Background: The current analysis was performed to evaluate the impact of PIK3CA hotspot mutations on everolimus efficacy in BOLERO-2 participants, using cell-free DNA (cfDNA) from plasma samples collected at the time of patient randomisation.
Methods: PIK3CA H1047R, E545K, and E542K mutations in plasma-derived cfDNA were analysed by droplet digital PCR (ddPCR). Median PFS was estimated for patient subgroups defined by PIK3CA mutations in each treatment arm.
Results: Among 550 patients included in cfDNA analysis, median PFS in everolimus vs placebo arms was similar in patients with tumours that had wild-type or mutant PIK3CA (hazard ratio (HR), 0.43 and 0.37, respectively). Everolimus also prolonged median PFS in patients with PIK3CA H1047R (HR, 0.37) and E545K/E542K mutations (HR=0.30) with a similar magnitude.
Conclusions: Mutation analysis of plasma-derived cfDNA by ddPCR suggests that PFS benefit of everolimus was maintained irrespective of PIK3CA genotypes, consistent with the previous analysis of archival tumour DNA by next-generation sequencing.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355930 | PMC |
| http://dx.doi.org/10.1038/bjc.2017.25 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficacy, safety, and multi-omics analysis of pembrolizumab combined with nab-paclitaxel and platinum as first-line treatment in patients with recurrent or metastatic head and neck squamous cell carcinoma: A single-arm phase 2 study.
Chin J Cancer Res
December 2024
Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
Objective: Based on the findings of the KEYNOTE-048 study, pembrolizumab in combination with platinum and fluorouracil is the standard first-line treatment for recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC). The efficacy and safety of pembrolizumab combined with nab-paclitaxel and platinum in such patients remain unexplored.
Methods: This single-arm phase 2 study enrolled patients with R/M HNSCC who received pembrolizumab (200 mg), nab-paclitaxel (260 mg/m²), and either cisplatin (75 mg/m²) or carboplatin [area under the curve (AUC) 5] every 21 d for up to six cycles, followed by pembrolizumab maintenance therapy.
Panitumumab plus 5-fluorouracil and folinic acid or 5-fluorouracil and folinic acid alone as maintenance therapy in RAS wild-type metastatic colorectal cancer (PanaMa, AIO KRK 0212): final efficacy analysis of a randomised, open-label, phase 2 trial.
EClinicalMedicine
January 2025
Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Hematology, Oncology and Cancer Immunology, Berlin, Germany.
Background: The PanaMa trial aimed to compare the efficacy of 5-fluorouracil and folinic acid (FU/FA) ± panitumumab maintenance in untreated wild-type metastatic colorectal cancer (mCRC) patients.
Methods: In this final phase 2 trial analysis, adult mCRC patients responding to six cycles of FU/FA, oxaliplatin and panitumumab were randomized (1:1, open-label) to maintenance of either FU/FA + panitumumab or FU/FA alone. The primary endpoint was superiority of progression-free survival of maintenance (PFS; time from random assignment to progression/death) in favour of FU/FA + panitumumab.
Comparing immunotherapy effectiveness for unresectable hepatocellular carcinoma: infiltrative versus non-infiltrative types in real-world settings.
Ther Adv Med Oncol
January 2025
Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, Tainan 704, Taiwan.
Background: Infiltrative hepatocellular carcinoma (HCC) is often associated with an unfavorable prognosis, posing a challenge in determining the optimal therapeutic approach. Immunotherapy, employing immune checkpoint inhibitors (ICIs), has become a preferred first-line treatment for advanced HCC. However, the overall effectiveness of ICIs in patients with infiltrative HCC remains unclear.
View Article and Find Full Text PDFA multicenter, randomized, double-blind, placebo-controlled phase 3 study of Socazolimab or placebo combined with carboplatin and etoposide in the first-line treatment of extensive-stage small cell lung cancer.
Signal Transduct Target Ther
January 2025
Department of Medical Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
This is a randomized, double-blind, placebo-controlled phase 3 clinical trial (ClinicalTrials.gov, NCT04878016) conducted in 54 hospitals in China. Adults who were histologically diagnosed and never treated for extensive-stage small cell lung cancer (ES-SCLC) were enrolled.
View Article and Find Full Text PDFLong-term follow-up of zimberelimab in relapsed or refractory classic Hodgkin lymphoma: Insights from the phase Ⅱ YH-S001-04 clinical trial.
Leuk Res
November 2024
Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. Electronic address:
Background: Treating relapsed or refractory classical Hodgkin lymphoma (R/R cHL) remains challenging. This report extends the three-year follow-up period for the phase Ⅱ YH-S001-04 trial, expanding upon the initial 15.8-month analysis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!