Aetna · Carvykti · US health-plan appeal rights

Carvykti denied as non-formulary by Aetna?

Q: How long do I have to appeal a Aetna Carvykti denial?

Internal appeal window: Typically 180 days from the denial date. External review window: Typically 60–120 days after the final internal denial. The clock starts from the date on the denial letter.

Non-formulary doesn't mean uncoverable. Most plans have a formulary-exception process: the appeal needs to show the formulary alternatives are inappropriate for your specific clinical situation.

By Michael John Ryan, Founder & Privacy Officer, DenialHelp, LLC

Last reviewed 2026-05-09

Policy data current as of 2026-04-26

US health-plan appeal rights

Cite: Most US health plans have appeal rights under either the ACA, ERISA, or Medicare/Medicaid rules

Most US health plans are required by federal law to give you both an internal appeal (where the insurer reconsiders) and an external review (where an independent reviewer decides). The exact timelines and processes depend on what kind of plan you have — marketplace / employer group, self-funded, Medicare Advantage, or Medicaid MCO — but in every case there's a window after the denial during which you have the right to fight it.

Internal appeal window

Typically 180 days from the denial date

External review window

Typically 60–120 days after the final internal denial

What Aetna typically requires

FDA-approved indication: r/r multiple myeloma after >=1 prior line including IMiD + anti-CD38 mAb, lenalidomide-refractory (Apr 2024 2L+ expansion via CARTITUDE-4) OR after >=4 prior lines (Feb 2022). Age >=18. ECOG 0-1. Adequate organ + cardiac function (LVEF >=45%, CrCl >=40, no NYHA III/IV CHF). No prior BCMA-directed CAR-T. Administered at FACT-accredited REMS-certified ATC. Bridging therapy + Flu/Cy LD covered as part of episode.

Source policy: Aetna Clinical Policy Bulletin 0982 — Ciltacabtagene Autoleucel (Carvykti)

What works in the appeal

CARTITUDE-4 (San-Miguel NEJM 2023;389:335) — Carvykti vs SOC (DPd / PVd) in 2L+ lenalidomide-refractory MM with PFS HR 0.26 — basis for FDA Apr 5 2024 2L+ expansion + NCCN MM v3.2024 preferred 2L+ pathway. Salvage second auto-HSCT inferior to CAR-T per NCCN + IMWG. CARTITUDE-4 entry criteria allowed prior anti-BCMA ADC (belantamab); only prior BCMA CAR-T excluded. CMS NCD 110.24 covers FDA-approved indications. REMS-mandated ATC + SCA pathway for out-of-state per ACA network-adequacy.

Next steps

Find the date on the denial letter — your appeal window starts there.
Read your plan's Summary of Benefits and Coverage (SBC) for the specific deadlines.
Request the insurer's claim file in writing — they must provide it.
Submit your appeal in writing with new clinical evidence and a physician statement.

Get the letter drafted

DenialHelp drafts your appeal in 5 minutes — $40 list price, $30 for your first letter (use code SEO25). We cite the federal regs and the specific clinical evidence your plan responds to. Your physician signs and sends.

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Related appeal guides

Other Aetna appeals

Other denial reasons for Aetna Carvykti

denied as not medically necessary denied for failing step therapy denied for missing prior authorization denied as experimental or investigational denied as not FDA-approved for this use

This guide describes general US federal appeal rights based on Most US health plans have appeal rights under either the ACA, ERISA, or Medicare/Medicaid rules. Your specific plan documents (Summary of Benefits and Coverage, Evidence of Coverage) override anything here. DenialHelp is not your lawyer and not your physician — we draft appeal letters that your physician signs. Outcomes depend on your insurer's decision and factors outside our control. Reviewed by Michael John Ryan on 2026-05-09. Editorial standards: denialhelp.com/authors.