NCT07125430

Brief Summary

Introduction: Knee osteoarthritis represents a significant health problem due to its impact on the functionality and quality of life of patients. Its treatment can be pharmacological, non-pharmacological, or surgical. Recently, the chondroprotective potential of shockwave therapy has been evidenced. Objective: To determine whether shockwave treatment combined with knee strengthening exercises is superior to knee strengthening exercises alone in reducing pain and improving function in patients with knee osteoarthritis. Method: A randomized controlled trial with allocation concealment is proposed. Patients with knee pain secondary to knee osteoarthritis will participate during their hospital admission. Two groups will be formed: both will follow an exercise program for three weeks, and the intervention group will add a weekly shockwave session during that same period. The main variable will be pain intensity; other variables include stiffness, functional capacity, degree of satisfaction, and data related to the application of therapy (frequency, intensity, number of pulses, side effects). Clinical data will also be collected such as reason for admission, age, sex, comorbidities, degree of dependency, walking ability, analgesia, use of assistive devices, and progress during treatment. Applicability: The results could lead to a change in clinical practice, serving as a basis for modifying treatment protocols for knee osteoarthritis in medium-stay hospitals. Furthermore, they would provide additional scientific evidence on the efficacy of shock wave therapy for this condition.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable knee-osteoarthritis

Timeline
7mo left

Started Nov 2025

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

Study Progress48%
Nov 2025Dec 2026

First Submitted

Initial submission to the registry

August 8, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

August 15, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

November 1, 2025

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

February 3, 2026

Status Verified

August 1, 2025

Enrollment Period

10 months

First QC Date

August 8, 2025

Last Update Submit

January 31, 2026

Conditions

Keywords

shock waves, knee osteoarthritis, rehabilitation

Outcome Measures

Primary Outcomes (1)

  • Compare the magnitude of pain reduction between patients with knee osteoarthritis treated with shockwave therapy plus strengthening exercises and those treated only with strengthening exercises

    To assess pain, the validated Visual Analog Scale (VAS) will be used. This scale represents pain intensity on a 10 cm horizontal line, where 0 corresponds to "no pain" and 10 to "the worst pain imaginable." The scores will be interpreted as follows: a score below 4 indicates mild or mild-to-moderate pain; a score between 4 and 6 suggests moderate to severe pain; and a score above 6 reflects the presence of intense or very severe pain.

    From inclusion in the study until three months after the last treatment session

Secondary Outcomes (3)

  • To examine difference in knee functionality improvement between both treatment groups

    From inclusion in the study until three months after the last treatment session.

  • To evaluate the difference in degree of disability

    From inclusion in the study until three months after the last treatment session.

  • Analyze the level of patient satisfaction with the outcomes obtained from each therapeutic modality.

    From inclusion in the study until three months after the last treatment session

Study Arms (2)

control group

ACTIVE COMPARATOR

In the control group, a strengthening exercise program will be carried out for three weeks.

Other: strengthening exercise

intervention group

ACTIVE COMPARATOR

In the intervention group, in addition to the strengthening exercise program, 3 sessions of shock wave therapy (PiezoWave 2 Control Unit, classification 93/42/EEC class IIb) will be conducted, at a frequency of one session per week. The parameters for shock wave therapy will be: frequency 4-6 Hz, intensity 0.11-0.35 mJ/mm2, and number of pulses 2000 (applied to the femoral condyle and tibial plateau).

Other: strengthening exerciseOther: shock wave

Interventions

3 sessions of shock wave therapy, frequency of one session per week

intervention group

a strengthening exercise program will be carried out for three weeks

control groupintervention group

Eligibility Criteria

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

You may qualify if:

  • Knee pain assessed according to the VAS scale, with a score equal to or greater than 4 in the last 3 months.
  • Osteoarthritis grade 2 or 3 in the Kellgren-Lawrence classification.
  • Informed consent signature

You may not qualify if:

  • Stroke in the last 3 months, knee surgery in the last 3 months, intra-articular infiltration in the last 3 months, secondary knee osteoarthritis, chronic inflammatory disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Guadarrama Hospital

Guadarrama, Madrid, 28440, Spain

RECRUITING

Hospital Guadarrama

Madrid, Madrid, 28440, Spain

RECRUITING

Related Publications (13)

  • Wang CJ, Cheng JH, Chou WY, Hsu SL, Chen JH, Huang CY. Changes of articular cartilage and subchondral bone after extracorporeal shockwave therapy in osteoarthritis of the knee. Int J Med Sci. 2017 Feb 23;14(3):213-223. doi: 10.7150/ijms.17469. eCollection 2017.

    PMID: 28367081BACKGROUND
  • Liao CD, Huang YY, Chen HC, Liou TH, Lin CL, Huang SW. Relative Effect of Extracorporeal Shockwave Therapy Alone or in Combination with Noninjective Treatments on Pain and Physical Function in Knee Osteoarthritis: A Network Meta-Analysis of Randomized Controlled Trials. Biomedicines. 2022 Jan 28;10(2):306. doi: 10.3390/biomedicines10020306.

    PMID: 35203516BACKGROUND
  • Avendano-Coy J, Comino-Suarez N, Grande-Munoz J, Avendano-Lopez C, Gomez-Soriano J. Extracorporeal shockwave therapy improves pain and function in subjects with knee osteoarthritis: A systematic review and meta-analysis of randomized clinical trials. Int J Surg. 2020 Oct;82:64-75. doi: 10.1016/j.ijsu.2020.07.055. Epub 2020 Aug 13.

    PMID: 32798759BACKGROUND
  • Wang CJ, Wang FS, Yang KD, Weng LH, Hsu CC, Huang CS, Yang LC. Shock wave therapy induces neovascularization at the tendon-bone junction. A study in rabbits. J Orthop Res. 2003 Nov;21(6):984-9. doi: 10.1016/S0736-0266(03)00104-9.

    PMID: 14554209BACKGROUND
  • Chen YJ, Wang CJ, Yang KD, Kuo YR, Huang HC, Huang YT, Sun YC, Wang FS. Extracorporeal shock waves promote healing of collagenase-induced Achilles tendinitis and increase TGF-beta1 and IGF-I expression. J Orthop Res. 2004 Jul;22(4):854-61. doi: 10.1016/j.orthres.2003.10.013.

    PMID: 15183445BACKGROUND
  • Berta L, Fazzari A, Ficco AM, Enrica PM, Catalano MG, Frairia R. Extracorporeal shock waves enhance normal fibroblast proliferation in vitro and activate mRNA expression for TGF-beta1 and for collagen types I and III. Acta Orthop. 2009 Oct;80(5):612-7. doi: 10.3109/17453670903316793.

    PMID: 19916698BACKGROUND
  • Mittermayr R, Hartinger J, Antonic V, Meinl A, Pfeifer S, Stojadinovic A, Schaden W, Redl H. Extracorporeal shock wave therapy (ESWT) minimizes ischemic tissue necrosis irrespective of application time and promotes tissue revascularization by stimulating angiogenesis. Ann Surg. 2011 May;253(5):1024-32. doi: 10.1097/SLA.0b013e3182121d6e.

    PMID: 21372687BACKGROUND
  • Uysal A, Yildizgoren MT, Guler H, Turhanoglu AD. Effects of radial extracorporeal shock wave therapy on clinical variables and isokinetic performance in patients with knee osteoarthritis: a prospective, randomized, single-blind and controlled trial. Int Orthop. 2020 Jul;44(7):1311-1319. doi: 10.1007/s00264-020-04541-w. Epub 2020 Mar 26.

    PMID: 32215674BACKGROUND
  • ESWT Guidelines English version Updated and agreed from the ISMST Managing Board, in close cooperation with the Germanspeaking Society for Extracorporeal Shockwave Therapy (DIGEST) Daegu, South Korea July 20th, 2023 .ISMST-Guidelines-for-ESWT-_-engl-20240103.pdf

    BACKGROUND
  • Moya D, Ramon S, Schaden W, Wang CJ, Guiloff L, Cheng JH. The Role of Extracorporeal Shockwave Treatment in Musculoskeletal Disorders. J Bone Joint Surg Am. 2018 Feb 7;100(3):251-263. doi: 10.2106/JBJS.17.00661. No abstract available.

    PMID: 29406349BACKGROUND
  • An S, Li J, Xie W, Yin N, Li Y, Hu Y. Extracorporeal shockwave treatment in knee osteoarthritis: therapeutic effects and possible mechanism. Biosci Rep. 2020 Nov 27;40(11):BSR20200926. doi: 10.1042/BSR20200926.

    PMID: 33074309BACKGROUND
  • Giaretta S, Magni A, Migliore A, Natoli S, Puntillo F, Ronconi G, Santoiemma L, Sconza C, Viapiana O, Zanoli G. A Review of Current Approaches to Pain Management in Knee Osteoarthritis with a Focus on Italian Clinical Landscape. J Clin Med. 2024 Aug 31;13(17):5176. doi: 10.3390/jcm13175176.

    PMID: 39274389BACKGROUND
  • Jhan SW, Wang CJ, Wu KT, Siu KK, Ko JY, Huang WC, Chou WY, Cheng JH. Comparison of Extracorporeal Shockwave Therapy with Non-Steroid Anti-Inflammatory Drugs and Intra-Articular Hyaluronic Acid Injection for Early Osteoarthritis of the Knees. Biomedicines. 2022 Jan 18;10(2):202. doi: 10.3390/biomedicines10020202.

    PMID: 35203417BACKGROUND

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Yunia H Labrada Rodríguez, MD, MSc

    Guadarrama Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Yunia H Labrada Rodríguez, MD, MSc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized controlled trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 8, 2025

First Posted

August 15, 2025

Study Start

November 1, 2025

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

February 3, 2026

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations