Open-label Trial in Parkinson's Disease (PD)

NCT ID: NCT04760769

Last Updated: 2025-12-23

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

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

992 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-02-24

Study Completion Date

2025-12-01

Brief Summary

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The purpose of this study is to evaluate the safety and efficacy of long-term administration of flexible doses of tavapadon in participants with Parkinson's Disease.

Detailed Description

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Conditions

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Parkinson Disease

Keywords

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Parkinsonian Disorders Brain Diseases Central Nervous System Diseases Nervous System Diseases Movement Disorders Neurodegenerative Diseases

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Tavapadon

Participants will receive a Tavapadon tablet at a dose of 5 milligrams (mg) to 15 mg once daily (QD) orally during 58-week treatment period.

Group Type EXPERIMENTAL

Tavapadon

Intervention Type DRUG

Participants will receive Tavapadon at a dose of (5 to 15) mg QD, orally during a 58-week treatment period.

Interventions

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Tavapadon

Participants will receive Tavapadon at a dose of (5 to 15) mg QD, orally during a 58-week treatment period.

Intervention Type DRUG

Other Intervention Names

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PF-06649751 CVL-751

Eligibility Criteria

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Inclusion Criteria

* Participants who complete the 27-week double-blind Treatment Period of Trial CVL-751-PD-001 (NCT04201093) or Trial CVL-751 PD-003 (NCT04542499) or the 27-week double-blind Treatment Period and 10-day Safety/Withdrawal Assessment Period of Trial CVL-751-PD-002 (NCT04223193) and enter this trial within 72 hours after completing the last trial visit in the double-blind trial. Rollover participants from Trial CVL-751-PD-003 must continue to use levodopa/carbidopa (or levodopa/benserazide) for the duration of the trial.
* Sexually active men or women of childbearing potential must agree to use acceptable (at minimum) or highly effective birth control, or remain abstinent during the trial and for 4 weeks after the last dose of trial treatment.
* Participants who are capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the ICF and in the protocol.
* Participants who are willing and able to refrain from any PD medications that are not permitted by the protocol (including dopaminergic agents) throughout participation in the trial.
* Participant who, in the judgement of the investigator, demonstrated adequate compliance with the IMP and protocol requirements in the double-blind trial.

Exclusion Criteria

Rollover participants are excluded from the trial if any of the following met:

* Participants who do not enroll in this open-label trial within 72 hours after completing the last trial visit in the double-blind trial
* Participants who answer "yes" on the C-SSRS Suicidal Ideation Item 4 or Item 5 (Active Suicidal Ideation with Some Intent to Act, Without Specific Plan, or Active Suicidal Ideation with Specific Plan and Intent) and whose most recent episode meeting the criteria for C-SSRS Item 4 or Item 5 occurred within the last 6 months, OR Participants who answer "yes" on any of the 5 C-SSRS Suicidal Behavior Items (actual attempt, interrupted attempt, aborted attempt, preparatory acts, or behavior) and whose most recent episode meeting the criteria for any of these 5 C-SSRS Suicidal Behavior Items occurred within the last 2 years, OR Participants who, in the opinion of the investigator, present a serious risk of suicide.
* Participants who had previously been enrolled in this open-label trial and had subsequently withdrawn.
Minimum Eligible Age

40 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AbbVie

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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ABBVIE Inc.

Role: STUDY_DIRECTOR

AbbVie

Locations

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Birmingham, Alabama

Birmingham, Alabama, United States

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Pheonix, Arizona

Phoenix, Arizona, United States

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Little Rock, Arkansas

Little Rock, Arkansas, United States

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Fountain Valley, California

Fountain Valley, California, United States

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Fresno, California

Fresno, California, United States

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Los Angeles, California

Los Angeles, California, United States

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Pasadena, California

Pasadena, California, United States

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Reseda, California

Reseda, California, United States

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Englewood, Colorado

Englewood, Colorado, United States

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Florida, United States

Adventura, Florida, United States

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Boca Raton, Florida

Boca Raton, Florida, United States

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Coral Springs, Florida

Coral Springs, Florida, United States

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Maitland, Florida

Maitland, Florida, United States

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Naples, Florida

Naples, Florida, United States

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Ocala, Florida

Ocala, Florida, United States

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Port Charlotte, Florida

Port Charlotte, Florida, United States

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Port Orange, Florida

Port Orange, Florida, United States

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Tampa, Florida

Tampa, Florida, United States

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Winter Park, Florida

Winter Park, Florida, United States

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Augusta, Georgia

Augusta, Georgia, United States

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Chicago, Illinois

Chicago, Illinois, United States

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Winfield, Illinois

Winfield, Illinois, United States

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Kansas City

Kansas City, Kansas, United States

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Lexington, Kentucky

Lexington, Kentucky, United States

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Scarborough, Maine

Scarborough, Maine, United States

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Boston, Massachusettes

Boston, Massachusetts, United States

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Lawrence, Massachusetts

Lawrence, Massachusetts, United States

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East Lansing, Michigan

East Lansing, Michigan, United States

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West Bloomfield

West Bloomfield, Michigan, United States

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Las Vegas, Nevada

Las Vegas, Nevada, United States

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Camden, New Jersey

Camden, New Jersey, United States

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Albany, New York

Albany, New York, United States

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Syracuse, New York

Syracuse, New York, United States

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Asheville, North Carolina

Asheville, North Carolina, United States

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Durham, North Carolina

Durham, North Carolina, United States

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Cincinnati, Ohio

Cincinnati, Ohio, United States

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Cleveland, Ohio

Cleveland, Ohio, United States

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Columbus, Ohio

Columbus, Ohio, United States

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Dayton, Ohio

Dayton, Ohio, United States

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Toledo, Ohio

Toledo, Ohio, United States

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Philadelphia, Pennsylvania

Philadelphia, Pennsylvania, United States

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Memphis, Tennessee

Memphis, Tennessee, United States

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Georgetown, Texas

Georgetown, Texas, United States

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Houston, Texas

Houston, Texas, United States

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Lubbock, Texas

Lubbock, Texas, United States

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Round Rock, Texas

Round Rock, Texas, United States

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Burlington, Vermont

Burlington, Vermont, United States

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Richmond, Virginia

Richmond, Virginia, United States

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Richmond, Virginia

Richmond, Virginia, United States

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Virginia Beach, Virginia

Virginia Beach, Virginia, United States

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Kirkland, Washington

Kirkland, Washington, United States

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Spokane, Washington

Spokane, Washington, United States

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Erina, New South Wales

Erina, New South Wales, Australia

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Kogarah

Kogarah, New South Wales, Australia

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Macquarie Park, New South Wales

Sydney, New South Wales, Australia

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Woolloongabba, Queensland

Woolloongabba, Queensland, Australia

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Clayton, Victoria

Clayton, Victoria, Australia

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Parkville, Victoria

Parkville, Victoria, Australia

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Medical center VITA1, Pleven

Pleven, , Bulgaria

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Pleven, Bulgaria

Pleven, , Bulgaria

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Pleven

Pleven, , Bulgaria

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Multiprofile Hospital, Sofia

Sofia, , Bulgaria

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Sofia

Sofia, , Bulgaria

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Sofia

Sofia, , Bulgaria

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Sofia

Sofia, , Bulgaria

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Ottawa, Ontario

Ottawa, Ontario, Canada

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Toronto, Ontario

Toronto, Ontario, Canada

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Chocen

Choceň, Chocen, Czechia

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Prague, Czech Republic

Prague, Czech Republic, Czechia

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Prague,

Prague, , Czechia

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Prague,

Prague, , Czechia

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Rychnov nad Kněžnou

Rychnov nad Kněžnou, , Czechia

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Creteil,

Créteil, Creteil, France

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Boulevard Pinel, Bron

Bron, , France

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Grenoble cedex

Grenoble, , France

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Nancy

Nancy, , France

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Nîmes cedex 09

Nîmes, , France

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Strasbourg

Strasbourg, , France

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Toulouse Cedex 9

Toulouse, , France

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Muenster

Münster, Muenster, Germany

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Bad Homburg

Bad Homburg, , Germany

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Berlin

Berlin, , Germany

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Bochum

Bochum, , Germany

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Gera

Gera, , Germany

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Haag in Oberbayern

Haag in Oberbayern, , Germany

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Klinikum rechts der Isar der TU München

Munich, , Germany

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Muenchen

München, , Germany

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Stadtroda

Stadtroda, , Germany

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Budapest

Budapest, , Hungary

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Pecs

Pécs, , Hungary

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Tatabanya

Tatabánya, , Hungary

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Haifa

Haifa, , Israel

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Petah Tiqva

Petah Tikva, , Israel

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Ramat Gan

Ramat Gan, , Israel

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Shoham

Shoham, , Israel

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Tel Aviv

Tel Aviv, , Israel

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Ancona

Ancona, , Italy

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Cassino

Cassino, , Italy

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Milano, Italy

Milan, , Italy

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Milano

Milan, , Italy

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Padova

Padua, , Italy

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Pisa

Pisa, , Italy

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Rome

Rome, , Italy

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Rome

Rome, , Italy

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Rome

Rome, , Italy

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Torino

Torino, , Italy

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Cracow

Krakow, Cracow, Poland

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Siemianowice Slaskie

Siemianowice Śląskie, Siemianowice Slaskie, Poland

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Centrum Medyczne NEUROMED

Bydgoszcz, , Poland

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Katowice

Katowice, , Poland

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Katowice

Katowice, , Poland

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Kraków

Krakow, , Poland

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Krakow

Krakow, , Poland

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Krakow

Krakow, , Poland

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Lublin

Lublin, , Poland

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Centrum Medyczne Hope Clinic Sebastian Szklener

Lublin, , Poland

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Warsaw

Warsaw, , Poland

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Singua

Warsaw, , Poland

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Belgrade, Serbia

Belgrade, , Serbia

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Belgrade,

Belgrade, , Serbia

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Belgrade

Belgrade, , Serbia

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Belgrade, Kragujevac

Belgrade, , Serbia

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Elche

Elche, Alicante, Spain

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Barcelona

Barcelona, , Spain

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Barcelona

Barcelona, , Spain

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Sant Cugat del Vallés Barcelona

Barcelona, , Spain

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San Sebastian

Donostia / San Sebastian, , Spain

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Madrid

Madrid, , Spain

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Móstoles, Madrid

Madrid, , Spain

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Pamplona

Pamplona, , Spain

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Sevilla

Seville, , Spain

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Terrassa

Terrassa, , Spain

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Valencia

Valencia, , Spain

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Zaporiizhzhya

Zaporizhzhya, Zaporiizhzhya, Ukraine

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Zaporozhya

Zaporizhzhya, Zaporozhya, Ukraine

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Dnipro

Dnipro, , Ukraine

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Dnipro

Dnipro, , Ukraine

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Lviv

Lviv, , Ukraine

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Vinnitsa

Vinnitsa, , Ukraine

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Medical Center, Zaporizhzhya

Zaporizhzhya, , Ukraine

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Countries

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United States Australia Bulgaria Canada Czechia France Germany Hungary Israel Italy Poland Serbia Spain Ukraine

Other Identifiers

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2019-002952-17

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

CVL-751-PD-004

Identifier Type: -

Identifier Source: org_study_id