The Use of Botox in Advanced Parkinson's Patients Experiencing Pain

Status Active, not recruiting

Clinical Trial Summary

Most Parkinsonism related pain can be assigned to one or more of five categories: musculoskeletal pain, neuritic or radicular pain, dystonia associated pain, primary or central pain, and akathitic discomfort. In PD pain tends to affect the side of the body that was initially, or more severe affected by the motor symptoms. Botulinum toxins are an effective treatment modality for a growing number of neurological conditions. They have been studied for a variety of conditions associated with PD including dystonia, jaw tremor, apraxia of eyelid opening, camptocormia, dyskinesias, freezing of gait, sialhorrea, overactive bladder and constipation. There are no studies for the use of Botulinum Toxin for pain in PD. The investigators will perform a double-blind, randomized cross-over study evaluating the efficacy and safety of an individual pattern of BTXA injections targeted at painful muscles vs. placebo injection.

Clinical Trial Description

The investigators will perform a double-blind, randomized cross-over study evaluating the efficacy and safety of an individual pattern of BTXA injections targeted at painful muscles vs. placebo injection. Primary outcome will be a measure of global pain as perceived by the participants. To assess this endpoint the investigators will use:1.

change in pain on a Numeric Rating Scale (NRS) by telephone between BTXA and placebo injections at 4 week post injection and 2.change in Visual Analogue Scale (Edmonton Symptom Assessment System: Numerical Scale) at study visits.

Secondary outcomes will be the percentage of responders, Physician rated Clinical Global Impression (CGI), Unified Parkinson Disease Rating Scale (MDS-UPDRS) on medication, quality of life by Parkinson Disease Questionnaire (PDQ-39) and adverse events as assessed at each study visit. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02472210
Study type	Interventional
Source	University Health Network, Toronto
Contact
Status	Active, not recruiting
Phase	Phase 4
Start date	July 2014
Completion date	September 2015

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.