This open-label, randomized, parallel arm study assessed the efficacy and safety of Tarceva (erlotinib) versus gemcitabine/cisplatin combination chemotherapy as first-line treatment in patients with stage IIIB/IV non-small cell lung cancer with epidermal growth factor receptor (EGFR) mutations in their tumours. Patients were randomized to receive either Tarceva 150 mg orally daily or 3-week cycles of gemcitabine 1250 mg/m\^2 intravenously (iv) on Days 1 and 8 plus cisplatin 75 mg/m\^2 iv on Day 1.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
217
Erlotinib was supplied as tablets.
Cisplatin and gemcitabine were locally sourced with commercial products.
Unnamed facility
Beijing, China
Unnamed facility
Beijing, China
Unnamed facility
Changchun, China
Unnamed facility
Chongqing, China
Unnamed facility
Chongqing, China
Unnamed facility
Fuzhou, China
Unnamed facility
Guangzhou, China
Unnamed facility
Hangzhou, China
Unnamed facility
Nanjing, China
Unnamed facility
Shanghai, China
...and 18 more locations
Investigator-assessed Duration of Progression-free Survival
The duration of progression-free survival was defined as the time from randomization to disease progression (PD) or death from any cause, whichever occurs first. PD was defined as: (1) At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this may include the baseline sum). The sum must also demonstrate an absolute increase of at least 5 mm. (2) An unequivocal progression of existing non-target lesions. When the patient has measurable disease, the overall tumor burden must have increased sufficiently to merit discontinuation of therapy. When the patient has only non-measurable disease, the increase in overall disease burden should be comparable in magnitude to the increase that would be required to declare PD for measurable disease. (3) The appearance of new malignant lesions.
Time frame: Baseline to the data cut-off date of 20 Jul 2012 (1 year, 4 months)
Percentage of Responders as Assessed by the Investigator
A responder was defined as a participant with either a complete response (CR) or a partial response (PR), as determined using the Response Evaluation Criteria In Solid Tumors (RECIST) v1.1. A CR was defined as: (1) The disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \< 10 mm. (2) The disappearance of all non-target lesions and normalization of tumor marker levels. All lymph nodes must be non-pathological in size (\< 10 mm in the short axis). A PR was defined as: (1) At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. (2) The persistence of 1 or more non-target lesion(s) and/or maintenance of tumor marker levels above normal limits.
Time frame: Baseline to the data cut-off date of 19 Nov 2012 (1 year, 8 months)
Percentage of Participants With Disease Control
A participant with disease control was defined as a participant with either a complete response (CR), a partial response (PR), or stable disease (SD), as determined using RECIST v1.1. A CR was defined as the disappearance of all target lesions (TL). A PR was defined as at least a 30% decrease in the sum of the longest diameter of TLs taking as reference the Baseline sum longest diameter (SLD). SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD), taking as reference the smallest SLD since treatment started. For non-TLs, SD was defined as the persistence of 1 or more lesions. PD was defined as at least a 20% increase in the SLD of TLs, taking as reference the smallest SLD recorded since treatment started or the unequivocal progression of existing non-TLs. A SLD for all TLs will be calculated and reported as the Baseline SLD.
Time frame: Baseline to the data cut-off date of 19 Nov 2012 (1 year, 8 months)
Duration of Response
Duration of response was defined as the time from the first documented complete response (CR) or partial response (PR) to the first documented disease progression (PD) or death, whichever occurs first. A CR was defined as the disappearance of all target lesions (TL). A PR was defined as at least a 30% decrease in the sum of the longest diameter (SLD) of TLs taking as reference the Baseline SLD. PD was defined as at least a 20% increase in the SLD of TLs, taking as reference the smallest SLD recorded since treatment started or the unequivocal progression of existing non-TLs.
Time frame: Baseline to the data cut-off date of 19 Nov 2012 (1 year, 8 months)
Overall Survival
Overall survival was defined as the time from the date of randomization to the date of death from any cause.
Time frame: Baseline to the end of the study (3 years, 1 month)
Safety: Incidence of Adverse Events
Time frame: 36 months
Quality of Life: Functional Assessment of Chronic Illness Therapy - Lung (FACIT-L) Questionnaire
Time frame: approximately 21 months
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