Rituximab versus cyclophosphamide in connective tissue disease-ILD

ISRCTN ISRCTN16474148
DOI https://doi.org/10.1186/ISRCTN16474148
EudraCT/CTIS number 2012-003633-42
ClinicalTrials.gov number NCT01862926
Secondary identifying numbers 17594
Submission date
01/04/2015
Registration date
02/04/2015
Last edited
10/05/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Respiratory
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Interstitial lung disease (ILD), a condition that causes inflammation and scarring of the lungs, is the leading cause of death in systemic sclerosis (SSc), and a major cause of morbidity (or illness) in many other connective tissue diseases (CTDs) a group of conditions that are caused by over activity of the immune system. If connective tissue disease associated interstitial lung disease (CTD-ILD) is severe or progressive, immunosuppressive treatment (treatment used to damp down the immune system), such as intravenous cyclophosphamide, is required to suppress inflammation and minimise progressive lung scarring. Occasionally, even intensive standard immunosuppressive drugs fail to control lung inflammation, and progressive lung damage may develop that ultimately results in death. Rituximab, a novel immunosuppressive therapy, has been proven to be of benefit in suppressing inflammation associated with immune system over activity, including pulmonary inflammation in CTDs. In this study, we want to compare how well rituximab works compared to cyclophosphamide in treating patients with severe, progressive CTD-ILD.

Who can participate?
Adults diagnosed with CTD-ILD.

What does the study involve?
Participants are randomly allocated to one of two groups. Those in group 1 are given rituximab on day one of the study and then on day 14. They are then given a placebo four weeks into the study for 16 weeks. Those in group 2 are given cyclophosphamide every 4 weeks from day one of the study to week 20. On day 14, they are given a placebo. Lung function for all participants is assessed at the end of the study.

What are the possible benefits and risks of participating?
Not provided at time of registration

Where is the study run from?
Six NHS centres in the UK

When is the study starting and how long is it expected to run for?
November 2014 to January 2021 (updated 23/06/2021, previously: December 2020; updated 15/08/2019, previously: August 2018)

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

Who is the main contact?
Veronica Tudor
V.Tudor@rbht.nhs.uk
(updated 15/08/2019, previously: Dr Vicky Tsipouri)

Contact information

Dr Veronica Tudor
Scientific

Royal Brompton & Harefield NHS Foundation Trust
Sydney Street
London
SW3 6NP
United Kingdom

Phone +44330 128 8854
Email v.tudor@rbht.nhs.uk

Study information

Study designRandomised; Interventional; Design type: Not specified, Treatment
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleA randomized, double blind controlled trial comparing rituximab against intravenous cyclophosphamide in connective tissue disease associated interstitial lung disease
Study acronymRECITAL
Study hypothesisThe aim of this trial is to we compare the effectiveness of rituximab against cyclophosphamide as first line therapy in patients with severe, progressive connective tissue disease associated interstitial lung disease (CTD-ILD).
Ethics approval(s)13/LO/0968
ConditionInterstitial lung disease in people with severe connective tissue disease, including systemic sclerosis, idiopathic interstitial myopathy (including polymyositis/dermatomyositis) and mixed connective tissue disease
InterventionPatients will be randomised on a 1:1 ratio to intravenous rituximab or intravenous cyclophosphamide.
1. Rituximab group: Rituximab will be given at a dose of 1000 mg at day 0 and day 14. At week 4 through to week 20 patients will receive placebo.
2. Cyclophosphamide group: Cyclophosphamide will be given at a dose of 600 mg/m2 body surface area every 4 weeks from day 0 through to week 20. At day 14 the group will receive placebo.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Rituximab, cyclophosphamide
Primary outcome measureChange in forced vital capacity (FVC) at 24 weeks
Secondary outcome measuresSafety, change in diffusing capacity for carbon monoxide (DLco)
Overall study start date03/11/2014
Overall study end date12/01/2021

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participantsPlanned Sample Size: 116; UK Sample Size: 116
Total final enrolment104
Participant inclusion criteriaSubjects will be recruited prospectively from rheumatology or interstitial lung disease units at 6 UK centres.

1. A diagnosis of connective tissue disease, based on internationally accepted criteria, in one of the following categories:
1.1. Systemic sclerosis
1.2. Idiopathic interstitial myopathy (including polymyositis/dermatomyositis)
1.3. Mixed connective tissue disease
2. Severe and/or progressive interstitial lung disease associated with the underlying connective tissue disease.
3. Chest HRCT performed within 12 months of randomisation
4. Intention of the caring physician to treat the ILD with intravenous cyclophosphamide (with treatment indications including deteriorating symptoms attributable to ILD, deteriorating lung function tests, worsening gas exchange or extent of ILD at first presentation)and where there is a reasonable expectation that immunosuppressive treatment will stabilize or improve CTD-ILD
5. Written informed consent
Participant exclusion criteria1. Age <18 or >80 years.
2. Previous treatment with rituximab and/or intravenous cyclophosphamide
3. Known hypersensitivity to rituximab or cyclophosphamide or their components
4. Significant (in the opinion of the investigator) other organ co-morbidity including cardiac, hepatic or renal impairment
5, Co-existent obstructive pulmonary disease (e.g. asthma, COPD, emphysema) with pre bronchodilator FEV1/FVC <70%
6, Patients at significant risk for infectious complications following immunosuppression including HIV positive or other immunodeficiency syndromes (including hypogammaglobulineamia)
7. Suspected or proven untreated tuberculosis
8. Viral hepatitis
9. Infection requiring antibiotic treatment in the preceding four weeks
10. Unexplained neurological symptoms (which may be suggestive of progressive mutifocal leukoencephalopathy; PML).
11. Other investigational therapy (participation in research trial) received within 8 weeks of randomisation
12. Immunosuppressive or CTD disease modifying therapy (other than corticosteroids) received within 2 weeks of randomisation
13. Pregnant or breast feeding women, or women of child-bearing potential, not using a reliable contraceptive method for up to 12 months following IMP
14. Unexplained haematuria, or previous bladder carcinoma
15. CT scan > 12 months from randomisation
16. Unable to provide informed written consent
Recruitment start date03/11/2014
Recruitment end date31/05/2020

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Royal Brompton & Harefield NHS Foundation Trust
Sydney Street
London
SW3 6NP
United Kingdom

Sponsor information

Royal Brompton & Harefield NHS trust
Hospital/treatment centre

Royal Brompton Hospital
Sydney Street
London
SW3 6NP
England
United Kingdom

ROR logo "ROR" https://ror.org/02218z997

Funders

Funder type

Government

National Institute for Health Research
Government organisation / National government
Alternative name(s)
National Institute for Health Research, NIHR Research, NIHRresearch, NIHR - National Institute for Health Research, NIHR (The National Institute for Health and Care Research), NIHR
Location
United Kingdom

Results and Publications

Intention to publish date01/11/2022
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 15/06/2017 23/07/2019 Yes No
Results article 11/11/2022 14/11/2022 Yes No
HRA research summary 28/06/2023 No No
Results article 01/02/2024 10/05/2024 Yes No

Editorial Notes

10/05/2024: Publication reference added.
14/11/2022: Publication reference added.
01/06/2022: The intention to publish date has been changed from 01/05/2022 to 01/11/2022.
13/12/2021: The intention to publish date was changed from 30/06/2021 to 01/05/2022.
23/06/2021: The following changes have been made:
1. The overall trial end date has been changed from 31/05/2021 to 12/01/2021 and the plain English summary has been updated to reflect this change.
2. The publication and dissemination plan has been added.
25/05/2020: The following changes have been made:
1. The recruitment end date has been changed from 24/02/2020 to 31/05/2020.
2. The total final enrolment number has been changed from "101" to "104".
25/05/2020: The following changes have been made:
1. The recruitment end date has been changed from 31/05/2020 to 24/02/2020.
2. The total final enrolment number has been changed from "19" to "101".
21/01/2020: The condition has been changed from "Topic: Musculoskeletal disorders, Respiratory disorders; Subtopic: Musculoskeletal (all Subtopics), Respiratory (all Subtopics); Disease: Musculoskeletal, Respiratory" to "Interstitial lung disease in people with connective tissue disease, including systemic sclerosis, idiopathic interstitial myopathy (including polymyositis/dermatomyositis) and mixed connective tissue disease" following a request from the NIHR.
15/01/2020: The following changes have been made:
1. The recruitment end date has been changed from 31/12/2019 to 31/05/2020.
2. The overall trial end date has been changed from 31/12/2020 to 31/05/2021.
15/08/2019: The following changes were made to the trial record:
1. The recruitment end date was changed from 31/08/2018 to 31/12/2019.
2. The overall end date was changed from 31/08/2018 to 31/12/2020.
3. The intention to publish date was added.
4. The plain English summary was updated to reflect these changes.
5. The total final enrolment was added.
6. The scientific contact was changed from Dr Vicky Tsipouri to Veronica Tudor.
23/07/2019: The following changes were made to the trial record:
1. ClinicalTrials.gov number added.
2. Publication reference added.