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REmifentanil And Dexmedetomidine for EarlY Intensive Blood Pressure Lowering in ICH. (READY-ICH)

Efficacy and Safety of an Early Intensive Blood Pressure-Lowering Strategy Using Remifentanil and Dexmedetomidine in Patients With Spontaneous Intracerebral Hemorrhage: A Multicenter, Prospective, Superiority, Randomized Controlled Trial

Intracerebral hemorrhage (ICH) remains the most devastating subtype of stroke, with a case fatality rate of approximately 40% at one months post-onset, imposing a particularly heavy medical and economic burden on low- and middle-income countries. Studies have shown that poor prognosis in ICH patients is associated with acute blood pressure elevation and hematoma expansion after onset. Blood pressure control during the acute phase is considered a potentially key therapeutic strategy for improving outcomes in ICH patients; however, no clinical study has yet demonstrated a clear advantage of any specific antihypertensive agent or combination. Previous researchers have confirmed that the combined use of remifentanil and dexmedetomidine, while providing effective analgesia, sedation, and anti-sympathetic effects, could reduce dramatic fluctuations in blood pressure and heart rate, thereby facilitating more stable blood pressure reduction and potentially further improving functional outcomes in ICH patients. The investigators plan to conduct a multicenter, prospective, randomized controlled, superiority clinical trial within mainland China to evaluate the efficacy and safety of an early intensive blood pressure-lowering strategy using remifentanil combined with dexmedetomidine for improving functional prognosis in acute ICH patients. This study aims to provide evidence-based medical support for the use of remifentanil combined with dexmedetomidine in early intensive blood pressure-lowering in patients with ICH, to enrich the available options for early intensive blood pressure-lowering strategies, to improve the adverse prognosis of patients.

Studieöversikt

Status

Har inte rekryterat ännu

Detaljerad beskrivning

Spontaneous intracerebral hemorrhage refers to non-traumatic bleeding within the brain parenchyma caused by the rupture of large or small arteries, veins, or capillaries, which may secondarily extend into the ventricles or subarachnoid space. As one of the most devastating subtypes of stroke, intracerebral hemorrhage has a 30-day mortality rate of approximately 40%, with only 12-39% of patients regaining functional independence. Studies have shown that poor outcomes in intracerebral hemorrhage patients are closely associated with acute elevated blood pressure and hematoma expansion after onset, highlighting the urgent need to optimize clinical interventions. Therefore, understanding the pathophysiological mechanisms of acute blood pressure changes in intracerebral hemorrhage and refining early intensive antihypertensive strategies are of great clinical importance for improving patient outcomes. Previous researchers have demonstrated that a remifentanil and dexmedetomidine-based antihypertensive strategy enables rapid and stable blood pressure reduction. The investigators now intend to further investigate the efficacy and safety of this regimen compared to guideline-based standard treatment in improving patient outcomes.

This multi-center, prospective, open-label, randomized controlled, superiority clinical trial will be planned to be conducted in mainland China. It will primarily enroll patients with acute intracerebral hemorrhage who present within 6 hours of symptom onset and have an initial systolic blood pressure of 150 mmHg or higher. Patients will be excluded if they have contraindications to urgent intensive blood pressure-lowering therapy, if the hemorrhage is secondary to other etiologies, or if they have a high risk of death within 24 hours. Based on sample size calculation, a total of 1,116 patients with acute intracerebral hemorrhage will be enrolled and allocated in a 1:1 ratio to either the intervention group or the control group through randomization. Participants assigned to the control group will receive conventional treatment according to the "Guidelines for the Management of Spontaneous Intracerebral Hemorrhage" published by the American Heart Association and the American Stroke Association. Participants assigned to the intervention group will receive early intensive blood pressure-lowering therapy with remifentanil combined with dexmedetomidine, in addition to the guideline-based standard treatment. Specifically, remifentanil and dexmedetomidine will be administered as soon as possible within 30 minutes after enrollment. The primary outcome measure of this study is the modified Rankin Scale score at 90 days after treatment. Secondary outcome measures include blood pressure and blood glucose levels during the treatment period, the incidence of hematoma expansion, and the length of stay in the intensive care unit, among others. The results of this study are expected to fill the evidence gap regarding specific antihypertensive combinations in improving functional outcomes, and to provide high-quality evidence for future guideline updates.

Studietyp

Interventionell

Inskrivning (Beräknad)

1116

Fas

  • Inte tillämpbar

Kontakter och platser

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Studiekontakt

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  1. Age ≥ 18 years.
  2. Acute intracerebral hemorrhage confirmed by non-contrast head computed tomography.
  3. Symptom onset ≤ 6 h before randomization.
  4. At least two systolic blood pressure ≥ 150 mmHg separated by > 2 min prior to randomization.
  5. Admission to a monitored unit capable of active acute care (e.g., acute stroke unit, emergency department, or intensive care unit).
  6. Written informed consent provided by the patient or legally authorized representative.

Exclusion Criteria:

  1. Contraindication to intensive blood-pressure lowering (e.g., severe stenosis of carotid, vertebral, or cerebral arteries; Moyamoya disease; Takayasu arteritis; critical aortic stenosis).
  2. Clear evidence that the hemorrhage is secondary to a structural brain abnormality (arteriovenous malformation, aneurysm, tumor, trauma, infarct) or recent thrombolysis.
  3. Ischemic stroke within the preceding 30 days.
  4. Very high probability of death within 24 h based on clinical and/or radiologic criteria.
  5. Known advanced dementia or pre-stroke disability (pre- modified Rankin Scale score ≥ 3).
  6. Coagulopathy due to medication or hematologic disorder.
  7. Comorbid conditions that would interfere with outcome assessment or follow-up (e.g., active malignancy, end-stage organ failure).
  8. Known hypersensitivity to remifentanil or dexmedetomidine.
  9. Pregnancy or lactation.
  10. Concurrent participation in another investigational drug or device trial.
  11. Patient or legally authorized representative unwilling or unable to provide informed consent, or judged unlikely to comply with study procedures or follow-up.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Guideline-based standard care using remifentanil and dexmedetomidine
Based on the standard blood pressure treatment protocol from the 2022 American Heart Association/American Stroke Association "Guidelines for the Management of Spontaneous Intracerebral Hemorrhage," the administration of remifentanil and dexmedetomidine will be initiated within 1 hour after randomization. The treatment will be continued for 7 days, or until the patient is transferred out of the intensive care unit if this occurs before day 7.
Participants will receive remifentanil and dexmedetomidine within 30 minutes after treatment initiation, and the treatment will be continued for 7 days or until discharge from the intensive care unit. The starting dose of remifentanil is 0.025 μg/kg/min, which will be adjusted during infusion based on the patient's blood pressure and analgesic requirements. For non-mechanically ventilated patients, the dose adjustment range is 0.025-0.05 μg/kg/min; for mechanically ventilated patients, the dose adjustment range is 0.025-0.15 μg/kg/min. The starting dose of dexmedetomidine is 0.2 μg/kg/h, which will be adjusted during infusion based on the patient's blood pressure and sedation requirements, with a dose adjustment range of 0.2-0.7 μg/kg/h.
Aktiv komparator: Guideline-based standard care
Management will follow the 2022 American Heart Association/American Stroke Association "Guidelines for the Management of Patients with Spontaneous Intracerebral Hemorrhage".
Participants will receive conventional treatment in accordance with the "Guidelines for the Management of Spontaneous Intracerebral Hemorrhage" published by the American Heart Association and the American Stroke Association.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The modified Rankin Scale score at 90 days post-treatment
Tidsram: 90 days post-treatment
The modified Rankin Scale score at 90 days post-treatment will be analyzed as an ordinal outcome (scores 0-6). The modified Rankin Scale is a standardized global 7-level disability scale, where a score of 0 or 1 indicates a favorable outcome (no symptoms or no significant disability), scores 2-5 represent increasing levels of disability and dependency, and a score of 6 indicates death.
90 days post-treatment

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Poor Functional Outcome
Tidsram: 90 days post-treatment
A modified Rankin Scale score of 3-6 at 90 days is defined as a poor outcome, including death and severe disability. Death is defined as modified Rankin Scale 6, and severe disability is defined as modified Rankin Scale 3-5. Death and severe disability will be combined and reported as a composite poor outcome measure, and will also be analyzed separately.
90 days post-treatment
Blood Pressure Management
Tidsram: 24 hours, 3 days, and 7 days post-treatment
(1) 1-hour blood pressure control rate: Defined as at least twice systolic blood pressure measurements <140 mmHg within the first hour after treatment initiation. (2) Mean blood pressure values: The average blood pressure values within 24 hours, 3 days, and 7 days post-treatment will be calculated for each group using all available measurements. (3) Blood pressure variability: Coefficient of Variation and Average Real Variability will be calculated based on all blood pressure measurements obtained within 24 hours, 3 days, and 7 days post-treatment. (4) Use of antihypertensive agents: The need for antihypertensive medications within 24 hours, 3 days, and 7 days post-treatment will be recorded. Intravenous and oral/enteral medications will be documented separately, including the number of agents used if applicable.
24 hours, 3 days, and 7 days post-treatment
Glycemic Control
Tidsram: 24 hours, 3 days, and 7 days post-treatment
(1) Mean blood glucose values: The average glucose values within 24 hours, 3 days, and 7 days post-treatment will be calculated for each group using all available measurements. (2) Hypoglycemia rate: Hypoglycemia is defined as a blood glucose level <2.8 mmol/L in non-diabetic patients and <4.0 mmol/L in diabetic patients. The actual glucose value at the time of hypoglycemia will also be recorded. (3) Insulin use: The need for insulin and the total insulin dosage within 24 hours, 3 days, and 7 days post-treatment will be documented.
24 hours, 3 days, and 7 days post-treatment
National Institutes of Health Stroke Scale
Tidsram: 7 days
National Institutes of Health Stroke Scale at 7 days will be evaluated.
7 days
Glasgow Coma Scale
Tidsram: 7 days
Glasgow Coma Scale at 7 days will be evaluated.
7 days
Hematoma Expansion
Tidsram: 24 hours and 7 days
Hematoma expansion is defined as an absolute increase in hematoma volume ≥12.5 mL or a relative increase >33% from baseline (V₁) to 24-hour of 7 days follow-up computed tomography (V₂), where V₁ is the baseline hematoma volume and V₂ is the volume at 24 hours and 7 days.
24 hours and 7 days
Quality of Life Assessment
Tidsram: 90 days
The EuroQol Five-Dimension Three-Level Questionnaire56 will be used to assess health-related quality of life at 90 days. The EuroQol 5-dimension 3-level (EQ-5D-3L) patient-reported questionnaire covers 5 domains of health-related quality of life: mobility, selfcare, usual activities, pain and discomfort, and anxiety and depression. Each domain has 3 graded levels of response: no problems, moderate, problems, or extreme problems. Scores from these levels are combined to provide an overall health utility score that was calculated according to population norms in China. A score of 1 represents perfect health, a score of 0 represents death, and negative scores represent health states considered to be worse than death.
90 days
Duration of Mechanical Ventilation
Tidsram: 7 days
For patients requiring mechanical ventilation, the start and end times of ventilation in the intensive care unit will be recorded, and the duration will be calculated in hours.
7 days
Intensive care unit Length of Stay
Tidsram: 7 days
The dates of intensive care unit admission and discharge will be recorded, and the length of stay will be calculated in days.
7 days
Hospitalization Status at 90 Days
Tidsram: 90 days
Whether the patient remains hospitalized at 90 days will be documented.
90 days

Samarbetspartners och utredare

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Samarbetspartners

Utredare

  • Huvudutredare: Hong Yang, MD, The Third Affiliated Hospital of Southern Medical University

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

31 juli 2026

Primärt slutförande (Beräknad)

1 oktober 2028

Avslutad studie (Beräknad)

31 december 2028

Studieregistreringsdatum

Först inskickad

28 juni 2026

Först inskickad som uppfyllde QC-kriterierna

5 juli 2026

Första postat (Faktisk)

10 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

10 juli 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

5 juli 2026

Senast verifierad

1 juli 2026

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

This study plans to make study protocol available to individuals or institutions in need after the completion of participant enrollment and data collation. Such requests can be made by contacting the principal investigator.

Tidsram för IPD-delning

It is expected to be made available in June 2029 and will remain accessible for a period of 5 years.

Kriterier för IPD Sharing Access

Contacte to principal investigator.

IPD-delning som stöder informationstyp

  • STUDY_PROTOCOL

Läkemedels- och apparatinformation, studiedokument

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