Medical Policy:
12.01.097-001
Topic:
Zycubo
Section:
Injections
Effective Date:
September 1, 2026
Issued Date:
June 3, 2026
Last Revision Date:
June 2026
Annual Review:
February 2027
 
 

FDA LABELED INDICATIONS AND DOSAGE

Agent(s)

FDA Indication(s)

Notes

Ref#

Zycubo®

(copper histidinate)

Subcutaneous injection

Treatment of Menkes disease in pediatric patients 

Limitation of Use: Not indicated for the treatment of occipital horn syndrome

 

1

This policy is designed to address medical guidelines that are appropriate for the majority of individuals with a particular disease, illness, or condition. Each person's unique clinical circumstances may warrant individual consideration, based on review of applicable medical records.

Policy Position Coverage is subject to the specific terms of the member's benefit plan.

QUANTITY LIMIT CLINICAL CRITERIA FOR APPROVAL

Module

Clinical Criteria for Approval

QL Standalone

Quantity Limit for the Target Agent(s) will be approved when ONE of the following is met:

1.    The requested quantity (dose) does NOT exceed the program quantity limit OR

2.    The requested quantity (dose) exceeds the program quantity limit AND ONE of the following:

A.    BOTH of the following:

1.    The requested agent does NOT have a maximum FDA labeled dose for the requested age and indication AND

2.    There is support for therapy with a higher dose for the requested age and indication OR

B.    BOTH of the following:

1.    The requested quantity (dose) does NOT exceed the maximum FDA labeled dose for the requested age and indication AND 

2.    There is support for why the requested quantity (dose) cannot be achieved with a lower quantity of a higher strength that does NOT exceed the program quantity limit

Length of Approval: up to 12 months

QUANTITY LIMIT CLINICAL CRITERIA OPERATIONAL LEVEL OF EVIDENCE REQUIREMENTS

Module

Ops Set Up

Validation Options

Other Explanation

QL Standalone

Validation:  Apply Baseline and go to Validation Options

 

 


Reference to Our Policy Information Guidelines

CLINICAL RATIONALE

Utilization Management

Utilization management (UM) is not applied to patients less than 1 year of age to prevent delays in initiating therapy for a time-sensitive, life-threatening condition where early treatment is critical to clinical outcomes. For patients 1 year of age and older, quantity limits are applied to ensure alignment with FDA-labeled dosing and to prevent inappropriate continuation of higher infant dosing or excess utilization. 

REFERENCES

Number

Reference

1

Zycubo prescribing information. Sentynl Therapeutics, Inc. January 2026.


Professional Statements and Societal Positions Guidelines

POLICY AGENT SUMMARY QUANTITY LIMIT

Target Agent GPI

Target Brand Name(s)

Target Generic Name(s)

Strength

QL Amount

Dose Form

Days Supply

Duration

Targeted NDCs When Exclusions Exist

Age Limit

Effective Date

Term Date

 

79900010162110

Zycubo

copper histidinate for subcutaneous soln

2.9 MG

30

Vials

30

Days

 

Applies to ages 1 and older

 

 

 

CLIENT SUMMARY – QUANTITY LIMITS

Target Brand Agent Name(s)

Target Generic Agent Name(s)

Strength

Client Formulary

 

Zycubo

copper histidinate for subcutaneous soln

2.9 MG

Commercial ; HIM ; WY NetR-Commercial Custom


Place of Service: Inpatient/Outpatient


The policy position applies to all commercial lines of business




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