CUSP06-1001: Targeted treatment with CUSP06 for people with platinum-resistant ovarian cancers and other solid cancersA Phase 1, First-in-Human Study of CUSP06, a Cadherin-6 (CDH6)-Directed Antibody-Drug Conjugate, in Patients With Platinum-Refractory/Resistant Ovarian Cancer and Other Advanced Solid Tumors

Exclusion

• Prior treatment with an ADC with a topoisomerase I (TOP1) payload.
• Active or progressing brain metastases or evidence of leptomeningeal disease. Stable/treated brain metastases are permitted (defined as history of brain metastases previously treated with surgical resection or stereotactic radiosurgery, stable on baseline screening study MRI brain for at least 2 months (compared to comparator MRI brain) and asymptomatic without requirement for steroids or antiseizure medications.
• Persistent toxicities from previous systemic antineoplastic treatments of Grade >1, excluding alopecia and vitiligo.
• Systemic antineoplastic therapy or prohibited co-medications within 5 half-lives or 4 weeks, whichever is shorter, prior to first dose of the study drug, including investigational agents.
• Wide-field radiotherapy (e.g., >30% of marrow-bearing bones) within 4 weeks, or focal radiation with palliative intent outside the field of measurable disease within 2 weeks prior to first dose of the study drug.
• Major surgery within 4 weeks prior to first dose of study drug, or no recovery from side effects of such intervention.
• Has had clinically significant lung disease requiring systemic corticosteroid treatment within the last 6 months of randomization/registration (e.g., interstitial pneumonia, pneumonitis, pulmonary fibrosis, and severe radiation pneumonitis) or who are suspected to have such diseases by imaging at screening period.
• Patients with acute or chronic pancreatitis and/or liver cirrhosis except well compensated cirrhosis (Child-Pugh class A).
• Hepatic insufficiency manifesting as clinical jaundice, hepatic encephalopathy, and/or variceal bleed within 60 days prior to study entry.
• History of liver transplant.
• Prior allogeneic bone marrow transplantation.
• Significant cardiac disease, such as recent (within 6 months prior to first dose of the study drug) myocardial infarction or acute coronary syndromes (including unstable angina pectoris), congestive heart failure (New York Heart Association class III or IV), uncontrolled hypertension, uncontrolled cardiac arrhythmias, severe aortic stenosis.
• History of thromboembolic or cerebrovascular events, including transient ischemic attacks, cerebrovascular accidents, deep vein thrombosis, or pulmonary emboli within 3 months prior to first dose of the study drug.

• Acute and/or clinically significant bacterial, fungal, or viral infection including hepatitis B (HBV), hepatitis C (HCV), known human immunodeficiency virus (HIV).

  • Note: patients with chronic HBV, HCV or HIV infection will be eligible if they are considered upon a mutual agreement of the Investigator and the Medical Monitor as safe for enrollment and meet one of the following additional conditions:
  • Patients with HIV infection are on an established antiretroviral therapy for at least 4 weeks, and have CD4+ T-cell counts ≥350 cells/µL and HIV viral load <50 copies/mL,
  • Patients with serologic evidence of chronic HBV infection receive concurrent anti-HBV therapy and have HBV viral load below the limit of quantification,
  • Patients with a history of HCV infection must have completed curative anti-HCV therapy and have HCV viral load below the limit of quantification,
  • Patients on concurrent anti-HCV therapy have HCV viral load below the limit of quantification.
• Known or suspected allergy to the study drug or any component of the study drug.
• Concurrent participation in another investigational clinical trial.
• Pregnant or breast-feeding females.

• Prior history of malignancy other than inclusion diagnosis within 3 years prior to first dose of the study drug.

  • Note: excluding patients with adequately treated basal cell or squamous cell skin cancer, non-invasive superficial bladder cancer, in situ cervical cancer, in situ breast cancer, and in situ prostate cancer. Other malignancies with low risk of recurrence may also be considered following discussion with the Medical Monitor.
• Any other severe acute or chronic medical or psychiatric conditions or laboratory abnormality that may increase the risk associated with the study participation or the study drug administration or may interfere with the interpretation of study results and, in the judgment of the Investigator, would make the patient inappropriate for enrollment in this study.
• Chest irradiation within 1 year prior to first dose of study drug.
• Gastrointestinal obstruction or radiographic evidence of gastrointestinal obstruction within 4 weeks prior to the first dose of study drug.
• Vaccination with a live vaccine ≤30 days prior to first dose of study drug.
• Use of a strong cytochrome P450 (CYP)3A4 or CYP1A2 inducer or inhibitor ≤14 days prior to first dose of study drug or inability to discontinue use of a strong CYP3A4 or CYP1A2 inducer or inhibitor for the duration of the study.
• Ascites requiring frequent paracentesis for symptomatic management.