在分布性休克患者中评价血管紧张素Ⅱ注射液升压治疗的有效性和安全性的多中心、随机、双盲、安慰剂对照的Ⅲ期临床试验

注册号:

Registration number:

ChiCTR2500108297 

最近更新日期:

Date of Last Refreshed on:

2025-08-27 19:40:42 

注册时间:

Date of Registration:

2025-08-27 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

在分布性休克患者中评价血管紧张素Ⅱ注射液升压治疗的有效性和安全性的多中心、随机、双盲、安慰剂对照的Ⅲ期临床试验

Public title:

Angiotensin II versus placebo for VAsopressor TherApy in distRibutive shock: a multicenter, randomized, phase 3 trial: AVATAR trial?

注册题目简写:

AVATAR

English Acronym:

AVATAR

研究课题的正式科学名称:

在分布性休克患者中评价血管紧张素Ⅱ注射液升压治疗的有效性和安全性的多中心、随机、双盲、安慰剂对照的Ⅲ期临床试验

Scientific title:

Evaluation of the efficacy and safety of Angiotensin II injection for vasopressor therapy in patients with distributive shock: A multicenter, randomized, double-blind, placebo-controlled phase III clinical trial

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

师瑞 

研究负责人:

师瑞 

Applicant:

Rui Shi 

Study leader:

Rui Shi 

申请注册联系人电话:

Applicant telephone:

+86 20 8775 5766

研究负责人电话:

Study leader's
telephone:

+86 20 8775 5766

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

shir28@mail.sysu.edu.cn

研究负责人电子邮件:

Study leader's E-mail:

shir28@mail.sysu.edu.cn

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

广东省广州市越秀区中山二路58号

研究负责人通讯地址:

广东省广州市越秀区中山二路58号

Applicant address:

58 Zhongshan Second Road, Yuexiu District, Guangzhou, Guangdong

Study leader's address:

58 Zhongshan Second Road, Yuexiu District, Guangzhou, Guangdong

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

中山大学附属第一医院

Applicant's institution:

The First Affiliated Hospital, Sun Yat-Sen University

研究负责人所在单位:

中山大学附属第一医院

Affiliation of the Leader:

The First Affiliated Hospital, Sun Yat-Sen University

是否获伦理委员会批准:

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

2025-008-02

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

中山大学附属第一医院临床药物、器械和医疗新技术伦理委员会

Name of the ethic committee:

Ethics Committee of Clinical Drugs, Devices and New Medical Technologies of the First Affiliated Hospital of Sun Yat-sen University

伦理委员会批准日期:

Date of approved by ethic committee:

2025-03-11 00:00:00

伦理委员会联系人:

颜楚荣

Contact Name of the ethic committee:

Yan Churong

伦理委员会联系地址:

广东省广州市越秀区中山二路58号

Contact Address of the ethic committee:

58 Zhongshan Second Road, Yuexiu District, Guangzhou, Guangdong

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 20 8733 0631

伦理委员会联系人邮箱:

Contact email of the ethic committee:

gzsums_iec@163.com

研究实施负责(组长)单位:

中山大学附属第一医院

Primary sponsor:

The First Affiliated Hospital, Sun Yat-Sen University

研究实施负责(组长)单位地址:

广东省广州市越秀区中山二路58号

Primary sponsor's address:

58 Zhongshan Second Road, Yuexiu District, Guangzhou, Guangdong

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

湖北

市(区县):

Country:

China

Province:

Hui Bei

City:

单位(医院):

宜昌人福药业有限责任公司

具体地址:

湖北省宜昌市高新区大连路19号

Institution
hospital:

Yichang Humanwell Pharmaceutical Co., Ltd

Address:

No. 19 Dalian Road, High-tech Zone, Yichang City, Hubei Province, China

经费或物资来源:

宜昌人福药业有限责任公司

Source(s) of funding:

Yichang Humanwell Pharmaceutical Co., Ltd

研究疾病:

分布性休克  

Target disease:

Distributive shock

研究疾病代码:

Target disease code:

研究类型:

干预性研究

Study type:

Interventional study

研究所处阶段:

III期临床试验 

Study phase:

3

研究设计:

随机平行对照 

Study design:

Parallel 

研究目的:

主要目的: 本研究旨在证明分布性休克受试者,接受血管紧张素Ⅱ注射液治疗对比安慰剂治疗能够显著提高第3小时血压有反应的受试者比例。 次要目的: 评价血管紧张素Ⅱ注射液治疗分布性休克的安全性。  

Objectives of Study:

Primary Objective: This study aims to demonstrate that in subjects with distributive shock, treatment with Angiotensin II injection significantly increases the proportion of subjects achieving a blood pressure response at the 3-hour mark compared to placebo treatment. Secondary Objective: To evaluate the safety of Angiotensin II injection in the treatment of distributive shock.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

Inclusion criteria

排除标准:

1) 已知或怀疑对血管紧张素Ⅱ注射液及其辅料过敏或禁忌者; 2) 烧伤面积>20%总体表面积的患者; 3) 急性冠状动脉综合征且需要介入治疗者; 4) 接受ECMO 治疗的患者; 5) 终末期肝衰竭(MELD评分>30)者; 6) 诊断为哮喘或支气管痉挛的患者; 7) 诊断为急性肠系膜缺血、或疑似急性肠系膜缺血症的患者; 8) 有主动脉夹层或腹主动脉瘤病史/现病史、或高度怀疑患有主动脉夹层或腹主动脉瘤、或诊断为主动脉夹层或腹主动脉瘤的患者; 9) 存在雷诺现象、系统性硬化症或血管痉挛性疾病的患者; 10) 研究医生评估预期寿命≤24 小时者; 11) 存在活动性出血且开始给药前48小时内预期需要输注>4个单位浓缩红细胞的患者; 12) 存在活动性出血且血红蛋白<7g/dL、或存在其他任何连续采血禁忌的患者; 13) 中性粒细胞绝对计数(ANC)<1000个细胞/mm3的患者; 14) 预期在试验用药品给药期间需要进行血液吸附治疗的患者,如灌流、免疫吸附等; 15) 自身免疫性疾病需每日使用≥500mg氢化可的松或等效糖皮质激素的患者; 16) 入选前1个月内作为受试者参加药物或医疗器械临床试验者; 17) 妊娠和/或哺乳期女性; 18) 研究者认为患者情况不稳定或既往患有影响整个研究期间的安全性、或影响研究结果及其解读、或妨碍患者完成整个研究过程的任何疾病。

Exclusion criteria:

1) Known or suspected allergy or contraindication to Angiotensin II injection or its excipients; 2) Patients with burns covering >20% of total body surface area; 3) Patients with acute coronary syndrome requiring interventional therapy; 4) Patients receiving extracorporeal membrane oxygenation (ECMO) therapy; 5) Patients with end-stage liver failure (Model for End-Stage Liver Disease [MELD] score >30); 6) Patients diagnosed with asthma or bronchospasm; 7) Patients diagnosed with acute mesenteric ischemia or suspected acute mesenteric ischemia; 8) Patients with a history or current diagnosis of aortic dissection or abdominal aortic aneurysm, or those highly suspected of having aortic dissection or abdominal aortic aneurysm; 9) Patients with Raynaud’s phenomenon, systemic sclerosis, or vasospastic disorders; 10) Patients assessed by the investigator to have an expected survival of <= 24 hours; 11) Patients with active bleeding who are anticipated to require transfusion of >4 units of packed red blood cells within 48 hours before study drug administration; 12) Patients with active bleeding and hemoglobin <7 g/dL, or those with any other contraindication to continuous blood sampling; 13) Patients with an absolute neutrophil count (ANC) <1000 cells/mm³; 14) Patients expected to require blood adsorption therapy (e.g., hemoperfusion, immunoadsorption) during the study drug administration period; 15) Patients with autoimmune diseases requiring daily use of >= 500 mg hydrocortisone or equivalent glucocorticoids; 16) Patients who participated in another drug or medical device clinical trial within 1 month before enrollment; 17) Pregnant and/or breastfeeding women; 18) Patients deemed by the investigator to be clinically unstable or to have any pre-existing condition that may affect safety during the study, compromise the interpretation of study results, or prevent completion of the study.

研究实施时间:

Study execute time:

From 2024-11-01 00:00:00 To 2026-11-30 00:00:00  

征募观察对象时间:

Recruiting time:

From 2025-09-01 00:00:00 To 2026-11-30 00:00:00

干预措施:

Interventions:

组别:

血管紧张素Ⅱ组

样本量:

107

Group:

Angiotensin Ⅱ Group

Sample size:

干预措施:

第一阶段给药方案:试验用药品开始给药的第0-3小时 该阶段的主要终点为第3小时MAP≥75mmHg 或第3小时MAP较基线升高≥10mmHg的受试者比例,目标MAP为75-84mmHg。试验用药品起始剂量:20 ng/kg/min,经中心静脉导管给药,根据当前MAP,可每5/15min 滴定一次剂量;试验用药品允许剂量1.25~160 ng/kg/min。 在筛选期优化滴定的背景血管活性药,第一阶段背景血管活性药维持剂量恒定,根据MAP滴定试验用药品(血管紧张素II 或安慰剂)。若基于安全性要求或临床医师评估需要对背景血管活性药进行增量,也可滴定背景血管活性药剂量以维持适当的MAP。若背景血管活性药剂量向上滴定,患者则被视为治疗失败,但仍可继续接受试验用药品。 具体的剂量调整为: 1)若受试者的基线MAP≤59mmHg,并在试验用药品开始给药5min后MAP仍≤59mmHg,则将试验用药品剂量增加至80 ng/kg/min,5 分钟后继续观察,若MAP仍≤59mmHg,则将试验用药品增加至100 ng/kg/min(每次增量为20,最大剂量为160ng/kg/min),重复5分钟后观察。若在试验用药品剂量为160 ng/kg/min 下,MAP 仍保持在≤59mmHg,则上调滴定背景血管活性药剂量,同时判定治疗失败。 2)若患者的MAP在60-74mmHg 之间,则开始并滴定试验用药品,15 分钟后继续观察,若MAP仍处在60-74mmHg 之间,则将试验用药品增加10ng/kg/min,直到MAP 达到75-84mmHg 之间;若MAP 下降至≤59mmHg,则按1)中规定进行再次滴定。 3)若患者在研究的前3小时内,MAP≥85mmHg,可按照10 ng/kg/min 减少试验用药品,间隔时间为5分钟,当试验用药品减量至10 ng/kg/min 时,可通过每次减半进一步降低试验用药品剂量,直至达到最小剂量(2.5 ng/kg/min)。若试验用药品的剂量已降至其最低水平(2.5 ng/kg/min),MAP仍≥85mmHg,减停背景血管活性药。在停用背景血管活性药物后,若MAP≥85mmHg,则将试验用药品剂量再次减半至1.25 ng/kg/min。 第二阶段给药方案:试验用药品开始给药的第3-48小时 该阶段的目标MAP应维持在65-70mmHg 之间。规定试验用药品最大给药剂量40ng/kg/min,试验用药品允许剂量1.25-40 ng/kg/min;此阶段在使用试验用药品的同时,可逐步进行背景血管活性药物的减量滴定,以减少对背景血管活性药物的依赖。背景血管活性药物减量滴定方案可根据中心研究者的意见执行。试验用药品具体剂量调整为: 1)若受试者的MAP≥71 mmHg,且受试者正在使用背景血管活性药物,则减量滴定背景血管活性药,直至MAP在65-70mmHg 之间。若背景血管活性药总量已减至最低0.03μg/kg/min 后患者MAP仍≥71mmHg,可对试验用药品进行减量滴定(每次减量为10ng/kg/min),滴定间隔时间为15分钟,直至达到最小剂量2.5 ng/kg/min。若试验用药品已滴定至最小剂量2.5ng/kg/min,MAP仍≥71mmHg,可将试验用药品剂量滴定至1.25ng/kg/min,若MAP 仍≥71 mmHg,可将试验用药品减停。若经研究者评估,受试者在使用背景血管活性药物的基础上,仍需继续使用试验用药品,可重新使用和滴定。 2)若受试者的MAP在65-70mmHg 之间,则试验用药品维持当前剂量不变。若此时试验用药品未达到最高使用剂量,可尝试减量滴定背景血管活性药直至去甲肾上腺素当量总和最低至0.03 μg/kg/min,并根据MAP的变化重新滴定试验用药品。 3)若受试者的MAP在60-64mmHg 之间,则将试验用药品增加10 ng/kg/min,滴定间隔为15 分钟,直到达到MAP在65-70mmHg 之间,若试验用药品已达到最大剂量40ng/kg/min,受试者的MAP仍未达到目标65-70mmHg 之间,则根据中心研究者意见滴定增加背景血管活性药物剂量,滴定间隔同样为15分钟。 4)若受试者的MAP在≤59mmHg,则将试验用药品增加至40 ng/kg/min,滴定间隔为5分钟,若试验用药品增加至最大剂量40 ng/kg/min,受试者的MAP仍未达到目标65-70mmHg 之间,则可根据中心研究者意见滴定增加背景血管活性药物剂量。 第三阶段给药方案:试验用药品开始给药的第48小时-第168小时 在试验用药品开始给药第48小时后,每15min 以不超过10 ng/kg/min 的速度,将试验用药品剂量逐渐减量直至停用,同时由中心研究者根据患者情况自行滴定背景血管活性药物的使用剂量以维持受试者需要的MAP。若经研究者评估,受试者在使用背景血管活性药物的基础上,仍需继续使用试验用药品,则需在试验用药品前一次减量或停药的3 小时内进行试验用药品的重新使用及滴定,试验用药品的滴定及调整方案与第二阶段调整策略相同。所有受试者使用试验用药品总时长不得超过168h(7 天),在最多接受168 小时的试验用药品输注后,将通过每15min 降低10 ng/kg/min 的速度减少试验用药品剂量,直至完全停用。

干预措施代码:

Intervention:

Phase 1 Dosing Regimen: 0-3 hours after initiation of the investigational product The primary endpoint for this phase is the proportion of subjects achieving MAP >= 75 mmHg at hour 3 or an increase in MAP >= 10 mmHg from baseline at hour 3, with a target MAP of 75-84 mmHg. The starting dose of the investigational product is 20 ng/kg/min, administered via central venous catheter. The dose may be titrated every 5/15 minutes based on current MAP. The allowable dose range for the investigational product is 1.25–160 ng/kg/min. During the screening period, background vasoactive agents should be optimally titrated. In Phase 1, the dose of background vasoactive agents should remain constant, and the investigational product (Angiotensin II or placebo) should be titrated based on MAP. If safety concerns or clinical judgment necessitate an increase in background vasoactive agents, their dose may also be adjusted to maintain appropriate MAP. However, if the dose of background vasoactive agents is increased, the patient will be considered a treatment failure but may continue receiving the investigational product. Specific dose adjustments are as follows: 1) If the subject’s baseline MAP is <= 59 mmHg and remains <= 59 mmHg 5 minutes after initiating the investigational product, increase the investigational product dose to 80 ng/kg/min. After another 5 minutes, if MAP remains <= 59 mmHg, increase the dose to 100 ng/kg/min (in increments of 20 ng/kg/min, up to a maximum of 160 ng/kg/min), and reassess after 5 minutes. If MAP remains <= 59 mmHg at 160 ng/kg/min, increase the dose of background vasoactive agents and consider the treatment a failure. 2) If the patient’s MAP is between 60-74 mmHg, initiate and titrate the investigational product as shown in **Table 1**. After 15 minutes, if MAP remains between 60-74 mmHg, increase the investigational product dose by 10 ng/kg/min until MAP reaches 75-84 mmHg. If MAP decreases to <= 59 mmHg, retitrate according to step 1). 3) If the patient’s MAP is >= 85 mmHg within the first 3 hours of the study, reduce the investigational product dose by 10 ng/kg/min every 5 minutes. Once the dose reaches 10 ng/kg/min, further reductions may be made by halving the dose until the minimum dose (2.5 ng/kg/min) is reached. If the investigational product has been reduced to its minimum dose (2.5 ng/kg/min) and MAP remains >= 85 mmHg, decrease or discontinue background vasoactive agents. If MAP remains >= 85 mmHg after discontinuing background vasoactive agents, halve the investigational product dose again to 1.25 ng/kg/min. Phase 2 Dosing Regimen: 3-48 hours after initiation of the investigational product The target MAP for this phase should be maintained between 65-70 mmHg. The maximum allowable dose of the investigational product is 40 ng/kg/min (range: 1.25–40 ng/kg/min). During this phase, background vasoactive agents may be gradually tapered to reduce dependency. The tapering strategy may be adjusted per the investigator’s discretion. Specific dose adjustments are as follows: 1) If the subject’s MAP is >= 71 mmHg and background vasoactive agents are still in use, taper the background agents until MAP stabilizes between 65-70 mmHg. If MAP remains >= 71 mmHg after reducing background vasoactive agents to the minimum dose (0.03 μg/kg/min), decrease the investigational product dose by 10 ng/kg/min every 15 minutes until the minimum dose (2.5 ng/kg/min) is reached. If MAP remains >= 71 mmHg at 2.5 ng/kg/min, reduce the dose to 1.25 ng/kg/min. If MAP remains >= 71 mmHg, discontinue the investigational product. If the investigator deems it necessary to continue the investigational product alongside background vasoactive agents, restart and titrate per 2) If the subject’s MAP is between 65-70 mmHg, maintain the current investigational product dose. If the maximum dose has not been reached, attempt to taper background vasoactive agents until the total norepinephrine-equivalent dose is minimized to 0.03 μg/kg/min, and retitrate the investigational product based on MAP changes. 3) If the subject’s MAP is between 60-64 mmHg, increase the investigational product dose by 10 ng/kg/min every 15 minutes until MAP reaches 65-70 mmHg. If the maximum dose (40 ng/kg/min) is reached without achieving the target MAP, the investigator may increase background vasoactive agents in 15-minute intervals. 4) If the subject’s MAP is <= 59 mmHg, increase the investigational product dose to 40 ng/kg/min in 5-minute intervals. If the maximum dose (40 ng/kg/min) is reached without achieving the target MAP, the investigator may increase background vasoactive agents. Phase 3 Dosing Regimen: 48-168 hours after initiation of the investigational product After 48 hours, taper the investigational product by <= 10 ng/kg/min every 15 minutes until discontinuation, while the investigator adjusts background vasoactive agents to maintain the required MAP. If the investigator determines that the subject still requires the investigational product alongside background agents, it may be restarted and titrated within 3 hours of the last dose reduction or discontinuation, following the Phase 2 titration strategy. The total duration of investigational product administration must not exceed 168 hours (7 days). After 168 hours, discontinue the investigational product by reducing the dose by 10 ng/kg/min every 15 minutes until complete cessation.

Intervention code:

组别:

安慰剂组

样本量:

107

Group:

Placebo Group

Sample size:

干预措施:

第一阶段给药方案:试验用药品开始给药的第0-3小时 该阶段的主要终点为第3小时MAP≥75mmHg 或第3小时MAP较基线升高≥10mmHg的受试者比例,目标MAP为75-84mmHg。试验用药品起始剂量:20 ng/kg/min,经中心静脉导管给药,根据当前MAP,可每5/15min 滴定一次剂量;试验用药品允许剂量1.25~160 ng/kg/min。 在筛选期优化滴定的背景血管活性药,第一阶段背景血管活性药维持剂量恒定,根据MAP滴定试验用药品(血管紧张素II 或安慰剂)。若基于安全性要求或临床医师评估需要对背景血管活性药进行增量,也可滴定背景血管活性药剂量以维持适当的MAP。若背景血管活性药剂量向上滴定,患者则被视为治疗失败,但仍可继续接受试验用药品。 具体的剂量调整为: 1)若受试者的基线MAP≤59mmHg,并在试验用药品开始给药5min后MAP仍≤59mmHg,则将试验用药品剂量增加至80 ng/kg/min,5 分钟后继续观察,若MAP仍≤59mmHg,则将试验用药品增加至100 ng/kg/min(每次增量为20,最大剂量为160ng/kg/min),重复5分钟后观察。若在试验用药品剂量为160 ng/kg/min 下,MAP 仍保持在≤59mmHg,则上调滴定背景血管活性药剂量,同时判定治疗失败。 2)若患者的MAP在60-74mmHg 之间,则开始并滴定试验用药品,15 分钟后继续观察,若MAP仍处在60-74mmHg 之间,则将试验用药品增加10ng/kg/min,直到MAP 达到75-84mmHg 之间;若MAP 下降至≤59mmHg,则按1)中规定进行再次滴定。 3)若患者在研究的前3小时内,MAP≥85mmHg,可按照10 ng/kg/min 减少试验用药品,间隔时间为5分钟,当试验用药品减量至10 ng/kg/min 时,可通过每次减半进一步降低试验用药品剂量,直至达到最小剂量(2.5 ng/kg/min)。若试验用药品的剂量已降至其最低水平(2.5 ng/kg/min),MAP仍≥85mmHg,减停背景血管活性药。在停用背景血管活性药物后,若MAP≥85mmHg,则将试验用药品剂量再次减半至1.25 ng/kg/min。 第二阶段给药方案:试验用药品开始给药的第3-48小时 该阶段的目标MAP应维持在65-70mmHg 之间。规定试验用药品最大给药剂量40ng/kg/min,试验用药品允许剂量1.25-40 ng/kg/min;此阶段在使用试验用药品的同时,可逐步进行背景血管活性药物的减量滴定,以减少对背景血管活性药物的依赖。背景血管活性药物减量滴定方案可根据中心研究者的意见执行。试验用药品具体剂量调整为: 1)若受试者的MAP≥71 mmHg,且受试者正在使用背景血管活性药物,则减量滴定背景血管活性药,直至MAP在65-70mmHg 之间。若背景血管活性药总量已减至最低0.03μg/kg/min 后患者MAP仍≥71mmHg,可对试验用药品进行减量滴定(每次减量为10ng/kg/min),滴定间隔时间为15分钟,直至达到最小剂量2.5 ng/kg/min。若试验用药品已滴定至最小剂量2.5ng/kg/min,MAP仍≥71mmHg,可将试验用药品剂量滴定至1.25ng/kg/min,若MAP 仍≥71 mmHg,可将试验用药品减停。若经研究者评估,受试者在使用背景血管活性药物的基础上,仍需继续使用试验用药品,可重新使用和滴定。 2)若受试者的MAP在65-70mmHg 之间,则试验用药品维持当前剂量不变。若此时试验用药品未达到最高使用剂量,可尝试减量滴定背景血管活性药直至去甲肾上腺素当量总和最低至0.03 μg/kg/min,并根据MAP的变化重新滴定试验用药品。 3)若受试者的MAP在60-64mmHg 之间,则将试验用药品增加10 ng/kg/min,滴定间隔为15 分钟,直到达到MAP在65-70mmHg 之间,若试验用药品已达到最大剂量40ng/kg/min,受试者的MAP仍未达到目标65-70mmHg 之间,则根据中心研究者意见滴定增加背景血管活性药物剂量,滴定间隔同样为15分钟。 4)若受试者的MAP在≤59mmHg,则将试验用药品增加至40 ng/kg/min,滴定间隔为5分钟,若试验用药品增加至最大剂量40 ng/kg/min,受试者的MAP仍未达到目标65-70mmHg 之间,则可根据中心研究者意见滴定增加背景血管活性药物剂量。 第三阶段给药方案:试验用药品开始给药的第48小时-第168小时 在试验用药品开始给药第48小时后,每15min 以不超过10 ng/kg/min 的速度,将试验用药品剂量逐渐减量直至停用,同时由中心研究者根据患者情况自行滴定背景血管活性药物的使用剂量以维持受试者需要的MAP。若经研究者评估,受试者在使用背景血管活性药物的基础上,仍需继续使用试验用药品,则需在试验用药品前一次减量或停药的3 小时内进行试验用药品的重新使用及滴定,试验用药品的滴定及调整方案与第二阶段调整策略相同。所有受试者使用试验用药品总时长不得超过168h(7 天),在最多接受168 小时的试验用药品输注后,将通过每15min 降低10 ng/kg/min 的速度减少试验用药品剂量,直至完全停用。

干预措施代码:

Intervention:

Phase 1 Dosing Regimen: 0-3 hours after initiation of the investigational product The primary endpoint for this phase is the proportion of subjects achieving MAP >= 75 mmHg at hour 3 or an increase in MAP >= 10 mmHg from baseline at hour 3, with a target MAP of 75-84 mmHg. The starting dose of the investigational product is 20 ng/kg/min, administered via central venous catheter. The dose may be titrated every 5/15 minutes based on current MAP. The allowable dose range for the investigational product is 1.25–160 ng/kg/min. During the screening period, background vasoactive agents should be optimally titrated. In Phase 1, the dose of background vasoactive agents should remain constant, and the investigational product (Angiotensin II or placebo) should be titrated based on MAP. If safety concerns or clinical judgment necessitate an increase in background vasoactive agents, their dose may also be adjusted to maintain appropriate MAP. However, if the dose of background vasoactive agents is increased, the patient will be considered a treatment failure but may continue receiving the investigational product. Specific dose adjustments are as follows: 1) If the subject’s baseline MAP is <= 59 mmHg and remains <= 59 mmHg 5 minutes after initiating the investigational product, increase the investigational product dose to 80 ng/kg/min. After another 5 minutes, if MAP remains <= 59 mmHg, increase the dose to 100 ng/kg/min (in increments of 20 ng/kg/min, up to a maximum of 160 ng/kg/min), and reassess after 5 minutes. If MAP remains <= 59 mmHg at 160 ng/kg/min, increase the dose of background vasoactive agents and consider the treatment a failure. 2) If the patient’s MAP is between 60-74 mmHg, initiate and titrate the investigational product as shown in **Table 1**. After 15 minutes, if MAP remains between 60-74 mmHg, increase the investigational product dose by 10 ng/kg/min until MAP reaches 75-84 mmHg. If MAP decreases to <= 59 mmHg, retitrate according to step 1). 3) If the patient’s MAP is >= 85 mmHg within the first 3 hours of the study, reduce the investigational product dose by 10 ng/kg/min every 5 minutes. Once the dose reaches 10 ng/kg/min, further reductions may be made by halving the dose until the minimum dose (2.5 ng/kg/min) is reached. If the investigational product has been reduced to its minimum dose (2.5 ng/kg/min) and MAP remains >= 85 mmHg, decrease or discontinue background vasoactive agents. If MAP remains >= 85 mmHg after discontinuing background vasoactive agents, halve the investigational product dose again to 1.25 ng/kg/min. Phase 2 Dosing Regimen: 3-48 hours after initiation of the investigational product The target MAP for this phase should be maintained between 65-70 mmHg. The maximum allowable dose of the investigational product is 40 ng/kg/min (range: 1.25–40 ng/kg/min). During this phase, background vasoactive agents may be gradually tapered to reduce dependency. The tapering strategy may be adjusted per the investigator’s discretion. Specific dose adjustments are as follows: 1) If the subject’s MAP is >= 71 mmHg and background vasoactive agents are still in use, taper the background agents until MAP stabilizes between 65-70 mmHg. If MAP remains >= 71 mmHg after reducing background vasoactive agents to the minimum dose (0.03 μg/kg/min), decrease the investigational product dose by 10 ng/kg/min every 15 minutes until the minimum dose (2.5 ng/kg/min) is reached. If MAP remains >= 71 mmHg at 2.5 ng/kg/min, reduce the dose to 1.25 ng/kg/min. If MAP remains >= 71 mmHg, discontinue the investigational product. If the investigator deems it necessary to continue the investigational product alongside background vasoactive agents, restart and titrate per 2) If the subject’s MAP is between 65-70 mmHg, maintain the current investigational product dose. If the maximum dose has not been reached, attempt to taper background vasoactive agents until the total norepinephrine-equivalent dose is minimized to 0.03 μg/kg/min, and retitrate the investigational product based on MAP changes. 3) If the subject’s MAP is between 60-64 mmHg, increase the investigational product dose by 10 ng/kg/min every 15 minutes until MAP reaches 65-70 mmHg. If the maximum dose (40 ng/kg/min) is reached without achieving the target MAP, the investigator may increase background vasoactive agents in 15-minute intervals. 4) If the subject’s MAP is <= 59 mmHg, increase the investigational product dose to 40 ng/kg/min in 5-minute intervals. If the maximum dose (40 ng/kg/min) is reached without achieving the target MAP, the investigator may increase background vasoactive agents. Phase 3 Dosing Regimen: 48-168 hours after initiation of the investigational product After 48 hours, taper the investigational product by <= 10 ng/kg/min every 15 minutes until discontinuation, while the investigator adjusts background vasoactive agents to maintain the required MAP. If the investigator determines that the subject still requires the investigational product alongside background agents, it may be restarted and titrated within 3 hours of the last dose reduction or discontinuation, following the Phase 2 titration strategy. The total duration of investigational product administration must not exceed 168 hours (7 days). After 168 hours, discontinue the investigational product by reducing the dose by 10 ng/kg/min every 15 minutes until complete cessation.

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

广东 

市(区县):

广州 

Country:

China

Province:

Guangdong

City:

单位(医院):

中山大学附属第一医院 

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital, Sun Yat-Sen University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

重庆 

市(区县):

 

Country:

China

Province:

Chongqing

City:

单位(医院):

重庆医科大学附属第一医院 

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital of Chongqing Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

福建 

市(区县):

 

Country:

China

Province:

Fujian

City:

单位(医院):

福州大学附属省立医院  

单位级别:

三甲 

Institution
hospital:

Fujian Provincial Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

广东 

市(区县):

深圳 

Country:

China

Province:

Guangdong

City:

Shenzhen

单位(医院):

中山大学附属第七医院(深圳) 

单位级别:

三甲 

Institution
hospital:

The Seventh Affiliated Hospital of Sun Yat-sen University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

广东 

市(区县):

 

Country:

China

Province:

Guangdong

City:

单位(医院):

广州医科大学附属第一医院  

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital of Guangzhou Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

广东 

市(区县):

 

Country:

China

Province:

Guangdong

City:

单位(医院):

广州医科大学附属第二医院 

单位级别:

三甲 

Institution
hospital:

The Second Affiliated Hospital of Guangzhou Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

广东 

市(区县):

 

Country:

China

Province:

Guangdong

City:

单位(医院):

佛山市第一人民医院 

单位级别:

三甲 

Institution
hospital:

Foshan First People's Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

河南 

市(区县):

 

Country:

China

Province:

He nan

City:

单位(医院):

郑州大学第一附属医院 

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital of Zhengzhou University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

湖南 

市(区县):

 

Country:

China

Province:

Hu nan

City:

单位(医院):

中南大学湘雅三医院 

单位级别:

三甲 

Institution
hospital:

The Third Xiangya Hospital of Central South University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

黑龙江 

市(区县):

 

Country:

China

Province:

Heilongjiang

City:

单位(医院):

哈尔滨医科大学附属第二医院 

单位级别:

三甲 

Institution
hospital:

The Second Affiliated Hospital of Harbin Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

江西 

市(区县):

 

Country:

China

Province:

Jiangxi

City:

单位(医院):

南昌大学第一附属医院 

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital of Nanchang University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

山西 

市(区县):

 

Country:

China

Province:

Shanxi

City:

单位(医院):

山西医科大学第一医院 

单位级别:

三甲 

Institution
hospital:

The First Hospital of Shanxi Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

山西 

市(区县):

 

Country:

China

Province:

Shanxi

City:

单位(医院):

山西医科大学第二医院 

单位级别:

三甲 

Institution
hospital:

The Second Hospital of Shanxi Medical University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

浙江 

市(区县):

 

Country:

China

Province:

Zhejiang

City:

单位(医院):

杭州市第一人民医院 

单位级别:

三甲 

Institution
hospital:

Hangzhou First People's Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

浙江 

市(区县):

 

Country:

China

Province:

Zhejiang

City:

单位(医院):

浙江省台州医院 

单位级别:

三甲 

Institution
hospital:

Taizhou Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

浙江 

市(区县):

 

Country:

China

Province:

Zhejiang

City:

单位(医院):

金华市中心医院 

单位级别:

三甲 

Institution
hospital:

Jinhua Central Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

浙江 

市(区县):

 

Country:

China

Province:

Zhejiang

City:

单位(医院):

衢州市人民医院 

单位级别:

三甲 

Institution
hospital:

Quzhou People's Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

江苏 

市(区县):

 

Country:

China

Province:

Jiangsu

City:

单位(医院):

连云港市第一人民医院 

单位级别:

三甲 

Institution
hospital:

Lianyungang First People's Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

湖北 

市(区县):

 

Country:

China

Province:

Hubei

City:

单位(医院):

宜昌市中心人民医院 

单位级别:

三甲 

Institution
hospital:

Yichang Central People's Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

湖北 

市(区县):

 

Country:

China

Province:

Hubei

City:

单位(医院):

武汉市第三医院 

单位级别:

三甲 

Institution
hospital:

Wuhan Third Hospital

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

试验用药品给药后第3小时血压有反应的受试者比例

指标类型:

主要指标

Outcome:

Proportion of subjects achieving blood pressure response at 3 hours after administration of the investigational product

Type:

Primary indicator

测量时间点:

试验用药品给药后第3小时

测量方法:

监护仪

Measure time point of outcome:

Measure method:

指标中文名:

第48小时序贯器官衰竭评估(SOFA)总分较基线的变化

指标类型:

次要指标

Outcome:

Change in Sequential Organ Failure Assessment (SOFA) total score from baseline at 48 hours

Type:

Secondary indicator

测量时间点:

入组后第48小时

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

第7天受试者的全因死亡率

指标类型:

次要指标

Outcome:

All-cause mortality rate of subjects at day 7;

Type:

Secondary indicator

测量时间点:

入组后7天

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

第28天受试者的全因死亡率

指标类型:

次要指标

Outcome:

All-cause mortality rate of subjects at day 28

Type:

Secondary indicator

测量时间点:

入组后第28天

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

第48小时心血管SOFA子评分较基线的变化

指标类型:

次要指标

Outcome:

Change in cardiovascular SOFA subscore from baseline at 48 hours

Type:

Secondary indicator

测量时间点:

入组后第48小时

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

试验用药品给药后第1小时血压有反应的受试者比例

指标类型:

次要指标

Outcome:

Proportion of subjects achieving blood pressure response at 1 hour after investigational product administration

Type:

Secondary indicator

测量时间点:

入组后第1小时

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

试验用药品给药后第2小时血压有反应的受试者比例

指标类型:

次要指标

Outcome:

Proportion of subjects achieving blood pressure response at 2 hour after investigational product administration

Type:

Secondary indicator

测量时间点:

入组后第2小时

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

第3-48小时背景血管活性药剂量的变化

指标类型:

次要指标

Outcome:

Change in background vasoactive agent dose during 3-48 hours

Type:

Secondary indicator

测量时间点:

入组后第3-48小时

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

第 0-3、3-48小时血乳酸的变化绝对值

指标类型:

次要指标

Outcome:

Absolute change in blood lactate levels during 0-3 hours and 3-48 hours

Type:

Secondary indicator

测量时间点:

入组后第0-3、3-48小时

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

第0-3、3-48小时心率的变化绝对值

指标类型:

次要指标

Outcome:

Absolute change in heart rate during 0-3 hours and 3-48 hours

Type:

Secondary indicator

测量时间点:

入组后第0-3、3-48小时

测量方法:

Measure time point of outcome:

Measure method:

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

血液

组织:

Sample Name:

Blood

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age 18 years
最大 Max age 85 years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

试验所需,所有受试者将有三种号码,即筛选号、随机号和药物包装号。 每位受试者先分配筛选号,筛选号由各个临床试验单位确定,由“S”+5位数字组成,前2位数字为中心号,后3位数字为该中心筛选顺序号。例如:03中心筛选的第6位受试者,其筛选号即为S03006。

Randomization Procedure (please state who generates the random number sequence and by what method):

For trial requirements, all subjects will be assigned three identification numbers: a screening number, a randomization number, and a drug package number. Each subject will first be assigned a screening number, which is determined by individual clinical trial sites. The screening number consists of "S" followed by 5 digits, where the first 2 digits represent the center number and the last 3 digits represent the sequential screening number at that center. For example, the 6th subject screened at center 03 will have the screening number S03006.

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

公开/Public

盲法:

本次试验采用双盲设计。 药物现场编盲由随机单位人员和申办单位与本试验无关人员参加,以SAS软件(9.4或以上版本)产生药品包装号和验证码,以及所对应治疗组别。并将药物包装号和验证码填写(或粘贴)在对应药物(试验药或对照药)的标签上。编盲过程形成编盲记录保存。

Blinding:

This trial adopts a double-blind design. The on-site drug blinding process will involve personnel from the randomization unit and sponsor-affiliated staff unrelated to this trial. Using SAS software (version 9.4 or higher), drug package numbers and verification codes will be generated along with their corresponding treatment group assignments. These drug package numbers and verification codes will then be entered (or affixed) onto the labels of the corresponding drugs (investigational drug or control drug). The entire blinding process will be documented in a blinding record for preservation.

试验完成后的统计结果(上传文件):

Calculated Results after
the Study Completed(upload file):

是否共享原始数据:

IPD sharing

否No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

None

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

本次试验采用电子化数据管理,使用电子数据采集(EDC)系统收集临床试验数据。以下列出数据管理主要流程,其他详见数据管理计划(DMP)。DMP 作为数据管理的指导性文件由数据管理人员(DM)撰写,申办方批准,数据管理工作将根据DMP 的约定进行。 1、EDC 数据管理 电子病例报告表(eCRF):数据管理人员根据试验方案设计构建,并根据数据核查计划(DVP)设置逻辑核查,通过测试并获申办方批准后发布使用。 数据录入:eCRF 数据来源于原始记录,由数据录入人员根据eCRF 填写说明,将受试者访视数据及时录入EDC。源数据现场核查(SDV):监查员进行eCRF 数据与源数据的一致性核对,有问题可发疑问。 数据疑问和解答:疑问来源于EDC 逻辑核查的系统疑问,监查员、数据管理员、医学专员等人工疑问,研究者需及时解答疑问。数据管理员、监查员和医学专员进行疑问批复,必要时可再次发出疑问,直至数据“清洁”。 研究者签名:数据录入完成并经SDV 后,研究者进行电子签名审核确认。签名后的如有数据修订,需重新签名。 数据库锁定:由主要研究者、申办者、统计分析人员和数据管理人员共同签署数据库锁定声明后,数据管理人员进行数据库锁定。 数据集提交:数据管理员向统计人员提交数据库。 eCRF 存档:每个受试者的eCRF 生成PDF 电子文档保存。 EDC 关闭:统计分析完成后,数据管理员关闭数据库。 2、外部数据传输 签署外部数据传输协议,根据DMP 进行外部数据管理。 3、医学编码 不良事件采用MedDRA(27.1 或以上版本)字典进行编码,合并用药采用WHO ATC进行编码。

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

This trial employs electronic data management, utilizing an Electronic Data Capture (EDC) system for collecting clinical trial data. The main data management processes are outlined below, with additional details specified in the Data Management Plan (DMP). The DMP serves as the guiding document for data management, prepared by Data Management (DM) personnel and approved by the sponsor. All data management activities will be conducted in accordance with the DMP provisions. 1. EDC Data Management Electronic Case Report Form (eCRF): Designed by data management personnel based on the trial protocol, with logical checks configured according to the Data Validation Plan (DVP). The eCRF will be released for use after testing and sponsor approval. Data Entry: eCRF data originates from source documents. Data entry personnel will promptly input subject visit data into the EDC following eCRF completion instructions. Source Data Verification (SDV): Monitors will verify consistency between eCRF data and source documents, raising queries if discrepancies are identified. Data Queries and Resolutions: Queries may originate from EDC system-generated logical checks or manual queries raised by monitors, data managers, or medical specialists. Investigators must resolve queries promptly. Data managers, monitors, and medical specialists will review query resolutions and may reissue queries until data are "clean." Investigator Sign-off: After data entry completion and SDV, investigators will electronically sign to confirm review. Any post-signature data modifications require re-signature. Database Lock: Following joint approval via a signed database lock declaration by the principal investigator, sponsor, statistician, and data manager, the data manager will lock the database. Dataset Submission: The data manager will submit the database to the statistical team. eCRF Archiving: Each subject's eCRF will be saved as a PDF electronic document. EDC Closure: Upon completion of statistical analysis, the data manager will close the database. 2. External Data Transfer External data transfer agreements will be executed, with external data managed per the DMP. 3. Medical Coding Adverse events will be coded using the MedDRA dictionary (version 27.1 or higher). Concomitant medications will be coded using WHO ATC classification.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

有/Yes

注册人:

Name of Registration:

 2025-08-27 19:40:35