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Shockwave or PRP: which boosts healing for aching achilles?

NCT ID NCT07483320

Symptom relief Sponsor: Spaulding Rehabilitation Hospital Source: ClinicalTrials.gov ↗

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 This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Jul 28, 2026 · Updated 2 times

Summary

This study tests whether adding shockwave therapy or platelet-rich plasma (PRP) injections to a standard exercise program helps people with long-term Achilles tendon pain. One hundred active adults aged 18-65 with symptoms lasting over 3 months will be randomly assigned to exercise alone or exercise plus one or both extra treatments. Researchers will track pain and function for 6 months to see which approach works best.

What this could mean

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

Active substance
platelet-rich plasma (PRP) injection and extracorporeal shockwave therapy (ESWT)
What this could lead to
If successful, this could show that combining shockwave therapy or PRP with exercise improves Achilles tendon pain and function better than exercise alone.
What could go wrong
This is a small, early-stage trial with only 100 participants. Results may not apply to everyone, and some treatments may not provide additional benefit over standard exercise.

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.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

May 2028

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 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Age 18-65 years * Diagnosis of unilateral midportion Achilles tendinopathy * Symptoms present for more than 3 months * VISA-A score \<80 at baseline * Pre-injury physical activity level ≥3 on the Physical Activity Scale * Ability to participate in rehabilitation program Exclusion Criteria: * Symptoms present for less than 3 months * Prior PRP injection or ESWT treatment to the Achilles tendon within 3 months * Other lower extremity musculoskeletal injury affecting function * Symptomatic arthritis affecting the ankle or foot * Rheumatologic disease or connective tissue disorder * Coagulopathy or anticoagulant therapy affecting platelet function * Neuropathy affecting pain perception * Known cardiac condition contraindicating treatment * Poorly controlled diabetes (HbA1c \>9.0) * Pregnancy

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Conditions

The condition(s) this trial relates to.

disease of the tendon tendinitis

As listed by the trial registrant

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

Achilles injuries tendon Achilles tendinitis, left leg Achilles tendinitis, right leg Achilles tendinopathy (AT) Achilles tendon pain Achilles tendonitis

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Spaulding Cambridge Hospital

    Cambridge, Massachusetts, 02138, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.