Vivian and Drake O’Sullivan, black-and-white portrait

Drake Rayden Foundation · Upstate South Carolina

Two children.One dose.The final inches.

Drake and Vivian were both born with NKH, a rare genetic disease with no approved treatment. A one-dose gene therapy is being made for them right now. Help fund the trial.

$1,347,790raised of $1,600,000
$0$400K$800K$1.2M$1.6M
$252,210 to go84% fundedLive
Drake · 10Vivian · 7Two of five O’Sullivan kids

Meet D & V

They can’t tell you their story. So their family does.

Drake and Vivian are nonverbal, medically complex and fiercely loved. Their big sisters and brother, Birkley, Harper-Kate and Rayph, call them “the littles.” Their mom and dad, Tarah and Eric, have spent ten years fighting a disease almost no one has heard of.

Drake O’Sullivan in a plaid shirt

Drake Rayden

Born October 13, 2016 · Age 10

He came home healthy. Three days later he was fighting for his life, and at one month old doctors sent him home on hospice. He’s now ten. He survived a 2022 cardiac arrest that should have taken him, and today he tells his family what he wants with an eye-gaze device.

  • Smiling on cue for “cheese”
  • Big sister reading him The Crippled Lamb
  • His dad’s arms
Vivian O’Sullivan smiling

Vivian Faye

Born August 21, 2019 · Age 7

Her name means “alive, lively, bubbling with life,” and she is. Within hours of her birth she was diagnosed with the same disease as her big brother. Most nights, NKH attacks her body from midnight to dawn. Every morning, she’s still Vivian.

  • Orange juice
  • Her “cutie oranges” birthday
  • Her brother

The problem

NKH does not play fair.

Nonketotic hyperglycinemia is a rare genetic disease. The body can’t break down glycine, an amino acid found in almost every food. It builds up in the brain and causes relentless seizures and lifelong disability. There is no approved treatment, and for 30 years families have had almost nothing.

What is NKH?

Vivian on oxygen, held by her mother
85%of children with NKH don’t see their first birthday, as the family cites it.
1 in 76Kbabies are born with NKH. There are only a few hundred known children worldwide.
0approved treatments that address the root cause. Until now, maybe.
Tarah and Eric O’Sullivan holding Vivian and Drake

Why it matters

“Rare should not mean disposable. Rare should not mean not valuable.”Tarah O’Sullivan, mom

Rare diseases rarely get research dollars. So a mom from Upstate South Carolina went back to school for biochemistry, and a family of seven built a foundation from their kitchen table. For ten years they’ve funded the research no one else would.

Most nights · after midnight

Vivian starts to scream again.

Eric has just laid down. He’s up with her three to five times a night.

Tarah goes in. Vivian is stiff as a board, arching, fighting in her crib.

“Shhh… you are safe. Mommy has you… just hang on.”

She slides to the floor beside the crib, cups her daughter in her arms, and prays.

“NKH does not play fair. It only knows one direction.”

“And now… right now… we finally have a treatment.”

Adapted from “Weary But Not Defeated,” Tarah O’Sullivan, September 2026

The breakthrough

A therapy that bears His name.

The family calls it EmetAbba, which means “Faithful Father.” It’s a one-dose gene therapy designed to give the body a working copy of the gene NKH breaks. It’s being manufactured right now, and a first-of-its-kind sibling trial is planned at MUSC in Charleston.

This is a first-in-human trial, so there are no guarantees. It’s hope backed by a decade of work, and if it works, it could help most children with NKH, not just Drake and Vivian.

Gene therapy research illustration
Drake is diagnosed

Sent home on hospice at one month old.

The foundation is born

Tarah and Eric start DRF to fund NKH research.

Gene therapy research begins

With UT Southwestern. Vivian is born with NKH.

Manufacturing contracts signed

After the He Is Enough night raised over half.

The final funding

Paid weekly as gifts arrive. This is where you come in.

The trial at MUSC

Drake and Vivian, first in line.

UT Southwestern · Gray LabAndelyn BiosciencesMUSC HealthUniversity of Notre DameClemson University

Two ways to help. Both matter.

Every dollar counts. So does every new set of eyes.

01 · Give

Cover an inch.

Your gift goes to manufacturing, which the foundation pays every week as gifts come in.

And pray. “Pray boldly… He is capable and He is faithful. But then give.” Each week the family shares specific prayer requests for the trial, the doctors and Drake and Vivian’s nights.

This week’s requests

The village

These are the people carrying them.

449 people and counting, listed alphabetically and never by amount. Every name is an inch someone chose to carry.

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“Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up.”

Galatians 6:9 · To God be the glory

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