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Temozolomide and Radiation Therapy in Treating Patients With Brain Metastasis Secondary to Non-Small Cell Lung Cancer

A Phase II Study of Temozolomide and Radiation Therapy in Patients With Brain Metastasis From Non-small Cell Lung Cancer (NSCLC)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00080938
Enrollment
26
Registered
2004-04-08
Start date
2005-12-20
Completion date
2009-02-28
Last updated
2023-06-29

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

Conditions

Lung Cancer, Metastatic Cancer

Keywords

recurrent non-small cell lung cancer, stage IV non-small cell lung cancer, squamous cell lung cancer, adenocarcinoma of the lung, large cell lung cancer, bronchoalveolar cell lung cancer, adenosquamous cell lung cancer, tumors metastatic to brain

Brief summary

RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs such as temozolomide may make the tumor cells more sensitive to radiation therapy. Combining temozolomide with radiation therapy may kill more tumor cells. PURPOSE: This phase II trial is studying how well giving temozolomide together with whole-brain radiation therapy works in treating patients with brain metastasis secondary to non-small cell lung cancer.

Detailed description

OBJECTIVES: Primary * Determine the intracranial response rate in patients with brain metastasis secondary to non-small cell lung cancer treated with whole brain radiotherapy and temozolomide. Secondary * Determine the time to radiological progression in patients treated with this regimen. * Determine the time to neurological progression (confirmed by magnetic resonance imaging (MRI)) in patients treated with this regimen. * Determine the overall survival of patients treated with this regimen. * Determine the toxicity of this regimen in these patients. OUTLINE: This is a multicenter study. Patients undergo whole brain radiotherapy once daily, 5 days a week, for 2 weeks (10 fractions). Patients also receive concurrent oral temozolomide once daily on days 1-14. Beginning 3 weeks after the completion of chemoradiotherapy, patients receive oral temozolomide once daily on days 1-5. Treatment repeats every 28 days for up to 6 courses in the absence of neurologic (Central Nervous System, CNS) progression or unacceptable toxicity. Patients were followed every 3 months for 2 years. ACCRUAL: A total of 26 patients were accrued for this study.

Interventions

DRUGTemozolomide

Temozolomide (TMZ) to be given at a dose of 75 mg/m2/day for 14 days, starting on D1 of whole brain radiotherapy (WBRT). Three weeks after completion of WBRT, TMZ will be given at a dose of 200 mg/m2/day x 5 days (or 150 mg/m2/day if prior chemotherapy) every 28-days,for an additional two cycles.

RADIATIONRadiation therapy

Standard whole brain radiation therapy 30 Gy in ten fractions.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Eastern Cooperative Oncology Group
Lead SponsorNETWORK

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

* Histologically confirmed non-small cell lung cancer (NSCLC), including the following histologies: * Squamous cell carcinoma * Adenocarcinoma * Large cell carcinoma * Bronchoalveolar carcinoma * All variants of NSCLC * At least 1 bidimensionally measurable brain metastasis * Confirmed by MRI within the past two weeks, and computed tomography (CT) scan is not acceptable * Biopsy is not required * Not eligible for surgical resection or radiosurgery of brain metastasis * Systemic disease not in immediate need of chemotherapy * Age\>=18 years * ECOG Performance status of 0-1 * More than 12 weeks of life expectancy * Adequate hematologic, renal, and liver function as demonstrated by laboratory values performed within two weeks, inclusive, prior to administration of study drug or registration * Absolute neutrophil count ≥ 1,500/mm\^3 * Platelet count ≥ 100,000/mm\^3 * Hemoglobin ≥ 10 g/dL * Bilirubin ≤ 2 times upper limit of normal (ULN) * Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) ≤ 2 times upper limit of normal (5 times ULN if liver metastases are present) * Alkaline phosphatase ≤ 2 times ULN (5 times ULN if liver metastases are present) * Creatinine ≤ 1.6 mg/dL * Fertile patients must use effective contraception * Prior biologic therapy allowed * More than 4 weeks since prior chemotherapy * Prior radiotherapy for local control or palliative therapy for painful bony lesions allowed * Prior surgery for brain metastasis allowed * At least 4 weeks since prior radiotherapy to ≥ 15% of bone marrow (2 weeks for \< 15% of bone marrow) and recovered * No prior radiotherapy to ≥ 50% of bone marrow * Concurrent radiotherapy to painful bony lesions allowed provided no more than 15% of bone marrow is irradiated

Exclusion criteria

* HIV positive * AIDS-related illness * Poor medical risks due to active nonmalignant systemic disease * Frequent vomiting * There is medical condition that would interfere with oral medication intake (e.g., partial bowel obstruction) * Pregnant or nursing * Prior temozolomide * Prior radiotherapy to the brain, including stereotactic radiosurgery to a different lesion * Concurrent intensity modulated radiotherapy or 3-D cranial radiotherapy * Other concurrent investigational agents * Other concurrent treatment for brain metastasis * Other concurrent chemotherapy during study radiotherapy * Concurrent growth factors to induce elevations in blood counts for the purposes of administration of study drug at scheduled dosing interval or to allow treatment with study drug at a higher dose

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients With Intracranial Responseassessed every cycle while on treatment, then every 3 months for 2 yearsResponse was assessed per Response Evaluation Criteria in Solid Tumor (RECIST) by brain MRI in the 21 eligible and treated patients.Complete response (CR): complete disappearance of the clinically detectable malignant brain metastasis(es) being followed on MRI scan off corticosteroids and a stable or improving neurologic exam. Partial response (PR): greater than or equal to a 50% reduction in the sum of the product(s) of the maximal cross-sections on MRI scan with a stable or decreasing dose of corticosteroids and a stable or improving neurologic exam. Response = CR + PR

Secondary

MeasureTime frameDescription
1-year Neurologic (Central Nervous System, CNS) Progression Free Rateassessed every 3 months for 2 years1-year CNS progression free rate is the percentage of patients who had no CNS progression after being followed for 1 year . Progressive disease (CNS) was defined as a 25% or greater increase in the sum of the product(s) of the maximal cross-sections on MRI scan, reappearance of any lesion that has disappeared, development of any new lesion(s), stable disease with a deterioration of neurologic exam, or clear worsening of any evaluable disease.
Time to Non-CNS (Systemic) Progressionassessed every 3 months for 2 yearsTime to non-CNS progression was calculated from time of protocol entry to time of first systemic progressive disease or death. Patients alive and non-CNS progression-free at last follow-up were censored. Disease progression was defined as at least a 20% increase in the sum of the longest diameters of target lesions, taking as reference the baseline sum longest diameter (per RECIST criteria). Development of new lesions in non-CNS sites also constituted non-CNS progression. The 21 eligible and treated patients were included in the analysis.
Overall Survival Timeassessed every 3 months for 2 yearsOverall survival (months) was calculated from time of protocol entry to time of death from any cause. Patients alive at last follow-up were censored. The 21 eligible and treated patients were included in the analysis.

Participant flow

Recruitment details

Study Activated on 10/18/2005, accrued its first patient on 12/20/2005, terminated on 3/13/2007. Institutes include Mayo Clinic Rochester, Northwestern University, Wisconsin, University of, Stanford University, Lankenau Hospital,Toledo Community Hosp Onc Prog CCOP,Sanford Cancer Ctr-Oncology Clinic,Carle Cancer Center CCOP

Participants by arm

ArmCount
Temozolamide and Radiation
Patients were to receive whole brain radiation therapy (WBRT), 30 Gy in ten fractions, plus Temozolomide (TMZ) given at a dose of 75 mg/m2/day for 14 days starting on day 1 of radiotherapy. Three weeks after completion of WBRT, TMZ was to be given at a dose of 200 mg/m2/day x 5 days (or 150 mg/m2/day if prior chemotherapy) every 28 days for up to 6 cycles post WBRT (for a total of 7 cycles of protocol treatment).
21
Total21

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event3
Overall StudyDeath2
Overall StudyIneligible4
Overall StudyLack of Efficacy7
Overall StudyNot started protocol therapy1
Overall Studyother disease1
Overall StudyWithdrawal by Subject6

Baseline characteristics

CharacteristicTemozolamide and Radiation
Age, Continuous61 years
Region of Enrollment
United States
21 participants
Sex: Female, Male
Female
9 Participants
Sex: Female, Male
Male
12 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
21 / 25
serious
Total, serious adverse events
10 / 25

Outcome results

Primary

Number of Patients With Intracranial Response

Response was assessed per Response Evaluation Criteria in Solid Tumor (RECIST) by brain MRI in the 21 eligible and treated patients.Complete response (CR): complete disappearance of the clinically detectable malignant brain metastasis(es) being followed on MRI scan off corticosteroids and a stable or improving neurologic exam. Partial response (PR): greater than or equal to a 50% reduction in the sum of the product(s) of the maximal cross-sections on MRI scan with a stable or decreasing dose of corticosteroids and a stable or improving neurologic exam. Response = CR + PR

Time frame: assessed every cycle while on treatment, then every 3 months for 2 years

Population: Eligible and treated patients

ArmMeasureValue (NUMBER)
Temozolamide and RadiationNumber of Patients With Intracranial Response3 participants
Secondary

1-year Neurologic (Central Nervous System, CNS) Progression Free Rate

1-year CNS progression free rate is the percentage of patients who had no CNS progression after being followed for 1 year . Progressive disease (CNS) was defined as a 25% or greater increase in the sum of the product(s) of the maximal cross-sections on MRI scan, reappearance of any lesion that has disappeared, development of any new lesion(s), stable disease with a deterioration of neurologic exam, or clear worsening of any evaluable disease.

Time frame: assessed every 3 months for 2 years

Population: Eligible, treated patients

ArmMeasureValue (NUMBER)
Temozolamide and Radiation1-year Neurologic (Central Nervous System, CNS) Progression Free Rate90.5 percentage of participants
Secondary

Overall Survival Time

Overall survival (months) was calculated from time of protocol entry to time of death from any cause. Patients alive at last follow-up were censored. The 21 eligible and treated patients were included in the analysis.

Time frame: assessed every 3 months for 2 years

Population: Eligible and treated patients

ArmMeasureValue (MEDIAN)
Temozolamide and RadiationOverall Survival Time7 months
Secondary

Time to Non-CNS (Systemic) Progression

Time to non-CNS progression was calculated from time of protocol entry to time of first systemic progressive disease or death. Patients alive and non-CNS progression-free at last follow-up were censored. Disease progression was defined as at least a 20% increase in the sum of the longest diameters of target lesions, taking as reference the baseline sum longest diameter (per RECIST criteria). Development of new lesions in non-CNS sites also constituted non-CNS progression. The 21 eligible and treated patients were included in the analysis.

Time frame: assessed every 3 months for 2 years

Population: Eligible and treated patients

ArmMeasureValue (MEDIAN)
Temozolamide and RadiationTime to Non-CNS (Systemic) Progression3.2 months

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