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A randomized controlled study on the effect of thrombus aspiration combined with continuous intracoronary injection of tirofiban on IMR in STEMI patients with high thrombus burden

A randomized controlled study on the effect of thrombus aspiration combined with continuous intracoronary injection of tirofiban on IMR in STEMI patients with high thrombus burden - TACT

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500099293
Enrollment
Unknown
Registered
2025-03-20
Start date
2025-04-01
Completion date
Unknown
Last updated
2025-03-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

coronary heart disease

Interventions

Combination therapy group:Conventional thrombus aspiration, tirofiban intravenous loading dose in coronary artery and intravenous pump were used according to kg body weight for 24 hours, and 1/3 of th
Thrombus aspiration group:After conventional thrombus aspiration, stent implantation (pre expansion and post expansion if necessary) was performed. Tirofiban was given intravenous load according to kg

Sponsors

Zhoupu Hospital, Pudong New Area, Shanghai
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: (1) 18-80 years old, male or female; (2) STEMI was diagnosed according to the typical symptoms of persistent angina pectoris, ECG and troponin I (2 or more of the three criteria were positive); (3) The family members signed for emergency PCI treatment; (4) Coronary angiography showed complete or subtotal occlusion of the coronary artery, and the TIMI thrombus grade was greater than or equal to 4 points after the guide wire and 2.0mm balloon passed through the target vessel segment (TIMI thrombus score standard: 0, no thrombus); 1 point, blurred thrombus shadow; The length of thrombus was less than 1/2 and 3 of the normal vessel diameter. The length of thrombus was between 1/2 and 2 times of the vessel diameter; 4 points, the confirmed thrombus, with a length greater than 2 times the inner diameter of the blood vessel; 5 points, complete vascular occlusion).

Exclusion criteria

Exclusion criteria: Exclusion criteria: (1) hemoglobin was less than 120g/L in males and less than 120g/L in females; (2) History of cerebral hemorrhage or gastrointestinal hemorrhage in recent 3 months; (3) ALT was more than 2 times the upper limit of normal value or CCR was more than 3mg/dl; (4) Previously known allergy to tirofiban; (5) During pregnancy or lactation.

Design outcomes

Primary

MeasureTime frame
Index of microcirculation resistance;

Countries

China

Contacts

Public ContactZhishan SUN

Zhoupu Hospital, Pudong New Area, Shanghai

81650979@qq.com+86 136 3740 5536

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026