Cardiac ArrestNCT01325870
Hemodynamic Effects of Standard Cardiopulmonary Resuscitation (CPR), Active Compression Decompression CPR With an Inspiratory Impedance Device, and Standard CPR With an Intrathoracic Pressure Regulator During Out-of-hospital Cardiac Arrest
A study testing ACD-CPR, ITPR and S-CPR in people with Cardiac Arrest and Sudden Cardiac Death, run by Advanced Circulatory Systems at 1 site in United States.
Trial summary
More than 300,000 Americans experience out-of-hospital cardiac arrest annually, with overall survival rates averaging less than 5%. Low survival rates persist, in part, because manual chest compressions and ventilation, termed standard cardiopulmonary resuscitation (S-CPR), is an inherently inefficient process… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Cardiac Arrest, Sudden Cardiac Death
- What is being tested?
- ACD-CPR, ITPR and S-CPR
- Type of treatment
- Medical device, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 48 participants
- Where
- 1 siteUnited States
- Study dates
- Mar 2011to Dec 2012
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Initial Inclusion Criteria:
- Subject is initially presumed or known to be 18 years of age or older;
- Subject presents with presumed non-traumatic, out-of-hospital cardiac arrest AND is a candidate for resuscitation attempt. [NOTE: the cardiac arrest may be witnessed OR unwitnessed];
- Subject has a secured cuffed advanced airway [e.g., endotracheal tube, Combitube, King airway].
Final Inclusion Criteria:
- Subject in whom femoral arterial access was successfully established;
- Subject remained in cardiac arrest (undergoing CPR) at the time of hemodynamic data acquisition;
- Subject in whom at least 5 minutes of continuous hemodynamic data were able to be collected, OR if ROSC occurs before 5 minutes, at least 2 minutes of hemodynamic data were able to be collected.
Initial Exclusion Criteria:
- Subject has known pre-existing DNR orders in place prior to this cardiac arrest;
- Subject has signs of obvious clinical death or conditions that preclude the use of CPR;
- Subject's family or legal guardians request that the subject not be entered in the study at the time of arrest;
- Subject has recent sternotomy, with wound not appearing completely healed (if date of sternotomy is unknown) or less than six months (if date of sternotomy is known);
- Subject has a stoma, tracheotomy, or tracheostomy prior to arrest;
- Subject is known or suspected to be pregnant;
- Subject is known/suspected to be a prisoner.
Final Exclusion Criteria:
- Subject in whom < 2 minutes of hemodynamic data were acquired while receiving CPR;
- Subject in whom an arterial pressure catheter was not placed or arterial pressure was not able to be successfully monitored;
- Subject is subsequently found to have had a traumatic arrest;
- Subject was in asystole at time of initial arrest AND remained in asystole during resuscitation effort AND arrest was unwitnessed or unknown if witnessed.
Trial locations and contacts
1 site in 1 country.
United States1 site
Michigan State University- Kalamazoo Center for Medical Studies
Kalamazoo, Michigan, 49008
About this study
Official title: Comparison of Standard Cardiopulmonary Resuscitation Alone Versus Active Compression Decompression Cardiopulmonary Resuscitation Plus an Impedance Threshold Device Versus Standard Cardiopulmonary Resuscitation Plus an Intrathoracic Pressure Regulator on Arterial Blood Pressures During Out-of-Hospital Cardiac Arrest
More than 300,000 Americans experience out-of-hospital cardiac arrest annually, with overall survival rates averaging less than 5%. Low survival rates persist, in part, because manual chest compressions and ventilation, termed standard cardiopulmonary resuscitation (S-CPR), is an inherently inefficient process, providing less than 25% of normal blood flow to the heart and the brain. Hemodynamics are often compromised further by poor S-CPR techniques, especially inadequate chest compression and incomplete chest recoil. Active Compression Decompression CPR (ACD-CPR) is performed with a hand-held device that is attached to the patient's chest, and also includes a handle containing a metronome and force gauge to guide proper compression rate, depth and complete chest wall recoil. The impedance threshold device (ITD) is designed for rapid connection to an airway adjunct (e.g. facemask or endotracheal tube) and allows for positive pressure ventilation, while also impeding passive inspiratory gas exchange during chest wall decompression. Prior studies have shown that the combination of ACD-CPR + ITD enhances refilling of the heart after each compression by augmenting negative intrathoracic pressure during the decompression phase of CPR, resulting in improved cardiac and cerebral perfusion. The intrathoracic pressure regulator (ITPR) is a next generation inspiratory impedance therapy. The ITPR uses a regulated external vacuum source to lower the negative intrathoracic pressure and is therefore less dependent on the quality of CPR (e.g., completeness of chest wall recoil). The ITPR generates a pre-set continuous and controlled expiratory phase negative intrathoracic pressure that is interrupted only when positive pressure ventilation is needed to maintain oxygenation and provide gas exchange.
The purpose of the study is to compare the early safety and hemodynamic effects of S-CPR, ACD- CPR + ITD, and S-CPR + ITPR in patients with out-of-hospital cardiac arrest.
- Conditions
- Cardiac Arrest, Sudden Cardiac Death
- Being tested
- ACD-CPR, ITPR, S-CPR, Impedance Threshold Device (ITD)
- Keywords
- cardiopulmonary resuscitation
- Medical subject headings
- Heart Arrest, Death, Sudden, Cardiac
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ACD-CPRDevice
Also called ResQPRO Active Compression Decompression CPR Device (Advanced Circulatory Systems, Inc., Roseville, MN)
ITPRDevice
Also called CirQlator Intrathoracic Pressure Regulator (Advanced Circulatory Systems, Inc., Roseville, MN)
standard CPR with use of the CirQlator intrathoracic pressure regulator (ITPR)
S-CPRProcedure or surgery
standard manual CPR
Impedance Threshold Device (ITD)Device
Also called ResQPOD 16 (Advanced Circulatory Systems, Inc)
| Study group | Role | What they receive |
|---|---|---|
| ACD-CPR +ITD | Experimental | Active Compression Decompression CPR with the ResQPRO device and ResQPOD ITD device. Receives: Device: ACD-CPR; Device: Impedance Threshold Device (ITD) |
| S-CPR + ITPR | Experimental | Not described Receives: Device: ITPR |
| S-CPR | Active comparator | Not described Receives: Procedure: S-CPR |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean Systolic and Diastolic Blood Pressures
Measured: during CPR (day 1)
Serious Adverse Events
Serious adverse events include: death, internal thoracic and abdominal injuries, device malfunction preventing use during CPR
Measured: during the index CPR procedure (day 1), at hospital discharge, at 30 days, at three months, and at six months of follow-up
Secondary outcomes (1)
Mean Intrathoracic Pressure (Airway Pressure)
Intrathoracic pressures are reported relative to atmospheric pressure
Measured: during CPR (day 1)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Mar 2011 (estimated)
- Study startMar 2011
- Primary completionDec 2012
- Study completionDec 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (30)Papers the sponsor has linked to this study.
- Other trials for Cardiac ArrestStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 48 participants (actual)
Sponsor and investigators
- Lead sponsor
- Advanced Circulatory Systems
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Sponsor
- Investigators
- Keith Lurie, MD, Principal investigator, Advanced Circulatory Systems
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01325870
- Sponsor's protocol ID
- 43-0566-000
- Other IDs
- 2R44HL082088
- Status last verified
- Jul 2016
- First submitted
- 28 Mar 2011
- Last updated
- 12 Aug 2016
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Niemann JT. Cardiopulmonary resuscitation. N Engl J Med. 1992 Oct 8;327(15):1075-80. doi: 10.1056/NEJM199210083271507. No abstract available.
PubMed 1522844Duggal C, Weil MH, Gazmuri RJ, Tang W, Sun S, O'Connell F, Ali M. Regional blood flow during closed-chest cardiac resuscitation in rats. J Appl Physiol (1985). 1993 Jan;74(1):147-52. doi: 10.1152/jappl.1993.74.1.147.
PubMed 8444685Lurie KG, Voelckel WG, Zielinski T, McKnite S, Lindstrom P, Peterson C, Wenzel V, Lindner KH, Samniah N, Benditt D. Improving standard cardiopulmonary resuscitation with an inspiratory impedance threshold valve in a porcine model of cardiac arrest. Anesth Analg. 2001 Sep;93(3):649-55. doi: 10.1097/00000539-200109000-00024.
PubMed 11524335Langhelle A, Stromme T, Sunde K, Wik L, Nicolaysen G, Steen PA. Inspiratory impedance threshold valve during CPR. Resuscitation. 2002 Jan;52(1):39-48. doi: 10.1016/s0300-9572(01)00442-7.
PubMed 11801347Lurie KG, Coffeen P, Shultz J, McKnite S, Detloff B, Mulligan K. Improving active compression-decompression cardiopulmonary resuscitation with an inspiratory impedance valve. Circulation. 1995 Mar 15;91(6):1629-32. doi: 10.1161/01.cir.91.6.1629.
PubMed 7882467Plaisance P, Lurie KG, Payen D. Inspiratory impedance during active compression-decompression cardiopulmonary resuscitation: a randomized evaluation in patients in cardiac arrest. Circulation. 2000 Mar 7;101(9):989-94. doi: 10.1161/01.cir.101.9.989.
PubMed 10704165Plaisance P, Lurie KG, Vicaut E, Adnet F, Petit JL, Epain D, Ecollan P, Gruat R, Cavagna P, Biens J, Payen D. A comparison of standard cardiopulmonary resuscitation and active compression-decompression resuscitation for out-of-hospital cardiac arrest. French Active Compression-Decompression Cardiopulmonary Resuscitation Study Group. N Engl J Med. 1999 Aug 19;341(8):569-75. doi: 10.1056/NEJM199908193410804.
PubMed 10451462Voelckel WG, Lurie KG, Sweeney M, McKnite S, Zielinski T, Lindstrom P, Peterson C, Wenzel V, Lindner KH. Effects of active compression-decompression cardiopulmonary resuscitation with the inspiratory threshold valve in a young porcine model of cardiac arrest. Pediatr Res. 2002 Apr;51(4):523-7. doi: 10.1203/00006450-200204000-00020.
PubMed 11919340Wolcke BB, Mauer DK, Schoefmann MF, Teichmann H, Provo TA, Lindner KH, Dick WF, Aeppli D, Lurie KG. Comparison of standard cardiopulmonary resuscitation versus the combination of active compression-decompression cardiopulmonary resuscitation and an inspiratory impedance threshold device for out-of-hospital cardiac arrest. Circulation. 2003 Nov 4;108(18):2201-5. doi: 10.1161/01.CIR.0000095787.99180.B5. Epub 2003 Oct 20.
PubMed 14568898Shultz JJ, Coffeen P, Sweeney M, Detloff B, Kehler C, Pineda E, Yakshe P, Adler SW, Chang M, Lurie KG. Evaluation of standard and active compression-decompression CPR in an acute human model of ventricular fibrillation. Circulation. 1994 Feb;89(2):684-93. doi: 10.1161/01.cir.89.2.684.
PubMed 8313556Guidelines 2000 for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Part 2: ethical aspects of CPR and ECC. Circulation. 2000 Aug 22;102(8 Suppl):I12-21. No abstract available.
PubMed 10966661Aufderheide TP, Pirrallo RG, Yannopoulos D, Klein JP, von Briesen C, Sparks CW, Deja KA, Conrad CJ, Kitscha DJ, Provo TA, Lurie KG. Incomplete chest wall decompression: a clinical evaluation of CPR performance by EMS personnel and assessment of alternative manual chest compression-decompression techniques. Resuscitation. 2005 Mar;64(3):353-62. doi: 10.1016/j.resuscitation.2004.10.007.
PubMed 15733766Yannopoulos D, Aufderheide TP, Gabrielli A, Beiser DG, McKnite SH, Pirrallo RG, Wigginton J, Becker L, Vanden Hoek T, Tang W, Nadkarni VM, Klein JP, Idris AH, Lurie KG. Clinical and hemodynamic comparison of 15:2 and 30:2 compression-to-ventilation ratios for cardiopulmonary resuscitation. Crit Care Med. 2006 May;34(5):1444-9. doi: 10.1097/01.CCM.0000216705.83305.99.
PubMed 16557155Aufderheide TP, Pirrallo RG, Provo TA, Lurie KG. Clinical evaluation of an inspiratory impedance threshold device during standard cardiopulmonary resuscitation in patients with out-of-hospital cardiac arrest. Crit Care Med. 2005 Apr;33(4):734-40. doi: 10.1097/01.ccm.0000155909.09061.12.
PubMed 15818098Lurie K, Voelckel W, Plaisance P, Zielinski T, McKnite S, Kor D, Sugiyama A, Sukhum P. Use of an inspiratory impedance threshold valve during cardiopulmonary resuscitation: a progress report. Resuscitation. 2000 May;44(3):219-30. doi: 10.1016/s0300-9572(00)00160-x.
PubMed 10825624
Study at a glance
From the registry record, last updated by the sponsor on 12 Aug 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Standard Cardiopulmonary Resuscitation Alone Versus Active Compression Decompression Cardiopulmonary Resuscitation Plus an Impedance Threshold Device Versus Standard Cardiopulmonary Resuscitation Plus an Intrathoracic Pressure Regulator on Arterial Blood Pressures During Out-of-Hospital Cardiac Arrest
- ClinicalTrials.gov ID
- NCT01325870
- Acronym / sponsor ID
- 43-0566-000
- Conditions
- Cardiac Arrest, Sudden Cardiac Death
- Keywords
- cardiopulmonary resuscitation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 48 participants (actual)
- Lead sponsor
- Advanced Circulatory SystemsIndustry (pharma, biotech, devices)
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- Mar 2011
- Primary completion
- Dec 2012 (actual)
- Study completion
- Dec 2012 (actual)
- First posted
- 30 Mar 2011 (estimated)
- Results
- Posted 17 Jul 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
More than 300,000 Americans experience out-of-hospital cardiac arrest annually, with overall survival rates averaging less than 5%. Low survival rates persist, in part, because manual chest compressions and ventilation, termed standard cardiopulmonary resuscitation (S-CPR), is an inherently inefficient process, providing less than 25% of normal blood flow to the heart and the brain. Hemodynamics are often compromised further by poor S-CPR techniques, especially inadequate chest compression and incomplete chest recoil. Active Compression Decompression CPR (ACD-CPR) is performed with a hand-held device that is attached to the patient's chest, and also includes a handle containing a metronome and force gauge to guide proper compression rate, depth and complete chest wall recoil. The impedance threshold device (ITD) is designed for rapid connection to an airway adjunct (e.g. facemask or endotracheal tube) and allows for positive pressure ventilation, while also impeding passive inspiratory gas exchange during chest wall decompression. Prior studies have shown that the combination of ACD-CPR + ITD enhances refilling of the heart after each compression by augmenting negative intrathoracic pressure during the decompression phase of CPR, resulting in improved cardiac and cerebral perfusion. The intrathoracic pressure regulator (ITPR) is a next generation inspiratory impedance therapy. The ITPR uses a regulated external vacuum source to lower the negative intrathoracic pressure and is therefore less dependent on the quality of CPR (e.g., completeness of chest wall recoil). The ITPR generates a pre-set continuous and controlled expiratory phase negative intrathoracic pressure that is interrupted only when positive pressure ventilation is needed to maintain oxygenation and provide gas exchange.
The purpose of the study is to compare the early safety and hemodynamic effects of S-CPR, ACD- CPR + ITD, and S-CPR + ITPR in patients with out-of-hospital cardiac arrest.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| ACD-CPR +ITD | Experimental | Device: ACD-CPR, Device: Impedance Threshold Device (ITD)Active Compression Decompression CPR with the ResQPRO device and ResQPOD ITD device. |
| S-CPR + ITPR | Experimental | Device: ITPR |
| S-CPR | Active comparator | Procedure: S-CPR |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ACD-CPRAlso: ResQPRO Active Compression Decompression CPR Device (Advanced Circulatory Systems, Inc., Roseville, MN) | Device | ACD-CPR +ITD |
| ITPRAlso: CirQlator Intrathoracic Pressure Regulator (Advanced Circulatory Systems, Inc., Roseville, MN)standard CPR with use of the CirQlator intrathoracic pressure regulator (ITPR) | Device | S-CPR + ITPR |
| S-CPRstandard manual CPR | Procedure or surgery | S-CPR |
| Impedance Threshold Device (ITD)Also: ResQPOD 16 (Advanced Circulatory Systems, Inc) | Device | ACD-CPR +ITD |
Primary outcome
Mean Systolic and Diastolic Blood Pressures
Time frame: during CPR (day 1)
Serious Adverse Events
Time frame: during the index CPR procedure (day 1), at hospital discharge, at 30 days, at three months, and at six months of follow-up
Serious adverse events include: death, internal thoracic and abdominal injuries, device malfunction preventing use during CPR
1 secondary outcome
Mean Intrathoracic Pressure (Airway Pressure)
Time frame: during CPR (day 1)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Aug 2016.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 1522844Niemann JT. Cardiopulmonary resuscitation. N Engl J Med. 1992 Oct 8;327(15):1075-80. doi: 10.1056/NEJM199210083271507. No abstract available.
- Background: PubMed 8444685Duggal C, Weil MH, Gazmuri RJ, Tang W, Sun S, O'Connell F, Ali M. Regional blood flow during closed-chest cardiac resuscitation in rats. J Appl Physiol (1985). 1993 Jan;74(1):147-52. doi: 10.1152/jappl.1993.74.1.147.
- Background: PubMed 11524335Lurie KG, Voelckel WG, Zielinski T, McKnite S, Lindstrom P, Peterson C, Wenzel V, Lindner KH, Samniah N, Benditt D. Improving standard cardiopulmonary resuscitation with an inspiratory impedance threshold valve in a porcine model of cardiac arrest. Anesth Analg. 2001 Sep;93(3):649-55. doi: 10.1097/00000539-200109000-00024.
- Background: PubMed 11801347Langhelle A, Stromme T, Sunde K, Wik L, Nicolaysen G, Steen PA. Inspiratory impedance threshold valve during CPR. Resuscitation. 2002 Jan;52(1):39-48. doi: 10.1016/s0300-9572(01)00442-7.
- Background: PubMed 7882467Lurie KG, Coffeen P, Shultz J, McKnite S, Detloff B, Mulligan K. Improving active compression-decompression cardiopulmonary resuscitation with an inspiratory impedance valve. Circulation. 1995 Mar 15;91(6):1629-32. doi: 10.1161/01.cir.91.6.1629.
- Background: PubMed 10704165Plaisance P, Lurie KG, Payen D. Inspiratory impedance during active compression-decompression cardiopulmonary resuscitation: a randomized evaluation in patients in cardiac arrest. Circulation. 2000 Mar 7;101(9):989-94. doi: 10.1161/01.cir.101.9.989.
- Background: PubMed 10451462Plaisance P, Lurie KG, Vicaut E, Adnet F, Petit JL, Epain D, Ecollan P, Gruat R, Cavagna P, Biens J, Payen D. A comparison of standard cardiopulmonary resuscitation and active compression-decompression resuscitation for out-of-hospital cardiac arrest. French Active Compression-Decompression Cardiopulmonary Resuscitation Study Group. N Engl J Med. 1999 Aug 19;341(8):569-75. doi: 10.1056/NEJM199908193410804.
- Background: PubMed 11919340Voelckel WG, Lurie KG, Sweeney M, McKnite S, Zielinski T, Lindstrom P, Peterson C, Wenzel V, Lindner KH. Effects of active compression-decompression cardiopulmonary resuscitation with the inspiratory threshold valve in a young porcine model of cardiac arrest. Pediatr Res. 2002 Apr;51(4):523-7. doi: 10.1203/00006450-200204000-00020.
- Background: PubMed 14568898Wolcke BB, Mauer DK, Schoefmann MF, Teichmann H, Provo TA, Lindner KH, Dick WF, Aeppli D, Lurie KG. Comparison of standard cardiopulmonary resuscitation versus the combination of active compression-decompression cardiopulmonary resuscitation and an inspiratory impedance threshold device for out-of-hospital cardiac arrest. Circulation. 2003 Nov 4;108(18):2201-5. doi: 10.1161/01.CIR.0000095787.99180.B5. Epub 2003 Oct 20.
- Background: PubMed 8313556Shultz JJ, Coffeen P, Sweeney M, Detloff B, Kehler C, Pineda E, Yakshe P, Adler SW, Chang M, Lurie KG. Evaluation of standard and active compression-decompression CPR in an acute human model of ventricular fibrillation. Circulation. 1994 Feb;89(2):684-93. doi: 10.1161/01.cir.89.2.684.
- Background: PubMed 10966661Guidelines 2000 for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Part 2: ethical aspects of CPR and ECC. Circulation. 2000 Aug 22;102(8 Suppl):I12-21. No abstract available.
- Background: PubMed 15733766Aufderheide TP, Pirrallo RG, Yannopoulos D, Klein JP, von Briesen C, Sparks CW, Deja KA, Conrad CJ, Kitscha DJ, Provo TA, Lurie KG. Incomplete chest wall decompression: a clinical evaluation of CPR performance by EMS personnel and assessment of alternative manual chest compression-decompression techniques. Resuscitation. 2005 Mar;64(3):353-62. doi: 10.1016/j.resuscitation.2004.10.007.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Keith Lurie, MD principal investigator
Advanced Circulatory Systems
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing ACD-CPR, ITPR and S-CPR in people with Cardiac Arrest and Sudden Cardiac Death, run by Advanced Circulatory Systems 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?
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 12 Aug 2016. 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 17 Jul 2014). 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?
Mean Systolic and Diastolic Blood Pressures (time frame: during CPR (day 1)). The study lists 2 primary outcomes in all. 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 NCT01325870, which also lists 30 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 12 Aug 2016.