ISRCTN - ISRCTN00926323: The HeartCycle heart failure trials programme

Plain English Summary

Not provided at time of registration

Trial website

http://heartcycle.med.auth.gr/

Contact information

Type

Scientific

Primary contact

Prof John Cleland

ORCID ID

Contact details

Department of Cardiology
Daisy Building
Castle Hill Hospital
Cottingham
Hull
HU16 5JQ
United Kingdom
+44 (0)148 246 1780
j.g.cleland@hull.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

HeartCycle 002

Study information

Scientific title

An observational trial with randomised components investigating the ability of a third generation home telemonitoring system to enhance the management of patients with new-onset, recurrent or persistent severe heart failure

Acronym

HeartCycle 002

Study hypothesis

To assess the utility of home telemonitoring of patients with heart failure with an existing system (Philips MOTIVA), but which has upgraded software to incorporate care-plans and clinical algorithm functions into the device. These have been designed to inform both the patients and the health professionals caring for them about progress towards therapeutic targets and timing of appropriate investigations and changes in therapy changes. Existing home telemonitoring systems are based on the concept of early crisis detection. The new system provides the same crisis detection facilities but focusses on a concept of health maintenance, since identification of health crises will always be imperfect. It is hoped that such systems will prove to exert a much more profound reduction in morbidity and mortality than existing systems but proof of this awaits major outcome studies that will be based on the experience gained from studies such as this.

Ethics approval

Yorkshire and Humber REC, ref 11/YH/0118 approval pending as of 23/03/2011

Study design

Observational randomised cross over studies in four phases

Primary study design

Observational

Secondary study design

Randomised controlled trial

Trial setting

Hospitals

Trial type

Treatment

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Heart failure

Intervention

1. The study is conducted in three phases and the overall study experience constitutes a fourth
2. Patients who have had a recent hospitalisation for heart failure or who have heart failure but who have not yet required hospitalisation will be invited to participate in a home telemonitoring (HTM) programme. HTM is provided by a set-top box and interactive television.
3. The patient is asked to measure heart rate, blood pressure and weight each morning and evening with user-friendly, wireless equipment
4. This information is relayed to a central computer, which provides feedback to the patient and the health professional and develops treatment recommendations
5. The patient receives heart rate, blood pressure and weight charts together with a 'healthy' range selected for that individual by the nurse or doctor
6. Lifestyle advice and small changes in diuretic (water-pill) dose go directly to both patient and health professional
7. More complex advice goes only to the nurse or doctor with the patient only alerted to expect to receive a telephone call about what to do
8. The first part of the protocol (A) is designed to introduce the patient to the monitoring system, sort out their treatment according to the individual management plan agreed with their doctor and make sure it is safely implemented and to assess stability
9. This observational period may last up to two months
10. The second part of the protocol (B) is designed either to minimise the use of diuretics (water pills) in patients who have few or no symptoms or optimise them in patients who remain symptomatic despite conventional diuretic doses
11. Minimising diuretic use is rarely done in routine clinical practice as there has been no reliable way of monitoring symptoms and fluid (weight) gain that indicate the need to restart diuretics
12. Many patients are probably needlessly treated with higher doses of diuretic than they need to control symptoms and there are concerns that this may adversely affect body systems including the kidney
13. On the other hand, many patients remain symptomatic despite diuretics and doses are often not increased to try to obtain optimal symptom relief
14. This will be conducted as a cross-over study with one month study periods, comparing usual care with the new strategy
15. The third part of the protocol (C) is designed to assess the effects of diet (eg:-coffee, salt, large meal) and environment (eg:- stressed, cool, warm, just after exercise or a shower) and timing of medication (single missed doses)
16. This will be conducted without the HTM nurse or doctor knowing what the intervention is until after they have 'guessed'
17. This is designed to see if these interventions have a substantial effect on HTM measurements and whether HTM staff can spot them
18. Protocol D lasts until 6 months after the last patient has been enrolled
19. This will enable assessment of what proportion of time patients remain in the 'health-maintenance' range with respect to heart rate, blood pressure and other vital signs and to obtain greater experience in the early detection of events leading to hospitalisation or death

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

1. Protocol A: Observational Study of Therapy Optimisation.
1.1. Success will be measured as the proportion of patients reaching the target doses of each medication in their Care-Plan unless a specific contra-indication develops (such as bradycardia, hypotension, hyperkalaemia or renal dysfunction) to reaching target doses
1.2. The main aim of this part of the protocol is to provide a user-friendly tool that encourages and supports the health professional to optimise treatments that are known to alter prognosis
2. Protocol B Randomised, Open-label Diuretic Dose Minimisation and Optimisation:
2.1. Diuretic Minimisation Protocol: the primary outcome of this will be patient preference (see 7-point Likert scale which will be the evaluation tool in appendix) for down-titration or usual maintenance dose of diuretic.
2.2. Diuretic Optimisation Protocol: the primary outcome of this will be patient preference for up-titration rather than usual maintenance dose of diuretic.
3. Protocol C - Clinical Calibration Protocol:
A Single (Investigator) -Blind Assessment Trial of Everyday Patient Events:
Although interventions occur at random, this study will be analysed principally as an observational study designed to assess the impact of the challenges of everyday life on monitored vital signs.
4. Protocol D Long-term Evaluation:
This portion of the study focuses on the technical ability of the system to maintain the patients' vital monitoring signs within individually-tailored 'ideal' ranges and to gather information on medical events that were or were not predicted by the system

Secondary outcome measures

No secondary outcome measures

Overall trial start date

01/06/2011

Overall trial end date

01/03/2013

Reason abandoned

Eligibility

Participant inclusion criteria

1. A clinical diagnosis of heart failure:
1.1. Cause of heart failure may be for any reason other than those that are rapidly reversible (see exclusion criteria)
1.2. May include patients with and without a low left ventricular ejection fraction or with valve disease
2. Requiring treatment with at least 40mg/day of furosemide or equivalent (1mg of bumetanide or 10mg of torasemide)
3. Evidence of advanced or unstable disease
4. Admission to hospital for or complicated by heart failure currently or within the previous 60 days. It is expected that most patients will be recruited by this criterion.
5.. Out-patients with persistent New York Heart Association (NYHA) III/IV symptoms
6. An elevated N-terminal pro-hormone of brain natriuretic peptide (NT-proBNP):
6.1. >1,000pg/ml if in sinus rhythm, including atrio-biventricular pacing
6.2. >2,000pg/ml if not in sinus rhythm

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

180

Participant exclusion criteria

1. Unwilling to comply with the protocol
2. Patients should be willing and able to make daily measurements at home throughout Protocol B
3. Rapidly reversible causes of heart failure such as severe anaemia (defined as the need for a blood transfusion), thyrotoxicosis, admission with rapid (>120bpm), atrial fibrillation with good ventricular function
4. Inability, in the investigators opinion, to operate or comply with the home telemonitoring system (HTM) system, even with available support from carers and health volunteers if available
5. Patients who are unable to communicate directly or indirectly in the local language (English in the UK, German in Germany and Spanish in Barcelona) cannot participate
6. People aged <18 years and vulnerable patient groups such as those with dementia, psychotic illness or educationally severely subnormal will be excluded

Recruitment start date

01/06/2011

Recruitment end date

01/03/2013

Locations

Countries of recruitment

Germany, Spain, United Kingdom

Trial participating centre

Castle Hill Hospital
Hull
HU16 5JQ
United Kingdom

Sponsor information

Organisation

Philips Research Laboratories (Germany)

Sponsor type

Research organisation

Website

Funders

Funder type

Government

Funder name

Seventh Framework Programme

Alternative name(s)

EC Seventh Framework Programme, European Commission Seventh Framework Programme, EU Seventh Framework Programme, European Union Seventh Framework Programme, FP7