NCT06624956

Brief Summary

The PATCH pilot trial aims to establish feasibility and determine the sample size of a future, large-scale, multi-site RCT, as well as reinforce the long-standing known safety profile of glucose, insulin, and potassium (GIK) and explore the physiologic response. We hypothesize that the use of GIK in non-diabetic patients undergoing abdominal surgery, will reduce rates of morbidity \& death compared to standard of care treatment. In brief, primary outcomes of interest include estimation of the standard deviation (to derive a sample size estimation) and the ability to recruit target population, assessment of patient compliance/burden, and assessment of provider compliance/burden (feasibility).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
106

participants targeted

Target at P50-P75 for phase_4 surgery

Timeline
Completed

Started Sep 2024

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 4, 2024

Completed
21 days until next milestone

First Submitted

Initial submission to the registry

September 25, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

October 3, 2024

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 28, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2026

Completed
Last Updated

February 23, 2026

Status Verified

February 1, 2026

Enrollment Period

1.1 years

First QC Date

September 25, 2024

Last Update Submit

February 19, 2026

Conditions

Outcome Measures

Primary Outcomes (5)

  • 30-day Clinical NSQIP-defined serious adverse events

    Estimate the standard deviation in support of anticipated, large-scale RCT for the outcome 30-day Clinical NSQIP-defined serious adverse events

    30 days

  • Patient compliance/burden

    Number patient refusal events vs enrolled

    1 day

  • Ability to recruit the target population

    Number of patients screened per month vs number of patients enrolled per month

    1 day

  • Provider compliance/burden

    Number of times GIK stopped for 20 minutes

    1

  • Safety

    Number of AEs and SAEs, thought to be at least possibly related to treatment, as well as associated AE type

    1 day

Secondary Outcomes (2)

  • Number of hyperglycemic and hypoglycemic events

    1 day

  • Length of stay in hospital

    30 days

Other Outcomes (2)

  • Postoperative inflammation

    1 day

  • Postoperative inflammation

    1 day

Study Arms (2)

Standard Care

PLACEBO COMPARATOR

Subjects in the standard care/placebo arm will receive only regular crystalloid.

Drug: Crystalloid Infusion

GIK

ACTIVE COMPARATOR

Subjects in the glucose, insulin, and potassium (GIK) arm will receive regular crystalloid with GIK added.

Drug: glucose, insulin, and potassium (GIK)Drug: Crystalloid Infusion

Interventions

GIK formulation: 100 g/L glucose, 33 U/L insulin, and 40 mmol/L KCl Reference PMID: 32151220. Formulation represents a 50% reduction in compounded solute combination from the reference study, which allows for administration via peripheral IV.

GIK

placebo

GIKStandard Care

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults 18 years of age or older
  • Patients undergoing abdominal surgery planned to last greater than 4 hours with inpatient admission
  • Patients at UWMC - Montlake
  • \. Makes their own medical decisions: patient is deemed to have decisional capacity by the medical team and does not have a surrogate such as a spouse, partner, or caretaker making the decision on their behalf. Examples include patients with severe dementia or other cognitive limitations

You may not qualify if:

  • Known diagnosis of diabetes or altered glucose homeostasis during preoperative evaluation (single fasting blood sugar≥126 mg/dL or HbA1C≥6.5 percent).
  • Known diagnosis of chronic kidney disease (moderate-to-severe, or worse)
  • BMP within 6 months of screening is required. Patients with stage 3b (moderate-to-severe) kidney disease or worse (i.e. eGFR ≤ 30) will be excluded. Patients with a potassium reading greater than 5.5 at any point within the 6-month period will also be excluded.
  • Patients receiving chronic systemic steroids.
  • Patients undergoing cardiac or solid organ transplant procedures.
  • Surgery planned to last less than 4 hours.
  • Outpatient surgery
  • Pregnant people
  • Current UW Medicine or UW Dentistry residents and fellows
  • Known hypersensitivity to potassium, glucose, insulin, or any of its excipients.
  • Enrollment in another therapeutic study
  • Any serious underlying medical or psychiatric condition, dementia, altered mental status or any issue that would impair the ability of the patient to receive or tolerate the planned treatment, to understand informed consent or that in the opinion of the investigator would contraindicate the patient's participation in the study or that would confound the results of the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Washington Medical Center

Seattle, Washington, 98195, United States

Location

Related Publications (2)

  • Zhao K, Zhang Y, Li J, Cui Q, Zhao R, Chen W, Liu J, Zhao B, Wan Y, Ma XL, Yu S, Yi D, Gao F. Modified Glucose-Insulin-Potassium Regimen Provides Cardioprotection With Improved Tissue Perfusion in Patients Undergoing Cardiopulmonary Bypass Surgery. J Am Heart Assoc. 2020 Mar 17;9(6):e012376. doi: 10.1161/JAHA.119.012376. Epub 2020 Mar 10.

    PMID: 32151220BACKGROUND
  • Whitehead AL, Julious SA, Cooper CL, Campbell MJ. Estimating the sample size for a pilot randomised trial to minimise the overall trial sample size for the external pilot and main trial for a continuous outcome variable. Stat Methods Med Res. 2016 Jun;25(3):1057-73. doi: 10.1177/0962280215588241. Epub 2015 Jun 19.

    PMID: 26092476BACKGROUND

MeSH Terms

Interventions

GlucoseInsulinPotassium

Intervention Hierarchy (Ancestors)

HexosesMonosaccharidesSugarsCarbohydratesProinsulinInsulinsPancreatic HormonesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and ProteinsMetals, AlkaliElementsInorganic ChemicalsMetals, LightMetals

Study Officials

  • David Flum, MD, MPH

    University of Washington

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Potentially eligible patients will be approached on the day of surgery in a private room. Following formal, in person screening and informed consent by study team member who can thoroughly explain the study and answer patient questions, patients will be randomized to the study drug or to standard of care treatment (i.e. crystalloid infusion). All subjects will receive the same size bag of fluid and will have an infusion running during surgery. The administration of crystalloid is standard for surgeries performed at UW. Subjects in the standard/placebo arm will receive only regular crystalloid. Subjects in the GIK arm will receive regular crystalloid with GIK added. The contents of the bag will be blinded. The two fluids look the same to maintain blinding.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, Division of General Surgery

Study Record Dates

First Submitted

September 25, 2024

First Posted

October 3, 2024

Study Start

September 4, 2024

Primary Completion

September 28, 2025

Study Completion

January 1, 2026

Last Updated

February 23, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations