NCT03344770

Brief Summary

This is a double-blind placebo controlled trial whose objective is to understand how much the radial extracorporeal shockwave therapy can improve function of patients with knee osteoarthritis. For this trial, patients with knee osteoarthritis, after signing the informed consent form and having their demographic and baseline information collected, will be randomly allocated into one of both treatment arms: radial extracorporeal shockwave therapy (rESWT) or sham radial extracorporeal shockwave therapy. Then, they will undertake three sessions of rESWT, for three weeks, i.e. one session per week. Patients will be assessed prior to the therapy, one week after the end of the therapy and three months after the end of the therapy, and the primary outcome of this study is the functional change measured by the Knee injury and Osteoarthritis Outcome Score (KOOS) validated in Portuguese, three months after the end of the therapy. Secondary outcomes, will be the change of pain, the change of pressure pain tolerance threshold, change in diffuse noxious inhibitory control (DNIC), and thermographic changes.

Trial Health

33
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Trial recruitment is currently suspended
Enrollment
44

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Oct 2017

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
suspended

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 Start

First participant enrolled

October 20, 2017

Completed
24 days until next milestone

First Submitted

Initial submission to the registry

November 13, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 17, 2017

Completed
7.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2025

Completed
Last Updated

May 16, 2024

Status Verified

May 1, 2024

Enrollment Period

8 years

First QC Date

November 13, 2017

Last Update Submit

May 15, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Functional Change

    Functional change from baseline, measured by KOOS.

    At baseline and three months after the end of the treatment.

Secondary Outcomes (5)

  • Short Term Functional Changes

    At baseline and one week after the end of the treatment.

  • Knee pain reduction

    At baseline, one week and three months after the end of the treatment

  • Pain pressure threshold tolerance changes

    At baseline, one week and three months after the end of the treatment

  • Diffuse noxious inhibitory control alterations

    At baseline, one week and three months after the end of the treatment

  • Thermography evaluation

    At baseline, one week and three months after the end of the treatment

Study Arms (2)

Active rESWT

EXPERIMENTAL

Application of 5,000 pulses of rESWT by a pneumatic generator, with 0.16mJ/mm2 (millijoule per squared millimeter) of energy at a frequency of 20Hz on the most painful spot of the knee. The applications will be given once a week for three weeks.

Device: Active rESWT

Sham rESWT

SHAM COMPARATOR

Application of 5,000 pulses of rESWT by a pneumatic generator, at a frequency of 20Hz on the most painful spot of the knee with 0 mJ/mm2 energy. The applications will also be given once a week for three weeks.

Device: Sham rESWT

Interventions

5,000 pulses of rESWT, with 0.16mJ/mm2 of energy at a frequency of 20Hz once a week for three weeks.

Active rESWT

5,000 pulses of rESWT, with 0.0 mJ/mm2 of energy at a frequency of 20Hz once a week for three weeks.

Sham rESWT

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Clinical diagnosis of knee osteoarthritis;
  • Onset knee pain with moderate or severe intensity: Visual Analogue Scale (VAS) \> 4;

You may not qualify if:

  • Presence of psychiatric disease;
  • Presence of fibromyalgia;
  • Presence of systemic inflammatory rheumatic diseases;
  • History of neoplasia;
  • Presence of clinical diseases in other joints;
  • Ongoing use of anticoagulant drugs.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Instituto de Medicina Fisica e Reabilitacao HCFMUSP

São Paulo, 05716-150, Brazil

Location

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Marta Imamura, MD

    Instituto de Medicina Física e Reabilitação HCFMUSP

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 13, 2017

First Posted

November 17, 2017

Study Start

October 20, 2017

Primary Completion

October 1, 2025

Study Completion

October 1, 2025

Last Updated

May 16, 2024

Record last verified: 2024-05

Locations