Treatment for Achilles Tendinopathy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00835939
Recruitment Status : Unknown
Verified February 2009 by University of Calgary.
Recruitment status was:  Active, not recruiting
First Posted : February 4, 2009
Last Update Posted : February 4, 2009
Sport Science Association of Alberta (SSAA)
Information provided by:
University of Calgary

Brief Summary:
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.

Condition or disease Intervention/treatment Phase
Achilles Tendinopathy Achilles Tendon Enthesopathy Mid-Portion Achilles Tendinopathy Insertional Achilles Tendinopathy Non-Insertional Achilles Tendinopathy Drug: 25% Dextrose and 1% Lidocaine Drug: Lidocaine Procedure: sclerotherapy Phase 2 Phase 3

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 : Interventional  (Clinical Trial)
Actual Enrollment : 17 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Treatment for Achilles Tendinopathy
Study Start Date : September 2007
Estimated Primary Completion Date : January 2010

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Tendinitis
U.S. FDA Resources

Arm Intervention/treatment
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

Primary Outcome Measures :
  1. Victorian Institute for Sport Assessment - Achilles [ Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year ]

Secondary Outcome Measures :
  1. 100 mm Visual Analog Scale [ Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year ]
  2. Tegner Activity Scale [ Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks, 6 months, 1 year ]
  3. Number of Neovessels [ Time Frame: Baseline, 4 weeks, 8 weeks, 12 weeks ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00835939

Canada, Alberta
University of Calgary
Calgary, Alberta, Canada, T2N 1N4
Sponsors and Collaborators
University of Calgary
Sport Science Association of Alberta (SSAA)
Principal Investigator: J Preston Wiley, MD, MPE University of Calgary

Responsible Party: Dr. J Preston Wiley, University of Calgary Identifier: NCT00835939     History of Changes
Other Study ID Numbers: UC-20903-RR
First Posted: February 4, 2009    Key Record Dates
Last Update Posted: February 4, 2009
Last Verified: February 2009

Keywords provided by University of Calgary:
sports medicine
interventional radiology

Additional relevant MeSH terms:
Muscular Diseases
Musculoskeletal Diseases
Tendon Injuries
Wounds and Injuries
Anesthetics, Local
Central Nervous System Depressants
Physiological Effects of Drugs
Sensory System Agents
Peripheral Nervous System Agents
Anti-Arrhythmia Agents
Voltage-Gated Sodium Channel Blockers
Sodium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action