Clinical trial NCT01933347: Third-line Treatment of Gefitinib in NSCLC Patients
Official title: Third-line Treatment of Gefitinib in NSCLC Patients Who Had Received First-line Gefitinib With EGFR 19del/L858R Mutation and Tumor Progression After the Second-line Chemotherapy: a Single-arm, Prospective and Multi-center Study
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Non Small Cell Lung Cancer
Lead sponsor: Guangdong Association of Clinical Trials
Sponsor class: OTHER
First posted: 2013-09-02
Enrollment: 46
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to evaluate the disease control rate (DCR) of gefitinib as third-line retreatment in stage IIIB/IV NSCLC with EGFR 19del/L858R positive mutation patients who had benefited from first-line gefitinib treatment with EGFR 19del/L858R positive mutation and tumor progression after the second-line chemotherapy

Detailed description: * Primary Study Objective: To evaluate the disease control rate (DCR) of gefitinib as third-line retreatment in stage IIIB/IV NSCLC with EGFR 19del/L858R positive mutation patients who had benefited from first-line gefitinib treatment with EGFR 19del/L858R positive mutation and tumor progression after the second-line chemotherapy
* Secondary Study Objectives: To evaluate objective response rate (ORR), progressive-free survival (PFS), overall survival(OS) and quality of life (QoL) of gefitinib as third-line retreatment in NSCLC patients To evaluate the safety of gefitinib as third-line treatment in NSCLC patients
* Exploratory analyses: To dynamically monitor EGFR mutation status and explore the relationship with clinical outcome

Eligibility criteria: Inclusion Criteria:

1. The subject or legal guardian could understand and sign informed consent form.
2. Male or female aged 18 years or older;
3. Subjects were diagnosed with stage IIIB or IV NSCLC before starting the first dose of gefitinib third-line treatment;
4. EGFR exon 19 deletion or exon 21 L858R substitution mutation confirmed;
5. ECOG performance status 0-2;
6. Life expectancy of at least 12 weeks or longer;
7. Has at least one measureable lesion by RECIST 1.1;
8. NSCLC of enrolled subjects previously progressed after first-line gefitinib treatment (PFS ≥ 6 months) and progressed again after second-line chemotherapy (not limited for chemotherapy regimen, ≥ 4 cycles of chemotherapy). Investigator considers adopting third-line gefitinib retreatment;
9. Criteria for laboratory examinations:

   * Total bilirubin (TB) ≤ 1.5 times upper limit of normal
   * Aspartate aminotransferase(AST), alanine aminotransferase (ALT) ≤2 times upper limit of normal; for subjects with hepatic metastasis, AST,ALT≤ 5 times upper limit of normal
   * Creatinine clearance≥45ml/min

Exclusion Criteria:

1. Known severe hypersensitivity to gefitinib or any ingredients of the product;
2. Patients with prior exposure to agents directed at the EGFR axis except gefitinib (e.g. erlotinib, cetuximab, trastuzumab) ;
3. Pre-existing interstitial lung disease or pulmonary fibrosis evidenced by CT scan at baseline;
4. Neutrophil count \<1.0×109/L or platelet count \<50×109/L;
5. Severe infection, uncontrolled systemic disease (e.g cardiopulmonary insufficiency, fatal arrhythmias, hepatitis, etc);
6. Pregnancy or breast-feeding;
7. Women of childbearing age refuse to take adequate contraception measures during gefitinib treatment
8. Subjects with other malignant tumors combined;
9. Known or suspected brain metastases or spinal cord compression, unless treated with surgery and/or radiation and stable without steroid treatment for at least 4 weeks prior to the first dose of study medication;
10. Subjects are unable to take medications orally or have digestive malabsorption;
11. Investigators consider subjects should not be involved in the study.

Primary outcomes:
measure: Disease Control Rate (DCR)
timeFrame: week 8
Secondary outcomes:
measure: objective response rate (ORR), progressive-free survival (PFS), overall survival(OS)
timeFrame: until the death of last subject or 2 years after enrollment
Other outcomes:
Locations:
city: Nanjing
country: China
facility: Nanjing General Hospital of Nanjing Military Command
state: Jiangsu
Study officials:
affiliation: Nanjing PLA General Hospital
name: Yong Song, Ph.D
role: PRINCIPAL_INVESTIGATOR
References: