What is LYTGOBI (futibatinib)?
LYTGOBI is a prescription medicine used to treat adults with a type of bile duct cancer called intrahepatic cholangiocarcinoma that has spread (metastatic) or cannot be removed by surgery. It is intended for patients who have already received previous treatment and whose tumors have an abnormal FGFR2 (fibroblast growth factor receptor 2) gene.
Before starting LYTGOBI, your healthcare provider will perform a test to confirm whether your cancer has this specific FGFR2 gene alteration.
LYTGOBI has not been established as safe or effective for use in children.
This medicine received accelerated FDA approval based on tumor shrinkage and the duration of response. Ongoing studies are underway to confirm whether LYTGOBI helps patients live longer or improves symptoms.
Important Safety Information
Possible Serious Side Effects Include:
1. Eye Problems:
Common but potentially serious. These include:
2. High Phosphate Levels in the Blood (Hyperphosphatemia):
This can lead to calcium and mineral buildup in tissues. Your doctor will monitor your phosphate levels and may:
- Common Side Effects Include:
- Changes in kidney or liver function tests
- High blood sugar
- Low red and white blood cell counts
- Nail problems or color changes
- Muscle pain, joint pain
- Fatigue or weakness
- Constipation or diarrhea
- Dry mouth, dry skin, dry eyes
- Mouth sores, abdominal pain
- Hair loss
- Nausea, vomiting, loss of appetite
- Taste changes
- Urinary tract infections
- Hand-foot syndrome (redness, swelling, or tenderness on palms/soles)
- This is not a complete list. Speak to your doctor or pharmacist for a full overview. You may also report side effects to the FDA at 1-800-FDA-1088.
Before Taking LYTGOBI, Tell Your Doctor If You:
- Have vision or eye issues
- Are pregnant or plan to become pregnant
LYTGOBI may harm your unborn baby or cause a miscarriage
A pregnancy test is required before starting treatment
Women should use effective birth control during treatment and for 1 week after the last dose
Men should use birth control with partners who can become pregnant during treatment and for 1 week after
Are breastfeeding or plan to breastfeed
Do not breastfeed during treatment or for 1 week after the last dose
Take any prescription, over-the-counter medications, vitamins, or herbal supplements
LYTGOBI may interact with other medications
- Diarrhea
- Constipation
- Low platelet count (thrombocytopenia)
- Peripheral neuropathy
- Nausea or vomiting
- Swelling (peripheral edema)
- Back pain
Serious side effects include:
- Severe thrombocytopenia
- Severe diarrhea
References
Clinical Study FOENIX-CCA2: Futibatinib in Patients With FGFR2-altered iCCA
ClinicalTrials.gov Identifier: NCT02052778, Taiho Oncology, Updated 2023
https://clinicaltrials.gov/ct2/show/NCT02052778
Prescribing Information: Lytgobi (futibatinib) [PDF]
Taiho Oncology, U.S. FDA, Sep 2022
https://www.accessdata.fda.gov/drugsatfda_docs/label/2022/215196s000lbl.pdf
Lytgobi (futibatinib) Receives Accelerated Approval from the U.S. FDA to Treat Intrahepatic Cholangiocarcinoma, FDA Press Release
U.S. Food and Drug Administration, Sep 2022
https://www.fda.gov/drugs/resources-information-approved-drugs/fda-grants-accelerated-approval-futibatinib-intrahepatic-cholangiocarcinoma
Patient Information: Lytgobi (futibatinib)
Taiho Oncology, Sep 2022
https://www.lytgobi.com
Full Prescribing Information: Lytgobi (futibatinib) [PDF]
Taiho Oncology, Sep 2022
https://www.taihooncology.com/us/assets/files/prescribing_info/LYTGOBI-PI.pdf