Clinical trial NCT02318342: Assessment of TRanscathetEr and Surgical Aortic BiOprosthetic Valve Thrombosis and Its TrEatment With Anticoagulation
Official title: Assessment of TRanscathetEr and Surgical Aortic BiOprosthetic Valve Dysfunction With Multimodality Imaging and Its TrEatment With Anticoagulation
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Prosthetic Valve Thrombosis
Lead sponsor: Cedars-Sinai Medical Center
Sponsor class: OTHER
First posted: 2014-12-17
Enrollment: 3000
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This is a prospective study designed to evaluate the structural and functional integrity of transcatheter or surgical bioprosthetic valves with multimodality imaging. The study further aims to confirm resolution of the early bioprosthetic valve thrombotic changes with anticoagulation.

Detailed description: Patients with a history of bioprosthetic valve replacement undergo cardiac contrast CT imaging and transthoracic echocardiography to evaluate structural and functional integrity of the aortic valves. The imaging studies will be performed at least 48-hours after bioprosthetic valve replacement. Patients with prosthetic valve abnormalities suggestive of thrombus will be administered anticoagulation therapy, followed by repeat contrast CT of the chest and transthoracic imaging. Repeat imaging following 3 months of anticoagulation therapy is performed to evaluate the response to anticoagulation therapy. I

Eligibility criteria: Inclusion Criteria:

* Presence of transcatheter or surgical bioprosthetic aortic valve implanted at least 48 hours prior to enrollment
* Age 18 years or older
* Ability to provide informed consent and follow-up with protocol procedures.

Exclusion Criteria:

* Renal insufficiency (creatinine \> 1.5 mg/dL)
* Known allergy to iodinated contrast agents

Primary outcomes:
measure: Frequency of patients with structural/functional abnormalities of bioprosthetic valves
timeFrame: 3 months
Secondary outcomes:
Other outcomes:
measure: Percentage of patients with resolution of bioprosthetic valve thrombotic lesions with anticoagulation
timeFrame: 3 months
Locations:
city: Los Angeles
country: United States
facility: Cedars-Sinai Medical Center
state: California
Study officials:
affiliation: Cedars-Sinai Medical Center, Los Angeles, California
name: Raj Makkar, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Makkar RR, Fontana G, Jilaihawi H, Chakravarty T, Kofoed KF, De Backer O, Asch FM, Ruiz CE, Olsen NT, Trento A, Friedman J, Berman D, Cheng W, Kashif M, Jelnin V, Kliger CA, Guo H, Pichard AD, Weissman NJ, Kapadia S, Manasse E, Bhatt DL, Leon MB, Sondergaard L. Possible Subclinical Leaflet Thrombosis in Bioprosthetic Aortic Valves. N Engl J Med. 2015 Nov 19;373(21):2015-24. doi: 10.1056/NEJMoa1509233. Epub 2015 Oct 5.
citation: Chakravarty T, Sondergaard L, Friedman J, De Backer O, Berman D, Kofoed KF, Jilaihawi H, Shiota T, Abramowitz Y, Jorgensen TH, Rami T, Israr S, Fontana G, de Knegt M, Fuchs A, Lyden P, Trento A, Bhatt DL, Leon MB, Makkar RR; RESOLVE; SAVORY Investigators. Subclinical leaflet thrombosis in surgical and transcatheter bioprosthetic aortic valves: an observational study. Lancet. 2017 Jun 17;389(10087):2383-2392. doi: 10.1016/S0140-6736(17)30757-2. Epub 2017 Mar 19.
citation: Raschpichler M, Flint N, Yoon SH, Kaewkes D, Patel C, Singh C, Patel V, Kashif M, Borger MA, Chakravarty T, Makkar R. Commissural Alignment After Balloon-Expandable Transcatheter Aortic Valve Replacement Is Associated With Improved Hemodynamic Outcomes. JACC Cardiovasc Interv. 2022 Jun 13;15(11):1126-1136. doi: 10.1016/j.jcin.2022.04.006.
citation: Ochiai T, Oakley L, Sekhon N, Komatsu I, Flint N, Kaewkes D, Yoon SH, Raschpichler M, Patel V, Tiwana R, Enta Y, Mahani S, Kim Y, Stegic J, Chakravarty T, Nakamura M, Cheng W, Makkar R. Risk of Coronary Obstruction Due to Sinus Sequestration in Redo Transcatheter Aortic Valve Replacement. JACC Cardiovasc Interv. 2020 Nov 23;13(22):2617-2627. doi: 10.1016/j.jcin.2020.09.022.
citation: Ochiai T, Chakravarty T, Yoon SH, Kaewkes D, Flint N, Patel V, Mahani S, Tiwana R, Sekhon N, Nakamura M, Cheng W, Makkar R. Coronary Access After TAVR. JACC Cardiovasc Interv. 2020 Mar 23;13(6):693-705. doi: 10.1016/j.jcin.2020.01.216.