NCT02964624

Brief Summary

Osteoarthritis (OA) is the most common type of degenerative joint disease. Furthermore, despite its incidence being amongst the highest in chronic diseases, effective biomarkers, diagnostic aids and imaging technology are not available to assist in the management of OA. Mounting evidence suggests that non-pharmacological treatment such as exercise/physical therapy may lower the risk for onset or progression of OA by mitigating inflammation. However, the mechanical unloading and overloading, as seen in disuse and overuse, lead to upregulation of several proinflammatory molecules and enhance tissue degradation, whereas, dynamic moderate mechanical loading exerts anti-inflammatory and anti-catabolic effects on articular cartilage by suppressing mediators of inflammation. However, the lack of robust biomarkers to measure the effectiveness of physical therapies, represent a critical gap in biotechnology, obliterating the progress in the optimal application of these therapies. Our central hypothesis is that the circulating levels of specific molecules could serve as robust biomarkers for quantitative measures of OA burden, prognosis, progression or treatment efficacy. The objective of this project is to identify and evaluate mediators that serve as biomarkers of OA progression and treatment. Recently, high mobility group box chromosomal protein 1 (HMGB-1) has been suggested to be markedly upregulated in OA. However, presently there are no inhibitors of HMGB1 that could be used therapeutically. Previous results showed that that gentle exercise is the only tool that can mitigate HMGB1 production by local and systemic macrophages, and thus inflammation. Serum concentration of HMGB1 will be evaluate as a biomarker in OA patients and relate it to the functional capacity of knee joints in OA patients after rehabilitation protocol (RP). The RP will consist of three rehabilitation session/week during eight weeks. The efficacy of a RP will be evaluated by functional scale Western Ontario \& McMaster Universities Osteoarthritis (WOMAC), Scale for the measurement of health related quality of life using EuroQol five dimensions questionnaire (EuroQOL), Visual Analog Scale (VAS), and physical function tests. Besides all clinical assessment, serum levels of classical pro-inflammatory cytokines, hyaluronan and HMGB1 will be evaluated. A correlation of physical improvement after RP and serum biomarkers will be performed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
65

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2018

Geographic Reach
1 country

2 active sites

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

October 21, 2016

Completed
26 days until next milestone

First Posted

Study publicly available on registry

November 16, 2016

Completed
1.6 years until next milestone

Study Start

First participant enrolled

July 2, 2018

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2019

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2019

Completed
Last Updated

September 22, 2023

Status Verified

July 1, 2018

Enrollment Period

1.2 years

First QC Date

October 21, 2016

Last Update Submit

September 21, 2023

Conditions

Keywords

OsteoarthritisbiomarkersHMGB1knee

Outcome Measures

Primary Outcomes (1)

  • Change from baseline to month 2 in Western Ontario and McMasters Universities Osteoarthritis (WOMAC) Index score

    Participants will answer the questionnaire WOMAC for the assessment of lower extremity pain, stiffness and physical function during daily activities. The WOMAC measures five items for pain (score range 0-20), two for stiffness (score range 0-8), and 17 for functional limitation (score range 0-68). For each item, the possible range of scores is therefore 0-100. Items are summed for each subscale, resulting in possible ranges as follows: pain=0-500, stiffness=0-200, physical function=0-1700. Most commonly, a total WOMAC score is created by summing the items for all three subscales. Higher scores on the WOMAC indicate worse pain, stiffness, and functional limitations. The collected data will be present through study completion, an average of 1 year.

    Baseline and 2 month

Secondary Outcomes (6)

  • Change from baseline to month 2 in TUG test

    Baseline and 2 month

  • Change from baseline to month 2 in VAS analysis.

    Baseline and 2 month

  • Change from baseline in proinflammatory cytokines and biomarkers of cartilage breakdown in blood

    Baseline, 1 month and 2 month after RP

  • Change from baseline to month 2 in Health-related quality of life (EuroQOL-5D, EQ-5D)

    Baseline and 2 month

  • Change from baseline to month 2 in Radiographic knee osteoarthritis progression (joint space and KL score)

    Baseline and 2 month

  • +1 more secondary outcomes

Study Arms (1)

Rehabilitation

OTHER

The rehabilitation protocol will consist of three exercise session/week for eight weeks

Other: Rehabilitation

Interventions

Protocol will consist of three exercise/week for eight weeks. Each session will begin with the evaluation of pain by the volunteer. Starting with a warm up exercise in a cycle ergometer (CEE), for 5 minutes at free cadence, then the intensity will be set at 90% of the intensity obtained during the incremental test and maintained for 10 min. Afterward, four sets of three different resistance exercises (RE) will be performed at 70% of the load correspondent to 1RM test with one minute interval between sets and exercises. During CEE Borg scale will be taken every two minutes and during RE the OMNI scale taken at the end of every set to monitor the intensity. At the end of the session, cool down global stretching exercises for inferior members will be performed and the VAS evaluated.

Rehabilitation

Eligibility Criteria

Age45 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women and men aged 45-65 years
  • Clinical knee osteoarthritis according to the American College of Rheumatology Clinical Criteria
  • Kellgren and Lawrence (KL) radiographic osteoarthritis grade 2 and 3 (mild to moderate radiographic osteoarthritis)

You may not qualify if:

  • Severe knee osteoarthritis according to the KL classification (grade 4)
  • Other known major musculoskeletal impairments in the lower extremities or the back or prostheses in any joint of the lower extremities
  • Known serious coronary heart diseases or cancer
  • Body mass index \>35
  • Scheduled for surgery in any joint
  • Persons who already perform sports related moderate physical activity more than two times a week
  • History of knee replacement surgery or high tibial osteotomy;
  • Any knee surgery or corticosteroid injections within the previous 6 months;
  • Miss more than two rehabilitation sessions during the program or more than two consecutive sessions.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Universidade Federal de Sao Paulo

São Paulo, São Paulo, 04022-001, Brazil

Location

Hospital Israelita Albert Einstein

São Paulo, São Paulo, 05652-000, Brazil

Location

Related Publications (14)

  • Weinstein SL, Jacobs JJ, Goldberg MJ. Osteoarthritis of the knee. N Engl J Med. 2006 Jun 8;354(23):2508-9; author reply 2508-9. doi: 10.1056/NEJMc060815. No abstract available.

    PMID: 16760456BACKGROUND
  • Kapoor M, Martel-Pelletier J, Lajeunesse D, Pelletier JP, Fahmi H. Role of proinflammatory cytokines in the pathophysiology of osteoarthritis. Nat Rev Rheumatol. 2011 Jan;7(1):33-42. doi: 10.1038/nrrheum.2010.196. Epub 2010 Nov 30.

    PMID: 21119608BACKGROUND
  • Cross M, Smith E, Hoy D, Nolte S, Ackerman I, Fransen M, Bridgett L, Williams S, Guillemin F, Hill CL, Laslett LL, Jones G, Cicuttini F, Osborne R, Vos T, Buchbinder R, Woolf A, March L. The global burden of hip and knee osteoarthritis: estimates from the global burden of disease 2010 study. Ann Rheum Dis. 2014 Jul;73(7):1323-30. doi: 10.1136/annrheumdis-2013-204763. Epub 2014 Feb 19.

    PMID: 24553908BACKGROUND
  • McAlindon TE, Bannuru RR, Sullivan MC, Arden NK, Berenbaum F, Bierma-Zeinstra SM, Hawker GA, Henrotin Y, Hunter DJ, Kawaguchi H, Kwoh K, Lohmander S, Rannou F, Roos EM, Underwood M. OARSI guidelines for the non-surgical management of knee osteoarthritis. Osteoarthritis Cartilage. 2014 Mar;22(3):363-88. doi: 10.1016/j.joca.2014.01.003. Epub 2014 Jan 24.

    PMID: 24462672BACKGROUND
  • Zhang W, Moskowitz RW, Nuki G, Abramson S, Altman RD, Arden N, Bierma-Zeinstra S, Brandt KD, Croft P, Doherty M, Dougados M, Hochberg M, Hunter DJ, Kwoh K, Lohmander LS, Tugwell P. OARSI recommendations for the management of hip and knee osteoarthritis, Part II: OARSI evidence-based, expert consensus guidelines. Osteoarthritis Cartilage. 2008 Feb;16(2):137-62. doi: 10.1016/j.joca.2007.12.013.

    PMID: 18279766BACKGROUND
  • Altman R, Asch E, Bloch D, Bole G, Borenstein D, Brandt K, Christy W, Cooke TD, Greenwald R, Hochberg M, et al. Development of criteria for the classification and reporting of osteoarthritis. Classification of osteoarthritis of the knee. Diagnostic and Therapeutic Criteria Committee of the American Rheumatism Association. Arthritis Rheum. 1986 Aug;29(8):1039-49. doi: 10.1002/art.1780290816.

    PMID: 3741515BACKGROUND
  • Hsueh MF, Onnerfjord P, Kraus VB. Biomarkers and proteomic analysis of osteoarthritis. Matrix Biol. 2014 Oct;39:56-66. doi: 10.1016/j.matbio.2014.08.012. Epub 2014 Aug 30.

    PMID: 25179675BACKGROUND
  • Kraus VB, Blanco FJ, Englund M, Henrotin Y, Lohmander LS, Losina E, Onnerfjord P, Persiani S. OARSI Clinical Trials Recommendations: Soluble biomarker assessments in clinical trials in osteoarthritis. Osteoarthritis Cartilage. 2015 May;23(5):686-97. doi: 10.1016/j.joca.2015.03.002.

    PMID: 25952342BACKGROUND
  • Terada C, Yoshida A, Nasu Y, Mori S, Tomono Y, Tanaka M, Takahashi HK, Nishibori M, Ozaki T, Nishida K. Gene expression and localization of high-mobility group box chromosomal protein-1 (HMGB-1)in human osteoarthritic cartilage. Acta Med Okayama. 2011 Dec;65(6):369-77. doi: 10.18926/AMO/47262.

    PMID: 22189477BACKGROUND
  • Hunt MA, Pollock CL, Kraus VB, Saxne T, Peters S, Huebner JL, Sayre EC, Cibere J. Relationships amongst osteoarthritis biomarkers, dynamic knee joint load, and exercise: results from a randomized controlled pilot study. BMC Musculoskelet Disord. 2013 Mar 27;14:115. doi: 10.1186/1471-2474-14-115.

    PMID: 23530976BACKGROUND
  • Andersson U, Harris HE. The role of HMGB1 in the pathogenesis of rheumatic disease. Biochim Biophys Acta. 2010 Jan-Feb;1799(1-2):141-8. doi: 10.1016/j.bbagrm.2009.11.003.

    PMID: 20123076BACKGROUND
  • Imamura M, Ezquerro F, Marcon Alfieri F, Vilas Boas L, Tozetto-Mendoza TR, Chen J, Ozcakar L, Arendt-Nielsen L, Rizzo Battistella L. Serum levels of proinflammatory cytokines in painful knee osteoarthritis and sensitization. Int J Inflam. 2015;2015:329792. doi: 10.1155/2015/329792. Epub 2015 Mar 2.

    PMID: 25821631BACKGROUND
  • Li ZC, Cheng GQ, Hu KZ, Li MQ, Zang WP, Dong YQ, Wang WL, Liu ZD. Correlation of synovial fluid HMGB-1 levels with radiographic severity of knee osteoarthritis. Clin Invest Med. 2011 Oct 1;34(5):E298. doi: 10.25011/cim.v34i5.15673.

    PMID: 21968272BACKGROUND
  • Campedelli RR, Jardim MRS, Antonioli E, de Oliveira FBD, Agarwal S, Ferretti M. Effect of simplified exercise program on quality of life, biomarkers, pain and muscle strength of individuals with knee osteoarthritis. Einstein (Sao Paulo). 2025 Dec 1;23:eAO1192. doi: 10.31744/einstein_journal/2025AO1192. eCollection 2025.

MeSH Terms

Conditions

Osteoarthritis

Interventions

Rehabilitation

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Intervention Hierarchy (Ancestors)

AftercareContinuity of Patient CarePatient CareTherapeuticsHealth ServicesHealth Care Facilities Workforce and Services

Study Officials

  • Mario Ferretti, PhD

    Hospital Israelita Albert Einstein

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 21, 2016

First Posted

November 16, 2016

Study Start

July 2, 2018

Primary Completion

August 30, 2019

Study Completion

December 30, 2019

Last Updated

September 22, 2023

Record last verified: 2018-07

Locations