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Rotator Cuff TearsNCT04774965

The Effects of SlumberCurve™ Following Rotator Cuff Surgery: a Randomized Control Trial

A study testing Slumber Curve sleep aid in people with Rotator Cuff Tears and Surgery, run by University of Alabama at Birmingham.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to investigate the effects of a novel sleep aid known as SlumberCurve™, which serves as an adjustable form of a wedge pillow, on sleep quality and pain management following rotator cuff repair. Read more about this study

Who is it for?
Ages 18 to 99 years
Conditions the study is for
Rotator Cuff Tears, Surgery, Pain, Postoperative
What is being tested?
Slumber Curve sleep aid
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
30 Jun 2023to 24 Jun 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Any male or nonpregnant female aged 18 years or older with a full-thickness rotator cuff tear undergoing rotator cuff repair surgery

Who cannot join

  • Patients who receive workers' compensation benefits
  • Patients with irreparable tears
  • Patients undergoing revision surgery
  • Patients with concomitant severe glenohumeral arthritis or concurrent adhesive capsulitis
  • Sleep apnea disorder or other diagnosed sleep disorder
  • Neuropsychiatric disease
Show all 10Show fewer
  • Use of sleep medication
  • Prior shoulder surgery
  • Rotator cuff arthropathy with pseudo paralysis
  • Acute fractures involving the proximal humerus or shoulder girdle

About this study

The purpose of this study is to investigate the effects of a novel sleep aid known as SlumberCurve™, which serves as an adjustable form of a wedge pillow, on sleep quality and pain management following rotator cuff repair. The researchers hypothesize that SlumberCurve™ will significantly improve sleep quality and reduce night-time pain.

Read the detailed description

Poor sleep quality is prevalent among patients undergoing rotator cuff repair surgery, and negatively affects the potential for proper healing. Without adequate sleep, the production of anabolic steroids and inflammatory cytokines are diminished. These anabolic steroids and inflammatory cytokines play a key role in postoperative healing, resulting in adequate pain regulation and increased patient satisfaction. Therefore adequate sleep quality is important not only for quality of life, but for postoperative healing. A recent systematic review revealed that some studies reported varying degrees in both the time and magnitude of change in return to adequate sleep quality following rotator cuff repair. This study hopes to address this gap in the literature by investigating a novel sleep aid, SlumberCurve, and its effect on sleep quality and night-time pain relief. SlumberCurve is a Class I Medical Device and is currently advocated to relieve tension and diminish pain in patients undergoing rotator cuff repair surgery. The device provides adjustable elevation of the torso as well as concave positioning, placing the shoulder in a more forward position. This novel sleep aid has the potential to increase sleep quality, and therefore enhance both patient satisfaction and postoperative recovery from rotator cuff repair surgery.

Being tested
Slumber Curve sleep aid
Medical subject headings
Rotator Cuff Injuries, Pain, Postoperative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Slumber Curve sleep aidDevice

    Patients who undergo rotator cuff repair and have been consented and randomized to the experimental group will be given a Slumber Curve sleep aid to be used during sleep. Each device will be numbered and recorded in the patient's REDCap entry for future reference if needed. Following administration of the Slumber Curve, patients will be given instructions on how to use the sleep aid while sleeping, and will be asked to use Slumber Curve nightly.

Study groups in NCT04774965
Study groupRoleWhat they receive
Slumber Curve GroupExperimentalPatients receiving Slumber Curve sleep aid for management of pain and sleep quality following rotator cuff repair.
Receives: Device: Slumber Curve sleep aid
Normal Sleep Routine GroupNo interventionPatients not receiving sleep aid.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fitbit Sleep Data - Time spent awake, restless, and asleep

    Estimates of time spent awake, restless, and asleep will be assessed. All three measures will be recorded in minutes. Restless sleep indicates movement, and excessive movement will indicates time spent awake.

    Measured: 90 days

  2. Fitbit Sleep Data - Sleep Stages

    Sleep stages are estimated by utilizing movement and heart rate variability. Sleep stages are categorized into light sleep, deep sleep, and REM. Collective time spent in each stage will be recorded in minutes.

    Measured: 90 days

  3. Pittsburgh Sleep Quality Index (PSQI)

    The PSQI tracks sleep disturbances over time and includes seven component scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, sleeping medications, and daytime dysfunction. Total of 21 points. Scores of less than 5 indicate adequate sleep. Scores of greater than 5 indicate poor sleep.

    Measured: 90 days

  4. Visual Analog Scale (VAS)

    Pain score, 0-10, 10 is best outcome

    Measured: 90 days

  5. Single Assessment Numeric Evaluation (SANE)

    Function score, 0-100%, 100% is best outcome

    Measured: 90 days

  6. Postoperative Oral Morphine Equivalents

    Oral morphine equivalents of all opioid-containing medications received

    Measured: 90 days

  7. Simple Shoulder Test (SST)

    Function score. Higher score indicates greater function.

    Measured: 90 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Mar 2021
  2. Study start30 Jun 2023 (estimated)
  3. Primary completion24 Jun 2024
  4. Study completion24 Jun 2024

Why it stopped: Decided not to pursue study

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04774965
Sponsor's protocol ID
IRB-300006834
Status last verified
Mar 2025
First submitted
24 Feb 2021
Last updated
19 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided

Publications

  • Kunze KN, Movasagghi K, Rossi DM, Polce EM, Cohn MR, Karhade AV, Chahla J. Systematic Review of Sleep Quality Before and After Arthroscopic Rotator Cuff Repair: Are Improvements Experienced and Maintained? Orthop J Sports Med. 2020 Dec 29;8(12):2325967120969224. doi: 10.1177/2325967120969224. eCollection 2020 Dec.

    PubMed 33447619

Questions about this trial

What is this clinical trial studying?

A study testing Slumber Curve sleep aid in people with Rotator Cuff Tears and Surgery, run by University of Alabama at Birmingham.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 19 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fitbit Sleep Data - Time spent awake, restless, and asleep (time frame: 90 days). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04774965, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Mar 2025.

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