- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00471835
Stereotactic Body Radiation Therapy in Treating Patients With Stage I or Stage II Non-Small Cell Lung Cancer
A Phase I/II Study of Hypofractionated Stereotactic Body Radiotherapy for Stage I/II Non-small Cell Lung Cancer Within the Central Lung Region and the Prognostic Impact of FDG Positron Emission Tomography
RATIONALE: Stereotactic body radiation therapy may be able to send x-rays directly to the tumor and cause less damage to normal tissue.
PURPOSE: This phase I/II trial is studying the side effects and best dose of stereotactic body radiation therapy and to see how well it works in treating patients with stage I or stage II non-small cell lung cancer.
Panoramica dello studio
Stato
Condizioni
Descrizione dettagliata
OBJECTIVES:
Primary
- Determine the maximum tolerated dose of hypofractionated stereotactic body radiotherapy (SBRT) to the central lung region (peri-mediastinum) in patients with stage I or II non-small cell lung cancer. (Phase I)
- Determine local control and time to local progression in patients treated with this regimen. (Phase II)
- Evaluate the ability of peak standardized uptake values (SUV) for fludeoxyglucose F 18 (FDG)-PET scan, obtained shortly after SBRT (post-treatment), to predict local control and time to progression in these patients.
Secondary
- Evaluate the ability of maximum SUV for FDG-PET scan, obtained shortly after SBRT, to predict long-term local control and time to progression in these patients.
- Evaluate the ability of peak SUV and max SUV for FDG-PET scan, obtained prior to SBRT, to predict local control and time to progression in these patients.
- Determine the utility of PET/CT scan data in guiding treatment planning.
- Determine if treatment with radiotherapy involving high biological doses with limited treatment volume using these SBRT techniques achieves acceptable treatment-related toxicity.
OUTLINE: This is a phase I dose-escalation study followed by a phase II open-label study.
- Phase I: Patients undergo hypofractionated stereotactic body radiotherapy (SBRT) 3 times within a 2-week time frame.
Cohorts of 3-6 patients receive escalating doses of hypofractionated SBRT until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity.
- Phase II: Patients undergo hypofractionated SBRT at the MTD as in phase I. In both phases, patients undergo fludeoxyglucose F 18-PET/CT scans at baseline and at 12-16 weeks after completion of SBRT.
After completion of study treatment, patients are followed periodically for 4 years.
PROJECTED ACCRUAL: A total of 90 patients will be accrued for this study.
Tipo di studio
Fase
- Fase 2
- Fase 1
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
DISEASE CHARACTERISTICS:
Histologically or cytologically confirmed stage I or II non-small cell lung cancer meeting the following criteria:
- No bronchoalveolar cell carcinoma
Maximum T2 or T3 tumor size ≤ 5 cm
- T3 primary tumor must be limited to chest wall
Primary tumor of any T stage must be within or touching the zone of the trachea or proximal bronchial tree, defined as a volume of 2 cm in all directions around the trachea and proximal bronchial tree (carina, right and left main bronchi, right and left upper lobe bronchi, intermedius bronchi, right middle lobe bronchus, right and left lower lobe bronchi)
- For lesions inferior to the proximal bronchial tree, the primary tumor must be within 2 cm of the esophagus
- Patients with N1 (hilar) lymph nodes positive for malignancy based on size, fludeoxyglucose F 18 (FDG)-PET scan uptake, or biopsy are eligible if the N1 lymph nodes are located such that they are contiguously within the same stereotactic radiation treatment field as the primary tumor
Mediastinal lymph nodes must be ≤ 1 cm and no abnormal uptake on FDG-PET scan in those areas
- Patients with > 1 cm lymph nodes or abnormal FDG-PET scan (including suspicious but non-diagnostic uptake) are eligible if directed tissue biopsy of all abnormally identified areas are negative for cancer
No evidence of distant metastases
Suspected M1 disease based on pre-treatment PET imaging must be biopsied
- If the biopsy is positive, the patient is ineligible
- If the biopsy is negative and representative of the lesion in question, the patient is eligible
If the biopsy is non-diagnostic, consideration should be given to repeat biopsy
- If the repeat biopsy remains non-diagnostic or a biopsy is not feasible, then the patient is ineligible
Technically resectable disease
- Surgery refused or patient deemed medically inoperable due to co-morbid conditions
PATIENT CHARACTERISTICS:
- Zubrod performance status 0-2
- Not pregnant or nursing
- Negative pregnancy test
- Fertile patients must use effective contraception
- No synchronous primary or invasive malignancy within the past 2 years other than non-melanomatous skin cancer
- No active systemic, pulmonary, or pericardial infection
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
- No prior chest radiotherapy (lung or mediastinum)
- No other concurrent anticancer therapy, including other radiotherapy, radiofrequency ablation (or other antineoplastic interventional radiology techniques), chemotherapy, biological therapy, vaccine therapy, or surgery
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Mascheramento: Nessuno (etichetta aperta)
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
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Dose massima tollerata (Fase I)
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Time to progression and local control at 1 and 2 years (Phase II)
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Misure di risultato secondarie
Misura del risultato |
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Tossicità
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Rate of acute and late treatment-related toxicity related to specific symptoms, including gastrointestinal, cardiac, neurologic, hemorrhagic, and pulmonary symptoms
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Patterns of failure and overall survival at 2 years
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Measurement of pre-treatment and post-treatment PET scan standardized uptake values and correlation of this data with local control at 1 and 2 years
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Collaboratori e investigatori
Collaboratori
Studiare le date dei record
Studia le date principali
Inizio studio
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- CCCWFU-62206
- CDR0000543743 (Identificatore di registro: PDQ (Physician Data Query))
- CCCWFU-IRB00000578
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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