An Early Phase 1 interventional study of Active XIAFLEX Collagenase injection in Contracture, sponsored by The University of Texas Health Science Center, Houston. Not yet recruiting at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-07-09.
Sponsored by The University of Texas Health Science Center, Houston · Early Phase 1, Interventional, and Treatment
The overall goal is to investigate the effectiveness of a novel intervention - Collagenase injection, for contracture management in patients with neurological impairments, such as stroke, brain injury, and spinal cord injury.
79 studies on the registry are indexed under Contracture; 18 are open to participants now.
This study's planned enrollment of 15 is below the median of 33 across 62 interventional studies indexed under Contracture.
Browse Contracture studies →The University of Texas Health Science Center, Houston is the lead sponsor of 897 studies on the registry; 214 are open to participants now.
Of its 173 completed or terminated interventional studies of FDA-regulated products, 142 (82%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Biological: Active XIAFLEX Collagenase injection
Collagenase is an enzyme that breaks down collagen, which is a key component of connective tissue, such as fascia. XIAFLEX is an FDA-Approved collagenase for treatment of Dupuytren's contracture with a palpable cord in the fingers, and Peyronie's disease in the penile tissue. In this research project, we plan to use collagenase to treat contracture in patients with neurological impairments, such as stroke, brain injury, and spinal cord injury. FDA guidelines will be followed for dosing and patient selection to minimize or reduce the risks.
Change in spasticity as assessed by the Modified Ashworth Scale (MAS)
The Modified Ashworth Scale (MAS) evaluates the increase in muscle tone associated with upper motor neuron lesions. MAS scores will be recorded for the target muscle group(s) at each assessment time point.Scores range from 0 to 4, with an additional grade of 1+ between 1 and 2. Scores are defined as: 0 = no increase in muscle tone; 1 = slight increase in muscle tone with a catch and release or minimal resistance at the end of the range of motion; 1+ = slight increase in muscle tone with a catch followed by minimal resistance through less than half of the range of motion; 2 = more marked increase in muscle tone through most of the range of motion, but the affected part is easily moved; 3 = considerable increase in muscle tone, passive movement difficult; 4 = affected part rigid in flexion or extension.Lower MAS scores indicate reduced spasticity and improved muscle tone, whereas higher scores indicate greater spasticity.
Time frame: Baseline before the intervention, follow up visits at 2 days (24 to 72 hours), 2 weeks, 1 month and 3 months post-injections
Safety as assessed by the number of adverse events
Adverse events include 1. Serious complications of XIAFLEX injection include tendon rupture, serious ligament damage, or skin laceration that may result in the inability to fully bend the joint and may require surgery to correct the complication. 2. XIAFLEX injection is likely to result in swelling, bruising, bleeding, and/or pain of the injected site and surrounding tissue.
Time frame: From baseline to end of study (3 months post-injections)
Change in range of motion of target joints as assessed by the Passive Range of Motion (PROM)
Range of motion (ROM) refers to the degree of movement available at a joint, measured in degrees using a goniometer. For PROM, the examiner will move the joint to its maximal pain-free range. Measurements will be recorded in degrees, and higher values indicate greater joint mobility.
Time frame: Baseline before the intervention, follow up visits at 2 days (24 to 72 hours), 2 weeks, 1 month and 3 months post-injections
Change in range of motion of target joints as assessed by the Active Range of Motion (AROM)
Range of motion (ROM) refers to the degree of movement available at a joint, measured in degrees using a goniometer. For AROM, participants will be instructed to move the joint as far as possible without assistance. Measurements will be recorded in degrees, and higher values indicate greater joint mobility.
Time frame: Baseline before the intervention, follow up visits at 2 days (24 to 72 hours), 2 weeks, 1 month and 3 months post-injections
Plan to share: No
No publications or documents are linked to this record.
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
The University of Texas Health Science Center, Houston →