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Effect of Continuing Versus Holding Metformin During Hospitalizations.

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

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06296836
Enrollment
22
Registered
2024-03-06
Start date
2025-01-21
Completion date
2026-04-30
Last updated
2026-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2

Brief summary

A randomized study of continuing versus holding metformin during hospitalizations to internal medicine services to determine the effects on glucose control, acidosis, abdominal symptoms, length of stay, and mortality.

Detailed description

The purpose of this study is to determine what the effects of the routine practice of holding metformin in hospitalized patients with type 2 diabetes are on outcomes. The objectives of this study are to determine how holding versus continuing metformin during hospitalization to an internal medicine service affects the incidences of lactic acidosis, mean anion gap, mean glucose levels, low and very high blood sugars, GI effects after discharge, lack of continuation of metformin upon discharge, mean glucose levels, lengths of stay, and 30-day mortality.

Interventions

DRUGMetformin

Continuation of home metformin

Sponsors

University of Illinois at Chicago
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Randomized, parallel, prospective trial.

Eligibility

Sex/Gender
ALL
Age
18 Years to 110 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Mean glucose levelsDuring hospitalizationAverage of daily glucose levels during hospitalization

Secondary

MeasureTime frameDescription
Incidence of hyperglycemia greater than 300 mg/dl.During hospitalizationGlucose \> 300
Incidence of hypoglycemia (Glu = 54 - 70).During hospitalizationGlu = 54 - 70
Incidence of moderate hypoglycemia (Glu < 54)During hospitalizationGlu \< 54
Incidence of severe hypoglycemia (Glu < 54 with symptoms)During hospitalizationGlu \< 54 with symptoms
Mean lactic acid levels.During hospitalizationMean lactic acid levels
Incidence of lactic acid levels greater than 2.0.During hospitalizationLactic acid \> 2.0
Mean anion gap.During hospitalizationMean anion gap, a calculated value
Incidence of anion gap > 11During hospitalizationAnion Gap \> 11
Incidence of elevated lactic acid level or anion gap.During hospitalizationLactic acid \> 2.0 or Anion Gap \> 11
Incidence of inadvertently not continuing metformin on dischargeAt dischargeTransitions of care
GI adverse effectsWithin 3 days of dischargeGI side effects after discharge
Mortality30 +/- 3 days after dischargeMortality as determined via chart search and follow up phone call

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 18, 2026