NCT04725513

Brief Summary

This is a randomized control trial with an elective cross over after three months to evaluate three different treatments in the management of non-insertional Achilles Tendinopathy. The treatment methods include physical therapy, shockwave therapy and photobiomodulation.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
46

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 14, 2021

Completed
12 days until next milestone

First Posted

Study publicly available on registry

January 26, 2021

Completed
1.6 years until next milestone

Study Start

First participant enrolled

August 29, 2022

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2024

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

January 12, 2026

Completed
Last Updated

January 12, 2026

Status Verified

January 1, 2026

Enrollment Period

2 years

First QC Date

January 14, 2021

Results QC Date

October 6, 2025

Last Update Submit

January 9, 2026

Conditions

Outcome Measures

Primary Outcomes (3)

  • Calf Raises Performed to Fatigue and Inability to Continue

    Calf raises performed to fatigue and inability to continue

    Difference from 0-3 months

  • Ultrasound Measurements in Change of Cross Sectional Area

    Changes in the cross-sectional area measured on ultrasound

    Difference from 0-3 months

  • Victorian Institute of Sports Assessment (VISA-A) Questionnaire

    Victorian Institute of Sports Assessment Questionnaire. The score of the questionnaire ranges from 0-100, where 100 is a person who is completely asymptomatic (better).

    change from baseline to 3 month follow-up measure

Study Arms (3)

Physical Therapy Only

ACTIVE COMPARATOR
Other: Physical Therapy

Shockwave Therapy and Physical Therapy

EXPERIMENTAL
Device: Shockwave TherapyOther: Physical Therapy

Photobiomodulation, Shockwave Therapy and Physical Therapy

EXPERIMENTAL
Device: Shockwave TherapyDevice: Photobiomodulation TherapyOther: Physical Therapy

Interventions

Participants will enroll in physical therapy and complete an at-home exercise protocol

Photobiomodulation, Shockwave Therapy and Physical TherapyPhysical Therapy OnlyShockwave Therapy and Physical Therapy

Participants will receive shockwave therapy once a week for three weeks

Photobiomodulation, Shockwave Therapy and Physical TherapyShockwave Therapy and Physical Therapy

Participants will receive photobiomodulation therapy twice a week for three weeks

Photobiomodulation, Shockwave Therapy and Physical Therapy

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • A diagnosis of mid-portion Achilles tendinopathy (including both unilateral and bilateral)
  • Running is the pre-injury primary form of physical activity and pre-injury would complete on average 10 miles per week or more of running
  • VISA-A \<80 at baseline to be eligible

You may not qualify if:

  • Less than 3 months of symptoms
  • Primary insertional Achilles tendinopathy
  • Diagnosis of rheumatological disease/connective tissue condition, symptomatic arthritis of foot and ankle, a primary running related injury outside Achilles tendinopathy, other contraindications to PBMT or SWT
  • Have received SWT within the past 3 months to their Achilles
  • Prior injection within 3 months
  • Currently enrolled in PT for more than 4 weeks for their condition
  • Women who are pregnant.
  • known history of Achilles tendon tear
  • currently taking oral steroid or fluoroquinolone class of antibiotics

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Spaulding Hospital Cambridge

Cambridge, Massachusetts, 02138, United States

Location

Related Publications (2)

  • Tenforde AS, Pham L, Gaudette LW, Funk MM, Vogel KE, Bruneau MM, Yuan X, Schroeder JD, Isaacson B, Hagar N, Metzger E, Nolan DC, Tam J, Silbernagel KG. Exercise, radial pressure waves, and photobiomodulation for management of non-insertional Achilles tendinopathy in runners: a three-arm non-blinded randomised control trial. BMJ Open Sport Exerc Med. 2025 Oct 5;11(4):e002442. doi: 10.1136/bmjsem-2024-002442. eCollection 2025.

  • Tenforde AS, Vogel KEL, Tam J, Silbernagel KG. Research protocol to evaluate the effectiveness of shockwave therapy, photobiomodulation and physical therapy in the management of non-insertional Achilles tendinopathy in runners: a randomised control trial with elective cross-over design. BMJ Open Sport Exerc Med. 2022 Sep 27;8(3):e001397. doi: 10.1136/bmjsem-2022-001397. eCollection 2022.

MeSH Terms

Interventions

Extracorporeal Shockwave TherapyLow-Level Light TherapyPhysical Therapy Modalities

Intervention Hierarchy (Ancestors)

Ultrasonic TherapyDiathermyHyperthermia, InducedTherapeuticsRehabilitationLaser TherapyPhototherapy

Results Point of Contact

Title
Adam Tenforde, MD
Organization
Spaulding Rehabilitation Hospital

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: The first part of the study is a randomized control trial, the second part is an elective cross over
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

January 14, 2021

First Posted

January 26, 2021

Study Start

August 29, 2022

Primary Completion

September 1, 2024

Study Completion

October 1, 2024

Last Updated

January 12, 2026

Results First Posted

January 12, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations