Early onset cataracts sponsored testing program

Mirum Pharmaceuticals, in partnership with GeneDx, offers a no-cost genetic testing program for eligible patients with early onset cataracts.

Eligible patients will receive no-cost exome testing through this sponsored program.

What is Niemann-Pick disease Type C?

Niemann-Pick disease Type C (NPC) is a rare, progressive neurodegenerative, autosomal-recessive lysosomal storage disorder caused by pathogenic variants in the NPC1 or NPC2 genes. These variants cause dysfunction or loss of proteins that play a role in the way the body transports cholesterol and other lipids, which results in their accumulation in a compartment of the cell called the lysosome. This buildup affects every cell in the body but is most devastating in the brain and nervous system, driving progressive neurological decline and increased neuronal cell death in multiple organs and tissues.

NPC can present at any age. Symptoms can be non-specific and can vary based on age of onset, making diagnosis particularly challenging. Clinical features can vary widely between affected individuals and may include:

  • Developmental delay or regression
  • Early-onset cognitive decline or dementia
  • Progressive ataxia, dystonia, or spasticity
  • Vertical supranuclear gaze palsy
  • Dysphagia and/or dysarthria
  • Hepatomegaly or splenomegaly
  • Gelastic cataplexy
  • Sensorineural hearing loss
  • Seizures
  • Treatment-resistant psychiatric illness

Because symptoms frequently overlap with other neurological and metabolic disorders, comprehensive genomic testing can help establish an accurate diagnosis, inform clinical management, and identify patients who may benefit from disease-specific treatment options.

How does the program work?

To order ExomeDx™ follow the below steps, for rapid testing see the following section.

Eligibility

Eligibility criteria must be met.

Ordering

For portal orders, log in here or follow these steps to create an account. Provide the program code (STP-MIRUM-CAT) after adding ExomeDx™ (proband, duo, or trio) to your cart. For paper TRF orders, use this specific TRF.

Order a collection kit

This program requires a dedicated collection kit. Use this link to order a collection kit now.

Report

You will receive a comprehensive clinical report with expert interpretation of your patient’s results.

Billing

No claim will be submitted to a patient’s insurance. All tests are covered directly by Mirum Pharmaceuticals.

Forms

Test requisition form

Download TRF

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