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Cinryze® (C1 Esterase Inhibitor, Human)

Policy Number: PH-0168


Last Review Date: 10/03/2023

Date of Origin:  08/27/2013

Dates Reviewed:  06/2014, 09/2014, 03/2015, 06/2015, 09/2015, 12/2015, 03/2016, 06/2016, 09/2016, 12/2016, 03/2017, 06/2017, 09/2017, 12/2017, 03/2018, 06/2018, 07/2018, 10/2018, 10/2019, 03/2020, 10/2020, 10/2021, 10/2022, 10/2023

FOR PEEHIP Members Only -Coverage excludes the provider-administered medication(s) outlined in this drug policy from being accessed through a specialty pharmacy. It must be obtained through buy and bill.

  1. Length of Authorization

Coverage will be provided for 12 months and may be renewed.

  1. Dosing Limits

A. Quantity Limit (max daily dose) [NDC Unit]:

  • Cinryze 500 unit single-dose vial: 50 vials per 30 days

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

  • 2,500 billable units per 30 days
  1. Initial Approval Criteria 1

Depending on member benefits, additional criteria may apply for coverage of this drug in an outpatient facility setting. Verify any Site of Service requirements with the member’s plan and refer to the Voluntary Site of Service Policy or the Mandatory Site of Service Policy for additional information.

Coverage is provided in the following conditions:

  • Patient is at least 6 years of age; AND

Universal Criteria 1,13,20

Submission of medical records related to the medical necessity criteria is REQUIRED on all requests for authorizations. Records will be reviewed at the time of submission. Please provide documentation via direct upload through the PA web portal or by fax.

  • Must be prescribed by, or in consultation with, a specialist in: allergy, immunology, hematology, pulmonology, or medical genetics; AND
  • Will not be used in combination with other prophylactic therapies targeting C1 inhibitor (i.e., Haegarda, etc.) or kallikrein (i.e., Takhzyro, Orladeyo, etc.); AND
  • Confirmation the patient is avoiding the following possible triggers for HAE attacks:
    • Estrogen-containing oral contraceptive agents AND hormone replacement therapy; AND
    • Antihypertensive agents containing ACE inhibitors or angiotensin II receptor blockers (ARBs); AND
    • Dipeptidyl peptidase IV (DPP-IV) inhibitors (e.g., sitagliptin); AND
    • Neprilysin inhibitors (e.g., sacubitril); AND

Prophylaxis to prevent Hereditary Angioedema (HAE) attacks † Ф 1,13,20,21,22

  • Patient has one of the clinical presentations listed below consistent with an HAE subtype§, which must be confirmed by repeat blood testing (treatment for acute attack should not be delayed for confirmatory testing); AND
    • Patient is receiving treatment as short-term HAE prophylaxis prior to a procedure (i.e. dental or medical procedure); OR
  • Patient has a history of one of the following criteria for long-term HAE prophylaxis:
      • History of three (3) or more severe HAE attack per month (i.e., airway swelling, debilitating cutaneous or gastrointestinal episodes)
      • Patient is disabled more than 5 days per month by HAE
      • History of at least one laryngeal attack caused by HAE; AND
  • Treatment with “on-demand” therapy (i.e., Kalbitor, Firazyr, Ruconest, or Berinert) did not provide satisfactory control or access to “on-demand” therapy is limited

HAE I (C1-Inhibitor deficiency) § 13,20,21,22

  • Low C1 inhibitor (C1-INH) antigenic level (C1-INH antigenic level below the lower limit of normal as defined by the laboratory performing the test); AND
  • Low C4 level (C4 below the lower limit of normal as defined by the laboratory performing the test); AND
  • Low C1-INH functional level (C1-INH functional level below the lower limit of normal as defined by the laboratory performing the test); AND
    • Patient has a family history of HAE; OR
    • Acquired angioedema has been ruled out (i.e., patient onset of symptoms occur prior to 30 years of age, normal C1q levels, patient does not have underlying disease such as lymphoma or benign monoclonal gammopathy [MGUS], etc.)

HAE II (C1-Inhibitor dysfunction) § 20,22

  • Normal to elevated C1-INH antigenic level; AND
  • Low C4 level (C4 below the lower limit of normal as defined by the laboratory performing the test); AND
  • Low C1-INH functional level (C1-INH functional level below the lower limit of normal as defined by the laboratory performing the test)

HAE with normal C1INH (formerly known as HAE III) § 20,21,22

  • Prophylaxis for HAE with normal C1-INH is not routinely recommended and will be evaluated on a case-by-case basis
  • Prior to consideration of long-term prophylaxis, the patient must have demonstrated:
    • An inadequate response or intolerance to an adequate trial of prophylactic therapy with an antifibrinolytic agent (e.g., tranexamic acid (TXA) or aminocaproic acid) and/or a 17α-alkylated androgen (e.g., danazol) unless contraindicated. Female patients may derive additional benefit from progestins15,16,17; AND
    • Response to therapy from an agent indicated for the treatment of acute attacks (i.e., C1 esterase inhibitor, icatibant, ecallantide, etc.)

FDA Approved Indication(s); Compendia Recommended Indication(s); Ф Orphan Drug

  1. Renewal Criteria 1,13,20,21,22

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: severe hypersensitivity reactions, serious thromboembolic events (arterial and venous), etc.; AND
    • Significant improvement in severity, frequency, and/or duration of attacks have been achieved and sustained; OR
    • Patient requires dose titration due to an inadequate response to therapy (> 1.0 HAE attack/month, regardless of severity/duration)
  1. Dosage/Administration 1  




Prophylaxis of Hereditary Angioedema (HAE) attacks

Adult and adolescents (at least 12 years of age)

Administer 1,000 IU* by intravenous injection every 3 to 4 days

  • For patients who have not responded adequately to initial dosing, doses up to 2,000 IU (not exceeding 80 IU/kg) every 3 or 4 days may be considered based on individual patient response.

Pediatric patients (6 to 11 years of age)

Administer 500 IU* by intravenous injection every 3 to 4 days

  • The dose may be adjusted according to individual patient response, up to 1,000 IU every 3 to 4 days

* One International Unit (IU) corresponds to the amount of C1 esterase inhibitor present in 1 mL of normal plasma as defined by the WHO international reference

standard. Previously, the potency values were expressed in Units (U) and were relative to an in-house reference standard. A conversion factor of 0.83 can be used to

recalculate the potency from U to IU, i.e., 100 U = 83 IU.

**Note: Patients may self-administer Cinryze after being instructed by their healthcare provider.



  1. Billing Code/Availability Information


  • J0598 – Injection, C1 esterase inhibitor (human), cinryze, 10 units; 1 billable unit = 10 units


  • Cinryze 500 units single-dose vial: 42227-0081-xx
  1. References
  1. Cinryze [package insert]. Exton, PA; ViroPharma Biologics, Inc; February 2023. Accessed September 2023.
  2. Lumry W, Manning ME, Hurewitz DS, et al, "Nanofiltered C1-Esterase Inhibitor for the Acute Management and Prevention of Hereditary Angioedema Attacks Due to C1-Inhibitor Deficiency in Children," J Pediatr, 2013, 162(5):1017-22.
  3. Bowen T, Cicardi M, Farkas H, et al. Canadian 2003 International Consensus Algorithm For the Diagnosis, Therapy, and Management of Hereditary Angioedema. J Allergy Clin Immunol. 2004 Sep;114(3):629-37.
  4. Bygum A, Andersen KE, Mikkelsen CS. Self-administration of intravenous C1-inhibitor therapy for hereditary angioedema and associated quality of life benefits. Eur J Dermatol. Mar-Apr 2009;19(2):147-151.
  5. Bowen T, Cicardi M, Farkas H, et al. 2010 International consensus algorithm for the diagnosis, therapy and management of hereditary angioedema. Allergy Asthma Clin Immunol. 2010;6(1):24.
  6. Craig T, Aygören-Pürsün E, Bork K, et al. WAO Guideline for the Management of Hereditary Angioedema. World Allergy Organ J. 2012 Dec;5(12):182-99.
  7. Gompels MM, Lock RJ, Abinun M, et al. C1 inhibitor deficiency: consensus document.  Clin Exp Immunol. 2005;139(3):379.
  8. Betschel S, Badiou J, Binkley K, et al. Canadian hereditary angioedema guideline. Asthma Clin Immunol. 2014 Oct 24;10(1):50. doi: 10.1186/1710-1492-10-50.
  9. Zuraw BL, Bernstein JA, Lang DM, et al. A focused parameter update: hereditary angioedema, acquired C1 inhibitor deficiency, and angiotensin-converting enzyme inhibitor-associated angioedema. J Allergy Clin Immunol. 2013 Jun;131(6):1491-3. doi: 10.1016/j.jaci.2013.03.034.
  10. Zuraw BL, Banerji A, Bernstein JA, et al. US Hereditary Angioedema Association Medical Advisory Board 2013 recommendations for the management of hereditary angioedema due to C1 inhibitor deficiency. J Allergy Clin Immunol Pract. 2013 Sep-Oct;1(5):458-67.
  11. Frank MM, Zuraw B, Banerji A, et al. Management of children with Hereditary Angioedema due to C1 Inhibitor deficiency. Pediatrics. 2016 Nov. 135(5)
  12. Zuraw BL, Bork K, Binkley KE, et al. Hereditary angioedema with normal C1 inhibitor function: Consensus of an international expert panel. Allergy Asthma Proc. 2012;33 Suppl 1:145-156.
  13. Maurer M, Mager M, Ansotegui I, et al. The international WAO/EAACI guideline for the management of hereditary angioedema-The 2017 revision and update. Allergy. 2018 Jan 10. doi: 10.1111/all.13384.
  14. Lang DM, Aberer W, Bernstein JA, et al. International consensus on hereditary and acquired angioedema. Ann Alergy Asthma Immunol. 2012;109:395-402.
  15. Wintenberger C, Boccon-Gibod I, Launay D, et al. Tranexamic acid as maintenance treatment for non-histaminergic angioedema: analysis of efficacy and safety in 37 patients. Clin Exp Immunol. 2014 Oct; 178(1): 112–117.
  16. Saule C, Boccon-Gibod I, Fain O, et al. Benefits of progestin contraception in non-allergic angioedema. Clin Exp Allergy. 2013 Apr;43(4):475-82.
  17. Frank MM, Sergent JS, Kane MA, et al. Epsilon aminocaproic acid therapy of hereditary angioneurotic edema; a double-blind study. N Engl J Med. 1972:286:808-812.
  18. Zuraw B, Busse P, White M, et al. Efficacy and safety of long-term prophylaxis with C1 inhibitor (C1INH) concentrate in patients with hereditary angioedema (HAE). J Allergy Clin Immunol. 2008;121(2 Suppl 1):S272.
  19. Aygören-Pürsün E, Soteres DF, Nieto-Martinez SA, et al. A randomized trial of human C1 inhibitor prophylaxis in children with hereditary angioedema. Pediatr Allergy Immunol. 2019;30(5):553-561.
  20. Betschel S, Badiou J, Binkley K, et al. The International/Canadian Hereditary Angioedema Guideline. Allergy Asthma Clin Immunol. 2019; 15: 72. Published online 2019 Nov 25.  doi: 10.1186/s13223-019-0376-8.
  21. Busse PJ, Christiansen SC, Riedl MA, et al. US HAEA Medical Advisory Board 2020 Guidelines for the Management of Hereditary Angioedema. J Allergy Clin Immunol Pract. 2021 Jan;9(1):132-150.e3. doi: 10.1016/j.jaip.2020.08.046.
  22. Maurer M, Magerl M, Betschel S, et al. The international WAO/EAACI guideline for the management of hereditary angioedema – The 2021 revision and update. Allergy. 2021 Nov 22. doi: 10.1111/all.15214

Appendix 1 – Covered Diagnosis Codes


ICD-10 Description


Defects in the complement system

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

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 Determination (NCD), Local Coverage Determinations (LCDs), and Local Coverage Articles (LCAs) may exist and compliance with these policies is required where applicable. They can be found at: Additional indications may be covered at the discretion of the health plan.

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

Medicare Part B Administrative Contractor (MAC) Jurisdictions


Applicable State/US Territory


E (1)


Noridian Healthcare Solutions, LLC

F (2 & 3)


Noridian Healthcare Solutions, LLC



Wisconsin Physicians Service Insurance Corp



National Government Services, Inc. (NGS)

H (4 & 7)


Novitas Solutions, Inc.



Wisconsin Physicians Service Insurance Corp

N (9)


First Coast Service Options, Inc.

J (10)


Palmetto Government Benefit Administrators, LLC

M (11)

NC, SC, WV, VA (excluding below)

Palmetto GBA, LLC

L (12)

DE, MD, PA, NJ, DC (includes Arlington & Fairfax counties and the city of Alexandria in VA)

Novitas Solutions, Inc.

K (13 & 14)


National Government Services, Inc. (NGS)



CGS Administrators, LLC





CINRYZE® (C1 Esterase Inhibitor Human) Prior Auth Criteria
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