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Early Clinical Evaluation of Novel Broadly Neutralising Monoclonal Antibodies for HIV-1: Safety, Pharmacokinetics, and Neutralisation Profiles of N6LS, PGDM1400LS, and PGT121.414.LS

MedXY Editorial Team•Nov 13, 2025•Clinical Updates
HIVmonoclonal antibodies

Highlights

  • Early-phase clinical trials demonstrate good safety and tolerability profiles of novel broadly neutralising antibodies (bNAbs) N6LS, PGDM1400LS, and PGT121.414.LS in healthy adults.
  • All bNAbs show extended serum half-lives (approximately 49 to 71 days), supporting less frequent dosing schedules for prophylaxis or therapy.
  • Subcutaneous administration is feasible with acceptable bioavailability, enhanced by formulations such as ENHANZE drug product (EDP) for N6LS.
  • Neutralisation activity is preserved in vivo, supporting their potential use in combination strategies to prevent or treat HIV-1 infection.

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