Comparing the effects of continuing or stopping metformin during hospital stays for diabetes patients

Effect of Continuing Versus Holding Metformin During Hospitalizations to Internal Medicine on Glucose Control, Acidosis, Abdominal Symptoms, Length of Stay, and Mortality.

Phase 4 Interventional University of Illinois at Chicago · NCT06296836

This study is testing whether keeping patients on metformin or stopping it during their hospital stay helps people with type 2 diabetes manage their blood sugar better and stay healthier.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment300 (estimated)
Ages18 Years to 110 Years
SexAll
SponsorUniversity of Illinois at Chicago Academic / other
Locations1 site (Chicago, Illinois)
Trial IDNCT06296836 on ClinicalTrials.gov

What this trial studies

This study investigates the impact of continuing versus holding metformin in hospitalized patients with type 2 diabetes. It is a randomized trial that aims to assess various outcomes, including glucose control, incidence of lactic acidosis, gastrointestinal symptoms, length of hospital stay, and 30-day mortality rates. The research will involve adult patients admitted to internal medicine services who were on metformin prior to their hospitalization. By analyzing these outcomes, the study seeks to provide insights into the best practices for managing diabetes medications during hospital stays.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older who are admitted to an internal medicine service and were taking metformin before their hospitalization.

Not a fit: Patients who are unable to take oral medications, have severe renal impairment, or are experiencing acute acidosis may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management of diabetes in hospitalized patients, potentially reducing complications and improving recovery outcomes.

How similar studies have performed: Other studies have explored the management of diabetes medications during hospitalization, but this specific comparison of continuing versus holding metformin is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult (18+ years of age)
* Admitted to an internal medicine service.
* On Metformin prior to admission.

Exclusion Criteria:

* Inability to take oral medications
* eGFR \< 30 ml/min/1.73 m2
* Dialysis
* Current Acidosis (pH \< 7.35) including diabetic ketoacidosis
* Child-Turcotte-Pugh class C hepatic cirrhosis
* Acute Decompensated Heart Failure
* Cognitively impaired and/or unable to consent
* Lack of or unwillingness to share contact information
* Pregnant women

Where this trial is running

Chicago, Illinois

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Diabetes Mellitus, Type 2
Last reviewed 2026-06-13 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.