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Efficacy and Safety of QD202 in Participants With Acute Ischemic Stroke Undergoing Thrombolysis Excluding Endovascular Thrombectomy

6 maggio 2026 aggiornato da: Shanghai QuietD Biotechnology Co., Ltd.

A Multicentre, Randomized, Double-blinded, Placebo-controlled Phase II Clinical Trial to Evaluate the Safety, Pharmacokinetic Profile, and Efficacy of QD202 Injection in Patients With Acute Ischemic Stroke Undergoing Thrombolysis

This is a randomized, double-blinded, placebo-controlled study investigating the safety and efficacy of QD202 injection in patients with acute ischemic stroke undergoing thrombolysis excluding endovascular thrombectomy. Up to 120 male and female patients with acute ischemic stroke undergoing thrombolysis excluding endovascular thrombectomy will be dosed with QD202 injection or placebo as a 60 minute intravenous infusion after completion of the thrombolysis procedure on Day 1-5 of the study period. Subjects will undergo interim procedures at Day 7 or the day of discharge, Day 30, and end-of-study procedures on Day 90.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

120

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

  • Cina
    • Guangdong
      • Meizhou, Guangdong, Cina
        • Reclutamento
        • Meizhou People's Hospital
        • Contatto:
        • Investigatore principale:
          • Tongguo Wei
    • Henan
      • Luoyang, Henan, Cina
        • Reclutamento
        • Luoyang Central Hospital
        • Contatto:
        • Investigatore principale:
          • Zhihui Duan
      • Nanyang, Henan, Cina
        • Reclutamento
        • Nanshi Hospital of Nanyang
        • Contatto:
        • Investigatore principale:
          • Zhaolong Peng
    • Jilin
      • Changchun, Jilin, Cina
        • Reclutamento
        • Jilin Province People's Hospital
        • Contatto:
        • Investigatore principale:
          • Zongshu Li
      • Meihekou, Jilin, Cina
        • Reclutamento
        • Meihe Hospital the First Hospital of Jilin University
        • Investigatore principale:
          • Rui Wang
        • Contatto:
    • Liaoning
      • Benxi, Liaoning, Cina
        • Reclutamento
        • Benxi Central Hospital
        • Contatto:
        • Investigatore principale:
          • Chengguang Song
      • Fuxin, Liaoning, Cina
        • Reclutamento
        • General Hospital of Fuxin Mining Industry Group of Liaoning Health Industry Group
        • Contatto:
        • Investigatore principale:
          • Lianqun Fu
      • Shengyang, Liaoning, Cina
        • Reclutamento
        • Central Hospital Affiliated to Shenyang Medical College
        • Contatto:
        • Investigatore principale:
          • Runhui Li
      • Shenyang, Liaoning, Cina
        • Reclutamento
        • General Hospital of Northern Theater Command
        • Contatto:
        • Investigatore principale:
          • Huisheng Chen
    • Shandong
      • Linyi, Shandong, Cina
        • Reclutamento
        • Linyi People's Hospital
        • Investigatore principale:
          • Ziran Wang
        • Contatto:
      • Weifang, Shandong, Cina
        • Reclutamento
        • Weifang People's Hospital
        • Investigatore principale:
          • Li Zhou
        • Contatto:
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Cina
        • Reclutamento
        • Shanghai Tenth People's Hospital
        • Contatto:
        • Investigatore principale:
          • Jianliang Fu
      • Shanghai, Shanghai Municipality, Cina
        • Reclutamento
        • Huashan Hospital Fudan University
        • Investigatore principale:
          • Liang Chen
        • Investigatore principale:
          • Jing Zhang
        • Contatto:
        • Investigatore principale:
          • Xin Cheng
    • Shanxi
      • Linfen, Shanxi, Cina
        • Reclutamento
        • Linfen Central Hospital
        • Investigatore principale:
          • Hongguo Dai
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • 1. Subjects aged 18-85 years (inclusive), regardless of gender;
  • 2. Diagnosed with acute ischemic stroke according to the Chinese Guidelines for the Diagnosis and Treatment of Acute Ischemic Stroke (2023);
  • 3. Time from stroke onset ≤ 24 hours (Onset time is calculated from the time stroke symptoms appear. If the stroke occurred during sleep or if the time of symptom onset cannot be accurately determined due to aphasia, impaired consciousness, or other reasons, the time the subject was last known to be normal should be used as the onset time);
  • 4. Pre-stroke modified Rankin Scale (mRS) score ≤ 1;
  • 5. After this event and prior to thrombolysis, NIHSS score is between 6 and 20 (inclusive), and the sum of scores on NIHSS Item 5 (motor arm) and Item 6 (motor leg) is ≥ 2;
  • 6. Planned for or have already undergone thrombolytic therapy;
  • 7. Female subjects of childbearing potential must have a negative serum pregnancy test and report no sexual activity within 14 days prior to screening. Subjects of childbearing potential (female or male) must agree to have no plans for pregnancy or sperm donation throughout the study period and are willing to use at least one effective method of contraception;
  • 8. The subject or their legal guardian voluntarily signs the informed consent form (ICF).

Exclusion Criteria:

  • 1. Allergy to any component of QD202 or the placebo.
  • 2. Intracranial hemorrhage detected on cranial computed tomography (CT), including hemorrhagic stroke (e.g., epidural hematoma, intracranial hematoma, intraventricular hemorrhage, subarachnoid hemorrhage) or hemorrhagic transformation of the current cerebral infarction. Subjects with mere microbleeds may be considered for inclusion at the investigator's discretion. Hemorrhage occurring after thrombolytic therapy, as a complication of the treatment and not classified as hemorrhagic stroke, may also be considered for inclusion at the investigator's discretion.
  • 3. Transient ischemic attack (TIA).
  • 4. Poorly controlled blood pressure despite active treatment (hypertension: systolic blood pressure ≥220 mmHg and/or diastolic blood pressure ≥120 mmHg; hypotension: systolic blood pressure ≤90 mmHg and/or diastolic blood pressure ≤40 mmHg).
  • 5. Severe hyperglycemia/hypoglycemia: blood glucose ≥400 mg/dL (22.2 mmol/L) or ≤50 mg/dL (2.8 mmol/L).
  • 6. Heart rate <50 beats per minute and/or >120 beats per minute; second- or third-degree atrioventricular block, sinoatrial block, or sinus arrest; history within 6 months prior to screening of heart failure (NYHA Class III or IV), unstable angina, acute myocardial infarction, or severe arrhythmia (including but not limited to rapid atrial fibrillation, atrial flutter, frequent premature beats, supraventricular or ventricular tachycardia).
  • 7. Severe impairment of consciousness after the current event and prior to thrombolysis: NIHSS level of consciousness (item 1a) score ≥2.
  • 8. History of severe psychiatric disorder or severe dementia.
  • 9. History of depression or anxiety, if the investigator deems participation in this clinical trial inappropriate.
  • 10. Subjects unsuitable for thrombolytic therapy, or those who have undergone or are planned to undergo endovascular interventional therapy.
  • 11. Use of therapeutic neuroprotective agents after stroke onset, including commercially available edaravone, edaravone dexborneol injection concentrate and sublingual tablets, ginkgolides, ginkgo diterpene lactone meglumine, nimodipine, gangliosides, citicoline, piracetam, oxiracetam, butylphthalide, cinepazide maleate injection, mouse nerve growth factor, potential neuroprotective Cerebrolysin (cerebroprotein hydrolysate), deproteinized calf blood extractives injection, ulinastatin, etc. (except mannitol used to reduce intracranial pressure).
  • 12. Concurrent malignancy diagnosed previously and currently undergoing anti-tumor therapy.
  • 13. History of severe systemic disease with an estimated life expectancy of <90 days.
  • 14. Diagnosed with severe active liver disease (e.g., acute hepatitis, chronic active hepatitis, cirrhosis) or alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2.0 times the upper limit of normal (ULN).
  • 15. Diagnosed with severe active kidney disease, renal insufficiency, or estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m².
  • 16. Bleeding tendency, including platelet count (PLT) <75.0×10⁹/L, or history of major bleeding within 3 months prior to the current event.
  • 17. Major surgery within 4 weeks prior to screening, if the investigator assesses it may affect neurological function scores or 90-day survival.
  • 18. Alcohol dependence, drug abuse, substance addiction, or propensity for addiction.
  • 19. Participation in another clinical trial involving investigational drugs, vaccines, or medical devices within 3 months prior to screening.
  • 20. Any contraindication (e.g., cardiac pacemaker or other metal implants, claustrophobia) preventing or hindering CT or MRI examinations.
  • 21. Allergy to contrast agents.
  • 22. Chronic moderate to severe respiratory disease.
  • 23. Pregnant or breastfeeding women.
  • 24. Any other condition deemed by the investigator to make the subject unsuitable for participation in this clinical trial.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Triplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: QD202, 5 milligram (mg)
Participants will receive 100 mg of QD202 on Day 1 and 5 mg of QD202 daily from Day 2 to Day 5.
Droga: QD202
QD202 is a 19 amino acid peptide that consists of a 8 amino acid active domain and an 11 amino acid domain that enables the peptide to cross the blood-brain barrier.
Sperimentale: QD202, 10 milligram (mg)
Participants will receive 100 mg of QD202 on Day 1 and 10 mg of QD202 daily from Day 2 to Day 5.
Droga: QD202
QD202 is a 19 amino acid peptide that consists of a 8 amino acid active domain and an 11 amino acid domain that enables the peptide to cross the blood-brain barrier.
Comparatore placebo: Placebo Comparator
Participants will receive matching placebo daily from Day 1 to Day 5.
Droga: Placebo
The placebo matches the investigational drug in appearance.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Safety and Tolerance
Lasso di tempo: Through study completion, an average of 90 days
To evaluate the safety and tolerability of intravenous infusion of QD202 in patients with acute ischemic stroke undergoing thrombolysis. Incidence of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs); clinically significant changes from baseline in laboratory tests, 12-lead electrocardiograms, vital signs, etc.
Through study completion, an average of 90 days

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Modified Rankin Scale (mRS)
Lasso di tempo: Day 30 and 90
Proportion of subjects achieving independent functioning as defined as a score of 0-1 or 0-2 on the mRS at Day 30 and Day 90.
Day 30 and 90
National Institutes of Health Stroke Scale (NIHSS)
Lasso di tempo: Day 7 or day of discharge
Proportion of subjects achieving a good outcome as defined as a score of 0-1 on the NIHSS at Day 7 or day of discharge.
Day 7 or day of discharge
National Institutes of Health Stroke Scale (NIHSS)
Lasso di tempo: Baseline up to Day 7 or day of discharge
Proportion of subjects achieving a good outcome as defined as a decrease of 4 or more points from baseline on the NIHSS at Day 7 or day of discharge.
Baseline up to Day 7 or day of discharge
National Institutes of Health Stroke Scale (NIHSS)
Lasso di tempo: Baseline up to Day 90
Change in NIHSS score from baseline to Day 7 or day of discharge, Day 30, and Day 90.
Baseline up to Day 90
Barthel Index (BI)
Lasso di tempo: Day 30 and 90
Proportion of subjects with a Barthel Index (BI) score ≥ 95 at Day 30 and Day 90 of treatment.
Day 30 and 90
The maximum plasma concentration (C[max])
Lasso di tempo: Baseline up to Day 5
The C[max] is the maximum observed plasma concentration and will be determined for QD202.
Baseline up to Day 5
Time to reach the maximum plasma concentration (T[max])
Lasso di tempo: Baseline up to Day 5
Time to reach maximum observed plasma concentration (T[max]) of QD202.
Baseline up to Day 5
Area under the plasma concentration-time curve from time zero to last time of quantifiable concentration (AUC[0-t])
Lasso di tempo: Baseline up to Day 5
Area under the concentration-time curve from time zero to last time of quantifiable concentration of QD202.
Baseline up to Day 5
Terminal elimination half-life (t1/2)
Lasso di tempo: Baseline up to Day 5
Apparent terminal elimination half-life of QD202.
Baseline up to Day 5
Drug Clearance (CL)
Lasso di tempo: Baseline up to Day 5
The efficiency of irreversible elimination of QD202 from the body, typically measured in volume per time.
Baseline up to Day 5

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Cerebral Infarct Volume
Lasso di tempo: Baseline up to Day 7 or day of discharge
To measure the change in cerebral infarct volume from baseline in patients with acute ischemic stroke following intravenous infusion of QD202, as assessed by brain imaging.
Baseline up to Day 7 or day of discharge

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Shanghai QuietD Biotechnology Co., Ltd.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

14 ottobre 2025

Completamento primario (Stimato)

1 agosto 2026

Completamento dello studio (Stimato)

1 dicembre 2026

Date di iscrizione allo studio

Primo inviato

30 aprile 2026

Primo inviato che soddisfa i criteri di controllo qualità

6 maggio 2026

Primo Inserito (Effettivo)

12 maggio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

12 maggio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

6 maggio 2026

Ultimo verificato

1 maggio 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • IST-003-202508
  • CTR20253923 (Identificatore di registro: Center for Drug Evaluation, NMPA)

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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