HER2 Expressing Solid Tumors
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Locally advanced, unresectable, or metastatic disease based on most recent imaging. The respective cohorts for patient inclusion are: - Cohort A: Metastatic or advanced solid tumors that are HER2 IHC 3+ (excluding breast, gastric cancer, and colorectal cancer). Patients with non-small cell lung cancer can be included. - Cohort B: Metastatic or advanced solid tumors that are HER2 IHC 2+/ISH+ any tumor type (excluding breast, gastric cancer, and colorectal cancer). Patients with non-small cell lung cancer can be included. - Cohort C: Metastatic or advanced solid endometrial cancer that is HER2 IHC 2+ or 1+. - Cohort D: Metastatic or advanced ovarian cancer that is HER2 IHC 2+ or 1+. - Cohort E: Metastatic or advanced solid cervical cancer that is HER2 IHC 2+ or 1+. - Progressed following prior treatment or who have no satisfactory alternative treatment option. - Prior HER2 targeting therapy is permitted. - HER2 expression scored using current ASCO/CAP guidelines for scoring HER2 for gastric cancer. - IHC and ISH results by central assessment as pre-defined for each cohort - Has measurable target disease assessed by the Investigator based on RECIST version 1.1. - Has protocol- defined adequate organ function including cardiac, renal and hepatic function.
Exclusion criteria
Exclusion criteria: - History of non-infectious pneumonitis/ILD that required steroids, current ILD, or where suspected ILD that cannot be ruled out by imaging at screening - Lung-specific intercurrent clinically significant severe illnesses - Uncontrolled infection requiring intravenous (IV) antibiotics, antivirals, or antifungals - Pleural effusion, ascites or pericardial effusion that requires drainage, peritoneal shunt, or Cell-free and Concentrated Ascites Reinfusion Therapy (CART - Known Somatic DNA mutation of HER2 (ERBB2) without tumoral HER2 protein expression. - Patients with primary diagnosis of adenocarcinoma of the breast, adenocarcinoma of the colon or rectum, adenocarcinoma of the gastric body or gastro-esophageal junction will be excluded. - Medical conditions that may interfere with the subject's participation in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - Objective Response Rate (ORR) Confirmed ORR per RECIST 1.1 is the percentage of patients with Complete Response or Partial Response that is subsequently confirmed. | — |
Secondary
| Measure | Time frame |
|---|---|
| - Duration of response (DoR) DOR is defined as the time from the date of first documented response until the date of documented progression or death. - Disease control rate (DCR) DCR is the percentage of subjects who have a best overall response of complete response (CR) or partial response (PR) or stable disease (SD). - Progression free survival (PFS) PFS is the time from date of first dose of study treatment until the date of objective disease progression or death. - Proportion of patients alive and progression-free at 6 months and 12 months The proportion of patients alive and progression-free at 6 and 12 months (Kaplan-Meier estimates). - Overall survival (OS) OS is the time from date of first dose of study treatment until death due to any cause. - Proportion of patients alive at 6 and 12 months The proportion of patients alive at 6 and 12 months (Kaplan-Meier estimates). - Occurrence of adverse events (AEs) and serious adverse events (SAEs) Occurrence of AEs and SAEs graded according to NCI CTCAE v5.0. - Pharmacokinetics (PK) assessed by serum concentration of T-DXd, total anti-HER2 antibody and MAAA-1181 Individual patient data and descriptive statistics will be provided for serum concentration data at each time point for T-DXd, total anti-HER2 antibody and MAAA-1181a - The immunogenicity of T-DXd assessed by the presence of ADAs for T-DXd Individual participant data and descriptive statistics will be provided for data at each time point. | — |
Countries
Australia, Belgium, Canada, Czechia, India, Italy, Japan, Korea, Netherlands, Poland, Russia, Spain, Taiwan, Thailand, United Kingdom, United States
Contacts
Daiichi Sankyo Co., Ltd.