1-year Clinical Outcomes in Recombinant Tissue Plasminogen Activator (Rt-PA) Treated Chinese Acute Ischaemic Stroke (AIS) Patients

1-year Clinical Outcomes After Intravenous Rt-PA for Chinese AIS Patients

The objective of the study is to find out the 1-year clinical outcomes among Acute Ischaemic Stroke (AIS) patients who were treated with intravenous (IV) Recombinant Tissue Plasminogen Activator (rt-PA) within 4.5 hours of symptom onset compared with those who arrived or were admitted to the hospital within 4.5 hours of symptom onset and did not receive any reperfusion treatment in a real-world clinical setting.

Study Overview

• Status: Completed
• Conditions: Stroke
• Intervention / Treatment: Drug: rt-PA

• Study Type: Observational
• Enrollment (Actual): 12551

Contacts and Locations

Study Locations

• China
  • Shanghai, China, 200040
    • Boehringer Ingelheim (China) Investment Co., ltd.

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

In this study, AIS patient data from 80 stroke centres in the Zhejiang Stroke Quality Control Centre (ZSQCC) platform from January 2017 to March 2020 will be used.

Description

Inclusion criteria:

• Patients registered in the ZSQCC platform from Jan 2017 to Mar 2020
• ≥ 18 years of age
• Diagnosed with AIS at admission
• Arrived or admitted to the hospital within 4.5 hours of symptom onset
• If treated with IV rt-PA: received IV rt-PA within 4.5 hours of symptom onset

Exclusion criteria:

• Documented Intravenous Thrombolysis (IVT) contraindication except age to IV rt-PA treatment according to the Summary of Product Characteristics (SmPC)
• Missing any one of the key data (age, gender, baseline National Institutes of Health Stroke Scale [NIHSS], time of symptom onset, time of hospital arrival or admission, IVT or not, time of IV rt-PA treatment)
• Received thrombolysis agents other than rt-PA (urokinase, tenecteplase, recombinant plasminogen activator, prourokinase, streptokinase)
• Received endovascular treatment
• Received IV rt-PA after 4.5 hours of symptom onset

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Retrospective

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
IV rt-PA cohort; Patients who received IV rt-PA within 4.5 hours of symptom onset	Drug: rt-PA; Recombinant Tissue Plasminogen Activator
Non-reperfusion cohort; Patients who arrived or were admitted to the hospital within4.5 hours of symptom onset and did not receive any reperfusion treatment

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
All-cause Mortality at 1 Year (Percentage of Patients With Modified Rankin Scale (mRS) Score =6)	The modified Rankin Scale (mRS) is used for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. The scale runs from 0-6, from 'perfect health without symptoms' to 'death'. 0 - No symptoms.; - No significant disability. Able to carry out all usual activities, despite some symptoms.; - Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities.; - Moderate disability. Requires some help, but able to walk unassisted.; - Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted.; - Severe disability. Requires constant nursing care and attention, bedridden, incontinent.; - Dead.	Up to 1 year.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Percentage of Patients With Functional Independence (mRS Score 0 to 2) at 1 Year	The modified Rankin Scale (mRS) is used for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. The scale runs from 0-6, from 'perfect health without symptoms' to 'death'. 0 - No symptoms.; - No significant disability. Able to carry out all usual activities, despite some symptoms.; - Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities.; - Moderate disability. Requires some help, but able to walk unassisted.; - Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted.; - Severe disability. Requires constant nursing care and attention, bedridden, incontinent.; - Dead.	Up to 1 year.
Percentage of Patients With Favourable Outcome (mRS Score 0 to 1) at 1 Year	The modified Rankin Scale (mRS) is used for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. The scale runs from 0-6, from 'perfect health without symptoms' to 'death'. 0 - No symptoms.; - No significant disability. Able to carry out all usual activities, despite some symptoms.; - Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities.; - Moderate disability. Requires some help, but able to walk unassisted.; - Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted.; - Severe disability. Requires constant nursing care and attention, bedridden, incontinent.; - Dead.	Up to 1 year.
Percentage of Patients With mRS Score 5 to 6 at 1 Year	The modified Rankin Scale (mRS) is used for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. The scale runs from 0-6, from 'perfect health without symptoms' to 'death'. 0 - No symptoms.; - No significant disability. Able to carry out all usual activities, despite some symptoms.; - Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities.; - Moderate disability. Requires some help, but able to walk unassisted.; - Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted.; - Severe disability. Requires constant nursing care and attention, bedridden, incontinent.; - Dead.	Up to 1 year.
Distribution of mRS Score at 1 Year	The modified Rankin Scale (mRS) is used for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. Clinicians give the mRS score per the clinical diagnosis/symptom to the patient. There is no calculation for this endpoint or each individual components. The scale runs from 0-6, from 'perfect health without symptoms' to 'death'.	Up to 1 year.

Collaborators and Investigators

• Sponsor: Boehringer Ingelheim

Publications and helpful links

Helpful Links

• Related Info

Study record dates

Study Major Dates

• Study Start (Actual): April 12, 2022
• Primary Completion (Actual): November 30, 2022
• Study Completion (Actual): November 30, 2022

Study Registration Dates

• First Submitted: May 25, 2022
• First Submitted That Met QC Criteria: May 25, 2022
• First Posted (Actual): May 27, 2022

Study Record Updates

• Last Update Posted (Actual): October 16, 2024
• Last Update Submitted That Met QC Criteria: October 14, 2024
• Last Verified: October 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Stroke
• Other Study ID Numbers: 0135-0350

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

IPD Plan Description

Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g. studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization).

For more details refer to: https://www.mystudywindow.com/msw/datatransparency

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No