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Heart FailurePhase 1/2NCT03784963

Efficacy of Omega-3 Fatty Acid Therapy in Preventing Gastrointestinal Bleeding in Patients With CF-LVAD

A Phase 1/2 study testing Omega 3 fatty acids in people with Heart Failure and Gastrointestinal Bleeding, run by University of Chicago at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study evaluates the efficacy of high-dose fish oil in decreasing rates of gastrointestinal bleeding in patients with continuous-flow left ventricular assist devices. Half of the patients without history of bleeding will receive fish oil while the other half will not. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Failure, Gastrointestinal Bleeding
What is being tested?
Omega 3 fatty acids
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
35 participants
Where
1 siteUnited States
Study dates
23 Jan 2019to 15 Jul 2020
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Subject has signed consent
  • Age > 18 years
  • Subjects with a CF-LVAD or are scheduled to receive a CF-LVAD implant

Who cannot join

  • Psychiatric disorder or disease, irreversible cognitive dysfunction or psychosocial issues that might impair compliance with the study.
  • Patients already taking fish oil.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Chicago Medicine

    Chicago, Illinois, 60637

Other trials in United States

About this study

Official title: Open-Label Prospective Randomized Control Trial to Investigate the Efficacy of Omega-3 Fatty Acid Therapy in Preventing Gastrointestinal Bleeding in Patients With Continuous-Flow Left Ventricular Assist Device

This study evaluates the efficacy of high-dose fish oil in decreasing rates of gastrointestinal bleeding in patients with continuous-flow left ventricular assist devices. Half of the patients without history of bleeding will receive fish oil while the other half will not. Half of the patients with history of bleeding will receive fish oil while the other half will not. Markers of angiogenesis and inflammation, as well as changes in the microbiome will be assessed in each group.

Read the detailed description

A potential mechanism of bleeding in patients with continuous-flow left ventricular assist devices (CF-LVAD) is dysfunctional angiogenesis. Angiogenesis is a complicated process controlled by several markers. Previous studies have shown that elevated Angiopoietin-2 and TNF-alpha are associated with bleeding events in CF-LVAD patients.

Fish oil has anti-inflammatory and potentially anti-angiogenic properties. A retrospective study of CF-LVAD patients on high-dose fish oil showed a marked decrease in gastrointestinal bleeding rates in these patients. Additionally, these patients had lower levels of circulating Angiopoietin-2. Fish oil is known to have an effect on the microbiome, and the aforementioned effects may be seen in changes of the microbiota.

Being tested
Omega 3 fatty acids, Placebo
Keywords
Angiogenesis, Inflammation, Microbiome
Medical subject headings
Heart Failure, Gastrointestinal Hemorrhage, Inflammation

What participants receive

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

  • Omega 3 fatty acidsDrug

    Patients will receive 4 grams fish oil once daily

  • PlaceboOther

    Standard of care

Study groups in NCT03784963
Study groupRoleWhat they receive
Primary Prevention InterventionExperimentalIn patients with CF-LVAD who have not had a gastrointestinal bleed, patients randomized to intervention will receive 4 grams of Nature Made Ultra Omega-3 Fish Oil once daily for 1 year along with standard of care.
Receives: Drug: Omega 3 fatty acids
Primary Prevention Non-InterventionPlacebo comparatorIn patients with CF-LVAD who have not had a gastrointestinal bleed, patients randomized to placebo will receive no fish oil and only standard of care.
Receives: Other: Placebo
Secondary Prevention InterventionExperimentalIn patients with CF-LVAD who have had a gastrointestinal bleed, patients randomized to intervention will receive 4 grams of Nature Made Ultra Omega-3 Fish Oil once daily for 1 year along with standard of care.
Receives: Drug: Omega 3 fatty acids
Secondary Prevention Non-InterventionPlacebo comparatorIn patients with CF-LVAD who have had a gastrointestinal bleed, patients randomized to placebo will receive no fish oil and only standard of care.
Receives: Other: Placebo

What is being measured

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

  1. Change in Markers of Angiogenesis - Angiopoietin 1/2 and VEGF

    Markers of angiogenesis and inflammation will be measured on customized Luminex assay panels. These will include Angiopoietin-1 (ng/mL), Angiopoietin-2 (ng/mL), and VEGF (ng/mL).

    Measured: Markers will be measured at baseline at randomization, and at 3 months, 6 months, and 12 months after randomization.

  2. Change in Markers of Angiogenesis - TNF-alpha

    Markers of angiogenesis and inflammation will be measured on customized Luminex assay panels. These will include TNF-alpha (pg/mL).

    Measured: Markers will be measured at baseline at randomization, and at 3 months, 6 months, and 12 months after randomization.

  3. Change in Markers of Inflammation - C-Reactive Protein

    Markers of angiogenesis and inflammation will be measured on customized Luminex assay panels. These will include c-reactive protein (mg/dL).

    Measured: Markers will be measured at baseline at randomization, and at 3 months, 6 months, and 12 months after randomization.

Secondary outcomes (2)
  1. Rates of Gastrointestinal Bleeding

    Rates of Gastrointestinal Bleeding will be assessed.

    Measured: Rates of bleeding will be measured at 3 months, 6 months, and 12 months after randomization.

  2. Changes in the Microbiome

    The microbiome will be assessed using rectal swabs. The swabs will be analyzed to determine the bacterial species present at each time point.

    Measured: The microbiome will be assessed at baseline at randomization, and at 3 months, 6 months, and 12 months after randomization.

Timeline

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

  1. First posted24 Dec 2018
  2. Study start23 Jan 2019
  3. Primary completion15 Jul 2020
  4. Study completion15 Jul 2020

Why it stopped: Low enrollment

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 1/2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03784963
Sponsor's protocol ID
IRB18-0576
Status last verified
Jun 2021
First submitted
3 Dec 2018
Last updated
13 Jul 2021
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Omega 3 fatty acids in people with Heart Failure and Gastrointestinal Bleeding, run by University of Chicago at 1 site in United States.

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

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. 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: stopped early, as of the sponsor's last update on 13 Jul 2021. 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 States. 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. Some participants in this study may receive a placebo. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Jul 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change in Markers of Angiogenesis - Angiopoietin 1/2 and VEGF (time frame: Markers will be measured at baseline at randomization, and at 3 months, 6 months, and 12 months after randomization.). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 13 Jul 2021.

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