Evidence map›Paper›PMID 34935776›Full record

ArticleClinical and translational radiation oncology2022

Meta-analysis of chemotherapy in nasopharynx carcinoma (MAC-NPC): An update on 26 trials and 7080 patients.

Pierre Blanchard, Anne W M Lee, Alexandra Carmel, Ng Wai Tong, Jun Ma, Anthony T C Chan, Ruey Long Hong, Ming-Yuan Chen, Lei Chen, Wen-Fei Li and 13 more

Abstract read
In one paragraph

Article in Clinical and translational radiation oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Trial
  2. Survival and patterns of recurrence in patients with nasopharyngeal carcinoma from a non-endemic region-A German multicenter analysis.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026
    Article
  3. Article
  4. [European journal of nuclear medicine and molecular imaging · 2026
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  11. Review
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  14. [Role of chemotherapy in radiotherapy-treated nasopharynx carcinoma: update of the MAC-NPC network meta-analysis].Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2024
    Article
  15. Observational
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

23 authors.

Pierre BlanchardDepartment of Radiation Oncology, Gustave Roussy Cancer Campus, Université Paris-Sud, Université Paris-Saclay, Villejuif, France Gustave-Roussy, Villejuif, France.
Anne W M LeeUniversity of Hong Kong - Shenzhen Hospital, University of Hong-Kong, China.
Alexandra CarmelOncostat U1018 INSERM, labeled Ligue Contre le Cancer, Villejuif, France.
Ng Wai TongUniversity of Hong Kong - Shenzhen Hospital, University of Hong-Kong, China.
Jun MaSun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou 510060, China.
Anthony T C ChanState Key Laboratory of Translational Oncology, Hong Kong Cancer Institute, The Chinese University of Hong Kong, Hong Kong, China.
Ruey Long HongNational Taiwan University Hospital, Taipei, Taiwan.
Ming-Yuan ChenSun Yat-sen University Cancer Center, Guangzhou, China.
Lei ChenSun Yat-sen University Cancer Center, Guangzhou, China.
Wen-Fei LiSun Yat-sen University Cancer Center, Guangzhou, China.
Pei-Yu HuangSun Yat-sen University Cancer Center, Guangzhou, China.
Dora L W KwongDepartment of Clinical Oncology, University of Hong Kong, Hong Kong, China.
Sharon S X PohNational Cancer Center, Singapore.
Roger NganUniversity of Hong Kong - Shenzhen Hospital, University of Hong-Kong, China.
Hai-Qiang MaiSun Yat-sen University Cancer Center, Guangzhou, China.
Camille OllivierOncostat U1018 INSERM, labeled Ligue Contre le Cancer, Villejuif, France.
George FountzilasAristotle University of Thessaloniki School of Medicine, Thessaloniki, and Hellenic Cooperative Oncology Group, Athens, Greece and German Oncology Center, Limassol, Cyprus.
Li ZhangSun Yat-sen University Cancer Center, Guangzhou, China.
Jean BourhisDepartment of Radiotherapy, Centre hospitalier universitaire vaudois, Lausanne, Switzerland.
Anne AupérinOncostat U1018 INSERM, labeled Ligue Contre le Cancer, Villejuif, France.
Benjamin LacasOncostat U1018 INSERM, labeled Ligue Contre le Cancer, Villejuif, France.
Jean-Pierre PignonOncostat U1018 INSERM, labeled Ligue Contre le Cancer, Villejuif, France.
MAC-NPC collaborative Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeChemotherapy, when added to radiotherapy, improves survival in locally advanced nasopharyngeal carcinoma (NPC). This article presents the second update of the Meta-Analysis of Chemotherapy in NPC.

methodsPublished or unpublished randomized trials assessing radiotherapy (±a second chemotherapy timing) with/without chemotherapy in non-metastatic NPC patients were identified. Updated data were sought for studies included in the previous rounds of the meta-analysis. The primary endpoint was overall survival. All trials were analyzed following the intent-to-treat principle using a fixed-effects model. Treatments were classified in five subsets according to chemotherapy timing. The statistical analysis plan was pre-specified.

resultsEighteen new trials were identified. Individual patient data were available for seven. In total, the meta-analysis now included 26 trials and 7,080 patients. The addition of chemotherapy reduced the risk of death, with a hazard ratio (HR) of 0.79 (95% confidence interval (CI) [0.73; 0.85]), and an absolute survival increase at 5 and 10 years of 6.1% [+3.9; +8.3] and + 8.4% [+5.7; +11.1], respectively. The largest effect was observed for concomitant + adjuvant, induction (with concomitant in both arms) and concomitant chemotherapy, with respective HR [95%CI] of 0.68 [0.59; 0.79] (absolute survival increase at 5 years: 12.3% (7.0%;17.6%)), 0.73 [0.63; 0.86] (6.0% (2.5%;9.5%)) and 0.81 [0.70; 0.92] (5.2% (0.8%;9.6%)). The benefit of chemotherapy was also demonstrated by improvement in progression-free survival, cancer mortality, locoregional control and distant control. There was a significant interaction between patient age and chemotherapy effect.

conclusionThis updated meta-analysis confirms the benefit of concomitant chemotherapy and concomitant + adjuvant chemotherapy, and suggests that addition of induction or adjuvant chemotherapy to concomitant chemotherapy improves tumor control and survival. The benefit of chemotherapy decreases with increasing patient age.

Indexed as

ChemotherapyIndividual patient dataMeta-analysisNasopharynx carcinomaRandomized trials

Identifiers

PMID34935776
PMCPMC8660702

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.