Stroke Clinical Trial
Official title:
A Randomized, Blank-controlled, Open Label Study of the Safety and Efficacy of Propranolol in Reducing Stroke Associated Pneumonia and Urinary Tract Infection
Stroke-associated pneumonia (SAP) is one of the important risk factors influencing poor outcomes and death in stroke patients. Over the past two decades, accumulating evidence suggests that post-stroke brain injury mobilizes the adrenergic system, which induces post-stroke immunosuppression and SAP. This study is designed to test the safety and efficacy of an adrenergic β-receptor blocker, propranolol, with or without combination of antibiotics, in reducing SAP in stroke patients. The underlying immune mechanisms will be investigated.
Status | Not yet recruiting |
Enrollment | 45 |
Est. completion date | June 2024 |
Est. primary completion date | June 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 60 Years to 90 Years |
Eligibility | Inclusion Criteria: 1. Age: 60 years older and less than 90 years. 2. Onset of new neurological deficits within 24 hours at the time of randomization and propranolol treatment can be initiated within 24 hours of symptom onset. 3. Clinical signs consistent with the diagnosis of stroke, including impairment of language, motor function, cognition, and/or gaze, vision, or neglect. 4. Initial NIHSS score of 11 or greater or Total GCS score (aggregate of verbal, eye, and motor response scores) of 5 or greater and no more than 12 at time of enrollment. 5. MRI or CT scan confirmed stroke. 6. Inability to tolerate normal diet or fluids because of: a. impaired consciousness levels; b. failed clinical bedside swallowing assessment performed by a trained and qualified assessor; c. "nil orally" orders, nasogastric tubes, modified diet or requiring compensatory feeding techniques. 7. TOAST: Large-artery atherosclerosis. 8. Signed and dated informed consent by the subject, legally authorized representative, or surrogate obtained. Exclusion Criteria: 1. Time of symptom onset that cannot be reliably assessed. 2. Subjects considered as candidates for immediate surgical intervention by the neurosurgery service. 3. Pregnancy or parturition within previous 30 days or active lactation. 4. Coagulation disorders (platelet count less than 50x109/L, elevated baseline APTT or INR>1.3) or use of anti-coagulant drugs within the last 24 hours. 5. Use of beta blockers (propranolol, metoprolol, sotalol, carvedilol, bisoprolol, atenolol, esmolol) or antibiotics within 30 days. 6. Use of reserpine within the last 30 days. 7. Pre-stroke dementia or disability. 8. Admission with any of following signs: 1). Fever>38?; 2). Signs of pneumonia in chest CT scan; 3). White blood cell count>12000 or <4000 /µL; 4). Cough, sputum or dyspnea; 5). Respiratory rate>25. 9. Severe liver, kidney disease, or malignancy, life expectancy is less than 14 days. 10. Bronchial asthma or COPD. 11. Cardiogenic shock. 12. Severe or acute heart failure. 13. Degree II-III atrioventricular block. 14. Sinus bradycardia (heart rate =75/min). 15. Known anergic to propranolol or amoxicillin. 16. Current participation in other interventional clinical trials. 17. Immunosuppressant therapy or known immunosuppression. 18. Inability to undergo neuroimaging with magnetic resonance. |
Country | Name | City | State |
---|---|---|---|
China | Beijing Tiantan Hospital | Beijing | |
China | Tianjin Medical University General Hospital | Tianjin |
Lead Sponsor | Collaborator |
---|---|
Tianjin Medical University General Hospital |
China,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Incidence of pneumonia | Stroke-associated pneumonia diagnosed in accordance to a defined algorithm. | Up to 7 days | |
Secondary | Assessment of clinical outcome by National Institute of Healthy Stroke Scale | National Institute of Healthy Stroke Scale(0-42 score),higher scores mean a worse outcome. | Up to 90 days | |
Secondary | Assessment of clinical outcome by modified Barthel Index | Modified Barthel Index(0-100 score),higher scores mean a better outcome. | Up to 90 days | |
Secondary | Assessment of clinical outcome by modified Rankin Scale | Modified Rankin Scale(0-5 score),higher scores mean a worse outcome. | Up to 90 days | |
Secondary | Assessment of clinical outcome by Glasgow Coma Scale | Glasgow Coma Scale(0-15),higher scores mean a better outcome. | Up to 90 days | |
Secondary | Incidence of urinary tract infection | Urinary tract infection diagnosed with defined criteria. | Up to 14 days | |
Secondary | Incidence of sepsis | Sepsis diagnosed with defined criteria. | Up to 14 days | |
Secondary | Alterations of spleen volume | Spleen volume will be evaluated within 7 days via abdomen CT scan. | Up to 7 days | |
Secondary | Single cell sequencing results of immune cells from blood and bronchoalveolar lavage fluid | Single cell sequencing of immune cells from blood and bronchoalveolar lavage fluid will be conducted at baseline and 7 days after stroke onset. | Up to 7 days | |
Secondary | Concentration of soluble protein in blood and bronchoalveolar lavage fluid | Soluble proteins in blood and bronchoalveolar lavage fluid will be evaluated by O-link at baseline and 7 days after stroke onset | Up to 7 days | |
Secondary | Counts of lymphocytes in blood | Counts of lymphocytes will be evaluated by flow cytometry at baseline, day 3, and day 7 post stroke onset | Up to 7 days |
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