Tovorafenib
FDA Drug Information • Also known as: Ojemda
- Brand Names
- Ojemda
- Drug Class
- Kinase Inhibitor [EPC]
- Route
- ORAL
- Dosage Form
- TABLET, FILM COATED
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
11 DESCRIPTION OJEMDA contains tovorafenib, a kinase inhibitor. Tovorafenib has the molecular formula C 17 H 12 Cl 2 F 3 N 7 O 2 S and a molecular weight of 506.29. The chemical name for tovorafenib is 6-amino-5-chloro-N-[(1R)-1-[5-[[[5-chloro-4-(trifluoromethyl)-2-pyridinyl]amino]carbonyl]-2-thiazolyl]ethyl]-4-pyrimidinecarboxamide. Tovorafenib has the following chemical structure: It is a white to off-white powder. The solubility of tovorafenib at 37ºC is ≤ 3 micrograms/mL from pH 1.2 to 8 in aqueous media. OJEMDA (tovorafenib) tablets are supplied as 100 mg strength tablets for oral administration. Each tablet contains 100 mg tovorafenib and the following inactive ingredients: copovidone, colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, and orange film coating (hypromellose, polyethylene glycol 8000, titanium dioxide, ferric oxide yellow, ferric oxide red). OJEMDA (tovorafenib) for oral suspension is a white to off white powder which produces a white suspension when reconstituted with water. Each mL of reconstituted tovorafenib suspension contains 25 mg of tovorafenib and the following inactive ingredients: artificial strawberry flavor, colloidal silicon dioxide, copovidone, maltodextrin, mannitol, microcrystalline cellulose, simethicone, sodium lauryl sulfate, and sucralose. Chemical Structure
What Is Tovorafenib Used For?
1 INDICATIONS AND USAGE OJEMDA is indicated for the treatment of patients 6 months of age and older with relapsed or refractory pediatric low-grade glioma (LGG) harboring a BRAF fusion or rearrangement, or BRAF V600 mutation. This indication is approved under accelerated approval based on response rate and duration of response [see Clinical Studies (14) ]. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). OJEMDA is a kinase inhibitor indicated for the treatment of patients 6 months of age and older with relapsed or refractory pediatric low-grade glioma (LGG) harboring a BRAF fusion or rearrangement, or BRAF V600 mutation. ( 1 ) This indication is approved under accelerated approval based on response rate and duration of response [see Clinical Studies (14) ]. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).
Dosage and Administration
2 DOSAGE AND ADMINISTRATION Confirm the presence of BRAF fusion or rearrangement, or BRAF V600 mutation prior to initiation of treatment with OJEMDA. ( 2.1 ) Recommended dosage of OJEMDA is based on body surface area ( see Tables 1 and 2 ). ( 2.3 ) Administer OJEMDA orally, once weekly, with or without food. ( 2.3 , 2.4 ). Tablets : Swallow tablets whole with water. Do not chew, cut, or crush. ( 2.4 ) For Oral Suspension : See full prescribing information for preparation and administration instructions. ( 2.4 ) 2.1 Patient Selection Select patients for treatment with OJEMDA based on the presence of BRAF fusion or rearrangement, or BRAF V600 mutation in tumor specimens [see Clinical Studies (14) ]. Information on FDA-approved tests for the detection of BRAF fusions, BRAF rearrangements, and BRAF V600 mutations is available at http://www.fda.gov/companiondiagnostics . 2.2 Recommended Testing Before Initiating OJEMDA Before initiating OJEMDA, evaluate liver function tests, including ALT, AST and bilirubin [see Warnings and Precautions (5.3) ]. 2.3 Recommended Dosage The recommended dosage of OJEMDA based on body surface area (BSA) is 380 mg/m 2 orally once weekly (the maximum recommended dosage is 600 mg orally once weekly) with or without food [see Administration (2.4) and Clinical Pharmacology (12.3) ] until disease progression or intolerable toxicity. OJEMDA may be administered as an immediate release tablet (see Table 1 ) or as an oral suspension (see Table 2 ). A recommended dosage for patients with BSA less than 0.3 m 2 has not been established. Table 1 Recommended OJEMDA Tablets Dosage Based on Body Surface Area Body Surface Area (m 2 ) Recommended Dosage 0.30-0.89 Administer OJEMDA oral suspension once weekly (see Table 2 ) 0.90-1.12 400 mg once weekly 1.13-1.39 500 mg once weekly ≥ 1.40 600 mg once weekly Table 2 Recommended Dosage for OJEMDA for Oral Suspension Based on Body Surface Area Body Surface Area (m 2 ) Dose Volume (mL) OJEMDA for oral suspension has a concentration of 25 mg/mL. Each bottle of OJEMDA for oral suspension delivers 300 mg/12 mL. Dosage 0.30-0.35 5 125 mg once weekly 0.36-0.42 6 150 mg once weekly 0.43-0.48 7 175 mg once weekly 0.49-0.54 8 200 mg once weekly 0.55-0.63 9 225 mg once weekly 0.64-0.77 11 275 mg once weekly 0.78-0.83 12 300 mg once weekly 0.84-0.89 14 350 mg once weekly 0.90-1.05 15 375 mg once weekly 1.06-1.25 18 450 mg once weekly 1.26-1.39 21 525 mg once weekly ≥1.40 24 600 mg once weekly Continue once weekly dosing until disease progression or intolerable toxicity. 2.4 Administration Take OJEMDA at a regularly scheduled time once weekly. OJEMDA may be taken with or without food [see Clinical Pharmacology (12.3) ]. If a dose is missed by: 3 days or less, take the missed dose as soon as possible, and take the next dose on its regularly scheduled day. more than 3 days, skip the missed dose and take the next dose on its regularly scheduled day. If vomiting occurs immediately after taking a dose, repeat...
Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Hemorrhage [see Warnings and Precautions (5.1) ] Skin Toxicity Including Photosensitivity [see Warnings and Precautions (5.2) ] Hepatotoxicity [see Warnings and Precautions (5.3) ] Effect on Growth [see Warnings and Precautions (5.4) ] The most common adverse reactions (≥30%) were rash, hair color changes, fatigue, viral infection, vomiting, headache, hemorrhage, pyrexia, dry skin, constipation, nausea, dermatitis acneiform, and upper respiratory tract infection. ( 6.1 ) The most common Grade 3 or 4 laboratory abnormalities (≥2%) were decreased phosphate, decreased hemoglobin, increased creatine phosphokinase, increased alanine aminotransferase, decreased albumin, decreased lymphocytes, decreased leukocytes, increased aspartate aminotransferase, decreased potassium, and decreased sodium. To report SUSPECTED ADVERSE REACTIONS, contact Day One Biopharmaceuticals at toll-free phone # 1-877-204-2820 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 population described in WARNINGS AND PRECAUTIONS reflects exposure to OJEMDA taken orally once weekly at a dose based on body surface area [see Clinical Studies (14) ] in 140 patients with relapsed or refractory pediatric LGG or advanced solid tumors harboring a RAF alteration and a flat dose of 600 mg in 32 adult patients with advanced solid tumors until disease progression or intolerable toxicity. Among 172 patients treated with OJEMDA, 86% were exposed for 6 months or longer and 49% were exposed for 1 year or longer. Pediatric Low-grade Glioma The safety of OJEMDA was evaluated in 137 patients with relapsed or refractory pediatric LGG harboring a BRAF alteration in FIREFLY-1 (Arms 1 and 2) [see Clinical Studies (14) ]. Patients received OJEMDA at a dose based on body surface area [see Dosage and Administration (2.3 ] orally once weekly until disease progression or intolerable toxicity. The median age of patients was 9 years (range 1 to 24 years); 53% male; 58% White, 7% Asian, 2% Black or African American, 6% other races, 25% race was not reported; 2.9% were Hispanic or Latino; and 90% Karnofsky/Lansky performance status of 80 to 100. Serious adverse reactions occurred in 45% of patients who received OJEMDA. Serious adverse reactions in >2% of patients included viral infection (9%), pneumonia (4%), and sepsis (4%). A fatal adverse reaction of tumor hemorrhage occurred in 1 patient (1%). Permanent discontinuation of OJEMDA due to an adverse reaction occurred in 7% of patients. Adverse reactions which resulted in permanent discontinuation of OJEMDA in more than one patient were tumor hemorrhage and reduction in growth velocity. Dosage interruptions of OJEMDA due to an adverse reaction occurred in 57% of patients. Adverse reactions which required dose interruption in ≥5% of patients included rash, pyrexia, vomiting, and hemorrhage. Dosage reductions of OJEMDA due to an adverse reaction occurred in 24% of patients. Adverse reactions which required dose reduction in ≥2% of patients included rash, and fatigue. The most common adverse reactions (≥30%) were rash, hair color changes, fatigue, viral infection, vomiting, headache, hemorrhage, pyrexia, dry skin, constipation, nausea, dermatitis acneiform, and upper respiratory tract infection. The most common Grade 3 or 4 laboratory abnormalities (≥2%) were decreased phosphate, decreased hemoglobin, increased creatine phosphokinase, increased alanine aminotransferase, decreased albumin, decreased lymphocytes, decreased leukocytes, increased aspartate transferase, decreased potassium, and decreased sodium. Table 6 and Table 7...
Drug Interactions
7 DRUG INTERACTIONS Moderate and Strong CYP2C8 Inhibitors : Avoid coadministration with OJEMDA. ( 7.1 ). Moderate and Strong CYP2C8 Inducers : Avoid coadministration with OJEMDA. ( 7.1 ). Certain CYP3A Substrates : Avoid coadministration of OJEMDA with CYP3A substrates where minimal concentration changes can cause reduced efficacy. ( 7.2 ). Hormonal contraceptives : Avoid coadministration with OJEMDA. ( 7.2 ). 7.1 Effects of Other Drugs on OJEMDA Table 8 describes drug interactions where coadministration with another drug affects OJEMDA. Table 8 Coadministration with Other Drugs that Affect the Use of OJEMDA Strong or Moderate CYP2C8 Inhibitors Prevention or Management Avoid coadministration of OJEMDA with a strong or moderate CYP2C8 inhibitor. Mechanism and Clinical Effect(s) Tovorafenib is a CYP2C8 substrate. Strong or moderate CYP2C8 inhibitors are predicted to increase tovorafenib exposure based on a mechanistic understanding of its elimination [see Clinical Pharmacology (12.3) ], which may increase the risk of adverse reactions with OJEMDA. Strong or Moderate CYP2C8 Inducers Prevention or Management Avoid coadministration of OJEMDA with a strong or moderate CYP2C8 inducer. Mechanism and Clinical Effect(s) Tovorafenib is a CYP2C8 substrate. Strong or moderate CYP2C8 inducers are predicted to decrease tovorafenib exposure based on a mechanistic understanding of its elimination [see Clinical Pharmacology (12.3) ], which may reduce the effectiveness of OJEMDA. 7.2 Effects of OJEMDA on Other Drugs Table 9 describes drug interactions where coadministration with OJEMDA affects another drug. Table 9 Coadministration with OJEMDA that Affects the Use of Other Drugs CYP3A Substrates Prevention or Management Hormonal Contraceptives : Avoid coadministration of hormonal contraceptives with OJEMDA. If coadministration is unavoidable, use an additional effective nonhormonal contraceptive method during coadministration and for 28 days after discontinuation of OJEMDA. Other CYP3A Substrates: Avoid coadministration of OJEMDA with certain CYP3A substrates where minimal concentration changes may lead to serious therapeutic failures. If coadministration is unavoidable, monitor patients for loss of efficacy unless otherwise recommended in the Prescribing Information for CYP3A substrates. Mechanism and Clinical Effect(s) Tovorafenib is a CYP3A inducer. Tovorafenib is predicted to decrease exposure of certain CYP3A substrates where minimal concentration changes may lead to serious therapeutic failures [see Clinical Pharmacology (12.3) ], which may reduce the effectiveness of these substrates. Coadministration with hormonal contraceptives (CYP3A substrate) may decrease progestin-x and ethinyl estradiol exposure, which may lead to contraceptive failure and/or an increase in breakthrough bleeding [see Warnings and Precautions (5.5) , Use in Specific Populations (8.3) ].
Contraindications
4 CONTRAINDICATIONS None . None. ( 4 )
Pregnancy and Breastfeeding
8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action [see Clinical Pharmacology (12.1) ], OJEMDA can cause fetal harm when administered to a pregnant woman. There are no available data on the use of OJEMDA in pregnant women. Oral administration of tovorafenib to pregnant rats during the period of organogenesis resulted in embryo lethality at exposures 0.8 times the human exposure at the recommended dose based on AUC ( see Data ). Advise pregnant women of the potential risk to a fetus. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data In an embryo-fetal development study, once daily oral administration of tovorafenib to pregnant rats during the period of organogenesis from gestation days 7 through 17 at doses of 37.5, 75, and 150 mg/kg resulted in early resorptions and total litter loss at all doses. The dose of 37.5 mg/kg/day is approximately 0.8-fold the human exposure at the recommended dose based on AUC.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING OJEMDA tablets: 100 mg: orange, film-coated, oval tablets debossed with "100" on one side and "D101" on the opposite side and supplied as follows: Weekly dose Each carton contains Each blister card contains NDC 400 mg 4 blister cards four 100 mg tablets NDC 82950-001-16 500 mg 4 blister cards five 100 mg tablets NDC 82950-001-20 600 mg 4 blister cards six 100 mg tablets NDC 82950-001-24 Store at 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Dispense product in the original package. Tablets should not be removed from blister cards until immediately before use. OJEMDA for oral suspension: 25 mg/mL: white to off white powder in a clear glass bottle, co-packaged with a press-in bottle adaptor and a 20 mL oral dosing syringe (NDC# 82950-012-01). Each mL of reconstituted, strawberry flavored tovorafenib suspension contains 25 mg of tovorafenib. Each bottle delivers 300 mg of tovorafenib in 12 mL. Store at 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Do not use if safety seal under cap is broken or missing. Suspension must be used immediately after reconstitution. Discard the bottle (including any unused portion) and syringe after dosing.
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.