Modern Therapies in AA Amyloidosis


Anti-TNF medication

Type

Administered

Diseases treated

AA amyloidosis treatment

Infection risk

Use with caution in patients with

Monitoring

Antibody, autoimmune associations

Etanercept

Soluble p75 TNFR:Fc fusion protein

Subcutaneous

RA

AS

Psoriatic arthritis

TRAPS

JIA

Case reports

Tuberculosis

Fungal opportunistic hepatitis B reactivation

Congestive heart failure

Demyelinating disease

Hematologic disorders

Annual PPD

Hepatitis B screening prior to therapy

Lupus-like syndrome

Adalimumab

Fully humanized monoclonal antibody

Subcutaneous

RA

AS

Psoriatic arthritis

IBD

JIA

Case reports

Tuberculosis

Fungal opportunistic hepatitis B reactivation

Congestive heart failure

Demyelinating disease

Hematologic disorders

Annual PPD

Hepatitis B screening prior to therapy

Lupus-like syndrome

Human antihuman antibodies

Infliximab

Chimeric antibody (mouse/human)

Intravenous

RA

Psoriatic arthritis

AS

IBD

Case reports

Tuberculosis

Fungal infections

Opportunistic infections

Congestive heart failure

Demyelinating disease

Hematologic disorders

Annual PPD

Hepatitis B screening prior to therapy

Lupus-like syndrome

Human antichimeric antibodies

Certolizumab

Pegylated humanized Fab′ fragment

Subcutaneous

RA

Crohn’s disease

AS

Psoriatic arthritis

No reports

Tuberculosis

Fungal infections

Opportunistic infections

Congestive heart failure

Demyelinating disease

Hematologic disorders

Annual PPD

Hepatitis B screening prior to therapy

Lupus-like syndrome

Golimumab

Human IgG1κ (kappa) antibody

Subcutaneous

RA

AS

Psoriatic arthritis

Ulcerative colitis

No reports

Tuberculosis

Fungal infections

Opportunistic infections

Congestive heart failure

Demyelinating disease

Hematologic disorders

Annual PPD

Hepatitis B screening prior to therapy

Not described



The interleukin-1 (IL-1) pathway is the target of multiple biologic medications used in autoimmune and autoinflammatory diseases. The three available IL-1 antagonists include anakinra (IL-1 receptor antagonist), rilonacept (soluble IL-1 receptor decoy), and C (long-acting, fully human IgG1 anti-Il-1β (beta) monoclonal antibody). Due to their markedly different half-lives, anakinra is given as a daily subcutaneous injection, whereas rilonacept is given via weekly subcutaneous injection and canakinumab is given subcutaneously every 8 weeks. Anakinra has been an effective treatment for patients with RA, SJIA, and polyarticular JIA [13, 14]. In patients with periodic fever syndromes, anakinra has been used in patients with FMF who are nonresponders to colchicine as well as patients with TRAPS, the deficiency of IL-1 receptor antagonist (DIRA), and hyper-IgD syndrome (HIDS) and those with one of the cryopyrinopathies [familial cold autoinflammatory syndrome (FCAS), Muckle–Wells syndrome (MWS), and neonatal onset multisystem autoinflammatory disease/chronic infantile neurologic cutaneous and articular syndrome (NOMID/CINCA)] [1522]. The longer acting rilonacept and canakinumab have been approved for use in patients with FCAS and MWS and are also being used in NOMID patients [2126]. Regarding patients with AA amyloidosis, the various IL-1 inhibitors have been successful at slowing the progression of and, in some cases, treatment results in regression of amyloid-associated proteinuria [15, 2630].

A newer therapy for the treatment of RA and SJIA is tocilizumab, the humanized anti-human IL-6 receptor antibody. Preliminary evidence has shown efficacy in treating both RA- and SJIA-associated AA amyloidosis [31, 32]. Currently ongoing is an international trial using the molecule, eprodisate disodium, in patients with AA amyloidosis-associated nephropathy. By binding the amyloidogenic precursor proteins, eprodisate disodium attempts to prevent the deposition of amyloid in organs, hence preserving renal function. For more information regarding ongoing clinical trials involving these medications for the diseases discussed above, the website: www.​clinicaltrials.​gov maintains a database of federally and privately supported clinical trials conducted worldwide.


References



1.

Immonen K, Savolainen A, Kautiainen H, Hakala M. Longterm outcome of amyloidosis associated with juvenile idiopathic arthritis. J Rheumatol. 2008;35:907–12.PubMed


2.

Immonen K, Finne P, Gronhagen-Riska C, et al. A marked decline in the incidence of renal replacement therapy for amyloidosis associated with inflammatory rheumatic diseases—data from nationwide registries in Finland. Amyloid. 2011;18:25–8.CrossRefPubMed

May 14, 2017 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Modern Therapies in AA Amyloidosis

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