Description:
HER2-positive cancer is a cancer that tests positive for a protein called human epidermal
growth factor receptor 2 (HER2). HER2 promotes the growth of certain cancer cells. This study
will test an experimental drug called DS-8201a that has not been approved by the health
authorities yet.
DS-8201a will be tested for safety in patients with advanced solid malignant tumors that test
positive for HER2. It also will test how DS-8201a moves within the body (pharmacokinetics).
Title
- Brief Title: Study of DS-8201a for Participants With Advanced Solid Malignant Tumors
- Official Title: A Phase 1, Multicenter, Open-label, Single Sequence Crossover Study to Evaluate Drug-drug Interaction Potential of OATP1B/CYP3A Inhibitor on the Pharmacokinetics of DS-8201a in Subjects With HER2-expressing Advanced Solid Malignant Tumors
Clinical Trial IDs
- ORG STUDY ID:
DS8201-A-A104
- SECONDARY ID:
173790
- NCT ID:
NCT03383692
Conditions
Interventions
Drug | Synonyms | Arms |
---|
DS-8201a | | Cohort 1: DS-8201a + Ritonavir |
Ritonavir | Norvir | Cohort 1: DS-8201a + Ritonavir |
Itraconazole | Sporanox, Orungal | Cohort 2: DS-8201a + Itraconazole |
Purpose
HER2-positive cancer is a cancer that tests positive for a protein called human epidermal
growth factor receptor 2 (HER2). HER2 promotes the growth of certain cancer cells. This study
will test an experimental drug called DS-8201a that has not been approved by the health
authorities yet.
DS-8201a will be tested for safety in patients with advanced solid malignant tumors that test
positive for HER2. It also will test how DS-8201a moves within the body (pharmacokinetics).
Detailed Description
The expected time from the first subject's enrollment until the last subject's enrollment is
approximately 8.5 months. The screening period is 28 days and each cycle of treatment is 21
days.
The data for the primary analysis will cutoff after all subjects have either discontinued the
study or completed at least 3 cycles, whichever comes first. After the primary analysis, the
main study will be closed and transition to the extension period.
Depending on the preliminary results of Cohort 1, Sponsor may decide whether Cohort 2 will be
opened or not.
The number of treatment cycles is not fixed in this study. Subjects who continue to derive
clinical benefit from the study drug in the absence of withdrawal of consent, progressive
disease (PD), or unacceptable toxicity may continue the study drug.
Trial Arms
Name | Type | Description | Interventions |
---|
Cohort 1: DS-8201a + Ritonavir | Experimental | DS-8201a will be administered as an intravenous (IV) solution once every 3 weeks (Q3W) + Ritonavir twice daily (BID) on Day 17 of Cycle 2 until Day 21 of Cycle 3 | |
Cohort 2: DS-8201a + Itraconazole | Experimental | DS-8201a will be administered as an intravenous (IV) solution once every 3 weeks (Q3W) + Itraconazole BID on Day 17 of Cycle 2 followed by 200 mg daily (QD) until Day 21 of Cycle 3 | |
Eligibility Criteria
Inclusion Criteria:
- Has a pathologically documented unresectable or metastatic solid malignant tumor, with
HER2 expression [immunohistochemistry (IHC) 3+, 2+, or 1+ and/or in situ hybridization
(ISH) +], Next Generation Sequencing, or other analysis techniques as appropriate]
that is refractory to or intolerable with at least one prior systemic chemotherapy
regimen, or for which no standard treatment is available
- Has a left ventricular ejection fraction (LVEF) ≥ 50%
- Has an Eastern Cooperative Oncology Group performance status (ECOG PS) score of 0 or 1
Exclusion Criteria:
- Has a contraindication for receiving ritonavir or itraconazole according to the
prescribing information
- Has a medical history of myocardial infarction within 6 months before enrollment or
symptomatic congestive heart failure
Maximum Eligible Age: | N/A |
Minimum Eligible Age: | 20 Years |
Eligible Gender: | All |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | Pharmacokinetic Parameter of Maximum (Peak) Observed Serum Concentration (Cmax) Following Treatment With DS-8201a and Ritonavir - Cohort 1 |
Time Frame: | Cycle 1: Day 1, pre-dose and end of infusion (EOI); Cycles 2 and 3: Day 1, pre-dose, EOI, 2 hours, 4 hours, 7 hours; Day 2, 4, 8, 12, 17, and 22; Cycles 4, 6 and 8: Day 1, pre-dose and EOI (each cycle is 22 days) |
Safety Issue: | |
Description: | Maximum concentration (Cmax) was assessed for DS-8201a and total Anti-HER2 antibody. |
Secondary Outcome Measures
Measure: | Best Objective Response as Confirmed By The Investigator's Assessment in Participants With HER2-Expressing Advanced Solid Malignant Tumors |
Time Frame: | Baseline up to disease progression, death, lost to follow up, or study discontinuation (whichever comes first), up to approximately 9 months post-dose |
Safety Issue: | |
Description: | Best objective response (BOR) was assessed by the investigator based on Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1. Completed response (CR) was defined as a disappearance of all target lesions, PR was defined as at least a 30% decrease in the sum of diameters of target lesions, and stable disease (SD) was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD; at least a 20% increase in the sum of diameters of target lesions. |
Measure: | Objective Response Ratio (ORR) as Confirmed By The Investigator's Assessment in Participants With HER2-Expressing Advanced Solid Malignant Tumors |
Time Frame: | Baseline up to disease progression, death, lost to follow up, or study discontinuation (whichever comes first), up to approximately 9 months post-dose |
Safety Issue: | |
Description: | Objective response ratio (ORR) was defined as the proportion of participants who achieved CR and PR as assessed by the investigator based on Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1. CR was defined as a disappearance of all target lesions and PR was defined as at least a 30% decrease in the sum of diameters of target lesions. |
Measure: | Objective Response Rate as Confirmed By The Investigator's Assessment in Participants With HER2-Expressing Advanced Solid Malignant Tumors |
Time Frame: | Baseline up to disease progression, death, lost to follow up, or study discontinuation (whichever comes first), up to approximately 9 months post-dose |
Safety Issue: | |
Description: | Objective response rate (defined as participants who achieved CR and PR) was assessed by the investigator based on Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1. CR was defined as a disappearance of all target lesions and PR was defined as at least a 30% decrease in the sum of diameters of target lesions. ORR with confirmation is Objective Response Rate applying a confirmed response of CR/PR in RECIST version 1.1. |
Details
Phase: | Phase 1 |
Primary Purpose: | Interventional |
Overall Status: | Active, not recruiting |
Lead Sponsor: | Daiichi Sankyo Co., Ltd. |
Trial Keywords
- Unresectable or metastatic solid malignant tumors
- Solid malignant tumors
- Oncology
- HER2
- Antibody drug conjugate
- ADC
Last Updated
June 14, 2021