (O6-alkylguanine DNA Alkyltransferase) Activity Examine AGT depletion at baseline, 24 hrs or 48 hrs, and 1 week after the first Infusion of O6BG. AGT levels will be determined by biochemical activity assay. Baseline
Secondary Changes in AGT (O6-alkylguanine DNA Alkyltransferase) Activity Examine AGT depletion at baseline, 24 hrs or 48 hrs, and 1 week after the first Infusion of O6BG. AGT levels will be determined by biochemical activity assay. 24 hours after the first infusion
Secondary Changes in AGT (O6-alkylguanine DNA Alkyltransferase) Activity Examine AGT depletion at baseline, 24 hrs or 48 hrs, and 1 week after the first Infusion of O6BG. AGT levels will be determined by biochemical activity assay. 48 hours after the first infusion
Secondary Changes in AGT (O6-alkylguanine DNA Alkyltransferase) Activity Examine AGT depletion at baseline, 24 hrs or 48 hrs, and 1 week after the first Infusion of O6BG. AGT levels will be determined by biochemical activity assay. 1 week after the first infusion
Secondary Changes in the Apoptosis Comparing skin biopsy specimens of BCNU-protected CTCL lesional specimens vs BCNU-treated lesional specimens at 24 hours, using immunohistochemical staining for Ki-67, PCNA, bcl-2, and caspase-3, as well as y2HAX and TUNEL assays. The apoptotic index will be calculated from these results. at 24 hours after the first infusion
Secondary Changes in the Apoptosis Comparing skin biopsy specimens of BCNU-protected CTCL lesional specimens vs BCNU-treated lesional specimens at 48 hours, using immunohistochemical staining for Ki-67, PCNA, bcl-2, and caspase-3, as well as y2HAX and TUNEL assays. The apoptotic index will be calculated from these results. at 48 hours after the first infusion
Secondary Changes in the Cell Cycle/Proliferation Comparing skin biopsy specimens of BCNU-protected CTCL lesional specimens vs BCNU-treated lesional specimens at 24 hours, using immunohistochemical staining for Ki-67, PCNA, bcl-2, and caspase-3, as well as y2HAX and TUNEL assays. The proliferation rate will be calculated from these results. at 24 hours after the first infusion
Secondary Changes in the Cell Cycle/Proliferation Comparing skin biopsy specimens of BCNU-protected CTCL lesional specimens vs BCNU-treated lesional specimens at 48 hours, using immunohistochemical staining for Ki-67, PCNA, bcl-2, and caspase-3, as well as y2HAX and TUNEL assays. The proliferation rate will be calculated from these results. at 48 hours after the first infusion
Secondary Changes in DNA Damage- Cytotoxicity Immunohistochemistry will be used to assess expression of these proteins in keratinocytes, epidermal lymphocytes, and dermal lymphocytes, to determine the effects of BCNU cytotoxicity in each subpopulation of cells 24 hours after the first infusion
Secondary Changes in DNA Damage- Cytotoxicity Immunohistochemistry will be used to assess expression of these proteins in keratinocytes, epidermal lymphocytes, and dermal lymphocytes, to determine the effects of BCNU cytotoxicity in each subpopulation of cells 48 hours after the first infusion
Secondary Changes in AGT Inactivation in Non-responding Patients Changes in AGT levels will be determined by biochemical activity assay from first course to seventh course of treatment. After first course at 2 weeks
Secondary Changes in AGT Inactivation in Non-responding Patients Changes in AGT levels will be determined by biochemical activity assay from first course to seventh course of treatment. After seventh course at 14 weeks
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