Risk of hypotension and/or renal insufficiency
In patients with uncomplicated hypertension, symptomatic hypotension has been observed in rare cases after the first dose or after an increased dose. Marked activation of the renin-angiotensin- aldosterone system occurs under certain conditions, especially in the event of severe fluid and sodium depletion (low salt diet, prolonged diuretic treatment, dialysis, diarrhoea or vomiting), renal artery stenosis, heart failure and cirrhosis of the liver with oedema and/or ascites. The ACE inhibitor's suppression of the renin-angiotensin-aldosterone system may cause severe arterial hypotension and/or functional renal insufficiency, especially at the first dosage, when the dose is increased and during the first two weeks of treatment. Severe hypotension may lead to fainting and/or ischaemic lesions in organs with arterial disorders (e.g. acute myocardial infarction, cerebrovascular infarction).
In such risk patients, including those with angina pectoris, ischaemic heart disease or cerebrovascular disorders, trandolapril treatment should be initiated under close medical supervision in low doses, with careful dose adjustment. In the event of prior diuretic treatment, in some patients particularly if this treatment has been recently instituted, the fall in blood pressure on initiation of treatment with trandolapril may be excessive. It is recommended to discontinue the diuretic treatment at least 72 hours before the trandolapril treatment is initiated and begin with 0.5 mg daily (see section 4.5).
Fluid and salt depletion should be remedied before initiating trandolapril treatment.
If the patient develops arterial hypotension or renal insufficiency during treatment, dose reduction or suspension of the treatment with trandolapril and/or diuretics may be necessary.
A case of arterial hypotension occurring after the initial dose does not exclude subsequent treatment with trandolapril provided the dose is adjusted carefully.
If symptomatic hypotension occurs, the patient should be placed in a supine position and, if necessary, receive an intravenous infusion of physiological saline. Intravenous atropine may be necessary if there is associated bradycardia.
Patients with renovascular hypertension
Treatment of renovascular hypertension is carried out by revascularisation.
However, ACE inhibitors may be of use until revascularisation can be effected, or if such a procedure is not to be carried out. The risk of severe arterial hypotension and renal insufficiency is increased when patients with prior unilateral or bilateral renal artery stenosis are treated with an ACE inhibitor. Diuretics may further increase the risk. Loss of renal function may occur with only small changes in the serum creatinine, even in patients with unilateral renal artery stenosis. For these patients treatment should be initiated in the hospital under close medical supervision with low doses and careful dose adjustment. Diuretic treatment should be discontinued, and renal function and serum potassium monitored during the early weeks of treatment.
Assessment of renal function
Evaluation of the patient should include assessment of renal function prior to initiation of therapy and during treatment. Proteinuria may occur if renal impairment is present prior to therapy or relatively high doses are used.
Patients with renal insufficiency
In the event of renal insufficiency the dose must be reduced if the creatinine clearance is ≤0.5 ml/s (≤30 ml/min) (see section 4.2). In patients with renal insufficiency it is recommended that renal function and serum potassium be monitored closely during the early weeks of treatment and subsequently as appropriate. Some hypertensive patients without previously diagnosed renal disease may develop increases in serum urea nitrogen and serum creatinine when trandolapril is given concurrently with diuretics. Proteinuria may occur.
In patients with renal insufficiency, congestive heart failure or unilateral or bilateral renal artery stenosis, in the single kidney as well as after renal transplantation, there is a risk of impairment of renal function. If recognised early, such impairment of renal function is reversible upon discontinuation of therapy.
Additionally, in patients with renal insufficiency, the risk of hyperkalaemia should be considered and the patient's electrolyte status checked regularly.
Kidney transplantation
There is no experience regarding the administration of trandolapril in patients with a recent kidney transplantation. Treatment with trandolapril is therefore not recommended.
Patients with impaired liver function
As trandolapril is a prodrug metabolised to its active form in the liver, particular caution and close monitoring should be applied to patients with impaired liver function.
Hepatic failure
Rarely, ACE inhibitors have been associated with a syndrome that starts with cholestatic jaundice or hepatitis and progresses to fulminant hepatic necrosis and (sometimes) death. The mechanism of this syndrome is not understood. Patients receiving ACE inhibitors who develop jaundice or marked elevations of hepatic enzymes should discontinue the ACE inhibitor and receive appropriate medical follow-up.
Hypersensitivity/Angioedema
Cases of oedema in the face, lips, tongue, glottis and/or larynx as well as the extremities have been reported in patients treated with an ACE inhibitor, including trandolapril. Angio oedema may occur particularly during the early weeks of treatment. Seldom does it develop only after prolonged treatment with an ACE inhibitor.
In such cases the trandolapril treatment should be discontinued immediately, and the patient monitored until the oedema disappears. When the oedema is localised to include only the face, it generally disappears without treatment, although antihistamines have been useful in relieving symptoms.
The combination of facial and glottis oedema may be life-threatening. Swelling of the tongue, glottis or larynx may cause respiratory obstruction. Subcutaneous adrenaline 0.1% (0.3-0.5 ml) must be given rapidly and other therapeutic measures taken as appropriate. Caution must be exercised in patients with a history of idiopathic angioedema, and trandolapril is contraindicated if angioedema was an adverse reaction to an ACE inhibitor (see section 4.3).
After such a reaction treatment with an ACE inhibitor must not be resumed. Patients with prior Quincke's oedema not occurring in connection with ACE inhibitor treatment run a greater risk of a new Quincke's oedema if they are treated with an ACE inhibitor (see section 4.3).
It has been shown that ACE inhibitors cause a higher rate of angioedema in black than in non black patients.
Concomitant use of ACE inhibitors with sacubitril/valsartan is contraindicated due to the in-creased risk of angioedema (see section 4.3). Treatment with sacubitril/valsartan must not be initiated earlier than 36 hours after the last dose of trandolapril. Treatment with trandolapril must not be initiated earlier than 36 hours after the last dose of sacubitril/valsartan (see sections 4.3 and 4.5). Concomitant use of other NEP inhibitors (e.g. racecadotril) and ACE inhibitors may also increase the risk of angioedema (see section 4.5). Hence, a careful benefit-risk assessment is needed before initiating treatment with NEP inhibitors (e.g. racecadotril) in patients on trandolapril.
Intestinal angioedema has been reported in patients treated with ACE inhibitors. These patients presented with abdominal pain (with or without nausea or vomiting); in some cases there was no prior facial angioedema and C-1 esterase levels were normal. The angioedema was diagnosed by procedures including abdominal CT scan, or ultrasound or at surgery and symptoms resolved after stopping the ACE inhibitor. Intestinal angioedema should be included in the differential diagnosis of patients on ACE inhibitors presenting with abdominal pain (see section 4.8).
Concomitant use of ACE inhibitors with racecadotril, mTOR inhibitors (e.g. sirolimus, everolimus, temsirolimus) and vildagliptin may lead to an increased risk of angioedema (e.g. swelling of the airways or tongue, with or without respiratory impairment) (see section 4.5). Caution should be used when starting racecadotril, mTOR inhibitors (e.g. sirolimus, everolimus, temsirolimus) and vildagliptin in a patient already taking an ACE inhibitor.
Ethnic differences
As is the case with other ACE inhibitors, trandolapril may be less effective lowering blood pressure in black than in non black patients. This may possibly be due to a higher incidence of low renin conditions in hypertensive black patients.
Cough
During treatment with an ACE inhibitor, a dry and non-productive cough may occur which disappears after discontinuation. If treatment with an ACE inhibitor is considered essential, a resumption of treatment may be considered.
ACE inhibitor-induced cough should be considered as part of the differential diagnosis of cough.
Serum potassium
ACE inhibitors can cause hyperkalemia because they inhibit the release of aldosterone. The effect is usually not significant in patients with normal renal function. However, in patients with impaired renal function and/or in patients taking potassium supplements (including salt substitutes), potassium-sparing diuretics, trimethoprim or co-trimoxazole also known as trimethoprim/sulfamethoxazole and especially aldosterone antagonists or angiotensin-receptor blockers, hyperkalemia can occur. Potassium-sparing diuretics and angiotensin-receptor blockers should be used with caution in patients receiving ACE inhibitors, and serum potassium and renal function should be monitored (see section 4.5).
Risk factors for the development of hyperkalemia include renal insufficiency, worsening of the renal condition, age (> 70 years), diabetes mellitus, intercurrent events, in particular dehydration, left ventricular dysfunction after myocardial infarction, metabolic acidosis, and concomitant use of potassium-sparing diuretics (e.g., spironolactone, eplerenone, triamterene, or amiloride), potassium supplements or potassium- containing salt substitutes; or those patients taking other drugs associated with increases in serum potassium (e.g., heparin, co-trimoxazole also known as trimethoprim/sulfamethoxazole). Hyperkalaemia can cause serious, sometimes fatal arrhythmias.
Surgery/anaesthesia
In patients undergoing major surgery or during anaesthesia with potentially hypotensive agents, ACE inhibitors including trandolapril may block angiotensin II formation secondary to compensatory renin release which may induce a possibly severe arterial hypotension, which can be corrected with plasma expanders. If it is not possible to discontinue treatment with the ACE inhibitor, volume therapy should be given with care.
Aortic stenosis/hypertrophic cardiomyopathy
ACE inhibitors should not be used in patients with aortic stenosis or obstructed outflow from the left ventricle.
Neutropenia/ agranulocytosis and bone marrow depression
In patients on ACE inhibitors, neutropenia /agranulocytosis and bone marrow depression have been seen. These reactions are more frequent in patients with patients with renal impairment, especially those with a collagen vascular disease (e.g. lupus erythematosus disseminatus and scleroderma), as well as immunosuppressive therapy with agents having a potential risk of leucopenia. Neutropenia is reversible after discontinuation of the ACE inhibitor. The best prevention is to keep carefully to the recommended dose. If treatment with an ACE inhibitor is deemed necessary in such risk patients, the risk/benefit ratio must be considered carefully. Regular monitoring of the white blood cell counts and protein in the urine must be considered in patients with collagen vascular diseases (e.g. lupus erythematosus and scleroderma), especially associated with impaired renal function and concomitant therapy, particularly with corticosteroids and antimetabolites, or treatment with allopurinol or procainamide.
Proteinuria
Proteinuria may occur particularly in patients with existing renal function impairment or relatively high doses of ACE inhibitors. Trandolapril should only be administered after critical evaluation of the risk/benefit of treatment of patients with clinically relevant proteinuria (more than 1 g/day).
Anaphylactoid reactions during animal desensitisation
Rarely, patients receiving ACE inhibitors during desensitisation with animal venom have experienced life-threatening anaphylactoid reactions. These reactions were avoided by temporarily withholding ACE inhibitor therapy prior to each desensitisation.
Anaphylactoid reactions during LDL apheresis
Rarely, patients receiving ACE inhibitors during low density lipoprotein (LDL)-apheresis with dextran sulphate have experienced life-threatening anaphylactoid reactions. These reactions were avoided by temporarily withholding ACE-inhibitor therapy prior to each apheresis.
Anaphylactoid reactions during haemodialysis
Anaphylactoid reactions such as facial flushing, hypotension and dyspnoea have been reported in patients dialysed with high-flux membranes (e.g., AN 69®) and treated concomitantly with an ACE inhibitor. In these patients consideration should be given to using a different type of dialysis membrane or a different class of antihypertensive agent.
Diabetic patients
In diabetic patients treated with oral antidiabetic agents or insulin, glycaemic control should be closely monitored during the first month of treatment with an ACE inhibitor (see section 4.5).
Pregnancy
ACE inhibitors should not be initiated during pregnancy. Unless continued ACE inhibitor therapy is considered essential, patients planning pregnancy should be changed to alternative anti-hypertensive treatments which have an established safety profile for use in pregnancy. When pregnancy is diagnosed, treatment with ACE inhibitors should be stopped immediately, and, if appropriate, alternative therapy should be started (see sections 4.3 and 4.6).
Paediatric population
The safety and efficacy of trandolapril in children have not been studied.
Interactions
This medicinal product IS GENERALLY NOT RECOMMENDED in combination with potassium- sparing diuretics, potassium salts and lithium (see section 4.5).
Dual blockade of the renin-angiotensin-aldosterone system (RAAS)
There is evidence that the concomitant use of ACE-inhibitors, angiotensin II receptor blockers or aliskiren increases the risk of hypotension, hyperkalaemia and decreased renal function (including acute renal failure). Dual blockade of RAAS through the combined use of ACE-inhibitors, angiotensin II receptor blockers or aliskiren is therefore not recommended (see sections 4.5 and 5.1).
If dual blockade therapy is considered absolutely necessary, this should only occur under specialist supervision and subject to frequent close monitoring of renal function, electrolytes and blood pressure.
ACE-inhibitors and angiotensin II receptor blockers should not be used concomitantly in patients with diabetic nephropathy.
Contains lactose
Patients with rare hereditary problems of galactose intolerance, Lapp lactase deficiency, or glucose- galactose malabsorption should not take this medicine.