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CASE REPORT article

Front. Cardiovasc. Med.

Sec. Coronary Artery Disease

Volume 12 - 2025 | doi: 10.3389/fcvm.2025.1646968

This article is part of the Research TopicCase Reports in Coronary Artery Disease: 2025View all 12 articles

Myocardial infarction with nonobstructive coronary arteries (MINOCA) due to acute coronary vasospasm induced by toripalimab: a case report and review of literature

Provisionally accepted
Bihan  HuangBihan Huang*Xueying  HanXueying HanHaigang  ZhangHaigang ZhangShao Yuan  ChenShao Yuan Chen
  • Shenzhen Nanshan People's Hospital, Shenzhen, China

The final, formatted version of the article will be published soon.

Background: Coronary artery spasm (CAS), one of the etiologies for MINOCA, is an uncommon cause of acute chest pain. Toripalimab, a recombinant monoclonal antibody targeting programmed death receptor 1 (PD-1), exhibits a wide range of anti-tumor activities. Nevertheless, instances of toripalimab-induced cardiotoxicity have been seldom reported. Methods: We present the case of a 60-year-old male patient diagnosed with hepatocellular carcinoma who experienced MINOCA subsequent to the administration of toripalimab. Based on the patient's symptoms, electrocardiogram (ECG) findings, and coronary angiography, transient occurrence CAS was established. The patient was prescribed diltiazem sustained-release capsules. During his follow-up on an outpatient basis, he did not experience a recurrence of the previously reported chest discomfort or any other symptoms. We used the CARE checklist when writing our report. Conclusion: This is the first case report of MINOCA induced by toripalimab, mediated through coronary artery spasm. This case report emphasizes the awareness regarding the potential for severe cardiovascular complications associated with the administration of toripalimab.

Keywords: MINOCA, Coronary artery spasm, acute myocardial infarction, PD-1, Toripalimab

Received: 14 Jun 2025; Accepted: 18 Aug 2025.

Copyright: © 2025 Huang, Han, Zhang and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Bihan Huang, Shenzhen Nanshan People's Hospital, Shenzhen, China

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