Evidence map›Paper›PMID 32211521›Full record

ArticleeNeurologicalSci2020

Pembrolizumab treatment of metastatic urothelial cancer without exacerbating myasthenia gravis.

Akiko Ishii, Minato Yokoyama, Hiroshi Tsuji, Yasuhisa Fujii, Akira Tamaoka

Open access · goldAbstract readCase Reports
In one paragraph

Article in eNeurologicalSci, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 49% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Review
  2. Review
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

5 authors at 2 institutions in 1 country.

Akiko IshiiDepartment of Neurology, Faculty of Internal Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan.
Minato YokoyamaDepartment of Urology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
Hiroshi TsujiDepartment of Neurology, Faculty of Internal Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan.
Yasuhisa FujiiDepartment of Urology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
Akira TamaokaDepartment of Neurology, Faculty of Internal Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan.
University of Tsukuba · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pembrolizumab is an immune checkpoint inhibitor (ICI) that targets the programmed cell death (PD)-1 receptor. It significantly increases the overall survival in patients with locally advanced or metastatic urothelial cancer. However, its administration may induce serious immune-related adverse effects, such as myocarditis and myasthenia gravis (MG). Therefore, ICI treatment may have been withheld for MG patients with cancer. We report the first case in which pembrolizumab was used safely without aggravation of MG symptoms in right renal pelvic and bladder cancers, even though the anti-acetylcholine receptor antibody (anti-ACh-R Ab) serum concentration increased. The patient was a 70-year-old man diagnosed with stage III renal pelvic cancer and bladder cancer, with multiple liver metastases. He was previously diagnosed with MG at the age of 58 years. During second-line treatment with pembrolizumab, his anti-AChR Ab levels increased from 0.8 to 10.9, without exacerbation of MG symptoms. The liver metastases disappeared after five courses of pembrolizumab. This report shows that MG is not a reason to refrain from using PD-1 inhibitors in cancer patients; it should be considered when treatment is performed in highly experienced centers.

Indexed as

Immune checkpoint inhibitorMetastatic urothelial cancerMyasthenia gravisPembrolizumabSerum anti-acetylcholine receptor antibody

Identifiers

PMID32211521
PMCPMC7082602
OpenAlexW3012262690

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.