CRT Hydration in the Last Days of Life (Feasibility Study)

NCT ID: NCT02344927

Last Updated: 2016-03-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-02-28

Study Completion Date

2016-02-29

Brief Summary

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It is unclear whether the use of fluids given by a "drip" is beneficial to cancer patients in the last days of life, and as a result many individuals do not receive such treatment (although they do receive fluids by mouth, and regular mouth care). The researchers want to undertake a large study ("main study") to determine the benefits of fluids given by a drip, but first need to undertake a small study ("feasibility study") to ensure that the main study can be done.

The feasibility study will be done in twelve units (hospitals, hospices) in England \& Wales; each unit will be allocated a treatment at random, and all patients in the unit will receive that treatment (if appropriate). Standard treatment A consists of drinking fluids (if possible), regular mouth care, and treatment of any symptoms; standard treatment B consists of drinking fluids (if possible) , regular mouth care, fluids by a drip, and treatment of any symptoms.

Patients will be assessed on a four hourly basis, and any uncontrolled symptoms will be recorded. The main symptom of interest is agitation ("delirium"), which has multiple causes, including dehydration and kidney failure. Uncontrolled symptoms will be appropriately treated, e.g. patients with pain will be given painkillers. Equally, problems relating to the fluids given by a drip will also be recorded. Involvement in the study will not interfere with the patient's general care, and there will be no additional blood or other tests.

Detailed Description

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Background:

The provision of clinically-assisted hydration (CAH) at the end-of-life is one of the most contentious issues in medicine, and indeed within the general population. The reasons for contention include:

* the lack of evidence for / against CAH;
* the disparate opinions of healthcare professionals about CAH;
* the generally positive opinions of patients and their carers about CAH (and the generally negative opinions about withholding / withdrawing CAH).

It is, therefore, unsurprising that the provision of CAH at the end-of-life is extremely variable within clinical practice (i.e. 12-88% cancer patients in the last week of life).

Hypothesis:

CAH during the last days of life reduces the frequency of hyperactive delirium ("terminal agitation") in cancer patients as a result of maintenance of renal perfusion and the prevention of accumulation of toxins and drugs (i.e. prevention of dehydration).

Aims / objectives:

The aim of the definitive study is to evaluate the utility / role of CAH in cancer patients in the last days of life.

The aim of the feasibility study is to answer the question "can this study (the definitive study) be done".

The objectives of the feasibility study are to:

* assess the recruitment rate, i.e. number eligible patients, number recruited patients, barriers to recruitment;
* assess the retention rate;
* assess impact of trial procedures on clinical workload, i.e. completion of clinical assessment documentation, undertaking mouth care / CAH;
* assess the adequacy of resources to conduct the study at research centres;
* assess the adequacy of resources to support the study at Surrey Clinical Research Centre;
* determine other challenges for researchers / research centres;
* determine other challenges for Surrey Clinical Research Centre;
* assess safety of CAH
* determine total variability / intra-cluster correlation coefficient

Methodology:

The study is a cluster randomised trial with a mixed method of consenting. Consent sought from patients (whenever possible), or advice from a "personal consultee" (when a patient is unable to provide consent), or from a "nominated consultee" (when a patient is unable to provide consent, and there is no personal consultee).

Sites will be randomised to either "standard intervention arm A", or "standard intervention arm B". Patients in standard intervention arm A will be managed with continuance of oral intake (if appropriate), and regular "mouth care". Mouth care will be performed at least every four hours, and will correspond to the investigational site's policy / procedures for oral care in the terminal phase. Patients in standard intervention arm B will be managed with continuance of oral intake (if appropriate), regular "mouth care", and CAH, i.e. parenteral fluids. Again, mouth care will be performed at least every four hours, and will correspond to the investigational site's policy / procedures for oral care in the terminal phase. The parenteral fluids may be administered either intravenously or subcutaneously at the discretion of the medical and nursing team. The type of fluid to be administered will be dextrose saline (i.e. 4% dextrose, 0.18% sodium chloride), and the volume to be administered will be dependent on the patient's weight.

The primary endpoint of the definitive study is the frequency of hyperactive delirium ("terminal agitation"), and this will be assessed using the Modified Richmond Agitation and Sedation Scale (administered every four hours). Other data to be collected include the frequency of pain, respiratory secretions / "death rattle", dyspnoea, nausea and vomiting, adverse effects from the CAH, and overall survival. In addition, data will be collected on the use of anti-psychotic drugs, sedative drugs, analgesics, anti-secretory drugs, and other end-of-life medication.

A "cluster representation mechanism" (CRM) will be utilised, including the appointment of site-specific "study guardians" and "study gatekeepers", who will protect and respect the rights of the cluster and the individual participants within the cluster.

Conditions

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Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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Non-Clinically Assisted Hydration arm

The interventions utilised within this trial are representative of standard clinical practice

* Continuance of oral intake (if appropriate)
* Regular (4 hourly) mouth care
* Standard management of pain and other symptoms in the terminal phase.

Group Type ACTIVE_COMPARATOR

Non-Clinically Assisted Hydration arm

Intervention Type OTHER

Best supportive care. Continuance of oral intake (if appropriate) and regular mouth care

Clinically Assisted Hydration arm

The interventions utilised within this trial are representative of standard clinical practice

* Continuance of oral intake (if appropriate)
* Regular (4 hourly) mouth care
* Clinically-assisted hydration
* Standard management of pain and other symptoms in the terminal phase

Group Type ACTIVE_COMPARATOR

Clinically Assisted Hydration arm

Intervention Type OTHER

Best supportive care. Continuance of oral intake (if appropriate) and regular mouth care, and clinically assisted hydration.

Interventions

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Non-Clinically Assisted Hydration arm

Best supportive care. Continuance of oral intake (if appropriate) and regular mouth care

Intervention Type OTHER

Clinically Assisted Hydration arm

Best supportive care. Continuance of oral intake (if appropriate) and regular mouth care, and clinically assisted hydration.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of cancer
* Age ≥ 18 yr
* Estimated prognosis of ≤ 1 week
* Patient unable to maintain sufficient oral intake (1L / day)

Exclusion Criteria

* Patient clinically dehydrated
* Patient has hyperactive delirium ("terminal agitation") at present
* Patient has had hyperactive delirium ("terminal agitation") in the last 24hr
* Clinical indication for clinically-assisted hydration (e.g. hypercalcaemia)
* Clinical contra-indication to clinically-assisted hydration (e.g. cardiac failure)
* Clinical contra-indication to peripheral cannulation
* Intravenous fluids / subcutaneous fluids / total parenteral nutrition (TPN) / enteral feeding or fluids already being administered
* Patient likely to be transferred to another setting for end of life care (e.g. home, hospice)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Royal Surrey County Hospital NHS Foundation Trust

OTHER

Sponsor Role collaborator

The Christie NHS Foundation Trust

OTHER

Sponsor Role collaborator

Leckhampton Hall Hospice (Cheltenham)

UNKNOWN

Sponsor Role collaborator

Pilgrims Hospices (Kent)

UNKNOWN

Sponsor Role collaborator

St Clare Hospice (Hastingwood)

UNKNOWN

Sponsor Role collaborator

New Cross Hospital, Wolverhampton

UNKNOWN

Sponsor Role collaborator

St Giles Hospice, Lichfield

UNKNOWN

Sponsor Role collaborator

St Mary;s Hospice, Birmingham

UNKNOWN

Sponsor Role collaborator

Velindre NHS Trust

OTHER_GOV

Sponsor Role collaborator

St Richards Hospice, Worcester

UNKNOWN

Sponsor Role collaborator

St Catherines Hospice, Crawley

UNKNOWN

Sponsor Role collaborator

St Margaret Hospice,Somerset

UNKNOWN

Sponsor Role collaborator

University of Surrey

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Andrew Davies

Role: PRINCIPAL_INVESTIGATOR

Royal Surrey County Hospital NHS Foundation Trust

Locations

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St Clare Hospice

Harlow, Essex, United Kingdom

Site Status

Leckampton Hall Hospice

Cheltenham, Gloucestershire, United Kingdom

Site Status

Pilgrims Hospice

Canterbury, Kent, United Kingdom

Site Status

The Christie NHS Foundation Trust

Manchester, Lancashire, United Kingdom

Site Status

New Cross Hospital

Wolverhampton, Midlands, United Kingdom

Site Status

St Margaret's Hospice

Taunton, Somerset, United Kingdom

Site Status

St Giles Hospice

Lichfield, Staffordshire, United Kingdom

Site Status

The Royal Surrey County Hospital NHS Foundation Trust

Guildford, Surrey, United Kingdom

Site Status

St Catherine's Hospice

Crawley, Sussex, United Kingdom

Site Status

St Mary Hospice

Birmingham, West Midlands, United Kingdom

Site Status

St Richards Hospice

Worcester, Worcestershire, United Kingdom

Site Status

Velindre Cancer centre

Cardiff, , United Kingdom

Site Status

Countries

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United Kingdom

References

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Davies AN, Waghorn M, Webber K, Johnsen S, Mendis J, Boyle J. A cluster randomised feasibility trial of clinically assisted hydration in cancer patients in the last days of life. Palliat Med. 2018 Apr;32(4):733-743. doi: 10.1177/0269216317741572. Epub 2018 Jan 18.

Reference Type DERIVED
PMID: 29343167 (View on PubMed)

Davies A, Waghorn M, Boyle J, Gallagher A, Johnsen S. Alternative forms of hydration in patients with cancer in the last days of life: study protocol for a randomised controlled trial. Trials. 2015 Oct 14;16:464. doi: 10.1186/s13063-015-0988-3.

Reference Type DERIVED
PMID: 26466809 (View on PubMed)

Other Identifiers

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CRC 340

Identifier Type: -

Identifier Source: org_study_id

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