Unspecified Adult Solid Tumor, Protocol SpecificPhase 1NCT00002604
O(6)-Benzylguanine and Carmustine in Treating Patients With Solid Tumors
A Phase 1 study testing O6-benzylguanine, carmustine and chemosensitization/potentiation therapy in people with Unspecified Adult Solid Tumor, Protocol Specific, run by Case Comprehensive Cancer Center at 2 sites in United States.
Trial 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 I trial to study the effectiveness of O(6)-benzylguanine and carmustine in treating patients who have solid tumors. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Unspecified Adult Solid Tumor, Protocol Specific
- What is being tested?
- O6-benzylguanine, carmustine and chemosensitization/potentiation therapy
- Type of treatment
- Injection or infusion
- How many people
- 28 participants
- Where
- 2 sitesUnited States
- Study dates
- Jan 1996to Feb 2004
- Phase
- Phase 1
- 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 solid tumor for which no standard treatment exists (including surgery, radiotherapy, or systemic agents) No primary CNS malignancy No CNS metastases Only disease that can be sequentially biopsied is eligible for determination of the biochemical modulating dose that decreases AGT in tumor tissue
PATIENT CHARACTERISTICS: Age: Over 18 Performance status: ECOG 0-2 Hematopoietic: WBC greater than 4,000/mm3 Absolute neutrophil count greater than 2,000/mm3 Platelet count greater than 100,000/mm3 Hepatic: Bilirubin less than 1.5 mg/dL AST less than 3 times normal Prothrombin time less than upper limit of normal Renal: Creatinine no greater than 1.5 mg/dL OR Creatinine clearance at least 60 mL/min Calcium normal Electrolytes normal Other: Diabetes controlled by diet or insulin allowed Not pregnant Fertile patients must use effective contraception during and for 2 months after study
PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: At least 4 weeks since chemotherapy (6 weeks since mitomycin) and recovered No prior nitrosoureas Endocrine therapy: Not specified Radiotherapy: See Disease Characteristics Surgery: Not specified
Trial locations and contacts
2 sites in 1 country.
United States2 sites
Ireland Cancer Center at University Hospitals Case Medical Center, Case Comprehensive Cancer Center
Cleveland, Ohio, 44106-5065
Veterans Affairs Medical Center - Cleveland
Cleveland, Ohio, 44106
About this study
Official title: Phase I Trial of O6 Benzylguanine and BCNU; A Biochemical Modulation Trial Based Upon Depletion of O6 Alkylguanine DNA Alkyltransferase Directed DNA Repair
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 I trial to study the effectiveness of O(6)-benzylguanine and carmustine in treating patients who have solid tumors.
Read the detailed description
OBJECTIVES: I. Determine the biochemical modulation dose l of O6-benzylguanine (BG), defined as the dose at which baseline O6-alkylguanine DNA alkyltransferase (AGT) activity in circulating peripheral blood mononuclear cells (PBMC) decreases by greater than 90% in patients with advanced solid tumors at 2 hours after BG infusion. II. Determine the biochemical modulation dose t/18 (BMDt/18) of BG, defined as the dose at which AGT activity in human metastatic tumor tissue decreases to undetectable levels at 18 hours after BG infusion. III. Determine the maximum tolerated dose of carmustine (BCNU) when administered with BG at the BMDt/18 in these patients. IV. Determine the toxicities of BG and BCNU in these patients. V. Determine the pharmacokinetic parameters of BG administered at the BMDt/18, and determine any effects of BCNU on BG pharmacokinetics. VI. Assess any antitumor response in patients with metastatic solid tumors treated with this regimen. VII. Determine the effect of lower, more frequent bolus doses or a continuous infusion of BG on the depletion of AGT activity in PBMC and tumor tissue in these patients. VIII. Determine the pharmacokinetics of BG in lower, more frequent bolus doses or continuous infusion.
OUTLINE: This is a dose escalation study of 06-benzylguanine (BG) and carmustine (BCNU). Patients receive BG IV over 1 hour during week 1, and then BG IV over 1 hour followed 1 hour later by BCNU IV over 1 hour during week 3. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 1-3 patients receive escalating doses of BG until the biochemical modulation dose l (BMDl) is determined. The BMDl is defined as the dose at which baseline O6-alkylguanine DNA alkyltransferase (AGT) activity in circulating peripheral blood mononuclear cells decreases by greater than 90% at 2 hours after BG infusion. Cohorts of 3 patients receive escalating doses of BG beginning at the BMDl until the biochemical modulation dose t/2 (BMDt/2) is determined. The BMDt/2 is defined as the dose at which AGT activity in human metastatic tumor tissue decreases by greater than 90% at 2 hours after BG infusion. Cohorts of 3 patients receive escalating doses of BG beginning at the BMDt/2 until the biochemical modulation dose t/18 (BMDt/18) is determined. The BMDt/18 is defined as the dose at which AGT activity in human metastatic tumor tissue decreases to undetectable levels at 18 hours after BG infusion. Patients then receive BG IV over 1 hour followed 1 hour later by BCNU IV over 1 hour during week 1. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of BCNU combined with BG at the BMDt/18 until the maximum tolerated dose (MTD) of BCNU is determined. The MTD of BCNU is defined as the dose preceding that at which 2 or more of 6 patients experience dose limiting toxicity. A cohort of 3 patients receives BG IV over 2 minutes and another cohort of 3 patients receives BG IV over 24 hours. An additional cohort of 6 patients receives BG IV over 24 hours and BCNU IV over 1 hour beginning 2 hours into BG infusion during week 3.
PROJECTED ACCRUAL: A total of 51 patients will be accrued for this study over 36 months.
- Being tested
- O6-benzylguanine, carmustine, chemosensitization/potentiation therapy
- Keywords
- unspecified adult solid tumor, protocol specific
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
O6-benzylguanineDrug
Patients receive BG IV over 1 hour during week 1, and then BG IV over 1 hour during week 3. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity.
carmustineDrug
Also called BCNU
After one hour of receiving BG patients receive BCNU IV over 1 hour during week 3. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity.
chemosensitization/potentiation therapyDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
dose escalation study of 06-benzylguanine (BG) and carmustine (BCNU)
Measured: Courses (each course is 3 weeks) repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 1-3 patients receive escalating doses of BG until the biochemical modulation dose l (BMDl) is determined.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Jul 2004 (estimated)
- Study startJan 1996
- Primary completionJul 2000
- Study completionFeb 2004
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Unspecified Adult Solid Tumor, Protocol SpecificStudies of the same condition, open and under way.
- More trials run by Case Comprehensive Cancer CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 28 participants (actual)
Sponsor and investigators
- Lead sponsor
- Case Comprehensive Cancer Center
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Investigators
- James KV Willson, MD, Study chair, Ireland Cancer Center at University Hospitals Case Medical Center, Case Comprehensive Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00002604
- Sponsor's protocol ID
- CWRU1994
- Other IDs
- U01CA062502, CWRU-ICC-1994, NCI-T94-0022D
- Status last verified
- Jul 2010
- First submitted
- 1 Nov 1999
- Last updated
- 8 Jul 2010
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 8 Jul 2010. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase I Trial of O6 Benzylguanine and BCNU; A Biochemical Modulation Trial Based Upon Depletion of O6 Alkylguanine DNA Alkyltransferase Directed DNA Repair
- ClinicalTrials.gov ID
- NCT00002604
- Acronym / sponsor ID
- CWRU1994
- Keywords
- unspecified adult solid tumor, protocol specific
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 28 participants (actual)
- Lead sponsor
- Case Comprehensive Cancer CenterUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Jan 1996
- Primary completion
- Jul 2000 (actual)
- Study completion
- Feb 2004 (actual)
- First posted
- 29 Jul 2004 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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 I trial to study the effectiveness of O(6)-benzylguanine and carmustine in treating patients who have solid tumors.
Detailed description
OBJECTIVES: I. Determine the biochemical modulation dose l of O6-benzylguanine (BG), defined as the dose at which baseline O6-alkylguanine DNA alkyltransferase (AGT) activity in circulating peripheral blood mononuclear cells (PBMC) decreases by greater than 90% in patients with advanced solid tumors at 2 hours after BG infusion. II. Determine the biochemical modulation dose t/18 (BMDt/18) of BG, defined as the dose at which AGT activity in human metastatic tumor tissue decreases to undetectable levels at 18 hours after BG infusion. III. Determine the maximum tolerated dose of carmustine (BCNU) when administered with BG at the BMDt/18 in these patients. IV. Determine the toxicities of BG and BCNU in these patients. V. Determine the pharmacokinetic parameters of BG administered at the BMDt/18, and determine any effects of BCNU on BG pharmacokinetics. VI. Assess any antitumor response in patients with metastatic solid tumors treated with this regimen. VII. Determine the effect of lower, more frequent bolus doses or a continuous infusion of BG on the depletion of AGT activity in PBMC and tumor tissue in these patients. VIII. Determine the pharmacokinetics of BG in lower, more frequent bolus doses or continuous infusion.
OUTLINE: This is a dose escalation study of 06-benzylguanine (BG) and carmustine (BCNU). Patients receive BG IV over 1 hour during week 1, and then BG IV over 1 hour followed 1 hour later by BCNU IV over 1 hour during week 3. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 1-3 patients receive escalating doses of BG until the biochemical modulation dose l (BMDl) is determined. The BMDl is defined as the dose at which baseline O6-alkylguanine DNA alkyltransferase (AGT) activity in circulating peripheral blood mononuclear cells decreases by greater than 90% at 2 hours after BG infusion. Cohorts of 3 patients receive escalating doses of BG beginning at the BMDl until the biochemical modulation dose t/2 (BMDt/2) is determined. The BMDt/2 is defined as the dose at which AGT activity in human metastatic tumor tissue decreases by greater than 90% at 2 hours after BG infusion. Cohorts of 3 patients receive escalating doses of BG beginning at the BMDt/2 until the biochemical modulation dose t/18 (BMDt/18) is determined. The BMDt/18 is defined as the dose at which AGT activity in human metastatic tumor tissue decreases to undetectable levels at 18 hours after BG infusion. Patients then receive BG IV over 1 hour followed 1 hour later by BCNU IV over 1 hour during week 1. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of BCNU combined with BG at the BMDt/18 until the maximum tolerated dose (MTD) of BCNU is determined. The MTD of BCNU is defined as the dose preceding that at which 2 or more of 6 patients experience dose limiting toxicity. A cohort of 3 patients receives BG IV over 2 minutes and another cohort of 3 patients receives BG IV over 24 hours. An additional cohort of 6 patients receives BG IV over 24 hours and BCNU IV over 1 hour beginning 2 hours into BG infusion during week 3.
PROJECTED ACCRUAL: A total of 51 patients will be accrued for this study over 36 months.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| O6-benzylguaninePatients receive BG IV over 1 hour during week 1, and then BG IV over 1 hour during week 3. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. | Drug | – |
| carmustineAlso: BCNUAfter one hour of receiving BG patients receive BCNU IV over 1 hour during week 3. Courses repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. | Drug | – |
| chemosensitization/potentiation therapy | Drug | – |
Primary outcome
dose escalation study of 06-benzylguanine (BG) and carmustine (BCNU)
Time frame: Courses (each course is 3 weeks) repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 1-3 patients receive escalating doses of BG until the biochemical modulation dose l (BMDl) is determined.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jul 2010.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
James KV Willson, MD study chair
Ireland Cancer Center at University Hospitals Case Medical Center, Case Comprehensive Cancer Center
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing O6-benzylguanine, carmustine and chemosensitization/potentiation therapy in people with Unspecified Adult Solid Tumor, Protocol Specific, run by Case Comprehensive Cancer Center at 2 sites 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?
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 8 Jul 2010. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
dose escalation study of 06-benzylguanine (BG) and carmustine (BCNU) (time frame: Courses (each course is 3 weeks) repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Cohorts of 1-3 patients receive escalating doses of BG until the biochemical modulation dose l (BMDl) is determined.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 8 Jul 2010.