Observational studyCancer immunology, immunotherapy : CII2024
The efficacy and safety of adding PD-1 blockade to induction chemotherapy and concurrent chemoradiotherapy (IC-CCRT) for locoregionally advanced nasopharyngeal carcinoma: an observational, propensity score-matched analysis.
Observational study in Cancer immunology, immunotherapy : CII, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
16 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- The Addition of Concurrent Immune Checkpoint Inhibitors for Chemoradiotherapy With Consolidative Immune Checkpoint Inhibitors in Unresectable Cancers: A Systematic Review and Meta-Analysis.International journal of cancer · 2026Pooled it
- PD-1/PD-L1 inhibitors for locally advanced nasopharyngeal carcinoma: a systematic review and meta-analysis based on randomized controlled trials.BMC cancer · 2025Pooled it
- Efficacy and safety of induction immunotherapy plus chemotherapy in patients with locoregionally advanced nasopharyngeal carcinoma: a meta-analysis.British journal of cancer · 2025Pooled it
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- Article
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- Chemoimmunotherapy as induction treatment in concurrent chemoradiotherapy for patients with nasopharyngeal carcinoma stage IVa.Annals of medicine · 2025Article
- Two or three cycles of induction chemotherapy in locoregionally advanced nasopharyngeal carcinoma?BMC cancer · 2025Article
- Tumor immune microenvironment delineates progression trajectories of distinct nasopharyngeal carcinoma phenotypes.Cell reports. Medicine · 2025Article
- A nomogram integrating clinical stage and pre-EBV DNA to identify the cycles of induction chemotherapy for locoregionally advanced nasopharyngeal carcinoma.Radiation oncology (London, England) · 2025Article
- Induction Camrelizumab and Modified TPF (Nab-Paclitaxel, Cisplatin, and S-1) in Locoregionally Advanced Nasopharyngeal Carcinoma.Cancer science · 2025Article
- Efficacy and Safety of Combined PD-1 Inhibitor With Induction Chemotherapy Followed by IMRT Plus Nimotuzumab in Locally Advanced Nasopharyngeal Carcinoma: A Retrospective Analysis.OncoTargets and therapy · 2025Article
- Development of a Predictive Model for the Risk of Myelosuppression in Patients With Nasopharyngeal Carcinoma Undergoing Chemoradiotherapy.Clinical Medicine Insights. Oncology · 2025Article
- Reply to Commentary on "Metronomic S-1 Adjuvant Chemotherapy Improves Survival in Patients with Locoregionally Advanced Nasopharyngeal Carcinoma".Cancer research and treatment · 2025Article
- Article
- Efficacy and Safety of Neoadjuvant Immunotherapy Combined with Sandwich Chemoradiotherapy in Locally Advanced Nasopharyngeal Carcinoma: A Retrospective Study.OncoTargets and therapy · 2024Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
backgroundDespite the success of PD-1 blockade in recurrent/metastatic nasopharyngeal carcinoma (NPC), its effect for locoregionally advanced NPC (LANPC) remains unclear. This study aimed to evaluate the benefit of adding PD-1 blockade to the current standard treatment (gemcitabine and cisplatin IC <induction chemotherapy> plus cisplatin CCRT <concurrent chemoradiotherapy>) for LANPC patients.
methodsFrom January 2020 to November 2022, 347 patients with non-metastatic high-risk LANPC (stage III-IVA, excluding T3-4N0) were included. Of the 347 patients, 268 patients were treated with standard treatment (IC-CCRT), and 79 received PD-1 blockade plus IC-CCRT (PD-1 group). For the PD-1 group, PD-1 blockade was given intravenously once every 3 weeks for up to 9 cycles (3 induction and 6 adjuvant). The primary endpoint was disease-free survival (DFS) (i.e. freedom from local/regional/distant failure or death). The propensity score matching (PSM) with the ratio of 1:2 was performed to control confounding factors.
resultsAfter PSM analysis, 150 patients receiving standard treatment and 75 patients receiving additional PD-1 blockade remained in the current analysis. After three cycles of IC, the PD-1 group had significantly higher rates of complete response (defined as disappearance of all target lesions; 24% vs. 9%; P = 0.006) and complete biological response (defined as undetectable cell-free Epstein-Barr virus DNA, cfEBV DNA; 79% vs. 65%; P = 0.046) than that in the standard group. And the incidence of grade 3-4 toxicity during IC was 47% in the PD-1 group and 41% in the standard group, with no significant difference (P = 0.396). During follow-up period, additional PD-1 blockade to standard treatment improved 3-year DFS from 84 to 95%, with marginal statistical significance (HR, 0.28; 95%CI, 0.06-1.19; P = 0.064).
conclusionAdditiaonl PD-1 blockade to gemcitabine and cisplatin IC and adjuvant treatment results in significant improvement in tumor regression, cfEBV DNA clearance, superior DFS, and comparable toxicity profiles in high-risk LANPC patients.
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