kygevvi
Pharmaranks rates Kygevvi 3.5/5 for recall safety — an independent score from its FDA recall history and its manufacturer's record. Kygevvi is a combination medicine containing Doxecitine and Doxribtimine.
Doxecitine and Doxribtimine · by Ucb Inc
Based on 1 source · Recall-safety score from FDA recall history — this product's own recalls and its manufacturer's record. Not an efficacy or quality rating. methodology →
Key facts
What is Kygevvi?
From the FDA label:KYGEVVI is a combination of doxecitine and doxribtimine, both of which are pyrimidine nucleosides. KYGEVVI is a powder for oral solution. Both doxecitine and doxribtimine are white to off-white powders and soluble in water. Doxecitine The chemical name of doxecitine is 4-Amino-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one. The molecular formula is C 9 H 13 N 3 O 4 and the molecular weight is 227.22 g/mol. The chemical structure is: Doxribtimine The chemical name of doxribtimine is 1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione. The molecular formula is C 10 H 14 N 2 O 5 and the molecular weight is 242.23 g/mol. The chemical structure is: Each packet of KYGEVVI powder contains 2 grams doxecitine and 2 grams doxribtimine. The inactive ingredients are colloidal silicon dioxide and magnesium stearate. Chemical Structure Chemical Structure
How to use
Obtain baseline transaminase (alanine aminotransferase [ALT] and aspartate aminotransferase [AST]) levels in all patients prior to treatment initiation. ( 2.1 ) Recommended dosage ( 2.2 ): KYGEVVI Dosage Level KYGEVVI Dosage (mg/kg/day) Starting 260 mg/kg/day (consisting of 130 mg doxecitine and 130 mg doxribtimine) Intermediate 520 mg/kg/day (consisting of 260 mg doxecitine and 260 mg doxribtimine) Maintenance 800 mg/kg/day (consisting of 400 mg doxecitine and 400 mg doxribtimine) Titrate to the next dosage level based on tolerability after a minimum of 2 weeks at the current dosage level. ( 2.2 ) Administer KYGEVVI orally in 3 equally divided doses with food. ( 2.2 ) See full prescribing information for dosage and administration modifications, monitoring, and preparation and administration instructions. ( 2.4 ) Use KYGEVVI only with ZX2000 administration kit. ( 2.4 ) 2.1 Important Recommendation Prior to KYGEVVI Treatment Initiation Obtain baseline liver transaminase (alanine aminotransferase [ALT] and aspartate aminotransferase [AST]) and total bilirubin levels in patients prior to treatment initiation with KYGEVVI [see Dosage and Administration (2.3) and Warnings and Precautions (5.1) ] . 2.2 Recommended Dosage The recommended dosage of KYGEVVI is based on the patient's weight (Table 1). Titrate to the next dosage level based on tolerability after a minimum of 2 weeks at…
Side effects
The following clinically significant adverse reactions are described elsewhere in the labeling: Elevated Liver Transaminase Levels [see Warnings and Precautions (5.1) ] Gastrointestinal Adverse Reactions [see Warnings and Precautions (5.2) ] Most common adverse reactions (incidence ≥5%) are diarrhea, abdominal pain (including abdominal pain upper), vomiting, alanine aminotransferase increased (ALT), and aspartate aminotransferase increased (AST). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact UCB, Inc. at 1-844-599-2273 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of KYGEVVI was evaluated in a prospective, open-label, single-arm study in pediatric and adult patients with genetically confirmed TK2d previously treated with pyrimidine nucleosides (Trial 1). Additional safety information was derived from retrospective chart review studies (Study 1, Study 2) and from an expanded access program [see Clinical Studies (14) ] . Permanent discontinuation of KYGEVVI due to an adverse reaction occurred in 9% of patients (Trial 1, Study 1, and Study 2). The adverse reactions…
Warnings
Important safety information
Elevated Liver Transaminase Levels : Obtain baseline liver transaminase (ALT, AST) and total bilirubin levels prior to treatment initiation with KYGEVVI. If signs or symptoms consistent with liver injury are observed, interrupt treatment. Consider permanently discontinuing KYGEVVI if signs/symptoms consistent with liver injury persist or worsen. Monitor patients yearly and as clinically indicated. ( 5.1 ) Gastrointestinal Adverse Reactions : Reduce KYGEVVI dosage or interrupt treatment based on severity of diarrhea and/or vomiting. If persistent severe diarrhea and/or vomiting occurs, consider discontinuing KYGEVVI permanently. ( 5.2 ) 5.1 Elevated Liver Transaminase Levels Elevated liver transaminase [alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST)] levels were reported in patients treated with KYGEVVI [see Adverse Reactions (6.1) ] . In Study 1, two patients permanently discontinued treatment with KYGEVVI upon recurrence of elevated liver enzymes after a rechallenge at a reduced dose. Obtain baseline liver transaminase (ALT, AST) and total bilirubin levels in patients prior to treatment initiation with KYGEVVI. If signs or symptoms consistent with liver injury are observed, interrupt treatment with KYGEVVI until liver transaminase (ALT, AST) and total bilirubin levels have either returned to baseline or stabilized at a new baseline value. Consider permanently discontinuing KYGEVVI if signs or symptoms consistent with liver injury persist or worsen. Monitor liver transaminases and total bilirubin levels yearly and as clinically indicated [see Dosage and Administration (2.3) ] . 5.2 Gastrointestinal Adverse Reactions Diarrhea and vomiting leading to hospitalization, dose reduction, and permanent discontinuation were reported in patients treated with KYGEVVI [see Adverse Reactions (6.1) ] . Based on the severity of the diarrhea and/or vomiting, reduce the dosage of KYGEVVI or interrupt treatment until diarrhea and/or vomiting improves or returns to baseline. Consider restarting KYGEVVI at the last tolerated dose, and increase the dose as tolerated. For persistent or recurring diarrhea and/or vomiting, consider discontinuing KYGEVVI permanently and provide supportive care with electrolyte repletion as clinically indicated.
Who should not take Kygevvi
None. None. ( 4 )
Dosage forms
Powder
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
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Frequently asked questions
- How is Kygevvi rated?
- pharmaranks gives Kygevvi a composite score of 3.5 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.
- Is there a coupon or discount for Kygevvi?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Kygevvi. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Kygevvi?
- Kygevvi is marketed by Ucb Inc. You can see Ucb Inc's full profile, rating, and other products on pharmaranks.
- Is Kygevvi a brand-name or generic drug?
- Kygevvi is a brand-name product with the active ingredient Doxecitine and Doxribtimine.
- Is Kygevvi available over the counter?
- No. Kygevvi is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Kygevvi come in?
- Kygevvi is currently marketed as powder, per the FDA's National Drug Code Directory.
- Is Kygevvi FDA-registered?
- Kygevvi is on record with the U.S. FDA under application number NDA219792. You can verify this on its official FDA label.
- Has Kygevvi been recalled by the FDA?
- Kygevvi has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.
- Is Kygevvi safe?
- There's no single safe-or-not verdict. pharmaranks gives Kygevvi a recall-safety score of 70/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.
- What are the side effects of Kygevvi?
- Kygevvi's side effects are taken directly from its FDA label. From the label: The following clinically significant adverse reactions are described elsewhere in the labeling: Elevated Liver Transaminase Levels [see Warnings and Precautions (5.1) ] Gastrointestinal Adverse Reactions [see Warnings and Precautions (5.2) ] Most common adverse reactions (incidence ≥5%) are diarrhea… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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