Health Canada Proposes Elimination of Phase III Clinical Trials for Biosimilar Approvals
- Health Canada has released draft guidance that would eliminate the requirement for comparative Phase III clinical trials in biosimilar drug approvals, marking a significant policy reversal.
- The proposed changes would limit clinical requirements to comparative pharmacokinetic studies and optional pharmacodynamic evaluations, focusing instead on extensive analytical similarity data.
- This regulatory shift aligns with similar moves by the European Medicines Agency and FDA discussions that have led some companies to terminate or minimize Phase III biosimilar trials.
- The consultation period for the draft guidance runs until September 8, 2025, with potential implementation representing a pivotal change in Canada's biosimilar regulatory landscape.