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A Phase 1b Study Evaluating the Safety, Tolerability, Pharmacokinetics and Efficacy of Delta-like Protein 3 Half-life Extended Bispecific T-cell Engager AMG 757 in Subjects with De Novo or Treatment Emergent Neuroendocrine Prostate Cancer

A Phase 1b Study Evaluating the Safety, Tolerability, Pharmacokinetics and Efficacy of Delta-like Protein 3 Half-life Extended Bispecific T-cell Engager AMG 757 in Subjects with De Novo or Treatment Emergent Neuroendocrine Prostate Cancer - 20200040

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON51934
Enrollment
3
Registered
2021-01-04
Start date
2022-03-22
Completion date
Unknown
Last updated
2024-09-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

neuro-endocriene prostaatkanker Neuroendocrine Prostate Cancer Prostate Cancer

Interventions

Tarlatamab will be administered as a short-term IV infusion Q2W (with step dosing) in a 28-day cycle as monotherapy

Sponsors

Amgen
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: o Adult subjects (>= 18 years of age) with metastatic de novo or treatment-emergent NEPC defined as one or more of the following will be eligible to enroll: histological diagnosis of small cell NEPC, prostate carcinoma with neuroendocrine differentiation as defined by positive immunohistochemical staining for chromogranin and/or synaptophysin in the majority of the tumor sample or >= 2 alterations in Tp53, RB1, and/or PTEN by immunohistochemistry (IHC) or genomic analyses of baseline tumor tissue or circulating tumor DNA (ctDNA). o Subjects are required to have progressed on at least 1 line of prior treatment, including a platinum containing regimen for de novo NEPC (if at the time of NEPC diagnosis they had no prior diagnosis or treatment for prostate carcinoma) or an androgen signaling inhibitor (eg, abiraterone, enzalutamide, and/or apalutamide) if treatment-emergent (had a previous diagnosis of prostate carcinoma prior to NEPC diagnosis). o Subjects must have measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria with Prostate Cancer Working Group 3 (PCWG3) guidelines, have an Eastern Cooperative Oncology Group (ECOG) performance status of

Exclusion criteria

Exclusion criteria: -History of other malignancy within the past 2 years -Untreated (includes new lesions or progression in previously treated lesions) or symptomatic brain metastases and leptomeningeal disease -History or presence of relevant CNS pathology such as uncontrolled epilepsy or seizure disorder, aphasia, paresis, dementia, severe brain injuries, Parkinson*s disease, cerebellar disease, organic brain disorder, or psychosis -Myocardial infarction within 12 months of study day 1, symptomatic congestive heart failure (New York Heart Association > class II), unstable angina, or clinically significant uncontrolled cardiac arrhythmia -History of arterial thrombosis (eg, stroke or transient ischemic attack) within 12 months of first dose of tarlatamab

Design outcomes

Primary

MeasureTime frame
1. Treatment-emergent adverse events, treatment-related adverse events, and changes in vital signs, electrocardiogram (ECG), and clinical laboratory tests 2. Dose limiting toxicities (DLTs)

Secondary

MeasureTime frame
1. o Objective response (OR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 o Duration of response (DOR) per RECIST 1.1 o Radiographic Progression-free survival (PFS) per Prostate Cancer Working Group 3 (PCWG3) o Overall survival (OS) o Disease Control Rate (DCR) per RECIST 1.1 2. PK parameters for tarlatamab following intravenous (IV) administration including, but not limited to, maximum serum concentration (Cmax), minimum serum concentration (Cmin), area under the concentration-time curve (AUC) over the dosing interval, accumulation ratio, and half-life (t1/2)

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)