Enfuvirtide

DEA Class; Rx

Common Brand Names; Fuzeon

  •  HIV, Fusion Inhibitors

Fusion inhibitor
For use with other antiretroviral agents to treat antiretroviral-experienced patients with evidence of ongoing viral replication
98% of patients develop injection site reactions

Indicated for the treatment of advanced human immunodeficiency virus (HIV) infection in combination with other antiretroviral agents in treatment-experienced patients with evidence of HIV replication despite ongoing antiretroviral therapy.

 

Hypersensitivity

  • Difficult to separate from background regimen
  • Multiple inj site rxn (98%)
  • Pain & discomfort (96%)
  • Erythema (91%)
  • Induration (90%)
  • Nodules and cysts (80%)
  • Pruritis (65%)
  • Ecchymosis (52%)
  • Diarrhea (31%)
  • Nausea (22%)
  • Fatigue (20%)
  • Periph. neuropathy
  • Insomnia
  • 1-10%
  • Difficult to separate from background regimen
  • Asthenia
  • Depression
  • Pruritis
  • Abdominal pain
  • Anorexia
  • Decreased appetite
  • Weight loss
  • Myalgia
  • Cough
  • Herpes simplex
  • Influenza-like illness
  • Pneumonia
  • Sinusitis
  • Lymphadenopathy
  • Pancreatitis

Use only in combination with other antiretrovirals

Each injection should be in a different site than the previous one (upper arm, anterior thigh, abdomen)

Monitor for signs and symptoms of pneumonia

Low initial CD4+ T-cell count and high initial viral load

Pulmonary disease, smoking

If pt becomes pregnant, call Antiretroviral Pregnancy Registry 1-800-258-4263

The possibility exists that this drug could result in a false-positive HIV test using (ELISA); use of a confirmatory test (Western blot) is advised

Risk of immune reconstitution syndrome if used in combination with other antiretroviral drugs; patients may develop an inflammatory response to indolent or residual opportunistic infection

Pregnancy Category: B

Lactation: Unknown whether enfuvirtide is excreted in milk; avoid in breastfeeding women; the CDC advises HIV-infected women not to breast-feed to avoid postnatal transmission of HIV

Adults

180 mg/day subcutaneously.

Geriatric

180 mg/day subcutaneously.

Adolescents

4 mg/kg/day (Max: 180 mg/day) subcutaneously.

Children

weight 11 kg or more: 4 mg/kg/day (Max: 180 mg/day) subcutaneously.
weight less than 11 kg: Safety and efficacy have not been established.

Infants

weight 11 kg or more: 4 mg/kg/day subcutaneously.
weight less than 11 kg: Safety and efficacy have not been established.

Neonates

Safety and efficacy have not been established.

Enfuvirtide 

injection, powder for reconstitution

  • 90mg/mL (reconstituted)
  • NOTE: 108mg vial reconstituted with 1.1mL sterile water delivers 90mg/mL

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