Retreatment with pemetrexed-based chemotherapy in advanced nonsquamous NSCLC patients.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e19061-e19061
Author(s):  
Minglei Zhuo ◽  
Jie Wang ◽  
Tongtong An ◽  
Zhijie Wang ◽  
Jun Zhao ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Adverse Effects ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Bone Marrow Depression ◽  
Free Interval ◽  
Kaplan Meier ◽  
Nsclc Patients ◽  
Nonsquamous Nsclc

e19061^ Background: Retreatment of pemetrexed based chemotherapy (PBC) has been reported in MPM previously, but it is not investigated in non-squamous NSCLC (NS-NSCLC). Methods: We retrospectively enrolled 26 advanced NS-NSCLC patients who had received retreatment of PBC when their response to initial PBC were PR or SD. Chemotherapy regimens administered as retreatment were single pemetrexed (500 mg/m2every 3 weeks) or pemetrexed with a platinum. Response was evaluated according to RECIST. Toxicity was evaluated according to NCI-CTC version 3.0. PFS and OS were computed by Kaplan-Meier. Statistical analyses were performed with SPSS13.0. Results: In retreatment, most adverse effects (AE) were tolerable but doublet regimen was associated with higher AE including bone marrow depression and fatigue. In patients who received retreatment of PBC, objective response rate (ORR) and disease control rate (DCR) was 12% (3/26) and 73% (19/26) respectively. Patient with PFS≥10 months in initial PBC therapy would have a longer PFS in retreatment comparing with those PFS <10 months (6.0 vs 3.1 month, p = 0.004); patients with therapy-free interval (TFI) ≥6 months after initial PBC therapy also have a longer PFS in retreatment comparing with those interval <6 months (7.0 vs 3.0 month, p = 0.001). The OS also tend to be longer but not reach statistic significance. The response of first round PBC therapy (PR vs. SD) was not a factor affecting the PFS in retreatment. Conclusions: Patients with PFS over 10 months or TFI over 6 months after first round of PBC could benefit from retreatment of PBC.

Comparison of the IPSS and IPSS-R in Predicting Survival and Response of Myelodysplastic Syndrome Patients to 5-Azacitidine

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 5550-5550
Author(s):  
Roman M Shapiro ◽  
Alejandro Lazo-Langner
Keyword(s):  
High Risk ◽  
Risk Score ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Health Science ◽  
Survival Curves ◽  
Cytogenetic Data ◽  
Kaplan Meier ◽  
Very High

Background The international prognostic risk score (IPSS) is a validated tool in the prognosis of myelodysplastic syndromes (MDS). Patients who fall into the Int-2 and High categories of the IPSS qualify for treatment with 5-azacitidine, a hypomethylating agent that has been shown to provide a survival advantage with these prognostic risk scores. The IPSS was recently updated, with the newer revised IPSS (IPSS-R) risk score taking into account more cytogenetic data than the IPSS. It has not yet been determined whether the IPSS-R provides an advantage over the IPSS in predicting outcome with 5-azacitidine. The objective of this study was to reclassify a cohort of MDS patients at a single academic center using the IPSS-R, and to determine its ability to predict survival and response to 5-azacitidine. Methods This study was approved by the institutional board review. A total of 97 patients with a diagnosis of MDS were treated with 5-azacitidine at the London Health Science Center up until 2015. Both the IPSS and IPSS-R could be calculated for 77 patients. Kaplan-Meier survival curves were constructed for the patients categorized based on the IPSS and IPSS-R. The scores were also compared based on objective response rates (ORR = complete response + partial response + hematologic improvement) as defined by the IWG 2006 criteria that were determined for all patients. Results All 77 patients included in the study had qualified for 5-azacitidine treatment according to provincial criteria, and had an IPSS score int-2 or high. Upon reclassification using the IPSS-R, 2/77 patients were scored as low, 14/77 patients were scored as intermediate, 24/77 patients were scored as high, and 37/77 patients were scored as very high risk. Kaplan-Meier survival analysis (Figure 1) indicated there was no statistically significant difference between the IPSS-R intermediate, high, and very high survival curves (log-rank p = 0.774). The objective response rate for all 77 patients treated with 5-azacitidine was 23%, with ORR of 21% for IPSS-R intermediate, 17% for IPSS-R high, and 38% for IPSS-R very high. Conclusions The IPSS-R is an alternative prognostic risk scoring system that takes into account additional cytogenetic data compared to the IPSS. In our center the IPSS-R has not resulted in prognostic risk categories that are an improvement over the IPSS in predicting survival in response to 5-azacitidine. The IPSS-R very high risk patients had double the objective response rate to 5-azacitidine compared to the intermediate and high risk groups. Disclosures Lazo-Langner: Bayer: Honoraria; Pfizer: Honoraria; Daiichi Sankyo: Research Funding.

High Body Mass Index Was Related to Favorable Therapeutic Efficacy of Epidermal Growth Factor Receptor Targeted Therapy in Advanced Non-Small Cell Lung Cancer

2020 ◽  
Author(s):  
Yue-Yun Chen ◽  
Xu-De Yin ◽  
Ke Xie ◽  
Pei-Pei Wang ◽  
Yang Fu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Body Mass Index ◽  
Overall Survival ◽  
Targeted Therapy ◽  
Objective Response Rate ◽  
Advanced Nsclc ◽  
Response Rate ◽  
Objective Response ◽  
Training Group ◽  
Nsclc Patients

Abstract BackgroundIt’s widely accepted that Obesity is closely associated with the elevated risk of various cancers. However, there’s no consensus regarding the impact of body mass index (BMI) on the outcome of targeted therapy targeted-therapy efficacy in lung cancer. MethodsTreatment-naive advanced NSCLC patients harboring EGFR mutation prescribed TKI were screened and enrolled from 3 referral centers. Patients enrolled from West China Hospital were set as the training group, and the others as validation group. Both the demographic features including mutation status and BMI, and therapeutic effects including objective response rate (ORR), progression-free survival (PFS), and overall survival (OS) were collected.ResultsIn the training group, patients were dichotomized according to their BMI. Those with higher BMI (>22.5) achieved a prolonged PFS compared with those with lower BMI (13.8 and 10.9 mon, HR: 0.68; 95% CI: 0.54-0.86; P = 0.001), and the priority persisted irrespective of different cut-off values. Besides, the favorable association of high BMI with long PFS was confirmed in the validation cohort (14.0 and 11.6 mon, P=0.089) and whole cohort (13.7 and 11.3 mon, P=0.004). In the multivariate analysis, BMI was an independent favorable factor of PFS, together with gender, albumin, and performance. By integration of these factors, a nomogram to predict to 1-,3-year PFS was established. Finally, higher BMI was associated with better objective response rate (ORR, 74% and 69%) and longer overall survival (OS, 41.4 and 33.5 mon, P=0.011). ConclusionHigh BMI was independently associated with efficacy of EGFR-TKI treatment in advanced NSCLC patients.

Crizotinib Versus Chemotherapy on ALK-positive NSCLC: A Systematic Review of Efficacy and Safety

2018 ◽  
Vol 19 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Mingxia Wang ◽  
Guanqi Wang ◽  
Haiyan Ma ◽  
Baoen Shan
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Adverse Events ◽  
Objective Response Rate ◽  
Retrospective Studies ◽  
Response Rate ◽  
Objective Response ◽  
Treated Group ◽  
Efficacy And Safety ◽  
Alk Positive

Introduction: Crizotinib was approved to treat anaplastic lymphoma kinase (ALK)- positive non-small cell lung cancer (NSCLC) by the Food and Drug Administration in 2011.We conducted a systematic review of clinical trials and retrospective studies to compare the efficacy and safety of crizotinib with chemotherapy. </P><P> Methods: We searched electronic databases from inception to Dec. 2016. Clinical trials and retrospective studies regarding crizotinib and crizotinib versus chemotherapy in treatment of NSCLC were eligible. The primary outcomes were the objective response rate (ORR) and disease control rate (DCR). Results: Nine studies (five clinical trials and four retrospective studies) including 729 patients met the inclusion criteria. Crizotinib treatment revealed 1-year OS of 77.1% and PFS of 9.17 months. And crizotinib had a better performance than chemotherapy in ORR (OR: 4.97, 95%CI: 3.16 to 7.83, P<0.00001, I2=35%). DCR revealed superiority with crizotinib than chemotherapy (OR: 3.42, 95% CI: 2.33 to 5.01, P<0.00001, I2=0%). PR (partial response) were significant superior to that of chemotherapy through direct systematic review. No statistically significant difference in CR (complete response) was found between crizotinib-treated group and chemotherapy-treated group. Regarding SD (stable disease), chemotherapy-treated group had a better performance than crizotinib-treated group. Common adverse events associated with crizotinib were visual disorder, gastrointestinal side effects, and elevated liver aminotransferase levels, whereas common adverse events with chemotherapy were fatigue, nausea, and hematologic toxicity. This systematic review revealed improved objective response rate and increased disease control rate in crizotinib group comparing with chemotherapy group. Crizotinib treatment would be a favorable treatment option for patients with ALK-positive NSCLC. ALK inhibitors may have future potential applications in other cancers driven by ALK or c-MET gene mutations.

scholarly journals 363 Vactosertib and durvalumab as second or later line treatment for PD-L1 positive non-small cell lung cancer: interim result

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A388-A388
Author(s):  
Byoung Chul Cho ◽  
Ki Hyeong Lee ◽  
Ji-Youn Han ◽  
Byoung Yong Shim ◽  
Hye Ryun Kim ◽  
...  
Keyword(s):  
Immune Checkpoint ◽  
Objective Response Rate ◽  
Immune Checkpoint Inhibitors ◽  
Advanced Nsclc ◽  
Response Rate ◽  
Checkpoint Inhibitors ◽  
Objective Response ◽  
Platinum Based Chemotherapy ◽  
Number Of Patients ◽  
Anti Tumor Activity

BackgroundTargeting transforming growth factor-β (TGF-β) is reported to augment the efficacy of immune checkpoint inhibitors (ICIs) through either enhanced anti-tumor immunity or the correction of tumor microenvironment (TME). Therefore, the combination of vactosertib, a highly selective TGF-β RI kinase inhibitor, and durvalumab is anticipated to improve anti-tumor activity of the ICI. A phase 1b/2a study was conducted to evaluate the combination of vactosertib and durvalumab in patients with advanced NSCLC who progressed after platinum-based chemotherapy.MethodsPatients were treated with vactosertib at a dose of 200 mg twice daily (five days on and two days off) and durvalumab at a dose of 1500 mg every four weeks. Eligible patients were ≥19 years old with good performance status (ECOG 0–1) and have no prior exposure to immune checkpoint inhibitors or other TGF- β R1 kinase inhibitors. The objectives of this analysis were to evaluate the safety, antitumor activity including objective response rate (ORR), duration of response (DOR), and time to response (TTR) as well as circulating pharmacodynamic biomarkers related to TGF-β signaling. Response was assessed per RECIST (v1.1).ResultsBy August 4 2020, twenty-six PD-L1 positive (SP263 assay) patients were analyzed. Median age was 61.5 years (range 48–83), 69.2% were male, median number of previous lines of chemotherapy was 1 (range 1–4), and all patients were PD-L1 positive (15 patients with PD-L1≥25% and 11 patients with PD-L1 1–24%). The most frequently reported treatment-related adverse events (TRAE) were itching (38.5%) and skin rash (34.6%), but no Gr≥3 itching and rash were observed. Each case of the following was reported as Grade 3 TRAEs: adrenal insufficiency, anemia, and pneumonitis; Grade 4 TRAE, CPK increase, was observed in one patient. Objective response rate was 30.8% and 40.0% in patients with PD-L1≥1% and ≥25% respectively. Circulating PAI-1 and CTGF evaluated in 15 patients decreased significantly on Cycle 1 day 5. Ongoing biomarker results will be presented.ConclusionsThe combination of vactosertib and durvalumab has demonstrated a manageable safety profile and encouraging anti-tumor activity as a potential therapeutic strategy in patients with advanced NSCLC. The efficacy outcomes of this combination in a larger number of patients with advanced NSCLC will be followed.Trial RegistrationNCT03732274Ethics ApprovalThe study was approved by Ethics Board of Severance Hospital (4-2018-0892), National Cancer Center (NCC2019-0057), St. Vincent’s Hospital (VC19MDDF0205), and Chungbuk National University Hospital (2019-08-015).

Randomized, Double-Blind, Placebo-Controlled, Multicenter Phase II Study of Fruquintinib After Two Prior Chemotherapy Regimens in Chinese Patients With Advanced Nonsquamous Non‒Small-Cell Lung Cancer

2018 ◽  
Vol 36 (12) ◽  
pp. 1207-1217 ◽  
Author(s):  
Shun Lu ◽  
Jianhua Chang ◽  
Xiaoqing Liu ◽  
Jianhua Shi ◽  
You Lu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Growth Factor ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Small Cell ◽  
Small Cell Lung ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Multicenter Phase

Purpose Patients with advanced non‒small-cell lung cancer (NSCLC) who fail two lines of chemotherapy have unmet medical needs. The kinase inhibitor fruquintinib selectively targets vascular endothelial growth factor receptors and, hence, tumor angiogenesis and lymphogenesis. This randomized, double-blind, placebo-controlled, multicenter phase II trial evaluated the efficacy and safety of fruquintinib in patients with advanced nonsquamous NSCLC who experienced disease progression after second-line chemotherapy. Patients and Methods Eligible patients were randomly assigned (two to one; stratified by epidermal growth factor receptor status) to receive fruquintinib or placebo, both in combination with best supportive care. Oral fruquintinib (5 mg once daily) was given in 4-week cycles of 3 weeks of treatment followed by 1 week off. Tumor response was assessed using Response Evaluation Criteria in Solid Tumors version 1.1. The primary end point was progression-free survival (PFS) evaluated by a blinded image central review (BICR) committee. Secondary end points included investigator-evaluated PFS, objective response rate, disease control rate, overall survival, and safety. Results Ninety-one patients from 12 hospitals received treatment with fruquintinib (n = 61) or placebo (n = 30). Median PFS was 3.8 months with fruquintinib by both BICR and investigators’ evaluations (hazard ratio by BICR, 0.34; 95% CI, 0.20 to 0.57; P < .001). Three- and 6-month survival rates were 90.2% and 67.2% in the fruquintinib group and 73.3% and 58.8% in the placebo group, respectively. The objective response rate and disease control rate were 13.1% and 60.7% with fruquintinib, compared with 0% and 13.3% with placebo ( P = .041 and < .001), respectively. The most common treatment-emergent adverse events with fruquintinib (≥ grade 3) were hypertension (8.2%), hand-foot syndrome (4.9%), and proteinuria (4.9%). Conclusion Third- and fourth-line fruquintinib for advanced NSCLC was superior to placebo and had an acceptable safety profile.

scholarly journals Intensive Multimodality Treatment for Children With Newly Diagnosed CNS Atypical Teratoid Rhabdoid Tumor

2009 ◽  
Vol 27 (3) ◽  
pp. 385-389 ◽  
Author(s):  
Susan N. Chi ◽  
Mary Ann Zimmerman ◽  
Xiaopan Yao ◽  
Kenneth J. Cohen ◽  
Peter Burger ◽  
...  
Keyword(s):  
Overall Survival ◽  
Radiation Therapy ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Malignant Neoplasm ◽  
Rhabdoid Tumor ◽  
Atypical Teratoid Rhabdoid Tumor ◽  
Newly Diagnosed ◽  
Atypical Teratoid

Purpose Atypical teratoid rhabdoid tumor (ATRT) of the CNS is a highly malignant neoplasm primarily affecting young children, with a historic median survival ranging from 6 to 11 months. Based on a previous pilot series, a prospective multi-institutional trial was conducted for patients with newly diagnosed CNS ATRT. Patients and Methods Treatment was divided into five phases: preirradiation, chemoradiation, consolidation, maintenance, and continuation therapy. Intrathecal chemotherapy was administered, alternating intralumbar and intraventricular routes. Radiation therapy (RT) was prescribed, either focal (54 Gy) or craniospinal (36 Gy, plus primary boost), depending on age and extent of disease at diagnosis. Results Between 2004 and 2006, 25 patients were enrolled; 20 were eligible for evaluation. Median age at diagnosis was 26 months (range, 2.4 months to 19.5 years). Gross total resection of the primary tumor was achieved in 11 patients. Fourteen patients had M0 disease at diagnosis, one patient had M2 disease, and five patients had M3 disease. Fifteen patients received radiation therapy: 11 focal and four craniospinal. Significant toxicities, in addition to the expected, included radiation recall (n = 2) and transverse myelitis (n = 1). There was one toxic death. Of the 12 patients who were assessable for chemotherapeutic response (pre-RT), the objective response rate was 58%. The objective response rate observed after RT was 38%. The 2-year progression-free and overall survival rates are 53% ± 13% and 70% ± 10%, respectively. Median overall survival has not yet been reached. Conclusion This intensive multimodality regimen has resulted in a significant improvement in time to progression and overall survival for patients with this previously poor-prognosis tumor.

scholarly journals The efficacy of the combination of eribulin and trastuzumab in advanced HER2-positive breast cancer: the results of Russian observational study

2020 ◽  
Vol 22 (1) ◽  
pp. 53-59
Author(s):  
Elena I. Kovalenko ◽  
Elena V. Artamonova ◽  
Elena V. Karabina ◽  
Irina I. Andreiashkina ◽  
Ekaterina A. Prokof’eva ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Clinical Practice ◽  
Observational Study ◽  
Disease Progression ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Breast Cancer Patients ◽  
Luminal Subtype ◽  
Her2 Breast Cancer

The article presents the experience of 19 Russian medical institutions on the use of eribulin in combination with trastuzumab in various treatment lines of metastatic HER2+ breast cancer in routine clinical practice. Aim. The main objective of this retrospective observational study was to evaluate the efficacy and tolerability of eribulin and trastuzumab combo in HER2+ breast cancer patients pretreated with anthracyclines and taxanes. The analysis included 60 patients who received at least 2 cycles of eribulin in combination with trastuzumab. 2 patients (3.3%) received treatment as the 1st line, as the 2nd 14 (23.3%), as the 3rd 16 (26.7%), and as the 4th and more 28 (46.7%). Materials and methods. Complete response was achieved in 2 (3.3%) patients, partial response in 9 (15%), stable disease in 33 (55%), stabilization for more than 6 months in 11 (18.3%), disease progression was detected in 16 (26.7%) patients. The objective response rate was 18.3% in the whole group, the clinical benefit rate 36.7%. Results. The objective response rate in the group of the luminal subtype (ER/PR+HER2+) was 26.9%, in HER2-overexpressed subtype (ER-PR-HER2+) 8.8% and 64.7%, respectively, disease progression was recorded 2.3 times more often 35.3% versus 15.5% in the luminal subtype group. The median progression-free survival in patients with HER2+ breast cancer was 4.95 months (95% confidence interval CI 3.048.29 months), in luminal subtype 6.38 months (95% CI 3.338.54 months), in non-luminal 4.44 months (95% CI 2.47.96 months); p=0.306. The treatment was well tolerated, the spectrum of adverse events corresponded to the eribulin toxicity profile. Conclusions. The uniqueness of this study lies in the fact that on a large clinical material from the standpoint of real clinical practice, a very promising treatment regimen that is not used routinely in a number of countries has been studied, its effectiveness and satisfactory tolerance have been confirmed.

Effects of adding necitumumab to first-line chemotherapy in patients with stage IV non-small-cell lung cancer: Meta-analysis

2019 ◽  
Vol 26 (6) ◽  
pp. 1331-1342
Author(s):  
Irena Ilic ◽  
Sandra Sipetic ◽  
Jovan Grujicic ◽  
Milena Ilic
Keyword(s):  
Overall Survival ◽  
Objective Response Rate ◽  
Advanced Nsclc ◽  
Response Rate ◽  
Meta Analysis ◽  
Objective Response ◽  
Stage Iv ◽  
Progression Free Survival ◽  
First Line ◽  
Free Survival

Introduction Almost half of patients with non-small-cell lung cancer (NSCLC) are diagnosed at an advanced stage. Our aim was to assess the effects of adding necitumumab to chemotherapy in patients with stage IV NSCLC. Material and methods A comprehensive literature search was performed according to pre-specified inclusion and exclusion criteria. Data on overall survival, progression-free survival, objective response rate and adverse events were extracted. A meta-analysis was performed to obtain pooled hazard ratios (HR) and corresponding 95% confidence intervals (CI) for time-to-event data and pooled odds ratio (OR) with 95% CI for dichotomous outcomes. Results The meta-analysis included four randomized clinical trials with 2074 patients. The pooled results showed significant improvement for overall survival (HR = 0.87 (95% CI 0.79–0.95), p = 0.004) when necitumumab was added to chemotherapy in patients with advanced NSCLC. No statistically significant improvement was noted for progression-free survival and objective response rate (HR = 0.83 (95% CI 0.69–1.01), p = 0.06 and OR = 1.46 (95% CI 0.90–2.38), p = 0.13, respectively). Subgroup analysis showed that in patients with non-squamous NSCLC, there was no benefit in overall survival and objective response rate. Patients with advanced NSCLC who received necitumumab were at the highest odds of developing a skin rash (OR = 14.50 (95% CI 3.16–66.43), p = 0.0006) and hypomagnesaemia (OR = 2.77 (95% CI 2.23–3.45), p < 0.00001), while the OR for any grade ≥3 adverse event was 1.55 (95% CI 1.28–1.87, p < 0.00001). Conclusions The addition of necitumumab to standard chemotherapy in a first-line setting in patients with stage IV NSCLC results in a statistically significant improvement in overall survival, while the results were not significant for progression-free survival and objective response rate.

scholarly journals Pyrotinib in HER2-Mutant Advanced Lung Adenocarcinoma After Platinum-Based Chemotherapy: A Multicenter, Open-Label, Single-Arm, Phase II Study

2020 ◽  
Vol 38 (24) ◽  
pp. 2753-2761 ◽  
Author(s):  
Caicun Zhou ◽  
Xingya Li ◽  
Qiming Wang ◽  
Guanghui Gao ◽  
Yiping Zhang ◽  
...  
Keyword(s):  
Lung Adenocarcinoma ◽  
Phase Ii ◽  
Objective Response Rate ◽  
Response Rate ◽  
Phase Ii Study ◽  
Objective Response ◽  
Unmet Need ◽  
Open Label ◽  
Platinum Based Chemotherapy ◽  
Grade 3

PURPOSE Targeted therapies against non–small-cell lung cancer (NSCLC) harboring HER2 mutations remain an unmet need. In this study, we assessed the efficacy and safety of pyrotinib in patients with HER2-mutant advanced NSCLC in a prospective, multicenter, open-label, single-arm, phase II study. PATIENTS AND METHODS Patients with stage IIIB or IV HER2-mutant lung adenocarcinoma who were previously treated with platinum-based chemotherapy were enrolled to receive pyrotinib at a dose of 400 mg/d for 21-day cycles. The primary end point was objective response rate per independent review committee (IRC). RESULTS Between October 20, 2016, and December 10, 2018, 60 patients received pyrotinib monotherapy. At baseline, 58 (96.7%) were stage IV, and 25 (41.7%) received at least 2 lines of prior chemotherapy. As of data cutoff on June 20, 2019, IRC-assessed objective response rate was 30.0% (95% CI, 18.8% to 43.2%). All subgroups of patients with different HER2 mutation types showed a favorable objective response rate. The objective response rates were similar between patients with and without brain metastases (25.0% v 31.3%). The median duration of response was 6.9 months (95% CI, 4.9 to 11.1 months). The median progression-free survival was 6.9 months (95% CI, 5.5 to 8.3 months) per IRC. The median overall survival was 14.4 months (95% CI, 12.3 to 21.3 months). Treatment-related adverse events of grade 3 or 4 occurred in 28.3% of patients, with the most common being diarrhea (20.0%; all grade 3). No treatment-related deaths were reported. CONCLUSION Pyrotinib showed promising antitumor activity and an acceptable safety profile in chemotherapy-treated patients with HER2-mutant NSCLC.

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