Evidence map›Paper›PMID 32900864›Full record

SynthesisJournal for immunotherapy of cancer2020

Immune-checkpoint inhibitors plus chemotherapy versus chemotherapy as first-line treatment for patients with extensive-stage small cell lung cancer.

Fei Zhou, Wencheng Zhao, Xiaomei Gong, Shengxiang Ren, Chunxia Su, Tao Jiang, Caicun Zhou

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Journal for immunotherapy of cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 13% of its field
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, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Fei Zhou *Department of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China.
Wencheng Zhao *Department of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China.
Xiaomei Gong *Department of Radiation Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China.
Shengxiang RenDepartment of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China.
Chunxia SuDepartment of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China.
Tao JiangDepartment of Pulmonary Medicine, Shanghai Respiratory Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China caicunzhou_dr@163.com tonyjiangdr@163.com.
Caicun ZhouDepartment of Medical Oncology, Shanghai Pulmonary Hospital, Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, China caicunzhou_dr@163.com tonyjiangdr@163.com.
Shanghai Pulmonary Hospital · CNTongji University · CNFudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We performed a meta-analysis to comprehensively investigate the efficacy and safety of immune-checkpoint inhibitors (ICIs) plus chemotherapy in patients with extensive-stage small cell lung cancer (ES-SCLC). The primary outcome was overall survival (OS). The secondary outcomes included progression-free survival (PFS), objective response rate (ORR) and ≥grade 3 adverse events (AEs). A total of six studies involving 2905 patients were identified, including 469 patients receiving program death ligand 1 (PD-L1) inhibitor plus chemotherapy, 308 receiving PD-1 inhibitors plus chemotherapy, 563 receiving CTLA-4 inhibitors plus chemotherapy, 268 receiving PD-L1/CTLA-4 inhibitors plus chemotherapy, and 1297 receiving chemotherapy alone. 10.8% (283/2615) patients had baseline brain metastases (BMs). Notably, ICIs plus chemotherapy was associated with significantly improved OS (HR, 0.82; 95% CI, 0.75 to 0.89). Subgroup analyses revealed that PD-1 inhibitors (HR, 0.77; 95% CI, 0.64 to 0.92) and PD-L1 inhibitors (HR, 0.73; 95% CI, 0.63 to 0.85) plus chemotherapy yielded a statistically significant improvement in OS while CTLA-4 inhibitors did not (HR, 0.92; 95% CI, 0.81 to 1.06). In patients with baseline BMs, ICIs plus chemotherapy showed no survival benefits over chemotherapy alone (HR, 1.23; 95% CI, 0.92 to 1.64). ICIs plus chemotherapy also significantly prolonged PFS (HR, 0.81; 95% CI, 0.75 to 0.87) while the pooled ORRs were comparable between ICIs plus chemotherapy and chemotherapy alone (RR, 1.04; 95% CI, 0.99 to 1.10). Patients treated with CTLA-4 inhibitors (relative risk (RR), 1.12; 95% CI, 0.99 to 1.28) experienced more≥grade 3 AEs than those treated with PD-1/PD-L1 inhibitors (RR, 1.03; 95% CI, 0.96 to 1.11). The addition of PD-1/PD-L1 inhibitors to chemotherapy resulted in significant improvements in both PFS and OS for patients with treatment-naïve ES-SCLC, not at the cost of increased AEs.

Indexed as

HumansImmune Checkpoint InhibitorsImmunotherapyLung NeoplasmsNeoplasm StagingSmall Cell Lung CarcinomaImmune Checkpoint Inhibitorslung neoplasms

Identifiers

PMID32900864
PMCPMC7477983
OpenAlexW3084346982

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.