Our Story
Why we built the supplement brand that should have already existed
It started with one patient
Out of respect for our patient's privacy and her oncologist's preference, we have chosen not to use names in this account. The clinical details are real. The journey is ours.
In early 2024, my wife was diagnosed with high-grade serous ovarian carcinoma, a rare and aggressive form of cancer affecting the ovaries, abdomen, and pelvis. She began treatment immediately, and what followed was nothing short of remarkable. By June 2024, her CA-125 tumor marker, the primary blood test used to track ovarian cancer activity, had dropped from 746.9 all the way down to 10.7. That is nearly normal. She was in remission. We exhaled for the first time in months.
It didn't last. By mid-2025, her CA-125 had begun climbing again, rising to 45.6. A CT scan in October 2025 confirmed what we feared, the cancer had returned and was now showing new growth in her abdomen and new nodules in her lungs. Her oncologist at MD Anderson Cancer Center in Houston, a physician we will call Dr. H., determined that the cancer had become platinum-resistant, meaning the chemotherapy drugs that had worked before were no longer effective. She did not qualify for available clinical trials. We were at a crossroads.
Testing revealed that her tumor expressed HER2 at a level called IHC 2+, a protein marker that made her eligible for a newer targeted therapy called ENHERTU (trastuzumab deruxtecan). On October 30, 2025, she started her first cycle. We were hopeful. But after five cycles, the results were clear, ENHERTU was not controlling the disease. Dr. H. made the decision to change course.
Additional molecular testing had shown that her tumor also expressed a protein called folate receptor alpha (FRα) at a high level, which made her eligible for a different targeted therapy called ELAHERE (mirvetuximab soravtansine). ELAHERE works by delivering chemotherapy directly to cancer cells that carry that FRα protein, leaving healthy cells largely untouched. She began ELAHERE treatment in 2026, continuing her care at MD Anderson under Dr. H.'s guidance.
As her husband and primary advocate through every one of these transitions, I threw myself into the research at each turn, clinical trials, drug mechanisms, integrative oncology protocols, and supplements. Because nearly 70% of cancer patients take supplements during treatment, and my wife wanted to do everything she could to support her body through every cycle. What I kept finding was a gap no supplement brand had filled. That gap became OncoCare.
THE MOMENT WE KNEW
The Moment We Knew
It was 2 AM. My wife was asleep in our bedroom. I was at the kitchen table on my laptop with several browser tabs open, printouts from PubMed, and a legal pad full of notes that were starting to look less like research and more like frustration and desperation.
She had just been switched to a new chemotherapy drug. Every supplement we had given her needed to now be re-evaluated from scratch. New drug. New mechanism. New interactions.
So I started with Amazon. I went to every supplement brand I could find. I Googled everything I could think of having to do with supplements. I went down hundreds of rabbit holes trying to figure out what she could take. I read all the hundreds of emails from friends telling me to watch the latest Instagram or TikTok reel on the latest cancer cure. What I found shocked me. People in cancer patient communities were recommending supplements that I knew from the clinical literature could interfere with the exact pathway her drug depended on to work. They were well-meaning, but they were approaching the problem the wrong way. No one had looked at a specific chemotherapy drug and asked, what does this patient actually need?
“She is not the only one doing this. There are hundreds of thousands of people on these drugs right now. And nobody has built anything to help them.”
That thought sat with me for a long time.
It was then that I opened a new document and started writing down what OncoCare needed to be. Not a general wellness brand. Not another supplement with a cancer ribbon on the label. Something built around the specific drug a patient is on, starting with the chemotherapy and working backward to figure out what the body needs, what the evidence actually supports, and what to leave out because it could undermine the treatment.
That was the Aha moment. Not a boardroom insight. A concerned husband at a kitchen table at 2 AM who could not find what his wife needed and decided to build it himself.
The gap nobody filled
I spent months building a supplement protocol from scratch , pulling peer-reviewed studies, checking drug interaction databases, researching the published guidance from integrative oncology programs including those at MD Anderson, and cross-referencing every ingredient against Judy's specific treatment profile. It was a full-time research job on top of being a full-time caregiver.
No cancer patient should have to do that. And no caregiver should have to become a clinical pharmacist to keep their loved one safe. The supplement market had completely failed this patient population , not out of malice, but out of indifference. General wellness brands aren't built for chemotherapy. They're built for healthy people who want to feel better. That's a completely different product.
What we built instead
OncoCare is the supplement brand cancer patients in active treatment actually need. Every formulation starts with the drug protocol, not the supplement aisle. We evaluate each ingredient against the target drug's mechanism, its CYP3A4 profile, its documented side effects, and the peer-reviewed literature specific to the target cancer type.
We launched with two indication-specific systems: OncoCare for Ovarian, built for patients on ELAHERE, and OncoCare for Breast, built for patients on ENHERTU (trastuzumab deruxtecan). The core formulation stack is 85% identical across both , which is itself a clinical insight. The differences are deliberate: Quercetin added for ENHERTU's black-box ILD risk, higher NAC for ENHERTU's GI burden, magnesium emphasis for ELAHERE's documented hypomagnesemia side effect.
What we put in matters. What we leave out matters just as much.
Our clinical philosophy
Interaction-Aware
Every ingredient is evaluated against the target drug's CYP3A4 profile and documented side effects before it enters a formulation.
Evidence-Specific
Doses are drawn from peer-reviewed studies in the target cancer type , not general supplement convention or manufacturer recommendations.
Exclusion-First
We are as rigorous about what we leave out as what we put in. High-dose antioxidants, immune stimulators, and CYP3A4 inhibitors are excluded by default.
About the founder
Fito Kahn
Founder, OncoCare™ | CEO, Learnetics
Fito Kahn is an entrepreneur, AI consultant, and author based in Austin, Texas. He is the founder of Learnetics, an AI consulting and education company, and Learnetics Music, an independent record label. OncoCare grew out of his experience as a primary caregiver and patient advocate for his wife Judy during her cancer treatment at MD Anderson Cancer Center. He built OncoCare's clinical framework from primary source research, physician coordination, and real-time supplement protocol management , and launched it to serve the patient population he wishes had been served when he needed it most.
Austin, Texas | 512-775-9270 | arkiii@gmail.com
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