Perrarus Perrarus (Latin): very rare, exceptional. Katharina Clark founded Perrarus in 2019 to raise awareness & support the members of the Rare Diseases Community.

Every purchase you make today will help to fight the unknown. We appreciate your support

In honor of Rare Disease Week on Capitol Hill 2025, the rare disease community—patients, caregivers, clinicians, researc...
02/26/2025

In honor of Rare Disease Week on Capitol Hill 2025, the rare disease community—patients, caregivers, clinicians, researchers, and advocates—is urging Congress to support continued leadership, funding for federal biomedical research, and public health agency resources. The petition, sent to Congress on Rare Disease Day (February 28), represents over 30 million Americans living with one or more of the 10,000 chronic rare diseases, most of which lack FDA-approved treatments.

The community emphasizes the critical role of federal agencies like the NIH, FDA, and CDC in enabling timely diagnoses, supporting insurance coverage for complex medical needs, advancing research, and fostering treatment development. Recent executive actions and the removal of key experts from these agencies threaten progress, economic stability, and patient care. The petition calls for steady, robust federal support to protect vital programs that profoundly impact millions of children and families affected by rare diseases.

How is Relapsing Polychondritis treated?Treatment for RP is currently focusedon managing symptoms and preserving the aff...
03/07/2023

How is Relapsing Polychondritis treated?Treatment for RP is currently focused
on managing symptoms and preserving the affected cartilage. RP is a complex condition that requires a team approach to patient care. credit:

Happy Rare Disease Week! It was wonderful connecting with old friends and making new connections. Thank you for organizi...
03/03/2023

Happy Rare Disease Week! It was wonderful connecting with old friends and making new connections. Thank you for organizing a wonderful event and It was a week fulfilled with science 🧬 research and advocacy.

Thank you  for hosting another wonderful Rare Disease Week at Capitol.
03/02/2023

Thank you for hosting another wonderful Rare Disease Week at Capitol.

02/28/2023

Today is the International Day of Persons with Disabilities!According to  :♿️ Around 15% of the world population experie...
12/03/2022

Today is the International Day of Persons with Disabilities!

According to :

♿️ Around 15% of the world population experiences disability. It is the largest minority - affecting 1 billion people worldwide.
And:
📢 This year's theme is 'Not All Disabilities are Visible'.
Most importantly:
The impact of "invisible" diseases like mental health disorders, chronic pain and fatigue cannot be ignored.
👋 Help make a difference and join us in raising awareness!
   


📷 credit 📝 credit

12/02/2022

✨Friday Feature✨How 🐨 Koala is That Diecut Sticker.

Our diecut stickers provide a fun design to add to your laptop or tablet. Wherever you are working that day, these encouraging phrases and animal designs will brighten your day! They will also send an encouraging message to anyone else who passes you by.

These stickers are also available in our other two lines:
Have a 🦥Sloth Day
🐼Panda Hugs to You

🖱️Click to view our shop and 👩‍💻 purchase.


Ever wonder what the word Perrarus means?Perrarus is derived from Latin, meaning: very rare, exceptional.The Perrarus wa...
11/29/2022

Ever wonder what the word Perrarus means?

Perrarus is derived from Latin, meaning: very rare, exceptional.

The Perrarus was founded in 2019 to raise awareness & support the members of the rare diseases community.

Perrarus's founder, Katharina Clark, has two rare diseases. The first she was diagnosed with in 2018 - Adult-Onset Still’s Disease. The second she was diagnosed in 2020 - Relapsing Polychondritis. She has been featured on Patient Worthy for her advocacy in the rare disease community.

Her compassion and drive motivated her to create the Perrarus. The products are supposed to bring more than a smile, but kindness, education, and research on

Follow Perrarus to learn more about awareness and support a .




11/25/2022

Today is the last day to shop our Black Friday Sale. Use code BF10 to for 10% off your order.

Shop here: https://www.theperrarus.com/hoodies-sweatshirts

All phrases were created by founder Katharina Clark, the visionary behind Perrarus. Read more about her mission behind creating the Perrarus by visiting the store on instagram or via the link in bio.

Happy Shopping!

📣 Only a few days left to snag our Black Friday deal 📣Whether it's a 🎀 gift for yourself or a loved one, our custom desi...
11/23/2022

📣 Only a few days left to snag our Black Friday deal 📣

Whether it's a 🎀 gift for yourself or a loved one, our custom designs will be sure to bring a smile to your faces. :)

For the coffee or tea drinker - our custom illustrated mugs are a perfect way to brighten your day.

For those looking to bring some flare to their dresswear all while raising awareness for - consider our signature unisex tee or hoodie. Holiday colors available!

Use code BF10 to receive 10% off your order today through 11/26.

11/18/2022

Happy Fri-yay!

Celebrate the end of the week by treating yourself to one of Perrarus signature products! Use code BF10 for 10% off your purchase.

From stickers, mugs, to apparel - we have products that will bring a smile to your face with our animal illustrations + motivational taglines

One of our favorites to go into the weekend is this phrase:
"Have a Sloth Day"

It reminds us to slow down and rest. You deserve it!

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Washington D.C., DC

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