Using the blood pressure medication losartan to improve outcomes for patients with SARS CoV-2

ISRCTN ISRCTN48734830
DOI https://doi.org/10.1186/ISRCTN48734830
EudraCT/CTIS number 2020-002040-22
Submission date
22/06/2020
Registration date
10/07/2020
Last edited
13/12/2021
Recruitment status
Stopped
Overall study status
Stopped
Condition category
Infections and Infestations
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
There is an ongoing pandemic of severe respiratory disease (Covid-19) caused by a novel Coronavirus (SARS-CoV-2) that was first detected in China in December, 2019. The first cases were observed in Sweden in January, 2020, and there is currently ongoing spread in all Swedish regions. Unfortunately, there is currently no available specific treatment for Covid-19. Several investigators have suggested that treatment with angiotensin-converting enzyme inhibitors (ACEi) or angiotensin receptor blockers (ARB) might lead to an improvement in disease outcomes for Covid-19 patients.

Who can participate?
Patients treated in a hospital in Sweden for confirmed Covid-19

What does the study involve?
Participating patients will be randomized to either receive a blood pressure-lowering drug (losartan) in addition to standard treatment, or standard treatment alone. Patients will be followed up for 28 days

What are the possible benefits and risks of participating?
The risks with losartan treatment are well-known and involve having too-low blood pressure, kidney problems and salt balance problems. All participating patients will be monitored for these problems and they will be dealt with if they occur. Possible benefits may involve a less severe course of the Covid-19 disease.

Where is the study run from?
The hospital Södersjukhuset in Stockholm, Sweden

When is the study starting and how long is it expected to run for?
April 2020 to January 2022

Who is funding the study?
Swedish Research Council

Who is the main contact?
Dr Anders Hedman (scientific), anders.hedman@sll.se
Dr Gustaf Edgran (public), gustaf.edgren@ki.se

Contact information

Dr Gustaf Edgren
Public

Sjukhusbacken 10
Stockholm
11867
Sweden

ORCiD logoORCID ID 0000-0002-2198-4745
Phone +46 86164782
Email gustaf.edgren@ki.se
Dr Anders Hedman
Scientific

VO Kardiologi
Södersjukhuset AB
Stockholm
118 83
Sweden

Phone +46-8-616 100 00
Email anders.hedman@sll.se

Study information

Study designOpen-label pragmatic phase IV randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleRAAS blockagE in SARS COV-2 Critically ill patiEnts– a Randomized controlled trial
Study acronymRECOVER
Study hypothesisThe study will test the hypothesis that addition of losartan to standard treatment will decrease risk of the occurrence of the composite endpoint of admission to intensive care unit, or death
Ethics approval(s)Approved 18/05/2020, Swedish Ethical Review Authority (Etikprövningsmyndigheten, Box 2110, 750 02, Uppsala, Sweden; +46 10-475 08 00; registrator@etikprovning.se), ref: 2020-02185
ConditionCOVID-19 (SARS-CoV-2 infection)
InterventionPatients in the active arm of the trial will be receiving open-label Losartan in a dosage titrated with regards to blood pressure and renal function up to a maximum of 100 mg once daily. Active treatment with Losartan will continue until death or discharge from hospital, or for a maximum of 28 days post-randomization.

The starting dose will be 25 mg for patients with a systolic blood pressure of 120 - 130 mmHg at randomization and 50 mg for patients with a systolic blood pressure of > 140 mmHg.

Patients randomized to the control group will receive standard treatment. There will be no placebo intervention. If blood pressure medication is warranted according to existing guidelines a non-ACEi or ARB medication should be chosen.

The randomization will be performed using an online randomization system, in a 1:1 ratio, with a pre-generated random sequence in blocks of random size from 2 to 6.
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase IV
Drug / device / biological / vaccine name(s)Losartan
Primary outcome measureTime to first occurrence of a composite endpoint (admission to intensive care unit, or death), within 28 days of randomization
Secondary outcome measuresMeasured using case report form:
1. All-cause mortality at day 28 from randomization
2. Occurrence of ICU admission during hospital stay
3. Need for and duration of invasive mechanical ventilation
4. Peak level and area under the curve during hospitalization for National Early Warning score 2 (NEWS2) score
5. Peak level and area under the curve during hospitalization for CRP score
Overall study start date21/04/2020
Overall study end date31/01/2022
Reason abandoned (if study stopped)Participant recruitment issue

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants750
Total final enrolment302
Participant inclusion criteria1. Positive PCR laboratory test for SARS-CoV-2
2. Age > 18 years
3. Admitted for in-hospital care no more than 48 hours earlier
4. GCS ≥ 14
Participant exclusion criteria1. Admitted to ICU prior to randomization.
2. Current treatment with blood pressure lowering agent, affecting the RAAS system (i.e. Angiotensin Converting Enzyme inhibitor (ACEi), Angiotensin Receptor Blocker (ARB), Aldosteron antagonist or Renin inhibitor)
3. Patients with heart condition eg. heart failure with reduced ejection fraction, EF < 40%, who has an evidence based indication for ACE inhibitors or Angiotensin receptor blockers
4. Prior serious adverse reaction to an ARB or ACEi
5. Systolic blood pressure below 120 mmHg or symptomatic hypotension. Blood pressure will be taken in supine position after 5 minutes rest with manual or automatic blood pressure manometers
6. Estimated Glomerular Filtration Rate (eGFR) of < 50ml/min/1.73 m²
7. Potassium > 5 mEq/l
8. Women of childbearing age. Pregnant or breastfeeding. Women that are postmenopausal can be included. Women and childbearing age can be included after a negative pregnancy test
9. Known renal artery stenosis
10. Severe hepatic failure (i.e. ALAT/ASAT > 5x normal upper limit)
11. Volume depletion, chock or new onset of acute kidney injury that, in the opinion of the investigator, would preclude administration of ARB/ACE-inhibitors
12. Any condition or therapy which would make the participant unsuitable for the study, according to the investigators opinion
13. Inability to provide informed consent
14. Moribund or palliative patients deemed unlike to survive hospital stay or who cannot make an informed decision for participations (e.g. non-adults or patients with dementia)
Recruitment start date03/08/2020
Recruitment end date31/12/2021

Locations

Countries of recruitment

  • Sweden

Study participating centre

Södersjukhuset
Sjukhusbacken 10
Stockholm
11867
Sweden

Sponsor information

Stockholm South General Hospital
Hospital/treatment centre

VO Kardiologi
Sjukhusbacken 10
Stockholm
11867
Sweden

Phone +46 86161000
Email info@sodersjukhuset.se
Website https://www.sodersjukhuset.se/
ROR logo "ROR" https://ror.org/00ncfk576

Funders

Funder type

Government

Vetenskapsrådet
Government organisation / National government
Alternative name(s)
Swedish Research Council, VR
Location
Sweden

Results and Publications

Intention to publish date01/05/2022
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in peer-reviewed journal.
IPD sharing planData will likely not be made publicly available due to data privacy issues

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file version v5 22/06/2020 07/08/2020 No No

Additional files

ISRCTN48734830_Protocol_v5_22Jun2020.pdf
uploaded 07/08/2020

Editorial Notes

13/12/2021: The study has been halted at the first interim analysis due to futility on account of a lower than expected event rate. Total final enrolment and Individual participant data (IPD) sharing statement added.
16/02/2021: The following changes were made to the trial record:
1. The recruitment end date was changed from 01/02/2021 to 31/12/2021.
2. The overall trial end date was changed from 28/02/2021 to 31/01/2022.
3. The intention to publish date was changed from 01/05/2021 to 01/05/2022.
07/08/2020: Uploaded protocol (not peer reviewed) Version 5 22 June 2020.
10/07/2020: Internal review.
09/07/2020: Trial’s existence confirmed by Swedish Medical Products Agency.