Brief Title
Effect of Edaravone on Radiation-induced Temporal Lobe Necrosis
Official Title
Effect of Edaravone on Radiation-induced Temporal Lobe Necrosis in Patients With Nasopharyngeal Carcinoma After Radiotherapy
Brief Summary
It is hypothesized that excessive generation of free radicals involves in the pathogenesis of radiation-induced brain necrosis. This study therefore evaluated the effect of free radical scavenger, edaravone, on radiation-induced temporal lobe necrosis (TLN) in patients with nasopharyngeal carcinoma (NPC) after radiotherapy.
Detailed Description
Radiation-induced temporal lobe necrosis (TLN) is the most serious sequelae of radiotherapy and impairs the patients' quality of life profoundly. Steroid is one of the conventional treatment methods for TLN. However, its response rate was still not so satisfactory (about 30%-35%).The mechanism of TLN is under exploring and not completely understood. It has been proposed recently that chronic oxidative stress and inflammation involve in the pathogenesis of radiation-induced late normal tissue injury. Edaravone(3-methyl-1-phenyl-2-pyrazolin-5-one), which is proved to be an excellent free radical scavenger, has been applied to a wide range of oxidative stress-related diseases.Thus, it may exert a therapeutic effect on radiation-induced temporal lobe necrosis. To support this hypothesis, the investigators carried out a randomized study of combining edaravone with common fundamental management versus common fundamental therapy in patients with TLN, and analyzed the Late Effects of Normal Tissues -Subjective, Objective, Management, Analytic (LENT/SOMA) scale before and after treatment.
Study Phase
Phase 2
Study Type
Interventional
Primary Outcome
The change of the maximum area of the necrosis lesion on MRI three months after treatment
Secondary Outcome
The change in LENT/SOMA scale scores at three months after treatment from base line
Condition
Nasopharyngeal Carcinoma
Intervention
Edaravone
Study Arms / Comparison Groups
Edaravone group
Description: Edaravone was used at a dose of 30mg,intravenously, twice per day, for 14 days. All patients also received common fundamental management, which was as follows: ①Methylprednisolone, administered by intravenous infusion at a 500mg daily for 3 consecutive days and then gradually tailed off in 30 days with administration of oral prednisolone. ②Dehydration drugs.
Publications
* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.
Recruitment Information
Recruitment Status
Drug
Estimated Enrollment
154
Start Date
March 2009
Completion Date
September 2012
Primary Completion Date
October 2011
Eligibility Criteria
Inclusion Criteria: - ①Patients must have received radiation therapy for histologically confirmed nasopharyngeal carcinoma. - Prior irradiation >/= 6 months prior to study entry. - Radiographic evidence to support the diagnosis of radiation-induced temporal lobe necrosis without tumor recurrence(15). - Age>/= 18 years. - No evidence of very high intracranial pressure that suggests brain hernia and need surgery. - Fertile women who are willing to take contraception during the trial. - Routine laboratory studies with bilirubin =2 * upper limits of normal (ULN), aspartate aminotransferase (AST or SGOT) < 2 * ULN, creatinine <1.5 * ULN, red-cell count >/= 4,000 per cubic millimeter; white-cell count >/=1500 per cubic millimeter, platelets >/= 75,000 per cubic millimeter; Hb >/=9.0. prothrombin time(PT), activated partial thromboplastin time(APTT),international normalized ratio(INR) in a normal range. - Ability to understand and willingness to sign a written informed consent document. Exclusion Criteria: - ①Tumor recurrence or metastases. - Diseases of central nervous system, such as cerebral vascular events, inflammatory, degenerative disease, and significant cardiovascular diseases. - Severe systemic diseases. - History of anaphylactic response to edaravone.
Gender
All
Ages
18 Years - N/A
Accepts Healthy Volunteers
No
Contacts
Yamei Tang, M.D.,PhD., ,
Location Countries
China
Location Countries
China
Administrative Informations
NCT ID
NCT01865201
Organization ID
2009001
Responsible Party
Principal Investigator
Study Sponsor
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Study Sponsor
Yamei Tang, M.D.,PhD., Principal Investigator, Sun Yat-sen Memorial Hospital,Sun Yat-sen University
Verification Date
December 2013