NCT06727344

Brief Summary

The goal of this randomised clinical trial is to evaluate the effects of exercise with blood flow restriction (BFR) in patients with a complete anterior cruciate ligament (ACL) rupture. The main questions it aims to answer are:

  1. 1.Does blood flow restriction adds any additional benefits to conservative treatment of the ACL?
  2. 2.Does bracing promotes spontaneous healing to the ACL
  3. 3.Use a knee brace for 6 weeks with adjustments according to protocol
  4. 4.Follow and identical exercise plan with either BFR (intervention group) or BFR sham (control group)
  5. 5.Follow a home based exercise program.

Trial Health

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Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

2 active sites

Status
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

First Submitted

Initial submission to the registry

November 30, 2024

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 10, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2025

Completed
Last Updated

April 3, 2025

Status Verified

November 1, 2024

Enrollment Period

7 months

First QC Date

November 30, 2024

Last Update Submit

March 29, 2025

Conditions

Keywords

BFRBlood Flow RestrictionBraceACL ruptureACL

Outcome Measures

Primary Outcomes (1)

  • Strength

    Quadriceps strength using a hand held dynamometer

    Enrolment, week 2 and 4, end of intervention (12 weeks)

Secondary Outcomes (7)

  • MRI

    Enrolment and end of intervention at 12 weeks

  • Knee laxity

    enrolment and end of intervention at 12 weeks

  • Balance

    enrolment and end of intervention at 12 weeks

  • Swelling

    enrolment and end of intervention at 12 weeks

  • Visual analog scale (VAS)

    enrolment, week 2 and 4 and end of intervention at 12 weeks

  • +2 more secondary outcomes

Study Arms (2)

Brace and BFR exercise

EXPERIMENTAL
Other: Blood Flow RestrictionOther: Brace

Brace and BFR sham

SHAM COMPARATOR
Other: Brace

Interventions

Exercise with restriction of blood flow supply

Brace and BFR exercise
BraceOTHER

Knee brace to restrict range of motion

Brace and BFR exerciseBrace and BFR sham

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • MRI-confirmed complete rupture of ACL. Ability to communicate and read fluently in Greek and be willing to keep their leg immobilised for the required period based on the study protocol.

You may not qualify if:

  • Heart disease, overweight, diabetes, pregnancy, thrombophilia, atrial fibrillation, heart failure, cancer, use of drugs that may increase blood clotting, use of hormones or contraceptives, any reason for not using BFR e.g., an open wound or serious skin problems and/or allergies to the cuff material.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

European University Cyprus

Nicosia, 2404, Cyprus

RECRUITING

European University Cyprus

Nicosia, 2404, Cyprus

RECRUITING

Related Publications (3)

  • Pitsillides A, Stasinopoulos D, Giannakou K. Healing potential of the anterior cruciate ligament in terms of fiber continuity after a complete rupture: A systematic review. J Bodyw Mov Ther. 2021 Oct;28:246-254. doi: 10.1016/j.jbmt.2021.06.003. Epub 2021 Jun 12.

    PMID: 34776148BACKGROUND
  • Filbay SR, Dowsett M, Chaker Jomaa M, Rooney J, Sabharwal R, Lucas P, Van Den Heever A, Kazaglis J, Merlino J, Moran M, Allwright M, Kuah DEK, Durie R, Roger G, Cross M, Cross T. Healing of acute anterior cruciate ligament rupture on MRI and outcomes following non-surgical management with the Cross Bracing Protocol. Br J Sports Med. 2023 Dec;57(23):1490-1497. doi: 10.1136/bjsports-2023-106931. Epub 2023 Jun 14.

    PMID: 37316199BACKGROUND
  • Pitsillides A, Constantinou A, Karagiannis C, Giannakou K. Conservative treatment using blood flow restriction and brace in individuals with complete anterior cruciate ligament rupture: protocol for a randomised clinical trial. J Orthop Surg Res. 2025 Dec 1;21(1):10. doi: 10.1186/s13018-025-06285-y.

MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries

Interventions

Blood Flow Restriction TherapyBraces

Condition Hierarchy (Ancestors)

Knee InjuriesLeg InjuriesWounds and Injuries

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesOrthotic DevicesOrthopedic EquipmentSurgical EquipmentEquipment and Supplies

Central Study Contacts

Alexis N Pitsillides, PhD candidate

CONTACT

Christos Karagiannis, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Alexios Pitsillides BSc, MSc, PhD (cand)

Study Record Dates

First Submitted

November 30, 2024

First Posted

December 10, 2024

Study Start

February 1, 2025

Primary Completion

September 1, 2025

Study Completion

September 1, 2025

Last Updated

April 3, 2025

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

To keep the study double blinded

Locations