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Can a tailored blood thinner dose save lives after Weight-Loss surgery?

NCT ID NCT05569681

Disease control Sponsor: Hawler Medical University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 18, 2026 · Updated 2 times

Summary

This study compares two different doses of the blood thinner bemiparin to see which works better at preventing dangerous blood clots in people with severe obesity after surgery. About 2,400 participants will be enrolled. The goal is to find the safest and most effective dose for this high-risk group.

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

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

About 2,400 people

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

Started

Jan 2023

Expected to finish

Oct 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.

Ages

18 to 90 years

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: 1. Participants required surgical intervention in: general surgery, gynecology, bariatric surgery 2. Moderate, high, and very high risk for venous thromboembolism according to Caprin RAM 3. Participant is willing and able to give informed consent for participation in the study. 4. BMI ≥40kg/m2 Exclusion Criteria: 1. Having any contraindication to LMWH, such as active bleeding, history of heparin-induced thrombocytopenia , baseline platelet count \<75 × 108/μl, severe renal disease (glomerular filtration rate \<30 ml/minute), severe liver disease, or uncontrolled hypertension (\>200/120 mmHg) 2. Known hypersensitivity to unfractionated or LMWHs 3. On oral or parenteral anticoagulants within 5 days before surgery 4. Severe arterial hypertension 5. Unable to comply with the study treatment and/or follow-up 6. Receiving prohibited medications 7. Pregnancy or lactation mother

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Conditions

The condition(s) this trial relates to.

morbid obesity venous thromboembolism prevention target

As listed by the trial registrant

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

Morbid obesity

How to take part

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

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

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

  3. 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 ↗

  4. 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

  • Hawler Medical university

    RECRUITING

    Erbil, Kurdistan Region, 44001, Iraq

    Contact Email: •••••@•••••

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