Clinical Trials Logo

Clinical Trial Summary

Cardiac amyloidosis is a restrictive cardiomyopathy with a potentially severe prognosis that can be life-threatening. It is linked in the vast majority of cases to a light chain deposition of immunoglobulin or transthyretin. Although myocardial involvement is predominant, other locations are possible: the atrioventricular conduction system, coronary arteries and valve leaflets. In systematic histological analyzes, deposits of amyloidosis infiltrating the aortic valve have been reported with a frequency of up to 74% for degenerative RA. The nature of these deposits has never been established because the immunostaining carried out all remained negative, probably due to decalcification prior to cutting. Currently, these deposits are considered to be local degenerative phenomena without clinical repercussions. However, the use of bone scintigraphy has shown a high prevalence, between 14 and 16%, of ATTR cardiac amyloidosis in patients with severe RA. The diagnosis of ATTR amyloidosis has been proven histologically in a few patients. Sequencing of the TTR gene has shown that they are mainly wild forms. In fact, the prevalence of transthyretin mutations in our local cohort is 20%. The objective of this study is to determine by proteomic analysis based on mass spectrometry, the prevalence of ATTR aortic valve amyloidosis in patients undergoing surgical valve replacement for degenerative aortic stenosis.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT04636684
Study type Interventional
Source University Hospital, Toulouse
Contact Magali COLOMBAT, MD
Phone 5 31 15 61 40
Email colombat.m@chu-toulouse.fr
Status Recruiting
Phase N/A
Start date December 1, 2020
Completion date December 31, 2025

See also
  Status Clinical Trial Phase
Recruiting NCT04893889 - Substudy (NCT04456582): Noninvasive Assessment of Myocardial Stiffness by 2D-SWE Ultrasound Technique (Two-dimensional Shear Wave Elastography) in Patients With Amyloidosis and Fabry Disease. N/A
Withdrawn NCT04943302 - Isatuximab and Bendamustine in Systemic Light Chain Amyloidosis Phase 2
Active, not recruiting NCT02909036 - Study of Captisol Enabled Melphalan and Pharmacokinetics for Patients With Multiple Myeloma or Light Chain Amyloidosis That Are Receiving an Autologous Transplant. Phase 1
Completed NCT02816476 - Daratumumab Therapy for Patients With Refractory or Relapsed AL Amyloidosis Phase 2
Completed NCT01083316 - Bortezomib and Dexamethasone Followed by High-Dose Melphalan and Stem Cell Transplantation for Primary (AL) Amyloidosis Phase 2
Completed NCT01527032 - Risk-adapted Therapy for Primary Systemic (AL) Amyloidosis Phase 2
Completed NCT02545907 - A Dose Escalation Study of Carfilzomib Taken With Thalidomide and Dexamethasone in Relapsed AL Amyloidosis Phase 1/Phase 2
Recruiting NCT05263817 - A Clinical Study of CD19/BCMA CAR-T Cells in the Treatment of Refractory POEMS Syndrome, Amyloidosis, Autoimmune Hemolytic Anemia, and Vasculitis Early Phase 1
Active, not recruiting NCT03201965 - A Study to Evaluate the Efficacy and Safety of Daratumumab in Combination With Cyclophosphamide, Bortezomib and Dexamethasone (CyBorD) Compared to CyBorD Alone in Newly Diagnosed Systemic Amyloid Light-chain (AL) Amyloidosis Phase 3
Withdrawn NCT02589860 - Analysis of Oral Mucositis in Patient's Undergoing Melphalan Conditioning and Autologous Stem Cell Transplant
Recruiting NCT05635266 - A Single-Site Tissue Repository Providing Annotated Biospecimens for Approved Investigator-directed Biomedical Research Initiatives
Completed NCT02574676 - Quality of Life (QOL) Registry for Patients With AL Amyloidosis
Active, not recruiting NCT02260466 - Prevalence and Post-surgical Outcomes of CARdiac Wild-type TransthyrEtin amyloidoSIs in Elderly Patients With Aortic steNosis Referred for Valvular Replacement. N/A
Withdrawn NCT02462213 - Prospective Identification of Cardiac Amyloidosis by Cardiac Magnetic Resonance Imaging N/A
Recruiting NCT05577819 - Prevalence and Prediction of ATTR in Ambulatory Patients With HFpEF N/A
Completed NCT01406314 - SAP Depleter Dose Assessment Study in Patients Phase 1
Not yet recruiting NCT04985734 - Transthyretin Amyloidosis Cardiomyopathy (ATTR-CM) in Patients With Idiopathic Peripheral Neuropathy N/A
Active, not recruiting NCT03584022 - Clinical Trial to Assess the Safety of a Novel Scaffold Biomaterial N/A
Active, not recruiting NCT05199337 - Phase 1/2 Study of ZN-d5 for the Treatment of Relapsed or Refractory Light Chain (AL) Amyloidosis Phase 1/Phase 2
Active, not recruiting NCT05235269 - A Study to Evaluate Organ Level Uptake Repeatability of 124I AT-01 in Subjects With Systemic Amyloidosis Phase 2