DS-8201a in Human Epidermal Growth Factor Receptor 2 (HER2)-Expressing Gastric Cancer [DESTINY-Gastric01]

March 17, 2022 updated by: Daiichi Sankyo Co., Ltd.

A Phase 2, Multicenter, Open-label Study of DS-8201a in Subjects With HER2-expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma

The primary purpose of this trial is to compare the efficacy and safety of DS-8201a and physician's choice treatment in HER2-overexpressing advanced gastric or gastroesophageal junction adenocarcinoma patients who have progressed on two prior treatment regimens including fluoropyrimidine agent, platinum agent, and trastuzumab.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
233

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Japan
      • Chiba, Japan, 260-8717
        • Chiba Cancer Center
      • Fukui, Japan, 910-8526
        • Fukui Prefectural Hospital
      • Fukuoka, Japan, 811-1395
        • National Hospital Organization Kyushu Cancer Center
      • Fukuoka, Japan, 812-8582
        • Kyushu University Hospital
      • Gifu, Japan, 501-1194
        • Gifu University Hospital
      • Hiroshima, Japan, 731-0293
        • Hiroshima City Asa Citizens Hospital
      • Hiroshima, Japan, 734-8530
        • Hiroshima Prefectural Hospital
      • Kochi, Japan, 781-8555
        • Kochi Health Sciences Center
      • Niigata, Japan, 951-8566
        • Niigata Cancer Center Hospital
      • Okayama, Japan, 700-8558
        • Okayama University Hospital
      • Osaka, Japan, 589-8511
        • Kindai University Hospital
      • Osaka, Japan, 558-8558
        • Osaka General Medical Center
      • Osaka, Japan, 541-8567
        • Osaka International Cancer Institute
      • Osaka, Japan, 534-0021
        • Local Incorporated Administrative Agency Osaka City Hospital Organization Osaka City General Hospital
      • Saitama, Japan, 362-0806
        • Saitama Cancer Center
      • Shizuoka, Japan, 411-8777
        • Shizuoka Cancer Center
      • Shizuoka, Japan, 420-8527
        • Shizuoka General Hospital
      • Tokyo, Japan, 160-8582
        • Keio University Hospital
    • Aichi
      • Nagoya, Aichi, Japan, 464-8681
        • Aichi Cancer Center Hospital
    • Aomori
      • Hirosaki, Aomori, Japan, 036-8563
        • Hirosaki University Hospital
    • Chiba
      • Kashiwa, Chiba, Japan, 277-8577
        • National Cancer Center Hospital East
    • Ehime
      • Matsuyama, Ehime, Japan, 791-0280
        • National Hospital Organization Shikoku Cancer Center
    • Fukuoka
      • Kitakyushu, Fukuoka, Japan, 806-8501
        • Japan Community Health Care Organization Kyushu Hospital
    • Gunma
      • Ōta, Gunma, Japan, 373-8550
        • Gunma Prefectural Cancer Center
    • Hiroshima
      • Kure, Hiroshima, Japan, 737-0023
        • Kure Medical Center
    • Hokkaido
      • Sapporo, Hokkaido, Japan, 060-8648
        • Hokkaido University Hospital
    • Hyogo
      • Akashi, Hyogo, Japan, 673-8558
        • Hyogo Cancer Center
      • Amagasaki, Hyogo, Japan, 660-8511
        • Kansai Rosai Hospital
      • Kobe, Hyogo, Japan, 650-0047
        • Kobe City Medical Center General Hospital
    • Ibaraki
      • Kasama, Ibaraki, Japan, 309-1793
        • Ibaraki Prefectural Central Hospital
    • Ishikawa
      • Kanazawa, Ishikawa, Japan, 920-8641
        • Kanazawa University Hospital
    • Iwate
      • Shiwa-gun, Iwate, Japan, 028-3695
        • Iwate Medical University Hospital
    • Kagawa
      • Kita, Kagawa, Japan, 761-0793
        • Kagawa University Hospital
    • Kanagawa
      • Kawasaki, Kanagawa, Japan, 216-8511
        • St. Marianna University School of Medicine Hospital
      • Sagamihara, Kanagawa, Japan, 252-0375
        • The Kitasato Institute Kitasato University Hospital
      • Yokohama, Kanagawa, Japan, 232-0024
        • Yokohama City University Medical Center
      • Yokohama, Kanagawa, Japan, 241-8515
        • Kanagawa cancer center
    • Kyoto
      • Kamigyō-ku, Kyoto, Japan, 602-8026
        • Japanese Red Cross Kyoto Daini Hospital
    • Miyagi
      • Natori, Miyagi, Japan, 981-1293
        • Miyagi Cancer Center
      • Osaki, Miyagi, Japan, 989-6183
        • Osaki Citizen Hospital
    • Osaka
      • Suita, Osaka, Japan, 565-0871
        • Osaka University Hospital
      • Toyonaka, Osaka, Japan, 560-8565
        • Toyonaka Municipal Hospital
    • Tochigi
      • Utsunomiya, Tochigi, Japan, 320-0834
        • Tochigi Cancer Center
    • Tokyo
      • Bunkyō-Ku, Tokyo, Japan, 113-8677
        • Tokyo Metropolitan Komagome Hospital
      • Chuo Ku, Tokyo, Japan, 104-0045
        • National Cancer Center Hospital
      • Koto-Ku, Tokyo, Japan, 135-8550
        • The Cancer Institute Hospital of Japanese Foundation for Cancer Research
      • Koto-Ku, Tokyo, Japan, 135-8577
        • Showa University Koto Toyosu Hospital
      • Minato-Ku, Tokyo, Japan, 105-8470
        • Toranomon Hospital
  • Korea, Republic of
      • Busan, Korea, Republic of, 48108
        • Inje University Haeundae Paik Hospital
      • Busan, Korea, Republic of, 49201
        • Dong-A University Hospital
      • Daegu, Korea, Republic of, 41404
        • Kyungpook National University Chilgok Hospital
      • Gwangju, Korea, Republic of, 58128
        • Chonnam National University Hwasun Hospital
      • Incheon, Korea, Republic of, 21565
        • Gachon University Gil Medical Center
      • Jeonju, Korea, Republic of, 54907
        • Chonbuk National University Hospital
      • Seongnam, Korea, Republic of, 13620
        • Seoul National University Bundang Hospital
      • Seoul, Korea, Republic of, 03080
        • Seoul National University Hospital
      • Seoul, Korea, Republic of, 05505
        • Asan Medical Center
      • Seoul, Korea, Republic of, 02841
        • Korea University Anam Hospital
      • Seoul, Korea, Republic of, 06591
        • The Catholic University of Korea, Seoul St. Mary's Hospital
      • Seoul, Korea, Republic of, 06973
        • Chung-Ang University Hospital
      • Seoul, Korea, Republic of, 08308
        • Korea University Guro Hospital
      • Seoul, Korea, Republic of, 06351
        • Samsung Medical Center
      • Seoul, Korea, Republic of, 06273
        • Gangnam Severance Hospital
      • Seoul, Korea, Republic of, 03722
        • Yonsei Cancer Center, Severance Hospital, Yonsei University Health System
    • Chungcheongbuk-do
      • Cheongju-si, Chungcheongbuk-do, Korea, Republic of, 28644
        • Chungbuk National University Hospital
    • Gyeonggi-do
      • Ilsan, Gyeonggi-do, Korea, Republic of, 10408
        • National Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Has a pathologically documented locally advanced or metastatic adenocarcinoma of gastric or gastroesophageal junction
  2. Progression on and after at least 2 prior regimens
  3. Has an adequate tumor sample
  4. Has measurable disease based on Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1

Exclusion Criteria:

  1. Has a medical history of myocardial infarction, symptomatic congestive heart failure (CHF) (NYHA classes II-IV), unstable angina or serious cardiac arrhythmia
  2. Has a QTc prolongation to > 450 millisecond (ms) in males and > 470 ms in females
  3. Has a medical history of clinically significant lung disease
  4. Is suspected to have certain other protocol-defined diseases based on imaging at screening period

  5. Has history of any disease, metastatic condition, drug/medication use or other condition that might, per protocol or in the opinion of the investigator, compromise:

    1. safety or well-being of the participant or offspring
    2. safety of study staff
    3. analysis of results

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Parallel: DS-8201a
Participants with HER2-overexpressing (IHC 3+ or IHC 2+/ISH+) advanced gastric or gastroesophageal junction adenocarcinoma, whose disease has progressed on two prior regimens, will receive DS-8201a once every 3 weeks.
Drug: DS-8201a
DS-8201a is comprised of an antibody component conjoined to a drug component in a lyophilized powder, which is made into solution for intravenous administration.
Other Names:
  • Experimental product
Active Comparator: Parallel: Physician's Choice
Participants with HER2-overexpressing (IHC 3+ or IHC 2+/ISH+) advanced gastric or gastroesophageal junction adenocarcinoma, whose disease has progressed on two prior regimens, will receive monotherapy prescribed by the physician before enrollment.
Drug: Physician's Choice

Either:

Irinotecan monotherapy (Starting dosage and usage is 150 mg/m2 biweekly, with dose reduction permitted)

Paclitaxel monotherapy (Starting dosage and usage is 80 mg/m2 weekly, with dose reduction permitted)

Other Names:
  • Standard of Care
Other: Exploratory: Naïve HER2 IHC 2+/ISH-
A maximum of 20 non-randomized participants with HER2 IHC 2+/ISH- advanced gastric or gastroesophageal junction adenocarcinoma will receive DS-8201a once every three weeks.
Drug: DS-8201a
DS-8201a is comprised of an antibody component conjoined to a drug component in a lyophilized powder, which is made into solution for intravenous administration.
Other Names:
  • Experimental product
Other: Exploratory: Naïve HER2 IHC 1+
A maximum of 20 non-randomized patients with HER2 IHC 1+ advanced gastric or gastroesophageal junction adenocarcinoma will receive DS-8201a once every 3 weeks.
Drug: DS-8201a
DS-8201a is comprised of an antibody component conjoined to a drug component in a lyophilized powder, which is made into solution for intravenous administration.
Other Names:
  • Experimental product

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Objective Response Rate Based on Independent Central Review Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Intent-to-Treat Analysis Set)
Time Frame: Baseline to date of first documented objective response (CR or PR), up to 36 months postdose
The Objective Response Rate (ORR) is the percentage of participants who achieved a best overall response of Complete Response (CR) or Partial Response (PR), assessed by independent central imaging review (ICR) based on 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. Unconfirmed ORR (not confirmed by ICR) and confirmed ORR (confirmed by ICR) are reported.
Baseline to date of first documented objective response (CR or PR), up to 36 months postdose
Percentage of Participants With Best Overall Response Based on Independent Central Review Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Intent-to-Treat Analysis Set)
Time Frame: Baseline to date of first documented objective response, up to 36 months postdose
The best overall response is the best overall response (BOR) recorded from the start of the study treatment until the end of treatment and includes complete response (CR), partial response (PR), stable disease (SD), progressive disease (PD) and not evaluable (NE) as assessed by independent central imaging review (ICR) based on 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 progressive disease (PD; at least a 20% increase in the sum of diameters of target lesions. Unconfirmed BOR (not confirmed by ICR) and confirmed BOR (confirmed by ICR) are reported.
Baseline to date of first documented objective response, up to 36 months postdose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Overall Survival Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Intent-to-Treat Analysis Set)
Time Frame: From the date of randomization to the date of death (due to any cause), up to 36 months postdose
Duration of survival follow-up (months) was defined as the date of last contact - date of randomization/ registration + 1.Overall Survival (OS) was defined as the time from the date of randomization (the date of the registration for the Exploratory Cohorts) to the date of death due to any cause.
From the date of randomization to the date of death (due to any cause), up to 36 months postdose
Progression-Free Survival Based on Independent Central Review Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Intent-to-Treat Analysis Set)
Time Frame: From the date of randomization to the first documented disease progression or date of death (whichever occurs first), up to 36 months postdose
Progression-free survival (PFS) was defined as the time from the date of randomization (the date of the registration for the Exploratory Cohorts) to the earliest date of the first objective documentation of progressive disease (PD) or death due to any cause. PD was defined as at least a 20% increase in the sum of diameters of target lesions.
From the date of randomization to the first documented disease progression or date of death (whichever occurs first), up to 36 months postdose
Duration of Response Based on Independent Central Review Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Full Analysis Set)
Time Frame: From the date of first objective response (CR or PR) to the date of first documentation of PD or death (whichever occurs first), up to 36 months postdose
Duration of Response (DOR) was defined as the time from the date of the first documentation of objective response (complete response [CR] or partial response [PR]) to the date of the first objective documentation of progressive disease (PD) or death due to any cause. DoR was measured for responding subjects (PR or CR) only.
From the date of first objective response (CR or PR) to the date of first documentation of PD or death (whichever occurs first), up to 36 months postdose
Disease Control Rate With and Without Confirmation by Independent Central Review Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Intent-to-Treat Analysis Set)
Time Frame: Baseline to date of first documented objective response (CR, PR, and SD), up to 36 months postdose
Disease control rate (DCR) was defined as the sum of complete response (CR) rate, partial response (PR) rate, and stable disease (SD) rate. As per RECIST v1.1, 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 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.
Baseline to date of first documented objective response (CR, PR, and SD), up to 36 months postdose
Objective Response Rate and Best Overall Response Based on Independent Central Review Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Intent-to-Treat Analysis Set)
Time Frame: From randomization to first documented objective response, up to 36 months postdose
The Objective Response Rate (ORR) is the percentage of participants who achieved a best overall response of Complete Response (CR) or Partial Response (PR), assessed by Independent Central Review (ICR) based on RECIST version 1.1. The best overall response is the best overall response (BOR) recorded from the start of the study treatment until the end of treatment and includes CR, PR, stable disease (SD), progressive disease (PD) and not evaluable (NE) as assessed by Investigator based on 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 (at least a 20% increase in the sum of diameters of target lesions). Confirmed ORR and BOR (confirmed by ICR) are reported.
From randomization to first documented objective response, up to 36 months postdose
Time to Treatment Failure Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Full Analysis Set)
Time Frame: From date of randomization to first documentation of PD, death due to any cause, or treatment discontinuation (whichever comes first), up to 36 months postdose
Time to treatment failure (TTF) was defined as the time from the date of randomization (the date of the registration for Exploratory Cohorts) to the earliest date of the first objective documentation of progressive disease (PD), death due to any cause, or treatment discontinuation.
From date of randomization to first documentation of PD, death due to any cause, or treatment discontinuation (whichever comes first), up to 36 months postdose
Objective Response Rate and Best Overall Response Based on Investigator Assessment Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Response Evaluable Set)
Time Frame: From randomization to first documented objective response, up to 36 months postdose
The Objective Response Rate (ORR) is the percentage of participants who achieved a best overall response of Complete Response (CR) or Partial Response (PR), assessed by Investigator based on RECIST version 1.1. The best overall response is the best overall response (BOR) recorded from the start of the study treatment until the end of treatment and includes CR, PR, stable disease (SD), progressive disease (PD) and not evaluable (NE) as assessed by Investigator based on 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 (at least a 20% increase in the sum of diameters of target lesions). Unconfirmed ORR and BOR (not confirmed by Investigator) and confirmed ORR and BOR (confirmed by Investigator) are reported.
From randomization to first documented objective response, up to 36 months postdose
Pharmacokinetic Parameter of Maximum Observed Serum Concentration (Cmax) and Trough Serum Concentration (Ctrough) of DS-8201a and Total Anti-HER2 Antibody Following Treatment With DS-8201a
Time Frame: Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Blood samples for DS-8201a pharmacokinetic (PK) analysis were obtained at the specified timepoints. The maximum serum concentration (Cmax) and the trough serum concentration (Ctrough) of DS-8201a were assessed. These serum PK parameters for DS-8201a and total anti-HER2 antibody were estimated in each participant using standard noncompartmental methods.
Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Pharmacokinetic Parameter of Maximum Observed Serum Concentration (Cmax) and Trough Serum Concentration (Ctrough) of MAAA-1181 Following Treatment With DS-8201a
Time Frame: Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Blood samples for DS-8201a pharmacokinetic (PK) analysis were obtained at the specified timepoints. The maximum serum concentration (Cmax) and the trough serum concentration (Ctrough) of DS-8201a were assessed. These serum PK parameters for MAAA-1181a were estimated in each participant using standard noncompartmental methods.
Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Pharmacokinetic Parameters of Area Under the Concentration Versus-Time Curve of DS-8201a and Total Anti-HER2 Antibody Following Treatment With DS-8201a
Time Frame: Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Blood samples for DS-8201a pharmacokinetic (PK) analysis were obtained at the specified timepoints. Area under the concentration versus time curve (AUC) from Time 0 to the Last Quantifiable Concentration (AUClast) and Area Under the Concentration versus-Time Curve up to 21 days (AUC21d) are reported. These serum PK parameters for DS-8201a and total anti-HER2 antibody were estimated in each participant using standard noncompartmental methods.
Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Pharmacokinetic Parameters of Area Under the Concentration Versus-Time Curve of MAAA-1181 Following Treatment With DS-8201a
Time Frame: Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Blood samples for DS-8201a pharmacokinetic (PK) analysis were obtained at the specified timepoints. Area under the concentration versus time curve (AUC) from Time 0 to the Last Quantifiable Concentration (AUClast) and Area Under the Concentration versus-Time Curve up to 21 days (AUC21d) are reported. These serum PK parameters for MAAA-1181a were estimated in each participant using standard noncompartmental methods.
Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Pharmacokinetic Parameter of Time to Maximum Serum Concentration (Tmax) of DS-8201a, Total Anti-HER2 Antibody and MAAA-1181 Following Treatment With DS-8201a
Time Frame: Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Blood samples for DS-8201a pharmacokinetic (PK) analysis were obtained at the specified timepoints. The time to maximum serum concentration (Tmax) of DS-8201a was assessed. This serum PK parameter for DS-8201a, total anti-HER2 antibody, and MAAA-1181a were estimated in each participant using standard noncompartmental methods.
Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Pharmacokinetic Parameter Terminal Elimination Half-life (t1/2) of DS-8201a, Total Anti-HER2 Antibody and MAAA-1181 Following Treatment With DS-8201a
Time Frame: Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Blood samples for DS-8201a pharmacokinetic (PK) analysis were obtained at the specified timepoints. Terminal elimination half-life (t1/2) of DS-8201a was assessed. This serum PK parameter for DS-8201a, total anti-HER2 antibody, and MAAA-1181a were estimated in each participant using standard noncompartmental methods.
Cycle 1 and 3, Day 1: predose, 4 hours (h), 7h postdose; Day 8, Day 15, and Day 22 postdose; Cycle 2, Day 1 and Day 22 postdose; Cycle 4, 6, and 8, Day 1 postdose (each cycle is 21 days)
Overall Summary of Treatment-emergent Adverse Events (TEAEs) Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma. (Safety Analysis Set)
Time Frame: Baseline up to 47 days after last dose, up to 36 months postdose
A treatment-emergent adverse event (TEAE) is defined as an adverse event that occurs, having been absent before the first dose of study drug, or has worsened in severity or seriousness after the initiating the study drug until 47 days after last dose of the study drug. Serious adverse events (SAEs) with an onset or worsening 48 days or more after the last dose of study drug, if considered related to the study treatment, are also TEAEs.
Baseline up to 47 days after last dose, up to 36 months postdose
Summary of Most Common Treatment-Emergent Adverse Events (TEAEs) ≥20% of Any Grade by Preferred Term Following Treatment With DS-8201a in Participants With HER2-Expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (Safety Analysis Set)
Time Frame: Baseline up to 47 days after last dose, up to 36 months postdose
A treatment-emergent adverse event (TEAE) is defined as an adverse event that occurs, having been absent before the first dose of study drug, or has worsened in severity or seriousness after the initiating the study drug until 47 days after last dose of the study drug.
Baseline up to 47 days after last dose, up to 36 months postdose

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Daiichi Sankyo Co., Ltd.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
AstraZeneca

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 2, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 8, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 11, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 30, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 30, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 6, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 18, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 17, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • DS8201-A-J202
  • 173727 (Registry Identifier: JAPIC CTI)
  • DESTINY-G01 (Other Identifier: Daiichi Sankyo and AstraZeneca)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/

IPD Sharing Time Frame

Studies for which the medicine and indication have received European Union (EU) and United States (US), and/or Japan (JP) marketing approval on or after 01 January 2014 or by the US or EU or JP Health Authorities when regulatory submissions in all regions are not planned and after the primary study results have been accepted for publication.

IPD Sharing Access Criteria

Formal request from qualified scientific and medical researchers on IPD and clinical study documents from clinical trials supporting products submitted and licensed in the United States, the European Union and/or Japan from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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