New pill shows promise for easing Parkinson's symptoms in early stages

NCT ID NCT04223193

Completed Symptom relief Sponsor: AbbVie Source: ClinicalTrials.gov ↗

First seen Nov 21, 2025 · Last updated May 05, 2026 · Updated 19 times

Summary

This study tested a new drug called tavapadon in 304 people with early Parkinson's disease. The goal was to see if it improves movement and daily living skills compared to a placebo over 27 weeks. Participants took flexible doses of the drug or a dummy pill, and researchers measured changes using a standard Parkinson's rating scale.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

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Locations

Albany, New York

Albany, New York, 12208, United States
Barcelona

Barcelona, Barcelona, 08035, Spain
Belgrade

Belgrade, Belgrade, 11000, Serbia
Berlin

Berlin, State of Berlin, 12163, Germany
Boca Raton, Florida

Boca Raton, Florida, 33487, United States
Bochum

Bochum, Bochum, 44791, Germany
Boston Neuro Research Center

North Dartmouth, Massachusetts, 02747, United States
Budapest

Budapest, Budapest, 1135, Hungary
Cassino

Cassino, Cassino, 03043, Italy
Centrum Medyczne Hope Clinic Sebastian Szklener

Lublin, 20-701, Poland
Centrum Medyczne NEUROMED

Bydgoszcz, 85-163, Poland
Cincinnati, Ohio

Cincinnati, Ohio, 45212, United States
Cleveland, Ohio

Cleveland, Ohio, 44195, United States
Cracow

Krakow, Cracow, 31-505, Poland
Cypress, Texas

Cypress, Texas, 77429, United States
Dongdaemun-gu, Seoul

Seoul, Dongdaemun-gu, 02447, South Korea
Fresno, California

Fresno, California, 93710, United States
Gera

Gera, Gera, 07551, Germany
Haeundae-gu, Busan

Busan, Haeundae-gu, 48108, South Korea
Houston, Texas

Houston, Texas, 77030, United States
Katowice

Katowice, Katowice, 40-097, Poland
Khlong Luang, Pathum Thani

Khlong Luang, Changwat Pathum Thani, 12120, Thailand
Kiev

Kiev, Kyiv City, 04114, Ukraine
Kirkland, Washington

Kirkland, Washington, 98034, United States
Lubbock, Texas

Lubbock, Texas, 79410, United States
Lviv

Lviv, Lviv Oblast, 79010, Ukraine
Macquarie Park, New South Wales

Sydney, New South Wales, 2109, Australia
Maitland, Florida

Maitland, Florida, 32751, United States
Marseille, France

Marseille, France, 13385, France
Memphis, Tennessee

Memphis, Tennessee, 38157, United States
Milano

Milan, Milano, 20132, Italy
Muenchen

München, Muenchen, 81377, Germany
Móstoles, Madrid

Madrid, Madrid, 28938, Spain
Nai Muang, Ubon Ratchathani

Nai Muang, Changwat Ubon Ratchathani, 34000, Thailand
Nantes CEDEX 1

Nantes, Nantes, 44093, France
Ocala, Florida

Ocala, Florida, 34470, United States
Pecs

Pécs, Hungary, 7623, Hungary
Ratchathewi, Bangkok

Ratchathewi, Bangkok, 10400, Thailand
Richmond, Virginia

Richmond, Virginia, 23229, United States
Richmond, Virginia

Richmond, Virginia, 23233, United States
Rome

Rome, Rome, 00133, Italy
Round Rock, Texas

Round Rock, Texas, 78681, United States
Rozzano Milano

Rozzano, 20089, Italy
Siemianowice Slaskie

Siemianowice Śląskie, Siemianowice Slaskie, 41-100, Poland
Songpa-gu, Seoul

Seoul, Songpa-gu, 05505, South Korea
Syracuse, New York

Syracuse, New York, 13210, United States
Tatabanya

Tatabánya, 2800, Hungary
Torino

Torino, 10126, Italy
Toulouse Cedex 9

Toulouse, Toulouse, 31059, France
Vinnitsa

Vinnitsa, Vinnitsa, 21050, Ukraine
Winter Park, Florida

Winter Park, Florida, 32792, United States
Zhongzheng, Taipei

Zhongzheng, Taipei, 100225, Taiwan
Zhongzheng, Taipei

Zhongzheng, Taipei, 112062, Taiwan

Conditions

Explore the condition pages connected to this study.

PARKINSON DISEASE