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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT00359424




Registration number
NCT00359424
Ethics application status
Date submitted
31/07/2006
Date registered
2/08/2006
Date last updated
13/12/2013

Titles & IDs
Public title
Interventional Management of Stroke (IMS) III Trial
Scientific title
Interventional Management of Stroke Trial (IMS III): A Phase III Clinical Trial Examining Whether a Combined Intravenous (IV) and Intra-Arterial (IA) Approach to Recanalization is Superior to Standard IV Rt-PA (Activase®) Alone
Secondary ID [1] 0 0
U01NS052220
Secondary ID [2] 0 0
U01NS052220
Universal Trial Number (UTN)
Trial acronym
IMSIII
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Stroke 0 0
Condition category
Condition code
Stroke 0 0 0 0
Haemorrhagic
Stroke 0 0 0 0
Ischaemic

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - IV rt-PA alone
Other interventions - endovascular therapy

Active comparator: intravenous (IV) rt-PA alone - Group one will receive the standard dose of intravenous (IV) rt-PA alone given over an hour.

Experimental: Endovascular therapy - Group two will receive a lower dose or a standard dose of IV rt-PA and then undergo an angiogram test (cerebral angiography) right after the medicine is given to check for blood clots. If a clot is not seen then no more treatment will be given. If a clot is seen, the neurointerventionalist will then choose (based on the location and extent of the blood clot) a protocol approved endovascular treatment given directly in the brain artery that will be most effective in reopening the blocked artery.


Treatment: Drugs: IV rt-PA alone
Intravenous (IV) recombinant tissue plasminogen activator (rt-PA) is the only approved acute stroke therapy; Group one will receive the standard dose of IV rt-PA given over an hour.

Other interventions: endovascular therapy
Group two will receive a lower dose or the standard dose of IV rt-PA and then undergo an angiogram test (cerebral angiography) right after the medicine is given to check for blood clots. If a clot is not seen then no more treatment will be given. If a clot is seen, the neurointerventionalist will then choose a protocol approved endovascular treatment given directly in the brain artery that will be most effective in reopening the blocked artery. Endovascular therapy can be implemented with or without interarterial rt-PA use.
Intervention code [1] 0 0
Treatment: Drugs
Intervention code [2] 0 0
Other interventions
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Modified Rankin Scale (mRS) Score Dichotomized to 0-2 Versus Greater Than 2.
Timepoint [1] 0 0
at 90 days post randomization
Primary outcome [2] 0 0
Death Due to Any Cause
Timepoint [2] 0 0
within 90 days post randomization
Primary outcome [3] 0 0
Symptomatic Intracranial Hemorrhage
Timepoint [3] 0 0
within the first 30 hours post IV rt-PA
Secondary outcome [1] 0 0
Incidence of Parenchymal Type II (PH2) Hematomas
Timepoint [1] 0 0
within 30 hours post IV rt-PA
Secondary outcome [2] 0 0
Asymptomatic Intracranial Hemorrhage
Timepoint [2] 0 0
within 30 hours post IV rt-PA
Secondary outcome [3] 0 0
National Institutes of Health Stroke Scale Score (NIHSS) >> Dichotomized 0-1 Versus 2 or Greater.
Timepoint [3] 0 0
at 24 hours post randomization
Secondary outcome [4] 0 0
National Institutes of Health Stroke Scale Score (NIHSS) Dichotomized 0-1 Versus 2 or Greater.
Timepoint [4] 0 0
at 90 days post randomization
Secondary outcome [5] 0 0
Barthel Index (BI) Dichotomized 0-90 Versus 95-100
Timepoint [5] 0 0
at 90 days post randomization
Secondary outcome [6] 0 0
Trail Making Test Part A Time
Timepoint [6] 0 0
90 days post randomization
Secondary outcome [7] 0 0
Trail Making Test Part B Time
Timepoint [7] 0 0
at 90 days post randomization
Secondary outcome [8] 0 0
Modified Rankin Scale (mRS) Score Dichotomized to 0-2 Versus Greater Than 2
Timepoint [8] 0 0
at 180 days
Secondary outcome [9] 0 0
Modified Rankin Scale (mRS) Score Dichotomized to 0-2 Versus Greater Than 2
Timepoint [9] 0 0
270 days
Secondary outcome [10] 0 0
Modified Rankin Scale (mRS) Score Dichotomized to 0-2 Versus Greater Than 2
Timepoint [10] 0 0
360 days post randomization

Eligibility
Key inclusion criteria
Inclusion Criteria

* Age: 18 through 82 years (i.e., candidates must have had their 18th birthday, but not had their 83rd birthday)
* Initiation of intravenous rt-PA within 3 hours of onset of stroke symptoms. Time of onset is defined as the last time when the subject was witnessed to be at baseline (i.e., subjects who have stroke symptoms upon awakening will be considered to have their onset at beginning of sleep)
* An NIHSSS >/= 10 at the time that intravenous rt-PA is begun or an NIHSSS >7 and <10 with an occlusion seen in M1, ICA or basilar artery on CTA at institutions where baseline CTA imaging is standard of care for acute stroke patients.
* Investigator verification that the subject has received/ is receiving the correct IV rt-PA dose for the estimated weight prior to randomization
Minimum age
18 Years
Maximum age
82 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Exclusion Criteria

* History of stroke in the past 3 months
* Previous intra-cranial hemorrhage, neoplasm, subarachnoid hemorrhage, or arteriovenous malformation
* Clinical presentation suggests a subarachnoid hemorrhage, even if initial CT scan is normal
* Hypertension at time of treatment; systolic BP > 185 or diastolic > 110 mm Hg) or aggressive measures to lower BP to below these limits are needed.
* Presumed septic embolus, or suspicion of bacterial endocarditis
* Presumed pericarditis, including pericarditis after acute MI
* Suspicion of aortic dissection
* Recent (within 30 days) surgery or biopsy of parenchymal organ
* Recent (within 30 days) trauma, with internal injuries or ulcerative wounds
* Recent (within 90 days) severe head trauma or head trauma with loss of consciousness
* Any active or recent (within 30 days) hemorrhage
* Pts with known hereditary or acquired hemorrhagic diathesis, coagulation factor deficiency or oral anticoagulant therapy require coagulation labs results prior to enrollment. Any subject with INR > 1.7 or institutionally equivalent prothrombin time is excluded. Patients without history or suspicion of coagulopathy do not require INR or prothrombin time lab results to be available prior to enrollment.
* Females of childbearing potential who are known to be pregnant and/or lactating or who have positive pregnancy tests on admission
* Baseline lab values: glucose < 50 mg/dl or > 400 mg/dl, platelets <100,000, or Hct <25
* Requires hemodialysis or peritoneal dialysis, or has a contraindication to an angiogram for whatever reason
* Received heparin or a direct thrombin inhibitor (Angiomax, argatroban, Refludan, Pradaxa) within 48 hours must have a normal partial thromboplastin time (PTT) to be eligible
* History of an arterial puncture at a non-compressible site or a lumbar puncture in the previous 7 days
* History of seizure at onset of stroke
* History of a pre-existing neurological or psychiatric disease that would confound the neurological or functional evaluations, mRS score at baseline must be < 2. This excludes patients who live in a nursing home or who are not fully independent for activities of daily living (toileting, dressing, eating, cooking and preparing meals, etc.)
* Other serious, advanced, or terminal illness
* Any other condition that the investigator feels would pose a significant hazard to the subject if Activase (Alteplase) therapy is initiated
* Current participation in another research drug treatment protocol
* Informed consent is not or cannot be obtained.
* High density lesion consistent with hemorrhage of any degree on baseline imaging
* Significant mass effect with midline shift on baseline imaging
* Large (>1/3 of the middle cerebral artery) regions of clear hypodensity on the baseline CT scan. (ASPECTS of < 4 can be used as a guideline) Sulcal effacement and/or loss of grey-white differentiation are not contraindications to tx
* CT evidence of intrapararenchymal tumor
* Baseline CTA without evidence of arterial occlusion

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Stopped early
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
1/08/2006
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/04/2013
Sample size
Target
Accrual to date
Final
656
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Royal Prince Alfred Hospital, Level 10 King George V Building, Missenden Rd - Camperdown
Recruitment hospital [2] 0 0
St. Vincent's Hospital, Clincial Trial Centre Level 5, 378 Victoria St., Darlinghurst - Sydney
Recruitment hospital [3] 0 0
Royal Melbourne Hospital, Dept. of Neurology, 4 East, Grattan St, Parkville - Victoria
Recruitment hospital [4] 0 0
Monash Medical Center, Dept. of Neurology, 246 Clayton Rd, Clayton - Victoria
Recruitment postcode(s) [1] 0 0
NSW 2050 - Camperdown
Recruitment postcode(s) [2] 0 0
NSW 2010 - Sydney
Recruitment postcode(s) [3] 0 0
3050 - Victoria
Recruitment postcode(s) [4] 0 0
3168 - Victoria
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Alabama
Country [2] 0 0
United States of America
State/province [2] 0 0
Arizona
Country [3] 0 0
United States of America
State/province [3] 0 0
California
Country [4] 0 0
United States of America
State/province [4] 0 0
Colorado
Country [5] 0 0
United States of America
State/province [5] 0 0
Connecticut
Country [6] 0 0
United States of America
State/province [6] 0 0
Florida
Country [7] 0 0
United States of America
State/province [7] 0 0
Illinois
Country [8] 0 0
United States of America
State/province [8] 0 0
Iowa
Country [9] 0 0
United States of America
State/province [9] 0 0
Kentucky
Country [10] 0 0
United States of America
State/province [10] 0 0
Maryland
Country [11] 0 0
United States of America
State/province [11] 0 0
Massachusetts
Country [12] 0 0
United States of America
State/province [12] 0 0
Michigan
Country [13] 0 0
United States of America
State/province [13] 0 0
Mississippi
Country [14] 0 0
United States of America
State/province [14] 0 0
Missouri
Country [15] 0 0
United States of America
State/province [15] 0 0
New York
Country [16] 0 0
United States of America
State/province [16] 0 0
North Carolina
Country [17] 0 0
United States of America
State/province [17] 0 0
Ohio
Country [18] 0 0
United States of America
State/province [18] 0 0
Oregon
Country [19] 0 0
United States of America
State/province [19] 0 0
Pennsylvania
Country [20] 0 0
United States of America
State/province [20] 0 0
South Carolina
Country [21] 0 0
United States of America
State/province [21] 0 0
Texas
Country [22] 0 0
United States of America
State/province [22] 0 0
Virginia
Country [23] 0 0
United States of America
State/province [23] 0 0
Wisconsin
Country [24] 0 0
Canada
State/province [24] 0 0
Alberta
Country [25] 0 0
Canada
State/province [25] 0 0
British Columbia
Country [26] 0 0
Canada
State/province [26] 0 0
Ontario
Country [27] 0 0
Canada
State/province [27] 0 0
Quebec
Country [28] 0 0
France
State/province [28] 0 0
Cedex
Country [29] 0 0
Germany
State/province [29] 0 0
Dresden
Country [30] 0 0
Germany
State/province [30] 0 0
Freiburg
Country [31] 0 0
Germany
State/province [31] 0 0
Greifswald
Country [32] 0 0
Germany
State/province [32] 0 0
Halle
Country [33] 0 0
Germany
State/province [33] 0 0
Hamburg
Country [34] 0 0
Netherlands
State/province [34] 0 0
Nieuwegein
Country [35] 0 0
Spain
State/province [35] 0 0
Badalona
Country [36] 0 0
Spain
State/province [36] 0 0
Barcelona
Country [37] 0 0
Switzerland
State/province [37] 0 0
Basel
Country [38] 0 0
Switzerland
State/province [38] 0 0
Lausanne

Funding & Sponsors
Primary sponsor type
Other
Name
Joseph Broderick
Address
Country
Other collaborator category [1] 0 0
Government body
Name [1] 0 0
National Institute of Neurological Disorders and Stroke (NINDS)
Address [1] 0 0
Country [1] 0 0
Other collaborator category [2] 0 0
Other
Name [2] 0 0
Medical University of South Carolina
Address [2] 0 0
Country [2] 0 0
Other collaborator category [3] 0 0
Other
Name [3] 0 0
University of Calgary
Address [3] 0 0
Country [3] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
The purpose of this study is to compare two different treatment approaches to recanalization started within 3 hours of symptom onset-combined intravenous (IV) and endovascular therapy and standard intravenous (IV) rt-PA alone.
Trial website
https://clinicaltrials.gov/study/NCT00359424
Trial related presentations / publications
van der Ende NA, Roozenbeek B, Broderick JP, Khatri P, Lingsma HF, Dippel DW. Blinding of outcome assessors and its association with outcome in a randomized open-label stroke trial. Int J Stroke. 2023 Jun;18(5):562-568. doi: 10.1177/17474930221131706. Epub 2022 Oct 19.
Chalos V, van der Ende NAM, Lingsma HF, Mulder MJHL, Venema E, Dijkland SA, Berkhemer OA, Yoo AJ, Broderick JP, Palesch YY, Yeatts SD, Roos YBWEM, van Oostenbrugge RJ, van Zwam WH, Majoie CBLM, van der Lugt A, Roozenbeek B, Dippel DWJ; MR CLEAN Investigators. National Institutes of Health Stroke Scale: An Alternative Primary Outcome Measure for Trials of Acute Treatment for Ischemic Stroke. Stroke. 2020 Jan;51(1):282-290. doi: 10.1161/STROKEAHA.119.026791. Epub 2019 Dec 4.
Simpson KN, Simpson AN, Mauldin PD, Palesch YY, Yeatts SD, Kleindorfer D, Tomsick TA, Foster LD, Demchuk AM, Khatri P, Hill MD, Jauch EC, Jovin TG, Yan B, von Kummer R, Molina CA, Goyal M, Schonewille WJ, Mazighi M, Engelter ST, Anderson C, Spilker J, Carrozzella J, Ryckborst KJ, Janis LS, Broderick JP; Interventional Management of Stroke (IMS) III Investigators. Observed Cost and Variations in Short Term Cost-Effectiveness of Therapy for Ischemic Stroke in Interventional Management of Stroke (IMS) III. J Am Heart Assoc. 2017 May 8;6(5):e004513. doi: 10.1161/JAHA.116.004513.
Venema E, Mulder MJHL, Roozenbeek B, Broderick JP, Yeatts SD, Khatri P, Berkhemer OA, Emmer BJ, Roos YBWEM, Majoie CBLM, van Oostenbrugge RJ, van Zwam WH, van der Lugt A, Steyerberg EW, Dippel DWJ, Lingsma HF. Selection of patients for intra-arterial treatment for acute ischaemic stroke: development and validation of a clinical decision tool in two randomised trials. BMJ. 2017 May 3;357:j1710. doi: 10.1136/bmj.j1710.
Mulder MJ, Venema E, Roozenbeek B, Broderick JP, Yeatts SD, Khatri P, Berkhemer OA, Roos YB, Majoie CB, van Oostenbrugge RJ, van Zwam WH, van der Lugt A, Steyerberg EW, Dippel DW, Lingsma HF. Towards personalised intra-arterial treatment of patients with acute ischaemic stroke: a study protocol for development and validation of a clinical decision aid. BMJ Open. 2017 Mar 22;7(3):e013699. doi: 10.1136/bmjopen-2016-013699.
Broderick JP, Berkhemer OA, Palesch YY, Dippel DW, Foster LD, Roos YB, van der Lugt A, Tomsick TA, Majoie CB, van Zwam WH, Demchuk AM, van Oostenbrugge RJ, Khatri P, Lingsma HF, Hill MD, Roozenbeek B, Jauch EC, Jovin TG, Yan B, von Kummer R, Molina CA, Goyal M, Schonewille WJ, Mazighi M, Engelter ST, Anderson CS, Spilker J, Carrozzella J, Ryckborst KJ, Janis LS, Simpson KN; IMS III Investigators; MR CLEAN Investigators. Endovascular Therapy Is Effective and Safe for Patients With Severe Ischemic Stroke: Pooled Analysis of Interventional Management of Stroke III and Multicenter Randomized Clinical Trial of Endovascular Therapy for Acute Ischemic Stroke in the Netherlands Data. Stroke. 2015 Dec;46(12):3416-22. doi: 10.1161/STROKEAHA.115.011397. Epub 2015 Oct 20. Erratum In: Stroke. 2016 Jan;47(1):e21. doi: 10.1161/STR.0000000000000091. IMS II [corrected to IMS III Investigators].
Abou-Chebl A, Yeatts SD, Yan B, Cockroft K, Goyal M, Jovin T, Khatri P, Meyers P, Spilker J, Sugg R, Wartenberg KE, Tomsick T, Broderick J, Hill MD. Impact of General Anesthesia on Safety and Outcomes in the Endovascular Arm of Interventional Management of Stroke (IMS) III Trial. Stroke. 2015 Aug;46(8):2142-8. doi: 10.1161/STROKEAHA.115.008761. Epub 2015 Jul 2.
Al-Ali F, Elias JJ, Tomsick TA, Liebeskind DS, Broderick JP; IMS Study Groups. Relative Influence of Capillary Index Score, Revascularization, and Time on Stroke Outcomes From the Interventional Management of Stroke III Trial. Stroke. 2015 Jun;46(6):1590-4. doi: 10.1161/STROKEAHA.115.009066. Epub 2015 May 7.
Palesch YY, Yeatts SD, Tomsick TA, Foster LD, Demchuk AM, Khatri P, Hill MD, Jauch EC, Jovin TG, Yan B, von Kummer R, Molina CA, Goyal M, Schonewille WJ, Mazighi M, Engelter ST, Anderson C, Spilker J, Carrozzella J, Ryckborst KJ, Janis LS, Simpson A, Simpson KN, Broderick JP; Interventional Management of Stroke III Investigators. Twelve-Month Clinical and Quality-of-Life Outcomes in the Interventional Management of Stroke III Trial. Stroke. 2015 May;46(5):1321-7. doi: 10.1161/STROKEAHA.115.009180. Epub 2015 Apr 9.
Menon BK, Qazi E, Nambiar V, Foster LD, Yeatts SD, Liebeskind D, Jovin TG, Goyal M, Hill MD, Tomsick TA, Broderick JP, Demchuk AM; Interventional Management of Stroke III Investigators. Differential Effect of Baseline Computed Tomographic Angiography Collaterals on Clinical Outcome in Patients Enrolled in the Interventional Management of Stroke III Trial. Stroke. 2015 May;46(5):1239-44. doi: 10.1161/STROKEAHA.115.009009. Epub 2015 Mar 19.
Tomsick TA, Yeatts SD, Liebeskind DS, Carrozzella J, Foster L, Goyal M, von Kummer R, Hill MD, Demchuk AM, Jovin T, Yan B, Zaidat OO, Schonewille W, Engelter S, Martin R, Khatri P, Spilker J, Palesch YY, Broderick JP; IMS III Investigators. Endovascular revascularization results in IMS III: intracranial ICA and M1 occlusions. J Neurointerv Surg. 2015 Nov;7(11):795-802. doi: 10.1136/neurintsurg-2014-011318. Epub 2014 Oct 23.
Simpson KN, Simpson AN, Mauldin PD, Hill MD, Yeatts SD, Spilker JA, Foster LD, Khatri P, Martin R, Jauch EC, Kleindorfer D, Palesch YY, Broderick JP; IMS III Investigators. Drivers of costs associated with reperfusion therapy in acute stroke: the Interventional Management of Stroke III Trial. Stroke. 2014 Jun;45(6):1791-8. doi: 10.1161/STROKEAHA.113.003874. Epub 2014 May 13.
Goyal M, Almekhlafi MA, Fan L, Menon BK, Demchuk AM, Yeatts SD, Hill MD, Tomsick T, Khatri P, Zaidat OO, Jauch EC, Eesa M, Jovin TG, Broderick JP. Evaluation of interval times from onset to reperfusion in patients undergoing endovascular therapy in the Interventional Management of Stroke III trial. Circulation. 2014 Jul 15;130(3):265-72. doi: 10.1161/CIRCULATIONAHA.113.007826. Epub 2014 May 9.
Yeatts SD, Martin RH, Coffey CS, Lyden PD, Foster LD, Woolson RF, Broderick JP, Di Tullio MR, Jungreis CA, Palesch YY; IMS III Investigators. Challenges of decision making regarding futility in a randomized trial: the Interventional Management of Stroke III experience. Stroke. 2014 May;45(5):1408-14. doi: 10.1161/STROKEAHA.113.003925. Epub 2014 Apr 3.
Liebeskind DS, Tomsick TA, Foster LD, Yeatts SD, Carrozzella J, Demchuk AM, Jovin TG, Khatri P, von Kummer R, Sugg RM, Zaidat OO, Hussain SI, Goyal M, Menon BK, Al Ali F, Yan B, Palesch YY, Broderick JP; IMS III Investigators. Collaterals at angiography and outcomes in the Interventional Management of Stroke (IMS) III trial. Stroke. 2014 Mar;45(3):759-64. doi: 10.1161/STROKEAHA.113.004072. Epub 2014 Jan 28.
Hill MD, Demchuk AM, Goyal M, Jovin TG, Foster LD, Tomsick TA, von Kummer R, Yeatts SD, Palesch YY, Broderick JP; IMS3 Investigators. Alberta Stroke Program early computed tomography score to select patients for endovascular treatment: Interventional Management of Stroke (IMS)-III Trial. Stroke. 2014 Feb;45(2):444-9. doi: 10.1161/STROKEAHA.113.003580. Epub 2013 Dec 12.
Broderick JP, Palesch YY, Demchuk AM, Yeatts SD, Khatri P, Hill MD, Jauch EC, Jovin TG, Yan B, Silver FL, von Kummer R, Molina CA, Demaerschalk BM, Budzik R, Clark WM, Zaidat OO, Malisch TW, Goyal M, Schonewille WJ, Mazighi M, Engelter ST, Anderson C, Spilker J, Carrozzella J, Ryckborst KJ, Janis LS, Martin RH, Foster LD, Tomsick TA; Interventional Management of Stroke (IMS) III Investigators. Endovascular therapy after intravenous t-PA versus t-PA alone for stroke. N Engl J Med. 2013 Mar 7;368(10):893-903. doi: 10.1056/NEJMoa1214300. Epub 2013 Feb 7. Erratum In: N Engl J Med. 2013 Mar 28;368(13):1265.
Public notes

Contacts
Principal investigator
Name 0 0
Joseph P. Broderick, MD
Address 0 0
Primary Neurologist Investigator, University of Cincinnati Academic Health Center
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT00359424