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Botulinum Toxin Type A for Neuroma Pain

A Prospective, Randomized, Double-Blind, Placebo-Controlled, Crossover Clinical Trial of Botulinum Toxin Type A for Neuroma Pain

Status
Withdrawn
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01374191
Enrollment
0
Registered
2011-06-15
Start date
2015-01-31
Completion date
2017-09-30
Last updated
2015-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neuroma

Keywords

botox, neuroma pain, pain, chronic pain, botulinum toxin, botulinum toxin A, botox and pain, botox and neuroma, botox treatment, onabotulinum, onabotulinum toxin, onabotulinum toxin type A

Brief summary

The purpose of this study is to determine if botulinum toxin type A (Btx-A) is an effective treatment for painful neuromas. The ideal therapy for painful neuromas would be effective, non-addictive, safe, localized, and cost-effective treatment. At the same time, the therapy would also address the complex peripheral and central mechanisms. Btx-A is a potential treatment that addresses each of these requirements while preserving the existing sensation and function. Study Hypothesis: Btx-A injection relieves neuroma pain better than a placebo

Detailed description

PROJECT SUMMARY OVERVIEW: The purpose of this study is to determine if botulinum toxin type A (Btx-A) is an effective treatment for painful neuromas. The ideal therapy for painful neuromas would be effective, non-addictive, safe, localized, and cost-effective, but would also address the complex peripheral and central mechanisms. Btx-A is a potential treatment that addresses each of these requirements while preserving the existing sensation and function. The investigators believe that Btx-A will be effective in eliminating both the exaggerated local pain response and centralization while maintaining an exceptional safety profile and potential for long-term effects without addictive properties. STUDY AIMS: The aims of this proposal are to 1) examine the short-term efficacy of Btx-A injection compared to placebo in treating pain due to nerve damage, and 2) describe the long-term efficacy of Btx-A injection in treating pain due to nerve damage by measuring patient satisfaction and quality of life changes over time. APPROACH: Forty patients will be enrolled; twenty to receive active treatment (Btx-A) and twenty to receive placebo (saline). Comparisons between treatment and placebo will occur during the first 28 days to determine Btx-A's short-term efficacy. Telephone follow-up visits will occur on Day 2 and Week 1. On Day 28, a telephone follow-up visit will occur, except in patients who are experiencing complications. Patients with complications or recurrent pain will return for a clinic visit. Post-assessment on Day 28 marks the beginning of the longitudinal observational study of patient outcomes. Placebo will no longer be used and patients still suffering from pain will be eligible for additional Btx-A injections. Patients may receive up to 4 injections of Btx-A during the 1-year study period if pain recurs. During the study period participants will be followed to collect data on pain-free intervals, subsequent treatment choices, patient satisfaction, and changes in quality of life and function. Group comparisons will be made to analyze results. Further stratifications for data analysis will be made as enrollment numbers allow to control for additional demographic and disease variables. Quality-adjusted life-years will be calculated to help determine the societal and individual cost of this treatment. HYPOTHESIS: The investigators hypothesize that 1) Btx-A injection relieves neuroma pain better than a placebo within 28 days of injection, and 2) Btx-A injection relieves neuroma pain for longer than 28 days, improving patient quality of life. Through this study the investigators intend to further elucidate the efficacy of injected Btx-A on relieving chronic pain from nerve damage while characterizing the patients for whom this treatment is most effective.

Interventions

1 injection of Btx-A

OTHERplacebo

1 injection of saline solution

DRUG2nd phase - onabotulinum toxin type-A

2 - 3 injections of Btx-A, specific to patient pain recurrence

Sponsors

Southern Illinois University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Male or female * aged 18-75 years * diagnosed with neuroma pain * able to return/be available for follow-up evaluations * willingness and ability to give informed consent

Exclusion criteria

* positive for HIV/AIDS or otherwise immunocompromised * history of neuromuscular disease * reported allergy to BOTOX® * history or symptoms of any significant medical problem in the last year (i.e., bradycardia, impaired cardiovascular function, liver disease) * symptoms of infection or illness with initial enrollment * pregnant or lactating women * unable or unwilling to maintain abstinence or use contraception for 28 days following all injections * cognitively impaired patients unable to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
number of pain-free dayschange from baseline to 28 dayssubjective evaluation of pain relief, using Subjective pain scales \[visual analogue scale (VAS) and faces pain assessment\]

Secondary

MeasureTime frameDescription
quality of lifechange from baseline to 28 daysSF-12v2® Health Survey - Pain Enhanced
upper extremity functionchange from baseline to 28 daysQuick-DASH (Disabilities of the Arm, Shoulder, and Hand) Outcome Measure
lower extremity functionchange from baseline to 28 daysLower Extremity Functional Scale (LEFS)
patient satisfactionchange from baseline to 28 daysSF-12v2® Health Survey - Pain Enhanced
quality-adjusted life-yearschange from baseline to 28 daysEuroQol (EQ-5D)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026