Predicting how quickly fluid around the lung will come back after draining

ISRCTN ISRCTN16567838
DOI https://doi.org/10.1186/ISRCTN16567838
IRAS number 295614
Secondary identifying numbers CPMS 49373, IRAS 295614
Submission date
19/07/2021
Registration date
29/09/2021
Last edited
10/01/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

https://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-study-to-try-and-work-out-when-fluid-around-the-lungs-comes-back-repeat

Background and study aims
People with incurable cancer commonly feel breathless due to the build-up of fluid around the lung. Treatment aims to help symptoms and prevent admission to hospital. This is done by draining fluid off, but it often comes back. When this happens, patients are offered a permanent implanted drain so they can drain the fluid off regularly at home. However, sometimes the fluid builds up very quickly before there is time to implant a drain. The patient becomes very breathless and needs an emergency hospital admission. In other people, the fluid builds up slowly and they may never need another drain. The aim of this study is to improve treatment by finding a way to predict how quickly fluid will come back.

Who can participate?
Patients aged 18 years and over who have a pleural effusion and are coming to the Pleural Clinic to have the fluid drained off

What does the study involve?
Participants will be asked some extra questions about their symptoms before they have the fluid drained and complete a questionnaire about their quality of life. They may also have some extra blood tests and pleural fluid samples taken. These extra samples are optional and participants can still take part even if they do not wish to have these extra samples taken. About 10 ml (about 2 teaspoonfuls) of blood and 10 ml of pleural fluid will be collected at the first visit. These samples will be taken at the same time as the standard clinical samples. Participants will have an ultrasound after the fluid has been drained. This ultrasound is additional to standard care. Participants will be asked to complete a short daily diary about their breathing over 1 week. To complete this diary, they will be asked to mark on a single horizontal line of 10 cm how breathless they are feeling on the day. This should not take more than a few minutes each day.
When participants come back to Pleural Clinic for the results of their fluid analysis 1 week after the drainage procedure, they will have a chest X-ray at this appointment and further drainage if necessary. This is part of standard medical care that they would have whether they wish to be part of this study or not. At this visit, participants will be asked to complete a short questionnaire. This questionnaire consists of statements relating to mobility, self-care, usual activities, pain/discomfort and anxiety and depression. They can either complete the questionnaire on paper or they can have the questions read to them and the researcher will record the participant’s responses. Participants will not have to come to the hospital any extra times to be part of the study but they will be contacted at 1 month and 3 months after their procedure to find out if they have needed any further pleural procedures or other treatments, or if they have had any emergency hospital attendances. They will also be asked to complete the questionnaire again over the phone at 3 months.

What are the possible benefits and risks of participating?
There are no specific disadvantages or risks of taking part in this study. All chest X-rays, clinic visits and most procedures would happen regardless of whether participants are part of the study or not. However, the participants will have an additional thoracic ultrasound and they will be asked to donate samples of their blood and pleural fluid, complete the daily breathlessness diary and complete a questionnaire, which will require some extra time on their part.

Where is the study run from?
Norfolk and Norwich University Hospitals NHS Foundation Trust (UK)

When is the study starting and how long is it expected to run for?
June 2021 to September 2023

Who is funding the study?
National Institute for Health Research (NIHR) (UK)

Who is the main contact?
Dr Eleanor Mishra
eleanor.mishra@nnuh.nhs.uk

Contact information

Dr Eleanor Mishra
Scientific

Norfolk and Norwich University Hospital NHS Foundation Trust
Department of Respiratory Medicine
Norfolk and Norwich University Hospital
Colney Lane
Norwich
NR4 7UY
United Kingdom

Phone +44 (0)1603286286
Email eleanor.mishra@nnuh.nhs.uk

Study information

Study designObservational; Design type: Cohort study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet 40179_PIS_OtherSitesNoSamples_V2.0_27May21.pdf
Scientific titleReaccumulation rate of Pleural Effusions After Therapeutic aspiration: an observational cohort study to determine baseline factors associated with the rate of pleural fluid reaccumulation following therapeutic aspiration in patients with malignant pleural effusion attending a pleural clinic
Study acronymREPEAT phases 1 and 2
Study objectivesIt is hypothesized that there are baseline clinical variables that determine how quickly pleural fluid will reaccumulate after therapeutic aspiration. Determination of these variables will allow us to develop a clinical score to predict this and improve patient management.
Ethics approval(s)Approved 15/06/2021, London - Queen Square Research Ethics Committee (HRA NRES Centre Bristol, 3rd Floor, Block B, Whitefriars, Lewins Mead, Bristol, BS1 2NT, UK; +44 (0)207 104 8061; queensquare.rec@hra.nhs.uk), REC ref: 21/PR/0607
Health condition(s) or problem(s) studiedMalignant pleural effusion
InterventionScreening:
1. Identification of patients attending Pleural Clinic for therapeutic aspiration
2. Contact participants via telephone to let them know about the study and provide them with a patient information leaflet in the post with their clinic appointment

Day 0:
1. When patients attend the Pleural Clinic, they will have the opportunity to discuss the study and have their questions answered. They will then give informed consent for enrolment into the study
2. Patients will have bloods taken as part of routine clinical care. An additional optional sample will be taken for the study
3. Patients will have a thoracic ultrasound performed as part of routine clinical care
4. Patients will then undergo therapeutic aspiration and samples of the pleural fluid that would otherwise be discarded will be stored
5. Patients will then have a repeat thoracic ultrasound. This is not part of standard clinical care
6. Patients will have a chest X-ray as part of standard clinical care
7. They will be provided with a breathlessness diary for them to record their breathlessness daily for 1 week

Day 7:
1. The patient will attend clinic as part of their routine clinical care
2. They will have a chest X-ray as part of standard clinical care
3. The diary will be collected
4. The patient will have a thoracic ultrasound as part of standard clinical care

Definitive pleural procedure:
This will occur when indicated clinically. Patients will have a chest X-ray and ultrasound as part of standard clinical care and undergo a definitive pleural procedure (thoracoscopy, chest drain insertion or indwelling pleural catheter insertion)

Day 30:
Follow up by telephone/review of hospital records to determine further pleural procedures, emergency hospital attendances

3 months:
Follow up by telephone/review of hospital records to determine further pleural procedures, emergency hospital attendances
Intervention typeProcedure/Surgery
Primary outcome measureThe size of pleural effusion measured using chest X-ray on day 0 and day 7
Secondary outcome measuresBiomarkers measured at baseline:
1. Patient biomarkers (e.g. duration of symptoms in days) measured using questionnaires
2. Effusion biomarkers (e.g. volume of fluid drained) measured using data recorded during the drainage procedure
3. Pleural fluid biomarkers (e.g. total protein) measured using standard laboratory analysis
4. Serum biomarkers (e.g. CRP) measured using standard laboratory analysis
Overall study start date15/06/2021
Completion date26/09/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participantsPlanned Sample Size: 240; UK Sample Size: 240
Total final enrolment241
Key inclusion criteria1. Participant is willing and able to give informed consent for participation in the study
2. Aged 18 years or above
3. Diagnosed with pleural effusion on CT or ultrasound (US)
4. Patient attending for therapeutic aspiration (large volume drainage) of their pleural effusion: there is no specific minimal pleural fluid volume but this should be larger than required for diagnosis alone (typically 60 ml is taken for diagnostic purposes)
5. Known or suspected malignancy as the underlying cause of the effusion
6. In the Investigator’s opinion, is able and willing to comply with all study requirements
Key exclusion criteria1. Patients who are pregnant or lactating
2. Pleural infection or other condition requiring admission and chest drain insertion
3. Known transudative pleural effusion or pleural effusion thought to be primarily due to cardiac, renal or hepatic impairment
Date of first enrolment11/10/2021
Date of final enrolment26/06/2023

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

Norfolk and Norwich University Hospital
Norfolk and Norwich University Hospitals NHS Foundation Trust
Colney Lane
Colney
Norwich
NR4 7UY
United Kingdom
John Radcliffe Hospital
Oxford University Hospitals NHS Foundation Trust
Headley Way
Headington
Oxford
OX3 9DU
United Kingdom
Southmead Hospital
North Bristol NHS Trust
Southmead Rd
Bristol
BS10 5NB
United Kingdom
Derriford Hospital
University Hospitals Plymouth NHS Trust
Derriford Road
Derriford
Plymouth
PL6 8DH
United Kingdom
Leicester Royal Infirmary
University Hospitals of Leicester NHS Trust
Infirmary Square
Leicester
LE1 5WW
United Kingdom

Sponsor information

Norfolk and Norwich University Hospitals NHS Foundation Trust
Hospital/treatment centre

c/o Julie Dawson
Colney Lane
Colney
Norwich
NR4 7UY
England
United Kingdom

Phone +44 (0)1603 647882
Email julie.dawson@nnuh.nhs.uk
Website http://www.nnuh.nhs.uk/
ROR logo "ROR" https://ror.org/01wspv808

Funders

Funder type

Government

NIHR Central Commissioning Facility (CCF); Grant Codes: NIHR201466

No information available

Results and Publications

Intention to publish date31/03/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in publicly available repository
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be stored in a publicly available repository

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version v2.0 27/05/2021 22/07/2021 No Yes
Participant information sheet version v2.0 27/05/2021 22/07/2021 No Yes
Participant information sheet version v2.0 27/05/2021 22/07/2021 No Yes
Protocol file version v1.0 05/05/2021 22/07/2021 No No
HRA research summary 28/06/2023 No No

Additional files

40179_PIS_OtherSitesNoSamples_V2.0_27May21.pdf
40179_PIS_NorfolkAndNorwich_V2.0_27May21.pdf
40179_PIS_OtherSitesWithSamples_V2.0_27May21.pdf
40179_PROTOCOL_V1.0_05May21.pdf

Editorial Notes

10/01/2025: The intention to publish date was changed from 31/12/2024 to 31/03/2025.
13/09/2024: The intention to publish date was changed from 31/03/2024 to 31/12/2024.
01/09/2023: The contact confirmed the record is up to date.
21/07/2023: The following changes were made to the study record:
1. The recruitment end date was changed from 01/07/2023 to 26/06/2023.
2. The overall study end date was changed from 01/06/2024 to 26/09/2023.
3. The intention to publish date was changed from 01/06/2025 to 31/03/2024.
4. Total final enrolment and IPD sharing statement added.
31/01/2023: Cancer Research UK plain English summary link added to plain English summary field.
19/07/2021: Trial's existence confirmed by the NIHR.