NCT04269447

Brief Summary

The overall objective of the POP-STAR project is individualized surveillance for patients diagnosed with abdominal aortic aneurysms by means of more precise, patient-specific AAA growth prediction.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
400

participants targeted

Target at P75+ for all trials

Timeline
31mo left

Started Nov 2019

Longer than P75 for all trials

Geographic Reach
1 country

2 active sites

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress72%
Nov 2019Dec 2028

Study Start

First participant enrolled

November 18, 2019

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

December 5, 2019

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 13, 2020

Completed
7.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2028

Last Updated

April 8, 2026

Status Verified

April 1, 2025

Enrollment Period

8 years

First QC Date

December 5, 2019

Last Update Submit

April 2, 2026

Conditions

Keywords

Growth PredictionRupture Risk PredictionImagingAortic diseaseVascular surgeryVascular diseaseCardiovascular disease

Outcome Measures

Primary Outcomes (2)

  • Aneurysm expansion rate

    Comparison of correctness of predicted growth (diameter vs ASI)

    Primary outcome evaluated at two years of follow-up.

  • Aneurysm expansion rate

    Assessment if a more correct predicted growth alters surveillance (ASI vs diameter)

    Primary outcome second analysis at two years follow-up.

Interventions

Structured imaging follow-up protocol with ultrasound (US) and computed tomography (CT) examinations as compared to current standard surveillance protocol for individualized estimations of AAA growth.

Also known as: Finite element analysis (FEA)

Eligibility Criteria

Age50 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All men and women diagnosed with an intact abdominal aortic aneurysm (AAA) and who fulfill the inclusion diameter criterion and none of the exclusion criteria are verified at the Department of Vascular Surgery, Karolinska University Hospital, Solna, and consecutively invited to participate.

You may qualify if:

  • Abdominal aortic aneurysm 35-49 mm in men
  • Abdominal aortic aneurysm 30-49 mm in women

You may not qualify if:

  • Previous aortic or iliac surgery
  • Present comorbidities with less than 2-years life expectancy
  • Unable or unwilling to give informed consent
  • Computed tomography examination with intravenous contrast contraindicated due to renal insufficiency (defined as creatinine/eGFR level XXX)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Department of Vascular Surgery, Karolinska University Hospital

Solna, Stockholm County, 171 76, Sweden

Location

Karolinska University Hospital

Stockholm, 17176, Sweden

Location

Related Publications (12)

  • Chaikof EL, Dalman RL, Eskandari MK, Jackson BM, Lee WA, Mansour MA, Mastracci TM, Mell M, Murad MH, Nguyen LL, Oderich GS, Patel MS, Schermerhorn ML, Starnes BW. The Society for Vascular Surgery practice guidelines on the care of patients with an abdominal aortic aneurysm. J Vasc Surg. 2018 Jan;67(1):2-77.e2. doi: 10.1016/j.jvs.2017.10.044.

    PMID: 29268916BACKGROUND
  • Wanhainen A, Hultgren R, Linne A, Holst J, Gottsater A, Langenskiold M, Smidfelt K, Bjorck M, Svensjo S; Swedish Aneurysm Screening Study Group (SASS). Outcome of the Swedish Nationwide Abdominal Aortic Aneurysm Screening Program. Circulation. 2016 Oct 18;134(16):1141-1148. doi: 10.1161/CIRCULATIONAHA.116.022305. Epub 2016 Sep 14.

    PMID: 27630132BACKGROUND
  • Wanhainen A, Verzini F, Van Herzeele I, Allaire E, Bown M, Cohnert T, Dick F, van Herwaarden J, Karkos C, Koelemay M, Kolbel T, Loftus I, Mani K, Melissano G, Powell J, Szeberin Z, Esvs Guidelines Committee, de Borst GJ, Chakfe N, Debus S, Hinchliffe R, Kakkos S, Koncar I, Kolh P, Lindholt JS, de Vega M, Vermassen F, Document Reviewers, Bjorck M, Cheng S, Dalman R, Davidovic L, Donas K, Earnshaw J, Eckstein HH, Golledge J, Haulon S, Mastracci T, Naylor R, Ricco JB, Verhagen H. Editor's Choice - European Society for Vascular Surgery (ESVS) 2019 Clinical Practice Guidelines on the Management of Abdominal Aorto-iliac Artery Aneurysms. Eur J Vasc Endovasc Surg. 2019 Jan;57(1):8-93. doi: 10.1016/j.ejvs.2018.09.020. Epub 2018 Dec 5. No abstract available.

    PMID: 30528142BACKGROUND
  • Sweeting MJ, Thompson SG, Brown LC, Powell JT; RESCAN collaborators. Meta-analysis of individual patient data to examine factors affecting growth and rupture of small abdominal aortic aneurysms. Br J Surg. 2012 May;99(5):655-65. doi: 10.1002/bjs.8707. Epub 2012 Mar 5.

    PMID: 22389113BACKGROUND
  • Polzer S, Gasser TC, Vlachovsky R, Kubicek L, Lambert L, Man V, Novak K, Slazansky M, Bursa J, Staffa R. Biomechanical indices are more sensitive than diameter in predicting rupture of asymptomatic abdominal aortic aneurysms. J Vasc Surg. 2020 Feb;71(2):617-626.e6. doi: 10.1016/j.jvs.2019.03.051. Epub 2019 Jun 5.

    PMID: 31176634BACKGROUND
  • Polzer S, Gasser TC. Biomechanical rupture risk assessment of abdominal aortic aneurysms based on a novel probabilistic rupture risk index. J R Soc Interface. 2015 Dec 6;12(113):20150852. doi: 10.1098/rsif.2015.0852.

    PMID: 26631334BACKGROUND
  • Siika A, Lindquist Liljeqvist M, Zommorodi S, Nilsson O, Andersson P, Gasser TC, Roy J, Hultgren R. A large proportion of patients with small ruptured abdominal aortic aneurysms are women and have chronic obstructive pulmonary disease. PLoS One. 2019 May 28;14(5):e0216558. doi: 10.1371/journal.pone.0216558. eCollection 2019.

    PMID: 31136570BACKGROUND
  • Zommorodi S, Roy J, Steuer J, Hultgren R. High proportion of known abdominal aortic aneurysm in patients with rupture indicates surveillance deficiency. J Vasc Surg. 2016 Oct;64(4):949-955.e1. doi: 10.1016/j.jvs.2016.04.007.

    PMID: 27666443BACKGROUND
  • Brown LC, Thompson SG, Greenhalgh RM, Powell JT; UK Small Aneurysm Trial Participants. Fit patients with small abdominal aortic aneurysms (AAAs) do not benefit from early intervention. J Vasc Surg. 2008 Dec;48(6):1375-81. doi: 10.1016/j.jvs.2008.07.014.

    PMID: 19118733BACKGROUND
  • Singh K, Bonaa KH, Jacobsen BK, Bjork L, Solberg S. Prevalence of and risk factors for abdominal aortic aneurysms in a population-based study : The Tromso Study. Am J Epidemiol. 2001 Aug 1;154(3):236-44. doi: 10.1093/aje/154.3.236.

    PMID: 11479188BACKGROUND
  • Scott RA, Bridgewater SG, Ashton HA. Randomized clinical trial of screening for abdominal aortic aneurysm in women. Br J Surg. 2002 Mar;89(3):283-5. doi: 10.1046/j.0007-1323.2001.02014.x.

    PMID: 11872050BACKGROUND
  • Sakalihasan N, Michel JB, Katsargyris A, Kuivaniemi H, Defraigne JO, Nchimi A, Powell JT, Yoshimura K, Hultgren R. Abdominal aortic aneurysms. Nat Rev Dis Primers. 2018 Oct 18;4(1):34. doi: 10.1038/s41572-018-0030-7.

    PMID: 30337540BACKGROUND

MeSH Terms

Conditions

Aortic Aneurysm, AbdominalRuptureAortic AneurysmAneurysmAortic DiseasesVascular DiseasesCardiovascular Diseases

Condition Hierarchy (Ancestors)

Wounds and Injuries

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
5 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Adjunct Professor, Senior Consultant Vascular Surgery

Study Record Dates

First Submitted

December 5, 2019

First Posted

February 13, 2020

Study Start

November 18, 2019

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2028

Last Updated

April 8, 2026

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations