NCT06601088

Brief Summary

Acute Achilles tendon rupture (ATR) is an injury that is commonly associated with complications, such as blood clotting, muscle loss and tendon lengthening, all of which affect the long-term outcome and return to sports. These complication are related to the treatment of ATR with lower leg immobilization in a boot. The investigators aim to demonstrate that an intervention with calf neuromuscular electrical stimulation (C-NMES) during leg immobilization after ATR can 1) reduce blood clots, 2) lower the degree of muscle loss, 3) decrease tendon lengthening and 4) improve long-term outcome.

Trial Health

65
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Trial Health Score

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

Enrollment
220

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Jan 2025

Typical duration for not_applicable

Status
not yet recruiting

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

Study Progress67%
Jan 2025Dec 2026

First Submitted

Initial submission to the registry

September 7, 2024

Completed
12 days until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
4 months until next milestone

Study Start

First participant enrolled

January 15, 2025

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 15, 2026

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2026

Expected
Last Updated

September 19, 2024

Status Verified

September 1, 2024

Enrollment Period

1.1 years

First QC Date

September 7, 2024

Last Update Submit

September 15, 2024

Conditions

Keywords

neuromuscular electrical stimulationduplex ultrasound

Outcome Measures

Primary Outcomes (1)

  • Incidence of Venous thromboembolic events (VTE)

    VTE, is defined as symptomatic/ asymptomatic DVT assessed at the end of immobilization, i.e. 8 weeks, by compression duplex ultrasound (CDU) screening, or symptomatic pulmonary embolism detected by computer tomography. Assessors of CDU will be skilled ultrasonographists, masked to the treatment allocation. The CDU-examination will document absence/presence of thrombus in the calf, popliteal and femoral veins separately

    8 weeks

Secondary Outcomes (13)

  • Patient function

    12 months

  • Callus production

    8 weeks

  • Treatment adherence

    8 weeks

  • Adverse events

    8 weeks

  • Fasting blood glucose

    8 weeks

  • +8 more secondary outcomes

Study Arms (2)

Control group with standard lower-limb immobilization

NO INTERVENTION

The control group will be treated according to the standard regimen with a lower limb immobilization in a stable orthosis during eight weeks.

Intervention group with additional Neuromuscular Electrical Stimulation'

EXPERIMENTAL

The intervention group will during the eight weeks lower limb immobilization receive an additional intervention with calf Neuromuscular Electrical Stimulation (C-NMES) underneath the orthosis.

Device: Neuromuscular Electrical Stimulation

Interventions

Patients will be instructed to apply the wearable NMES-therapy continuously, both day and night at least 10h/daily.

Also known as: Electrical Stimulation, NMES, C-NMES
Intervention group with additional Neuromuscular Electrical Stimulation'

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosed with acute unilateral Achilles tendon rupture
  • Included within 10 days after injury.

You may not qualify if:

  • Inability to give consent to participate,
  • ongoing treatment with anticoagulants,
  • known allergy to contrast agents,
  • planned follow-up at another hospital,
  • inability to follow instructions,
  • known renal failure,
  • heart failure with pitting edema,
  • thrombophlebitis,
  • thromboembolic disease within the last 3 months,
  • previous surgery of the tendon,
  • known malignancy,
  • hemophilia,
  • pregnancy,
  • treatment with high doses of acetylsalicylic acid.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (5)

  • Alharbi A, Li J, Womack E, Farrow M, Yarar-Fisher C. The Effect of Lower Limb Combined Neuromuscular Electrical Stimulation on Skeletal Muscle Signaling for Glucose Utilization, Myofiber Distribution, and Metabolic Function after Spinal Cord Injury. Int J Environ Res Public Health. 2023 Oct 21;20(20):6958. doi: 10.3390/ijerph20206958.

    PMID: 37887696BACKGROUND
  • Hajibandeh S, Hajibandeh S, Antoniou GA, Scurr JR, Torella F. Neuromuscular electrical stimulation for the prevention of venous thromboembolism. Cochrane Database Syst Rev. 2017 Nov 21;11(11):CD011764. doi: 10.1002/14651858.CD011764.pub2.

    PMID: 29161465BACKGROUND
  • Aufwerber S, Heijne A, Edman G, Silbernagel KG, Ackermann PW. Does Early Functional Mobilization Affect Long-Term Outcomes After an Achilles Tendon Rupture? A Randomized Clinical Trial. Orthop J Sports Med. 2020 Mar 16;8(3):2325967120906522. doi: 10.1177/2325967120906522. eCollection 2020 Mar.

    PMID: 32206673BACKGROUND
  • Aufwerber S, Svedman S, Silbernagel KG, Ackermann PW. Long-term patient outcome is affected by deep venous thrombosis after Achilles tendon rupture repair. Knee Surg Sports Traumatol Arthrosc. 2024 Aug;32(8):2184-2193. doi: 10.1002/ksa.12240. Epub 2024 May 26.

    PMID: 38796725BACKGROUND
  • Svedman S, Marcano A, Ackermann PW, Fellander-Tsai L, Berg HE. Acute Achilles tendon ruptures between 2002-2021: sustained increased incidence, surgical decline and prolonged delay to surgery-a nationwide study of 53 688 ruptures in Sweden. BMJ Open Sport Exerc Med. 2024 Jul 18;10(3):e001960. doi: 10.1136/bmjsem-2024-001960. eCollection 2024.

    PMID: 39040046BACKGROUND

MeSH Terms

Conditions

Venous ThromboembolismMuscular Atrophy

Interventions

Electric Stimulation

Condition Hierarchy (Ancestors)

ThromboembolismEmbolism and ThrombosisVascular DiseasesCardiovascular DiseasesNeuromuscular ManifestationsNeurologic ManifestationsNervous System DiseasesAtrophyPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsSigns and Symptoms

Intervention Hierarchy (Ancestors)

Physical StimulationInvestigative Techniques

Study Officials

  • Paul Ackermann, Prof,MD,PhD

    Karolinska Institutet and Karolinska University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Luigi Belcatro, Res.Nurse

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 7, 2024

First Posted

September 19, 2024

Study Start

January 15, 2025

Primary Completion

February 15, 2026

Study Completion (Estimated)

December 30, 2026

Last Updated

September 19, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will share

On reasonabe request data will be shared.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
June 2025 and will be available 2 years
Access Criteria
On reasonabe request data will be shared.