Treatment for Achilles Tendinopathy

February 3, 2009 updated by: University of Calgary
The purpose of this study is to determine whether sclerotherapy using a 25% dextrose and 1% lidocaine solution is an efficacious treatment for patients with chronic Achilles tendinopathy who have failed a home based, heavy load eccentric training program.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The purpose of this research project is to optimize the clinical outcome of patients with Achilles tendinopathy. Patients who fail a standardized physical therapy regiment (eccentric training protocol) will be randomly allocated into two groups with one group receiving an injection of hypertonic glucose and Lidocaine (sclerosing solution) and the other receiving an injection of Lidocaine (control). Neovascularisation (growth of new blood vessels and nerves into a damaged area of the tendon) appears to be associated with pain and subsequently a decrease in function and use of the affected tendon. Results of an observational study in Sweden revealed that in all patients for which eccentric training was unsuccessful neovascularisation was present. Sclerosis of neovessels appears to be successful in removing the pain associated with Achilles tendinopathy in both mid-portion and enthesitis patients. However, there are no studies that have administered this technique to a homogenous patient population in a prospective, controlled and randomized manner. In addition, there are no studies that have compared the effects of eccentric training in healthy individuals versus patients with painful Achilles tendinopathy in a controlled longitudinal study. It is expected that patients for whom eccentric training is unsuccessful and who subsequently receive sclerosing therapy will show a statistically significant improvement in pain and function.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
17

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Alberta
      • Calgary, Alberta, Canada, T2N 1N4
        • University Of Calgary

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults 18 years of age and older with a minimum of 3 months of clinically determinant history and symptoms (pain) consistent with unilateral Achilles tendinopathy (enthesitis or mid-portion) as diagnosed by a sport medicine physician.
  • Participants are not required to have tried other treatments, however, those who have tried other treatments (except injection treatments) including, but not restricted to, oral NSAIDs, topical NSAIDs, shoe modifications, and physical/athletic therapy will not be restricted from the study
  • Provide informed consent for the controlled longitudinal study and RCT

Exclusion Criteria:

  • Individuals with physical ailments precluding them from performing the eccentric training program
  • Worker's Compensation Board (WCB) and elite athletes (varsity, national and professional level).
  • Individuals younger than 18 years of age will be excluded from this trial due to the complicating factors of musculoskeletal immaturity and the lack of relevant research of Achilles tendinopathy and neovascular bundles in this population.
  • Previous Achilles tendon rupture of the tendon in question
  • Individuals that have received any type of injection in or around the Achilles tendon
  • Known allergy to dextrose based sclerosing agent or other contraindications
  • Known allergy to Lidocaine

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 25% Dextrose and 1% Lidocaine
Drug: 25% Dextrose and 1% Lidocaine
Up to 3 injections provided to neovessels outside of the tendon
Procedure: sclerotherapy
Placebo Comparator: Lidocaine
Drug: Lidocaine
Up to 3 injections provided to neovessels outside of the tendon

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Victorian Institute for Sport Assessment - Achilles
Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year
Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
100 mm Visual Analog Scale
Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year
Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year
Tegner Activity Scale
Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year
Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year
Number of Neovessels
Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks
Baseline, 4 weeks, 8 weeks, 12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Calgary

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Sport Science Association of Alberta (SSAA)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: J Preston Wiley, MD, MPE, University Of Calgary

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2007

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2010

Study Completion

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 7, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 3, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 3, 2009

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 4, 2009

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 4, 2009

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 3, 2009

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • UC-20903-RR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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