Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 to 75

Understanding why some people see bigger LDL drops after starting ezetimibe

Official title: Low-density Lipoprotein Cholesterol Reduction Following Ezetimibe Initiation: Patterns of Treatment Response

Run by Universidade do Porto · NCT07839741 · Data updated 2026-11-12

This study tests what factors predict how much a person’s LDL cholesterol drops after starting ezetimibe, to help tailor cholesterol treatment.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment100 (estimated)
SponsorUniversidade do Porto
Academic / other
Locations1 site (Porto)
StatusRecruiting
StartedJune 1, 2025
Main results expectedJanuary 2027
Study endsApril 2027
Registry record updatedSeptember 24, 2026
Trial IDNCT07839741 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults 18–75 starting ezetimibe as monotherapy or with stable background lipid-lowering therapy and no changes to other lipid medications at initiation.

Probably not a fit

Patients who do not experience substantial LDL-C reductions or whose treatment plan changes during ezetimibe initiation may not receive anticipated benefits from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This pragmatic, open-label study in routine clinical practice looks at adults 18–75 who need additional cholesterol lowering and are starting ezetimibe at standard dose. Researchers will collect baseline clinical data, diet and activity information, and 24-hour urine samples, then measure LDL-C and other lipids after ezetimibe initiation to identify predictors of response. Multivariable analyses will explore how lifestyle and health factors influence LDL reduction, aiming to improve personalized lipid-lowering strategies. The study is single-center and observational, conducted at a Porto-based health unit with Universidade do Porto as lead sponsor.

Why it matters

Potential benefit: If successful, the findings could help doctors personalize ezetimibe therapy to maximize LDL reduction for individual patients.

How similar studies have gone: Previous research shows variability in response to lipid-lowering medicines; this study builds on that by focusing on real-world predictors to improve personalization.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

* Age ≥18 and ≤75 years at the time of ezetimibe initiation;
* Initiation of ezetimibe as monotherapy or, in patients already treated with statins or other LDL-C-lowering agents, provided that neither the compound nor the dose of the concomitant LDL-C-lowering therapy was modified at the time of ezetimibe initiation.

Exclusion criteria:

* Absence of indication for ezetimibe therapy as determined by the treating physician;
* Initiation of ezetimibe with concomitant modification of statin or other LDL-C-lowering medication type or dosage;
* Initiation of ezetimibe/statin combination therapy as the first lipid-lowering regimen.

Where it's running

  • Unidade Local de Saúde São João
    Porto, Portugal
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.