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Carboxyamidotriazole + RT in Treating Patients Newly Diagnosed Supratentorial GBM

Phase II Clinical and Pharmacologic Study of Radiation Therapy and CAI (Carboxy-Amido Triazole) in Adults With Newly Diagnosed Glioblastoma Multiforme

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00004146
Enrollment
55
Registered
2004-06-04
Start date
2000-03-31
Completion date
2010-01-31
Last updated
2015-05-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adult Giant Cell Glioblastoma, Adult Glioblastoma, Adult Gliosarcoma

Brief summary

Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells. Combining radiation therapy with chemotherapy may kill more tumor cells. Phase II trial to study the effectiveness of carboxyamidotriazole plus radiation therapy in treating patients who have newly diagnosed supratentorial glioblastoma multiforme.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate overall survival rate in patients administered CAI (carboxyamidotriazole) and radiation therapy to adults with newly diagnosed glioblastoma multiforme. II. To determine the toxicity of CAI when combined with cranial irradiation. III. To estimate correlations between pharmacokinetic parameters, including steady state CAI concentration, with toxicity and/or drug activity in this patient population. IV. To estimate duration of disease free progression with this treatment regime. OUTLINE: This is a multicenter study. Patients receive induction therapy consisting of radiotherapy once daily 5 days a week plus oral carboxyamidotriazole once daily for 6 weeks followed by carboxyamidotriazole alone daily for 4 weeks. Patients continue on oral carboxyamidotriazole once daily as maintenance therapy in the absence of disease progression or unacceptable toxicity. Patients are followed monthly for survival. PROJECTED ACCRUAL: A total of 54 patients will be accrued for this study over 1.5 years.

Interventions

RADIATIONradiation therapy

Undergo radiotherapy

Given orally

OTHERpharmacological study

Correlative studies

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have histologically confirmed supratentorial grade IV astrocytoma (glioblastoma multiforme) * Patients must have measurable or non-measurable tumor on the post operative, pretreatment MRI/CT scan (within two weeks of starting treatment) * Patients must not have received prior radiation therapy, chemotherapy, hormonal therapy, immunotherapy or therapy with biologic agents (including immunotoxins, immunoconjugates, antisense, peptide receptor antagonists, interferons, interleukins, TIL, LAK or gene therapy), or hormonal therapy for their brain tumor; glucocorticoid therapy is allowed * Patients must have recovered from the immediate post-operative period and be maintained on a stable steroid regimen (no increase for the last five days) * Absolute neutrophil count \>= 1500/mm\^3 * Platelets \>= 100,000/mm\^3 * Hemoglobin concentration \>= 9.0 g/dl * Creatinine =\< 1.7mg/dL * Total bilirubin =\< 1.2 mg/dl * Transaminases =\< 2 times above the upper limits of the institutional normal * Estimated life expectancy greater than 2 months * Patients must give informed consent and understand the investigational nature of this study and its potential risks and benefits * Patients, if female and of childbearing potential must have a negative serum beta-hCG test and must not be breast feeding; all patients with the potential for pregnancy should be counseled and requested to follow acceptable birth control methods to avoid conception * Patients must have a Karnofsky performance status of \>= 60% * No other serious concurrent infection or other medical illness should be present which would jeopardize the ability of the patient to receive the drug outlined in this protocol with reasonable safety * Patients must have no concurrent malignancy except curatively treated basal or squamous cell carcinoma of the skin or carcinoma in situ; patients with prior malignancies must be disease-free for \>= five years

Exclusion criteria

* Patients must be able to comply with prescribed medical care * Prior therapy for the brain tumor (except surgery) * Prior treatment with antineoplastic agents, including CAI

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival Rateapproximately 30 monthsestimated period of time event assessed 30 months. event assessed from time of histological diagnosis to death
Toxicity of CAI When Combined With RTpts were reviewed for toxicity while on treatement - median time of 2 monthspatients who experienced a grade 3 or higher event considered at least possibly related to CAI
Correlation Between PK CAI and Toxicity in This pt Populationduring treatmentPK paramenters including steady state CAI concentrations with toxicity/or drug activity

Countries

United States

Participant flow

Recruitment details

Between March and October of 2000 55 patients(pts) were accrued from outpatient clinics throughout ABTC(Adult Brain Tumor Consortium) consortium clinics

Pre-assignment details

pts had to have confirmed GBM (Glioblastoma) and be untreated except for biopsy or surgery and corticosteroids.

Participants by arm

ArmCount
CAI With RT - Arm 1
CAI with RT carboxyamidotriazole : CAI : CAI 250 mg PO plus RT followed by 4wks CAI alone followed by 8wks CAI then MRI if stable or better continue until progression and then follow for survival radiation therapy :
55
Total55

Baseline characteristics

CharacteristicCAI With RT - Arm 1
Age, Customized59 years
Karnofsky Performance Status
Performance Status 100
9 participants
Karnofsky Performance Status
Performance Status 60
2 participants
Karnofsky Performance Status
Performance Status 70
10 participants
Karnofsky Performance Status
Performance Status 80
10 participants
Karnofsky Performance Status
Performance Status 90
24 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
54 Participants
Sex: Female, Male
Female
22 Participants
Sex: Female, Male
Male
33 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
9 / 55
serious
Total, serious adverse events
7 / 55

Outcome results

Primary

Correlation Between PK CAI and Toxicity in This pt Population

PK paramenters including steady state CAI concentrations with toxicity/or drug activity

Time frame: during treatment

Population: 50 subjects had PK samples for analysis

ArmMeasureValue (MEAN)Dispersion
CAI With RT - Arm 1Correlation Between PK CAI and Toxicity in This pt Population1.3 ug/mlStandard Deviation 1.22
CAI With RT Without Enzyme Inducing AnticonvulsantsCorrelation Between PK CAI and Toxicity in This pt Population4.06 ug/mlStandard Deviation 1.5
Primary

Overall Survival Rate

estimated period of time event assessed 30 months. event assessed from time of histological diagnosis to death

Time frame: approximately 30 months

Population: intent to treat pt population. time from histological diagnosis to death.

ArmMeasureValue (MEDIAN)
CAI With RT - Arm 1Overall Survival Rate10.3 months
Comparison: the study design is to detect 30% reduction in hazard of deaths with 78% power at one side alpha level of 0.10. Overall survial time was calculated from time of histological diagnosis until time of death from any event.p-value: 0.195% CI: [0.65, 1.12]t-test, 1 sided
Primary

Toxicity of CAI When Combined With RT

patients who experienced a grade 3 or higher event considered at least possibly related to CAI

Time frame: pts were reviewed for toxicity while on treatement - median time of 2 months

Population: pts were treated for a median time of 2 months (23 days to 46 months). patients who experienced a grade 3 or higher event considered at least possibly related to CAI

ArmMeasureValue (NUMBER)
CAI With RT - Arm 1Toxicity of CAI When Combined With RT16 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026