Posology
The dosage should be adapted to the patients' individual requirements.
It is recommended that Omeflex special be administered continuously. A stepwise increase of the infusion rate over the first 30 minutes up to the desired infusion rate avoids possible complications.
Adults
The maximum daily dose amounts to 35 ml / kg body weight, corresponding to
2.0 g amino acids / kg body weight per day
5.04 g glucose / kg body weight per day
1.4 g lipid / kg body weight per day.
The maximum rate of infusion is 1.7 ml / kg body weight per hour, corresponding to
0.1 g amino acids / kg body weight per hour
0.24 g glucose / kg body weight per hour
0.07 g lipid / kg body weight per hour.
For a patient weighing 70 kg this corresponds to a maximum infusion rate of 119 ml per hour. The amount of substrate administered is then 6.8 g of amino acids per hour, 17.1 g of glucose per hour and 4.8 g of lipids per hour.
Paediatric population
Newborn infants, infants and toddlers less than two years of age
Omeflex special is contraindicated in newborn infants, infants and toddlers < 2 years of age in whom the amino acid cysteine may be considered conditionally essential (see section 4.3).
Children from 2 – 18 years of age.
No clinical studies were performed in the paediatric population.
Omeflex special can provide only a basic nutrient and energy supply to the paediatric patients. Depending on the individual need Carnitine supplementation may be considered in paediatric patients expected to receive PN for more than 4 weeks.
The exact dosage depends on the patient's energy expenditure and the ability to metabolize the active ingredients of Omeflex special and therefore, should be individually adapted according to age, body weight, clinical condition and underlying disease.
Due to the individual needs of paediatric patients, Omeflex special may not cover sufficiently the total energy, nutrient, electrolyte and fluid requirements. In such cases additional amino acids, carbohydrates and/or lipids, minerals and/or fluids must be provided in addition, as appropriate.
For calculation of dosage account must be taken of the hydration status of the paediatric patient.
The bag size should be chosen accordingly.
In addition, the daily fluid, glucose and energy requirements decrease with age. Thus, two age groups, from 2 to 12 years and 12 to 18 years, are considered.
Maximum daily dose
According to the paediatric guidelines the dose depends not only on the age but also on the medical condition (acute, stable and recovery phase) of the paediatric patient.
For Omeflex special in the age group 2 to 12 years the magnesium concentration is the limiting factor for the maximum daily dose in all medical conditions.
For patients from 12 to 18 years the glucose concentration becomes the limiting factor in the acute and stable phase while in the recovery phase the magnesium concentration is limiting.
The resulting maximum daily doses are given in the table below.
| | 2 to ≤ 12 years | 12 to 18 years |
| | Recommended | Omeflex special | Recommended | Omeflex special |
| | | Acute phase | Stable Phase | Recovery phase | | Acute phase | Stable Phase | Recovery phase |
| Maximum daily dose [ml/kg/d] | | 24 | | 9.5 | 20 | 24 |
| | | corresponding to | | corresponding to |
| Fluids [ml/kg/d] | 60 - 100 | 24 | 50 - 70 | 9.5 | 20 | 24 |
| Amino acids [g/kg/d] | 1.0 - 2.0 (2.5) | 1.34 | 1.0 - 2.0 | 0.53 | 1.12 | 1.34 |
| Glucose [g/kg/d] | | | | |
| Acute phase | 1.4 – 3.6 | 3.46 | 0.7 – 1.4 | 1.37 | - | - |
| Stable phase | 2.2 – 5.8 | 1.4 – 2.9 | - | 2.88 | - |
| Recovery phase | 4.3 – 8.6 | 2.9 – 4.3 | - | - | 3.46 |
| Lipids [g/kg/d] | ≤ 3 | 0.96 | ≤ 3 | 0.38 | 0.8 | 0.96 |
| Energy [kcal/kg/d] | | | | |
| Acute phase | 30 - 45 | 28.3 | 20 - 30 | 11.2 | - | - |
| Stable phase | 40 - 60 | 25 - 40 | - | 23.6 | - |
| Recovery phase | 55 - 75 | 30 - 55 | - | - | 28.3 |
| Sodium [mmol/kg/d] | 1 - 3 | 1.29 | 1 - 3 | 0.51 | 1.07 | 1.29 |
| Potassium [mmol/kg/d] | 1 - 3 | 0.9 | 1 - 3 | 0.36 | 0.75 | 0.90 |
| Calcium [mmol/kg/d] | 0.25 - 0.4 | 0.10 | 0.25 - 0.4 | 0.04 | 0.08 | 0,10 |
| Magnesium [mmol/kg/d] | 0.1 | 0.10 | 0.1 | 0.04 | 0.08 | 0,10 |
| Chloride [mmol/kg/d] | 2 - 4 | 1.15 | 2 - 4 | 0.46 | 0.96 | 1.15 |
| Phosphate [mmol/kg/d] | 0.2 - 0.7 | 0.38 | 0.2 - 0.7 | 0.15 | 0.32 | 0.38 |
| Acute phase = resuscitation phase when the patient requires vital organ support (sedation, mechanical ventilation, vasopressors, fluid resuscitation); Stable phase = patient is stable on, or can be weaned, from this vital support; Recovery phase = patient who is mobilizing. |
For children, it might be necessary to start the nutritional therapy with half of the target dosage. The dosage should be increased stepwise according to the individual metabolic capacity up the maximum dosage.
Maximum infusion rate
According to the paediatric guidelines the maximum infusion rate depends not only on age but also on the medical condition (acute, stable and recovery phase) of the paediatric patient.
For Omeflex special the glucose infusion rate is the limiting factor for both paediatric age groups in all medical conditions.
The resulting maximum hourly infusions rates are given in the table below.
| | Paediatric age group |
| | 2 to ≤ 12 years | 12 to 18 years |
| | Recommended | Omeflex special | Recommended | Omeflex special |
| | | Acute phase | Stable Phase | Recovery phase | | Acute phase | Stable Phase | Recovery phase |
| Maximum infusion rate [ml/kg/h] | | 0.63 | 1.25 | 1.67 | | 0.42 | 0.83 | 1,25 |
| | | corresponding to | | corresponding to |
| Amino acids [g/kg/h] | ≤ 0.1 | 0.035 | 0.07 | 0.094 | ≤ 0.1 | 0.024 | 0.046 | 0.07 |
| Glucose [g/kg/h] | | | | | | | | |
| Acute phase | 0.09 | 0.09 | - | - | 0.03 – 0.06 | 0.06 | - | - |
| Stable phase | 0.09 - 0.18 | - | 0.18 | - | 0.06 – 0.12 | - | 0.12 | - |
| Recovery phase | 0.18 - 0.24 | - | - | 0.24 | 0.12 – 0.18 | - | - | 0.18 |
| Lipids [g/kg/h] | ≤ 0.15 | 0.025 | 0.05 | 0.067 | ≤ 0.15 | 0.017 | 0.033 | 0.05 |
Patients with renal/hepatic impairment
The doses should be adjusted individually in patients with hepatic or renal insufficiency (see also section 4.4).
Patients with intradialytic parenteral nutrition (IDPN)
Intradialytic parenteral nutrition is intended for non-acutely ill malnourished dialysis patients where nutritional counselling or treatment with oral nutritional supplements was ineffective. The selection of the appropriate Omeflex Special volume to be used for IDPN should be guided by the gap between spontaneous intakes and the recommended intakes. Additionally, metabolic tolerance needs to be taken into consideration. For Omeflex special in patients on IDPN, the maximum hourly infusion rate is 2.3 ml/kg/hour, corresponding to 0.13 g/kg/hour amino acids, 0.33 g/kg/hour glucose, and 0.092 g/kg/hour lipids administered for 4 hours. Taking into consideration the known amino acid (retention rate 73%) and glucose losses (25g/ 4-hour dialysis session) during dialysis the patient will finally receive 0.095 g/kg/hour amino acids, 0,24 g/kg/hour glucose and 0.092 g/kg/hour lipids. For a 70 kg patient and a 4-hour dialysis session this corresponds to 27 g of amino acids, 67 g of glucose, 26 g of lipids and 644 ml of fluid.
Duration of treatment
The duration of treatment for the indications stated is not limited. During the administration of Omeflex special it is necessary to provide an appropriate amount of trace elements and vitamins.
Duration of infusion of one single bag
The recommended duration of infusion for a parenteral nutrition bag is maximum 24 h.
Method of administration
Intravenous use. For central venous infusion only.
During intradialytic parenteral nutrition (IDPN) the bag should be administered through the venous drip chamber of the extracorporeal circulation lines.