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Anemia type may predict surgery danger

NCT ID NCT06499974

Knowledge-focused Sponsor: Peking Union Medical College Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is observing 1000 adults having moderate- to high-risk surgery to see if the type and severity of anemia they have before surgery affects their risk of complications like heart injury, kidney injury, or stroke. Researchers will compare patients with iron-deficiency anemia, anemia of chronic disease, or combined anemia, and also compare them to patients without anemia. The goal is to better understand which patients are at highest risk so doctors can take steps to prevent problems.

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 successful, this could help doctors better predict and prevent serious complications in anemic patients undergoing surgery.
What could go wrong
This is an observational study, not a treatment trial. It can show links but not prove cause and effect. Results may not apply to all surgery types.

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 1,000 people

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

Started

Aug 2024

Expected to finish

Dec 2027

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

Patients who are 18 years or older scheduled for moderate- or high-risk surgery will be included in our study.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * age 18 years or older * scheduled for elective moderate- to high-risk surgery other than intracranial and cardiac surgery * predicted surgery time longer than 1 hour and hospital stay longer than 24 hours * understand and agree to participate Exclusion Criteria: * pregnant * live at areas higher than 2,500 meters above sea level * with hematological diseases other than anemia * with severe comorbidities that might interfere outcome assessment, like uremia, dementia, and so on * can't cooperate or communicate, or reject to sign informed consent form

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Conditions

The condition(s) this trial relates to.

anemia anemia due to chronic disorder iron deficiency anemia

As listed by the trial registrant

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

Anemia

How to take part

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

  1. The places running it

    11 sites. 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

  • Anesthesiology Department, Beijing NO.6 Hospital

    RECRUITING

    Beijing, Beijing Municipality, China

  • BeiJing Hepingli Hospital

    RECRUITING

    Beijing, Beijing Municipality, China

  • Beijing Longfu Hospital (Beijing Geriatric Hospital of Integrated Traditional Chinese and Western Medicine)

    RECRUITING

    Beijing, Beijing Municipality, 100010, China

  • Beijing Puren Hospital

    RECRUITING

    Beijing, Beijing Municipality, China

  • Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University

    RECRUITING

    Zunyi, Guizhou, 563003, China

  • Department of Anesthesiology, Chifeng Municipal Hospital

    RECRUITING

    Chifeng, Inner Mongolia, China

  • Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College

    RECRUITING

    Wuhu, Anhui, China

  • Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University

    RECRUITING

    Hohhot, Inner Mongolia, China

  • Inner Mongolia People's Hospital

    RECRUITING

    Hohhot, Inner Mongolia, China

  • Peking Union Medical College Hospital

    RECRUITING

    Beijing, Beijing Municipality, China

  • Science and Education Department, Zhangzhou Municipal Hospital of Fujian Province

    RECRUITING

    Zhangzhou, Fujian, China

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