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COVID-19Phase 2/3NCT04393246

mulTi-Arm Therapeutic Study in Pre-ICu Patients Admitted With Covid-19 - Experimental Drugs and Mechanisms

A Phase 2/3 study testing EDP1815, Dapagliflozin and Ambrisentan in people with COVID-19, run by Cambridge University Hospitals NHS Foundation Trust at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

TACTIC-E is a randomised, parallel arm, open-label platform trial for investigating potential treatments for COVID-19 disease. While SARS-CoV infection evades detection by the immune system in the first 24 hours of infection, it ultimately produces a massive immune system response in the subgroup of people who develop… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
COVID-19
What is being tested?
EDP1815, Dapagliflozin and Ambrisentan
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
454 participants
Where
1 siteUnited Kingdom
Study dates
3 Jul 2020to 8 Jun 2022
Phase
Phase 2/3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

General Inclusion Criteria:

  • Be aged 18 and over
  • Have clinical picture strongly suggestive of COVID-19-related disease (with/without positive COVID-19 test) AND
  • Risk count (as defined below) >3 OR
  • Risk count ≥3 if it includes "Radiographic severity score >3"
  • Be hospitalized or eligible for hospitalization on clinical grounds
  • Be considered an appropriate subject for intervention with immunomodulatory or other disease modifying agents in the opinion of the investigator
  • Is able to swallow capsules/tablets

General Exclusion Criteria:

  • Inability to supply direct informed consent from patient or from Next of Kin or Independent Healthcare Provider on behalf of patient
  • Invasive mechanical ventilation at time of screening
  • Contraindications to study drugs, including hypersensitivity to the active substances or any of the excipients
  • Currently on any of the study investigational medicinal products
  • Concurrent participation in an interventional clinical trial (observational studies allowed)
  • Patient moribund at presentation or screening
  • Pregnancy at screening
  • Unwilling to stop breastfeeding during treatment period
  • Known severe hepatic impairment (with or without cirrhosis)
  • Requiring dialysis Cockcroft Gault estimated creatinine clearance < 30 ml /min/1.73m2 at screening
  • Inability to swallow at screening visit
  • Any medical history or clinically relevant abnormality that is deemed by the principal investigator and/or medical monitor to make the patient ineligible for inclusion because of a safety concern.

EDP1815-Specific Exclusion Criteria:

  • Patient is taking a systemic immunosuppressive agent such as, but not limited to, oral steroids, methotrexate, azathioprine, ciclosporin or tacrolimus, unless these are given as part of COVID standard of care treatment.
  • Patient has known primary or secondary B cell disorder

Dapagliflozin- and Ambrisentan-Specific Exclusion Criteria:

  • Type 1 diabetes
  • Known idiopathic pulmonary fibrosis
  • Previous hospital admission with ketoacidosis
  • Patients concurrently on other SGLT2 inhibitors
  • History of symptomatic heart failure within 3 months of admission
  • Sustained blood pressure below 100/70 mmHg at admission
  • Metabolic acidosis defined as pH< 7.25 AND ketones > 3.0 mmol/L
  • Alanine transaminase and/or aspartate transaminase (ALT and/or AST) > 3 times the upper limit of normal (only one needs to be measured)

Risk Count

Patients will be given a Risk Count equal to the cumulative points received for the following criteria (no = 0 points, yes = 1 point):

Male gender, Age > 40 years, Non-white ethnicity, Diabetes, Hypertension, Neutrophils > 8.0x10^9/L, CRP > 40mg/L, Radiographic severity score >3

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Cambridge University Hospitals NHS Foundation Trust

    Cambridge, Cambridgeshire, CB2 0QQ

Other trials in United Kingdom

About this study

Official title: mulTi-Arm Therapeutic Study in Pre-ICu Patients Admitted With Covid-19 - Experimental Drugs and Mechanisms (TACTIC-E)

TACTIC-E is a randomised, parallel arm, open-label platform trial for investigating potential treatments for COVID-19 disease. While SARS-CoV infection evades detection by the immune system in the first 24 hours of infection, it ultimately produces a massive immune system response in the subgroup of people who develop severe complications. Most tissue damage following infection with COVID-19 appears to be due to a later, exaggerated, host immune response (Gralinski and Baric 2015). This leads to lung and sometimes multi-organ damage.

Most people who develop these severe complications still have virus present in their respiratory tract at the time-point when the disease starts to evolve. Immune modulation in the presence of active infection has potential to cause more harm than benefit. Safety considerations when studying immune modulation strategies are paramount. This study will assess the efficacy of a novel immunomodulatory agent and a novel combination of approved agents which may protect the patient against end-organ damage and modulate the pulmonary vascular response. This study will compare the novel therapeutic agent EDP1815 and a novel combination of the approved agents dapagliflozin and ambrisentan against Standard of Care. A trial arm (UNI911) with the IMP Niclosamide was added to the protocol with one patient recruited into this arm. Following an AESI and after discussions between the funder and the Sponsor the arm was stopped.

Read the detailed description

TACTIC-E will assess the efficacy of the novel immunomodulatory agent EDP1815 and a combination of the approved cardiovascular drugs dapagliflozin and ambrisentan as potential treatments for COVID-19 disease against Standard of Care alone. These agents target the dysregulated immune response that drive the severe lung, and other organ, damage frequently seen during COVID-19 infection, with an aim to promote a positive vascular response to reduce end-organ damage.

Treatment with EDP1815 will be for up to 7 days, with the option of extension to 14 days at the discretion of the PI or their delegate, if the patient is felt to be clinically responding to treatment, is tolerating treatment, and is judged to be likely to benefit from a longer treatment course. Treatment with combination dapagliflozin and ambrisentan will be for up to 14 days. Patients will be randomised in a 1:1:1 ratio across treatments.

TACTIC-E will use a platform design with interim analysis to make efficient decisions about efficacy and futility (e.g. lack of efficacy and risk of harm) of the trial treatments. This enables the trial to stop recruiting to arms early where a clear efficacy decision can be made. It also allows for the addition of further arms.

Conditions
COVID-19
Being tested
EDP1815, Dapagliflozin, Ambrisentan, Standard of care
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EDP1815Drug

    EDP1815 is an orally administered pharmaceutical preparation of a single strain of Prevotella histicola isolated from the duodenum of a human donor. EDP1815 is currently in phase 2 clinical development and has European and US approval to initiate a multinational psoriasis study.

  • DapagliflozinDrug

    Also called Forxiga

    Dapagliflozin is a sodium-glucose co-transporter 2 (SGLT-2) inhibitor. Dapagliflozin is licensed for use in the UK for treatment of Type II diabetes. Since this trial is evaluating Dapagliflozin in an unlicensed indication, it is being carried out under a Clinical Trial Authorisation (CTA)

  • AmbrisentanDrug

    Also called Letairis, Volibris, Pulmonext

    Ambrisentan is an endothelin receptor antagonist, and is selective for the type A endothelin receptor (ETA). Ambrisentan was approved by the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) and indicated for the treatment of pulmonary arterial hypertension.

  • Standard of careOther

    Regular standard of care for COVID-19 patients

Study groups in NCT04393246
Study groupRoleWhat they receive
Standard of careActive comparatorStandard of care
Receives: Other: Standard of care
EDP1815Experimental1.6 x 10^11 cells dosage-in-capsule orally twice per day for up to 7 days (with the option to extend up to 14 days), on top of standard of care
Receives: Drug: EDP1815
Dapagliflozin and AmbrisentanExperimentalAmbrisentan 5mg tablet orally once per day for up to a maximum of 14 days and Dapagliflozin 10mg tablet orally once per day for up to a maximum of 14 days, on top of standard of care
Receives: Drug: Dapagliflozin; Drug: Ambrisentan

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Time to incidence of the composite endpoint of: Death, Mechanical ventilation, ECMO, Cardiovascular organ support, or Renal failure

    Number of days taken for occurrence of one of the following events: 1. Death 2. Mechanical ventilation 3. Extracorporeal membrane oxygenation (ECMO) 4. Cardiovascular organ support (balloon pump or inotropes/vassopressors) 5. Renal failure (estimated creatinine clearance (by Cockcroft-Gault formula) <15 ml /min/1.73m^2), haemofiltration or dialysis

    Measured: up to Day 14

Secondary outcomes (15)
  1. Change in biomarkers thought to be associated with progression of COVID-19 compared to baseline: IL-6

    Change in patient blood levels of IL-6 compared to baseline, measured in pg/mL

    Measured: 14 days

  2. Change in biomarkers thought to be associated with progression of COVID-19 compared to baseline: ferritin

    Change in patient blood levels of ferritin compared to baseline, measured in ng/mL

    Measured: 14 days

  3. Change in biomarkers thought to be associated with progression of COVID-19 compared to baseline: c-reactive protein (CRP)

    Change in patient blood levels of CRP compared to baseline, measured in mg/L

    Measured: 14 days

  4. Change in biomarkers thought to be associated with progression of COVID-19 compared to baseline: D-dimer

    Change in patient blood levels of D-dimer compared to baseline, measured in ng/mL

    Measured: 14 days

  5. Change in biomarkers thought to be associated with progression of COVID-19 compared to baseline: neutrophil/lymphocyte ratio

    Change in patient blood levels of neutrophil/lymphocyte ratio compared to baseline

    Measured: 14 days

  6. Change in biomarkers thought to be associated with progression of COVID-19 compared to baseline: lactate dehydrogenase (LDH)

    Change in patient blood levels of lactate dehydrogenase (LDH) compared to baseline, measured in U/L

    Measured: 14 days

  7. Change in clinical status as assessed on 7-point ordinal scale compared to baseline

    The clinical status of the patients is assessed using 7-point ordinal scale as follows: 1 = Death, 2 = Mechanical ventilation, 3 = Non-invasive or high flow oxygen, 4 = Low flow oxygen, 5 = Hospitalised - no oxygen, 6 = Discharged - normal activities not resumed, 7 = Discharged - normal activities resumed

    Measured: 14 days

  8. Time to each of the individual endpoints of the composite primary outcome measure

    Number of days taken for occurrence of each of the following events: 1. Death 2. Mechanical ventilation 3. Extracorporeal membrane oxygenation (ECMO) 4. Cardiovascular organ support (balloon pump or inotropes/vassopressors) 5. Renal failure (estimated creatinine clearance (by Cockcroft-Gault formula) <15 ml /min/1.73m^2), haemofiltration or dialysis

    Measured: 14 days

  9. Proportion of patients with adverse events of special interest in each treatment arm

    The proportion of patients in each treatment arm that experience adverse events of special interest, defined as: Diabetic ketoacidosis in patients on Ambrisentan \& Dapagliflozin, New peripheral oedema in patients on Ambrisentan \& Dapagliflozin arm

    Measured: 14 days

  10. Time to Sp02 >94% on room air

    The time taken to achieve blood oxygen saturation levels above 94% in patients on room air, measured in hours/days (chronically hypoxic individuals will be excluded from this analysis)

    Measured: 14 days

  11. Time to first negative SARS-CoV2 PCR

    The amount of time between a patient's first positive SARS-CoV2 PCR test and a patient's first negative SARS-CoV2 PCR test, measured in days

    Measured: 14 days

  12. Duration of oxygen therapy

    The duration of oxygen therapy given to a patient, measured in days

    Measured: 14 days

  13. Duration of hospitalisation

    The duration of hospitalisation of a patient, measured in days

    Measured: 14 days

  14. All-cause mortality at day 28

    The number of deaths recorded at 28 days irrespective of the cause

    Measured: 28 days

  15. Time to clinical improvement

    The time to clinical improvement for a patient, defined as: >2 point improvement from Day 1 on the 7-point ordinal scale, measured in days

    Measured: 14 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 May 2020
  2. Study start3 Jul 2020
  3. Primary completion1 Jun 2022
  4. Study completion8 Jun 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
TACTIC-E is a randomised, parallel arm, open-label platform trial
Masking
None (open label)
Enrolment
454 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04393246
Sponsor's protocol ID
TACTIC-E
Status last verified
Jul 2023
First submitted
16 May 2020
Last updated
28 Jul 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Gralinski LE, Baric RS. Molecular pathology of emerging coronavirus infections. J Pathol. 2015 Jan;235(2):185-95. doi: 10.1002/path.4454.

    PubMed 25270030
  • Kreuzberger N, Hirsch C, Chai KL, Tomlinson E, Khosravi Z, Popp M, Neidhardt M, Piechotta V, Salomon S, Valk SJ, Monsef I, Schmaderer C, Wood EM, So-Osman C, Roberts DJ, McQuilten Z, Estcourt LJ, Skoetz N. SARS-CoV-2-neutralising monoclonal antibodies for treatment of COVID-19. Cochrane Database Syst Rev. 2021 Sep 2;9(9):CD013825. doi: 10.1002/14651858.CD013825.pub2.

    PubMed 34473343
  • Lu IN, Kulkarni S, Fisk M, Kostapanos M, Banham-Hall E, Kadyan S, Bond S, Norton S, Cope A, Galloway J, Hall F, Jayne D, Wilkinson IB, Cheriyan J. muLTi-Arm Therapeutic study in pre-ICu patients admitted with Covid-19-Experimental drugs and mechanisms (TACTIC-E): A structured summary of a study protocol for a randomized controlled trial. Trials. 2020 Jul 31;21(1):690. doi: 10.1186/s13063-020-04618-2.

    PubMed 32736592

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing EDP1815, Dapagliflozin and Ambrisentan in people with COVID-19, run by Cambridge University Hospitals NHS Foundation Trust at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time to incidence of the composite endpoint of: Death, Mechanical ventilation, ECMO, Cardiovascular organ support, or Renal failure (time frame: up to Day 14). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04393246, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jul 2023.

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