Evidence Level:Sensitive: C2 – Inclusion Criteria
Title:
A Study of IMU-131(HER-Vaxx) and Chemotherapy Compared to Chemotherapy Only in Patients With HER2 Positive Advanced Gastric Cancer
Excerpt:...HER2/neu overexpression (3+ by immunohistochemistry (IHC) or if IHC 2+ confirmed by fluorescent in situ hybridization [FISH] or chromogenic in situ hybridization [CISH])....
Evidence Level:Sensitive: C2 – Inclusion Criteria
Title:
A Study of IMU-131 (HER-Vaxx) in Combination With Chemotherapy or Pembrolizumab in Patients With Metastatic HER2/Neu Over-Expressing Gastric Cancer (nextHERIZON)
Excerpt:...Age ≥ 18 years with confirmed diagnosis of advanced or metastatic HER2/neu overexpressing gastric or GEJ adenocarcinoma; 2....
Less C2 evidence
Evidence Level:Sensitive: C3 – Early Trials
Title:
1536P - HERIZON: A phase II study of HER-Vaxx (IMU-131), a HER2-targeting peptide vaccine plus standard of care chemotherapy in patients with HER2+ advanced stomach cancer - Dose-dependent anti-cancer antibodies correlating with improved clinical outcome
Excerpt:Pients were randomized to chemotherapy alone (n=17) or HER-Vaxx (50μg dose, n=19; 100μg, n=7) plus chemotherapy….Vaccination with HER-Vaxx in patients with Her2-overexpressing GC at doses of 50μg and 100μg led to an anti-tumour effect that correlated with anti-Her2 IgG antibody levels.
Evidence Level:Sensitive: C3 – Early Trials
Title:
HERIZON: A phase 2 study of HER-Vaxx (IMU-131), a HER2-targeting peptide vaccine, plus standard of care chemotherapy in patients with HER2-overexpressing metastatic or advanced gastric/GEJ adenocarcinoma— Overall survival analysis.
Excerpt:Analysis showed a 42% survival benefit for patients treated with HER-Vaxx plus chemotherapy compared to chemotherapy alone. This translated into an OS HR of 0.580 (80% 2-sided CI: 0.362, 0.927) with a statistically significant p-value of 0.066. The median OS for patients receiving HER-Vaxx plus chemotherapy was 13.9 (7.5, 14.3) months, compared to 8.3 (6.0, 9.6) months in patients treated with chemotherapy alone....These data demonstrate that in patients with HER2 over-expressing gastric/GEJ cancer active HER2 immunization with HER-Vaxx is safe and provides relevant clinical benefit over standard of care chemotherapy.
DOI:10.1200/JCO.2023.41.3_suppl.289
Evidence Level:Sensitive: C3 – Early Trials
Title:
74MO - HERIZON overall survival results: A study of IMU-131, a HER2 targeting peptide vaccine, plus standard of care chemotherapy in patients with HER2 overexpressing metastatic or advanced gastric/GEJ cancer
Excerpt:Analysis showed a 42% survival benefit for patients treated with IMU-131 plus chemotherapy compared to chemotherapy alone….The median OS for patients receiving IMU-131 plus chemotherapy was 13.9 months, compared to 8.3 months in patients treated with chemotherapy alone....These results demonstrate that active immunization with the B-lymphocyte stimulating HER2 vaccine, IMU-131 (HER-Vaxx), may provide treatment benefits consistent with traditional monoclonal antibodies with a corresponding adaptive immune response without added toxicity.