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Poor sleep before breast cancer surgery may mean more pain and inflammation

NCT ID NCT07547774

Knowledge-focused Sponsor: Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is looking at 150 women having breast cancer surgery to see if their sleep quality in the month before surgery can predict how much pain and inflammation they have afterward. Participants fill out a sleep questionnaire before surgery, and their pain and painkiller use are tracked for 24 hours after. The goal is to understand if poor sleepers need more pain relief, which could help personalize care.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If it works, this could help doctors identify patients who may need extra pain management after breast cancer surgery based on their sleep quality.
What could go wrong
This is an observational study, not a treatment trial. It only looks for links between sleep and recovery, so it won't directly improve outcomes. Results may not apply to all patients.

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.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2026

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

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.

Who is studied

The study population will include female patients aged 18-70 years undergoing elective breast cancer surgery at a tertiary oncology center. Eligible procedures include breast-conserving surgery, lumpectomy, and mastectomy with or without axillary dissection. Preoperative sleep quality will be assessed using the Pittsburgh Sleep Quality Index (PSQI). All patients will receive standard perioperative care without any intervention. This observational cohort represents real-world clinical practice and allows evaluation of the association between preoperative sleep quality and postoperative outcomes.

Ages

18 to 70 years

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Female patients aged 18 to 70 years * Scheduled for elective breast cancer surgery * American Society of Anesthesiologists (ASA) physical status I to III * Able to understand and complete the Pittsburgh Sleep Quality Index (PSQI) * Willing to participate in the study * Provided written informed consent Exclusion Criteria: * Active infection * History of chronic inflammatory disease or autoimmune disease * Use of steroids or immunosuppressive drugs within the past 6 months * Known diagnosis of obstructive sleep apnea syndrome * Severe cognitive impairment preventing completion of the questionnaire * Planned emergency surgery * Refusal to participate or failure to provide informed consent

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm Inflammation inflammatory disease Pain, Postoperative

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Breast cancer Inflammation Postoperative pain

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Dr. Abdurrahman Yurtaslan Ankara Oncology Education and Research Hospital Clinic of Anesthesiology and Rea

    RECRUITING

    Ankara, Yenimahalle, 06200, Turkey (Türkiye)

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