Dose Range Finding Study to Assess Efficacy and Safety of Tozorakimab in Adults With Uncontrolled Asthma on Medium-to-High Dose Inhaled Corticosteroids

NCT ID: NCT06932263

Last Updated: 2026-01-16

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

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

540 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-26

Study Completion Date

2028-03-16

Brief Summary

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This is a dose-range finding, double-blind, placebo-controlled, phase IIb study designed to assess efficacy and safety of tozorakimab administered subcutaneously in adult participants with uncontrolled asthma receiving medium-to-high dose inhaled corticosteroids.

Detailed Description

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Conditions

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Asthma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This is a parallel-group treatment study with 3 arms. Participants will be randomised in a ratio of 1:1:1 to one of the 3 treatment arms.
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Tozorakimab Dose 1

Dosing subcutaneously tozorakimab Dose 1

Group Type EXPERIMENTAL

Tozorakimab

Intervention Type DRUG

The drug will be administered subcutaneously.

Tozorakimab Dose 2

Dosing subcutaneously tozorakimab Dose 2 and placebo

Group Type EXPERIMENTAL

Tozorakimab

Intervention Type DRUG

The drug will be administered subcutaneously.

Placebo

Dosing subcutaneously with equivalent volume to tozorakimab

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo will be administered subcutaneously.

Interventions

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Tozorakimab

The drug will be administered subcutaneously.

Intervention Type DRUG

Placebo

Placebo will be administered subcutaneously.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Provision of signed and dated written informed consent prior to any study-specific procedures.
2. Adults aged 18-75, inclusive when signing the informed consent.
3. Documented physician-diagnosis of asthma for at least 12 months.
4. Treated with medium or high dose ICS in combination with LABA.
5. Demonstration of uncontrolled asthma through ACQ-6 score ≥ 1.5 .
6. Pre-bronchodilator FEV1 ≥ 40% to ≤ 90% of predicted normal.
7. Documented exacerbation history in the last 12 months and biomarker requirements of:

1. 2 severe exacerbations OR
2. 1 severe exacerbation and:

(i) Eosinophils ≥ 150 cells/µl or (ii) FeNo ≥ 25 ppb
8. Participants need to demonstrate a ≥70% compliance for Asthma Daily Diary.
9. Women of Child Bearing Potential (WOCBP) must have a negative pregnancy test.
10. Contraceptive use by males and females should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

Exclusion Criteria

1. Completed treatment for respiratory infection with antibiotics in the 4 weeks prior to Visit 1.
2. Clinically significant pulmonary disease other than asthma .
3. Current smokers, former smokers with \>10 pack-years history.
4. Clinically significant aortic stenosis or pulmonary arterial hypertension.
5. Active tuberculosis, hepatitis, HIV, or current diagnosis of cancer or immune complex disease.
6. Unstable cardiovascular disorders.
Minimum Eligible Age

18 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

Locations

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Research Site

Bakersfield, California, United States

Site Status RECRUITING

Research Site

Huntington Beach, California, United States

Site Status RECRUITING

Research Site

La Mesa, California, United States

Site Status RECRUITING

Research Site

Newport Beach, California, United States

Site Status RECRUITING

Research Site

San Jose, California, United States

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Research Site

Wilmington, Delaware, United States

Site Status RECRUITING

Research Site

Cutler Bay, Florida, United States

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Research Site

Hialeah, Florida, United States

Site Status RECRUITING

Research Site

Hialeah, Florida, United States

Site Status RECRUITING

Research Site

Leesburg, Florida, United States

Site Status WITHDRAWN

Research Site

Miami, Florida, United States

Site Status RECRUITING

Research Site

Miami, Florida, United States

Site Status RECRUITING

Research Site

Orlando, Florida, United States

Site Status RECRUITING

Research Site

Palmetto Bay, Florida, United States

Site Status RECRUITING

Research Site

Tampa, Florida, United States

Site Status RECRUITING

Research Site

Winter Park, Florida, United States

Site Status RECRUITING

Research Site

Boise, Idaho, United States

Site Status WITHDRAWN

Research Site

Indianapolis, Indiana, United States

Site Status RECRUITING

Research Site

West Des Moines, Iowa, United States

Site Status RECRUITING

Research Site

Louisville, Kentucky, United States

Site Status RECRUITING

Research Site

White Marsh, Maryland, United States

Site Status WITHDRAWN

Research Site

Farmington Hills, Michigan, United States

Site Status RECRUITING

Research Site

Warren, Michigan, United States

Site Status WITHDRAWN

Research Site

St Louis, Missouri, United States

Site Status RECRUITING

Research Site

Bellevue, Nebraska, United States

Site Status WITHDRAWN

Research Site

Grand Island, Nebraska, United States

Site Status RECRUITING

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Omaha, Nebraska, United States

Site Status RECRUITING

Research Site

Toms River, New Jersey, United States

Site Status RECRUITING

Research Site

Maspeth, New York, United States

Site Status RECRUITING

Research Site

Asheville, North Carolina, United States

Site Status WITHDRAWN

Research Site

Huntersville, North Carolina, United States

Site Status WITHDRAWN

Research Site

Kings Mountain, North Carolina, United States

Site Status RECRUITING

Research Site

Toledo, Ohio, United States

Site Status RECRUITING

Research Site

Edmond, Oklahoma, United States

Site Status WITHDRAWN

Research Site

Grants Pass, Oregon, United States

Site Status WITHDRAWN

Research Site

Medford, Oregon, United States

Site Status RECRUITING

Research Site

Portland, Oregon, United States

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Research Site

DuBois, Pennsylvania, United States

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Philadelphia, Pennsylvania, United States

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Smithfield, Pennsylvania, United States

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Research Site

Rock Hill, South Carolina, United States

Site Status RECRUITING

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Knoxville, Tennessee, United States

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Austin, Texas, United States

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Research Site

Forney, Texas, United States

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Kingwood, Texas, United States

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Tyler, Texas, United States

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Victoria, Texas, United States

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Roy, Utah, United States

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Bellingham, Washington, United States

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Kingwood, West Virginia, United States

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Research Site

Milwaukee, Wisconsin, United States

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Research Site

CABA, , Argentina

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Research Site

Ciudad de Buenos Aires, , Argentina

Site Status WITHDRAWN

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Ciudad de Buenos Aires, , Argentina

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La Plata, , Argentina

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Mendoza, , Argentina

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Rosario, , Argentina

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San Miguel de Tucumán, , Argentina

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Caxias do Sul, , Brazil

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Criciúma, , Brazil

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Porto Alegre, , Brazil

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Porto Alegre, , Brazil

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Salvador, , Brazil

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Research Site

Santo André, , Brazil

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São José do Rio Preto, , Brazil

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São Paulo, , Brazil

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São Paulo, , Brazil

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Sorocaba, , Brazil

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Curicó, , Chile

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Quillota, , Chile

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Santiago, , Chile

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Santiago, , Chile

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Santiago, , Chile

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Temuco, , Chile

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Viña del Mar, , Chile

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Baotou, , China

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Changchun, , China

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Chengdu, , China

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Chongqing, , China

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Guangzhou, , China

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Haikou, , China

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Hefei, , China

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Hohhot, , China

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Huizhou, , 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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Shenzhen, , China

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Wenzhou, , China

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Xuzhou, , China

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Brest, , France

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Créteil, , France

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Lyon, , France

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Marseille, , France

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Pessac, , France

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Strasbourg, , France

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Suresnes, , France

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Athens, , Greece

Site Status ACTIVE_NOT_RECRUITING

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Athens, , Greece

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Ioannina, , Greece

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Pátrai, , Greece

Site Status ACTIVE_NOT_RECRUITING

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Thessaloniki, , Greece

Site Status ACTIVE_NOT_RECRUITING

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Thessaloniki, , Greece

Site Status ACTIVE_NOT_RECRUITING

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Balassagyarmat, , Hungary

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Budapest, , Hungary

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Budapest, , Hungary

Site Status WITHDRAWN

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Debrecen, , Hungary

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Gödöllő, , Hungary

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Pécs, , Hungary

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Törökbálint, , Hungary

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Belagavi, , India

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Coimbatore, , India

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Dehradun, , India

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Delhi, , India

Site Status NOT_YET_RECRUITING

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Faridabad, , India

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Gurgaon, , India

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Kochi, , India

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Lucknow, , India

Site Status SUSPENDED

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New Delhi, , India

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Vadodara, , India

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Haifa, , Israel

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Jerusalem, , Israel

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Kfar Saba, , Israel

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Ramat Gan, , Israel

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Catania, , Italy

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Foggia, , Italy

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Genoa, , Italy

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Roma, , Italy

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Fukuoka, , Japan

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Ginowan-shi, , Japan

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Hiroshima, , Japan

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Ishinomaki, , Japan

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Kawaguchi-shi, , Japan

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Kiyose-shi, , Japan

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Kobe, , Japan

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Meguro-ku, , Japan

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Miura, , Japan

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Neyagawa, , Japan

Site Status NOT_YET_RECRUITING

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Sapporo, , Japan

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Sapporo, , Japan

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Takamatsu, , Japan

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Ube, , Japan

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Yokohama, , Japan

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Yokohama, , Japan

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Yokohama, , Japan

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Lima, , Peru

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Lima, , Peru

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Lima, , Peru

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Lima, , Peru

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Lima, , Peru

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Lima, , Peru

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Iloilo City, , Philippines

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Las Piñas, , Philippines

Site Status NOT_YET_RECRUITING

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Lipa City, , Philippines

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Manadaluyong City, , Philippines

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Quezon City, , Philippines

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Roxas City, , Philippines

Site Status NOT_YET_RECRUITING

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Benoni, , South Africa

Site Status RECRUITING

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Brackenfell, , South Africa

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Cape Town, , South Africa

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Durban, , South Africa

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eMkhomazi, , South Africa

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Somerset West, , South Africa

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Tygervalley, , South Africa

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Cheongju-si, , South Korea

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Daegu, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Barcelona, , Spain

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Barcelona, , Spain

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Madrid, , Spain

Site Status RECRUITING

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Málaga, , Spain

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Mérida, , Spain

Site Status WITHDRAWN

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Patraix, , Spain

Site Status RECRUITING

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Santander, , Spain

Site Status RECRUITING

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Kaohsiung City, , Taiwan

Site Status RECRUITING

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New Taipei City, , Taiwan

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Taichung, , Taiwan

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Taichung, , Taiwan

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Taipei, , Taiwan

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Taipei, , Taiwan

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Taipei, , Taiwan

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Taipei, , Taiwan

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Bangkok, , Thailand

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Chanthaburi, , Thailand

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Chiang Rai, , Thailand

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Chon Buri, , Thailand

Site Status RECRUITING

Research Site

Khon Kaen, , Thailand

Site Status RECRUITING

Research Site

Nakhon Sri Thammarat, , Thailand

Site Status RECRUITING

Research Site

Adana, , Turkey (Türkiye)

Site Status RECRUITING

Research Site

Ankara, , Turkey (Türkiye)

Site Status RECRUITING

Research Site

Bursa, , Turkey (Türkiye)

Site Status RECRUITING

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Gaziantep, , Turkey (Türkiye)

Site Status RECRUITING

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Istanbul, , Turkey (Türkiye)

Site Status RECRUITING

Research Site

Kayseri, , Turkey (Türkiye)

Site Status RECRUITING

Research Site

Mersin, , Turkey (Türkiye)

Site Status RECRUITING

Research Site

Da Nang, , Vietnam

Site Status NOT_YET_RECRUITING

Research Site

Haiphong, , Vietnam

Site Status NOT_YET_RECRUITING

Research Site

Hanoi, , Vietnam

Site Status NOT_YET_RECRUITING

Research Site

Ho Chi Minh City, , Vietnam

Site Status NOT_YET_RECRUITING

Research Site

Ho Chi Minh City, , Vietnam

Site Status NOT_YET_RECRUITING

Research Site

Huế, , Vietnam

Site Status NOT_YET_RECRUITING

Countries

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United States Argentina Brazil Chile China France Greece Hungary India Israel Italy Japan Peru Philippines South Africa South Korea Spain Taiwan Thailand Turkey (Türkiye) Vietnam

Central Contacts

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AstraZeneca Clinical Study Information Center

Role: CONTACT

1-877-240-9479

Other Identifiers

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2024-519116-14-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

D9181C00002

Identifier Type: -

Identifier Source: org_study_id

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