WINREVAIR

Indicated For

pulmonary arterial hypertension, PAH

About This Medication

# Merck Access Program Patient Guide: How to Get WINREVAIR (sotatercept-csrk) at Low or No Cost WINREVAIR (sotatercept-csrk) is a prescription medication used to treat adults with pulmonary arterial hypertension (PAH, WHO Group 1) to increase exercise capacity, improve time to clinical worsening, and reduce the risk of death.[1][8] The **Merck Access Program** helps eligible patients access WINREVAIR at low or no cost by covering copays, providing free medication through patient assistance, or offering other support based on your insurance and financial situation.[1][2][8] ## Who Qualifies for the Program? The Merck Access Program is open to U.S. residents with a valid prescription for WINREVAIR from a licensed U.S. healthcare provider.[5][6] Eligibility depends on **financial need** and **medical criteria**, including your insurance status. It's designed for patients who are commercially insured, Medicare patients, Medicaid patients, or uninsured.[program data] - **Financial eligibility**: Based on household income and other financial factors. Specific income thresholds aren't publicly listed online for WINREVAIR—contact the program at (888) 637-2502 for personalized details, as they assess cases individually.[program data][4] - **Medical criteria**: You must have a confirmed diagnosis and prescription for WINREVAIR. - **Residency**: Must be a U.S. resident. **Note**: Even if you're insured, you may qualify for copay assistance to reduce out-of-pocket costs. Uninsured patients may get free medication via referral to the Merck Patient Assistance Program (PAP).[4][5][6] ## About WINREVAIR (sotatercept-csrk) WINREVAIR is an injectable therapy given subcutaneously every 3 weeks by a healthcare provider. It's a first-in-class activin signaling inhibitor that targets the underlying cause of PAH by balancing proteins that affect blood vessel growth in the lungs. Common side effects include increased hemoglobin, telangiectasia (small red spots on skin), nosebleeds, and headaches. Always discuss risks and benefits with your doctor.[8] This program ensures more patients can access this life-changing treatment without financial barriers. ## Income Eligibility Breakdown Exact income limits for WINREVAIR aren't detailed publicly, but Merck programs generally use Federal Poverty Level (FPL) guidelines or fixed household income caps (e.g., similar to WELIREG: ≤$79,800 individual, ≤$108,200 couple, ≤$165,000 family of 4).[4][program data] Eligibility is determined case-by-case. | Household Size | Example Threshold (Similar Merck Programs) | Notes | |---------------|--------------------------------------------|-------| | Individual | ≤$79,800 | Contact program for WINREVAIR specifics; higher in AK/HI[4] | | Couple | ≤$108,200 | Gross annual household income before taxes[7] | | Family of 3 | Varies | Includes all members 15+; proof required[5][6] | | Family of 4 | ≤$165,000 | Adjustments for benefits like SSI, pensions[5] | **Important**: These are examples from other Merck programs. Call (888) 637-2502 to confirm WINREVAIR thresholds, as they consider total gross income from wages, Social Security, pensions, etc.[program data][7] ## Insurance Requirements The program supports all patients: - **Commercially insured**: Copay assistance to cap out-of-pocket costs. - **Medicare (Parts A/B/D, Advantage)**: Bridge programs or PAP referral if no coverage.[5][program data] - **Medicaid**: Limited support; check state rules. - **Uninsured**: Free medication via PAP if income-eligible.[4][6] Include front/back copies of insurance cards. Prior Authorization (PA) details may be needed.[1][5] ## Step-by-Step Application Process 1. **Talk to your doctor**: Discuss WINREVAIR and program options. Your healthcare provider (HCP) completes the provider section of the enrollment form.[1][8] 2. **Gather documents**: Enrollment form, patient consent, proof of income (pay stubs, benefit letters), proof of residency, insurance info.[program data][5][6] 3. **Choose application method** (multiple options): - **Online**: Visit https://www.merckaccessprogram-winrevair.com/hcc/enrollment/ and submit electronically.[program data][8] - **Phone**: Call (888) 637-2502 (Mon-Fri, similar programs 8AM-8PM ET).[program data][3] - **Download & Fax/Print**: Get form from website, HCP and patient sign, fax to program-specific number.[1] 4. **Sign consents**: Authorize disclosure of health/income info for eligibility verification.[5][7] 5. **Submit**: HCP submits or patient faxes with docs. Work with your HCP—many offices help complete forms.[1] ## Timeline and Delivery Processing time varies (not specified; typically weeks based on similar programs).[1] Once approved, medication ships directly to you via **Accredo or CVS Specialty Pharmacy**.[program data] Expect updates via phone/email. Refills require ongoing eligibility checks.[program data] ## Alternatives if Denied - **Appeal**: Submit additional docs or PA updates.[1][5] - **Other assistance**: State programs, NeedyMeds, PAN Foundation, or manufacturer samples. - **Biosimilars**: None available for WINREVAIR.[program data] - **Contact support**: Call (888) 637-2502 for guidance or PAP referral.[program data] ## Disclaimer This guide is for informational purposes based on available program data as of 2026. Eligibility isn't guaranteed; contact Merck at (888) 637-2502 for latest details. Not medical advice—consult your doctor. Program terms subject to change. Income examples from similar programs; verify for WINREVAIR.

Program information last verified: March 30, 2026