Improving the Stewardship of Diagnostic Imaging Resources in Alberta Emergency Departments

NCT02410941 | Unknown DMC

• 1 other identifier: 10007399
• Study Type: interventional
• Target: 52,058
• Locations: 1 country
• Sites: 16

Brief Summary

Utilization of diagnostic imaging in the Emergency Department has increased dramatically over the past two decades, driven by an increased availability of advanced imaging, legal pressures to exclude serious diagnoses in low-risk patients, patient expectations, and the tendency to associate more testing with a higher quality of care. However, this rise in the use of diagnostic imaging, particularly in low-risk patients, may not be taking into account the risk of radiation exposure to patients, or the impact on finite health system resources. The objective of this project is to improve the appropriateness of CT imaging in Alberta Emergency Departments by advancing awareness of, and adherence to, evidence-based guidelines for CT imaging of patients with mild traumatic brain injury (MTBI) and suspected pulmonary embolism (PE). These two clinical scenarios have been selected because of evidence of significant variation in imaging practices across Alberta, and the robust evidence base that exists to guide CT imaging decisions such as the Canadian CT Head Rule and the Pulmonary Embolism Rule Out Criteria.

Conditions

Brain Injuries; Pulmonary Embolism

Keywords

Randomized controlled trial; Practice management; tomography, x-ray computed/adverse effects; Clinical decision support; Computerized clinical decision support; Decision support systems, clinical; Health Expenditures; Physician's practice patterns; Unnecessary Procedures/economics; Physician's Practice Patterns/economics; Diffusion of innovation; Decision Support Models; Clinical Prediction Rules

Outcome Measures

Primary Outcomes (2)

• Proportion of patients with mild traumatic brain injury who undergo a CT head

  All presenting patients for a period of 30 months (15 months pre-intervention administrative data, and 15 months of administrative date during the intervention)/

• Proportion of patients with suspected Pulmonary Embolism who undergo a CTPA scan

  All presenting patients for a period of 30 months (15 months pre-intervention administrative data, and 15 months of administrative date during the intervention)

Secondary Outcomes (3)

• Proportion of patients with mild traumatic brain injury who undergo a CT Head for which a CT Head is recommended by the Canadian CT Head Rule

  All presenting patients for a period of 30 months (15 months pre-intervention administrative data, and 15 months of administrative date during the intervention)

• Proportion of patients with suspected pulmonary embolism who undergo a CTPA scan for which a CTPA scan is recommended after applying the Well's Score, the Pulmonary Embolism Rule-Out Criteria (PERC), and receiving D-Dimer test results.

  All presenting patients for a period of 30 months (15 months pre-intervention administrative data, and 15 months of administrative date during the intervention)

• Proportion of patients who return to the ED within 30 days with the same presenting complaint and undergo a CT Head or CTPA

  Patients will be followed from presentation to the ED up until 30 days post-discharge from the ED

Study Arms (2)

Decision-support for MTBI

EXPERIMENTAL

Clinical decision support will be provided on ordering CT scans for patients suspected to have Minor Traumatic Brain Injury (MTBI) to treating physicians randomized into this group. This arm will also serve as a control for the PE group.

Behavioral: Clinical decision support

Decision-support for PE

EXPERIMENTAL

Clinical decision support will be provided on ordering CT scans for patients suspected to have Pulmonary Embolism (PE) to treating physicians randomized into this group. This arm will also serve as a control for the MTBI group.

Behavioral: Clinical decision support

Interventions

Clinical decision support BEHAVIORAL

Establish evidence-based standardized clinical pathways implemented by local communities of practice focused on imaging utilization in ED settings as models of participatory research and integrated knowledge translation.

Decision-support for MTBI; Decision-support for PE

Eligibility Criteria

• Age: 16 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients: All patients presenting to pre-determined Alberta emergency departments with head injuries and suspected pulmonary embolism will be targeted for evaluation of CT appropriateness. For the CT Head, patients \>16 with a CEDIS Triage code of "Head Injury" will be eligible. For the CT Pulmonary Angiography (CTPA) patients age 18-85 with CEDIS Triage codes of "Chest Pain (Noncardiac Features)", "Shortness of Breath", or "Syncope/Presyncope" will be eligible.
• Health Professionals: Engagement in this project will fall within the professional responsibilities and mandate for many if not all of these individuals will be supported by zone leadership in each domain. The interventions proposed are educational and voluntary in nature; as there are clinical situations in which clinical judgement is expected to supersede clinical guidelines, and therefore no coercive measures will be taken to impose universal physician compliance.

You may not qualify if:

• Patients under 16 years of age for CT head, under 18 or over 85 years of age for CT pulmonary angiography.

Sponsors & Collaborators

• University of Calgary: lead
• Alberta Innovates Health Solutions: collaborator

Study Sites (16)

Foothills Medical Centre - C231

Calgary, Alberta, T2N 2T9, Canada

RECRUITING

Peter Lougheed Centre

Calgary, Alberta, Canada

RECRUITING

Sheldom M. Chumir Centre

Calgary, Alberta, Canada

RECRUITING

South Health Campus

Calgary, Alberta, Canada

RECRUITING

Grey Nuns CommunityHospital

Edmonton, Alberta, Canada

RECRUITING

Royal Alexandra Hospital

Edmonton, Alberta, Canada

RECRUITING

University of Alberta Hospital

Edmonton, Alberta, Canada

RECRUITING

Misericordia Community Hospital

Edmontyon, Alberta, Canada

RECRUITING

Northern Lights Regional Hospital

Fort McMurray, Alberta, Canada

RECRUITING

Fort Saskatchewan Health Centre

Ft Saskatchewan, Alberta, Canada

RECRUITING

Queen Elizabeth II Hospital

Grande Prairie, Alberta, Canada

RECRUITING

Chinook Regional Hospital

Lethbridge, Alberta, Canada

RECRUITING

Medicine Hat Regional Hospital

Medicine Hat, Alberta, Canada

RECRUITING

Red Deer Regional Hospital

Red Deer, Alberta, Canada

RECRUITING

Strathcona Community Hospital

Sherwood Park, Alberta, Canada

RECRUITING

Sturgeon Community Hospital

St. Albert, Alberta, Canada

RECRUITING

Related Publications (47)

• Kocher KE, Meurer WJ, Fazel R, Scott PA, Krumholz HM, Nallamothu BK. National trends in use of computed tomography in the emergency department. Ann Emerg Med. 2011 Nov;58(5):452-62.e3. doi: 10.1016/j.annemergmed.2011.05.020. Epub 2011 Aug 11.

  PMID: 21835499 BACKGROUND

• Baker LC, Atlas SW, Afendulis CC. Expanded use of imaging technology and the challenge of measuring value. Health Aff (Millwood). 2008 Nov-Dec;27(6):1467-78. doi: 10.1377/hlthaff.27.6.1467.

  PMID: 18997202 BACKGROUND

• Studdert DM, Mello MM, Sage WM, DesRoches CM, Peugh J, Zapert K, Brennan TA. Defensive medicine among high-risk specialist physicians in a volatile malpractice environment. JAMA. 2005 Jun 1;293(21):2609-17. doi: 10.1001/jama.293.21.2609.

  PMID: 15928282 BACKGROUND

• Schattner A. Angst-driven medicine? QJM. 2009 Jan;102(1):75-8. doi: 10.1093/qjmed/hcn164.

  PMID: 19095678 BACKGROUND

• Bishop TF, Federman AD, Keyhani S. Physicians' views on defensive medicine: a national survey. Arch Intern Med. 2010 Jun 28;170(12):1081-3. doi: 10.1001/archinternmed.2010.155. No abstract available.

  PMID: 20585077 BACKGROUND

• Miller P, Kendrick D, Bentley E, Fielding K. Cost-effectiveness of lumbar spine radiography in primary care patients with low back pain. Spine (Phila Pa 1976). 2002 Oct 15;27(20):2291-7. doi: 10.1097/00007632-200210150-00021.

  PMID: 12394910 BACKGROUND

• Berdahl CT, Vermeulen MJ, Larson DB, Schull MJ. Emergency department computed tomography utilization in the United States and Canada. Ann Emerg Med. 2013 Nov;62(5):486-494.e3. doi: 10.1016/j.annemergmed.2013.02.018. Epub 2013 May 14.

  PMID: 23683773 BACKGROUND

• Brenner DJ, Hall EJ. Computed tomography--an increasing source of radiation exposure. N Engl J Med. 2007 Nov 29;357(22):2277-84. doi: 10.1056/NEJMra072149. No abstract available.

  PMID: 18046031 BACKGROUND

• Brenner DJ, Hricak H. Radiation exposure from medical imaging: time to regulate? JAMA. 2010 Jul 14;304(2):208-9. doi: 10.1001/jama.2010.973. No abstract available.

  PMID: 20628137 BACKGROUND

• Berrington de Gonzalez A, Mahesh M, Kim KP, Bhargavan M, Lewis R, Mettler F, Land C. Projected cancer risks from computed tomographic scans performed in the United States in 2007. Arch Intern Med. 2009 Dec 14;169(22):2071-7. doi: 10.1001/archinternmed.2009.440.

  PMID: 20008689 BACKGROUND

• Smith-Bindman R, Lipson J, Marcus R, Kim KP, Mahesh M, Gould R, Berrington de Gonzalez A, Miglioretti DL. Radiation dose associated with common computed tomography examinations and the associated lifetime attributable risk of cancer. Arch Intern Med. 2009 Dec 14;169(22):2078-86. doi: 10.1001/archinternmed.2009.427.

  PMID: 20008690 BACKGROUND

• Stiell IG, Greenberg GH, McKnight RD, Nair RC, McDowell I, Reardon M, Stewart JP, Maloney J. Decision rules for the use of radiography in acute ankle injuries. Refinement and prospective validation. JAMA. 1993 Mar 3;269(9):1127-32. doi: 10.1001/jama.269.9.1127.

  PMID: 8433468 BACKGROUND

• Stiell IG, Greenberg GH, Wells GA, McDowell I, Cwinn AA, Smith NA, Cacciotti TF, Sivilotti ML. Prospective validation of a decision rule for the use of radiography in acute knee injuries. JAMA. 1996 Feb 28;275(8):611-5.

  PMID: 8594242 BACKGROUND

• Hoffman JR, Mower WR, Wolfson AB, Todd KH, Zucker MI. Validity of a set of clinical criteria to rule out injury to the cervical spine in patients with blunt trauma. National Emergency X-Radiography Utilization Study Group. N Engl J Med. 2000 Jul 13;343(2):94-9. doi: 10.1056/NEJM200007133430203.

  PMID: 10891516 BACKGROUND

• Stiell IG, Wells GA, Vandemheen KL, Clement CM, Lesiuk H, De Maio VJ, Laupacis A, Schull M, McKnight RD, Verbeek R, Brison R, Cass D, Dreyer J, Eisenhauer MA, Greenberg GH, MacPhail I, Morrison L, Reardon M, Worthington J. The Canadian C-spine rule for radiography in alert and stable trauma patients. JAMA. 2001 Oct 17;286(15):1841-8. doi: 10.1001/jama.286.15.1841.

  PMID: 11597285 BACKGROUND

• Kuppermann N, Holmes JF, Dayan PS, Hoyle JD Jr, Atabaki SM, Holubkov R, Nadel FM, Monroe D, Stanley RM, Borgialli DA, Badawy MK, Schunk JE, Quayle KS, Mahajan P, Lichenstein R, Lillis KA, Tunik MG, Jacobs ES, Callahan JM, Gorelick MH, Glass TF, Lee LK, Bachman MC, Cooper A, Powell EC, Gerardi MJ, Melville KA, Muizelaar JP, Wisner DH, Zuspan SJ, Dean JM, Wootton-Gorges SL; Pediatric Emergency Care Applied Research Network (PECARN). Identification of children at very low risk of clinically-important brain injuries after head trauma: a prospective cohort study. Lancet. 2009 Oct 3;374(9696):1160-70. doi: 10.1016/S0140-6736(09)61558-0. Epub 2009 Sep 14.

  PMID: 19758692 BACKGROUND

• Osmond MH, Klassen TP, Wells GA, Correll R, Jarvis A, Joubert G, Bailey B, Chauvin-Kimoff L, Pusic M, McConnell D, Nijssen-Jordan C, Silver N, Taylor B, Stiell IG; Pediatric Emergency Research Canada (PERC) Head Injury Study Group. CATCH: a clinical decision rule for the use of computed tomography in children with minor head injury. CMAJ. 2010 Mar 9;182(4):341-8. doi: 10.1503/cmaj.091421. Epub 2010 Feb 8.

  PMID: 20142371 BACKGROUND

• Stiell IG, Wells GA, Vandemheen K, Clement C, Lesiuk H, Laupacis A, McKnight RD, Verbeek R, Brison R, Cass D, Eisenhauer ME, Greenberg G, Worthington J. The Canadian CT Head Rule for patients with minor head injury. Lancet. 2001 May 5;357(9266):1391-6. doi: 10.1016/s0140-6736(00)04561-x.

  PMID: 11356436 BACKGROUND

• Stiell IG, Clement CM, Rowe BH, Schull MJ, Brison R, Cass D, Eisenhauer MA, McKnight RD, Bandiera G, Holroyd B, Lee JS, Dreyer J, Worthington JR, Reardon M, Greenberg G, Lesiuk H, MacPhail I, Wells GA. Comparison of the Canadian CT Head Rule and the New Orleans Criteria in patients with minor head injury. JAMA. 2005 Sep 28;294(12):1511-8. doi: 10.1001/jama.294.12.1511.

  PMID: 16189364 BACKGROUND

• Harnan SE, Pickering A, Pandor A, Goodacre SW. Clinical decision rules for adults with minor head injury: a systematic review. J Trauma. 2011 Jul;71(1):245-51. doi: 10.1097/TA.0b013e31820d090f.

  PMID: 21818031 BACKGROUND

• Wells PS, Anderson DR, Rodger M, Stiell I, Dreyer JF, Barnes D, Forgie M, Kovacs G, Ward J, Kovacs MJ. Excluding pulmonary embolism at the bedside without diagnostic imaging: management of patients with suspected pulmonary embolism presenting to the emergency department by using a simple clinical model and d-dimer. Ann Intern Med. 2001 Jul 17;135(2):98-107. doi: 10.7326/0003-4819-135-2-200107170-00010.

  PMID: 11453709 BACKGROUND

• Kline JA, Courtney DM, Kabrhel C, Moore CL, Smithline HA, Plewa MC, Richman PB, O'Neil BJ, Nordenholz K. Prospective multicenter evaluation of the pulmonary embolism rule-out criteria. J Thromb Haemost. 2008 May;6(5):772-80. doi: 10.1111/j.1538-7836.2008.02944.x. Epub 2008 Mar 3.

  PMID: 18318689 BACKGROUND

• Ceriani E, Combescure C, Le Gal G, Nendaz M, Perneger T, Bounameaux H, Perrier A, Righini M. Clinical prediction rules for pulmonary embolism: a systematic review and meta-analysis. J Thromb Haemost. 2010 May;8(5):957-70. doi: 10.1111/j.1538-7836.2010.03801.x. Epub 2010 Feb 2.

  PMID: 20149072 BACKGROUND

• Goldhaber SZ, Bounameaux H. Pulmonary embolism and deep vein thrombosis. Lancet. 2012 May 12;379(9828):1835-46. doi: 10.1016/S0140-6736(11)61904-1. Epub 2012 Apr 10.

  PMID: 22494827 BACKGROUND

• Singh B, Parsaik AK, Agarwal D, Surana A, Mascarenhas SS, Chandra S. Diagnostic accuracy of pulmonary embolism rule-out criteria: a systematic review and meta-analysis. Ann Emerg Med. 2012 Jun;59(6):517-20.e1-4. doi: 10.1016/j.annemergmed.2011.10.022. Epub 2011 Dec 15.

  PMID: 22177109 BACKGROUND

• Hayward RS, Guyatt GH, Moore KA, McKibbon KA, Carter AO. Canadian physicians' attitudes about and preferences regarding clinical practice guidelines. CMAJ. 1997 Jun 15;156(12):1715-23.

  PMID: 9220923 BACKGROUND

• Graham ID, Stiell IG, Laupacis A, O'Connor AM, Wells GA. Emergency physicians' attitudes toward and use of clinical decision rules for radiography. Acad Emerg Med. 1998 Feb;5(2):134-40. doi: 10.1111/j.1553-2712.1998.tb02598.x.

  PMID: 9492134 BACKGROUND

• Eagles D, Stiell IG, Clement CM, Brehaut J, Taljaard M, Kelly AM, Mason S, Kellermann A, Perry JJ. International survey of emergency physicians' awareness and use of the Canadian Cervical-Spine Rule and the Canadian Computed Tomography Head Rule. Acad Emerg Med. 2008 Dec;15(12):1256-61. doi: 10.1111/j.1553-2712.2008.00265.x. Epub 2008 Oct 17.

  PMID: 18945241 BACKGROUND

• Melnick ER, Szlezak CM, Bentley SK, Dziura JD, Kotlyar S, Post LA. CT overuse for mild traumatic brain injury. Jt Comm J Qual Patient Saf. 2012 Nov;38(11):483-9. doi: 10.1016/s1553-7250(12)38064-1.

  PMID: 23173394 BACKGROUND

• Stiell IG, Clement CM, Grimshaw JM, Brison RJ, Rowe BH, Lee JS, Shah A, Brehaut J, Holroyd BR, Schull MJ, McKnight RD, Eisenhauer MA, Dreyer J, Letovsky E, Rutledge T, Macphail I, Ross S, Perry JJ, Ip U, Lesiuk H, Bennett C, Wells GA. A prospective cluster-randomized trial to implement the Canadian CT Head Rule in emergency departments. CMAJ. 2010 Oct 5;182(14):1527-32. doi: 10.1503/cmaj.091974. Epub 2010 Aug 23.

  PMID: 20732978 BACKGROUND

• Graham ID, Stiell IG, Laupacis A, McAuley L, Howell M, Clancy M, Durieux P, Simon N, Emparanza JI, Aginaga JR, O'connor A, Wells G. Awareness and use of the Ottawa ankle and knee rules in 5 countries: can publication alone be enough to change practice? Ann Emerg Med. 2001 Mar;37(3):259-66. doi: 10.1067/mem.2001.113506.

  PMID: 11223761 BACKGROUND

• Brehaut JC, Stiell IG, Visentin L, Graham ID. Clinical decision rules "in the real world": how a widely disseminated rule is used in everyday practice. Acad Emerg Med. 2005 Oct;12(10):948-56. doi: 10.1197/j.aem.2005.04.024. Epub 2005 Sep 15.

  PMID: 16166599 BACKGROUND

• Brehaut JC, Stiell IG, Graham ID. Will a new clinical decision rule be widely used? The case of the Canadian C-spine rule. Acad Emerg Med. 2006 Apr;13(4):413-20. doi: 10.1197/j.aem.2005.11.080. Epub 2006 Mar 10.

  PMID: 16531607 BACKGROUND

• van Ravesteijn H, van Dijk I, Darmon D, van de Laar F, Lucassen P, Olde Hartman T, van Weel C, Speckens A. The reassuring value of diagnostic tests: a systematic review. Patient Educ Couns. 2012 Jan;86(1):3-8. doi: 10.1016/j.pec.2011.02.003. Epub 2011 Mar 6.

  PMID: 21382687 BACKGROUND

• Curran JA, Brehaut J, Patey AM, Osmond M, Stiell I, Grimshaw JM. Understanding the Canadian adult CT head rule trial: use of the theoretical domains framework for process evaluation. Implement Sci. 2013 Feb 21;8:25. doi: 10.1186/1748-5908-8-25.

  PMID: 23433082 BACKGROUND

• Ranmuthugala G, Plumb JJ, Cunningham FC, Georgiou A, Westbrook JI, Braithwaite J. How and why are communities of practice established in the healthcare sector? A systematic review of the literature. BMC Health Serv Res. 2011 Oct 14;11:273. doi: 10.1186/1472-6963-11-273.

  PMID: 21999305 BACKGROUND

• Fung-Kee-Fung M, Watters J, Crossley C, Goubanova E, Abdulla A, Stern H, Oliver TK. Regional collaborations as a tool for quality improvements in surgery: a systematic review of the literature. Ann Surg. 2009 Apr;249(4):565-72. doi: 10.1097/SLA.0b013e31819ec608.

  PMID: 19300234 BACKGROUND

• Li LC, Grimshaw JM, Nielsen C, Judd M, Coyte PC, Graham ID. Use of communities of practice in business and health care sectors: a systematic review. Implement Sci. 2009 May 17;4:27. doi: 10.1186/1748-5908-4-27.

  PMID: 19445723 BACKGROUND

• Barnett S, Jones SC, Bennett S, Iverson D, Bonney A. General practice training and virtual communities of practice - a review of the literature. BMC Fam Pract. 2012 Aug 21;13:87. doi: 10.1186/1471-2296-13-87.

  PMID: 22905827 BACKGROUND

• Perry JJ, Stiell IG. Impact of clinical decision rules on clinical care of traumatic injuries to the foot and ankle, knee, cervical spine, and head. Injury. 2006 Dec;37(12):1157-65. doi: 10.1016/j.injury.2006.07.028. Epub 2006 Oct 31.

  PMID: 17078955 BACKGROUND

• Stiell IG, Clement CM, Grimshaw J, Brison RJ, Rowe BH, Schull MJ, Lee JS, Brehaut J, McKnight RD, Eisenhauer MA, Dreyer J, Letovsky E, Rutledge T, MacPhail I, Ross S, Shah A, Perry JJ, Holroyd BR, Ip U, Lesiuk H, Wells GA. Implementation of the Canadian C-Spine Rule: prospective 12 centre cluster randomised trial. BMJ. 2009 Oct 29;339:b4146. doi: 10.1136/bmj.b4146.

  PMID: 19875425 BACKGROUND

• Atkins D, Best D, Briss PA, Eccles M, Falck-Ytter Y, Flottorp S, Guyatt GH, Harbour RT, Haugh MC, Henry D, Hill S, Jaeschke R, Leng G, Liberati A, Magrini N, Mason J, Middleton P, Mrukowicz J, O'Connell D, Oxman AD, Phillips B, Schunemann HJ, Edejer T, Varonen H, Vist GE, Williams JW Jr, Zaza S; GRADE Working Group. Grading quality of evidence and strength of recommendations. BMJ. 2004 Jun 19;328(7454):1490. doi: 10.1136/bmj.328.7454.1490.

  PMID: 15205295 BACKGROUND

• Grafstein E, Bullard MJ, Warren D, Unger B; CTAS National Working Group. Revision of the Canadian Emergency Department Information System (CEDIS) Presenting Complaint List version 1.1. CJEM. 2008 Mar;10(2):151-73. doi: 10.1017/s1481803500009878. No abstract available. English, French.

  PMID: 18371253 BACKGROUND

• Campbell MK, Thomson S, Ramsay CR, MacLennan GS, Grimshaw JM. Sample size calculator for cluster randomized trials. Comput Biol Med. 2004 Mar;34(2):113-25. doi: 10.1016/S0010-4825(03)00039-8.

  PMID: 14972631 BACKGROUND

• Boyle A, Santarius L, Maimaris C. Evaluation of the impact of the Canadian CT head rule on British practice. Emerg Med J. 2004 Jul;21(4):426-8.

  PMID: 15208223 BACKGROUND

• Sodickson A, Baeyens PF, Andriole KP, Prevedello LM, Nawfel RD, Hanson R, Khorasani R. Recurrent CT, cumulative radiation exposure, and associated radiation-induced cancer risks from CT of adults. Radiology. 2009 Apr;251(1):175-84. doi: 10.1148/radiol.2511081296.

  PMID: 19332852 BACKGROUND

• Andruchow JE, Grigat D, McRae AD, Innes G, Vatanpour S, Wang D, Taljaard M, Lang E. Decision support for computed tomography in the emergency department: a multicenter cluster-randomized controlled trial. CJEM. 2021 Sep;23(5):631-640. doi: 10.1007/s43678-021-00170-3. Epub 2021 Aug 5.

  PMID: 34351598 DERIVED

MeSH Terms

Conditions

Brain Injuries; Pulmonary Embolism

Condition Hierarchy (Ancestors)

Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Craniocerebral Trauma; Trauma, Nervous System; Wounds and Injuries; Lung Diseases; Respiratory Tract Diseases; Embolism; Embolism and Thrombosis; Vascular Diseases; Cardiovascular Diseases

Study Officials

• Eddy S. Lang, MD

  University of Calgary

  PRINCIPAL INVESTIGATOR

• Andrew McRae, MD

  University of Calgary

  STUDY DIRECTOR

• James Andruchow, MD

  University of Calgary

  STUDY DIRECTOR

• Grant Innes, MD

  University of Calgary

  STUDY DIRECTOR

Central Study Contacts

Daniel W. Grigat

CONTACT

(403) 618-7369; daniel.grigat@albertahealthservices.ca

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: HEALTH SERVICES RESEARCH
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Doctor, associate professor

Study Record Dates

• First Submitted: March 17, 2015
• First Posted: April 8, 2015
• Study Start: January 1, 2016
• Primary Completion: September 1, 2017
• Study Completion: September 1, 2017
• Last Updated: August 30, 2016

Record last verified: 2016-08

Locations

CA (16)