Evidence map›Paper›PMID 33086985›Full record

ArticleTherapeutic advances in respiratory disease

Clinical features of patients with small cell lung cancer and idiopathic pulmonary fibrosis treated with chemotherapy or chemoradiotherapy.

Nobuhiro Kanaji, Junichi Shimizu, Kenichiro Sakai, Yutaka Ueda, Hiroshi Miyawaki, Naohiro Watanabe, Takehiro Uemura, Toyoaki Hida, Takuya Inoue, Naoki Watanabe and 4 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in Therapeutic advances in respiratory disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 21% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Risk factors and management of lung cancer in idiopathic pulmonary fibrosis: A comprehensive review.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2025
    Article
  4. Review
  5. Article
  6. Article
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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

14 authors at 3 institutions in 1 country.

Nobuhiro KanajiDepartment of Internal Medicine, Division of Hematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.ORCID 0000-0001-7365-4927
Junichi ShimizuDepartment of Thoracic Oncology, Aichi Cancer Center Hospital, Nagoya, Aichi, Japan.
Kenichiro SakaiDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Yutaka UedaDepartment of Respiratory Medicine, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Hiroshi MiyawakiDepartment of Respiratory Medicine, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Naohiro WatanabeDepartment of Thoracic Oncology, Aichi Cancer Center Hospital, Nagoya, Aichi, Japan.
Takehiro UemuraDepartment of Thoracic Oncology, Aichi Cancer Center Hospital, Nagoya, Aichi, Japan.
Toyoaki HidaDepartment of Thoracic Oncology, Aichi Cancer Center Hospital, Nagoya, Aichi, Japan.ORCID 0000-0003-3537-0020
Takuya InoueDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Naoki WatanabeDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Yasuhiro OoharaDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Hiroaki DobashiDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Mikiya KatoDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Norimitsu KadowakiDepartment of Internal Medicine, Kagawa University, Kita-gun, Kagawa, Japan.
Kagawa University · JPAichi Cancer Center · JPKagawa Prefectural Central Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe clinical features of patients with small cell lung cancer (SCLC) and idiopathic pulmonary fibrosis (IPF) have not been fully elucidated. PATIENTS AND

methodsData on 366 patients with pathologically confirmed SCLC who had been treated with chemotherapy or chemoradiotherapy were retrospectively analyzed to investigate the clinical features of SCLC with IPF.

resultsA total of 97 out of the 366 patients were diagnosed with interstitial lung disease (ILD), and 75 of them had IPF. For both the limited disease (LD) and extensive disease (ED) stages, the median progression-free survival (PFS) and overall survival (OS) were significantly shorter in the patients with IPF compared with non-ILD patients. A multivariate analysis showed that poor performance status, ED stage, and the presence of IPF were associated with shorter OS. The response rate to first-line therapy was significantly lower in patients with IPF compared with the non-ILD patients. The rate of patients receiving fewer than three cycles of first-line chemotherapy was higher in patients with IPF, which was a factor of poor survival. In LD-stage patients with IPF, chemoradiotherapy was associated with longer PFS and OS compared with chemotherapy only.

conclusionIn patients with SCLC, the presence of IPF was associated with a lower response rate as well as shorter PFS and shorter OS. There are some cases that are suitable for chemoradiotherapy, even among patients with IPF.

Indexed as

ChemoradiotherapyAdultAgedAged, 80 and overAntineoplastic AgentsFemaleHumansIdiopathic Pulmonary FibrosisLung NeoplasmsMaleMiddle AgedProgression-Free SurvivalRetrospective StudiesRisk AssessmentRisk FactorsSmall Cell Lung CarcinomaAntineoplastic Agentsacute exacerbationidiopathic pulmonary fibrosisinterstitial lung diseaseresponsesmall cell lung cancersurvival

Identifiers

PMID33086985
PMCPMC7586036
OpenAlexW3093828584

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.