Step therapy is a common practice in many health insurance plans. It is the most frequently used restriction for specialty drug coverage. A 2021 study found that step therapy was included in about 39% of drug policies, with nearly half of these policies being stricter than national clinical guidelines.
For medications like Mounjaro (tirzepatide), which is approved for type 2 diabetes and shows potential for weight management, step therapy can impact how quickly you can access treatment.
In this article, we will discuss what step therapy for Mounjaro is, how to handle it, and the reasons behind its use.
What is Step Therapy?
Step therapy, often called a “fail-first” approach, is a policy used by insurance providers to manage costs and encourage the use of established treatments.
Under this approach, your insurance might require you to try more affordable, first-line medications before covering more expensive or advanced options. The goal is to ensure effective treatments are used while keeping healthcare affordable.
For managing type 2 diabetes, metformin is the standard first-line treatment. It’s widely regarded as safe, well-tolerated, and effective for achieving long-term health outcomes. Additionally, metformin is moderately priced and features a straightforward dosing regimen, making it a practical choice for many patients.

What is Step Therapy for Mounjaro?
Each insurance plan has its own step therapy policies for Mounjaro. For example:
If You Have Aetna
Aetna requires you to try certain preferred medications, like Ozempic (semaglutide) or Trulicity (dulaglutide), before they will consider covering Mounjaro. To qualify for approval, you must meet one of the following conditions:
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- You didn’t get the desired results from these medications
- You experienced side effects or intolerance
- You have a medical condition that prevents you from using them (contraindication)
Additional requirements may include:
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- If you’ve been on Mounjaro for less than three months, Aetna may require proof that metformin didn’t work for you or that you need combination therapy with an A1C of 7.5% or higher.
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- If you’ve been on Mounjaro for more than three months, you’ll need to show improvement in your A1C levels to continue coverage.
Coverage is typically approved for 12 months at a time. You may also face a quantity limit of four single-dose pens or vials every 28 days.
If CVS Caremark Manages Your Prescription Benefits
They may require you to try metformin first before approving Mounjaro. Their process typically involves checking whether you’ve filled at least a 30-day supply of metformin in the last six months under your prescription benefits.
If you haven’t tried metformin, your initial request for Mounjaro may be denied, and you’ll receive a notification that prior authorization (PA) is required.
You or your doctor will need to submit a prior authorization request, including a detailed explanation of why you need Mounjaro. CVS Caremark will review your case based on their criteria for medical necessity.
Step therapy protocols differ not only among insurance providers but also across states. To ensure accurate information and avoid delays, the best approach is to contact your insurance provider directly for details on their specific requirements and approval process.
Real-World Experiences with Mounjaro’s Step Therapy Policy
A Reddit discussion highlighted confusion over step therapy requirements for Mounjaro and similar medications. The original poster (OP) was concerned about insurance changes requiring patients to try metformin first, unsure if this applied to them as an existing Mounjaro user.
One user encouraged OP to call their insurer, sharing how a representative clarified their own policy and even suggested manufacturer coupons. OP later updated that their doctor confirmed they likely weren’t a “new start,” but they planned to increase their dosage to see if it triggered the rule. They humorously described this as “playing health roulette every month.”
Other commenters offered practical advice. One commenter shared a tip, explaining that filling a 90-day metformin prescription was enough, even without actually using the medication.
Another commenter raised an important question about proving prior use of metformin, especially if it had been prescribed years ago under a different insurance plan.
In the end, OP took proactive steps and scheduled a follow-up with their doctor to avoid disrupting the 42 lbs they’d lost on Mounjaro.
Exceptions to Step Therapy
A Step Therapy Exception is a process that lets patients skip the standard step therapy requirements imposed by their insurer in certain situations. This ensures you can access the medications you truly need, even if typical insurance rules would limit coverage.
It’s designed to prevent delays in your treatment, especially when a specific medication is critical to managing your condition.
How to Qualify for a Step Therapy Exception
You might be eligible for an exception if any of the following apply:
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- You’ve already tried the required drug, and it didn’t work for you.
- The drug has been ineffective in the past.
- The drug is expected to be ineffective based on your condition.
- The drug is likely to cause harm or severe side effects.
- The drug isn’t in your best interest from a medical perspective.
- You’re responding well to your current medication.
- The drug is contraindicated for your condition.
How to Apply for a Step Therapy Exception
The criteria and the process can differ depending on where you live. While federal guidelines set some standards, states often have their own rules. For example, in Oklahoma, under the SoonerCare Medicaid program, the process involves:
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- Your healthcare provider submits an exception request form, along with supporting documentation, to explain why the required step therapy drug isn’t appropriate for you (e.g., contraindications, adverse reactions, or ineffectiveness).
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- Approval is typically granted if the documentation shows the required drug is contraindicated, likely to cause harm, expected to be ineffective, or if you’re stable on your current medication.
Once the request is reviewed, the Oklahoma Health Care Authority (OHCA) may:
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- Approve the exception
- Deny the request, citing medical necessity
- Request additional information if documentation is missing or incomplete
- Notify you if you’re no longer eligible for coverage
- Inform you if the request can’t be processed due to submission errors
If you think you qualify for an exception, talk to your provider. They’ll know how to guide you through the process.
US State Regulations on Step Therapy Exception
Currently, 29 states have laws in place requiring insurers to provide a Step Therapy Exception when it is medically necessary.
According to an audit published by Cambridge University Press, the strength of these laws varies widely. The weakest step therapy laws are found in California, Oregon, and Missouri. In contrast, Ohio stands out as having the strongest law.
Below is a table outlining the primary reasons accepted in each of these states:
Timeline for Approval
In some states, if an insurer doesn’t respond to a Step Therapy Exception request within a specific time frame, the request is automatically approved. This ensures patients aren’t stuck waiting indefinitely for coverage decisions.
| For Urgent Cases | For Non-Urgent Cases | Applicable States |
|---|---|---|
| 72 hours | 5 calendar days | Iowa, Minnesota, South Dakota |
| 72 hours | 72 hours | Arkansas, Kansas |
| 1 business day | 3 business days | Indiana, Washington |
| 24 hours | 72 hours | California, Illinois, Louisiana, Maine, New Mexico, New York, North Carolina |
| 48 hours | 10 calendar days | Ohio |
| 24 hours | 48 hours | Oklahoma, Texas, Virginia |
| 24 hours | 2 business days | Delaware, Georgia |
Unfortunately, this is not the case in every state. In some states, insurers are not legally required to respond within a specific timeframe, which can lead to indefinite delays in patients accessing the medications they need. These states include:
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- Colorado
- Connecticut
- Kentucky
- Maryland
- Mississippi
- Missouri
- Oregon
- Wisconsin
- West Virginia
Regulations on Appeal Process
If your request is denied, you can appeal the decision. However, some states have no appeal process for denied Step Therapy Exception requests. This, unfortunately, leaves patients with no way to challenge an insurer’s decision. These states include:
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- California
- Colorado
- Kansas
- Kentucky
- Maryland
- Mississippi
- Missouri
- Oklahoma
- Oregon
- West Virginia
It’s worth noting that these laws might have changed or been updated since their publication, so it’s always a good idea to verify the current regulations with your state. Work closely with your healthcare and insurance provider to ensure your needs are met.
Tips for Patients Facing Step Therapy for Mounjaro
To successfully handle step therapy requirements for Mounjaro, you can take these steps:
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- Study your plan’s policy: Inquire about your insurance’s specific requirements for step therapy and note any exemptions for conditions like diabetes.
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- Prepare for alternatives: Discuss the required medications with your doctor and plan for how to document their effects if you need to try them first.
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- Show medical urgency: Ask your doctor to highlight why delaying Mounjaro could negatively impact your health, especially if you’ve struggled with alternatives before.
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- Create a compelling appeal: Include personal notes about past experiences with ineffective treatments to strengthen your case.
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- Ask for fast-tracking: If step therapy delays treatment, inquire about expedited appeal processes allowed for urgent cases.
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- Track everything: Keep a detailed log of insurer communications, medication responses, and appeal deadlines to stay organized.
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- Look for legal protections: Research state-specific laws that might override step therapy mandates for immediate access to medications.
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- Reach out for support: Join online diabetes communities or forums where others share tips and successful step therapy strategies.
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- Plan long-term: If step therapy becomes a recurring issue, review other insurance options with fewer barriers during open enrollment.
Takeaway
Step therapy can be frustrating when trying to access medications like Mounjaro. To get through this process, it helps to know your insurance plan’s rules, keep track of any treatments that didn’t work, and work with your doctor to request an exception if needed.
State laws can also impact your options, with some requiring insurers to respond quickly to exception requests or allow appeals for denials. Knowing these protections and staying organized can help you overcome delays. By being proactive and persistent, you can secure the medication that works best for your health.
Frequently Asked Questions
Related Articles
Sources
Lenahan, K. L., Nichols, D. E., Gertler, R. M., & Chambers, J. D. (2021). Variation In Use And Content Of Prescription Drug Step Therapy Protocols, Within And Across Health Plans. Health affairs (Project Hope), 40(11), 1749–1757. https://doi.org/10.1377/hlthaff.2021.00822
Steinberg, J., & Carlson, L. (2019). Type 2 Diabetes Therapies: A STEPS Approach. American family physician, 99(4), 237–243. PubMed. https://pubmed.ncbi.nlm.nih.gov/30763055/
Tharp, L., & Rothblatt, Z. (2021). Do patients benefit from legislation regulating step therapy? Health Economics Policy and Law, 17(3), 282–297. https://doi.org/10.1017/s1744133121000153
AETNA BETTER HEALTH. (2024). Coverage Policy/Guideline for Mounjaro. Retrieved from https://www.aetnabetterhealth.com/content/dam/aetna/medicaid/pdfs/formulary/guidelines/Mounjaro-Aetna-Medicaid-Policy-ua.pdf
CVS Caremark. (2023). STEP THERAPY CRITERIA FOR ANTIDIABETIC AGENTS. Retrieved from https://www.nhpri.org/wp-content/uploads/2023/03/Antidiabetic-Agents-ST-Post-PA-Policy-676-D-08-2022-v2.pdf




