MedPath

Extension Study To Evaluate Safety And Tolerability Of 24-Hour Daily Exposure Of Continuous Subcutaneous Infusion of ABBV-951 In Adult Participants With Parkinson's Disease

Phase 3
Active, not recruiting
Conditions
Parkinson's Disease (PD)
Interventions
Drug: ABBV-951
Registration Number
NCT04379050
Lead Sponsor
AbbVie
Brief Summary

Parkinson's disease (PD) is a neurological condition, which affects the brain. PD gets worse over time, but how quickly it progresses varies a lot from person to person. Some symptoms of PD are tremors, stiffness, and slowness of movement. The purpose of this study is to continue testing whether ABBV-951 is safe, effective, and tolerable in participants with Parkinson's disease after completion of the parent study M15-741.

ABBV-951 is an investigational (unapproved) drug containing levodopa phosphate/carbidopa phosphate (LDP/CDP) given as infusion under the skin for the treatment of Parkinson's Disease. Participants who have successfully completed M15-741 study will immediately enter this study's treatment period to continue receiving ABBV-951. Adult participants with advanced PD will be enrolled. Approximately 130 adult participants will be enrolled in the study at approximately 65 sites worldwide.

Participants will receive continuous subcutaneous infusion (CSCI) of ABBV-951 for 24 hours daily during the Primary Treatment Period and during the optional Extended Treatment Period.

There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular clinic visits and have remote assessments completed via phone calls during the course of the study. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects, and completing questionnaires.

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
130
Inclusion Criteria
  • Participants who have Parkinson's Disease and who have successfully completed the parent study M15-741.
  • Participants willing and able to comply with procedures required in the protocol.
Read More
Exclusion Criteria
  • Participants, if judged by the investigator to be unsuitable candidates to continue to receive ABBV-951 for any reason.
Read More

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
ABBV-951ABBV-951Participants will receive ABBV-951 solution by continuous subcutaneous infusion (CSCI), at the discretion of the investigator, for up to 96 weeks.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With Adverse Events (AE)Up To Week 96

An AE is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with the treatment. The investigator assesses the relationship of each event to the use of the study drug or device as either reasonable possibility or no reasonable possibility. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Adverse Events of Special Interest (AESI) - polyneuropathy, weight loss, hallucinations/psychosis, and somnolence will be monitored throughout the study.

Percentage Of Participants With Numeric Grade Equal To Or Higher Than 5 On The Infusion Site Evaluation ScaleUp To Week 96

The Infusion Site Evaluation Scale will be used to assess infusion sites. Infusion Site Evaluation Scale is an eight-point numeric scale used to assess irritation at the infusion site area (0 being "no evidence of irritation" and 7 being "strong reaction spreading beyond the test site").

Change in Vital Signs MeasurementsUp To Week 96

Number of participants with clinically significant change from baseline in vital signs will be reported throughout the study.

Change From Baseline in Electrocardiograms (ECGs)Up To Week 96

Change from baseline in 12-lead ECGs on heart rate, RR interval, PR interval, QRS duration, and QT interval will be monitored throughout the study.

Change in Clinical Laboratory Test DataUp To Week 96

Number of participants with clinically significant change from baseline in laboratory parameters (hematology, biochemistry, coagulation, and urinalysis) will be reported throughout the study.

Percentage Of Participants With Letter Grade Equal To Or Higher Than D On The Infusion Site Evaluation ScaleUp To Week 96

The Infusion Site Evaluation Scale will be used to assess infusion sites. Infusion Site Evaluation Scale is an A to G letter grade scale, used to assess irritation at the infusion site area (A being "no finding" to G being "Small petechial erosions and/or scabs").

Secondary Outcome Measures
NameTimeMethod
Average Normalized Daily "On" TimeUp To Week 96

Average normalized daily "On" time is assessed based on Parkinson's Disease (PD) Diary.

Parkinson's Disease (PD) Symptoms MeasurementUp To Week 96

PD symptoms will be assessed by the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Parts I-IV.

The MDS-UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's Disease (PD) with scores ranging from 0 to 236 with 236 representing the worst disability, and 0 representing no disability.

Change From Baseline in Quality Of Life Measurement as Assessed by PD Questionnaire-39 (PDQ-39)Up To Week 96

Quality of life is assessed by the PD Questionnaire-39 items (PDQ-39). PDQ-39 is a disease-specific instrument designed to measure aspects of health that are relevant to participants with PD, and which may not be included in general health status questionnaires.

Each item is scored on a 5-point scale.

Average Normalized Daily "Off" TimeUp To Week 96

Average normalized daily "Off" Time (Hours) is assessed based on Parkinson's Disease (PD) Diary.

Change From Baseline in Health-related Quality Of Life Measurement as Assessed by EuroQol 5-dimensions questionnaire (EQ-5D-5L)Up To Week 96

Health-related quality of life is assessed by the EuroQol 5-dimensions questionnaire (EQ-5D-5L).

EQ-5D-5L is a standardized instrument that consists of 2 parts: the EQ-5D descriptive system and the EQ visual analogue-scale (EQVAS).

Cognitive Impairment MeasurementUp To Week 96

Cognitive impairment is assessed by the Mini-Mental State Examination (MMSE). MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The test consists of five sections (orientation, registration, attention-calculation, recall, and language) and results in a total possible score of 0 to 30, with higher scores indicating better function.

Trial Locations

Locations (51)

Washington University-School of Medicine /ID# 215472

🇺🇸

Saint Louis, Missouri, United States

Central Texas Neurology Consul /ID# 217013

🇺🇸

Round Rock, Texas, United States

Booth Gardner Parkinson's Care Center /ID# 215535

🇺🇸

Kirkland, Washington, United States

Concord Repatriation General Hospital /ID# 215943

🇦🇺

Concord, New South Wales, Australia

The Alfred Hospital /ID# 215942

🇦🇺

Melbourne, Victoria, Australia

Royal Adelaide Hospital /ID# 215940

🇦🇺

Adelaide, South Australia, Australia

Universitaetsklinikum Ulm /ID# 215405

🇩🇪

Ulm, Baden-Wuerttemberg, Germany

curiositas ad sanum /ID# 215404

🇩🇪

Haag i.OB, Bayern, Germany

Kliniken Beelitz GmbH /ID# 215403

🇩🇪

Beelitz-Heilstaetten, Germany

IRCCS Centro Neurolesi Bonino Pulejo /ID# 215422

🇮🇹

Messina, Italy

Azienda Ospedaliera di Padova /ID# 215421

🇮🇹

Padova, Italy

National Hospital Organization Asahikawa Medical Center /ID# 218762

🇯🇵

Asahikawa-shi, Hokkaido, Japan

Osaka University Hospital /ID# 217415

🇯🇵

Suita-shi, Osaka, Japan

Academician I.P. Pavlov First St. Petersburg State Medical University /ID# 218869

🇷🇺

St. Petersburg, Sankt-Peterburg, Russian Federation

Complejo Hospitalario Universitario A Coruña /ID# 215426

🇪🇸

A Coruña, A Coruna, Spain

Hospital Universitari de Bellvitge /ID# 215427

🇪🇸

L'Hospitalet de Llobregat, Barcelona, Spain

Skane University Hospital Lund /ID# 215385

🇸🇪

Lund, Skane Lan, Sweden

Karolinska Universitetssjukhuset - Huddinge /ID# 215386

🇸🇪

Huddinge, Stockholms Lan, Sweden

King's College Hospital NHS Foundation Trust /ID# 217388

🇬🇧

London, United Kingdom

NHS Tayside /ID# 217389

🇬🇧

Dundee, Scotland, United Kingdom

Baylor College of Medicine /ID# 215401

🇺🇸

Houston, Texas, United States

Perron Institute /ID# 215944

🇦🇺

Nedlands, Western Australia, Australia

Hospital General Universitario de Elche /ID# 215425

🇪🇸

Elche, Alicante, Spain

Clinique Neuro Levis /ID# 215371

🇨🇦

Lévis, Quebec, Canada

National Center of Neurology and Psychiatry /ID# 218763

🇯🇵

Kodaira-shi, Tokyo, Japan

Universitair Ziekenhuis Leuven /ID# 215684

🇧🇪

Leuven, Vlaams-Brabant, Belgium

St. Antonius Ziekenhuis /ID# 215396

🇳🇱

Nieuwegein, Netherlands

AZ Sint-Jan Brugge /ID# 215686

🇧🇪

Brugge, Belgium

Groupe Sante CHC - Clinique du MontLegia /ID# 215685

🇧🇪

Liege, Belgium

City Clinical Hospital #40 /ID# 218870

🇷🇺

Sestroretsk, Sankt-Peterburg, Russian Federation

University of Calgary - Movement Disorders Clinic /ID# 215369

🇨🇦

Calgary, Alberta, Canada

Derriford Hospital and the Royal Eye Infirmary /ID# 217390

🇬🇧

Plymouth, Devon, United Kingdom

Bispebjerg and Frederiksberg Hospital /ID# 215391

🇩🇰

Copenhagen NV, Hovedstaden, Denmark

Aarhus Universitetshospital - Skejby /ID# 215392

🇩🇰

Aarhus, Midtjylland, Denmark

Odense University Hospital /ID# 215390

🇩🇰

Odense, Syddanmark, Denmark

University of Alabama at Birmingham - Main /ID# 215597

🇺🇸

Birmingham, Alabama, United States

Univ Texas HSC San Antonio /ID# 215400

🇺🇸

San Antonio, Texas, United States

Sahlgrenska Universitetssjukhuset /ID# 215387

🇸🇪

Göteborg, Vastra Gotalands Lan, Sweden

University of Colorado Hospital /ID# 215625

🇺🇸

Aurora, Colorado, United States

Banner Sun Health Research Institute /ID# 215579

🇺🇸

Sun City, Arizona, United States

Parkinson's Disease and Movement Disorders Center of Boca Raton /ID# 215412

🇺🇸

Boca Raton, Florida, United States

Indiana Clinical Research Cent /ID# 216490

🇺🇸

Indianapolis, Indiana, United States

Univ Kansas Med Ctr /ID# 215624

🇺🇸

Kansas City, Kansas, United States

Dartmouth-Hitchcock Medical Center /ID# 216834

🇺🇸

Lebanon, New Hampshire, United States

M3 Wake Research Inc. /ID# 215596

🇺🇸

Raleigh, North Carolina, United States

Legacy Medical Group - Neurology /ID# 215536

🇺🇸

Portland, Oregon, United States

Inland Northwest Research /ID# 215533

🇺🇸

Spokane, Washington, United States

Westmead Hospital /ID# 215941

🇦🇺

Westmead, New South Wales, Australia

Hospital Universitario Virgen de las Nieves /ID# 215431

🇪🇸

Granada, Spain

Hospital Santa Creu i Sant Pau /ID# 215429

🇪🇸

Barcelona, Spain

Hospital Universitario Virgen del Rocio /ID# 215428

🇪🇸

Sevilla, Spain

© Copyright 2025. All Rights Reserved by MedPath