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Use of a Novel SUBCUTaneous Preparation of Furosemide to Facilitate Early Supported Discharge of Patients With Heart Failure

Use of a Novel SUBCUTaneous Preparation of Furosemide to Facilitate Early Supported Discharge of Patients With Heart Failure: a Multicentre, Phase II, Randomised, Parallel Group, Active Comparator Controlled Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05419115
Acronym
SUBCUT-HF II
Enrollment
172
Registered
2022-06-15
Start date
2022-11-17
Completion date
2026-03-01
Last updated
2026-03-30

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

Conditions

Heart Failure

Brief summary

To investigate whether an early supported discharge strategy for patients admitted to hospital because of HF, using a pH neutral subcutaneous (SC) furosemide formulation (SQINFurosemide) at home (delivered by non-CE marked SQINInfusor), compared to a usual care strategy with intravenous (IV) furosemide in hospital, results in an increased number of days spent alive and out of hospital (DAOH) at 30 days.

Detailed description

HF is associated with frequent and lengthy hospitalisations. These hospitalisations are usually as a result of congestion, and the standard treatment of this is decongestion with intravenous (IV) diuretic (usually furosemide). This is usually delivered in a hospital setting. A new formulation of a pHneutral furosemide (SQIN-Furosemide) that can be delivered subcutaneously (SC) by a small patch pump (SQIN-Infusor) has been developed. Bioavailability of SQIN-Furosemide is similar to IV furosemide. This trial will test the efficacy and safety of novel SC furosemide 30mg/ml (SQIN-Furosemide), delivered in a home environment (compared to usual care strategy with IV furosemide delivered in secondary care) as part of a novel early supported discharge strategy in patients admitted to hospital with HF.

Interventions

The investigational furosemide formulation (SQIN-Furosemide) is a Captisol®buffered solution of 80mg furosemide in 2.7 mL (30 mg/mL) at pH 7.4 (range: 7.0 to 7.8). SC infusion will be performed using the SQIN-Infusor which will deliver 2.7 mL of the SQIN-Furosemide formulation (80mg) over approximately 5 hours, using a biphasic delivery profile.

DEVICESQIN-Infusor

The investigational device (SQIN-Infusor) is an on-body delivery system that consists of a RU, DU, plus a charger (Figure 2). For the purpose of SUBCUT-HF II trial, the RU will be used for multiple infusions for a single participant. The DU will be used only once per infusion and disposed of. The RU must be charged after each use and will not restart for the next infusion without charging. Charging takes up to 15 minutes. SQIN-Infusor is a bespoke system, adapted from the design of a SC insulin pump. The RU consists of the drive-unit, the controllers, the rechargeable battery, and the user interface.

Sponsors

NHS Greater Glasgow and Clyde
Lead SponsorOTHER
University of Glasgow
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Not possible

Intervention model description

randomised, parallel-group, active comparator controlled trial

Eligibility

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

Inclusion criteria

* Written informed consent * Male or female ≥18 years of age * Meet European Society of Cardiology (ESC) criteria for diagnosis of HF1 * Elevated natriuretic peptide (BNP\> 100 pg/mL or NTproBNP \>300 pg/mL) * Signs and symptoms of HF * Echocardiographic structural or functional abnormality according to ESC guidelines * Have received IV diuretic for treatment of HF within preceding 24 hours * Be less than 96 hours after admission to hospital * Requiring IV diuretics for a minimum of 24 hours after screening * Have an echocardiogram or other assessment of cardiac structure and function within preceding 12 months or at screening * Have a home environment that allows the patient to be able to mobilise within their residence and be able to pass urine into their toilet (unless catheterised) * Able to operate (or has a caregiver who can operate) SQIN-Infusor (as assessed by training on a dummy device at screening)

Exclusion criteria

* Unable to consent due to significant cognitive impairment or lack of capacity * Unable to operate SQIN-Infusor (or no caregiver who is able to operate the device) * Geographical reasons preventing follow-up visits * Pregnancy or breast-feeding * Requiring treatment with IV furosemide \>250 mg furosemide per day in the opinion of the treating physician * Left sided valve disease with planned surgery or percutaneous intervention * Type 1 myocardial infarction during index hospitalisation (participants with type 2 myocardial infarction can be included)2 * Renal impairment, defined as estimated glomerular filtration rate (eGFR) \< 20 mL/min/1.73 m 2 at screening * Reasons (other than HF) which may prevent discharge from hospital, such as social circumstances or other significant medical condition (at investigator discretion) * Women of childbearing potential * Patient on active cardiac transplant waiting list * Patient requiring on-going inotropic, vasopressor or intraaortic balloon pump support * Potassium \<3.0 mmol/L * Potassium \>6.0 mmol/L * Sodium \<125 mmol/L * Any surgical or medical condition which, in the opinion of the investigator, may pose an undue risk to the subject, interfere with participation in the study or which may affect the integrity of the data

Design outcomes

Primary

MeasureTime frameDescription
Days Alive Out of Hospital30 daysDays spent alive and out of hospital (DAOH), from randomisation to 30 days.

Secondary

MeasureTime frameDescription
Length of index hospitalisation30 daysLength of index hospitalisation
Change in quality of life60 daysChange in quality of life at 60 days (assessed by Kansas City Cardiomyopathy Questionnaire \[KCCQ-12\]) \[0-100\]
Days Alive Out of Hospital60 daysDays spent alive and out of hospital (DAOH), from randomisation to 60 days.
Total number of HF hospitalisations at 60 days60 daysTotal number of HF hospitalisations at 60 days
CV death or first HF hospitalisation at 60 days60 daysCV death or first HF hospitalisation at 60 days
CV mortality at 60 days60 daysCV mortality at 60 days
Safety as determined by treatment emergent adverse events (TEAEs) (including serious adverse events [SAEs]) and adverse drug events (ADEs) (including serious adverse drug events [SADEs])60 daysSafety as determined by treatment emergent adverse events (TEAEs) (including serious adverse events \[SAEs\]) and adverse drug events (ADEs) (including serious adverse drug events \[SADEs\])
Any device failures (e.g., adhesive failure and drug delivery failure)60 daysAny device failures (e.g., adhesive failure and drug delivery failure)

Countries

United Kingdom

Contacts

PRINCIPAL_INVESTIGATORMark Petrie, MBChB

University of Glasgow

PRINCIPAL_INVESTIGATORRoss Campbell, MBChB

University of Glasgow

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026