HCC is a common cancer worldwide and a leading cause of cancer-related death. Lung cancer is the most frequently diagnosed cancer in the world, and the leading cause of cancer deaths. The purpose of this study is to assess adverse events and change in disease activity when ABBV-324 is given to adult participants to treat hepatocellular cancer (HCC) or squamous-cell non-small cell lung cancer (LUSC).
ABBV-324 is an investigational drug being developed for the treatment of HCC and LUSC. Study doctors put the participants in groups called arms. Each arm receives ABBV-324 alone (monotherapy) or a comparator drug, lenvatinib followed by a safety follow-up period. Approximately 232 HCC or LUSC will be enrolled in the study in approximately 45 sites worldwide.
In the dose escalation stage participants will be treated with increasing intravenous (IV) doses of ABBV-324 until the dose reached is tolerable and expected to be efficacious. In the dose optimization stage participants will receive ABBV-324, or a comparator of oral lenvatinib. The study will run for a duration of approximately 6.5 years.
There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at an approved institution (hospital or clinic). The effect of the treatment will be frequently checked by medical assessments, blood tests, questionnaires and side effects.
Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
Hepatocellular cancer (HCC) only: Child-Pugh A classification within 7 days before Cycle 1, Day 1 dosing.
Laboratory values meeting the criteria outlined in the protocol.
QT interval corrected for heart rate (QTc) < 470 msec (using Fridericia's correction), no Grade 3 arrythmia, and no other clinically significant cardiac abnormalities.
Unresolved clinically significant adverse events (AEs) > Grade 1 from prior anticancer therapy except for alopecia.
Untreated brain or meningeal metastases (i.e., participants with history of metastases are eligible provided they do not require ongoing steroid treatment for cerebral edema and have shown clinical and radiographic stability for at least 14 days after definitive therapy). Participants may continue with antiepileptic therapy if required.
History of interstitial lung disease (ILD) or pneumonitis that required treatment with systemic steroids, or any evidence of active ILD or pneumonitis on screening chest computed tomography (CT) scan.
History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis obliterans), drug-induced pneumonitis, or idiopathic pneumonitis.