StrokePhase 2NCT01845441
Use of Dexmedetomidine in Acute Stroke and Cerebral Vasospasm Interventions
A Phase 2 study testing Dexmedetomidine, Fentanyl and Midazolam in people with Stroke and Brain Ischemia, run by University Hospitals Cleveland Medical Center at 1 site in United States.
Trial summary
Dexmedetomidine is a unique sedative medication able to provide sedation without causing respiratory depression and maintaining neurological functions. Patients having an acute ischemic stroke and need to undergo endovascular therapy require constant assessment of their neurological status prior, during and after the… Read more about this study
- Who is it for?
- Ages 18 to 85 years
- Conditions the study is for
- Stroke, Brain Ischemia, Vasospasm, Intracranial
- What is being tested?
- Dexmedetomidine, Fentanyl and Midazolam
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 7 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 2012to Dec 2021
- Phase
- Phase 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 to 85 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with acute ischemic stroke who require endovascular intervention with whom mNIHSS score can be obtained
- Patients with cerebral vasospasm suspiciousness with or without subarachnoid hemorrhage with whom mNIHSS score can be obtained.
Who cannot join
- History of severe hepatic disease or severe renal disease (GFR<20).
- Hemodynamic instability.
- Pregnancy.
- Known allergy to study drug.
- Evidence or history of cardiac electrophysiology instability including uncontrolled hemodynamically unstable complex atrial/ventricular arrhythmia or conduction block at the time of evaluation with the exception of atrial fibrillation, and heart rate less than 60 or systolic blood pressure less than 90.
- Respiratory compromise requiring intubation.
- Any medical (including history of cardiac conduction block, major hepatic or renal disease) or laboratory abnormality that may increase the risk associated with the trial participation or drug administration or may interfere with interpretation of trial results.
Trial locations and contacts
1 site in 1 country.
United States1 site
University Hospitals of Cleveland
Cleveland, Ohio, 44106
About this study
Official title: A Randomized, Controlled Trial on Dexmedetomidine for Providing Adequate Sedation and Preserved Neurologic Examination for Endovascular Treatment of Acute Ischemic Stroke or Cerebral Vasospasm.
Dexmedetomidine is a unique sedative medication able to provide sedation without causing respiratory depression and maintaining neurological functions. Patients having an acute ischemic stroke and need to undergo endovascular therapy require constant assessment of their neurological status prior, during and after the interventional procedure. In this study the investigators will compare the efficacy of Dexmedetomidine to other standard sedative medications in providing optimal sedative effect while maintaining neurological function.
Read the detailed description
Precedex is a unique FDA-approved intravenous medication for conscious sedation in that it allows for "arousable" sedation, which is particularly appealing for use in patients with compromised neurologic function. While Precedex has been shown to be equivalent, if not superior to, conventional sedation in the procedural setting, it has not yet been evaluated in the setting of endovascular treatment of acute stroke. This setting is particularly ripe for evaluation, as there is currently controversy over the best method for management of patient sedation in light of the auxiliary need to preserve neurologic function. In order to evaluate the benefit of Precedex in this setting, it must be compared to the usual standard of care. Through the investigators double blinded randomized trial, the investigators will obtain information on the comparison between two arms, one receiving Precedex and the other the usual standard of care at the investigators institution, for achieving and maintaining a pre-defined level of conscious sedation, while preserving baseline neurologic status. This assessment will optimistically serve as the basis for future large-scale studies and ultimately to the establishment of Precedex as a first-line sedative in the management of acute stroke and cerebral vasospasm patients undergoing endovascular intervention.
- Being tested
- Dexmedetomidine, Fentanyl, Midazolam
- Keywords
- Dexmedetomidine, Endovascular procedure, Stroke, Vasospasm, intracranial, Conscious sedation
- Medical subject headings
- Stroke, Brain Ischemia, Vasospasm, Intracranial, Intracranial Hemorrhages
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DexmedetomidineDrug
Also called Precedex
Precedex will be given to randomized subjects in thi study to evaluate its efficacy in maintaining optimal sedation and preserving neurological exam.
FentanylDrug
Also called Sublimaze, Fentora, Instanyl
Patients in the control arm will receive no medication or standard sedative drug for the interventional procedure.
MidazolamDrug
Also called Dormicum, Hypnovel, Versed
Patients in the control arm will receive no medication or standard sedative drug for the interventional procedure.
| Study group | Role | What they receive |
|---|---|---|
| Dexmedetomidine arm | Experimental | Precedex will be started after randomization/prior to catheterization and will be stopped at the end of the procedure. It will be used for an average of 90 minutes and will be used as a continuous intravenous infusion started at 0.3 mcg/kg/hour. If HR > 80 and BP > 120/70, a full loading dose (1.0 mcg/kg/hour) will be administered over 10 minutes. If HR is 60 - 80 or systolic BP is 90 - 120, or age > 65 years, a reduced loading dose of 0.5 mcg/kg will be given over 10 minutes. If no volume overload history, 500mL of colloid (hespan or albumin) will be bolused with 0.2mg of glycopyrrolate. Every 10 minutes, Precedex will be titrated by 0.1 mcg/kg/hour to achieve and maintain RASS of 0 to -1. Receives: Drug: Dexmedetomidine |
| Control arm | Active comparator | Our usual standard of care is to attempt the intervention without sedation. As per attending physician discretion, Fentanyl (50mcg) and/or Midazolam (0.5 mg) intravenous boluses will be used to control aggressive patient movement that adversely affects the technical capacity of the procedure. The boluses will be repeated at interval of 10 minutes, as necessary. Control arm patients will receive a normal saline placebo drip for the purposes of ensuring patient assessor blindness. Receives: Drug: Fentanyl; Drug: Midazolam |
What is being measured
The primary outcome is the main question the study is designed to answer.
Numbers of Patient Movements (Events) That Delay or Adversely Affect the Procedure Performance and Safety.
Patient will be continuously monitored for movements that delays or adversely affect the performance of the procedure by the patient assessor in a safe and timely manner (an event). One minute interval between patient event assessments will be given to prevent subjective bias. After every one minute, it will be determined if an event has occurred. Over the length of the procedure, the total number of one-minute intervals with an event occurrence will be summed and then divided by the total of minutes in the procedure to obtain a standardized value as the primary outcome. This will allow for direct comparison of values across the procedures of varying length. This approach will be more systematic and more easily replicable than counting events directly, which requires interpretation as to when a movement event begins and ends, which can be difficult and more subjective.
Measured: Primary outcome will be assessed during the procedure, up to 4 hours.
Secondary outcomes (2)
Preserved Neurological Examination.
Neurological status using modified NIHSS (National Institutes of Health Stroke Scale) is a 15-item neurologic examination stroke scale, between 0 and 4, with 0 being normal functioning and 4 being completely impaired.
Measured: Up to 8 hours
Maintenance of Optimal Sedation Target in Both Groups.
Both arms will be assessed by the patient assessor with RASS score measurement at baseline and every 20 minutes thereafter for the length of the procedure (up to 8 hours) and then averaged together to get one over all score . In the Dexmedetomidine arm the drug will be titrated by 0.1mcg/Kg/hour by the treating physician clinical judgment, in order to achieve and maintain RASS of 0 - 1. In the control arm the drug adjustment will not be based on the RASS score, but by physician discretion only. It is a 10-point scale to determine sedation, with a score from +4 (very combative, violent, dangerous to staff) to -5 (unarousable, no response to voice or physical stimulation).
Measured: Up to 8 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 May 2013 (estimated)
- Study startApr 2012
- Primary completionDec 2021
- Study completionDec 2021
Why it stopped: The principal investigator left employment at the sponsoring Institution
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 (13)Papers the sponsor has linked to this study.
- Other trials for StrokeStudies of the same condition, open and under way.
- More trials run by University Hospitals Cleveland Medical CenterThe sponsor's other registered studies.
- 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 2
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 7 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Sponsor type
- University, hospital or other
- Collaborators
- Hospira, now a wholly owned subsidiary of Pfizer
- Responsible party
- Sponsor
- Investigators
- Kristine A Blackham, MD, Principal investigator, University Hospitals Cleveland Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01845441
- Sponsor's protocol ID
- 09-11-10
- Other IDs
- GIA#PRE-10-1003
- Status last verified
- Nov 2022
- First submitted
- 29 Apr 2013
- Last updated
- 28 Dec 2022
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Arepally A, Oechsle D, Kirkwood S, Savader SJ. Safety of conscious sedation in interventional radiology. Cardiovasc Intervent Radiol. 2001 May-Jun;24(3):185-90. doi: 10.1007/s002700002549.
PubMed 11443407Penumbra Pivotal Stroke Trial Investigators. The penumbra pivotal stroke trial: safety and effectiveness of a new generation of mechanical devices for clot removal in intracranial large vessel occlusive disease. Stroke. 2009 Aug;40(8):2761-8. doi: 10.1161/STROKEAHA.108.544957. Epub 2009 Jul 9.
PubMed 19590057Smith WS, Sung G, Saver J, Budzik R, Duckwiler G, Liebeskind DS, Lutsep HL, Rymer MM, Higashida RT, Starkman S, Gobin YP; Multi MERCI Investigators; Frei D, Grobelny T, Hellinger F, Huddle D, Kidwell C, Koroshetz W, Marks M, Nesbit G, Silverman IE. Mechanical thrombectomy for acute ischemic stroke: final results of the Multi MERCI trial. Stroke. 2008 Apr;39(4):1205-12. doi: 10.1161/STROKEAHA.107.497115. Epub 2008 Feb 28.
PubMed 18309168Gupta R, Vora NA, Horowitz MB, Tayal AH, Hammer MD, Uchino K, Levy EI, Wechsler LR, Jovin TG. Multimodal reperfusion therapy for acute ischemic stroke: factors predicting vessel recanalization. Stroke. 2006 Apr;37(4):986-90. doi: 10.1161/01.STR.0000209303.02474.27. Epub 2006 Mar 9.
PubMed 16527997Furlan A, Higashida R, Wechsler L, Gent M, Rowley H, Kase C, Pessin M, Ahuja A, Callahan F, Clark WM, Silver F, Rivera F. Intra-arterial prourokinase for acute ischemic stroke. The PROACT II study: a randomized controlled trial. Prolyse in Acute Cerebral Thromboembolism. JAMA. 1999 Dec 1;282(21):2003-11. doi: 10.1001/jama.282.21.2003.
PubMed 10591382Flaherty ML, Woo D, Kissela B, Jauch E, Pancioli A, Carrozzella J, Spilker J, Sekar P, Broderick J, Tomsick T. Combined IV and intra-arterial thrombolysis for acute ischemic stroke. Neurology. 2005 Jan 25;64(2):386-8. doi: 10.1212/01.WNL.0000149529.78396.B0.
PubMed 15668451Haslam PJ, Yap B, Mueller PR, Lee MJ. Anesthesia practice and clinical trends in interventional radiology: a European survey. Cardiovasc Intervent Radiol. 2000 Jul-Aug;23(4):256-61. doi: 10.1007/s002700010065.
PubMed 10960537Abou-Chebl A, Lin R, Hussain MS, Jovin TG, Levy EI, Liebeskind DS, Yoo AJ, Hsu DP, Rymer MM, Tayal AH, Zaidat OO, Natarajan SK, Nogueira RG, Nanda A, Tian M, Hao Q, Kalia JS, Nguyen TN, Chen M, Gupta R. Conscious sedation versus general anesthesia during endovascular therapy for acute anterior circulation stroke: preliminary results from a retrospective, multicenter study. Stroke. 2010 Jun;41(6):1175-9. doi: 10.1161/STROKEAHA.109.574129. Epub 2010 Apr 15.
PubMed 20395617Varma MK, Price K, Jayakrishnan V, Manickam B, Kessell G. Anaesthetic considerations for interventional neuroradiology. Br J Anaesth. 2007 Jul;99(1):75-85. doi: 10.1093/bja/aem122. Epub 2007 Jun 11.
PubMed 17562678Chamczuk AJ, Ogilvy CS, Snyder KV, Ohta H, Siddiqui AH, Hopkins LN, Levy EI. Elective stenting for intracranial stenosis under conscious sedation. Neurosurgery. 2010 Nov;67(5):1189-93; discussion 1194. doi: 10.1227/NEU.0b013e3181efbcac.
PubMed 20871450Stoneburner JM, Nishanian GP, Cukingnan RA, Carey JS. Carotid endarterectomy using regional anesthesia: a benchmark for stenting. Am Surg. 2002 Dec;68(12):1120-3.
PubMed 12516822Hoffman WE, Kochs E, Werner C, Thomas C, Albrecht RF. Dexmedetomidine improves neurologic outcome from incomplete ischemia in the rat. Reversal by the alpha 2-adrenergic antagonist atipamezole. Anesthesiology. 1991 Aug;75(2):328-32. doi: 10.1097/00000542-199108000-00022.
PubMed 1677549Taiji K. [Dexmedetomidine hydrochloride (Precedex), a new sedative in intensive care, its pharmacological characteristics and clinical study result]. Nihon Yakurigaku Zasshi. 2004 Sep;124(3):171-9. doi: 10.1254/fpj.124.171. Japanese.
PubMed 15333990
Study at a glance
From the registry record, last updated by the sponsor on 28 Dec 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Controlled Trial on Dexmedetomidine for Providing Adequate Sedation and Preserved Neurologic Examination for Endovascular Treatment of Acute Ischemic Stroke or Cerebral Vasospasm.
- ClinicalTrials.gov ID
- NCT01845441
- Acronym / sponsor ID
- 09-11-10
- Keywords
- Dexmedetomidine, Endovascular procedure, Stroke, Vasospasm, intracranial, Conscious sedation
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: The principal investigator left employment at the sponsoring Institution
- Enrolment
- 7 participants (actual)
- Lead sponsor
- University Hospitals Cleveland Medical CenterUniversity, hospital or other
- Collaborators
- Hospira, now a wholly owned subsidiary of Pfizer
- Study start
- Apr 2012
- Primary completion
- Dec 2021 (actual)
- Study completion
- Dec 2021 (actual)
- First posted
- 3 May 2013 (estimated)
- Results
- Posted 28 Dec 2022
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Dexmedetomidine is a unique sedative medication able to provide sedation without causing respiratory depression and maintaining neurological functions. Patients having an acute ischemic stroke and need to undergo endovascular therapy require constant assessment of their neurological status prior, during and after the interventional procedure. In this study the investigators will compare the efficacy of Dexmedetomidine to other standard sedative medications in providing optimal sedative effect while maintaining neurological function.
Detailed description
Precedex is a unique FDA-approved intravenous medication for conscious sedation in that it allows for "arousable" sedation, which is particularly appealing for use in patients with compromised neurologic function. While Precedex has been shown to be equivalent, if not superior to, conventional sedation in the procedural setting, it has not yet been evaluated in the setting of endovascular treatment of acute stroke. This setting is particularly ripe for evaluation, as there is currently controversy over the best method for management of patient sedation in light of the auxiliary need to preserve neurologic function. In order to evaluate the benefit of Precedex in this setting, it must be compared to the usual standard of care. Through the investigators double blinded randomized trial, the investigators will obtain information on the comparison between two arms, one receiving Precedex and the other the usual standard of care at the investigators institution, for achieving and maintaining a pre-defined level of conscious sedation, while preserving baseline neurologic status. This assessment will optimistically serve as the basis for future large-scale studies and ultimately to the establishment of Precedex as a first-line sedative in the management of acute stroke and cerebral vasospasm patients undergoing endovascular intervention.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Dexmedetomidine arm | Experimental | Drug: DexmedetomidinePrecedex will be started after randomization/prior to catheterization and will be stopped at the end of the procedure. It will be used for an average of 90 minutes and will be used as a continuous intravenous infusion started at 0.3 mcg/kg/hour. If HR > 80 and BP > 120/70, a full loading dose (1.0 mcg/kg/hour) will be administered over 10 minutes. If HR is 60 - 80 or systolic BP is 90 - 120, or age > 65 years, a reduced loading dose of 0.5 mcg/kg will be given over 10 minutes. If no volume overload history, 500mL of colloid (hespan or albumin) will be bolused with 0.2mg of glycopyrrolate. Every 10 minutes, Precedex will be titrated by 0.1 mcg/kg/hour to achieve and maintain RASS of 0 to -1. |
| Control arm | Active comparator | Drug: Fentanyl, Drug: MidazolamOur usual standard of care is to attempt the intervention without sedation. As per attending physician discretion, Fentanyl (50mcg) and/or Midazolam (0.5 mg) intravenous boluses will be used to control aggressive patient movement that adversely affects the technical capacity of the procedure. The boluses will be repeated at interval of 10 minutes, as necessary. Control arm patients will receive a normal saline placebo drip for the purposes of ensuring patient assessor blindness. |
Who may qualify
- Ages
- 18 to 85 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Patients with acute ischemic stroke who require endovascular intervention with whom mNIHSS score can be obtained
- Patients with cerebral vasospasm suspiciousness with or without subarachnoid hemorrhage with whom mNIHSS score can be obtained.
Key exclusion criteria (7 listed)
- History of severe hepatic disease or severe renal disease (GFR<20).
- Hemodynamic instability.
- Pregnancy.
- Known allergy to study drug.
- Evidence or history of cardiac electrophysiology instability including uncontrolled hemodynamically unstable complex atrial/ventricular arrhythmia or conduction block at the time of evaluation with the exception of atrial fibrillation, and heart rate less than 60 or systolic blood pressure less than 90.
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 |
|---|---|---|
| DexmedetomidineAlso: PrecedexPrecedex will be given to randomized subjects in thi study to evaluate its efficacy in maintaining optimal sedation and preserving neurological exam. | Drug | Dexmedetomidine arm |
| FentanylAlso: Sublimaze, Fentora, InstanylPatients in the control arm will receive no medication or standard sedative drug for the interventional procedure. | Drug | Control arm |
| MidazolamAlso: Dormicum, Hypnovel, VersedPatients in the control arm will receive no medication or standard sedative drug for the interventional procedure. | Drug | Control arm |
Primary outcome
Numbers of Patient Movements (Events) That Delay or Adversely Affect the Procedure Performance and Safety.
Time frame: Primary outcome will be assessed during the procedure, up to 4 hours.
Patient will be continuously monitored for movements that delays or adversely affect the performance of the procedure by the patient assessor in a safe and timely manner (an event). One minute interval between patient event assessments will be given to prevent subjective bias. After every one minute, it will be determined if an event has occurred. Over the length of the procedure, the total number of one-minute intervals with an event occurrence will be summed and then divided by the total of minutes in the procedure to obtain a standardized value as the primary outcome. This will allow for direct comparison of values across the procedures of varying length. This approach will be more systematic and more easily replicable than counting events directly, which requires interpretation as to when a movement event begins and ends, which can be difficult and more subjective.
2 secondary outcomes
Preserved Neurological Examination.
Time frame: Up to 8 hours
Maintenance of Optimal Sedation Target in Both Groups.
Time frame: Up to 8 hours
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Dec 2022.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 11443407Arepally A, Oechsle D, Kirkwood S, Savader SJ. Safety of conscious sedation in interventional radiology. Cardiovasc Intervent Radiol. 2001 May-Jun;24(3):185-90. doi: 10.1007/s002700002549.
- Background: PubMed 19590057Penumbra Pivotal Stroke Trial Investigators. The penumbra pivotal stroke trial: safety and effectiveness of a new generation of mechanical devices for clot removal in intracranial large vessel occlusive disease. Stroke. 2009 Aug;40(8):2761-8. doi: 10.1161/STROKEAHA.108.544957. Epub 2009 Jul 9.
- Background: PubMed 18309168Smith WS, Sung G, Saver J, Budzik R, Duckwiler G, Liebeskind DS, Lutsep HL, Rymer MM, Higashida RT, Starkman S, Gobin YP; Multi MERCI Investigators; Frei D, Grobelny T, Hellinger F, Huddle D, Kidwell C, Koroshetz W, Marks M, Nesbit G, Silverman IE. Mechanical thrombectomy for acute ischemic stroke: final results of the Multi MERCI trial. Stroke. 2008 Apr;39(4):1205-12. doi: 10.1161/STROKEAHA.107.497115. Epub 2008 Feb 28.
- Background: PubMed 16527997Gupta R, Vora NA, Horowitz MB, Tayal AH, Hammer MD, Uchino K, Levy EI, Wechsler LR, Jovin TG. Multimodal reperfusion therapy for acute ischemic stroke: factors predicting vessel recanalization. Stroke. 2006 Apr;37(4):986-90. doi: 10.1161/01.STR.0000209303.02474.27. Epub 2006 Mar 9.
- Background: PubMed 10591382Furlan A, Higashida R, Wechsler L, Gent M, Rowley H, Kase C, Pessin M, Ahuja A, Callahan F, Clark WM, Silver F, Rivera F. Intra-arterial prourokinase for acute ischemic stroke. The PROACT II study: a randomized controlled trial. Prolyse in Acute Cerebral Thromboembolism. JAMA. 1999 Dec 1;282(21):2003-11. doi: 10.1001/jama.282.21.2003.
- Background: PubMed 15668451Flaherty ML, Woo D, Kissela B, Jauch E, Pancioli A, Carrozzella J, Spilker J, Sekar P, Broderick J, Tomsick T. Combined IV and intra-arterial thrombolysis for acute ischemic stroke. Neurology. 2005 Jan 25;64(2):386-8. doi: 10.1212/01.WNL.0000149529.78396.B0.
- Background: PubMed 10960537Haslam PJ, Yap B, Mueller PR, Lee MJ. Anesthesia practice and clinical trends in interventional radiology: a European survey. Cardiovasc Intervent Radiol. 2000 Jul-Aug;23(4):256-61. doi: 10.1007/s002700010065.
- Background: PubMed 20395617Abou-Chebl A, Lin R, Hussain MS, Jovin TG, Levy EI, Liebeskind DS, Yoo AJ, Hsu DP, Rymer MM, Tayal AH, Zaidat OO, Natarajan SK, Nogueira RG, Nanda A, Tian M, Hao Q, Kalia JS, Nguyen TN, Chen M, Gupta R. Conscious sedation versus general anesthesia during endovascular therapy for acute anterior circulation stroke: preliminary results from a retrospective, multicenter study. Stroke. 2010 Jun;41(6):1175-9. doi: 10.1161/STROKEAHA.109.574129. Epub 2010 Apr 15.
- Background: PubMed 17562678Varma MK, Price K, Jayakrishnan V, Manickam B, Kessell G. Anaesthetic considerations for interventional neuroradiology. Br J Anaesth. 2007 Jul;99(1):75-85. doi: 10.1093/bja/aem122. Epub 2007 Jun 11.
- Background: PubMed 20871450Chamczuk AJ, Ogilvy CS, Snyder KV, Ohta H, Siddiqui AH, Hopkins LN, Levy EI. Elective stenting for intracranial stenosis under conscious sedation. Neurosurgery. 2010 Nov;67(5):1189-93; discussion 1194. doi: 10.1227/NEU.0b013e3181efbcac.
- Background: PubMed 12516822Stoneburner JM, Nishanian GP, Cukingnan RA, Carey JS. Carotid endarterectomy using regional anesthesia: a benchmark for stenting. Am Surg. 2002 Dec;68(12):1120-3.
- Background: PubMed 1677549Hoffman WE, Kochs E, Werner C, Thomas C, Albrecht RF. Dexmedetomidine improves neurologic outcome from incomplete ischemia in the rat. Reversal by the alpha 2-adrenergic antagonist atipamezole. Anesthesiology. 1991 Aug;75(2):328-32. doi: 10.1097/00000542-199108000-00022.
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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.
Kristine A Blackham, MD principal investigator
University Hospitals Cleveland Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Dexmedetomidine, Fentanyl and Midazolam in people with Stroke and Brain Ischemia, run by University Hospitals Cleveland Medical Center 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 2 inclusion and 7 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 28 Dec 2022. 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.
What does this 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.
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 28 Dec 2022). 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?
Numbers of Patient Movements (Events) That Delay or Adversely Affect the Procedure Performance and Safety. (time frame: Primary outcome will be assessed during the procedure, up to 4 hours.). 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 NCT01845441, which also lists 13 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 Dec 2022.