FDA record · Cancer
Hernexeos (zongertinib)
What FDA's own documents say about Hernexeos: what it is approved for, the trials FDA reviewed, the results it reported and the risks on the label.
- Sponsor
- Boehringer Ingelheim
- First approved
- August 8, 2025
- Status
- Accelerated approval, converted to traditional approval
- Read from
- 17 FDA documents, 663 pages
What it is approved for
“HERNEXEOS is a kinase inhibitor indicated for the treatment of adult patients with unresectable or metastatic non-squamous non-small cell lung cancer (NSCLC) whose tumors have HER2 (ERBB2) tyrosine kinase domain activating mutations, as detected by an FDA-authorized test.”
Prescribing information, supplement 006 · PDF p. 1 · fda.gov ↗
Trials FDA reviewed
Mentions: how many sentences across the FDA documents name the trial. NCT ids are read from the documents or, where they give none, matched on ClinicalTrials.gov by the trial's name or protocol code.
Results FDA reported
Sentences from FDA's reviews that give an endpoint's p-value, effect or confidence interval, those reporting a treatment effect first.
ORR
“Statistical significance was achieved with both doses for the test of ORR against the fixed benchmark of 30% (120 mg QD: confirmed ORR = 66.7%; 97.5% CI 53.8, 77.5; 95% CI 55.4, 76.3; p<0.0001; 240 mg QD: confirmed ORR = 78.9%; 97.5% CI 64.8, 88.4; 95% CI 66.7, 87.5; p<0.0001).”
Multi-disciplinary Review · PDF p. 148 · fda.gov ↗
66.7%97.5%95%p<0.000178.9%30%
ORR
“Statistical significance was achieved in the first step of hierarchical testing of ORR against the fixed benchmark of 25% (confirmed ORR: 41.9%, 95% CI 26.4, 59.2, 1-sided p = 0.0147), and in the second step of statistical testing (confirmed ORR in patients with mutations in exon 20 of HER2:”
Multi-disciplinary Review · PDF p. 150 · fda.gov ↗
41.9%95%p = 0.014725%
Safety
Most common adverse reactions
“• Most common adverse reactions (>= 20%) are diarrhea, rash, hepatotoxicity, fatigue, nausea, musculoskeletal pain, and upper respiratory tract infection.”
Prescribing information, supplement 006 · PDF p. 1 · fda.gov ↗
Adverse events the documents discuss most
- pneumonitis 275 mentions
- hepatotoxicity 164 mentions
- left ventricular dysfunction 72 mentions
- death 71 mentions
- thrombocytopenia 32 mentions
- neutropenia 31 mentions
- anemia 30 mentions
- QTc prolongation 21 mentions
Dosing on the label
“The recommended dosage of HERNEXEOS is based on body weight:”
Prescribing information, supplement 006 · PDF p. 2 · fda.gov ↗
FDA documents read
Checked against FDA's copies on September 30, 2026. The sha256 is the fingerprint of the file that was read: download it from fda.gov and compare. Quotes come from the text of each file as read; pages FDA stored as images were read by OCR and are marked.
Generated automatically (auto): the trials, names and dates are drafted from the documents by rules, with no language model; see the method.
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