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pemgarda

Anti-SARS-CoV-2 spike monoclonal antibody (pemivibart) — passive immunoprophylaxis · Monoclonal antibody (for SARS-CoV-2 prevention)

START
4,500 mg IV over 60 min every 3 months (observe ≥2 h)
TYPICAL MAX
4,500 mg every 3 months
STOP IF
Anaphylaxis / severe infusion reaction
WATCH
Variant-susceptibility status (efficacy depends on prevailing variants)
CDSCO approvedATC J06BD
Renal dose adjustmenteGFR mL/min/1.73m²
FULLNo dose adjustment at any eGFR90

KDIGO 2024 + manufacturer label

Pharmacokineticsplasma · t hours
6minONSET1hPEAK4.3w12.9wDURATION
ONSET
6min · infusion start
PEAK
1h · end infusion
4.3w · Fc-ext t½
DURATION
12.9w · q3-month
EXCRETION
Proteolytic catabolism; not excreted intact
route + CYP
INTERACTIONS
1 major
SEVERE in our sources
PREGNANCY
Use only if clearly needed; limited data.
FDA category + note
Top interactionssee all 5
  • Active Sars Cov 2 InfectionSevereDatabaseKimi deep-research + Cla

Mechanism

Human IgG1 monoclonal antibody binding the SARS-CoV-2 spike receptor-binding domain to block ACE2 engagement; provides passive immunity for moderately-to-severely immunocompromised adults unlikely to respond to vaccination.

Indications

Pre-exposure prophylaxis of COVID-19 in moderately-to-severely immunocompromised adults (when active variants susceptible)

Dosing

Adult
4,500 mg IV over ~60 min every 3 months (under EUA); observe ≥2 h post-infusion.
Pediatric
Not established.
Renal adjustment
No specific adjustment.
Hepatic adjustment
No specific adjustment.
Geriatric
Standard adult dose.
Max dose
4,500 mg every 3 months

Pharmacokinetics

Onset
Neutralising titres immediate (post-infusion)
Peak effect
End of infusion
Duration
~3 months (q3-month dosing)
Half-life
Several weeks (engineered Fc-extended)
Bioavailability
IV 100%
Protein binding
Not applicable (antibody)
Metabolism
Proteolytic catabolism
Excretion
Catabolised (not renally/hepatically excreted intact)

Contraindications

  • Prior severe hypersensitivity to pemivibart or monoclonal antibodies
  • Active SARS-CoV-2 infection (treatment, not prophylaxis)

Side effects

Common
Infusion reactionsPyrexiaHeadacheFatigueNausea
Serious
  • Anaphylaxis / serious infusion reactions (boxed)
  • Severe hypersensitivity

Pregnancy & lactation

Pregnancy

Use only if clearly needed; limited data.

Lactation

Limited data; weigh benefit/risk.

Drug interactions

Active Sars Cov 2 Infection
Severe
Database

EUA is for prophylaxis only, not treatment

Use treatment agents if infected

Source: Kimi deep-research + Cla

Covid 19 Vaccines
Mild
Database

Passive antibody could blunt vaccine response

Coordinate timing with vaccination team

Source: Kimi deep-research + Cla

Immunosuppressants
Mild
Database

Intended target population

Indicated use

Source: Kimi deep-research + Cla

Live Vaccines
Mild
Database

Passive antibody may interfere

Per immunisation schedule guidance

Source: Kimi deep-research + Cla

Other Monoclonal Antibodies
Mild
Database

No specific PK interactions

No action

Source: Kimi deep-research + Cla

Related guidelines

Ask House about pemgarda

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: Harrison 22e·Verified: 2026-05-20 · House clinical team·Cockpit curated: 2026-05-20