Evidence map›Paper›PMID 38100026›Full record

ArticleInternational journal of hematology2024

Association of physical activity with bleeding events and safety in patients with haemophilia A starting emicizumab prophylaxis: an interim analysis of the TSUBASA study.

Keiji Nogami, Teruhisa Fujii, Akihiro Sawada, Azusa Nagao, Chiai Nagae, Masanori Nojima, Nobuaki Suzuki, Daisuke Nosaka, Tomomi Shimura, Yoshimasa Sugao and 1 more

Open access · hybridAbstract read
In one paragraph

Article in International journal of hematology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Managing Haemophilic Arthropathy in People With Haemophilia in Japan: An Informal Consensus.Haemophilia : the official journal of the World Federation of Hemophilia · 2025
    Article
  5. Article
  6. Observational
  7. Review
  8. Review
  9. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 8 institutions in 1 country.

Keiji NogamiDepartment of Pediatrics, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan. roc-noga@naramed-u.ac.jp.ORCID http://orcid.org/0000-0002-2415-2194
Teruhisa FujiiDivision of Transfusion Medicine/Hemophilia Treatment Center, Hiroshima University Hospital, Hiroshima, Japan.
Akihiro SawadaDepartment of Respiratory Medicine and Hematology, Hyogo College of Medicine, Hyogo, Japan.
Azusa NagaoDepartment of Blood Coagulation, Ogikubo Hospital, Tokyo, Japan.
Chiai NagaeDepartment of Pediatrics, St. Marianna University School of Medicine, Kanagawa, Japan.
Masanori NojimaCenter for Translational Research/Division of Advanced Medicine Promotion, Institute of Medical Science, University of Tokyo, Tokyo, Japan.
Nobuaki SuzukiDepartment of Transfusion Medicine, Nagoya University Hospital, Aichi, Japan.
Daisuke NosakaChugai Pharmaceutical Co., Ltd, Tokyo, Japan.
Tomomi ShimuraChugai Pharmaceutical Co., Ltd, Tokyo, Japan.
Yoshimasa SugaoChugai Pharmaceutical Co., Ltd, Tokyo, Japan.
Kagehiro AmanoDepartment of Laboratory Medicine, Tokyo Medical University, Tokyo, Japan.
Hiroshima University Hospital · JPHyogo Medical University · JPNagoya University Hospital · JPNara Medical University · JPOgikubo Hospital · JPSt. Marianna University School of Medicine · JPTokyo Medical University · JPTokyo University of Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLittle information exists on the relationship between bleeding outcomes and physical activity in patients with haemophilia A (PwHA).

aimThis interim analysis of the TSUBASA study (UMIN-CTR ID: UMIN000037448) evaluated the association of physical activity with bleeding and safety in PwHA starting emicizumab.

methodsPwHA without factor VIII inhibitors were recruited. Physical activity and bleed data were obtained using an electronic patient-reported outcome application and wearable activity tracker. Adverse events (AEs) were documented.

resultsAt data cut-off (31-May-2021), 107 PwHA were enrolled, with a median (range) age of 35 (0-73) years. Physical activity data were obtained for 74 participants. Of these, 47 (63.5%) recorded a total of 396 exercise events. The most common exercise events were walking (32.4%), cycling (14.9%), and football (5.4%). Two (0.5%) exercise events in the same individual were associated with bleeding (running, weight training). The safety analysis population consisted of 106 participants treated with emicizumab (median observation period: 241.5 days). Twenty-one (19.8%) participants experienced a total of 39 AEs. Five (4.7%) experienced a serious AE, none of which was emicizumab-related, and three (2.8%) experienced an adverse drug reaction.

conclusionsPwHA receiving emicizumab in the TSUBASA study experienced minimal bleeding associated with physical activity.

trial registrationTrial registration: UMIN-CTR ID: UMIN000037448.

Indexed as

Antibodies, BispecificHemophilia AAdultAgedAntibodies, Monoclonal, HumanizedExerciseFactor VIIIHemorrhageHumansMiddle AgedAntibodies, BispecificAntibodies, Monoclonal, HumanizedemicizumabFactor VIIIEmicizumabHaemophilia APatient-reported outcomePhysical activity

Identifiers

PMID38100026
PMCPMC10769904
OpenAlexW4389801072

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Registered trials

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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.