Evidence map›Paper›PMID 39226883›Full record

ArticleCerebrovascular diseases extra2024

Safety and Efficacy Comparison of Tenecteplase and Alteplase for Clinically Suspected Large Vessel Occlusion Strokes without Thrombectomy.

Wai Ting Lo, Wing Chi Fong, Chris Siu Kwan Chau, Moamina Ismail, Jessica Tsz Ching Li, Chong Ching Chan, Chi Him Simon Chan, Chung Yuen Chan, Germaine Hui-Fai Chan, Andrew Lung-Tat Chan and 7 more

Abstract readComparative Study
In one paragraph

Article in Cerebrovascular diseases extra, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  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

17 authors.

Wai Ting LoDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Wing Chi FongDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Chris Siu Kwan ChauDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Moamina IsmailDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Jessica Tsz Ching LiDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Chong Ching ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Chi Him Simon ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Chung Yuen ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Germaine Hui-Fai ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Andrew Lung-Tat ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Man Sin WongDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Wai Yan Vivian KwokDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Hiu Fan OrDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Shun Tim ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Ching Shing FongDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Nga Man ChanDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.
Yuk Fai CheungDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong, Hong Kong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTenecteplase is a thrombolytic with higher fibrin affinity and is potentially better in clot lysis. A higher spontaneous recanalisation rate for large vessel occlusion (LVO) strokes had been shown in comparison studies with alteplase. Results of the LVO studies reflect the composite effect of the thrombolytic and thrombectomy, as patients would be treated by thrombectomy had they not been recanalised by intravenous thrombolysis alone. Thrombectomy is not readily available in many parts of the world. Our study aimed to compare the outcomes of suspected LVO patients treated with tenecteplase versus alteplase only, without the confounding effect of thrombectomy.

methodsThis is a retrospective review. Data of patients given tenecteplase from May 2020 to August 2023 and those given alteplase 0.9 mg/kg from January 2019 to August 2023 were retrieved. Due to fluctuation in supply of tenecteplase during the COVID pandemic, some LVO patients were given alteplase. Patients with anterior circulation, clinically suspected LVO strokes (defined as National Institutes of Health Stroke Scale (NIHSS) score ≥6, plus cortical signs or hyperdense vessel sign), with thrombolysis given within 4.5 h of stroke onset were analysed. Patients with thrombectomy done were excluded. Safety and efficacy outcomes were compared.

resultsThere were 245 tenecteplase-treated patients treated between May 1, 2020, and August 31, 2023, and 732 patients were treated with alteplase between January 1, 2019, to August 31, 2023. Out of these, 148 tenecteplase patients and 138 alteplase 0.9 mg/kg patients fulfilled the study criteria. The symptomatic intracerebral haemorrhage rate was non-significantly lower in the tenecteplase group (2.1% vs. 5.8%, p = 0.13). There were no significant differences in the rate of ≥8-point NIHSS improvement (23.6% vs. 23.7%, p = 1) or the ≥4-point improvement (40.5% vs. 40.7%, p = 1) at 24 h. At 3 months, 21.6% of tenecteplase patients had good functional outcome (modified Rankin scale [mRS] 0-2), compared to 26.3% in the alteplase group (p = 0.40).

conclusionIn this pragmatic study of clinically suspected anterior circulation LVO patients without thrombectomy, outcome solely reflects the effects of tenecteplase. Tenecteplase showed comparable safety and efficacy to alteplase, but the result should be interpreted with caution in view of its small sample size and non-randomised study design.

Indexed as

Fibrinolytic AgentsIschemic StrokeTenecteplaseThrombolytic TherapyTissue Plasminogen ActivatorAgedAged, 80 and overDisability EvaluationFemaleHumansMaleMiddle AgedRecovery of FunctionRetrospective StudiesThrombectomyTime FactorsFibrinolytic AgentsTenecteplaseTissue Plasminogen ActivatorIschaemic strokeTenecteplaseThrombolysisTissue plasminogen activator

Identifiers

PMID39226883
PMCPMC11521459

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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.