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Peptide Drug 505(b)(2) Development

Development pathway for modified peptide drug products using the FDA 505(b)(2) regulatory pathway.

By Encyclopeptide Editorial | 1 min read
505b2 modified-drug regulatory reference-drug new-formulation

Overview

The 505(b)(2) pathway allows development of modified peptide drug products by referencing existing safety and efficacy data.

505(b)(2) vs ANDA

Feature505(b)(2)ANDA
ModificationYes (new dosage form,No (same as reference)
new route, new strength)
Studies neededLimited new studiesBioequivalence only
Exclusivity3 yearsNone

Qualifying Modifications

  • New dosage form
  • New route of administration
  • New strength
  • New combination
  • Limited changes requiring new data

Development Considerations

  • Selection of reference drug
  • Justification for modification
  • Clinical study requirements
  • Marketing exclusivity

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