1 Name of Medicine
Glucose, calcium chloride dihydrate, magnesium chloride hexahydrate, sodium chloride, sodium lactate and sodium bicarbonate.
2 Qualitative and Quantitative Composition
Composition.
See Tables 1 and 2.
1000 mL of final solution after mixing corresponds to:
Viaflex bag: 362.5 mL of solution A (glucose) and 637.5 mL of solution B (buffer).
Clear Flex bag: 750 mL of solution A (glucose) and 250 mL of solution B (buffer).
The pH of the final solution is 7.4.
Hydrochloric acid (solution A) and sodium hydroxide (solution B) are used for pH adjustment in the Clear Flex presentation.
List of excipients.
Water for injections, hydrochloride acid and sodium hydroxide.3 Pharmaceutical Form
Physioneal 40 is a sterile, clear, colourless solution.
4.1 Therapeutic Indications
Physioneal 40 is indicated for use in peritoneal dialysis in patients with acute or chronic renal failure.
4.2 Dose and Method of Administration
Adult.
The mode of therapy, frequency of treatment, exchange volume, duration of dwell and length of dialysis should be selected by the physician.
To avoid the risk of severe dehydration, hypovolemia and to minimise the loss of proteins, it is advisable to select the peritoneal dialysis solution with the lowest level of osmolarity consistent with fluid removal requirements for each exchange.
Patients on continuous ambulatory peritoneal dialysis (CAPD) typically perform 4 cycles per day (24 hours). Patients on automated peritoneal dialysis (APD) typically perform 4-5 cycles at night and up to 2 cycles during the day. The fill volume depends on body size, usually from 2.0 to 2.5 litres.
Instructions for use and handling - general.
Preparation for administration.
Prior to exchange, assemble supplies on exchange area, wash hands and wipe surface. Prior to opening overpouch, check for the correct solution type, expiration date, and amount (volume).
The solution should be warmed to 37°C in the overpouch to enhance patient comfort. However, only dry heat (e.g. heating pad, warming plate) should be used. Solutions should not be heated in water or in a microwave oven.
Aseptic technique should be employed throughout the peritoneal dialysis procedure. Lift the dialysate bag to check for any leaks are contained within the overpouch. If leaks are discovered do not use as sterility may be impaired. In case of damage the container should be discarded.
Open overpouch and remove contents. Ensure the pull ring is attached to the solution administration port. Do not use if pull ring is not attached as sterility may be impaired.
Do not administer if the solution is discoloured, cloudy, contains particulate matter or shows evidence of leakage or if seals are not intact.
The drained fluid should be inspected for the presence of fibrin or cloudiness, which may indicate the presence of peritonitis.
Discard any unused remaining solution.
The pH and salts of the solution must be taken into account for compatibility before adding to the solution.
Contains no antimicrobial preservative.
The mode of therapy, frequency of treatment, exchange volume, duration of dwell and length of dialysis should be selected by a physician.
Viaflex bag - instruction for use and handling.
Detailed instruction on the PD exchange procedure is given to patients by means of training in a specialised training centre, prior to home use.
After the removal of the overpouch, inspect the container for signs of leakage. Leaks may occur between the chambers or to the exterior. Check that the interchamber frangible pin is not broken by pressing firmly on the large and small chambers. If the frangible pin is already broken, or if any leak is detected, do not use bag.
After removal of the overpouch, immediately break the interchamber frangible pin to mix the two solutions. Wait until the upper chamber has completely drained into the lower chamber. Mix gently by pushing with both hands on the lower chamber walls. The intraperitoneal solution must be infused within 24 hours of mixing.
After frangible pin has been broken, check the integrity of the bag for any signs of leakage. If leaks are detected, do not use bag.
Drugs should be added through the medication port in the glucose chamber before breaking the interchamber frangible pin. The product should be used immediately after any drug addition. Do not store.
Clear Flex bag - instruction for use and handling.
Detailed instructions on the peritoneal dialysis exchange procedure is given to patients by means of training in a specialised training centre, prior to home use.
After the removal of the overpouch, inspect the container for signs of leakage. Leaks may occur between the chambers or to the external environment. Check that the long and short seals are not opened at any point by pressing firmly on the large and small chambers. If one of the seals is opened, even partially, or if any leak is detected, do not use bag.
After removal of the overpouch, immediately open the long-seal (interchamber seal) to mix the two solutions and then open the short Safety Moon seal (access seal) to allow administration of the mixed solution. The intraperitoneal solution must be infused within 24 hours of mixing.
Patients must be instructed to open both the long and the short seals prior to infusion. If only the short-seal opens, infusion of the unmixed solution can cause abdominal pain, hypernatremia and severe metabolic alkalosis. In case of infusion of unmixed solution, the patient should immediately drain the solution and use a newly mixed bag.
After short and long seals have been opened, check the integrity of the bag for any signs of leakage. If leaks are detected, do not use bag. Report and return faulty bags.
Drugs should be added through the medication site in the larger 'glucose' chamber before opening the interchamber peel seal. Disinfect the medication site immediately before injection. The product should be used immediately after any drug addition. Do not store.4.3 Contraindications
Physioneal is contraindicated for use in patients with:
Uncorrectable mechanical defects that prevent effective peritoneal dialysis or increase the risk of infection.
Documented loss of peritoneal function or extensive adhesions that compromise peritoneal function.
4.4 Special Warnings and Precautions for Use
Product is for single use in one patient only.
Intraperitoneal administration only.
Not for intravenous administration.
Encapsulating peritoneal sclerosis (EPS) is considered to be known, rare complication of peritoneal dialysis therapy. EPS has been reported in patients using peritoneal dialysis solutions including Physioneal.
If peritonitis occurs, the choice and dosage of antibiotics should be based upon the results of identification and sensitivity studies of the isolated organism(s) where possible. Prior to identification of the involved organism(s), broad-spectrum antibiotics may be indicated.
Solutions containing glucose should be used with caution in patients with a known allergy to corn or corn products. Hypersensitivity reactions such as those due to a corn starch allergy, including anaphylactic/ anaphylactoid reactions, may occur. Stop the infusion immediately and drain the solution from the peritoneal cavity if any signs or symptoms of a suspected hypersensitivity reaction develop. Appropriate therapeutic countermeasures must be instituted as clinically indicated.
Patients with elevated lactate levels should use lactate-containing peritoneal dialysis solutions with caution. It is recommended that patients with conditions known to increase the risk of lactic acidosis [e.g. severe hypotension or sepsis that can be associated with acute renal failure, inborn errors of metabolism, treatment with drugs such as metformin and nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs)] must be monitored for occurrence of lactic acidosis before the start of treatment and during treatment with lactate-based peritoneal dialysis solutions.
When prescribing the solution to be used for an individual patient, consideration should be given to the potential interaction between the dialysis treatment and therapy directed at other existing illnesses. Serum potassium levels should be monitored carefully in patients with cardiac glycosides.
Diabetics require careful monitoring of blood glucose levels during and following dialysis with glucose-containing solutions. Dosage of insulin or other treatments for hyperglycaemia should be adjusted.
The use of Physioneal in Clear Flex container is not recommended in patients requiring a fill volume < 1600 mL due to the risk of undetected mis-infusion (administration of the buffer chamber only).
Patients must be instructed to open both the long and the short seals prior to infusion. If only the short-seal opens, infusion of the unmixed solutions can cause abdominal pain, hypernatremia and severe metabolic alkalosis. In case of infusion of unmixed solution, the patient should immediately drain the solution and use a newly mixed bag.
Peritoneal dialysis should be done with caution in patients with: 1) abdominal conditions, including disruption of the peritoneal membrane and diaphragm by surgery, from congenital anomalies or trauma until healing is complete, abdominal tumors, abdominal wall infection, hernias, faecal fistula or colostomy, or ileostomy, frequent episodes of diverticulitis, inflammatory or ischemic bowel disease, large polycystic kidneys, or other conditions that compromise the integrity of the abdominal wall, abdominal surface, or intra-abdominal cavity and advanced pregnancy; and 2) other conditions including aortic graft placement and severe pulmonary disease, malnutrition or severe disorders of lipid metabolism. In the individual case, the benefits for the patient must be weighed against the possible complications.
Physioneal is intended for intraperitoneal administration only. Not for intravenous administration.
Do not administer if the solution is discoloured, cloudy, contains particulate matter or shows evidence of leakage between chambers or to the exterior or if seals are not intact.
The drained fluid should be inspected for the presence of fibrin or cloudiness, which may indicate the presence of peritonitis.
Safety and effectiveness in paediatric patients have not been established.
An accurate fluid balance record must be kept and the body weight of the patient should carefully be monitored to avoid over- or under hydration with severe consequences including congestive heart failure, volume depletion and shock.
Protein, amino acids, water-soluble vitamins and other medicines may be lost during peritoneal dialysis and may require replacement.
In renal failure patients, serum electrolyte concentrations (particularly bicarbonate, potassium, magnesium, calcium and phosphate), blood chemistry (including parathyroid hormone) and haematological parameters should be evaluated periodically.
In patients with secondary hyperparathyroidism, the benefits and risks of the use of dialysis solution with low calcium content such as Physioneal 40 should be carefully considered as it might worsen hyperparathyroidism.
In patients with plasma bicarbonate level above 30 mmol/L, the risk of possible metabolic alkalosis should be weighed against the benefits of treatment with this product. Serum bicarbonate levels should be monitored regularly.
Overinfusion of Physioneal solutions into the peritoneal cavity may be characterised by abdominal distension/abdominal pain and/or shortness of breath.
Treatment of Physioneal overinfusion is to drain the solution from the peritoneal cavity.
Excessive use of Physioneal peritoneal dialysis solution with a higher glucose during peritoneal dialysis treatment may result in excessive removal of water from the patient.
Potassium is omitted from Physioneal solutions due to the risk of hyperkalemia.
In situations in which there is normal serum potassium level or hypokalemia, the addition of potassium chloride (up to a concentration of 4 mEq/L) may be indicated to prevent severe hypokalemia and should be made after careful evaluation of serum and total body potassium, only under the direction of a physician.
Use in the elderly.
The evaluation of the results obtained for this group does not show any difference to the rest of the patients.
Paediatric use.
To date, there are no data from clinical studies in paediatric patients. Safety and effectiveness in paediatric patients has not been established.
Effects on laboratory tests.
The effect of this medicine on laboratory tests has not been established.4.5 Interactions with Other Medicines and Other Forms of Interactions
No interaction studies have been conducted with Physioneal.
Blood concentration of dialyzable drugs may be reduced during dialysis. A possible compensation for losses must be taken into consideration.
Plasma levels of potassium in patients using cardiac glycosides must be carefully monitored, as there is a risk of digitalis intoxication. Potassium supplements may be necessary.
See Incompatibilities (see Section 6.2 Incompatibilities).
4.6 Fertility, Pregnancy and Lactation
Effects on fertility.
Potential effects on male and female fertility are unknown.
(Category B2)
The potential effects of Physioneal 40 on reproduction have not been adequately studied in animals. There is insufficient experience with the use of dialysis fluids in pregnant women.
Women of childbearing potential should be treated with Physioneal 40 only when adequate contraceptive precautions have been taken. Physicians should carefully consider the potential risks and benefits for each specific patient before prescribing Physioneal.
There are no available data from animal studies on the effects of Physioneal 40 administered during lactation. Physicians should carefully consider the potential risks and benefits for each specific patient before prescribing Physioneal.4.7 Effects on Ability to Drive and Use Machines
The effects of this medicine on a person's ability to drive and use machines were not assessed as part of its registration.
4.8 Adverse Effects (Undesirable Effects)
The main adverse events reported for pivotal study REP-RENAL-REG-029 were alkalosis, acidosis and peritonitis. These adverse events were reported by 97.2% and 95.7% of subjects in the control and physiological treatment groups respectively. Subjects treated with Physioneal 40 recorded significantly more alkalosis events than those treated with Dianeal. For pivotal study REP-RENAL-REG-30A, the main adverse events reported were pruritus and sweating.
In clinical trials with Physioneal 40 the following adverse reactions have been noted: benign neoplasm of the skin, alkalosis, fluid retention, hypercalcaemia, hypervolaemia, anorexia, dehydration, hyperglycaemia, hyperphosphatemia, lactic acidosis, insomnia, dizziness, hypertonia, arrhythmia, cardiomegaly, hypertension, hypotension, dyspnea, cough, respiratory acidosis, peritoneal membrane failure, dyspepsia, flatulence, nausea, pruritus, oedema, asthenia, chills, facial oedema, malaise, thirst, procedural complication, weight increase, blood lactate dehydrogenase increased, laboratory test abnormal, pCO2 increased, alanine aminotransferase increased, C reactive protein increased, creatinine renal clearance decreased, and gamma glutamyl transferase increased.
Undesirable effects of peritoneal dialysis include procedure and solution related problems.
Those which are related to the procedure, include abdominal pain, bleeding, peritonitis (which is followed by abdominal pain, cloudy effluent and sometimes fever), infection around the catheter (signs of inflammation, redness and secretion), catheter blockage, ileus, shoulder pain, and hernia of the abdominal cavity. Those which are generally related to peritoneal dialysis solutions, are seen less frequently than those related to the procedure and include weakness, fainting, tiredness, muscle cramping, headache, respiratory symptoms associated with pulmonary oedema and electrolyte disturbances (e.g. hypokalemia, hypocalcaemia).
Post-marketing experience from August 1998 until September 2001 indicate that, with the exception of data from 1999, adjusted peritonitis incidence rates submitted to the European Dialysis Solutions Registry were similar for both Physioneal 40 and Dianeal solutions.
In addition to the adverse reactions noted in clinical trials, the following adverse reactions have been reported in the post-marketing experience. These reactions are listed by MedDRA system organ class (SOC), then by preferred term in order of severity.
Infections and infestations.
Peritonitis bacterial, catheter site infection.
Blood and lymphatic system disorder.
Eosinophilia.
Gastrointestinal disorders.
Sclerosing encapsulating peritonitis, peritoneal cloudy effluent, abdominal discomfort.
Skin and subcutaneous tissue disorder.
Angioedema, rash.
Musculoskeletal and connective tissue disorders.
Musculoskeletal pain.
General disorders and administration site conditions.
Catheter-related complications, pyrexia.
Reporting suspected adverse effects.
Reporting suspected adverse reactions after registration of the medicinal product is important. It allows continued monitoring of the benefit-risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions at www.tga.gov.au/reporting-problems.4.9 Overdose
Possible consequences of overdose include hypervolemia, hypovolemia, electrolyte disturbances or (in diabetic patients) hyperglycaemia. Excessive use of Physioneal peritoneal dialysis solution with 3.86% glucose during a peritoneal dialysis treatment can result in significant removal of water from the patient. For information on the management of overdose, contact the Poisons Information Centre on 13 11 26 (Australia).
5 Pharmacological Properties
5.1 Pharmacodynamic Properties
Mechanism of action.
For use in patients with renal failure to aid the regulation of fluid and electrolytes as well as acid base balances.
This procedure is accomplished by administering peritoneal dialysis fluid through a catheter into the peritoneal cavity. Transfer of substances between the patient's peritoneal capillaries and the dialysis fluid is made across the peritoneal membrane according to the principles of osmosis and diffusion. After dwell time, the solution is saturated with metabolic substances and must be changed. With the exception of lactate, present as a bicarbonate precursor, electrolyte concentrations in the fluid have been formulated in an attempt to normalise plasma electrolyte concentrations. Nitrogenous waste products, present in high concentration in the blood, cross the peritoneal membrane into the dialysis fluid. Glucose produces a solution hyperosmolar to the plasma, creating an osmotic gradient which facilitates fluid removal from the plasma to the solution.
Clinical trials.
To date a total of 226 patients have been exposed to Physioneal 40 in a total of 6 controlled clinical trials. The exposure time ranged from single dwells (18 patients) to up to one year's exposure (70 patients in 6-month study, 43 continued for full year). No pregnant or lactating women or children were studied and there is no long-term survival data.
Most of the trials were designed to demonstrate equivalence with the control product. In all studies there were no significant changes in the residual renal function (RRF), weekly Kt/V and normalised creatinine clearances when patients switched from Dianeal PD4 to Physioneal 40, and no statistically significant differences between the control (Dianeal PD4) arms of these studies and the Physioneal 40 arms. Ultrafiltration is maintained when the buffer is changed from pure lactate to a bicarbonate/lactate combination. There was no difference between Physioneal 40 and Dianeal PD4 with regard to maintenance of calcium and magnesium homeostasis. Acid-base homeostasis was assessed from measurement of the plasma bicarbonate. In all studies the change from baseline (or between group differences) was always within the pre-defined equivalence targets. Physioneal thus corrects acidosis as well as Dianeal.
There did not seem to be any obvious trends across the various Physioneal 40 trials regarding deaths or withdrawals due to adverse events.
Pivotal studies.
REP-RENAL-REG-029. Study design.
Randomised, open-label, comparative study to assess the bioequivalence of a bicarbonate based peritoneal dialysis [bicarb/lactate 25/15 mmol/L] solution compared to lactate (40 mmol/L) buffer solution.
Primary variable.
Plasma bicarbonate levels.
The two preparations were considered equivalent if the 90% confidence intervals for the treatment difference fell entirely within ± 3.0 mmol/L.
Results.
Base line demographics and plasma bicarbonate levels for subjects in study REP-RENAL-REG-029. See Table 3.
After three to six months there were small statistically significant treatment differences in plasma bicarbonate levels. 90% of confidence intervals for the treatment differences were within ± 3 mmol/L of bicarbonate and the treatments are considered to be equivalent. There were no statistically significant correlations between bicarbonate levels and age or normalised Residual Renal Function at 6 months for either treatment, but there was a significant negative correlation between calcium carbonate dose and bicarbonate levels in the Physioneal group.
Subjects treated with Physioneal recorded significantly more alkalosis events than those treated with the lactate (40 mmol/L) buffer solution.
REP-RENAL-REG-030-A. Study design.
Study designed to subjectively evaluate inflow pain during CAPD with a 28 mM bicarbonate solution, Physioneal and Dianeal in 18 subjects who had previously experienced pain during dialysis treatment. This was a single-blind, randomised crossover study where pain was assessed during two single infusions of each solution over a one to three week period, with each participant receiving six single infusions in random order. Test solutions were: bicarbonate 38 mM (pH 7.0-7.4); Bicarbonate lactate 25/15 mM (pH 7.0 - 7.4) and Dianeal PD4 (40 mM lactate) (pH 5.0 - 5.2). All three solutions contained 3.86% glucose in a two-litre bag.
Primary variable.
The primary endpoint variable was pain during the infusion and subjects were evaluated over a three hour period that included the dwell and drain times of the solution. Pain severity was measured on a five-point visual analogue scale (none, mild, moderate, severe and very severe). The McGill Pain Questionnaire (MPQ) was used to assess the pain severity/ intensity and provide verbal descriptors of pain.
Results.
Baseline demographics and subjective pain scores (range 0 - 5) for subjects in study REP-RENAL-REG-030A. See Table 4.
There was a statistically significant treatment difference in peak pain scores during the infusions (P=0.0001). Physioneal solution produced lower pain scores than Dianeal. However, this difference has not been confirmed from larger studies. Numerous variables could affect pain related to the dialysis procedure (including ones related to the dialysis solution, such as catheter placement, that can affect the validity of clinical trials).
5.2 Pharmacokinetic Properties
Intraperitoneally administered glucose, buffer, electrolytes and water are absorbed into the blood and metabolised by the usual pathways. Glucose is metabolised (1 g of glucose = 4 kilocalories or 17 kilojoules) into CO2 and H2O.
5.3 Preclinical Safety Data
Genotoxicity.
Physioneal 40 was not mutagenic in bacterial gene mutation assays.
Carcinogenicity.
Long-term carcinogenicity studies of Physioneal 40 have not been done.6 Pharmaceutical Particulars
6.1 List of Excipients
See Section 2 Qualitative and Quantitative Composition.
6.2 Incompatibilities
There is no incompatibility with insulin in Physioneal in the Viaflex container.
There is no incompatibility with cefazolin, heparin, low molecular weight heparin, insulin, vancomycin, and Physioneal in the Clear Flex container. Gentamicin and tobramycin can be added only if the solution is used immediately after drug addition.
Consult with pharmacist familiar with peritoneal dialysis, if available. If, in the informed judgment of the physician, it is deemed advisable to introduce additives, use aseptic technique.
6.3 Shelf Life
In Australia, information on the shelf life can be found on the public summary of the Australian Register of Therapeutic Goods (ARTG). The expiry date can be found on the packaging.
Shelf life.
The shelf life of the product in the overpouch is 2 years.
Shelf life after reconstitution.
The product, once removed from its overpouch and mixed, should be used within 24 hours.
6.4 Special Precautions for Storage
Clear Flex bags.
Store below 25°C. Do not freeze.
ViaFlex bags.
Store below 30°C. Do not freeze.
6.5 Nature and Contents of Container
Viaflex container.
The Physioneal 40 solution is hermetically sealed inside a two-chamber bag manufactured from medical grade plasticised PVC. The upper chamber is fitted with an injection port for drug admixture to the glucose with electrolytes solution. The lower chamber is fitted with a port for connection to a suitable administration set allowing dialysis operations. The bag is sealed inside a transparent overpouch obtained by thermic fusion and made of multilayer copolymers.
Container volumes after reconstitution: 1500 mL (544 mL of solution A and 956 mL of solution B), 2000 mL (725 mL of solution A and 1275 mL of solution B) and 2500 mL (906 mL of solution A and 1594 mL of solution B).
Pack sizes: 1.5 L, 2 L and 2.5 L.
Clear Flex container.
The Physioneal solution is stored inside a two-chamber bag made of a coextruded film (Clear Flex film) of polypropylene, polyamide and a blend of polypropylene, styrene-ethylene/butylene-styrene and polyethylene. The bag is sealed inside a transparent over pouch made of multilayer copolymers.
On the glucose chamber an injection site is welded for drug admixture to the glucose with electrolytes solution. On the buffer chamber a valve system is welded for connection to a suitable administration set allowing dialysis operations. The bag is wrapped inside a transparent overpouch made of multilayer copolymers.
Container volume after reconstitution is 5000 mL (3750 mL of solution A and 1250 mL of solution B). The pH of chamber A is approximately 2.1. The pH of chamber B is approximately 9.0.
Pack sizes: 5 L.
6.6 Special Precautions for Disposal
Any unused product or waste material should be disposed of in accordance with local requirements.
6.7 Physicochemical Properties
Active ingredients.
Sodium chloride. Molecular formula: NaCl.
Molecular weight: 58.44.
CAS number.
7647-14-5.
Appearance: colourless or white crystal.
Solubility: freely soluble in water.
Magnesium chloride hexahydrate. Molecular formula: MgCl2.6H2O.
Molecular weight: 203.3 g/mol.
CAS number.
7791-18-6.
Appearance: colourless crystals.
Solubility: very soluble in water, and freely soluble in ethanol (96%).
Glucose monohydrate. Molecular formula: C6H12O6.H2O.
Molecular weight: 198.2.
CAS number.
14431-43-7.
Appearance: a white or almost white, crystalline powder.
Solubility: freely soluble in water, sparingly soluble in ethanol.
Calcium chloride dihydrate. Molecular formula: CaCl2 2H2O.
Molecular weight: 147.0 g/mol.
CAS number.
10035-04-8.
Appearance: a white or almost white crystalline powder.
Solubility: freely soluble in water, and soluble in ethanol (96%).
Sodium bicarbonate. Molecular formula: NaHCO3.
Molecular weight: 84.0 g/mol.
CAS number.
144-55-8.
Appearance: a white or almost white, crystalline powder.
Solubility: soluble in water, and practically insoluble in ethanol (96%).
Sodium lactate. Molecular formula: C3H5O3Na.
Molecular weight: 112.06.
CAS number.
72-17-3.
Appearance: clear, colourless, slightly syrupy liquid.
Solubility: miscible with water.7 Medicine Schedule (Poisons Standard)
Unscheduled.
Summary Table of Changes
