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CompletedNo phase

Calypso Knee System Clinical Study

Key facts

Who runs it
Moximed
Where
Charlottesville, Columbia, Columbus, New York, and Portland, United StatesSee the 5 sites
Trial code
Status
Completed
People taking part
81 people enrolled
Started
19 Sept 2018
Ended
14 Mar 2025
Type of study
Interventional
Treatments tested
  • Calypso Knee System (Implantable Shock Absorber)
Record updated
29 July 2026

Who can take part

Age
25 years to 65 years
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 6 criteriaShow less

Who can take part

  • Participants age - 25 to 65 years
  • Body Mass Index (BMI) of < 35, Weight < 300 lbs
  • Knee osteoarthritis pain on the inner side of knee that has continued after at least 6 months of non-operative treatment

Who cannot take part

  • Other bone or joint conditions such as Rheumatoid arthritis, Paget's disease, Charcot's disease or general conditions such as allergy or hypersensitivity to certain metals, active infection, certain neurological conditions, use of medication such as steroids or chemotherapy that could impact study participation or results
  • Symptoms of osteoarthritis in the other knee or in lateral (outer) or patellofemoral compartments of the target knee
  • Knee ligament or meniscal instability

Where in United States

  • University of VirginiaCharlottesville, United StatesNo longer taking part
  • Missouri Orthopaedic InstituteColumbia, United StatesNo longer taking part
  • Jameson Crane Sports Medicine InstituteColumbus, United StatesNo longer taking part
  • Hospital for Special SurgeryNew York, United StatesNo longer taking part
  • Oregon Health and Science UniversityPortland, United StatesNo longer taking part

About the trial

What the trial wants to find out

A clinical study to evaluate the safety and effectiveness of the Calypso Knee System when used in subjects with symptomatic osteoarthritis of the medial compartment of the knee.

The group in the trial

  • CalypsoTreatment being tested

    Calypso Knee System

    Treatment: Calypso Knee System (Implantable Shock Absorber)

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Evaluation of the Calypso Knee System for Symptom Relief in Subjects With Medial Knee Osteoarthritis
Record updated
29 July 2026