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Chest PainNCT03400579

A Study of the Feasibility of Prehospital Remote Ischemic Conditioning

A study testing autoRIC® device in people with Chest Pain, run by University of North Carolina, Chapel Hill at 1 site in United States.

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

Prospective, single center, single arm pilot study evaluating the feasibility of delivering remote ischemic conditioning (RIC) by emergency medical services (EMS) in the prehospital setting. Eligible patients will have chest pain or anginal equivalent symptoms and require ground ambulance transport to the hospital. Read more about this study

Who is it for?
Ages 18 to 100 years
Conditions the study is for
Chest Pain
What is being tested?
autoRIC® device
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
10 Jul 2018to 1 Oct 2019
Phase
Interventional
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 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Requiring 9-1-1 response to scene
  • At least 18 years of age
  • Experiencing non-traumatic chest pain or anginal equivalent symptom
  • Not meeting EMS criteria for a suspected STEMI based on prehospital ECG
  • Systolic blood pressure (SBP) between 100-180 mgm Hg
  • Designated for ambulance transport to University of North Carolina Medical Center (Chapel Hill, NC)
  • Capable of providing informed consent

Who cannot join

  • Unconscious or otherwise in critical condition
  • Lacking capacity to consent to the study
  • Non-English speaking
  • Pre-existing condition precluding blood pressure check or use of the autoRIC® at the discretion of the provider or listed here:
  • Paresis of upper limb
  • Pre-existing traumatic injury to arm
Show all 11Show fewer
  • Presence of an arteriovenous shunt for dialysis
  • Prior mastectomy
  • Existing peripheral inserted central catheter line
  • Arm edema or other indication of upper extremity thrombosis
  • Serial ECG evidence of evolving STEMI

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of North Carolina at Chapel Hill

    Chapel Hill, North Carolina, 27599

Other trials in United States

About this study

Official title: A Pilot Study of the Feasibility of Prehospital Delivery of Remote Ischemic Conditioning by Emergency Medical Services in Chest Pain Patients

Prospective, single center, single arm pilot study evaluating the feasibility of delivering remote ischemic conditioning (RIC) by emergency medical services (EMS) in the prehospital setting. Eligible patients will have chest pain or anginal equivalent symptoms and require ground ambulance transport to the hospital. All subjects will undergo the standard RIC procedure (i.e., up to four cycles of alternating 5-min inflation and 5-min deflation) with the autoRIC® device (CellAegis Devices, Inc., Toronto, Ontario). The primary objective is to evaluate the number of cycles of RIC completed in patients having the procedure initiated by EMS in the prehospital setting.

Read the detailed description

This single-arm, open-label pilot study will evaluate the feasibility of delivering remote ischemic conditioning (RIC) by emergency medical services (EMS) in the prehospital setting. Eligible patients will be at least 18 years of age, and require ground ambulance transport to the hospital. Patients suspected of ST-elevation myocardial infarction (STEMI) based on the prehospital electrocardiogram and thus requiring urgent intervention in the cardiac catheterization lab will be excluded.

All subjects will undergo the standard RIC procedure (i.e., up to four cycles of alternating 5-min inflation and 5-min deflation) with the autoRIC® device (CellAegis Devices, Inc.). The automated procedure will be initiated by paramedics during ambulance transport, and the RIC cycles will continue through emergency department (ED) arrival and stay for a total of 40 minutes.

The primary objective of this pilot study is to examine the duration of RIC administered in patients having the procedure initiated in the prehospital setting. The investigators hypothesize four cycles of RIC will be completed in at least 80% of patients having the procedure initiated. Secondary objectives are to assess enrollment rates and protocol implementation; paramedic acceptability of protocol; and patient tolerability of RIC.

Conditions
Chest Pain
Being tested
autoRIC® device
Keywords
Emergency Medical Services
Medical subject headings
Chest Pain

What participants receive

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

  • autoRIC® deviceDevice

    The autoRIC® automatically delivers four RIC cycles of five minutes of pressure at 200 mm Hg followed by five minutes of no pressure for a total 40-min treatment period

Study groups in NCT03400579
Study groupRoleWhat they receive
Remote Ischemic ConditioningExperimentalRIC procedure (i.e., four cycles of alternating 5-min inflation and 5-min deflation) administered by the autoRIC® device
Receives: Device: autoRIC® device

What is being measured

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

  1. Percent of Subjects Receiving 4 Cycles of RIC Without Interruption

    A completed RIC cycle without interruption is defined as 5 minutes inflation followed by 5 minutes deflation for a total of 10 minutes.

    Measured: up to 40 minutes, following initiation of RIC

Secondary outcomes (6)
  1. Percent of Patients Screened Who Are Eligible for Recruitment

    Eligibility among patients screened and specifying inclusion and exclusion criteria met or not met.

    Measured: through EMS transport, an average of 20 minutes

  2. Percent of Patients Recruited Who Agreed to Participate

    Participation among patients who are screened and recruited.

    Measured: through EMS transport, an average of 20 minutes

  3. Timing (in Minutes) of Study Procedures

    Times will be reported for on-scene arrival, patient transport, screening, recruitment, and RIC initiation to assess efficiency with which the study protocol was implemented. Screening, recruitment and RIC initiation times are overlapping with transport time.

    Measured: through EMS response and transport, an average of 30 minutes

  4. Themes on Paramedic Acceptability of the Study Protocol

    Qualitative themes related to implementation of the study protocol will be derived from semi-structured interviews with study paramedics.

    Measured: up to 15 minutes from screening

  5. Percent of Participants Experiencing Anticipated Adverse Events Including RIC Discontinuation Due to Discomfort

    Anticipated adverse events related to RIC including minor arm discomfort, temporary discoloration of the arm or hand, and minor skin bruising or abrasions on the upper arm will be collected via in-person and telephone evaluation.

    Measured: up to 48 hours from end of RIC

  6. Themes on Patient Experiences While Undergoing RIC

    Qualitative themes related to the RIC procedure will be derived from semi-structured interviews with subjects.

    Measured: up to 15 minutes

Timeline

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

  1. First posted17 Jan 2018
  2. Study start10 Jul 2018
  3. Primary completion30 Sep 2019
  4. Study completion1 Oct 2019

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 N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Model description
Prospective, single center, single arm pilot study evaluating the feasibility of delivering remote ischemic conditioning by emergency medical services during ground ambulance transport of patients experiencing chest pain or anginal equivalent symptom
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03400579
Sponsor's protocol ID
17-0287
Other IDs
UL1TR001111
Status last verified
Nov 2019
First submitted
8 Jan 2018
Last updated
1 Sep 2020
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No: The researchers have no plans to make individual participant data available. Due to this study's small size and single site, individual level data will not be shared to protect the privacy of subjects and maintain the confidentiality of data. Aggregated data and results on primary and secondary outcomes will be reported on this site and published in the scientific literature.

Publications

  • Patel MD, Platts-Mills TF, Grover JM, Thomas SM, Rossi JS. Feasibility of prehospital delivery of remote ischemic conditioning by emergency medical services in chest pain patients: protocol for a pilot study. Pilot Feasibility Stud. 2019 Mar 13;5:42. doi: 10.1186/s40814-019-0431-8. eCollection 2019.

    PubMed 30911405

Questions about this trial

What is this clinical trial studying?

A study testing autoRIC® device in people with Chest Pain, run by University of North Carolina, Chapel Hill 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 7 inclusion and 11 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: finished, as of the sponsor's last update on 1 Sep 2020. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Sep 2020). 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?

Percent of Subjects Receiving 4 Cycles of RIC Without Interruption (time frame: up to 40 minutes, following initiation of RIC). 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 NCT03400579, which also lists 1 linked publication.

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 1 Sep 2020.

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