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NCT03923920 Clinical Trial

Screening for Systemic Amyloidosis Via the Ligamentum Flavum

Spinal Stenosis Clinical Trial

— ALF  

Official title:
Screening for Systemic Amyloidosis Via the Ligamentum Flavum

Clinical Trial Details — Status: Completed

Administrative data
NCT number NCT03923920
Other study ID # 18-1512
Secondary ID
Status Completed
Phase
First received
Last updated
Start date May 1, 2019
Est. completion date December 2, 2021

Study information
Verified date December 2021
Source The Cleveland Clinic
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The investigators will prospectively evaluate for the presence of amyloid deposits in ligamentum flavum (yellow ligament) tissue samples obtained from patients undergoing spinal stenosis surgery. Patients who have tissue that stains positive for amyloid will be referred to an amyloidosis specialist.

Description:

Similar to carpal tunnel syndrome, spinal stenosis is associated with systemic amyloidosis and presents earlier than cardiac amyloidosis symptoms - 21-45% of ATTR patients and case reports in AL patients. The investigators' recent study found that 10% of older patients undergoing carpal tunnel release surgery were positive for amyloidosis, with 20% of that group presenting with cardiac involvement. 70% of the amyloid-positive group had a history of spinal stenosis and 40% required surgical intervention. Surgical intervention for spinal stenosis could provide an opportunity to screen for amyloidosis through yellow ligament (ligamentum flavum) biopsy. This study will look at the prevalence of amyloidosis in patients undergoing surgical intervention for non-congenital spinal stenosis and spondyloarthropathy. The investigators hypothesize that 10% of such patients will be positive for amyloidosis.

Recruitment information / eligibility
Status Completed
Enrollment 200
Est. completion date December 2, 2021
Est. primary completion date October 4, 2021
Accepts healthy volunteers
Gender All
Age group 50 Years and older
Eligibility Inclusion Criteria: - Age =50 years - Undergoing surgical intervention for non-congenital spinal stenosis and/or spondyloarthropathy - Able to consent Exclusion Criteria: - History of congenital spinal stenosis or congenital spondyloarthropathy

Study Design

Related Conditions & MeSH terms

Intervention

Procedure:
• Biopsy
During clinically-scheduled spinal stenosis surgery, ligamentum flavum tissue (which may contain surrounding tissue and subcutaneous fat) that is removed during the procedure will be sent to pathology to be analyzed with amyloid-specific staining.

Locations
Country Name City State
United States Cleveland Clinic Cleveland Ohio

Sponsors (1)
Lead Sponsor Collaborator
The Cleveland Clinic

Country where clinical trial is conducted

United States, 

References & Publications (6)

M'bappé P, Grateau G. Osteo-articular manifestations of amyloidosis. Best Pract Res Clin Rheumatol. 2012 Aug;26(4):459-75. doi: 10.1016/j.berh.2012.07.003. Review. — View Citation

Sekijima Y, Yazaki M, Ueda M, Koike H, Yamada M, Ando Y. First nationwide survey on systemic wild-type ATTR amyloidosis in Japan. Amyloid. 2018 Mar;25(1):8-10. doi: 10.1080/13506129.2017.1409706. Epub 2017 Nov 28. — View Citation

Sperry BW, Reyes BA, Ikram A, Donnelly JP, Phelan D, Jaber WA, Shapiro D, Evans PJ, Maschke S, Kilpatrick SE, Tan CD, Rodriguez ER, Monteiro C, Tang WHW, Kelly JW, Seitz WH Jr, Hanna M. Tenosynovial and Cardiac Amyloidosis in Patients Undergoing Carpal Tunnel Release. J Am Coll Cardiol. 2018 Oct 23;72(17):2040-2050. doi: 10.1016/j.jacc.2018.07.092. — View Citation

Sueyoshi T, Ueda M, Jono H, Irie H, Sei A, Ide J, Ando Y, Mizuta H. Wild-type transthyretin-derived amyloidosis in various ligaments and tendons. Hum Pathol. 2011 Sep;42(9):1259-64. doi: 10.1016/j.humpath.2010.11.017. Epub 2011 Feb 21. — View Citation

Westermark P, Westermark GT, Suhr OB, Berg S. Transthyretin-derived amyloidosis: probably a common cause of lumbar spinal stenosis. Ups J Med Sci. 2014 Aug;119(3):223-8. doi: 10.3109/03009734.2014.895786. Epub 2014 Mar 12. — View Citation

Yanagisawa A, Ueda M, Sueyoshi T, Okada T, Fujimoto T, Ogi Y, Kitagawa K, Tasaki M, Misumi Y, Oshima T, Jono H, Obayashi K, Hirakawa K, Uchida H, Westermark P, Ando Y, Mizuta H. Amyloid deposits derived from transthyretin in the ligamentum flavum as related to lumbar spinal canal stenosis. Mod Pathol. 2015 Feb;28(2):201-7. doi: 10.1038/modpathol.2014.102. Epub 2014 Sep 5. — View Citation

Outcome
Type Measure Description Time frame Safety issue
Primary Incidence of amyloidosis in older patients undergoing spinal stenosis surgery Incidence of amyloid deposits in removed ligamentum flavum tissue of older patients undergoing spinal stenosis surgery Baseline to 30 days
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