STEP: Phase IIIb Study of Benralizumab to Step-down Maintenance Therapy in Patients With Severe Eosinophilic Asthma

NCT ID: NCT06465485

Last Updated: 2025-10-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

504 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-28

Study Completion Date

2026-12-31

Brief Summary

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This is a prospective, multi-center, single-arm Phase 3b study designed to evaluate the potential benefit to patients if benralizumab treatment could enable reduction in asthma maintenance controllers while allowing patients to maintain asthma control in Chinese patients.

Detailed Description

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The study population will be approximately 480 patients on MD/HD ICS/LABA with and without LTRA or LAMA or theophylline and meeting study inclusion and exclusion criteria in China. After patients sign the informed consent, they will undergo a screening visit (Visit 1, Week -1 to Week 0) to assess eligibility criteria. Patients who meet eligibility criteria and complete study baseline assessments will enter the study and receive the first dose of benralizumab at visit 2 (Week 0).

The benralizumab treatment includes 4 phases: Induction Phase (16 weeks), Reduction Phase (24 weeks), Maintenance Phase (16 weeks) and Follow-up Phase (4 weeks). After initiation of benralizumab 30 mg administered subcutaneously every 4 weeks (Q4W) for the first 3 doses (Visits 2 to 4), then every 8 weeks (Q8W) thereafter.

Conditions

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Severe Eosinophilic Asthma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Benralizumab

Severe eosinophilic asthma taking medium-high dose ICS/LABA with/without LTRAs, LAMAs will be all treated by study Drug.

Group Type EXPERIMENTAL

Benralizumab

Intervention Type DRUG

Severe eosinophilic asthma taking medium-high dose ICS/LABA with/without LTRAs, LAMAs will be enrolled into this single arm treatment.

Interventions

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Benralizumab

Severe eosinophilic asthma taking medium-high dose ICS/LABA with/without LTRAs, LAMAs will be enrolled into this single arm treatment.

Intervention Type DRUG

Other Intervention Names

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Fasenra

Eligibility Criteria

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Inclusion Criteria

* Examples of acceptable documentation of the asthma disease state and prior asthma exacerbations include clinic visit (primary or specialist Health care provider (HCP)), emergency room/urgent care, or hospital records listing asthma as a current problem, plus documentation of at least 1 asthma exacerbations during the 12 months prior to ICF.

Weight 9. Weight of ≥40 kg. Sex and Contraceptive/Barrier Requirements 10. Male and/or female Contraceptive use by females should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

* Female patients:
* Females not of childbearing potential are defined as females who are either permanently sterilised (hysterectomy, bilateral oophorectomy, or bilateral salpingectomy), or who are postmenopausal. Females will be considered postmenopausal if they have been amenorrhoeic for 12 months prior to Visit 1(Week -1 to Week 0) without an alternative medical cause. The following age-specific requirements apply:
* Females \< 50 years old would be considered postmenopausal if they have been amenorrhoeic for 12 months or more following cessation of exogenous hormonal treatment and FSH levels in the postmenopausal range.
* Females ≥ 50 years old would be considered postmenopausal if they have been amenorrhoeic for 12 months or more following cessation of all exogenous hormonal treatment.
* Female patients of childbearing potential must use one highly effective form of birth control. A highly effective method of contraception is defined as one that can achieve a failure rate of less than 1% per year when used consistently and correctly. Females of childbearing potential who are sexually active with a non-sterilised male partner must agree to use one highly effective method of birth control, as defined below, from enrolment throughout the study and until at least 12 weeks after last dose of study intervention. Cessation of contraception after this point should be discussed with a responsible physician.
* The following are not acceptable methods of contraception: periodic abstinence (calendar, symptothermal, post-ovulation methods), withdrawal (coitus interruptus), spermicides only, and lactational amenorrhoea. Female condom and male condom should not be used together.
* All WOCBP must have a negative serum pregnancy test result at Visit 1(Week -1 to Week 0).
* Highly effective birth control methods include: Total sexual abstinence is an acceptable method provided it is the usual lifestyle of the patient (defined as refraining from heterosexual intercourse during the entire period of risk associated with the study treatments) \[(periodic abstinence eg, calendar, ovulation,symptothermal, post-ovulation methods), declaration of abstinence for the duration of exposure to study intervention, and withdrawal are not acceptable methods of contraception\], a vasectomised partner, Implanon®, bilateral tubal occlusion, intrauterine device/levonorgestrel intrauterine system, Depo-Provera™ injections, oral contraceptive, and Evra Patch™, Xulane™, or NuvaRing®.
Minimum Eligible Age

12 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AstraZeneca

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Min Zhang, Professor

Role: PRINCIPAL_INVESTIGATOR

ShangHai First General Hospital

HuaHao Shen, Professor

Role: PRINCIPAL_INVESTIGATOR

Second Affiliated Hospital, School of Medicine, Zhejiang University

Locations

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Research Site

Beijing, , China

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Beijing, , China

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Beijing, , China

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Beijing, , China

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Changsha, , China

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Changsha, , China

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Changsha, , China

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Chengdu, , China

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Chengdu, , China

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Chengdu, , China

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Chengdu, , China

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Chongqing, , China

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Guangzhou, , China

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Guangzhou, , China

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Guangzhou, , China

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Guangzhou, , China

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Guilin, , China

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Guiyang, , China

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Hangzhou, , China

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Hangzhou, , China

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Hefei, , China

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Hefei, , China

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Hohhot, , China

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Hohhot, , China

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Huzhou, , China

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Jinan, , China

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Jinan, , China

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Jinan, , China

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Kunming, , China

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Lanzhou, , China

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Luoyang, , China

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Nanjing, , China

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Nanjing, , China

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Nanning, , China

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Ningbo, , China

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Qingdao, , China

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Shanghai, , China

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Shanghai, , China

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Shanghai, , China

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Shanghai, , China

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Shanghai, , China

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Shenyang, , China

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Shenyang, , China

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Shenzhen, , China

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Shenzhen, , China

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Shenzhen, , China

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Shenzhen, , China

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Shijiazhuang, , China

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Shijiazhuang, , China

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Suzhou, , China

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Suzhou, , China

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Taiyuan, , China

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Taiyuan, , China

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Tangshan, , China

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Tianjin, , China

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Tianjin, , China

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Tianjin, , China

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Weifang, , China

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Wenzhou, , China

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Wuhan, , China

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Wuhan, , China

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Wuhan, , China

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Wuhu, , China

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Xi'an, , China

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Xi'an, , China

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Xi'an, , China

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Xiamen, , China

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Xinxiang, , China

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Xuzhou, , China

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Yangzhou, , China

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Zhangzhou, , China

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Zhengzhou, , China

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Zhengzhou, , China

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Zhengzhou, , China

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Countries

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China

Other Identifiers

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D3250L00046

Identifier Type: -

Identifier Source: org_study_id

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