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Adenosine vs Diltiazem for Treatment of SVT in the ED

COMparison of Adenosine Versus Diltiazem FOR Supraventricular Tachycardia in the ED (COMFORT-ED) - Pilot Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06993038
Acronym
COMFORT-ED
Enrollment
20
Registered
2025-05-28
Start date
2025-08-01
Completion date
2027-12-01
Last updated
2026-05-28

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

Conditions

Supraventricular Tachycardia (SVT)

Keywords

diltiazem, adenosine, emergency medicine

Brief summary

This is a small, pilot study with a primary goal of assessing patient perceptions of two medication treatments for supraventricular tachycardia in adult patients treated in the Emergency Department.

Interventions

DRUGadenosine

IV adenosine at standard doses for SVT (6 mg, 12 mg)

DRUGdiltiazem

IV diltiazem at standard doses for SVT (0.25 mg/kg)

Sponsors

Anne E. Zepeski
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

1. Adult patients (18 years and older) 2. Diagnosis of acute, stable SVT in the emergency department

Exclusion criteria

1. Receipt of IV AV-nodal blocking agents prior to study enrollment (includes adenosine, non-dihydropyridine calcium channel blockers, beta-antagonists in pre-hospital and/or hospital setting). 2. Reported or confirmed personal history of Wolff-Parkinson-White (WPW) syndrome 3. History of heart failure with reduce ejection fraction (HFrEF) (LVEF\</= 40%) 4. Severe bronchoconstrictive lung disease 5. Prior hypersensitivity to study medication 6. Previously enrolled in pilot study 7. Pregnant 8. Incarcerated

Design outcomes

Primary

MeasureTime frameDescription
Feasibility outcomeFrom enrollment to the end of ED encounter (up to 24 hours).Patients with stable SVT are identified in the ED (Threshold \>90%)

Countries

United States

Contacts

CONTACTAnne Zepeski, PharmD
anne-zepeski@uiowa.edu(319) 356-2577
PRINCIPAL_INVESTIGATORAnne Zepeski, PharmD

University of Iowa

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026