Medical Drug Criteria (MDC)

Policy Num:       P1.002.016
Policy Name:     Revakinagene taroretcel-lwey (Encelto) Intravitreal Implant

Policy ID:          [P1.002.016] [Ac/MDC/P+ ] [0.00.00]


Last Review:       September 22, 2025
Next Review:      September 20, 2026

 

Related Policies: None

Revakinagene taroretcel-lwey (Encelto) Intravitreal Implant

Popultation Reference No. Populations
1 Individuals:
  • adults with idiopathic macular telangiectasia type 2 (MacTel2).

Summary

Encelto (revakinagene taroretcel-lwey) is a cell-based implant designed to continuously deliver recombinant human ciliary neurotrophic factor (rhCNTF) within the retina. It is indicated for the treatment of adult patients with idiopathic macular telangiectasia type 2, non-proliferative, to slow photoreceptor degeneration and preserve visual function.

objective

To establish the medical necessity criteria for Encelto under Triple-S health plans, consistent with FDA labeling, NCCN recommendations where applicable and Medicare coverage guidance

Policy Statements

Coverage of Encelto is provided when ALL the following are met:
 
1. Patient is 18 years or older.
 
2. Confirmed diagnosis of idiopathic MacTel Type 2, non-proliferative, by a retina specialist.
  
3. Evidence on SD-OCT of ellipsoid zone (EZ) loss area between 0.16 mm² and 2.00 mm².
  
4. Best corrected visual acuity (BCVA) of 20/80 or better (≥ 54 ETDRS letters).
 
5. At least one of the following clinical features: hyperpigmentation outside 500 μm from the fovea, crystalline deposits, right-angle vessels, retinal opacification, or lamellar cavitations (outer/inner).

  

Policy Guidelines

Exclusions: Encelto will NOT be covered if: 

Evidence of neovascularization or proliferative MacTel. 

Active ocular or periocular infection.

Known hypersensitivity to Endothelial Serum Free Media (Endo-SFM).

Severe ocular comorbidities (advanced glaucoma, retinopathy, uncontrolled uveitis).

Recent ocular surgery (lens extraction, vitrectomy, YAG capsulotomy) that interferes with assessment.

  

DOSAGE/ADMINISTRATION

Encelto is a one-time implant per affected eye; no repeat implantation is expected.
 
Implantation must be performed by a qualified retina surgeon under sterile conditions.
 
 
Monitoring:
 
Routine follow-up with OCT and visual acuity testing at regular intervals up to 24 months.
 
Monitor for retinal tears, detachment, vitreous hemorrhage, infection, or implant extrusion.

Regulatory status

FDA Approval: Granted in 2024 for the treatment of idiopathic MacTel Type 2 (non-proliferative).

Rationale

Clinical trials (Phase 2/3) demonstrated that Encelto significantly slowed the loss of the ellipsoid zone compared with sham implantation, preserving photoreceptor integrity and visual function. Safety signals include ocular surgical complications, risk of retinal detachment, vitreous hemorrhage, and local implant-related events. Long-term monitoring confirms reduced progression of central retinal degeneration in eligible patients.

Practice Guidelines & Position Statements

FDA PI (2024). Encelto is indicated for adult patients with idiopathic MacTel Type 2. 

AAO (American Academy of Ophthalmology): Acknowledges novel role of encapsulated cell therapy for retinal degenerative disease. 

NCCN: No direct oncology guideline applies; policy aligns with FDA approval and retinal society recommendations.

EXCLUSION CRITERIA

None

BENEFIT APPLICATION

As stated in the policy.

OTHER CRITERIA

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: http://www.cms.gov/medicare-coverage-database/search/advanced-search.aspx. Additional indications may be covered at the discretion of the health plan.

References

1. FDA. Encelto (revakinagene taroretcel-lwey) Prescribing Information. 2024. https://www.fda.gov/media/185972/download

2. Encelto Official Site. Clinical Study Design and Efficacy. https://www.encelto.com/ecp/efficacy-study-design/  

3. Kaiser Permanente Formulary. Encelto. 2025. https://healthy.kaiserpermanente.org

Codes

Codes Number Description
HCPCS J9999 Not otherwise classified, antineoplastic drugs
ICD-10 C43.0 Malignant melanoma of lip
C43.10-C43.122 Malignant melanoma of eyelid, including canthus
C43.20-C43.22 Malignant melanoma of ear and external auricular canal
C43.30-C43.39 Malignant melanoma of other and unspecified parts of face
C43.4 Malignant melanoma of scalp and neck
C43.51-C43.59 Malignant melanoma of trunk
C43.60 – C43.62 Malignant melanoma of upper limb, including shoulder
C43.70 – C43.72 Malignant melanoma of lower limb, including hip
C43.8 Malignant melanoma of overlapping sites of skin
C43.9 Malignant melanoma of skin, unspecified

Applicable Modifiers

As per payment guidelines

Policy History

Date Action Description
9/22/2025 NEW MDC Medical Drug Criteria approved at the September 2025 Pharmacy Criteria Meetting.