Acute Ischemic StrokeUNITENCT06848894

Efficacy and Safety of Human Urinary Kallidinogenase for Acute Ischemic Stroke Patients Receiving Reperfusion Treatment

A study testing Human urinary kallidinogenase (HUK) in people with Acute Ischemic Stroke, run by Beijing Tiantan Hospital at 1 site in China.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts

Official record

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Trial summary

This study aims to explore the efficacy and safety of Human Urinary Kallidinogenase for acute ischemic stroke patients receiving intravenous thrombolysis and/or endovascular treatment. Read more about this study

Who is it for?: Ages 18 years and older
Conditions the study is for: Acute Ischemic Stroke
What is being tested?: Human urinary kallidinogenase (HUK)
Type of treatment: Injection or infusion
Could I receive a placebo?: Yes, some participants may receive a placebo
How many people: 1,204 participants
Where: 1 siteChina
Study dates: 21 Apr 2025to Dec 2027
Phase: Interventional
Are there results?: Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

Ages 18 years and older
All sexes
No healthy volunteers
Adult, Older adult

Who may be able to join

Age ≥18 years.
Having anterior circulation AIS within 24 hours of onset.
The NIHSS score at enrollment is 4 to 25.
Receiving intravenous recombinant tissue plasminogen activator (rt-PA) or TNK-tPA, or endovascular treatment including intra-arterial thrombolysis, mechanical thrombectomy, or intravenous rt-PA /TNK-tPA bridging endovascular treatment.
Being independent in daily activities (mRS ≤1) before onset.
Patients or their legal representatives are able and willing to sign informed consent forms.

Who cannot join

Having an Alberta Stroke Program Early Computed Tomography Score (ASPECT) score of 6 or less confirmed by preoperational computed tomography scan.
Being already treated with HUK or any drugs containing HUK after onset.
Having an allergy history of HUK or drugs containing HUK, or other drugs and food.
Having a history of coagulation dysfunction, systemic bleeding, or thrombocytopenia; having hemorrhagic diseases at the time of enrollment, including cerebral hemorrhage, subarachnoid hemorrhage, epidural or subdural hematoma, gingival bleeding, gastrointestinal bleeding, dermal ecchymosis, etc; taking anticoagulants including warfarin, rivaroxaban, etc.; or taking heparin within 48 hours after stroke onset.
Taking angiotensin-converting enzyme inhibitor (ACEI) antihypertensive drugs regularly within one week before enrollment, including captopril, enalapril, benazepril, etc.
Having chronic liver disease or liver dysfunction, with elevated ALT/AST (>3.0×ULN ); or having kidney dysfunction or receiving dialysis, with elevated serum creatinine (>2.0×ULN).

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Having severe cardiopulmonary disease that are deemed unsuitable for the study by the investigators.
Having contraindications for intravenous thrombolysis or endovascular treatment, including intra-arterial thrombolysis, mechanical thrombectomy, or intravenous rt-PA /TNK-tPA bridging endovascular treatment.
Having lethal diseases with a life expectancy < 3 months.
Being pregnant or lactating; or women of child-bearing age not taking effective contraception, or having no negative pregnancy test record.
Being unable to complete the study due to mental illness, cognitive or emotional disorder, physical condition, geographical factors, etc.
Participating in another clinical trial currently.
Other conditions that investigators consider he/she is not appropriate to participate in this study.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site

Beijing Tiantan Hospital, Capital Medical University
Beijing, Beijing Municipality, 100070

Other trials in China

About this study

This study aims to explore the efficacy and safety of Human Urinary Kallidinogenase for acute ischemic stroke patients receiving intravenous thrombolysis and/or endovascular treatment.

Read the detailed description

Within 24 hours after symptom onset, eligible participants will be randomly assigned in a 1:1 ratio to the HUK or placebo group, receiving adjunctive HUK or placebo treatment alongside standard intravenous thrombolysis and/or endovascular treatment. All participants will be recommended to continuously inject drugs or placebo for 10 to 14 days according to length of hospitalization.

Intervention group: HUK (0.15 PNA) and sodium chloride injection (100ml), once per day
Control group: placebo (0 PNA) and sodium chloride injection (100ml), once per day The total follow-up duration is 90 days.

Conditions: Acute Ischemic Stroke
Being tested: Human urinary kallidinogenase (HUK), Placebo
Keywords: Human Urinary Kallidinogenase, Acute Ischemic Stroke, Reperfusion Treatment
Medical subject headings: Ischemic Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Human urinary kallidinogenase (HUK)Drug
HUK (0.15 PNA) and sodium chloride injection (100ml), once per day
PlaceboDrug
placebo (0 PNA) and sodium chloride injection (100ml), once per day

Study groups in NCT06848894
Study group	Role	What they receive
Intervention group	Experimental	HUK (0.15 PNA) and sodium chloride injection (100ml), once per day Receives: Drug: Human urinary kallidinogenase (HUK)
Control group	Placebo comparator	placebo (0 PNA) and sodium chloride injection (100ml), once per day Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

Proportion of a favorable outcome (mRS 0-2)
The proportion of a favorable outcome, defined by a modified Rankin Scale (mRS) score ranging from 0 to 2, reflects the percentage of patients who attained a functional status from no symptoms to mild disability, enabling them to perform all pre-stroke activities without assistance.
Measured: at 90 days

Secondary outcomes (9)

Proportion of a favorable outcome (mRS 0-2)
The proportion of a favorable outcome, defined by a modified Rankin Scale (mRS) score ranging from 0 to 2, reflects the percentage of patients who attained a functional status from no symptoms to mild disability, enabling them to perform all pre-stroke activities without assistance.
Measured: at 14 days
Proportion of an excellent outcome (mRS 0-1)
The proportion of an excellent outcome, characterized by a modified Rankin Scale (mRS) score of 0 to 1, represents the percentage of patients who achieved a functional status from no symptoms to no significant disability despite symptoms, allowing them to resume all pre-stroke activities without any aid.
Measured: at 90 days
Distribution of mRS score
The distribution of modified Rankin Scale (mRS) scores provides a comprehensive overview of the functional outcomes across a patient population, categorizing the degree of disability from no symptoms (score 0) to severe disability or death (score 6).
Measured: at 90 days
Improvement of NIHSS score
The improvement of the National Institutes of Health Stroke Scale (NIHSS) score serves as a quantifiable measure of neurological recovery, reflecting the reduction in stroke-related deficits and the enhancement of patient functional capabilities over time. Minimum Score: 0 (no stroke symptoms) Maximum Score: 42 (severe stroke) Higher NIHSS scores indicate more severe stroke symptoms and are associated with worse outcomes.Lower NIHSS scores indicate milder stroke symptoms and are associated with better outcomes.
Measured: at 14 days
Risk of recurrent symptomatic stroke
The risk of recurrent symptomatic stroke quantifies the probability of a subsequent stroke event with clinical manifestations, providing a critical measure for assessing the long-term efficacy of stroke prevention strategies and the ongoing vulnerability of the patient population.
Measured: within 90 days
Risk of recurrent symptomatic ischemic stroke
The risk of recurrent symptomatic ischemic stroke delineates the likelihood of a subsequent ischemic stroke event accompanied by clinical symptoms, serving as a pivotal indicator for evaluating the effectiveness of secondary prevention measures and the persistent threat of cerebral ischemia in affected individuals.
Measured: within 90 days
Risk of combined vascular events
The risk of combined vascular events encompasses the probability of experiencing any major vascular incident, such as stroke, myocardial infarction, or vascular death, offering a comprehensive metric for assessing the overall burden of vascular disease and the aggregate impact of therapeutic interventions on cardiovascular health.
Measured: within 90 days
Improvement of EQ-5D-5L
The improvement of EQ-5D-5L(EuroQol 5-Dimension 5-Level) reflects an enhancement in health-related quality of life, as measured by gains across five dimensions-mobility, self-care, usual activities, pain/discomfort, and anxiety/depression-on a five-level severity scale, indicating a positive shift in the patient's overall health state and well-being.
Minimum Score: 0 (worst imaginable health state) Maximum Score: 100 (best imaginable health state) For the descriptive system, a lower score (closer to 11111) indicates better health-related quality of life, while a higher score (closer to 55555) indicates worse health-related quality of life.
For the VAS, a higher score (closer to 100) indicates better self-rated health, while a lower score (closer to 0) indicates worse self-rated health.
Measured: at 90 days
Improvement of MOCA
The improvement of the Montreal Cognitive Assessment (MoCA) score signifies an enhancement in cognitive function, encompassing domains such as attention, memory, language, and executive functions, thereby indicating a positive progression in the patient's cognitive status and potential recovery from cognitive impairment.
Minimum Score: 0 (severe cognitive impairment) Maximum Score: 30 (no cognitive impairment) Higher MoCA scores indicate better cognitive function. Lower MoCA scores indicate worse cognitive function.
Measured: at 90 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

21 Apr 2025Dec 2027

First posted27 Feb 2025
Study start21 Apr 2025
Primary completionDec 2026 (estimated)
Study completionDec 2027 (estimated)

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Publications (24)Papers the sponsor has linked to this study.
Other trials for Acute Ischemic StrokeStudies of the same condition, open and under way.
More trials run by Beijing Tiantan HospitalThe sponsor's other registered studies.
What the trial phases meanHow a treatment moves from first tests in people to approval.

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design

Study type: Interventional
Phase: Phase N/A
Primary purpose: Treatment
Allocation: Randomised
Intervention model: Parallel groups
Masking: Quadruple blind
Who is masked: Participant, Care provider, Investigator, Outcomes assessor
Enrolment: 1,204 participants (estimated)

IDs, dates and publications

ClinicalTrials.gov ID: NCT06848894
Sponsor's protocol ID: KY2024-320-04
Acronym: UNITE
Status last verified: Sep 2026
First submitted: 20 Feb 2025
Last updated: 21 Sep 2026
Results posted: No
Data monitoring committee: Yes
FDA-regulated drug: No
FDA-regulated device: No
Individual data sharing: No

Publications

Wang Y, Xu J, Zhao X, Wang D, Wang C, Liu L, Wang A, Meng X, Li H, Wang Y. Association of hypertension with stroke recurrence depends on ischemic stroke subtype. Stroke. 2013 May;44(5):1232-7. doi: 10.1161/STROKEAHA.111.000302. Epub 2013 Feb 26.
PubMed 23444308
Pan Y, Li Z, Li J, Jin A, Lin J, Jing J, Li H, Meng X, Wang Y, Wang Y. Residual Risk and Its Risk Factors for Ischemic Stroke with Adherence to Guideline-Based Secondary Stroke Prevention. J Stroke. 2021 Jan;23(1):51-60. doi: 10.5853/jos.2020.03391. Epub 2021 Jan 31.
PubMed 33600702
Emberson J, Lees KR, Lyden P, Blackwell L, Albers G, Bluhmki E, Brott T, Cohen G, Davis S, Donnan G, Grotta J, Howard G, Kaste M, Koga M, von Kummer R, Lansberg M, Lindley RI, Murray G, Olivot JM, Parsons M, Tilley B, Toni D, Toyoda K, Wahlgren N, Wardlaw J, Whiteley W, del Zoppo GJ, Baigent C, Sandercock P, Hacke W; Stroke Thrombolysis Trialists' Collaborative Group. Effect of treatment delay, age, and stroke severity on the effects of intravenous thrombolysis with alteplase for acute ischaemic stroke: a meta-analysis of individual patient data from randomised trials. Lancet. 2014 Nov 29;384(9958):1929-35. doi: 10.1016/S0140-6736(14)60584-5. Epub 2014 Aug 5.
PubMed 25106063
Asadi H, Dowling R, Yan B, Wong S, Mitchell P. Advances in endovascular treatment of acute ischaemic stroke. Intern Med J. 2015 Aug;45(8):798-805. doi: 10.1111/imj.12652.
PubMed 25443686
Berkhemer OA, Fransen PS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJ, van Walderveen MA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama a Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle LJ, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach HZ, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Majoie CB, Dippel DW; MR CLEAN Investigators. A randomized trial of intraarterial treatment for acute ischemic stroke. N Engl J Med. 2015 Jan 1;372(1):11-20. doi: 10.1056/NEJMoa1411587. Epub 2014 Dec 17.
PubMed 25517348
Goyal M, Demchuk AM, Menon BK, Eesa M, Rempel JL, Thornton J, Roy D, Jovin TG, Willinsky RA, Sapkota BL, Dowlatshahi D, Frei DF, Kamal NR, Montanera WJ, Poppe AY, Ryckborst KJ, Silver FL, Shuaib A, Tampieri D, Williams D, Bang OY, Baxter BW, Burns PA, Choe H, Heo JH, Holmstedt CA, Jankowitz B, Kelly M, Linares G, Mandzia JL, Shankar J, Sohn SI, Swartz RH, Barber PA, Coutts SB, Smith EE, Morrish WF, Weill A, Subramaniam S, Mitha AP, Wong JH, Lowerison MW, Sajobi TT, Hill MD; ESCAPE Trial Investigators. Randomized assessment of rapid endovascular treatment of ischemic stroke. N Engl J Med. 2015 Mar 12;372(11):1019-30. doi: 10.1056/NEJMoa1414905. Epub 2015 Feb 11.
PubMed 25671798
Campbell BC, Mitchell PJ, Kleinig TJ, Dewey HM, Churilov L, Yassi N, Yan B, Dowling RJ, Parsons MW, Oxley TJ, Wu TY, Brooks M, Simpson MA, Miteff F, Levi CR, Krause M, Harrington TJ, Faulder KC, Steinfort BS, Priglinger M, Ang T, Scroop R, Barber PA, McGuinness B, Wijeratne T, Phan TG, Chong W, Chandra RV, Bladin CF, Badve M, Rice H, de Villiers L, Ma H, Desmond PM, Donnan GA, Davis SM; EXTEND-IA Investigators. Endovascular therapy for ischemic stroke with perfusion-imaging selection. N Engl J Med. 2015 Mar 12;372(11):1009-18. doi: 10.1056/NEJMoa1414792. Epub 2015 Feb 11.
PubMed 25671797
Saver JL, Goyal M, Bonafe A, Diener HC, Levy EI, Pereira VM, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, Baxter BW, Devlin TG, Lopes DK, Reddy VK, du Mesnil de Rochemont R, Singer OC, Jahan R; SWIFT PRIME Investigators. Stent-retriever thrombectomy after intravenous t-PA vs. t-PA alone in stroke. N Engl J Med. 2015 Jun 11;372(24):2285-95. doi: 10.1056/NEJMoa1415061. Epub 2015 Apr 17.
PubMed 25882376
Zi W, Qiu Z, Li F, Sang H, Wu D, Luo W, Liu S, Yuan J, Song J, Shi Z, Huang W, Zhang M, Liu W, Guo Z, Qiu T, Shi Q, Zhou P, Wang L, Fu X, Liu S, Yang S, Zhang S, Zhou Z, Huang X, Wang Y, Luo J, Bai Y, Zhang M, Wu Y, Zeng G, Wan Y, Wen C, Wen H, Ling W, Chen Z, Peng M, Ai Z, Guo F, Li H, Guo J, Guan H, Wang Z, Liu Y, Pu J, Wang Z, Liu H, Chen L, Huang J, Yang G, Gong Z, Shuai J, Nogueira RG, Yang Q; DEVT Trial Investigators. Effect of Endovascular Treatment Alone vs Intravenous Alteplase Plus Endovascular Treatment on Functional Independence in Patients With Acute Ischemic Stroke: The DEVT Randomized Clinical Trial. JAMA. 2021 Jan 19;325(3):234-243. doi: 10.1001/jama.2020.23523.
PubMed 33464335
Yang P, Zhang Y, Zhang L, Zhang Y, Treurniet KM, Chen W, Peng Y, Han H, Wang J, Wang S, Yin C, Liu S, Wang P, Fang Q, Shi H, Yang J, Wen C, Li C, Jiang C, Sun J, Yue X, Lou M, Zhang M, Shu H, Sun D, Liang H, Li T, Guo F, Ke K, Yuan H, Wang G, Yang W, Shi H, Li T, Li Z, Xing P, Zhang P, Zhou Y, Wang H, Xu Y, Huang Q, Wu T, Zhao R, Li Q, Fang Y, Wang L, Lu J, Li Y, Fu J, Zhong X, Wang Y, Wang L, Goyal M, Dippel DWJ, Hong B, Deng B, Roos YBWEM, Majoie CBLM, Liu J; DIRECT-MT Investigators. Endovascular Thrombectomy with or without Intravenous Alteplase in Acute Stroke. N Engl J Med. 2020 May 21;382(21):1981-1993. doi: 10.1056/NEJMoa2001123. Epub 2020 May 6.
PubMed 32374959
Wang H, Zi W, Hao Y, Yang D, Shi Z, Lin M, Wang S, Liu W, Wang Z, Liu X, Guo F, Liu Y, Xu G, Xiong Y, Liu X; ACTUAL Investigators. Direct endovascular treatment: an alternative for bridging therapy in anterior circulation large-vessel occlusion stroke. Eur J Neurol. 2017 Jul;24(7):935-943. doi: 10.1111/ene.13311. Epub 2017 May 11.
PubMed 28493511
Ye Q, Zhai F, Chao B, Cao L, Xu Y, Zhang P, Han H, Wang L, Xu B, Chen W, Wen C, Wang S, Wang R, Zhang L, Jiao L, Liu S, Zhu YC, Wang LD. Rates of intravenous thrombolysis and endovascular therapy for acute ischaemic stroke in China between 2019 and 2020. Lancet Reg Health West Pac. 2022 Feb 22;21:100406. doi: 10.1016/j.lanwpc.2022.100406. eCollection 2022 Apr.
PubMed 35243459
Shen H, Killingsworth MC, Bhaskar SMM. Comprehensive Meta-Analysis of Futile Recanalization in Acute Ischemic Stroke Patients Undergoing Endovascular Thrombectomy: Prevalence, Factors, and Clinical Outcomes. Life (Basel). 2023 Sep 26;13(10):1965. doi: 10.3390/life13101965.
PubMed 37895347
Wang A, Jia B, Zhang X, Huo X, Chen J, Gui L, Cai Y, Guo Z, Han Y, Peng Z, Jing P, Chen Y, Liu Y, Yang Y, Wang F, Sun Z, Li T, Sun H, Yuan H, Shao H, Gao L, Zhang P, Wang F, Cao X, Shi W, Li C, Yang J, Zhang H, Wang F, Deng J, Liu Y, Deng W, Song C, Chen H, He L, Zhao H, Li X, Yang H, Zhou Z, Wang Y, Miao Z; BAST Investigators. Efficacy and Safety of Butylphthalide in Patients With Acute Ischemic Stroke: A Randomized Clinical Trial. JAMA Neurol. 2023 Aug 1;80(8):851-859. doi: 10.1001/jamaneurol.2023.1871.
PubMed 37358859
Ling L, Hou Q, Xing S, Yu J, Pei Z, Zeng J. Exogenous kallikrein enhances neurogenesis and angiogenesis in the subventricular zone and the peri-infarction region and improves neurological function after focal cortical infarction in hypertensive rats. Brain Res. 2008 Apr 24;1206:89-97. doi: 10.1016/j.brainres.2008.01.099. Epub 2008 Mar 19.
PubMed 18353282

Interested in taking part?

The sponsor has not listed a contact. The official record may have more details.

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

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Study at a glance

From the registry record, last updated by the sponsor on 21 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.

Official title: Efficacy and Safety of Human Urinary Kallidinogenase for Acute Ischemic Stroke Patients Receiving Reperfusion Treatment
ClinicalTrials.gov ID: NCT06848894
Acronym / sponsor ID: UNITE / KY2024-320-04
Conditions: Acute Ischemic Stroke
Keywords: Human Urinary Kallidinogenase, Acute Ischemic Stroke, Reperfusion Treatment
Study type: Interventional
Recruitment status: Enrolling by invitation
Enrolment: 1,204 participants (estimated)
Lead sponsor: Beijing Tiantan HospitalUniversity, hospital or other
Study start: 21 Apr 2025 (actual)
Primary completion: Dec 2026 (estimated)
Study completion: Dec 2027 (estimated)
First posted: 27 Feb 2025 (actual)
Results: Not posted in the source record

Clinical summary

The research question as the sponsor registered it. This describes what the study plans to test, not what it found.

This study aims to explore the efficacy and safety of Human Urinary Kallidinogenase for acute ischemic stroke patients receiving intravenous thrombolysis and/or endovascular treatment.

Detailed description

Intervention group: HUK (0.15 PNA) and sodium chloride injection (100ml), once per day
Control group: placebo (0 PNA) and sodium chloride injection (100ml), once per day The total follow-up duration is 90 days.

Study design

Primary purpose: Treatment
Allocation: Randomised
Intervention model: Parallel groups
Masking: Quadruple blind (participant, care provider, investigator, outcomes assessor)
Number of arms: 2

Arm	Type	Receives
Intervention group	Experimental	Drug: Human urinary kallidinogenase (HUK)HUK (0.15 PNA) and sodium chloride injection (100ml), once per day
Control group	Placebo comparator	Drug: Placeboplacebo (0 PNA) and sodium chloride injection (100ml), once per day

Who may qualify

Ages: 18 years and older
Sex: All
Healthy volunteers: Not accepted
Age groups: Adult, Older adult

Key inclusion criteria (6 listed)

Age ≥18 years.
Having anterior circulation AIS within 24 hours of onset.
The NIHSS score at enrollment is 4 to 25.
Receiving intravenous recombinant tissue plasminogen activator (rt-PA) or TNK-tPA, or endovascular treatment including intra-arterial thrombolysis, mechanical thrombectomy, or intravenous rt-PA /TNK-tPA bridging endovascular treatment.
Being independent in daily activities (mRS ≤1) before onset.

Key exclusion criteria (13 listed)

Having an Alberta Stroke Program Early Computed Tomography Score (ASPECT) score of 6 or less confirmed by preoperational computed tomography scan.
Being already treated with HUK or any drugs containing HUK after onset.
Having an allergy history of HUK or drugs containing HUK, or other drugs and food.
Having a history of coagulation dysfunction, systemic bleeding, or thrombocytopenia; having hemorrhagic diseases at the time of enrollment, including cerebral hemorrhage, subarachnoid hemorrhage, epidural or subdural hematoma, gingival bleeding, gastrointestinal bleeding, dermal ecchymosis, etc; taking anticoagulants including warfarin, rivaroxaban, etc.; or taking heparin within 48 hours after stroke onset.
Taking angiotensin-converting enzyme inhibitor (ACEI) antihypertensive drugs regularly within one week before enrollment, including captopril, enalapril, benazepril, etc.

Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.

Interventions

Intervention	Type	Arms
Human urinary kallidinogenase (HUK)HUK (0.15 PNA) and sodium chloride injection (100ml), once per day	Drug	Intervention group
Placeboplacebo (0 PNA) and sodium chloride injection (100ml), once per day	Drug	Control group

Primary outcome

Proportion of a favorable outcome (mRS 0-2)
Time frame: at 90 days
The proportion of a favorable outcome, defined by a modified Rankin Scale (mRS) score ranging from 0 to 2, reflects the percentage of patients who attained a functional status from no symptoms to mild disability, enabling them to perform all pre-stroke activities without assistance.

9 secondary outcomes

Proportion of a favorable outcome (mRS 0-2)
Time frame: at 14 days
Proportion of an excellent outcome (mRS 0-1)
Time frame: at 90 days
Distribution of mRS score
Time frame: at 90 days
Improvement of NIHSS score
Time frame: at 14 days
Risk of recurrent symptomatic stroke
Time frame: within 90 days
Risk of recurrent symptomatic ischemic stroke
Time frame: within 90 days
Risk of combined vascular events
Time frame: within 90 days
Improvement of EQ-5D-5L
Time frame: at 90 days
Improvement of MOCA
Time frame: at 90 days

Results and safety

This study is still under way. Results are not available in the source record yet.

Research links

Official record on ClinicalTrials.govLast updated by the sponsor 21 Sep 2026.
Background: PubMed 23444308Wang Y, Xu J, Zhao X, Wang D, Wang C, Liu L, Wang A, Meng X, Li H, Wang Y. Association of hypertension with stroke recurrence depends on ischemic stroke subtype. Stroke. 2013 May;44(5):1232-7. doi: 10.1161/STROKEAHA.111.000302. Epub 2013 Feb 26.
Background: PubMed 33600702Pan Y, Li Z, Li J, Jin A, Lin J, Jing J, Li H, Meng X, Wang Y, Wang Y. Residual Risk and Its Risk Factors for Ischemic Stroke with Adherence to Guideline-Based Secondary Stroke Prevention. J Stroke. 2021 Jan;23(1):51-60. doi: 10.5853/jos.2020.03391. Epub 2021 Jan 31.
Background: PubMed 25106063Emberson J, Lees KR, Lyden P, Blackwell L, Albers G, Bluhmki E, Brott T, Cohen G, Davis S, Donnan G, Grotta J, Howard G, Kaste M, Koga M, von Kummer R, Lansberg M, Lindley RI, Murray G, Olivot JM, Parsons M, Tilley B, Toni D, Toyoda K, Wahlgren N, Wardlaw J, Whiteley W, del Zoppo GJ, Baigent C, Sandercock P, Hacke W; Stroke Thrombolysis Trialists' Collaborative Group. Effect of treatment delay, age, and stroke severity on the effects of intravenous thrombolysis with alteplase for acute ischaemic stroke: a meta-analysis of individual patient data from randomised trials. Lancet. 2014 Nov 29;384(9958):1929-35. doi: 10.1016/S0140-6736(14)60584-5. Epub 2014 Aug 5.
Background: PubMed 25443686Asadi H, Dowling R, Yan B, Wong S, Mitchell P. Advances in endovascular treatment of acute ischaemic stroke. Intern Med J. 2015 Aug;45(8):798-805. doi: 10.1111/imj.12652.
Background: PubMed 25517348Berkhemer OA, Fransen PS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJ, van Walderveen MA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama a Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle LJ, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach HZ, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Majoie CB, Dippel DW; MR CLEAN Investigators. A randomized trial of intraarterial treatment for acute ischemic stroke. N Engl J Med. 2015 Jan 1;372(1):11-20. doi: 10.1056/NEJMoa1411587. Epub 2014 Dec 17.
Background: PubMed 25671798Goyal M, Demchuk AM, Menon BK, Eesa M, Rempel JL, Thornton J, Roy D, Jovin TG, Willinsky RA, Sapkota BL, Dowlatshahi D, Frei DF, Kamal NR, Montanera WJ, Poppe AY, Ryckborst KJ, Silver FL, Shuaib A, Tampieri D, Williams D, Bang OY, Baxter BW, Burns PA, Choe H, Heo JH, Holmstedt CA, Jankowitz B, Kelly M, Linares G, Mandzia JL, Shankar J, Sohn SI, Swartz RH, Barber PA, Coutts SB, Smith EE, Morrish WF, Weill A, Subramaniam S, Mitha AP, Wong JH, Lowerison MW, Sajobi TT, Hill MD; ESCAPE Trial Investigators. Randomized assessment of rapid endovascular treatment of ischemic stroke. N Engl J Med. 2015 Mar 12;372(11):1019-30. doi: 10.1056/NEJMoa1414905. Epub 2015 Feb 11.
Background: PubMed 25671797Campbell BC, Mitchell PJ, Kleinig TJ, Dewey HM, Churilov L, Yassi N, Yan B, Dowling RJ, Parsons MW, Oxley TJ, Wu TY, Brooks M, Simpson MA, Miteff F, Levi CR, Krause M, Harrington TJ, Faulder KC, Steinfort BS, Priglinger M, Ang T, Scroop R, Barber PA, McGuinness B, Wijeratne T, Phan TG, Chong W, Chandra RV, Bladin CF, Badve M, Rice H, de Villiers L, Ma H, Desmond PM, Donnan GA, Davis SM; EXTEND-IA Investigators. Endovascular therapy for ischemic stroke with perfusion-imaging selection. N Engl J Med. 2015 Mar 12;372(11):1009-18. doi: 10.1056/NEJMoa1414792. Epub 2015 Feb 11.
Background: PubMed 25882376Saver JL, Goyal M, Bonafe A, Diener HC, Levy EI, Pereira VM, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, Baxter BW, Devlin TG, Lopes DK, Reddy VK, du Mesnil de Rochemont R, Singer OC, Jahan R; SWIFT PRIME Investigators. Stent-retriever thrombectomy after intravenous t-PA vs. t-PA alone in stroke. N Engl J Med. 2015 Jun 11;372(24):2285-95. doi: 10.1056/NEJMoa1415061. Epub 2015 Apr 17.
Background: PubMed 33464335Zi W, Qiu Z, Li F, Sang H, Wu D, Luo W, Liu S, Yuan J, Song J, Shi Z, Huang W, Zhang M, Liu W, Guo Z, Qiu T, Shi Q, Zhou P, Wang L, Fu X, Liu S, Yang S, Zhang S, Zhou Z, Huang X, Wang Y, Luo J, Bai Y, Zhang M, Wu Y, Zeng G, Wan Y, Wen C, Wen H, Ling W, Chen Z, Peng M, Ai Z, Guo F, Li H, Guo J, Guan H, Wang Z, Liu Y, Pu J, Wang Z, Liu H, Chen L, Huang J, Yang G, Gong Z, Shuai J, Nogueira RG, Yang Q; DEVT Trial Investigators. Effect of Endovascular Treatment Alone vs Intravenous Alteplase Plus Endovascular Treatment on Functional Independence in Patients With Acute Ischemic Stroke: The DEVT Randomized Clinical Trial. JAMA. 2021 Jan 19;325(3):234-243. doi: 10.1001/jama.2020.23523.
Background: PubMed 32374959Yang P, Zhang Y, Zhang L, Zhang Y, Treurniet KM, Chen W, Peng Y, Han H, Wang J, Wang S, Yin C, Liu S, Wang P, Fang Q, Shi H, Yang J, Wen C, Li C, Jiang C, Sun J, Yue X, Lou M, Zhang M, Shu H, Sun D, Liang H, Li T, Guo F, Ke K, Yuan H, Wang G, Yang W, Shi H, Li T, Li Z, Xing P, Zhang P, Zhou Y, Wang H, Xu Y, Huang Q, Wu T, Zhao R, Li Q, Fang Y, Wang L, Lu J, Li Y, Fu J, Zhong X, Wang Y, Wang L, Goyal M, Dippel DWJ, Hong B, Deng B, Roos YBWEM, Majoie CBLM, Liu J; DIRECT-MT Investigators. Endovascular Thrombectomy with or without Intravenous Alteplase in Acute Stroke. N Engl J Med. 2020 May 21;382(21):1981-1993. doi: 10.1056/NEJMoa2001123. Epub 2020 May 6.
Background: PubMed 28493511Wang H, Zi W, Hao Y, Yang D, Shi Z, Lin M, Wang S, Liu W, Wang Z, Liu X, Guo F, Liu Y, Xu G, Xiong Y, Liu X; ACTUAL Investigators. Direct endovascular treatment: an alternative for bridging therapy in anterior circulation large-vessel occlusion stroke. Eur J Neurol. 2017 Jul;24(7):935-943. doi: 10.1111/ene.13311. Epub 2017 May 11.
Background: PubMed 35243459Ye Q, Zhai F, Chao B, Cao L, Xu Y, Zhang P, Han H, Wang L, Xu B, Chen W, Wen C, Wang S, Wang R, Zhang L, Jiao L, Liu S, Zhu YC, Wang LD. Rates of intravenous thrombolysis and endovascular therapy for acute ischaemic stroke in China between 2019 and 2020. Lancet Reg Health West Pac. 2022 Feb 22;21:100406. doi: 10.1016/j.lanwpc.2022.100406. eCollection 2022 Apr.
Individual participant dataSharing planned: No

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Referral and contact

AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.

Wang Yilong, MD, PhD study chair

Beijing Tiantan Hospital

Wang Tingting, MD study director

Beijing Tiantan Hospital

1 site in 1 country: see every site and its status.

Questions about this trial

What is this clinical trial studying?

A study testing Human urinary kallidinogenase (HUK) in people with Acute Ischemic Stroke, run by Beijing Tiantan Hospital at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 21 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of a favorable outcome (mRS 0-2) (time frame: at 90 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06848894, which also lists 24 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Sep 2026.