Annals of Indian Academy of Neurology
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Tenecteplase and alteplase for thrombolysis of acute ischemic stroke within 4.5 hours: An efficacy and safety study

1 Department of Neurology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
2 Department of Neurology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand; Department of Neurology, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India

Correspondence Address:
Niraj Kumar,
Additional Professor, Department of Neurology, All India Institute of Medical Sciences, Rishikesh - 249 203, Uttarakhand
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aian.aian_1127_21

Objective: To compare the efficacy and safety of thrombolysis using Tenecteplase (TNK) versus alteplase in acute ischaemic stroke (AIS) patients within 4.5-hour window period. Methods: This retrospective study involved the collection of data from consecutive AIS patients who underwent thrombolysis in the Department of Neurology at a tertiary care university hospital, between May 2018 to January 2021. Data including clinical history, neurological assessment using modified Rankin score (mRS), National Institutes of Health Stroke Scale (NIHSS), brain neuroimaging, treatment, and outcome details were collected. The primary efficacy outcome was the proportion of patients with good functional recovery (mRS of 0–2) at 90 days of follow-up. Results: Total of 42 patients with AIS underwent thrombolysis, of which 19 received alteplase and 23 got TNK. The median (range) onset to door time [120 (20-210) versus 120 (30-210) minutes; P = 0.823] and median (range) onset to needle time [150 (60-255) versus 160 (50-240) minutes; P = 0.779] were comparable in both alteplase and TNK groups, respectively. The primary outcome of good functional recovery (mRS ≤2) at 3 months was observed in more than half the patients in each group and was comparable (P = 0.701). Post-thrombolysis complications including cerebral haemorrhage (symptomatic or asymptomatic) were comparable between the two groups (31.6% vs 30.4%; P = 0.936), except a significantly higher proportion of patients on TNK required mechanical ventilation (10.5% v/s 43.5%; P = 0.019). Conclusions: This study showed a comparable efficacy and safety profile of alteplase and TNK in thrombolysis of AIS throughout the 4.5 hours window period. Moreover, the ease of administration and better pharmacodynamic properties favors tenecteplase.

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