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NCT Number: NCT03431909

Evaluation Of HUK in Acute Stroke Patients: MRS and CTP

Background: Acute ischemic stroke (AIS) is a leading cause of morbidity and mortality worldwide. Human urinary kallidinogenase (HUK), a glycoprotein extracted from male urine currently used in China for enhancing cerebral perfusion5, plays a neuroprotective role including promoting angiogenesis, enhancing cerebral perfusion and suppressing the inflammatory response in animals and in patients with respect to regulating the kallikrein-kinin system. In previous clinical research, neurological function scores and cerebral perfusion scans were largely used to evaluate the efficiency of HUK. However, the mechanisms of Further well-conducted, randomized controlled studies using HUK are currently lacking.

Objective: To assess the Human urinary kallidinogenase effects on brain metabolite and cerebral perfusion changes using magnetic resonance spectroscopy and CT perfusion in patients with AIS.

Methods: The investigators plan to do a single-centre randomized, double-blind, controlled trial in which ischemic stroke patients will be randomized to treatment with either HUK or regular treatment within 72 hours of symptom onset. The study includes two MRS and two CTP scannings (before and after 2 week treatment) for all randomized subjects.

The endpoints will include improvement of the NIH Stroke Scale (NIHSS) score from baseline, modified Rankin scale (mRS) score and Barthel index at 14 days.

EvHUKMRS will test the following hypotheses:

1. HUK enhanced N-acetylaspartate (NAA) and cerebral blood flow (CBF) 14 days after treatment compared with control group. 2. HUK group compared to control group when administered 72 hours after onset of AIS improves recovery and functional outcome as assessed by improvement of NIHSS score , mRS score and BI score on day 14 post-stroke.

A positive result will have a significant impact in the management of AIS and pave the way for future studies aimed at finding the optimal dose and formulation of HUK for treating acute ischemic stroke.

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Key information

About this study

A)Specific Primary Objective:

  • To determine if HUK, administered within 72 hours of AIS onset is superior to regular treatment in improving NAA values and CBF on day 14 post stroke.

B) Specific Secondary Objectives:

  • To determine if HUK, administered within 72 hours of AIS onset is superior to regular treatment in reducing neurological deficit and improving functional outcome on day 14 post stroke.

Recruitment of study subjects:

Acute ischemic stroke patients admitted to the Neurology department in XWh (Xuan hospital) during the study period who are eligible to participate in this study based on criteria stated above will be invited to participate in this study.

The time window for enrolment will be within 72 hours of symptom onset. All eligible patients will be identified by the ward and on-call Neurology/Medical teams and referred to the study research assistants or investigators; who will then screen the patient for participation in this trial.

STUDY INTERVENTION The assigned treatment 0.15 PNA units of HUK injection or regular treatment will be administered once daily for 14 consecutive days soon after informed consent is taken and the patient is enrolled into the study.

Follow-up Assessment:

The neurologic deficits, global functional abilities and level of handicap will be scored using the NIH Stroke Scale (NIHSS) and the modified Rankin scale (mRS) at baseline and on day 14(plus or minus 14 days).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • ages ranging from 18 to 80 years
  • onset time less than 72 h, NIHSS score ≥4;

Exclusion criteria

  • TIA
  • patients with contraindication of venous thrombolysis
  • patients with encephalic bleeding disorder
  • patients with incomplete hepatic and renal function
  • patients with a medical history of peptic ulcer, haemorrhagic stroke, brain tumour or brain trauma
  • patients who could not coordinate with an MRS scan and
  • patients with vertebral basilar artery system infarction.

Treatment and study plan

Human urinary kallidinogenase (HUK)

Drug

Human urinary kallidinogenase can transform kininogen to bradykinin (kinin) and vasodilatory factors (kallidin)

aspirin® , clopidogrel® , atorvastatin®

Drug

Patients in control group will receive foundation treatment, including aspirin® (100 mg/d), clopidogrel® (75 mg/d), and atorvastatin® (20 mg/d) for 14 days

Primary outcomes

  1. N-acetylaspartate as measured on Magnetic Resonance Spectrum study on admission

    Time frame: 14 days

    NAA Admit

  2. Creatine as measured on Magnetic Resonance Spectrum study on admission

    Time frame: 14 days

    Cr Admit

  3. Cholineas measured on Magnetic Resonance Spectrum study on admission

    Time frame: 14 days

    Cho

Secondary outcomes

  1. The proportion of mordified Rankin Scale

    Time frame: 14 days

  2. The proportion of NIHSS

    Time frame: 14 days

  3. The proportion of mRS

    Time frame: 14 days

  4. Cerebral blood flow as measured on CT perfusion study on admission

    Time frame: 14 days

    CBF Admit

  5. Cerebral blood volume as measured on CT perfusion study on admission

    Time frame: 14 days

    CBV Admit

  6. Mean transit time as measured on CT perfusion study on admission

    Time frame: 14 days

    MTT Admit

  7. Time to peak as measured on CT perfusion study on admission

    Time frame: 14 days

    TTP Admit

Sponsors and collaborators

Lead sponsor

Xuanwu Hospital, Beijing

Other

Registry information

Official study title

Evaluation Of Human Urinary Kallidinogenase in Acute Stroke Patients: Magnetic Resonance Spectrum and CT Perfusion

Important dates

Study start
2014
Primary completion
2016
Study completion
2016
First posted
Feb 13, 2018
Registry last updated
Feb 13, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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