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NCT Number: NCT03368196

DS-8201a in Patients With Cancer That Tests Positive for Human Epidermal Growth Factor Receptor 2 (HER2) Protein

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 DS-8201a (trastuzumab deruxtecan), a HER2-targeted antibody and topoisomerase I inhibitor conjugate.

The safety and tolerability profile of DS-8201a will be assessed in Chinese patients with certain types of stomach and breast cancer that test positive for HER2. It also will test how DS-8201a moves within the body (pharmacokinetics).

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Key information

Conditions

Adenocarcinoma, Gastric Adenocarcinoma Breast Diseases Breast Neoplasms Carcinoma Digestive System Diseases Digestive System Neoplasms Gastrointestinal Diseases Gastrointestinal Neoplasms Neoplasm, Breast Neoplasms Neoplasms by Histologic Type Neoplasms by Site Neoplasms, Glandular and Epithelial Skin Diseases Skin and Connective Tissue Diseases Stomach Diseases Stomach Neoplasms

Age range

20 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

National Taiwan University Hospital, Taipei, Taiwan

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About this study

The expected time from the first subject's enrollment until the last subject's enrollment is approximately 8 months. The screening period is 28 days and each cycle of treatment is 21 days.

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Has a pathologically documented unresectable or metastatic gastric or GEJ adenocarcinoma, or breast cancer, with HER2 expression [immunohistochemistry (IHC) 3+, 2+, or 1+ and/or in situ hybridization (ISH) +] that is refractory to or intolerable with standard treatment, 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 medical history of myocardial infarction within 6 months before enrollment
  • Has a medical history of ventricular arrhythmias, other than rare occasional premature ventricular contractions
  • Has uncontrolled or significant cardiovascular disease
  • Has any other history or condition that might compromise:
  • Safety of the participant or offspring
  • Safety of study staff
  • Analysis of Results

Treatment and study plan

DS-8201a

Drug

An antibody drug conjugate

Primary outcomes

  1. Treatment-emergent Adverse Events Following Treatment With DS-8201a (Trastuzumab Deruxtecan)

    Time frame: Baseline up to withdrawal of consent, progressive disease, or unacceptable toxicity (whichever came first), up to approximately 5 months post-dose

    Adverse events (AEs) were to be coded using MedDRA Version 20.1 and assigned severity grades based on Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03. A treatment-emergent adverse event (TEAE) was defined as an AE that occurred, having been absent before the first dose of study drug, or had worsened in severity or seriousness after initiating the study drug until 47 days after last dose of study drug.

Secondary outcomes

  1. Pharmacokinetic Parameter of Maximum (Peak) Observed Serum Concentration (Cmax) Following Cycle 1 and Cycle 3 Treatment With DS-8201a (Trastuzumab Deruxtecan)

    Time frame: Cycles 1 and 3, Day 1: before infusion (BI), end of infusion (EOI), 2 hours, 4 hours, 7 hours; Days 2 and 4, 24 hours, 72 hours; Days 8, and 15; Cycles 2, 4, 6 and 8, Day 1: BI and EOI

    Maximum concentration (Cmax) of DS-8201a and total anti-HER2 antibody was assessed.

  2. Pharmacokinetic Parameter of Maximum (Peak) Observed Serum Concentration (Cmax) of MAAA-1181a Following Cycle 1 and Cycle 3 Treatment With DS-8201a (Trastuzumab Deruxtecan)

    Time frame: Cycles 1 and 3, Day 1: before infusion (BI), end of infusion (EOI), 2 hours, 4 hours, 7 hours; Days 2 and 4, 24 hours, 72 hours; Days 8, and 15; Cycles 2, 4, 6 and 8, Day 1: BI and EOI

    Maximum concentration (Cmax) of MAAA-1181a was assessed.

  3. Pharmacokinetic Parameter of Area Under the Serum Concentration-time Curve During Dosing Interval (AUCtau) Following Cycle 1 and Cycle 3 Treatment With DS-8201a (Trastuzumab Deruxtecan)

    Time frame: Cycles 1 and 3, Day 1: before infusion (BI), end of infusion (EOI), 2 hours, 4 hours, 7 hours; Days 2 and 4, 24 hours, 72 hours; Days 8, and 15; Cycles 2, 4, 6 and 8, Day 1: BI and EOI

    Area under the serum concentration-time curve during dosing interval (AUCtau) of DS-8201a and total anti-HER2 antibody was assessed.

  4. Pharmacokinetic Parameter of Area Under the Serum Concentration-time Curve During Dosing Interval (AUCtau) of MAAA-1181a Following Cycle 1 and Cycle 3 Treatment With DS-8201a (Trastuzumab Deruxtecan)

    Time frame: Cycles 1 and 3, Day 1: before infusion (BI), end of infusion (EOI), 2 hours, 4 hours, 7 hours; Days 2 and 4, 24 hours, 72 hours; Days 8, and 15; Cycles 2, 4, 6 and 8, Day 1: BI and EOI

    Area under the serum concentration-time curve during dosing interval (AUCtau) of MAAA-1181a was assessed.

  5. Best Overall Response By The Investigator's Assessment (Unconfirmed) in Participants With HER2-Positive Advanced and/or Refractory Gastric, Gastroesophageal Junction Adenocarcinoma, or Breast Cancer

    Time frame: Baseline up to withdrawal of consent, progressive disease, or unacceptable toxicity (whichever came first), up to approximately 5 months post-dose

    Best overall response (BOR) was assessed by the investigator based on Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1. Complete 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.

  6. Objective Response Rate (Unconfirmed) As Assessed in Participants With HER2-Positive Advanced and/or Refractory Gastric, Gastroesophageal Junction Adenocarcinoma, or Breast Cancer

    Time frame: Baseline up to withdrawal of consent, progressive disease, or unacceptable toxicity (whichever came first), up to approximately 5 months post-dose

    Objective response rate (ORR; 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.

  7. Disease Control Rate (Unconfirmed) As Assessed in Participants With HER2-Positive Advanced and/or Refractory Gastric, Gastroesophageal Junction Adenocarcinoma, or Breast Cancer

    Time frame: Baseline up to withdrawal of consent, progressive disease, or unacceptable toxicity (whichever came first), up to approximately 5 months post-dose

    Disease control rate (DCR; defined as participants who achieved CR, PR, and SD) 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, PR was defined as at least a 30% decrease in the sum of diameters of target lesions, and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD defined as at least a 20% increase in the sum of diameters of target lesions.

Sponsors and collaborators

Lead sponsor

Daiichi Sankyo Taiwan Ltd., a Daiichi Sankyo Company

Industry

Collaborators

  • AstraZeneca

Registry information

Official study title

Phase 1, Multicenter, Open-label Study of DS-8201a to Assess Safety and Pharmacokinetics in Subjects With HER2-Positive Advanced and/or Refractory Gastric, Gastroesophageal Junction Adenocarcinoma, or Breast Cancer

Important dates

Study start
2018
Primary completion
2018
Study completion
2022
First posted
Dec 11, 2017
Registry last updated
Nov 3, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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