Trandolapril

INDICATIONS AND USAGE Hypertension Trandolapril tablets USP are indicated for the treatment of hypertension. They may be used alone or in combination with other antihypertensive medication such as hydrochlorothiazide. Heart Failure Post Myocardial Infarction or Left-Ventricular Dysfunction Post Myocardial Infarction Trandolapril tablets USP are indicated in stable patients who have evidence of left-ventricular systolic dysfunction (identified by wall motion abnormalities) or who are symptomatic from congestive heart failure within the first few days after sustaining acute myocardial infarction. Administration of trandolapril to Caucasian patients has been shown to decrease the risk of death (principally cardiovascular death) and to decrease the risk of heart failure-related hospitalization (see CLINICAL PHARMACOLOGY - Heart Failure or Left-Ventricular Dysfunction Post Myocardial Infarction for details of the survival trial).

DOSAGE AND ADMINISTRATION Hypertension The recommended initial dosage of trandolapril tablets for patients not receiving a diuretic is 1 mg once daily in non-black patients and 2 mg in black patients. Dosage should be adjusted according to the blood pressure response. Generally, dosage adjustments should be made at intervals of at least 1 week. Most patients have required dosages of 2 to 4 mg once daily. There is little clinical experience with doses above 8 mg. Patients inadequately treated with once-daily dosing at 4 mg may be treated with twice-daily dosing. If blood pressure is not adequately controlled with trandolapril tablets monotherapy, a diuretic may be added. In patients who are currently being treated with a diuretic, symptomatic hypotension occasionally can occur following the initial dose of trandolapril tablets. To reduce the likelihood of hypotension, the diuretic should, if possible, be discontinued two to three days prior to beginning therapy with trandolapril tablets. (See WARNINGS . ) Then, if blood pressure is not controlled with trandolapril tablets alone, diuretic therapy should be resumed. If the diuretic cannot be discontinued, an initial dose of 0.5 mg trandolapril tablets should be used with careful medical supervision for several hours until blood pressure has stabilized. The dosage should subsequently be titrated (as described above) to the optimal response. (See WARNINGS , PRECAUTIONS and Drug Interactions . ) Concomitant administration of trandolapril tablets with potassium supplements, potassium salt substitutes, or potassium sparing diuretics can lead to increases of serum potassium. (See PRECAUTIONS . ) Heart Failure Post Myocardial Infarction or Left-Ventricular Dysfunction Post Myocardial Infarction The recommended starting dose is 1 mg, once daily. Following the initial dose, all patients should be titrated (as tolerated) toward a target dose of 4 mg, once daily. If a 4 mg dose is not tolerated, patients can continue therapy with the greatest tolerated dose. Dosage Adjustment in Renal Impairment or Hepatic Cirrhosis For patients with a creatinine clearance <30 mL/min. or with hepatic cirrhosis, the recommended starting dose, based on clinical and pharmacokinetic data, is 0.5 mg daily. Patients should subsequently have their dosage titrated (as described above) to the optimal response.

CONTRAINDICATIONS Trandolapril tablets are contraindicated in patients who are hypersensitive to this product, in patients with hereditary/idiopathic angioedema and in patients with a history of angioedema related to previous treatment with an ACE inhibitor. Do not co-administer aliskiren with trandolapril tablets in patients with diabetes (see PRECAUTIONS , Drug Interactions). Trandolapril tablets are contraindicated in combination with a neprilysin inhibitor (e.g., sacubitril). Do not administer trandolapril tablets within 36 hours of switching to or from sacubitril/valsartan, a neprilysin inhibitor (see WARNINGS ).

ADVERSE REACTIONS The safety experience in U.S. placebo-controlled trials included 1069 hypertensive patients, of whom 832 received trandolapril tablets. Nearly 200 hypertensive patients received trandolapril tablets for over one year in open-label trials. In controlled trials, withdrawals for adverse events were 2.1% on placebo and 1.4% on trandolapril tablets. Adverse events considered at least possibly related to treatment occurring in 1% of trandolapril tablets-treated patients and more common on trandolapril tablets than placebo, pooled for all doses, are shown below, together with the frequency of discontinuation of treatment because of these events. ADVERSE EVENTS IN PLACEBO-CONTROLLED HYPERTENSION TRIALS Occurring at 1 % or greater TRANDOLAPRIL TABLETS ( N = 832 ) % Incidence (% Discontinuance ) PLACEBO ( N = 237 ) % Incidence (% Discontinuance ) Cough 1.9 (0.1) 0.4 (0.4) Dizziness 1.3 (0.2) 0.4 (0.4) Diarrhea 1.0 (0.0) 0.4 (0.0) Headache and fatigue were all seen in more than 1% of trandolapril tablets-treated patients but were more frequently seen on placebo. Adverse events were not usually persistent or difficult to manage. Left Ventricular Dysfunction Post Myocardial Infarction Adverse reactions related to trandolapril tablets occurring at a rate greater than that observed in placebo-treated patients with left ventricular dysfunction, are shown below. The incidences represent the experiences from the TRACE study. The follow-up time was between 24 and 50 months for this study. Percentage of Patients with Adverse Events Greater Than Placebo Placebo - Controlled ( TRACE ) Mortality Study Adverse Event Trandolapril N = 876 Placebo N = 873 Cough 35 22 Dizziness 23 17 Hypotension 11 6.8 Elevated serum uric acid 15 13 Elevated BUN 9.0 7.6 PICA or CABG 7.3 6.1 Dyspepsia 6.4 6.0 Syncope 5.9 3.3 Hyperkalemia 5.3 2.8 Bradycardia 4.7 4.4 Hypocalcemia 4.7 3.9 Myalgia 4.7 3.1 Elevated creatinine 4.7 2.4 Gastritis 4.2 3.6 Cardiogenic shock 3.8 < 2 Intermittent claudication 3.8 < 2 Stroke 3.3 3.2 Asthenia 3.3 2.6 Clinical adverse experiences possibly or probably related or of uncertain relationship to therapy occurring in 0.3% to 1.0% (except as noted) of the patients treated with trandolapril tablets (with or without concomitant calcium ion antagonist or diuretic) in controlled or uncontrolled trials (N=1134) and less frequent, clinically significant events seen in clinical trials or post-marketing experience include (listed by body system): General Body Function Chest pain. Cardiovascular AV first degree block, bradycardia, edema, flushing, and palpitations. Central Nervous System Drowsiness, insomnia, paresthesia, vertigo. Dermatologic Pruritus, rash, pemphigus. Eye, Ear, Nose, Throat Epistaxis, throat inflammation, upper respiratory tract infection. Emotional, Mental, Sexual States Anxiety, impotence, decreased libido. Gastrointestinal Abdominal distention, abdominal pain/cramps, constipation, dyspepsia, diarrhea, vomiting, nausea. Hemopoietic Decreased leukocytes, decreased neutrophils. Metabolism and Endocrine Increased liver enzymes including SGPT (ALT). Musculoskeletal System Extremity pain, muscle cramps, gout. Pulmonary Dyspnea. Postmarketing The following adverse reactions were identified during post approval use of trandolapril tablets. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. General Body Function Malaise, fever. Cardiovascular Myocardial infarction, myocardial ischemia, angina pectoris, cardiac failure, ventricular tachycardia, tachycardia, transient ischemic attack, arrhythmia. Central Nervous System Cerebral hemorrhage. Dermatologic Alopecia, sweating, Stevens-Johnson syndrome and toxic epidermal necrolysis. Emotional, Mental, Sexual States Hallucination, depression. Gastrointestinal Dry mouth, pancreatitis, jaundice and hepatitis. Hemopoietic Agranulocytos …

Drug Interactions Trandolapril did not affect the plasma concentration (pre-dose and 2 hours post-dose) of oral digoxin (0.25 mg). Coadministration of trandolapril and cimetidine led to an increase of about 44% in C max for trandolapril, but no difference in the pharmacokinetics of trandolaprilat or in ACE inhibition. Coadministration of trandolapril and furosemide led to an increase of about 25% in the renal clearance of trandolaprilat, but no effect was seen on the pharmacokinetics of furosemide or trandolaprilat or on ACE inhibition.

Drug Interactions Dual Blockade of the Renin-Angiotensin System (RAS) Dual blockade of the RAS with angiotensin receptor blockers, ACE inhibitors, or aliskiren is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy. Most patients receiving the combination of two RAS inhibitors do not obtain any additional benefit compared to monotherapy. In general, avoid combined use of RAS inhibitors. Closely monitor blood pressure, renal function and electrolytes in patients on trandolapril tablets and other agents that affect the RAS. Do not co-administer aliskiren with trandolapril tablets in patients with diabetes. Avoid use of aliskiren with trandolapril tablets in patients with renal impairment (GFR <60 mL/min). Concomitant Diuretic Therapy As with other ACE inhibitors, patients on diuretics, especially those on recently instituted diuretic therapy, may experience an excessive reduction of blood pressure after initiation of therapy with trandolapril tablets. The possibility of exacerbation of hypotensive effects with trandolapril tablets may be minimized by either discontinuing the diuretic or cautiously increasing salt intake prior to initiation of treatment with trandolapril tablets. If it is not possible to discontinue the diuretic, the starting dose of trandolapril should be reduced. (see DOSAGE AND ADMINISTRATION .) Agents Increasing Serum Potassium Trandolapril can attenuate potassium loss caused by thiazide diuretics and increase serum potassium when used alone. Use of potassium-sparing diuretics (spironolactone, triamterene, or amiloride), potassium supplements, or potassium-containing salt substitutes concomitantly with ACE inhibitors can increase the risk of hyperkalemia. If concomitant use of such agents is indicated, they should be used with caution and with appropriate monitoring of serum potassium. (see PRECAUTIONS .) Antidiabetic Agents Concomitant use of ACE inhibitors and antidiabetic medicines (insulin or oral hypoglycemic agents) may cause an increased blood glucose lowering effect with greater risk of hypoglycemia. Lithium Increased serum lithium levels and symptoms of lithium toxicity have been reported in patients receiving concomitant lithium and ACE inhibitor therapy. These drugs should be coadministered with caution, and frequent monitoring of serum lithium levels is recommended. If a diuretic is also used, the risk of lithium toxicity may be increased. Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including trandolapril, may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Monitor renal function periodically in patients receiving trandolapril and NSAID therapy. The antihypertensive effect of ACE inhibitors, including trandolapril may be attenuated by NSAIDs. Gold Nitritoid reactions (symptoms include facial flushing, nausea, vomiting and hypotension) have been reported rarely in patients on therapy with injectable gold (sodium aurothiomalate) and concomitant ACE inhibitor therapy including trandolapril tablets. Mammalian Target of Rapamycin (mTOR) I …

Mechanism of Action Trandolapril is deesterified to the diacid metabolite, trandolaprilat, which is approximately eight times more active as an inhibitor of ACE activity. ACE is a peptidyl dipeptidase that catalyzes the conversion of angiotensin I to the vasoconstrictor, angiotensin II. Angiotensin II is a potent peripheral vasoconstrictor that also stimulates secretion of aldosterone by the adrenal cortex and provides negative feedback for renin secretion. The effect of trandolapril in hypertension appears to result primarily from the inhibition of circulating and tissue ACE activity thereby reducing angiotensin II formation, decreasing vasoconstriction, decreasing aldosterone secretion, and increasing plasma renin. Decreased aldosterone secretion leads to diuresis, natriuresis, and a small increase of serum potassium. In controlled clinical trials, treatment with trandolapril alone resulted in mean increases in potassium of 0.1 mEq/L. (see PRECAUTIONS .) ACE is identical to kininase II, an enzyme that degrades bradykinin, a potent peptide vasodilator; whether increased levels of bradykinin play a role in the therapeutic effect of trandolapril remains to be elucidated. While the principal mechanism of antihypertensive effect is thought to be through the renin-angiotensin-aldosterone system, trandolapril exerts antihypertensive actions even in patients with low-renin hypertension. Trandolapril was an effective antihypertensive in all races studied. Both black patients (usually a predominantly low-renin group) and non-black patients responded to 2 to 4 mg of trandolapril.

DESCRIPTION Trandolapril is the ethyl ester prodrug of a nonsulfhydryl angiotensin converting enzyme (ACE) inhibitor, trandolaprilat. Trandolapril is chemically described as (2S,3aR,7aS)-1-[(S)-N-[(S)-1-Carboxy-3-phenylpropyl]alanyl] hexahydro-2-indolinecarboxylic acid, 1-ethyl ester. Its molecular formula is C 24 H 34 N 2 O 5 and its structural formula is M.W. = 430.54 Melting Point = 125°C Trandolapril USP is a white or almost white powder that is soluble (>100 mg/mL) in chloroform, dichloromethane, and methanol. Trandolapril tablets USP contain 1 mg, 2 mg, or 4 mg of trandolapril USP for oral administration. Each tablet also contains lactose monohydrate, corn starch, croscarmellose sodium, hypromellose, povidone, and sodium stearyl fumarate. In addition 1 mg and 4 mg tablet also contains ferric oxide red and 2 mg tablet contains ferric oxide yellow. Chemical Structure

OVERDOSAGE No data are available with respect to overdosage in humans. The oral LD 50 of trandolapril in mice was 4875 mg/kg in males and 3990 mg/kg in females. In rats, an oral dose of 5000 mg/kg caused low mortality (1 male out of 5; 0 females). In dogs, an oral dose of 1000 mg/kg did not cause mortality and abnormal clinical signs were not observed. In humans, the most likely clinical manifestation would be symptoms attributable to severe hypotension. Symptoms also expected with ACE inhibitors are hypotension, hyperkalemia, and renal failure. Laboratory determinations of serum levels of trandolapril and its metabolites are not widely available, and such determinations have, in any event, no established role in the management of trandolapril overdose. No data are available to suggest that physiological maneuvers (e.g., maneuvers to change the pH of the urine) might accelerate elimination of trandolapril and its metabolites. Trandolaprilat is removed by hemodialysis. Angiotensin II could presumably serve as a specific antagonist antidote in the setting of trandolapril overdose, but angiotensin II is essentially unavailable outside of scattered research facilities. Because the hypotensive effect of trandolapril is achieved through vasodilation and effective hypovolemia, it is reasonable to treat trandolapril overdose by infusion of normal saline solution.

HOW SUPPLIED Trandolapril tablets USP are supplied as follows: Trandolapril Tablets USP 1 mg are salmon colored, round, biconvex, uncoated tablets debossed with ‘E’ on upper side of the bisector line on one side and ‘35’ on the other side. Bottles of 100 NDC 65862-164-01 Bottles of 1,000 NDC 65862-164-99 Trandolapril Tablets USP 2 mg are yellow colored, round, biconvex, uncoated tablets debossed with ‘E’ on one side and ‘36’ on the other side. Bottles of 100 NDC 65862-165-01 Bottles of 1,000 NDC 65862-165-99 Trandolapril Tablets USP 4 mg are rose colored, round, biconvex, uncoated tablets debossed with ‘E’ on one side and ‘37’ on the other side. Bottles of 100 NDC 65862-166-01 Bottles of 1,000 NDC 65862-166-99 Dispense in well-closed container with safety closure. 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]. Distributed by: Aurobindo Pharma USA, Inc. 279 Princeton-Hightstown Road East Windsor, NJ 08520 Manufactured by: Aurobindo Pharma Limited Hyderabad–500 032, India Revised: 02/2022