A Phase 3, Randomized, Double-blind, Placebo-controlled, Cross-over Study of Oral Deucrictibant Soft Capsule for On-Demand Treatment of Attacks in Adolescents and Adults With Hereditary Angioedema
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 发起方
- 入组人数
- 134
- 试验地点
- 1
- 主要终点
- Time to onset of symptom relief, defined as Patient Global Impression of Change (PGI-C) rating of at least "a little better" for 2 consecutive timepoints within 12 hours post-treatment.
研究概览
简要总结
This is a Phase 3, multicenter, randomized, double-blind, placebo-controlled, 2-period, 2-treatment cross-over study to evaluate the efficacy and safety of orally administered deucrictibant compared to placebo for the on-demand treatment of HAE attacks, including non-severe laryngeal attacks, in participants ≥12 to ≤75 years of age with HAE type 1, type 2, or type 3, a proportion of whom are using long-term prophylactic medication for HAE.
详细描述
The study consists of a Screening Phase during which eligibility is confirmed, a Treatment Phase in which participants will be randomized and receive double blinded study drug to treat 2 qualifying HAE attacks (i.e., 2 Treatment Periods within the Treatment Phase), and an End-of-Study Follow-up Phase after the second attack treated with study drug. In addition, for adolescent participants (age ≥12 to <18 years), PK samples are collected after administration of deucrictibant at Day 1 in a non-attack state.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 12 Years 至 75 Years(Child, Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Provision of written informed consent/assent.
- •Male or female, aged ≥12 to ≤75 years at the time of providing written informed consent/assent.
- •Diagnosis of HAE-1/2/
- •History of at least 2 HAE attacks in the last 3 months before screening.
- •Experience with using standard-of-care treatment to effectively manage on-demand treatment for HAE attacks.
- •Participants on long-term prophylactic therapy with plasma-derived C1-INH (danazol, anti-fibrinolytics, berotralstat, or lanadelumab) must be on a stable dose and regimen and intend to remain on the same dose for 6 months before screening and the duration of the study. OR, Participant has stopped using plasma-derived C1-INH (danazol, anti-fibrinolytics, berotralstat) at least 2 weeks or lanadelumab at least 10 weeks before screening.
- •Capable of recording, without assistance, electronic HAE diary and ePRO data using an electronic device.
- •For adolescent participants aged ≥12 and <18 years of age: body weight ≥40 kg.
- •Female participants of childbearing potential must agree to the protocol specified pregnancy testing and contraception methods.
排除标准
- •Any female who is pregnant, plans to become pregnant, or is breastfeeding.
- •Any diagnosis of angioedema other than HAE.
- •Any clinically significant comorbidity or systemic dysfunction that would interfere with the participant's safety or ability to participate in the study.
- •Use of attenuated androgens for short-term prophylaxis within 2 weeks before screening.
- •Abnormal hepatic function.
- •Abnormal renal function (eGFR <60 ml/min/1.73 m2).
- •History of alcohol or drug abuse within the previous year, or current evidence of substance dependence or abuse.
- •Has received prior on-demand HAE treatment with deucrictibant.
- •Currently participating in any other investigational drug study or receiving other investigational treatment within the last 30 days, or within 5 half-lives (whichever is longer) of the time of randomization.
- •Prior gene therapy for any indication at any time.
- •Use of concomitant medications with systemic absorption that are strong inhibitors of CYP3A4 or strong inducers of CYP3A4 within the last 30 days, or within 5 half-lives (whichever is longer) of the time of randomization.
- •Known hypersensitivity to study drug or any of the excipients of study drug.
研究组 & 干预措施
Arm 1
Deucrictibant administered for first HAE attack, placebo administered for second HAE attack.
干预措施: Deucrictibant, Placebo (Drug)
Arm 2
Placebo administered for first HAE attack, deucrictibant administered for second HAE attack.
干预措施: Deucrictibant, Placebo (Drug)
结局指标
主要结局
Time to onset of symptom relief, defined as Patient Global Impression of Change (PGI-C) rating of at least "a little better" for 2 consecutive timepoints within 12 hours post-treatment.
时间窗: Pre-treatment to 12 hours post-treatment.
The PGI-C (7-point scale) is used to evaluate the change in the HAE attack symptoms as compared to pre-treatment.
次要结局
- Proportion of study drug-treated attacks achieving PGI-C rating of at least "a little better" at 4 hours post-treatment.(Pre-treatment to 4 hours post-treatment.)
- Time to substantial symptom relief, defined as achieving PGI-C rating of at least "better" for 2 consecutive timepoints within 12 hours post-treatment.(Pre-treatment to 12 hours post-treatment.)
- Time to substantial symptom relief by Patient Global Impression of Severity (PGI-S).(Pre-treatment to 12 hours post-treatment.)
- Time to complete symptom resolution, defined as achieving PGI-S rating of "none" within 48 hours post-treatment.(Pre-treatment to 48 hours post-treatment.)
- Time to End of Progression (EoP) in attack symptoms within 12 hours.(Pre-treatment to 12 hours post-treatment.)
- Time to EoP in attack symptoms within 12 hours.(Pre-treatment to 12 hours post-treatment.)
- Proportion of study drug-treated attacks reaching almost complete or complete symptom relief by AMRA.(Pre-treatment to 24 hours post-treatment.)
- Proportion of attacks achieving symptom resolution.(Pre-treatment to 24 hours post-treatment.)
- Proportion of study drug-treated attacks requiring rescue medication within 24 hours post-treatment.(Pre-treatment to 24 hours post-treatment.)
- Time to substantial symptom relief by Angioedema Symptom Rating Scale (AMRA).(Pre-treatment to 12 hours post-treatment.)
- Time to almost complete or complete symptom relief by AMRA.(Pre-treatment to 24 hours post-treatment.)
