CClinicalTrials.gg
CompletedNCT05419115SUBCUT-HF IIUpdated Mar 30, 2026

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

A Phase 2 interventional study of SQIN-Furosemide and SQIN-Infusor in Heart Failure, sponsored by NHS Greater Glasgow and Clyde. Completed at 22 sites in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-30.

Sponsored by NHS Greater Glasgow and Clyde · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
172
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study 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.

Read the 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.

02

Conditions studied

  • Heart Failure

Browse trials for

03

In context

Heart Failure

5,701 studies on the registry are indexed under Heart Failure; 1,220 are open to participants now.

This study's enrollment of 172 is above the median of 72 across 3,736 interventional studies indexed under Heart Failure.

Browse Heart Failure studies →

Lead sponsor

NHS Greater Glasgow and Clyde is the lead sponsor of 215 studies on the registry; 39 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts 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

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
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
172 participants (actual)

Study arms

  • No intervention
    Usual Care

    Open label, 1:1 randomisation to usual care in hospital vs early supported discharge with SQIN-Furosemide administered via SQIN-Infusor. Usual care: Usual care as per institutional practice (including IV diuretics)

  • Experimental
    Early supported discharge

    Open label, 1:1 randomisation to usual care in hospital vs early supported discharge with SQIN-Furosemide administered via SQIN-Infusor. Early supported discharge: with SQIN-Furosemide and SQIN-Infusor. SQIN-Furosemide: 80mg of SQIN-Furosemide in each cartridge; 5 hours running time; up to 2 applications in 24h (maximum dose of 160mg of SQIN-Furosemide in 24h). SQIN-Infusor: patient/carer administered.

    Drug: SQIN-Furosemide · Device: SQIN-Infusor

Interventions

  • DrugSQIN-Furosemide

    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.

06

What researchers measure

Primary outcomes

  1. Days Alive Out of Hospital

    Days spent alive and out of hospital (DAOH), from randomisation to 30 days.

    Time frame: 30 days

Secondary outcomes

  1. Length of index hospitalisation

    Length of index hospitalisation

    Time frame: 30 days

  2. Change in quality of life

    Change in quality of life at 60 days (assessed by Kansas City Cardiomyopathy Questionnaire \[KCCQ-12\]) \[0-100\]

    Time frame: 60 days

  3. Days Alive Out of Hospital

    Days spent alive and out of hospital (DAOH), from randomisation to 60 days.

    Time frame: 60 days

  4. Total number of HF hospitalisations at 60 days

    Total number of HF hospitalisations at 60 days

    Time frame: 60 days

  5. CV death or first HF hospitalisation at 60 days

    CV death or first HF hospitalisation at 60 days

    Time frame: 60 days

  6. CV mortality at 60 days

    CV mortality at 60 days

    Time frame: 60 days

  7. 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])

    Safety as determined by treatment emergent adverse events (TEAEs) (including serious adverse events \[SAEs\]) and adverse drug events (ADEs) (including serious adverse drug events \[SADEs\])

    Time frame: 60 days

  8. Any device failures (e.g., adhesive failure and drug delivery failure)

    Any device failures (e.g., adhesive failure and drug delivery failure)

    Time frame: 60 days

07

Study locations

22 sites
  • Stoke Mandeville Hospital
    Aylesbury, England HP21 8AL, United Kingdom
  • Basildon University Hospital
    Basildon, England SS16 5NL, United Kingdom
  • Blackpool Victoria Hospital
    Blackpool, England FY3 8NR, United Kingdom
  • University Hospitals Dorset
    Bournemouth, England BH7 7DW, United Kingdom
  • Southmead Hospital
    Bristol, England BS10 5NB, United Kingdom
  • University Hospital of North Tees
    Hardwick, England TS19 8PE, United Kingdom
  • Wycombe General Hospital
    High Wycombe, England HP11 2TT, United Kingdom
  • Leeds General Infirmary
    Leeds, England LS1 3EX, United Kingdom
  • Glenfield Hospital
    Leicester, England LE3 9QP, United Kingdom
  • St Thomas' Hospital
    London, England SE1 7EH, United Kingdom
  • St. George's University of London
    London, England SW17 0RE, United Kingdom
  • Manchester Heart Centre
    Manchester, England M13 9WL, United Kingdom
  • Queen Alexandra Hospital
    Portsmouth, England PO6 3LY, United Kingdom
  • Sunderland Royal Hospital
    Sunderland, England SR4 7TP, United Kingdom
  • University Hospital Ayr
    Ayr, Scotland KA6 6DX, United Kingdom
  • Ninewells Hospital
    Dundee, Scotland DD1 9SY, United Kingdom
  • Glasgow Royal Infirmary
    Glasgow, Scotland G12 8TA, United Kingdom
  • Forth Valley Hospital
    Larbert, Scotland FK5 4WR, United Kingdom
  • Queen Elizabeth University Hospital
    Glasgow, Strathclyde G51 4TF, United Kingdom
  • The Great Western Hospital
    Swindon, United Kingdom SN3 6BB, United Kingdom
  • University Hospital Monklands
    Airdrie, ML6 0JS, United Kingdom
  • University Hospital Southampton
    Southampton, United Kingdom
08

References and documents

Publications

  • Campbell RT, Osmanska J, Docherty KF, Ahmed FZ, Clark AL, Clayton L, Cleland JGF, Critoph C, Dewhurst M, Hartshorne-Evans N, Gardner RS, Gatenby KV, Guha K, Kalra PR, Lees A, McConnachie A, Muntendam P, Mowat K, O'Donnell J, Placzek A, Ray R, Savage HO, Schiff R, Squire I, Wetherall K, Wong K, Wong C, McMurray JJV, Petrie MC. SUBCUT HF II: rationale and design of a multicentre randomized controlled trial of SUBCUTaneous furosemide to support early discharge in patients admitted to hospital due to Heart Failure. Eur J Heart Fail. 2026 May 2;28(1):121-129. doi: 10.1093/ejhf/xuaf018. PubMed 41771109 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05419115
Lead sponsor
NHS Greater Glasgow and Clyde
Collaborators
University of Glasgow
Responsible party
Sponsor
First posted
Jun 15, 2022
Start date
Nov 17, 2022
Primary completion
Mar 1, 2026
Completion
Mar 1, 2026
Last update
Mar 30, 2026

Study contacts

Mark Petrie, MBChB
principal investigator · University of Glasgow
Ross Campbell, MBChB
principal investigator · University of Glasgow

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion