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Upper Limb SpasticityPhase 1NCT05956509

Study of Intramuscular Injections of ABBV-950 to Assess Adverse Events and Change in Disease Activity in Adult Participants With Upper Limb Spasticity

A Phase 1 study testing ABBV-950 and BOTOX in people with Upper Limb Spasticity, run by AbbVie at 9 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Spasticity is often observed as muscle tightness and stiffness in the upper and/or lower limbs. Upper limb spasticity can interfere with joint movement and its severity can range from mild to severe. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Upper Limb Spasticity
What is being tested?
ABBV-950 and BOTOX
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
1 participants
Where
9 sitesUnited States
Study dates
12 Jan 2024to 2 Jun 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of upper limb spasticity due to stroke, with most recent stroke occurring at least 12 weeks prior to the Screening visit.
  • Modified Ashworth Scale-Bohannon (MAS-B) score of >= 3 in the wrist flexors, and a score of >= 1+ in the finger flexors and MAS-B score of >= 2 elbow flexors at both Screening and Visit 2 (Baseline).

Who cannot join

  • Additional strokes in the 12 weeks preceding the most recent stroke and in the opinion of the investigator, is not at significant risk of experiencing another stroke during the study period.
  • Spasticity in the contralateral upper limb that requires treatment.
  • Presence of fixed contractures in muscles of wrist, elbow, fingers.
  • Botulinum toxin treatment of any serotype in the 20 weeks prior to Day for upper limb spasticity and in the 12 weeks prior to Day 1 for any indication other than upper limb spasticity.
  • Previous surgical intervention, nerve block, or muscle block for the treatment of spasticity in the study limb in the last 12 months.
  • Injection of corticosteroids or anesthetics in the study limb within 12 weeks.
  • Casting of the upper limbs within 12 weeks.
  • Diagnosis of myasthenia gravis, Eaton-Lambert syndrome, and/or amyotrophic lateral sclerosis.

Trial locations and contacts

9 sites in 1 country.

9 sites in 1 country

United States9 sites
  • North County Neurology Associates /ID# 256333

    Carlsbad, California, 92011-4213

  • University of Missouri Hospital /ID# 255310

    Columbia, Missouri, 65212

  • Ut Southwestern Medical Center /Parkland Health and Hospital System /Id# 255328

    Dallas, Texas, 75235-7709

  • Rancho Los Amigos National Rehabilitation center /ID# 255335

    Downey, California, 90242

  • Neuro Pain Medical Center /ID# 256036

    Fresno, California, 93710-5473

  • JEM Research Institute /ID# 258782

    Lake Worth, Florida, 33462-1141

  • Kansas Institute of Research /ID# 254998

    Overland Park, Kansas, 66211-1363

  • New England Institute for Clinical Research /ID# 255020

    Stamford, Connecticut, 06905

  • MedStar National Rehabilitation Hospital /ID# 255630

    Washington D.C., District of Columbia, 20010

Other trials in United States

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Study to Evaluate Safety, Efficacy, and Tolerability of ABBV-950 for the Treatment of Upper Limb Spasticity in Adult Post-Stroke Patients

Spasticity is often observed as muscle tightness and stiffness in the upper and/or lower limbs. Upper limb spasticity can interfere with joint movement and its severity can range from mild to severe. Common causes of spasticity include cerebral palsy, traumatic brain injury, multiple sclerosis, spinal cord injury, and stroke. This study will assess how safe and effective ABBV-950 is in treating upper limb spasticity in adult post-stroke participants. Adverse events and change in symptoms will be assessed.

ABBV-950 in an investigational drug being developed for treating spasticity. This study is conducted in 2 parts. In Part 1, participants are assigned to receive different doses of ABBV-950 or placebo. There is 1 in 4 chance that participants will be assigned to receive placebo. In Part 2, participants will be randomly assigned to receive BOTOX, ABBV-950, or placebo. There is 1 in 5 chance for participants to receive placebo. Approximately 297 adult post-stroke participants with upper limb spasticity will be enrolled at approximately 50 sites in the United States.

Read more

In Part 1, participants will receive intramuscular (IM) injections of ABBV-950 or placebo on Day 1. In Part 2, participants will receive IM injections of BOTOX, ABBV-950, or placebo on Day 1. All participants will be followed for 24 weeks.

There may be higher treatment burden for participants in this trial compared to the standard of care. Participants will attend regular clinic visits during the study. The effect of the treatment will be checked by medical assessments, checking for side effects and completing questionnaires.

Being tested
ABBV-950, BOTOX, Placebo for ABBV-950
Keywords
Spasticity, Upper Limb Spasticity, Stroke, ABBV-950, Botulinum toxin type A
Medical subject headings
Muscle Spasticity, Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ABBV-950Biological

    Also called Botulinum toxin type A

    Intramuscular (IM) Injection

  • BOTOXBiological

    Also called OnabotulinumtoxinA

    Intramuscular (IM) Injection

  • Placebo for ABBV-950Drug

    Intramuscular (IM) Injection

Study groups in NCT05956509
Study groupRoleWhat they receive
Part 1: ABBV-950 Dose AExperimentalParticipants will receive ABBV-Dose A on Day 1.
Receives: Biological: ABBV-950
Part 1: Placebo for ABBV-950 Dose APlacebo comparatorParticipants will receive placebo for ABBV-950 on Day 1.
Receives: Drug: Placebo for ABBV-950
Part 1: ABBV-950 Dose BExperimentalParticipants will receive ABBV-950 Dose B on Day 1.
Receives: Biological: ABBV-950
Part 1: Placebo for ABBV-950 Dose BPlacebo comparatorParticipants will receive placebo for ABBV-950 on Day 1.
Receives: Drug: Placebo for ABBV-950
Part 1: ABBV-950 Dose CExperimentalParticipants will receive ABBV-950 Dose C on Day 1.
Receives: Biological: ABBV-950
Part 1: Placebo for ABBV-950 Dose CPlacebo comparatorParticipants will receive placebo for ABBV-950 on Day 1.
Receives: Drug: Placebo for ABBV-950
Part 2: BOTOX Dose AActive comparatorParticipants will receive BOTOX Dose A on Day 1.
Receives: Biological: BOTOX
Part 2: ABBV-950 Dose AExperimentalParticipants will receive ABBV-950 Dose A on Day 1.
Receives: Biological: ABBV-950
Part 2: ABBV-950 Dose BExperimentalParticipants will receive ABBV-950 Dose B on Day 1.
Receives: Biological: ABBV-950
Part 2: ABBV-950 Dose CExperimentalParticipants will receive ABBV-950 Dose C on Day 1.
Receives: Biological: ABBV-950
Part 2: Placebo for ABBV-950Placebo comparatorParticipants will receive placebo for ABBV-950 on Day 1.
Receives: Drug: Placebo for ABBV-950

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in Wrist Modified Ashworth Scale-Bohannon (MAS-B)

    MAS-B measures muscle tone based on grading the resistance encountered in a specific muscle group by means of passively moving a limb through its range of motion at a study-specified velocity. Score ranges from 0 (No increase in muscle tone) through 4 (Affected part(s) rigid in flexion or extension).

    Measured: Up to Week 6

  2. Number of Participants Experiencing Adverse Events

    An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study.

    Measured: Up to Week 24

Secondary outcomes (3)
  1. Change in Clinician Global Impression of Change (CGI-C) Score

    CGI-C is a 9-point rating scale used to measure the clinician's impression of overall treatment response since the first dose of study intervention. CGI-C scores range from -4 = very marked worsening to +4 = very marked improvement.

    Measured: Up to Week 6

  2. Change in Clinician Global Impression of Severity (CGI-S) Score

    CGI-S is a 5-point rating scale used to measure the clinician's or trained personnel's impression of the current severity of the participant's upper limb spasticity. Scores range from 0 = no spasticity to 4 = very severe.

    Measured: Up to Week 6

  3. Percentage of Participants Achieving Wrist MAS-B Responder Status

    MAS-B measures muscle tone based on grading the resistance encountered in a specific muscle group by means of passively moving a limb through its range of motion at a study-specified velocity. Score ranges from 0 (No increase in muscle tone) through 4 (Affected part(s) rigid in flexion or extension). Responder is defined as participant with >= 1 grade improvement from baseline.

    Measured: Up to Week 6

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jul 2023
  2. Study start12 Jan 2024
  3. Primary completion2 Jun 2024
  4. Study completion2 Jun 2024

Why it stopped: Strategic considerations

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05956509
Sponsor's protocol ID
M23-499
Status last verified
Jun 2024
First submitted
14 Jul 2023
Last updated
1 Jul 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: AbbVie is committed to responsible clinical trial data sharing. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ABBV-950 and BOTOX in people with Upper Limb Spasticity, run by AbbVie at 9 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 1 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Strategic considerations). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in Wrist Modified Ashworth Scale-Bohannon (MAS-B) (time frame: Up to Week 6). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Jul 2024.

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