Last Review Date: 05/05/2025

Date of Origin: 07/05/2022

Dates Reviewed: 07/2022, 10/2023, 07/2024, 05/2025

1. Length of Authorization

Initial coverage will be provided for 12 months and may be renewed annually thereafter.

2. Dosing Limits

    Max Units (per dose and over time) [HCPCS Unit]:

• 25 billable units (25 mg) every 3 months

3. Initial Approval Criteria ¹

Coverage is provided in the following conditions:

• Patient is at least 18 years of age; AND

Universal Criteria ¹

• Patient is receiving supplementation with vitamin A at the recommended daily allowance; AND
• Must not be used in combination with other transthyretin (TTR) reducing or stabilizing agents (e.g., tafamidis, patisiran, acoramidis, etc.); AND

Polyneuropathy due to Hereditary Transthyretin-Mediated (hATTR) Amyloidosis † Ф ^1,5-8

• Patient has a definitive diagnosis of hATTR amyloidosis as documented by one of the following:
  • Amyloid deposition on tissue biopsy; OR
  • Identification of a pathogenic TTR variant using molecular genetic testing; AND
• Used for the treatment of polyneuropathy as demonstrated by at least TWO of the following criteria:

• Subjective patient symptoms are suggestive of neuropathy
• Abnormal nerve conduction studies are consistent with polyneuropathy
• Abnormal neurological examination is suggestive of neuropathy; AND

• Patient’s peripheral neuropathy is attributed to hATTR and other causes of neuropathy have been excluded; AND
• Baseline in strength/weakness has been documented using an objective clinical measuring tool (e.g., Medical Research Council (MRC) muscle strength, etc.); AND
• Patient has not been the recipient of an orthotopic liver transplant (OLT)

Cardiomyopathy of Wild Type or Hereditary Transthyretin-Mediated Amyloidosis (ATTR-CM) † Ф ^1,9

• Patient has evidence of cardiac involvement by echocardiography with an end-diastolic interventricular septal wall thickness > 12 mm; AND
• Patient has a definitive diagnosis of Wild Type or Hereditary ATTR-CM as confirmed by laboratory testing (e.g., stannous pyrophosphate [PYP] scanning, monoclonal antibody studies, biopsy, scintigraphy, genetic testing [TTR genotyping]); AND

• Patient has a medical history of heart failure which required at least 1 prior hospitalization; OR
• Patient has clinical evidence of heart failure (with or without hospitalization) manifested by signs and symptoms of volume overload or elevated intracardiac pressure (e.g., elevated jugular venous pressure, shortness of breath or signs of pulmonary congestion on x-ray or auscultation, peripheral edema) which requires/required treatment with a diuretic; AND

• Patient has New York Heart Association (NYHA) Class I or II heart failure OR Class III heart failure that is not considered high risk (i.e., excludes patients with NYHA high risk Class III disease and Class IV disease); AND
• Patient has a baseline 6-minute walk-test (6MWT) distance of ≥150 meters

† FDA Approved Indication(s); ‡ Compendium Recommended Indication(s) Ф Orphan Drug

4. Renewal Criteria ¹

Coverage can be renewed based upon the following criteria:

• Patient continues to meet the universal and other indication-specific relevant criteria identified in section III; AND

• Absence of unacceptable toxicity from the drug. Examples of unacceptable toxicity include: ocular symptoms related to vitamin A deficiency (e.g., night blindness), etc.; AND

Polyneuropathy due to Hereditary Transthyretin-Mediated (hATTR) Amyloidosis ^1,5-8

• Disease response compared to pre-treatment baseline as evidenced by stabilization or improvement in one or more of the following:

• Signs and symptoms of neuropathy
• MRC muscle strength

Cardiomyopathy of Wild Type Transthyretin-Mediated Amyloidosis (ATTR-CM) ^1,9

• Disease response compared to pre-treatment baseline as evidenced by stabilization or improvement in one or more of the following:
  • Frequency of cardiovascular-related hospitalizations or urgent heart failure visits
  • Total distance walked during 6-minute walk test (6MWT)

5. Dosage/Administration ¹

6. Billing Code/Availability Information

HCPCS Code:

• J0225 – Injection, vutrisiran, 1 mg; 1 billable unit = 1 mg

NDC:

• Amvuttra 25 mg/0.5 mL single-dose prefilled syringe: 71336-1003-xx

7. References

1. Amvuttra [package insert]. Cambridge, MA; Alnylam Pharmaceuticals, Inc., March 2025. Accessed April 2025.
2. Adams D, Gonzalez-Duarte A, O’Riordan WD, et al. Patisiran, an RNAi Therapeutic, for Hereditary Transthyretin Amyloidosis. N Engl J Med. 2018 Jul 5;379(1):11-21. doi: 10.1056/NEJMoa1716153
3. Adams D, Suhr OB, Dyck PJ, et al. Trial design and rationale for APOLLO, a Phase 3, placebo-controlled study of patisiran in patients with hereditary ATTR amyloidosis with polyneuropathy. BMC Neurol. 2017;17(1):181
4. Ando Y, Coelho T, Berk JL, et al. Guideline of transthyretin-related hereditary amyloidosis for clinicians. Orphanet J Rare Dis. 2013;8:31.
5. Sekijima Y, Nakamura K. Hereditary Transthyretin Amyloidosis. In: Adam MP, Feldman J, Mirzaa G, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993–2024. Initial Posting: November 5, 2001; Last Update: May 30, 2024. Accessed June 11, 2024. https://www.ncbi.nlm.nih.gov/books/NBK1194/.
6. Luigetti M, Romano A, DiPaolantonio A, et al. Diagnosis and Treatment of Hereditary Transthyretin Amyloidosis (hATTR) Polyneuropathy: Current Perspectives on Improving Patient Care. Ther Clin Risk Manag. 2020; 16: 109–123.Published online 2020 Feb 21. doi: 10.2147/TCRM.S219979
7. Gonzalez-Duarte A, Adams D, Tournev I, et al. HELIOS-A: results from the phase 3 study of vutrisiran in patients with hereditary transthyretin-mediated amyloidosis with polyneuropathy. J Am Coll Cardiol. 2022 Mar, 79 (9_Supplement) 302. https://doi.org/10.1016/S0735-1097(22)01293-1.
8. Adams D, Tournev IL, Taylor MS, et al; HELIOS-A Collaborators. Efficacy and safety of vutrisiran for patients with hereditary transthyretin-mediated amyloidosis with polyneuropathy: a randomized clinical trial. Amyloid. 2023 Mar;30(1):1-9. doi: 10.1080/13506129.2022.2091985. Epub 2022 Jul 23. PMID: 35875890.
9. Fontana M, Berk JL, Gillmore JD, et al; HELIOS-B Trial Investigators and Collaborators. Vutrisiran in Patients with Transthyretin Amyloidosis with Cardiomyopathy. N Engl J Med. 2025 Jan 2;392(1):33-44. doi: 10.1056/NEJMoa2409134. Epub 2024 Aug 30. PMID: 39213194.

Appendix 1 – Covered Diagnosis Codes

Appendix 2 – Centers for Medicare and Medicaid Services (CMS)

The preceding information is intended for non-Medicare coverage determinations. Medicare coverage for outpatient (Part B) drugs is outlined in the Medicare Benefit Policy Manual (Pub. 100-2), Chapter 15, §50 Drugs and Biologicals. In addition, National Coverage Determinations (NCDs) and/or Local Coverage Determinations (LCDs) may exist and compliance with these policies is required where applicable. Local Coverage Articles (LCAs) may also exist for claims payment purposes or to clarify benefit eligibility under Part B for drugs which may be self-administered. The following link may be used to search for NCD, LCD, or LCA documents: https://www.cms.gov/medicare-coverage-database/search.aspx. Additional indications, including any preceding information, may be applied at the discretion of the health plan.

Medicare Part B Covered Diagnosis Codes (applicable to existing NCD/LCA/LCD): N/A