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Dynavax Announces Positive Results for Z-1018 Shingles Vaccine

Dynavax Technologies Corporation (DVAX) | August 21, 2025

By Liam Parker

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Dynavax announced positive topline results from Part 1 of its Phase 1/2 trial of Z-1018, a novel shingles vaccine candidate.

Z-1018 demonstrated robust immune responses and favorable tolerability profile compared to Shingrix.

The company selected the optimal dose of Z-1018 for advancement to Part 2 of the trial in older adults.

Robust Immune Responses

Z-1018 showed a 100% humoral vaccine response rate at the selected dose.

Favorable Tolerability Profile

Z-1018 exhibited lower post-injection reactions compared to Shingrix.

Aiming for Best-in-Class Profile

Dynavax aims to disrupt the shingles vaccine market dominated by one product.

  • The positive data marks a significant milestone for Dynavax's shingles vaccine program.
  • Plans are underway to initiate Part 2 of the trial in older adults to further de-risk the program.
  • Z-1018's innovative approach could potentially disrupt the multi-billion-dollar shingles vaccine market.

Dynavax's Z-1018 vaccine has shown promising results and a potential to challenge the current market leader, offering a best-in-class profile.