Dojolvi is indicated as a source of calories and fatty acids for the treatment of pediatric and adult patients with molecularly confirmed long-chain fatty acid oxidation disorders (LC-FAOD).2 DOSAGE AND ADMINISTRATION 2.1 Recommended Dosage
Assess the metabolic requirements of the patient by determining their daily caloric intake (DCI) prior to calculating the dose of Dojolvi.
For patients receiving another medium-chain triglyceride (MCT) product, discontinue prior to the first dose of Dojolvi.
The recommended target daily dosage of Dojolvi is up to 35% of the patient’s total prescribed DCI divided into at least four doses and administered at mealtimes or with snacks.
In order to reach a target daily dosage, patients may require an increase in their total fat intake. All patients treated with Dojolvi should be under the care of a clinical specialist knowledgeable in appropriate disease-related dietary management based upon current nutritional recommendations.
The neonatal population may require higher fat intake and therefore an increased amount of Dojolvi. Current nutritional recommendations should be considered when dosing the neonatal population.
The total daily dosage is converted to a volume of Dojolvi to be administered in mL using the following calculation:
For patients not currently taking a MCT product
Initiate Dojolvi at a total daily dosage of approximately 10% DCI divided into at least four times per day and increase to the recommended total daily dosage of up to 35% DCI over a period of 2 to 3 weeks.
For patients switching from another MCT product
Discontinue use of MCT products before starting Dojolvi.
Initiate Dojolvi at the last tolerated daily dosage of MCT divided into at least four times per day. Increase the total daily dosage by approximately 5% DCI every 2 to 3 days until the target dosage of up to 35% DCI is achieved.
If a patient has difficulty tolerating 1/4 of the total daily dosage at one time, more frequent smaller doses may be considered [see Adverse Reactions (6.1)].
Monitor patients’ total caloric intake during dosage titration, especially in patients with gastrointestinal adverse reactions, and adjust all components of the diet as needed.
If a patient experiences gastrointestinal adverse reaction(s), consider dosage reduction until the gastrointestinal symptoms resolve [see Adverse Reactions (6.1)]. If a patient is unable to achieve the target daily dosage of up to 35% DCI during dosage titration, maintain the patient at the maximum tolerated dosage.2.3 Preparation and Administration Instructions
Administer Dojolvi mixed with semi-solid food or liquids orally or enterally via a silicone or polyurethane feeding tube. Do not administer Dojolvi alone to avoid gastrointestinal upset.
Prepare or administer Dojolvi using containers, dosing syringes or measuring cups made of compatible materials such as stainless steel, glass, high density polyethylene (HDPE), polypropylene, low density polyethylene, polyurethane and silicone.
Dojolvi is not compatible with certain plastics. Do not prepare or administer Dojolvi using containers, dosing syringes or measuring cups made of polystyrene or polyvinyl chloride (PVC) plastics.
Regularly monitor the containers, dosing components or utensils that are in contact with Dojolvi to ensure proper functioning and integrity.
Oral Preparation and Administration
Feeding Tube Preparation and Administration
Dojolvi can be administered via oral or enteral feeding tubes manufactured of silicone or polyurethane. Do not use feeding tubes manufactured of polyvinyl chloride (PVC). Feeding device performance and functionality can degrade over time depending on usage and environmental conditions. Regularly monitor the feeding tube to ensure proper functioning and integrity [see Warnings and Precautions (5.1)].
Preparation and Administration Instructions
If a dose is missed, take the next dose as soon as possible with subsequent doses taken at 3 to 4-hour intervals. Skip the missed dose if it will not be possible to take all four doses in a day.3 DOSAGE FORMS AND STRENGTHS
Oral liquid: clear, colorless to light yellow liquid supplied in 500 mL bottles containing 100% w/w of triheptanoin.4 CONTRAINDICATIONS
None.Warnings and Precautions 5.1 Feeding Tube Dysfunction
Feeding tube performance and functionality can degrade over time depending on usage and environmental conditions. In clinical trials, feeding tube dysfunction was reported in patients receiving triheptanoin. The contribution of Dojolvi cannot be ruled out. Do not administer Dojolvi in feeding tubes manufactured of polyvinyl chloride (PVC) [see Dosage and Administration (2.3)]. Regularly monitor the feeding tube to ensure proper functioning and integrity.5.2. Intestinal Malabsorption in Patients with Pancreatic Insufficiency
Pancreatic enzymes hydrolyze triheptanoin and release heptanoate as medium-chain fatty acids in the small intestine. Low or absent pancreatic enzymes may result in reduced absorption of heptanoate subsequently leading to insufficient supplementation of medium-chain fatty acids. Avoid administration of Dojolvi in patients with pancreatic insufficiency.6 ADVERSE REACTIONS 6.1 Clinical Trial 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 included 79 patients with LC-FAOD exposed to Dojolvi in two studies: one open-label 78-week study of Dojolvi in 29 patients (Study 1; NCT018863) followed by an open-label extension study (Study 2; NCT022141). Twenty-four patients from Study 1 continued into
Study 2. Patients ranged from 4 months to 63 years of age and the population was 52% male. Of the 79 patients, 87% were white, 5% were black or African-American, 4% were Asian and 4% other. The daily dosage of Dojolvi ranged between 12% and 41% DCI (which corresponds to 0.7 g/kg/day to 6.0 g/kg/day for pediatric patients and 0.5 g/kg/day to 1.3 g/kg/day for adult patients) for a mean duration of 23 months.
The most common adverse reactions to Dojolvi reported in the pooled safety population of Study 1 and Study 2 were gastrointestinal (GI)-related, and included abdominal pain (abdominal discomfort, abdominal pain, abdominal distension, abdominal pain upper, GI pain) [60%], diarrhea [44%], vomiting [44%], and nausea [14%].
Gastrointestinal (GI) Adverse Reactions
In Study 1 and Study 2, median time to onset of a first occurrence of a GI adverse reaction was 7.3 weeks. GI adverse reactions led to dose reductions in 35% and 12% of patients in Study 1 and Study 2, respectively.
In Study 3 (NCT01379625), a 4-month double-blind randomized controlled study, commonly reported adverse reactions with triheptanoin were similar to those reported in Study 1 and Study 2.7 DRUG INTERACTIONS 7.1 Pancreatic Lipase Inhibitors
Co-administration of triheptanoin with a pancreatic lipase inhibitor (e.g., orlistat) may reduce exposure to the triheptanoin metabolite, heptanoate, and reduce the clinical effect of triheptanoin [see Clinical Pharmacology (12.3)]. Avoid co-administration of Dojolvi with pancreatic lipase inhibitors.8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy
There are no available data on triheptanoin use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies conducted in pregnant rats and rabbits administered triheptanoin during the period of organogenesis, the primary toxicological effect (reduced body, weight gain) was considered to be specific to decreased food consumption related to taste aversion in animals, and therefore is not relevant to clinical use in the intended populations.
Advise women to report pregnancies to Ultragenyx Pharmaceutical Inc. at 1-888-756-8657.
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss or other adverse outcomes. 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.
Embryofetal developmental studies have been conducted with triheptanoin in rats and rabbits following oral administration of 10% (3.2 g/kg), 30% (9.7 g/kg) and 50% (16 g/kg) DCI in rats and 10% (1.2 g/kg), 20% (2.3 g/kg) and 30% (3.5 g/kg) DCI in rabbits during the period of organogenesis. Reduced body weight gain, associated with decreased food consumption, was observed in pregnant rats and rabbits following administration of triheptanoin food mixture and was attributed to taste aversion. The NOAEL for this maternal toxicity (lack of body weight gain) was 10% DCI for both rats and rabbits. Administration of dietary triheptanoin to pregnant rats at doses approximately 2 times above, and pregnant rabbits approximately equal to the targeted clinical dose of 35% DCI resulted in increased incidence of skeletal malformations and decreased litter weights in both species and reduced number of viable litters in rabbits. The adverse effects on rat and rabbit embryofetal development were associated with the reduced body weight gain observed in pregnant animals. The NOAEL for embryofetal development toxicity was 30% and 20% DCI for rats and rabbits, respectively. In a pre- and postnatal developmental study in rats, reduced birthweights and delayed sexual maturation in pups were observed at 50% DCI and were considered secondary to the reductions in body weight gain in pregnant rats.8.2 Lactation
There are no data on the presence of triheptanoin or its metabolites in human or animal milk, the effects on the breastfed infant, or the effects on milk production. Medium-chain triglycerides and other fatty acids are normal components of breastmilk and the composition of breastmilk varies within feedings, over stages of lactation, and between mothers and populations due to maternal factors including genetics, environment, and diet. The developmental and health benefits of breastfeeding should be considered along with the clinical need for Dojolvi and any potential adverse effect on the breastfed infant from Dojolvi or from the underlying condition.8.4 Pediatric Use
The safety and effectiveness of Dojolvi have been established in pediatric patients aged birth and older [see Adverse Reactions (6.1), Clinical Studies (14)].8.5 Geriatric Use
Clinical studies of Dojolvi did not include sufficient numbers of patients aged 65 and over to determine whether they respond differently from younger patients.11 DESCRIPTION
Dojolvi (triheptanoin) is a synthetic medium odd-chain (C7) triglyceride supplied as a colorless to light yellow clear oral liquid. The chemical name of triheptanoin is heptanoic acid, 1,1',1''-(1,2,3-propanetriyl) ester. The empirical formula is C24H44O6 and its molecular weight is 428.6 g/mol. The chemical structure is:
The caloric value of triheptanoin is 8.3 kcal/mL.12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action
Triheptanoin is a medium-chain triglyceride consisting of three odd-chain 7-carbon length fatty acids (heptanoate) that provide a source of calories and fatty acids to bypass the long-chain FAOD enzyme deficiencies for energy production and replacement.12.2 Pharmacodynamics
No formal pharmacodynamic studies have been conducted with Dojolvi.12.3 Pharmacokinetics
Following oral administration, triheptanoin is extensively hydrolyzed to heptanoate and glycerol by pancreatic lipases in the intestines. The exposure of triheptanoin in the human plasma is minimal. Pharmacokinetics of heptanoate exhibits high inter-patient variability. Heptanoate exposure increases greater than dose-proportional in the dose range between triheptanoin 0.3 and 0.4 g/kg.
The pharmacokinetics of heptanoate in healthy adult subjects following an oral administration of Dojolvi mixed with food are summarized in Table 1.
|Dojolvi Dose||Mean (SD) |
|Mean (SD) |
|Time to First Peak Concentration* |
|Single||0.3 g/kg||178.9 (145)||336.5 (223)||0.5 (0.4 to 1.0)|
|Dose||0.4 g/kg||259.1 (134)||569.1 (189)||0.8 (0.4 to 6.4)|
|Multiple Doses||0.3 g/kg administered 4 times a day for 2 days |
(total daily dosage of 1.3 g/kg/day)
|319.9 (164)||789.8 (346)||1.2 (0.0 to 2.4)|
* After oral administration of Dojolvi, more than one peak concentration of heptanoate is observed.
The plasma protein binding of heptanoate is approximately 80% and is independent of total concentration.
After a single dose of either 0.3 g/kg or 0.4 g/kg triheptanoin to healthy subjects, the mean apparent clearance (CL/F) of heptanoate was 6.05 and 4.31 L/hr/kg, respectively. Half-life (t1/2) of heptanoate could not be determined due to multiple peak concentrations of heptanoate observed.
Heptanoate, formed by hydrolysis of triheptanoin, can be metabolized to beta-hydroxypentanoate (BHP) and beta-hydroxybutyrate (BHB) in the liver.
After single or multiple repeat doses of triheptanoin to healthy subjects, triheptanoin and its metabolites were minimally excreted in urine.
Drug Interaction Studies
In Vitro Studies
Heptanoate is not an inhibitor of CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, or CYP3A4. Heptanoate and BHP are not CYP substrates nor UGT substrates. Heptanoate increases the unbound fraction of valproic acid by approximately 2-fold.13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility
Nonclinical animal studies evaluating long-term administration of triheptanoin have not been conducted to assess the carcinogenic potential of the drug. In a published chronic 9-month dietary study conducted in rats, daily administration of triheptanoin at dose levels up to 1.14 g/kg was associated with atrophy or hyperplasia of the intestinal villa. In a chronic 9-month dietary study conducted in juvenile minipigs, treatment with triheptanoin at dose levels up to 10 g/kg was well tolerated with no changes in histopathology suggestive of any carcinogenic potential.
Published studies with structurally similar triglycerides (i.e. MCTs) were also evaluated. In a 2-year dietary study of rats fed tricaprylin (C8 MCT) at dose levels up to 9.5 g/kg (approximately 1.2 times the anticipated maximum clinical dose), there were increased incidences of pancreatic and forestomach hyperplasia and adenomas but not carcinomas. Chronic administration of a diet containing approximately 17% MCT was not shown to promote effects on colon tumor incidence in an azomethane-induced colon tumorigenicity rat model.
Triheptanoin was not genotoxic in a battery of genotoxicity tests including the in vitro bacterial reverse mutation in S. typhimurium and E. coli, in vitro mammalian chromosomal aberration test in human peripheral blood lymphocytes and the in vivo mammalian erythrocyte micronucleus test in rat bone marrow.
Impairment of Fertility
Triheptanoin had no effect on fertility or any other parameters of mating performance in rats exposed to repeat dietary administration at dose levels equivalent to up to 50% daily caloric intake (16 g/kg) that resulted in systemic drug exposure (AUC) of heptanoate approximately equal to the maximum recommended human dose.14 CLINICAL STUDIES
The efficacy of triheptanoin as a source of calories and fatty acids was evaluated in Study 3, a 4-month double-blind randomized controlled study comparing triheptanoin (7-carbon chain fatty acid) with trioctanoin (8-carbon chain fatty acid). The study enrolled 32 adult and pediatric patients with a confirmed diagnosis of LC-FAOD and evidence of at least one significant episode of rhabdomyolysis and at least two of the following diagnostic criteria: disease specific elevation of acylcarnitines on a new born blood spot or in plasma, low enzyme activity in cultured fibroblasts, or one or more known pathogenic mutations in CPT2, ACADVL, HADHA, or HADHB.
The dosage of study drug was titrated to a protocol-specified target of 20% DCI (actual mean daily dose achieved was 16% for triheptanoin and 14% for trioctanoin). The recommended target dosage of Dojolvi is up to 35% of DCI [see Dosage and Administration (2.1)]. Patients ranged in age from 7 years to 64 years (median 24 years) and 12 were male.
Baseline cardiovascular function in both groups was normal and within test/retest variability normally observed in repeated echocardiograms. After 4 months, patients in both groups had similar mean changes from baseline in left ventricular ejection fraction and wall mass on resting echocardiogram and similar maximal heart rates on treadmill ergometry.
Five patients experienced 7 events of rhabdomyolysis in the triheptanoin group and 4 patients experienced 7 events of rhabdomyolysis in the trioctanoin group.
No differences were observed between triheptanoin and trioctanoin groups in blood markers of metabolism including glucose, insulin, lactate, total serum, ketones, acylcarnitines, and serum-free fatty acid concentrations.
How Supplied/Storage and Handling
Dojolvi (triheptanoin) oral liquid is supplied in glass bottles as follows:
|500 mL bottle||NDC 69794-050-50|
Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) (see USP Controlled Room Temperature). Do not freeze.
Opened bottles of Dojolvi can be used for up to 90 days after opening, but not beyond the expiration date on the bottle.
Do not dose or store using materials made of polystyrene or polyvinyl chloride (PVC) containers [see Dosage and Administration (2.3)].
Pharmacist: Dispense only in Glass or HDPE bottles.Patient Counseling Information
Advise the patient or caregiver to read the FDA-approved patient labeling (Patient Information).
Preparation and Administration
Instruct the patient or caregiver:
Instruct the patient or caregiver to store Dojolvi at room temperature in the bottle in which it was dispensed [see How Supplied/Storage and Handling (16)].
Feeding Tube Dysfunction
Advise the patient or caregiver to regularly inspect the feeding tube for proper functioning and integrity and report to the healthcare provider if any issues are identified [see Warnings and Precautions (5.1)].
Intestinal Malabsorption in Patients with Pancreatic Insufficiency
Inform the patient or caregiver that pancreatic insufficiency may reduce the clinical effect of Dojolvi. Any known pancreatic insufficiency should be reported to the healthcare provider [see Warnings and Precautions (5.2)].
Advise patients that there is a pregnancy safety study that collects pregnancy outcome data in women taking Dojolvi during pregnancy. Pregnant patients can enroll in the study by calling
Ultragenyx Pharmaceutical Inc.
60 Leveroni Court
Novato, CA 94949
|Patient Information |
|What is Dojolvi? |
Dojolvi is a prescription medicine used to treat long-chain fatty acid oxidation disorders (LC-FAOD) in children and adults.
|Before taking Dojolvi, tell your healthcare provider about all of your medical conditions, including if you: |
|How should I take Dojolvi? |
|What are the possible side effects of Dojolvi? |
|How should I store Dojolvi? |
|General information about the safe and effective use of Dojolvi. |
Medicines are sometimes prescribed for purposes other than those listed in a Patient Information Leaflet. Do not use Dojolvi for a condition for which it was not prescribed. Do not give Dojolvi to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about Dojolvi that is written for health professionals.
|What are the ingredients in Dojolvi? |
Dojolvi is made of 100% triheptanoin and contains no other ingredients.
Ultragenyx Pharmaceutical Inc.
60 Leveroni Court
Novato, CA 94949
For more information, go to www.Dojolvi.com or call 1-888-756-8657.
This Patient Information has been approved by the U.S. Food and Drug Administration. Issued: 06/2020
Instructions for Use
Read this Instructions for Use before you start taking Dojolvi and each time you get a refill. There may be new information. This leaflet does not take the place of talking to your healthcare provider about your medical condition or treatment.
Important information about Dojolvi:
Taking Dojolvi liquid by mouth:
Giving Dojolvi liquid by feeding tube:
How should I store Dojolvi?
Keep Dojolvi and all medicines out of the reach of children.
This Instructions for Use has been approved by the U.S. Food and Drug Administration.
Approved: 06/2020PRINCIPAL DISPLAY PANEL
Oral liquid, 100% w/w
|Labeler - Ultragenyx Pharmaceutical Inc. (962892019)|
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