NCT06274151

Brief Summary

Acute muscle strain injuries occur both during sports, in leisure time activities and during manual occupation and represent a major clinical challenge and has societal economic costs. The recovery time is long and a substantial injury recurrence is observed. Despite current best evidence rehabilitation with early mechanical loading, a significant loss of muscle mass, fatty infiltration and formation of scar tissue is reported. Animal models and human in vitro experiments suggest that inflammation is vital in the early period after an injury, however an inhibition of inflammatory processes is beneficial for healing. We investigate here whether a pharmacological inhibition of inflammatory pathways in the 2nd week following a muscle strain injury will provide a better clinical outcome and an advantageous cellular profile than rehabilitative training alone would.

Trial Health

65
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Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
45mo left

Started Feb 2024

Longer than P75 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 Progress38%
Feb 2024Dec 2029

First Submitted

Initial submission to the registry

January 30, 2024

Completed
16 days until next milestone

Study Start

First participant enrolled

February 15, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 23, 2024

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2025

Completed
4.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2029

Expected
Last Updated

February 23, 2024

Status Verified

January 1, 2024

Enrollment Period

1.5 years

First QC Date

January 30, 2024

Last Update Submit

February 15, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Effect of anti-inflammatory medicine on cellular profile in skeletal muscle

    Single-nuclei RNA sequencing (seq) of muscle tissue after a strain injury. Single nuclei RNA seq will be performed on biopsies obtained in week 1 after the strain injury. The cellular profile will be compared to the contralateral healthy muscle. Another biopsy, in both the injured and contralateral healthy muscle will be taken in week 3 post injury to investigate the effect of one week of Naproxen treatment versus inert placebo pills on the cellular profile measured with single nuclei RNA seq.

    12 months

Secondary Outcomes (3)

  • Functional outcome performance

    Up to 12 months

  • Functional outcome re-injury rate

    12 months

  • Functional outcome Patient Related Outcome Measures (PROM)

    12 months

Study Arms (2)

Anti-inflammatory medicine

EXPERIMENTAL

Week 2 after muscle strain injury Naproxen 500mg 2x daily

Drug: Naproxen 500 MgProcedure: Rehabilitation

Placebo

PLACEBO COMPARATOR

Week 2 after muscle strain injury Placebo pill, no active compounds 2x daily

Procedure: RehabilitationDrug: Placebo

Interventions

Attenuating the sub-acute inflammatory processes to monitor potential beneficial tissue healing following a muscle strain injury

Also known as: Anti-inflammatory Agents, Non-steroidal
Anti-inflammatory medicine

Rehabilitation after muscle strain injury

Also known as: Physical therapy to stimulate tissue healing
Anti-inflammatory medicinePlacebo

Sub-acute inflammatory processes not attenuated. Group will be treated as control to monitor tissue healing following a muscle strain injury without pharmacological intervention.

Also known as: inert pills
Placebo

Eligibility Criteria

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

You may qualify if:

  • Sports-active individuals with an acute muscle train injury in either the hamstrings or calf muscle caused by an explosive movement (during sprinting, jumping etc)
  • Age older than 18 years

You may not qualify if:

  • Lack of hypoechoic/ hyperechoic area on ultrasound
  • Diabetes type I and II
  • Connective tissue disorders, rheumatism or any other chronic disease affecting the musculoskeletal system
  • Anticoagulant medication
  • Needle phobia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (11)

  • Ekstrand J, Hagglund M, Walden M. Injury incidence and injury patterns in professional football: the UEFA injury study. Br J Sports Med. 2011 Jun;45(7):553-8. doi: 10.1136/bjsm.2009.060582. Epub 2009 Jun 23.

    PMID: 19553225BACKGROUND
  • Wangensteen A, Tol JL, Witvrouw E, Van Linschoten R, Almusa E, Hamilton B, Bahr R. Hamstring Reinjuries Occur at the Same Location and Early After Return to Sport: A Descriptive Study of MRI-Confirmed Reinjuries. Am J Sports Med. 2016 Aug;44(8):2112-21. doi: 10.1177/0363546516646086. Epub 2016 May 16.

    PMID: 27184543BACKGROUND
  • Chazaud B. Inflammation during skeletal muscle regeneration and tissue remodeling: application to exercise-induced muscle damage management. Immunol Cell Biol. 2016 Feb;94(2):140-5. doi: 10.1038/icb.2015.97. Epub 2015 Nov 3.

    PMID: 26526620BACKGROUND
  • Saclier M, Yacoub-Youssef H, Mackey AL, Arnold L, Ardjoune H, Magnan M, Sailhan F, Chelly J, Pavlath GK, Mounier R, Kjaer M, Chazaud B. Differentially activated macrophages orchestrate myogenic precursor cell fate during human skeletal muscle regeneration. Stem Cells. 2013 Feb;31(2):384-96. doi: 10.1002/stem.1288.

    PMID: 23169615BACKGROUND
  • Wynn TA, Vannella KM. Macrophages in Tissue Repair, Regeneration, and Fibrosis. Immunity. 2016 Mar 15;44(3):450-462. doi: 10.1016/j.immuni.2016.02.015.

    PMID: 26982353BACKGROUND
  • Bayer ML, Hoegberget-Kalisz M, Svensson RB, Hjortshoej MH, Olesen JL, Nybing JD, Boesen M, Magnusson SP, Kjaer M. Chronic Sequelae After Muscle Strain Injuries: Influence of Heavy Resistance Training on Functional and Structural Characteristics in a Randomized Controlled Trial. Am J Sports Med. 2021 Aug;49(10):2783-2794. doi: 10.1177/03635465211026623. Epub 2021 Jul 15.

    PMID: 34264782BACKGROUND
  • Bayer ML, Magnusson SP, Kjaer M; Tendon Research Group Bispebjerg. Early versus Delayed Rehabilitation after Acute Muscle Injury. N Engl J Med. 2017 Sep 28;377(13):1300-1301. doi: 10.1056/NEJMc1708134. No abstract available.

    PMID: 28953439BACKGROUND
  • Bayer ML, Hoegberget-Kalisz M, Jensen MH, Olesen JL, Svensson RB, Couppe C, Boesen M, Nybing JD, Kurt EY, Magnusson SP, Kjaer M. Role of tissue perfusion, muscle strength recovery, and pain in rehabilitation after acute muscle strain injury: A randomized controlled trial comparing early and delayed rehabilitation. Scand J Med Sci Sports. 2018 Dec;28(12):2579-2591. doi: 10.1111/sms.13269. Epub 2018 Aug 16.

    PMID: 30043997BACKGROUND
  • Silder A, Sherry MA, Sanfilippo J, Tuite MJ, Hetzel SJ, Heiderscheit BC. Clinical and morphological changes following 2 rehabilitation programs for acute hamstring strain injuries: a randomized clinical trial. J Orthop Sports Phys Ther. 2013 May;43(5):284-99. doi: 10.2519/jospt.2013.4452. Epub 2013 Mar 13.

    PMID: 23485730BACKGROUND
  • Cohen S, Nathan JA, Goldberg AL. Muscle wasting in disease: molecular mechanisms and promising therapies. Nat Rev Drug Discov. 2015 Jan;14(1):58-74. doi: 10.1038/nrd4467.

    PMID: 25549588BACKGROUND
  • Bayer ML, Bang L, Hoegberget-Kalisz M, Svensson RB, Olesen JL, Karlsson MM, Schjerling P, Hellsten Y, Hoier B, Magnusson SP, Kjaer M. Muscle-strain injury exudate favors acute tissue healing and prolonged connective tissue formation in humans. FASEB J. 2019 Sep;33(9):10369-10382. doi: 10.1096/fj.201900542R. Epub 2019 Jun 18.

    PMID: 31211922BACKGROUND

MeSH Terms

Conditions

Sprains and StrainsInflammation

Interventions

NaproxenAnti-Inflammatory Agents, Non-SteroidalRehabilitation

Condition Hierarchy (Ancestors)

Wounds and InjuriesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Naphthaleneacetic AcidsNaphthalenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPolycyclic CompoundsAnalgesics, Non-NarcoticAnalgesicsSensory System AgentsPeripheral Nervous System AgentsPhysiological Effects of DrugsPharmacologic ActionsChemical Actions and UsesAnti-Inflammatory AgentsTherapeutic UsesAntirheumatic AgentsAftercareContinuity of Patient CarePatient CareTherapeuticsHealth ServicesHealth Care Facilities Workforce and Services

Study Officials

  • Michael L Kjaer, DMSCi

    Bispebjerg Hospital

    STUDY DIRECTOR

Central Study Contacts

Monika Lucia L Bayer, PhD

CONTACT

Simon E Jespersen, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Researcher

Study Record Dates

First Submitted

January 30, 2024

First Posted

February 23, 2024

Study Start

February 15, 2024

Primary Completion

July 31, 2025

Study Completion (Estimated)

December 31, 2029

Last Updated

February 23, 2024

Record last verified: 2024-01