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Should you pause your blood pressure pills before surgery? new study investigates

NCT ID NCT06862115

Knowledge-focused Sponsor: Kasr El Aini Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 20, 2026 · Updated 4 times

Summary

This study looks at whether stopping certain blood pressure medications (ACE inhibitors or ARBs) before colorectal cancer surgery can reduce the risk of heart injury. Researchers will monitor 156 adults for signs of heart damage after surgery. The goal is to find the safest way to manage these medications around the time of major abdominal surgery.

What this could mean

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

Active substance
renin angiotensin system inhibitors (ACE inhibitors or ARBs)
What this could lead to
If successful, this could show that stopping these blood pressure drugs before surgery is safe and may reduce heart injury risk.
What could go wrong
This is a small, single-center trial. Results may not apply to all patients, and stopping blood pressure medication could cause other risks like high blood pressure during surgery.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

182 people

The number who actually took part.

Started

Mar 2025

Finished

Aug 2026

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 70 years

Sex

Anyone

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: * Age \> 18 years * Both sexes * ASA 2-3 * Chronic hypertensive patients (\> 3 months before surgery) controlled on ACEIs or ARBs or combination therapy containing one of the RAS inhibitors. * Scheduled for major abdominal cancer surgery (surgery with an expected duration of \> 2 h from the surgical incision and a postoperative hospital stay of least three days). Exclusion Criteria: * Patient refusal. * Recent myocardial infarction (within 3 months). * Any condition, which in the opinion of the treating clinician, would result in the patient being harmed by the cessation of the ACE-I and/or ARB therapy. * Emergency surgery

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Conditions

The condition(s) this trial relates to.

colorectal cancer hypertensive disorder injury Postoperative Complications

As listed by the trial registrant

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

Angiotensin-converting-enzyme inhibitor Myocardium; injury Perioperative/postoperative complications

Contacts and locations

Locations

  • Cairo university hospitals

    Cairo, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.