Sign in
Taking people in United StatesNo phase

Sleep treatments before knee replacement for people with knee osteoarthritis

Compares ways to improve sleep before knee replacement surgery in people with knee osteoarthritis.

Key facts

Who runs it
Johns Hopkins University
Where
Baltimore and Chestnut Hill, United StatesSee the 2 sites
Trial code
Registry title
Sleep TO Prevent Post-surgical Pain
Status
Recruiting
People taking part
252 people, planned
Started
13 Jun 2025
Expected to end
31 Jul 2029
Type of study
Interventional, 3 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Cognitive-Behavioral Therapy for Insomnia
  • Bright Light therapy via the Re-Timer®
  • Negative Ion exposure via IonMi Device
  • Sleep / Knee Osteoarthritis Education
Record updated
7 August 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for people aged 60 or older with knee osteoarthritis who have trouble falling or staying asleep. They must be scheduled for a total replacement of one knee.

Age
60 years and older
Sex
All sexes
Disease stage
Knee osteoarthritis, with a planned total replacement of one knee because of osteoarthritis. People must also have trouble falling or staying asleep.
Earlier treatment
People cannot join if they now take sleep medicines or have finished Cognitive Behavioral Therapy for Insomnia. They also cannot join if they used Bright Light or Negative Ion exposure in the past year. People must stop over-the-counter sleep aids (for example, melatonin) for at least 2 weeks before joining.

Main reasons for not taking part

  • Inflammatory rheumatic disease, seizure disorder, or taking disease-modifying antirheumatic drugs
  • Serious mental health disorder, Bipolar I disorder, or substance or alcohol use disorder
  • Serious sleep or body-clock disorder, or untreated sleep apnea
  • Pregnant or breastfeeding
  • Retina disease, past eye surgery (Lasik or cataract okay if more than 3 months ago), or taking medicines that make you sensitive to light

The registry criteria, word for word

Show all 16 criteriaShow less

Who can take part

  • People with knee osteoarthritis,
  • 60 years old and older,
  • scheduled to have unilateral (one knee) total knee replacement surgery for osteoarthritis and
  • have trouble falling or staying asleep

Who cannot take part

  • currently using medications to help sleep
  • have completed Cognitive Behavioral Therapy for Insomnia
  • taking photosensitizing medications
  • are unwilling to discontinue over the counter sleep aids (for example, melatonin) for at least 2 weeks before enrolling
  • have an inflammatory rheumatologic disorder, seizure disorder
  • serious mental health disorder, Bipolar I disorder, substance or alcohol use disorder
  • serious sleep or circadian rhythm disorder, untreated sleep apnea
  • history of eye surgery (Lasik or cataract okay if more than 3 months ago)
  • are taking disease-modifying antirheumatic drugs
  • used either Bright Light or Negative Ion exposures in the past year
  • are pregnant or lactating
  • have retinal pathology

Where in United States

  • Johns Hopkins School of MedicineBaltimore, United StatesContact: Anna Kim-DahlTaking people
  • Mass General BrighamChestnut Hill, United StatesContact: Anna Kim-DahlNo longer taking part

About the trial

What the trial wants to find out

This research study is being done to compare different methods of addressing sleep problems before total knee replacement surgery. These methods include Cognitive Behavioral Therapy and light exposure.

The 3 groups in the trial

  • Cognitive Behavioral Therapy + Morning Bright Light exposureTreatment being tested

    Cognitive-Behavioral Therapy for Insomnia. This program will focus on changing the participant's sleep patterns, activities, and habits. Morning Bright Light involves wearing glasses (Re-Timer Device) that give off a special type of bright light for one full hour in the morning. The participant will be asked to wear these glasses every morning for about four weeks before surgery, four weeks after surgery and again for 1-week , 3-months after surgery. The participant will fill out a log to note light on/off times, any interruptions to light treatment, and primary activity while receiving the light exposure. The participant will also receive daily reminders to charge the device and turn it on during the scheduled time.

    Treatment: Cognitive-Behavioral Therapy for Insomnia and Bright Light therapy via the Re-Timer®

  • Cognitive Behavioral Therapy for Insomnia + Negative Ion exposureExisting treatment, for comparison

    Cognitive-Behavioral Therapy for Insomnia. This program will focus on changing the participant's sleep patterns, activities, and habits. Negative Ion exposure. This procedure involves wearing a light weight negative ionizer (IonMi Device) around the neck for one hour in the morning. An ionizer gives off special negatively charged ions into the air. the participant will be asked to wear the device every morning for about four weeks before surgery, four weeks after surgery and again for 1-week, 3-months after surgery The participant will also receive daily reminders to charge the device and turn it on during the scheduled time.

    Treatment: Cognitive-Behavioral Therapy for Insomnia and Negative Ion exposure via IonMi Device

  • Sleep / Knee Osteoarthritis Education + Negative Ion exposureExisting treatment, for comparison

    Sleep / Knee Osteoarthritis Education. This program will focus on increasing the participant's knowledge about sleep, sleep disorders and knee osteoarthritis. Negative Ion exposure. This procedure involves wearing a light weight negative ionizer (IonMi Device) around the neck for one hour in the morning. An ionizer gives off special negatively charged ions into the air. The participant will be asked to wear the device every morning for about four weeks before surgery, four weeks after surgery and again for 1-week, 3-months after surgery The participant will also receive daily reminders to charge the device and turn it on during the scheduled time.

    Treatment: Negative Ion exposure via IonMi Device and Sleep / Knee Osteoarthritis Education

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Sleep TO Prevent Post-surgical Pain
Plain-language title
Sleep treatments before knee replacement for people with knee osteoarthritisGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 14 November 2026.
Record updated
7 August 2026