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Exercise study for sore achilles tendons pulled before it began

NCT ID NCT06009536

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aimed to see if a 12-week resistance training program could improve tendon health in people with Achilles tendinopathy, a condition causing pain and swelling in the Achilles tendon. Researchers planned to enroll at least 20 patients who would perform daily exercises that gradually increase load on the tendon. However, the study was withdrawn before any participants were enrolled, so no data was collected.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Achilles tendon loading exercise protocol (Silbernagel resistance training)
What this could lead to
If successful, this could point toward a simple exercise program to ease pain and improve function in people with Achilles tendinopathy.
What could go wrong
The study was withdrawn before enrolling any participants, so no results are available. Even if conducted, it was a small early-stage study with no control group for the main intervention.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Started

Jan 2023

Expected to finish

May 2024

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * the patient shows symptoms of Achilles tendinopathy (pain, swelling and dysfunction in the area of Achilles tendon), which at least partially limit his quality of life during normal or sporting activities, * the patient is in the age group of 18-60 years, * the patient has difficulties in only one lower limb; the second, asymptomatic limb will be considered the reference, * the patient is not aware of any mechanical damage to the tendon in symptomatic limb in the past (e.g. partial or complete rupture as a result of an injury), * the patient has not undergone any treatment aimed at AS in the last 3 months (surgery, corticoid application, plasma therapy, shock waves, physiotherapy, etc.), objective US examination of AS shows structural changes (expansion, neovascularization, focal hypoechoic areas, etc.). Exclusion Criteria: * patient has been diagnosed with a rheumatic disease or a disease of the central nervous system * patient is aware of mechanical damage to the Achilles tendon as a result of an injury in the past.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • University Hospital Motol and 2nd Faculty of Medicine, Charles University

    Prague, Czechia

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