Drug information of Nesiritide

Nesiritide

Drug group: vasodilators

Mechanism of effect

Binds to guanylate cyclase receptor on vascular smooth muscle and endothelial cells, increasing intracellular cyclic GMP, resulting in smooth muscle cell relaxation. Has been shown to produce dose-dependent reductions in pulmonary capillary wedge pressure (PCWP) and systemic arterial pressure.

Pharmacodynamic

Natriuretic Peptide, B-Type, Human

Pharmacokinetics

Distribution
Vss: 0.19 L/kg
 
Metabolism
Proteolytic cleavage by vascular endopeptidases and proteolysis following binding to the membrane bound natriuretic peptide (NPR-C) and cellular internalization
 
Excretion
Primarily eliminated by metabolism; also excreted in the urine
 
Onset of Action
PCWP reduction: 15 minutes (60% of 3-hour effect achieved within this time period); Peak effect: Within 1 hour
 
Duration of Action
>60 minutes (up to several hours) for systolic blood pressure; hemodynamic effects persist longer than serum half-life would predict
 
Half-Life Elimination
Initial (distribution) ~2 minutes; Terminal: ~18 minutes

Drug indications

Acutely decompensated heart failure (HF): Treatment of acutely decompensated heart failure (HF) with dyspnea at rest or with minimal activity

Dosage

Dosing: Adult
Acute decompensated heart failure: IV: Initial: 2 mcg/kg (bolus optional); followed by continuous infusion at 0.01 mcg/kg/minute. Note: Should not be initiated at a dosage higher than initial recommended dose. There is limited experience with increasing the dose >0.01 mcg/kg/minute; in one trial, a limited number of patients received higher doses that were increased no faster than every 3 hours by 0.005 mcg/kg/minute (preceded by a bolus of 1 mcg/kg), up to a maximum of 0.03 mcg/kg/minute. Increases beyond the initial infusion rate should be limited to selected patients and accompanied by close hemodynamic and renal function monitoring.
Patients experiencing hypotension during the infusion: Infusion dose should be reduced or discontinued. Other measures to support blood pressure should be initiated (eg, IV fluids, Trendelenburg position). Hypotension may be prolonged (up to hours); once patient is stabilized, may attempt to restart at a lower dose (reduce previous infusion
dose by 30% and omit bolus).
Dosing: Geriatric
Refer to adult dosing. Older individuals may be more sensitive to the effect of nesiritide than younger patients.

Drug contraindications

Hypersensitivity to natriuretic peptide or any component of the formulation; cardiogenic shock (when used as primary therapy); hypotension (persistent systolic blood pressure <100 mm Hg) prior to therapy

Side effects

General
The most frequently reported side effects were hypotension, headache, nausea, renal impairment, and back pain.
Cardiovascular
Very common (10% or more): Hypotension (12%)
Renal
Very common (10% or more): GFR decreased (up to 31.4%), serum creatinine increased (up to 28%)
Nervous system
Common (1% to 10%): Headache, dizziness
Dermatologic
Postmarketing reports: Pruritus, rash
Musculoskeletal
Common (1% to 10%): Back pain
Metabolic
Common (1% to 10%): Hypoglycemia
Gastrointestinal
Common (1% to 10%): Nausea
Local
Postmarketing reports: Infusion site extravasation
Hypersensitivity
Postmarketing reports: Hypersensitivity reaction

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Alerts

Concerns related to adverse effects:
 
  • Anaphylactic/hypersensitivity reactions: Serious anaphylactic or hypersensitivity reactions may occur following administration; obtain careful history and use caution in patients with previous hypersensitivity to other recombinant peptides; nesiritide prepared through recombinant technology using E. coli.
 
  • Hypotension: May cause hypotension; administer in clinical situations when blood pressure may be closely monitored. Effects may be additive with other agents capable of causing hypotension. Hypotensive effects may last for several hours.
 
  • Renal effects: May be associated with development of azotemia; use caution in patients with renal impairment or in patients where renal perfusion is dependent on renin-angiotensin-aldosterone system (eg, severe heart failure); avoid initiation at doses higher than recommended; increases in serum creatinine may occur at an elevated rate.
 
Disease-related concerns:
 
  • Cardiovascular disease: Should not be used in patients with low cardiac filling pressures, or in patients with conditions which depend on venous return including significant valvular stenosis, restrictive or obstructive cardiomyopathy, constrictive pericarditis, and pericardial tamponade.
 
  • Renal impairment: Use with caution in patients with renal impairment.
 
Other warnings/precautions:
 
  • Prolonged infusions: Use caution with prolonged infusions; limited experience with infusions >96 hours.

Points of recommendation

IV: Do not administer through a heparin-coated catheter (concurrent administration of heparin via a separate catheter is acceptable, per manufacturer).
Prime IV tubing with 5 mL of infusion prior to connection with vascular access port and prior to administering bolus or starting the infusion. Withdraw bolus from the prepared infusion bag and administer over 60 seconds. Begin infusion immediately following administration of the bolus.

Pregnancy level

Adverse events were not observed in an animal reproduction study.

Data in humans are inadequate to make recommendations for use in pregnancy

Breast feeding warning

no data

Related drugs

Minoxidil , Hydralazine

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hydralazine


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