Better sleep before surgery may ease pain afterward, new trial hopes to prove
NCT ID NCT06145516
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether helping people with insomnia sleep better before knee or hip replacement surgery can reduce pain and improve recovery afterward. One hundred adults scheduled for surgery will receive either cognitive behavioral therapy for insomnia or sleep education for four weeks before their operation. Researchers will track pain, sleep, and recovery for a year after surgery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Cognitive behavioral therapy for insomnia (CBT-I) and sleep education therapy
- What this could lead to
- If it works, this could point toward a simple, drug-free way to improve pain control and recovery after joint replacement surgery.
- What could go wrong
- This is a small, early-stage trial with only 100 participants. The sleep interventions may not significantly improve pain or recovery, and results may not apply to everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Dec 2030
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 100 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * age ≥18 years * insomnia severity index score \>10 * fulfill DSM-V criteria for persistent insomnia disorder * average pain numerical rating scale (NRS) score ≥4 (scale 0 - 10) and/or movement-related pain NRS score ≥4 after 5 minutes walking * scheduled to undergo primary (first-time, i.e., not revision surgery) TKA or THA due to osteoarthritis Exclusion Criteria: * uncontrolled medical disorders * nightshift work * ongoing major depressive disorder, bipolar disorder, psychotic disorder, substance dependence * current history or high likelihood of primary sleep disorders (other than insomnia), including obstructive sleep apnea syndrome, narcolepsy, nocturnal myoclonus * severely impaired vision (precluding ability to take part of study interventions)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Department of Surgical Sciences, Uppsala University
RECRUITINGUppsala, Uppland, 75185, Sweden
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can magnetic brain zaps ease the pain of a sleepless body?
- Can poor sleep make you hurt more? study probes Insomnia's link to pain