Chinese Journal of Pharmacovigilance ›› 2022, Vol. 19 ›› Issue (10): 1140-1144.
DOI: 10.19803/j.1672-8629.20210664

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One case of clinical and literature case analysis on tirofiban-induced thrombocytopenia

WANG Yuan1, WANG Pingping1, GUO Guili1, FENG Yingnan2, MA Qingfeng1,*   

  1. 1Department of Neurology, Xuanwu Hospital, Capital Medicine University, Beijing 100053, China;
    2Department of Pharmacy, Xuanwu Hospital, Capital Medicine University, Beijing 100053, China
  • Received:2021-05-26 Online:2022-10-15 Published:2022-10-17

Abstract: Objective To explore the clinical characteristics of tirofiban-induced thrombocytopenia. Methods The diagnosis and treatment of a patient with thrombocytopenia induced by tirofiban were reported. The main clinical data of the case and relevant cases collected from PubMed, Sinomed, CNKI, and Wanfang database (as of 26 January, 2021) were summarized and analyzed. Results An acute ischemic stroke patient receiving thrombolysis combined with tirofiban was reported six hours after the application of tirofiban, the routine blood test showed thrombocytopenia. Tirofiban was discontinued and the platelet count returned to the normal range on the fourth day. A total of 13 patients were enrolled in the analysis, including 10 males and 3 females, with an average age of 60.4±12.4 years. There were 11 cases of acute coronary syndrome and 2 cases of acute ischemic stroke. 1 patient received intravenous recombinant tissue plasminogen activator combined with tirofiban, 2 patients were treated with tirofiban alone and 10 were treated with tirofiban combined with other antithrombotic drugs. The median time from the application of tirofiban to onset of thrombocytopenia was 6.0 (2.5, 22.3) hours. All the patients were defined as severe thrombocytopenia. After the onset of thrombocytopenia, tirofiban was discontinued in all the 13 patients. Of them, 1 case was improved with intravenous platelet transfusion, 2 cases received human immunoglobulin combined with platelet transfusion. With drug discontinuation, the platelet count returned to the normal range in about 5 days. Conclusion tirofiban‐related thrombocytopenia may occur in 6 hours after the first medication, which could be improved by drug withdrawal alone or combination with symptomatic treatments as appropriate.

Key words: tirofiban, thrombocytopenia, drug‐related side effects, adverse drug reaction

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