Giapreza (angiotensin II acetate, human)
Renin-Angiotensin-Aldosterone System (RAAS) Hormones Intravenous Vial (ML)
Last reviewed · Source: First Databank (FDB) drug data
Overview
Angiotensin II acetate is a synthetic form of endogenous angiotensin II, a peptide hormone of the renin-angiotensin-aldosterone system (RAAS) that causes vasoconstriction and increased blood pressure.
Angiotensin II acetate is a synthetic preparation of endogenous human angiotensin II, a peptide hormone of the renin-angiotensin-aldosterone system (RAAS) that plays an essential role in blood pressure regulation. The drug is a potent vasoconstrictor that is used to increase blood pressure in patients with septic or other forms of distributive shock.
In patients with septic shock, a variety of physiologic responses are activated to restore effective circulating volume, vascular resistance, and arterial pressure, including activation of RAAS and production of angiotensin II. There is some evidence suggesting that patients with septic shock may have a relative deficiency of angiotensin II that may be reversed with exogenous administration of angiotensin II. Angiotensin II increases blood pressure through direct vasoconstriction of the peripheral vasculature in addition to other mechanisms (e.g., aldosterone secretion, vasopressin release, activation of the sympathetic nervous system).
The physiologic effects of angiotensin II are mediated by specific G protein-coupled receptors located in the kidneys, vascular smooth muscle, lung, heart, brain, adrenal gland, pituitary gland, and liver. The angiotensin II receptor type 1 (AT1 receptor) is responsible for the vasoconstrictive effects of angiotensin II; activation of the receptor stimulates calcium/calmodulin-dependent phosphorylation of myosin and causes smooth muscle contraction. Angiotensin II also has been shown to have cardiac remodeling properties and preferential vasoconstrictive effects on renal efferent arterioles.
Following IV infusion, angiotensin II is rapidly metabolized by aminopeptidase A to angiotensin 2-8 (angiotensin III) and by angiotensin-converting enzyme 2 to angiotensin 1-7 in plasma, erythrocytes, and many other major organs (e.g., intestine, kidney, liver, lungs). Angiotensin III retains approximately 40% of the activity of angiotensin II, while angiotensin 1-7 exhibits opposing actions to angiotensin II and causes vasodilation, natriuresis, and reduced blood pressure. The plasma half-life of angiotensin II is less than 1 minute.
Elimination of the drug is not dependent on renal or hepatic routes.
Generic name: angiotensin II acetate, human
Drug class: Renin-Angiotensin-Aldosterone System (RAAS) Hormones
Therapeutic class: Endocrine
Reference product & biosimilars
No reference, biosimilar or interchangeable associated with this drug.
Today’s intelligence on Giapreza
Indications
The following indications are listed for Giapreza:
- Hypotension Due To Distributive Shock
Dosing
Dosage of angiotensin II acetate is expressed in terms of angiotensin II.
Angiotensin II acetate is administered by continuous IV infusion. It is recommended that the drug be infused through a central venous line.
Prior to administration, the commercially available injection concentrate must be diluted in 0.9% sodium chloride injection to a final concentration of 5000 or 10,000 ng/mL depending on the patient's fluid status. In patients who are not fluid restricted, a concentration of 5000 ng/mL may be prepared by adding 1 mL (2.5 mg) of the injection concentrate to an infusion bag containing 500 mL of 0.9% sodium chloride injection. In patients who are fluid restricted, a concentration of 10,000 ng/mL may be prepared by adding 1 mL (2.5 mg) of the injection concentrate to an infusion bag containing 250 mL of 0.9% sodium chloride injection. Diluted solutions may be stored at room temperature or under refrigeration for up to 24 hours.
Solutions of angiotensin II should be inspected visually for particulate matter and discoloration prior to administration.
| Drug label | Dosing type | Instructions |
|---|---|---|
| Giapreza 0.5 Mg/Ml Vial | Maintenance | Infuse 40 nanogram/kg/minute by continuous infusion route. |
| Giapreza 2.5 Mg/Ml Vial | Maintenance | Infuse 40 nanogram/kg/minute by continuous infusion route. |
No dosing information is available for this tab.
Drug interactions
No drug interaction studies have been performed to date with angiotensin II acetate. Concomitant use of angiotensin-converting enzyme (ACE) inhibitors may increase the response to angiotensin II and concomitant use of angiotensin II receptor antagonists (ARBs) may decrease the response to angiotensin II.
There are no contraindication interactions for this drug.
Severe Interaction: Action is required to reduce the risk of severe adverse interaction.
Myelosuppressives; Immunomodulators/Sodium Iodide I 131
SEVERITY LEVEL: 2-Severe Interaction: Action is required to reduce the risk of severe adverse interaction.
MECHANISM OF ACTION: Sodium iodide I 131 can cause depression of the hematopoetic system. Myelosuppressives and immunomodulators also suppress the immune system.(1)
CLINICAL EFFECTS: Concurrent use of sodium iodide I 131 with agents that cause bone marrow depression, including myelosuppressives or immunomodulators, may result in an enhanced risk of hematologic disorders, including anemia, blood dyscrasias, bone marrow depression, leukopenia, and thrombocytopenia. Bone marrow depression may increase the risk of serious infections and bleeding.(1)
PREDISPOSING FACTORS: None determined.
PATIENT MANAGEMENT: The US manufacturer of sodium iodide I 131 states that concurrent use with bone marrow depressants may enhance the depression of the hematopoetic system caused by large doses of sodium iodide I 131.(1) Sodium iodide I 131 causes a dose-dependent bone marrow suppression, including neutropenia or thrombocytopenia, in the 3 to 5 weeks following administration. Patients may be at increased risk of infections or bleeding during this time. Monitor complete blood counts within one month of therapy. If results indicate leukopenia or thrombocytopenia, dosimetry should be used to determine a safe sodium iodide I 131 activity.(1)
DISCUSSION: Hematologic disorders including death have been reported with sodium iodide I 131. The most common hematologic disorders reported include anemia, blood dyscrasias, bone marrow depression, leukopenia, and thrombocytopenia.(1)
There are no moderate interactions for this drug.
Contraindications
The manufacturer states that there are no known contraindications to the use of angiotensin II acetate.
There are no contraindication contraindications for this drug.
- Deep venous thrombosis
- Thromboembolic disorder
There are no moderate contraindications for this drug.
Adverse reactions
Adverse reactions reported in 4% or more of patients receiving angiotensin II in clinical studies include thromboembolic events (e.g., DVT), thrombocytopenia, tachycardia, fungal infection, delirium, acidosis, hyperglycemia, and peripheral ischemia.
More Frequent
- Thromboembolic disorder
Less Frequent
- Acidosis
- Deep venous thrombosis
- Peripheral ischemia
- Thrombocytopenic disorder
Less Frequent
- Delirium
- Fungal infection
- Hyperglycemia
- Tachycardia
Precautions
No enhanced messaging available.
Safety and efficacy of angiotensin II have not been established in pediatric patients.
There are insufficient data in pregnant women to determine whether angiotensin II is associated with a risk of adverse developmental effects. Animal reproduction studies have not been conducted with the drug.
Septic or other distributive shock is a medical emergency that can be fatal if untreated; a delay in treatment in pregnant women with hypotension associated with shock is likely to increase the risk of maternal and fetal morbidity and mortality.
It is not known whether angiotensin II is distributed into human milk of if the drug has any effects on the nursing infant or on milk production.
In the ATHOS-3 study, 48% of the total patient population was 65 years of age or older. No substantial differences in safety or efficacy of angiotensin II have been observed between geriatric patients (65 years of age or older) and younger adults.
ICD codes
| Code | Type | Description |
|---|---|---|
| Hypotension due to distributive shock | ||
| A48.3 | ICD10CM | Toxic shock syndrome |
| E27.2 | ICD10CM | Addisonian crisis |
| I95 | ICD10CM | Hypotension |
| R65.21 | ICD10CM | Severe sepsis with septic shock |
| T78.2 | ICD10CM | Anaphylactic shock, unspecified |
| T78.2xxA | ICD10CM | Anaphylactic shock, unspecified, initial encounter |
| T81.12 | ICD10CM | Postprocedural septic shock |
| T81.12xA | ICD10CM | Postprocedural septic shock, initial encounter |
ICD code information from First Databank (FDB).
Formulary status
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Last reviewed · Source: First Databank (FDB) drug data
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