NCT04102956

Brief Summary

Acute cerebral infarction is a common type of ischemic stroke, causing brain dysfunction in patients with high morbidity and disability. With the changes in people's diet, lifestyle patterns and population aging, the incidence of acute cerebral infarction has increased year by year, which has become an important cause of disability and death in middle-aged and elderly patients. The human urinary kallidinogenase (HUK) was used in China in the management of acute ischemic stroke (AIS) in recent years. However, the mechanism of HUK on AIS has not been systematically investigated. This study aimed to assess the effect of HUK on motor functional outcome and relative corticospinal tract recovery in the patients with AIS. Diffusion tensor imaging(DTI) and diffusion tensor tractography(DTT) have all been used to observe features of cerebral white matter fibrous structures. In addition, diffusion tensor tractography which is used to trace fiber bundle and evaluate white matter fiber bundle integrity and direction is the only non-invasive imaging method to display the corticospinal tract in vivo.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Jul 2017

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2017

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2019

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 25, 2019

Completed
24 days until next milestone

First Submitted

Initial submission to the registry

September 18, 2019

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 25, 2019

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

March 1, 2021

Completed
Last Updated

March 1, 2021

Status Verified

February 1, 2021

Enrollment Period

1.7 years

First QC Date

September 18, 2019

Results QC Date

December 19, 2020

Last Update Submit

February 26, 2021

Conditions

Outcome Measures

Primary Outcomes (7)

  • Myelin Basic Protein (MBP) Comparison Between the Two Groups Before and After Treatment

    The effect of Kallikrein on myelin basic protein (MBP) was determined by comparing the changes of MBP before and after treatment between the Kallikrein+Standard treatment group and the standard treatment group.

    before (baseline) and after treatment (14 ± 5 days)

  • Comparison of Vascular Endothelial Growth Factor (VEGF) Before and After Treatment Between the Kallikrein+Standard Treatment Group and Standard Treatment Group

    The effect of Kallikrein on vascular endothelial growth factor (VEGF) was judged by comparing the changes of VEGF before and after treatment in the Kallikrein+Standard treatment group and the standard treatment group.

    before (baseline) and after treatment (14 ± 5 days)

  • Changes of Barthel Index(BI) Before and After Treatment in the Two Groups

    The Barthel Index(BI) is 0 to 100 points. The higher the score, the better the patient's motor function and behavior. The effect of Kallikrein on Barthel Index was judged by comparing the changes of Barthel Index before and after treatment in the Kallikrein+Standard treatment group and the standard treatment group.

    before (baseline) and after treatment (14 ± 5 days)

  • Changes in Muscle Strength of the Kallikrein+Standard Treatment Group and the Standard Treatment Group Before and After Treatment

    Using the recording method of grade 6 muscle strength of 0-5 grade, grade 0 means no muscle contraction, grade 5 means normal muscle strength. The effect of Kallikrein on muscle strength was judged by comparing the changes of muscle strength before and after treatment in the Kallikrein+Standard treatment group and the standard treatment group.

    before (baseline) and after treatment (14 ± 5 days)

  • Changes of National Institute of Health Stroke Scale(NIHSS) Before and After Treatment in the Two Groups

    The NIHSS score is 0 to 42 points. The higher the score, the more severe the nerve damage. The change of NIHSS score is calculated as the value at the earlier time point minus the value at the later time point, that is, the value at the time of admission minus the value after the end of treatment, and then the comparison between groups is performed to obtain the current result.

    before (baseline) and after treatment (14 ± 5 days)

  • Change of Fractional Anisotropy Valuev Decline Rate† (FA Decline Rate†)

    The FA value is used to express the anisotropy, which indicates the anisotropic component of water molecules accounts for the total value of diffusion tensor,and ranges from 0 to 1, the closer the value is to 1, the better the fiber bundle integrity. †FA decline rate = (FA contralateral- FA ipsilateral) / FA contralateral, Used to compare the FA decline rate† of the two groups after treatment. A more substantial decrease of FA values is believed to represent the most severely ischemic tissue.

    After 14 ± 5 days of treatment

  • Change of Apparent Diffusion Coefficient Value Decline Rate‡(ADC Decline Rate‡)

    The ADC value of normal brain tissue is in the range of 0.7-0.9×10﹣³m㎡/s. When the brain tissue is acutely affected, it is mostly decreased, and it is mostly increased in subacute or chronic disease. The upper and lower limits of abnormal changes in ADC value are 0.4-2.5×10﹣³m㎡/s. ‡ ADC decline rate = (ADCcontralateral- ADCipsilateral) / ADCcontralateral;Used to compare the ADC decline rate‡ of the two groups after treatment. A more substantial decrease of ADC values is believed to represent the most severely ischemic tissue.

    After 14 ± 5 days of treatment

Study Arms (2)

Kallikrein+Standard treatment group

EXPERIMENTAL

The Kallikrein+Standard treatment group was given kallikrein through intravenous injection to treatment for 0.15 PNA/day+standard treatment medicine based on the guidelines for the treatment of acute ischemic stroke for 14 ± 5 days.

Drug: Kallikrein

Standard treatment group

NO INTERVENTION

The Standard treatment group was only given standard treatment medicine based on the guidelines for the treatment of acute ischemic stroke for 14 ± 5 days.

Interventions

HUK has been approved by China's State Food and Drug Administration as a state category I new drug for the treatment of stroke patients. Based on the available evidence, HUK injection ameliorates neurological deficits and improves long-term outcomes.

Also known as: Human urinary kallidinogenase
Kallikrein+Standard treatment group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years old ≤ age \<80 years old; Within 72 hours of onset; Diagnosed as acute cerebral infarction, and confirmed by magnetic resonance imaging as an acute infarct in the unilateral corticospinal tract; The patient's onset muscle strength grade \<4; No history of cerebral infarction or residual physical activity disorder; No other intracranial lesions; Patients or their legal representatives voluntarily Sign the informed consent form;

You may not qualify if:

  • Intracranial hemorrhagic disease: cerebral hemorrhage, subarachnoid hemorrhage, etc.; Transient ischemic attack; Intravenous thrombolysis and interventional thrombectomy; Serious physical illness affects limb movement before enrollment ; Apply other drugs with nutritional nerves and regeneration during the study period; Unstable vital signs, severe liver and kidney diseases or malignant tumors; Incomprehensible or incapable of obeying the research procedure or being unable to follow up due to mental illness, cognitive or emotional disorders;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Second hospital of hebei medical university

Shijiazhuang, Hebei, 050000, China

Location

Related Publications (1)

  • Li P, Lu H, Shi X, Yan J, Zhou L, Yang J, Wang B, Zhao Y, Liu L, Zhu Y, Xu L, Yang X, Su X, Yang Y, Zhang T, Guo L, Liu X. Protective effects of human urinary kallidinogenase against corticospinal tract damage in acute ischemic stroke patients. Neuroreport. 2024 May 8;35(7):431-438. doi: 10.1097/WNR.0000000000002028. Epub 2024 Mar 12.

MeSH Terms

Conditions

Stroke

Interventions

Kallikreins

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Serine EndopeptidasesEndopeptidasesPeptide HydrolasesHydrolasesEnzymesEnzymes and CoenzymesSerine ProteasesBlood Coagulation FactorsBlood ProteinsProteinsAmino Acids, Peptides, and ProteinsBiological Factors

Results Point of Contact

Title
Xiaoyun Liu PhD
Organization
Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.

Study Officials

  • Xiaoyun Liu, Prf.

    The Second Hospital of Hebei Medical University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Deputy Director of Neurology Department

Study Record Dates

First Submitted

September 18, 2019

First Posted

September 25, 2019

Study Start

July 1, 2017

Primary Completion

March 1, 2019

Study Completion

August 25, 2019

Last Updated

March 1, 2021

Results First Posted

March 1, 2021

Record last verified: 2021-02

Locations