一项评估 Benralizumab 在嗜酸性粒细胞增多症 (HES) 患者中的疗效和安全性的 3 期研究 (NATRON)
一项多中心、随机、双盲、平行组、安慰剂对照、为期 24 周的 3 期研究,具有开放标签扩展,以评估 Benralizumab 在嗜酸性粒细胞增多综合征 (HES) 患者中的疗效和安全性
研究概览
详细说明
这是一项多中心,随机,DB,平行组,安慰剂对照,24周的III期研究,可比较SC注射Q4W对HES患者的苯甲拉比珠单抗30 mg的疗效和安全性。 这项研究将在18个国家的大约68个地点进行。
目标患者人群是男性和女性患者,年龄在12岁及以上,有症状的主动性HES。 符合条件的患者必须对FIP1L1-PDGFRA融合酪氨酸激酶基因易位为阴性。
潜在的符合条件的患者将进入3天的筛查期,并将被要求在访问1之前至少记录稳定的HES治疗4周,而在当地实验室测试中AEC≥1000个细胞/μL才能进行筛查的第二天时期。 将评估患者的皮质类固醇反应性(在2天后,在患者的背景治疗中对HES的HES进行了1 mg/kg/day 2天后,将患者定义为AEC <1000个细胞/μL。允许其他等效剂量的OCS。 不反应性皮质类固醇或失败任何其他资格标准的患者将失败。
预计将在随机化/基线访问时以1:1的比率随机分配约120名患者(访问3)将在24周的DB治疗期内接受苯拉利亚单抗或匹配的安慰剂Q4W。 如果需要达到目标数量恶化/耀斑的目标数量,招募可能会持续超过120名患者。 青少年患者的招募目标与整个人群中青少年的预期患病率广泛一致。 大约4至6名青少年患者(12至17岁)被靶向随机。 随机化将分层。 大约40名患者将参加非干预的访谈,以收集有关HRQOL的数据和研究期间患者的经验。
在筛查期间以及整个36周的治疗过程中,所有患者将继续进行稳定的剂量和背景治疗方案(直到可以调整治疗,直到第36周访问12/周)。 在此期间,只有患者的临床恶化/耀斑或AE被认为是由于背景治疗引起的,才可以修改HES治疗。
Astrazeneca,现场和患者将对所有WBC(嗜酸性粒细胞,嗜碱性粒细胞,单核细胞,中性粒细胞和淋巴细胞)的绝对嗜酸性粒细胞,bas粒和单核细胞计数,差异(百分比)(百分比)(百分比)视而不见。在随机化/基线(访问3/第0周)之后,在整个DB治疗期间,在OLE治疗期的前4周(直到访问10/周28),此后不对WBC计数或活检单元格进行视而不见必需的。 在初级DBL之后,Astrazeneca将对所有患者的血液和活检细胞计数在DB治疗期间获得。
DB治疗期的最终剂量将在第20周给予,DB治疗期将在第24周完成。
所有在IP上完成DB治疗期的患者均可有资格继续在甲leiz蛋umab(30 mg SC Q4W)上继续进入OLE治疗期。 OLE旨在允许成人至少1年的开放标签贝拉利珠单抗治疗,而在研究期DB治疗期结束后,青少年至少要接受2年年)。 阿斯利康可能选择根据整体开发计划来扩展研究。 此外,阿斯利康保留尽早终止OLE的权利(例如,如果资产的发展已终止或获得营销授权)。
当大约38名患者在DB治疗期间发生了大约38名患者,所有随机患者都有机会在24周的DB治疗期内进行跟进,将发生主要的DBL。 治疗分配将一直视而不见,直到初级DBL。 患者必须在IP上完成24周的DB治疗期,才有资格进入OLE治疗期。 最后的DBL将在最后一个患者完成OLE后发生。 研究期的OLE治疗期的数据将在主要分析的附录中介绍CSR和/或单独的OLE治疗期CSR。
研究类型
注册 (实际的)
阶段
- 第三阶段
联系人和位置
学习地点
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Chengdu、中国、610041
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Shanghai、中国、200040
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Tianjin、中国、300020
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Xiamen、中国、361015
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Zhengzhou、中国、450008
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København Ø、丹麦、2100
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Haifa、以色列、34362
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Holon、以色列、58100
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Jerusalem、以色列、91120
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Kfar Saba、以色列、44218
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Petah Tikva、以色列、49100
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Ramat Gan、以色列、5265601
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Rehovot、以色列、76100
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Tel Aviv、以色列、64239
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Ahmedabad、印度、380013
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Ajmer、印度、305001
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Delhi、印度、110029
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Innsbruck、奥地利、6020
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Hanover、德国、30625
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Kirchheim、德国、73230
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Mannheim、德国、68167
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Bologna、意大利、40138
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Chiba、日本、260-0852
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Hamamatsu、日本、431-3192
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Ichikawa-shi、日本、272-8516
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Kawasaki-shi、日本、211-8510
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Nishinomiya-shi、日本、663-8501
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Osaka、日本、530-8480
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Sendai、日本、980-8574
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Brussels、比利时、1070
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Edegem、比利时、2650
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Lille、法国、59037
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Pessac、法国、33604
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Strasbourg、法国、67091
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Suresnes、法国、92151
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Toulouse、法国、31059
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Chęciny、波兰、26-060
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Gdansk、波兰、80-214
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Lodz、波兰、90-153
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California
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La Jolla、California、美国、92037
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Atlanta、Georgia、美国、30324
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Bethesda、Maryland、美国、20892
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Michigan
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Ann Arbor、Michigan、美国、48105
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North Carolina
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Durham、North Carolina、美国、27705
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Ohio
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Cleveland、Ohio、美国、44106
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Columbus、Ohio、美国、43212
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Utah
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Salt Lake City、Utah、美国、84112
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London、英国、W2 1NY
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Rotterdam、荷兰、3015 GD
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Santander、西班牙、39010
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Rosario、阿根廷、2000
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Seoul、韩国、5505
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
描述
纳入标准
- 在任何强制性研究特定程序、取样和分析之前,提供患者或患者合法授权代表签署并注明日期的书面知情同意书,以及患者的知情同意书(根据当地法规)。
- 签署 ICF 时年满 12 岁的男性和女性。
- HES 的记录诊断(持续性嗜酸性粒细胞增多史 >1500 个细胞/μL,2 次检查无继发原因 [间隔 ≥ 1 个月;Valent 等人 2012 年],以及终末器官表现可归因于嗜酸性粒细胞增多的证据)。
- FIP1L1-PDGFRA 融合酪氨酸激酶基因易位的记录阴性测试。
- 第 1 次就诊时稳定的 HES 治疗剂量和方案持续 ≥ 4 周
- 第 1 次就诊时 HES 恶化/发作的体征或症状和/或指示 HES 恶化/发作的实验室异常(孤立的嗜酸性粒细胞增多除外)。
- 第 1 次访视时 AEC ≥1000 个细胞/μL(由当地实验室评估)。
- 定义为 AEC 的皮质类固醇反应性
- 育龄妇女 (WOCBP) 必须同意从注册开始、整个研究期间以及最后一次 IP 给药后 12 周内使用高效的节育方法(经研究者确认),并且尿液试纸妊娠试验结果为阴性访问 1
排除标准
由研究者判断的危及生命的 HES 和/或 HES 并发症:
- 随机分组前 12 周内对 HES 相关的危及生命事件的医疗干预或
- 与 HES 相关的血栓并发症、中风或严重心脏损伤的病史,如果相应事件危及生命并且目前代表危及生命的疾病并发症的风险。 过去发生但被认为已解决或稳定的事件,如果根据研究者的判断,参与研究不会使患者处于危险之中,则可以接受
- 研究者认为使患者不适合纳入研究的疾病严重程度。
- 存在 FIP1L1-PDGFRA 融合酪氨酸激酶基因易位或其他已知的伊马替尼敏感突变。
- 嗜酸性肉芽肿伴多血管炎的明确诊断。
- 已知的、预先存在的、具有临床意义的内分泌、自身免疫、代谢、神经、肾脏、胃肠道、肝脏、血液、呼吸或任何其他与 HES 无关且标准治疗无法控制的系统异常,专家认为研究者,可能因为他/她参与研究而使患者处于危险之中,或者可能影响研究的结果,或者患者完成整个研究期间的能力。
- 意义不明的嗜酸性粒细胞增多症。
- 心血管:在第 1 次就诊前 12 个月内记录的任何具有临床意义的心脏损伤、具有临床意义的超声心动图(如果有)或 ECG 发现,或在筛选时具有临床意义的 ECG 发现,研究者认为这可能会使患者处于危险之中.
已知目前有活动性肝病。
- 如果患者符合资格标准,则可以接受慢性稳定的乙型和丙型肝炎(包括乙型肝炎表面抗原或丙型肝炎抗体阳性检测)或其他稳定的慢性肝病。 稳定的慢性肝病一般应定义为没有腹水、脑病、凝血病、低白蛋白血症、食管或胃底静脉曲张、持续性黄疸或肝硬化。
- 筛选期间丙氨酸转氨酶 (ALT) 或天冬氨酸转氨酶 (AST) 水平≥正常值上限 (ULN) 的 3 倍(如果记录到 HES 伴有肝脏表现,则 AST 或 ALT >5 倍 ULN)。 如果研究者认为患者没有活动性肝病并且符合其他资格标准,则 AST/ALT 水平的短暂升高在随机化时消退是可以接受的。
目前的恶性肿瘤,或恶性肿瘤病史,除了:
- 患有基底细胞癌、局限性皮肤鳞状细胞癌或宫颈原位癌的患者符合条件,前提是患者处于缓解期并且在知情同意日期前至少 12 个月完成治愈性治疗,并同意适用时,获得。
- 患有其他恶性肿瘤的患者符合条件,前提是患者处于缓解期并且在知情同意日期前至少 5 年完成治愈性治疗,并在适用时获得同意。
- 系统性肥大细胞增多症的诊断。
- 需要全身治疗的慢性或持续性活动性感染,以及在第 1 次就诊前 4 周内有临床意义的病毒、细菌或真菌感染。
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:四人间
武器和干预
参与者组/臂 |
干预/治疗 |
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实验性的:贝那利珠单抗臂
1x Benralizumab 皮下注射
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每 4 周皮下注射一次贝那利珠单抗注射液,装在辅助预装注射器 (APFS) 中
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安慰剂比较:安慰剂组
1x Benralizumab 匹配安慰剂皮下注射
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APFS 中用于注射的匹配安慰剂溶液将每 4 周皮下注射一次
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Time to First HES Worsening/Flare During the DB Treatment Period
大体时间:DB period (Baseline to Week 24)
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The time to first HES worsening/flare is calculated as: start date of the first HES worsening - date of randomisation + 1. For participants who do not experience a HES worsening/flare, the time to first HES worsening/flare is right censored at the end of the DB period corresponding to the earliest date (date of the first of Benra open label dose, study day 183, date of last contact, and data cut-off date). The number of participants with events and censored observations is presented. |
DB period (Baseline to Week 24)
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Proportion of Patients Who Experience an HES Worsening/Flare During the DB Treatment Period
大体时间:DB period (Baseline to Week 24)
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The proportion of participants who experience an HES worsening/flare or who withdraw from the study prior to completing the 24-week DB treatment period. The proportion is calculated as the number of participants with an HES worsening/flare or withdrawal divided by the total number of participants in the analysis population. The number and proportion (expressed as percentage) or participants who experienced HES worsening/flare is presented. |
DB period (Baseline to Week 24)
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Number of HES Worsenings/Flares (Annualised Rate) During the DB Period
大体时间:DB period (Baseline to Week 24)
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The annualised rate of HES worsening/flare events was analysed using a negative binomial regression model adjusted for region, with the logarithm of follow-up time included as an offset variable. Annualized flare rates are model estimated marginal rates. A separate HES worsening/flare is considered if the start date of an HES worsening/flare is at least 14 days apart from the stop date of a preceding HES worsening/flare. |
DB period (Baseline to Week 24)
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Time to First Haematologic Relapse (AEC ≥ 1000 Cells/μL) During the DB Period
大体时间:DB period (Baseline to Week 24)
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Time to first haematologic relapse is calculated as start date of the first haematologic relapse - date of randomisation + 1. Haematologic relapse is defined as the first occurrence of an absolute eosinophil count (AEC) ≥ 1000 cells/μL post-baseline. For participants who do not experience haematologic relapse, the time to first haematologic relapse is right censored at the end of the DB period corresponding to the earliest date of (date of the first of Benra open label dose, study day 183, date of last contact, and data cut-off date). The number of participants with events and censored observations is presented. |
DB period (Baseline to Week 24)
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Fatigue Severity (PROMIS Fatigue Short Form 7a) at Week 24
大体时间:Week 24
|
Fatigue severity was assessed using the Patient-Reported Outcomes Measurement Information System (PROMIS) Fatigue Short Form 7a questionnaire. Each item is scored on a 5-point Likert scale (1 to 5), and the total raw score is converted to a T-score. T-scores are standardized such that 50 represents the population mean with a standard deviation of 10. Standardized T-score range is from 29.4 to 83.2, with higher scores indicating more severe fatigue. A reduction in T-score indicates an improvement in fatigue severity. The least squares (LS) mean (95% CI) change from baseline in T-score at Week 24 is presented. |
Week 24
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Proportion of Patients Who Have Haematologic Relapse During the DB Treatment Period
大体时间:DB period (Baseline to Week 24)
|
The proportion of patients who have a haematologic relapse or withdraw from the study over the DB treatment period is defined as the number of participants who have a first haematologic relapse or withdraw prior to completing in the DB period divided by the number of participants in the the analysis. Haematologic relapse is defined when AEC post baseline is ≥ 1,000 cells/Ul for the first time. The number and proportion (expressed as percentage) of participants who experienced haematologic relapse is presented. |
DB period (Baseline to Week 24)
|
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Proportion of Patients Who Have AEC < 500 Cells/μL for 24 Weeks
大体时间:DB period (Baseline to Week 24)
|
The proportion of participants who maintained an AEC of < 500 cells/µL throughout the 24-week DB treatment period. The proportion is defined as the number of participants who maintained AEC < 500 cells/µL divided by the total number of participants in the analysis population. The number and proportion (expressed as percentage) of participants who maintained AEC < 500 cells/µL is presented. |
DB period (Baseline to Week 24)
|
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Proportion of Patients Who Require an Increase in Corticosteroid Dose From Baseline at Any Point in the DB Treatment Period
大体时间:DB period (Baseline to Week 24)
|
The proportion of patients who required an increase in systemic corticosteroids (SCS) from baseline during the 24-week DB treatment period. An increase in SCS includes an increase of at least 1 mg prednisone equivalent for participants receiving oral corticosteroids at baseline, or initiation of a new or additional course of systemic corticosteroids for treatment of HES or a closely related condition. Baseline is defined as the last valid value on or prior to randomisation. The number and proportion (expressed as percentage) of participants who require an increase in SCS from baseline. |
DB period (Baseline to Week 24)
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Health-Related Quality of Life (HRQoL) (Short Form-36 Version 2 [SF-36v2])
大体时间:DB period (Baseline to Week 24)
|
HRQoL was assessed using the 36 Item Short Form Health Survey, version 2 (SF 36v2). Change from baseline in HRQoL was evaluated using the Physical Component Summary (PCS) and Mental Component Summary (MCS) scores at Week 12 and Week 24 during the DB treatment period. PCS and MCS scores are norm-based and standardized to a general population with a mean of 50 and a standard deviation of 10, with higher scores indicating better HRQoL. Scores generally range from 0 to 100. PCS and MCS scores are derived from weighted combinations of domain scores using standard scoring algorithms. An increase in score indicates an improvement. LS mean (95% CI) changes from baseline for PCS and MCS scores are presented. |
DB period (Baseline to Week 24)
|
|
Patient Global Impression of Severity (PGI-S)
大体时间:DB period (Baseline to Week 24)
|
Patient Global Impression of Severity (PGI-S) is a single-item, participant-reported assessment of disease severity during the DB treatment period. PGI-S captures the participant's perception of overall symptom severity at the time of assessment using categorical response options ranging from "No symptoms" to "Very severe". The number and percentage of participants in each response category are presented at each timepoint. |
DB period (Baseline to Week 24)
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Patient Global Impression of Change (PGI-C)
大体时间:DB period (Baseline to Week 24)
|
Patient Global Impression of Change (PGI-C) is a single-item, participant-reported assessment that captures the participant's overall evaluation of response to treatment during the DB treatment period.
PGI-C reflects the participant's perception of change in disease status compared with baseline using categorical response options ranging from "Much better" to "Much worse."
The number and percentage of participants in each response category are presented at each time point.
|
DB period (Baseline to Week 24)
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Serum Benralizumab Concentrations
大体时间:DB period (Baseline to Week 24)
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Serum concentrations of benralizumab measured over time during the DB period to characterise the pharmacokinetics of benralizumab in participants with HES. Baseline is defined as the last valid value on or prior to the date of randomisation. |
DB period (Baseline to Week 24)
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Anti-Benralizumab Antibodies and Neutralizing Antibodies (nAbs)
大体时间:DB period (Baseline to Week 24)
|
Immunogenicity of benralizumab, as assessed by the incidence and prevalence of anti-drug antibodies (ADA), including nAbs, measured from baseline through the 24-week DB treatment period in participants with HES.
|
DB period (Baseline to Week 24)
|
合作者和调查者
赞助
出版物和有用的链接
有用的网址
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
- D3254C00001
- 2019-002039-27 (EudraCT编号)
- 2023-510455-28-00 (注册表标识符:CTIS)
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)?
IPD 计划说明
IPD 共享时间框架
IPD 共享访问标准
IPD 共享支持信息类型
- 研究方案
- 树液
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
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