A Randomized, Double-Blind, Placebo-Controlled, Multicenter, Parallel-Group Study of Ustekinumab in Adult Japanese Subjects With Severe Atopic Dermatitis
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 79
- 主要终点
- Percent Change in Eczema Area Severity Index (EASI) Total Score From Baseline at Week 12
研究概览
简要总结
The purpose of this study is to assess the safety and effectiveness of 2 doses of ustekinumab compared with placebo (inactive medication) in adult Japanese participants with severe atopic dermatitis.
详细描述
This is a randomized (the study medication is assigned by chance), double-blind (neither physician nor participant knows the identity of the assigned treatment), placebo-controlled (one of the study medications is inactive), multicenter, parallel group study (each participant group receives different treatments simultaneously). Participants will be randomly assigned in a 1:1:1 ratio to receive either ustekinumab 45 mg, ustekinumab 90 mg, or placebo. The study will consist of a screening period, a 12-week double-blind treatment period, and a 12-week follow-up period. During the double-blind treatment period, participants will receive one subcutaneous injection of study medication at Week 0 and Week 4. Participants will return to the study center for 7 evaluation visits on Weeks 2, 4, 8, 12, 16, 20, and 24. Clinical response will be evaluated by Eczema Area and Severity Index (EASI), Investigator's Global Assessment (IGA), photography, and Dermatology Life Quality Index (DLQI). Participants will record their itch condition twice daily using the participant daily diary from 2 weeks prior to randomization until Week 12. Blood samples will be drawn at time periods during the screening, double-blind treatment, and follow-up periods. Participant safety will be monitored throughout the study. Participants are permitted to use concomitant topical medications, as defined in the protocol and without any increase in dose, from 4 weeks prior to randomization through to the end of the treatment period. After Week 12, additional treatment can be started or the dose of concomitant medications can be increased, if no improvement in clinical response is observed; in these cases EASI, IGA, and photography evaluations will be stopped. The study duration for each participant is expected to be approximately 30 weeks. Ustekinumab (also known as STELARA) is an antibody medication that inhibits the inflammatory proteins IL-12 and IL-23 and is approved as a treatment for moderate to severe plaque-type psoriasis; this study will examine whether ustekinumab can provide benefit in atopic dermatitis and assess for any risks or side effects.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 20 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Must be Japanese
- •Must have a diagnosis of atopic dermatitis, with childhood onset (under age of 13), in accordance with the definition and diagnostic criteria of the Japanese Dermatological Association and must have pruritus and eczematous changes; the condition must be chronic or chronically relapsing in nature
- •Inadequate response to, or not willing to use strong treatment with a topical corticosteroid and/or a topical calcineurin inhibitor and/or phototherapy
- •Must meet all the following criteria regarding severity of atopic dermatitis: Rajka-Langeland score of 8 to 9; severe or very severe disease as defined in standard treatment guidelines; an Eczema Area and Severity Index (EASI) score of >= 12; and an Investigator's Global Assessment (IGA) score of severe disease or very severe disease
- •Must conform to the following tuberculosis (TB) screening criteria: no history of latent or active TB prior to screening; no signs or symptoms suggestive of active TB; no recent close contact with a person with active TB; and a negative Interferon Gamma Release Assay (IGRA) result within 2 months prior to the first administration of study drug
排除标准
- •History of or current clinically significant medical illness that the investigator considers should exclude the participant or that could interfere with the interpretation of the study results
- •Has an indeterminate initial and repeat IGRA result or a newly positive IGRA result and is unwilling or unable to undergo TB prophylaxis treatment
- •Has received any of the following medications or therapies within 4 weeks prior to randomization: systemic non-steroid immunosuppressive or immunomodulatory drugs; systemic corticosteroids; high daily dose of inhaled corticosteroids; topical corticosteroids of strongest potency for atopic dermatitis; topical antihistamines (including topical doxepin); topical anesthetics; topical nonsteroidal anti-inflammatory drugs; topical counter-irritants (eg, capsaicin, menthol, wintergreen oil); antidepressants or antipsychotics; soporifics; phototherapy including ultraviolet A , ultraviolet B, and psoralen with ultraviolet A (PUVA); hyposensitization (desensitization) therapy
- •Has changed the dose and dosing regimen within 4 weeks prior to randomization of any of the following drugs: topical corticosteroid (excluding the strongest potency) for atopic dermatitis; topical calcineurin inhibitor; emollients; anti-leukotriene therapies (including therapies for other allergic indications); systemic histamine H1 blocker (including sleep medications with antihistamine properties); sodium cromoglicate; suplatast tosilate; tranilast; thromboxane A2 inhibitors; and topical or oral herbal preparations for the treatment of atopic dermatitis
- •Has received any of the following biologic agents within the following time periods: any marketed immunomodulatory biologic within a period of 3 months or 5 half-lives, whichever is longer, prior to randomization; a biologic agent targeting IL-12 or IL-23, including but not limited to ustekinumab (CNTO 1275), briakinumab (ABT-874), guselkumab (CNTO 1959) or MK-3222 at any point in time; or an experimental biologic therapy within the previous 6 months
研究组 & 干预措施
Ustekinumab 45 mg
干预措施: Ustekinumab (Drug)
Ustekinumab 45 mg
干预措施: Concomitant topical medications for atopic dermatitis (Other)
Ustekinumab 90 mg
干预措施: Ustekinumab (Drug)
Ustekinumab 90 mg
干预措施: Concomitant topical medications for atopic dermatitis (Other)
Placebo
干预措施: Placebo (Drug)
Placebo
干预措施: Concomitant topical medications for atopic dermatitis (Other)
结局指标
主要结局
Percent Change in Eczema Area Severity Index (EASI) Total Score From Baseline at Week 12
时间窗: Baseline and Week 12
The EASI score was used to measure the severity and extent of atopic dermatitis (AD) and measures erythema (E), infiltration (I), excoriation (Ex) and lichenification (L) on a scale of 0 (none) to 3 (severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no eruption) to 6 (greater than \[\>\] 90 percent \[%\]-100% eruption). The total score is the sum of the four body-region scores, maximum=72, minimum=0, with higher scores reflecting greater disease severity. The total qualitative score is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant and summed to yield the EASI score.
次要结局
- Number of Participants With an Investigator's Global Assessment (IGA) Score of "Clear" or "Almost Clear" at Week 12(Week 12)
- Change From Baseline in Atopic Dermatitis Itch Scale (ADIS) at Week 12(Baseline and Week 12)
- Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 12(Baseline and Week 12)
- Number of Participants With Greater Than or Equal to (>=) 50 Percent (%) and >=75% Decrease in EASI Total Score From Baseline(Week 2, 4, 8, 12, 16, 20 and 24)
- Number of Participants With an IGA Score of "Clear" or "Almost Clear"(Baseline, Week 2, 4, 8, 12, 16, 20 and 24)
- Number of Participants With Greater Than or Equal to 2 Points Decrease in IGA From Baseline(Week 2, 4, 8, 12, 16, 20 and 24)
- Number of Participants in IGA(Baseline, Week 2, 4, 8, 12, 16, 20 and 24)
- Percent Change From Baseline in EASI Total Score(Week 2, 4, 8, 12, 16, 20 and 24)
- Percent Change From Baseline in EASI Sign of Disease Components(Week 2, 4, 8, 12, 16, 20 and 24)
- Percent Change From Baseline of Body Region Scores in EASI(Week 2, 4, 8, 12, 16, 20 and 24)
- Number of Participants With Mild or Absent Key Sign of Atopic Dermatitis (AD)(Baseline, Week 2, 4, 8, 12, 16, 20 and 24)