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DS-8201a/kg Q3W

Phase 2

Advanced Colorectal Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Jan 14, 2026

Target and mechanism

ModalitySmall molecule

Also known as DS-8201a

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDBiomarker
Total Trials1
Total Enrollment122

FDA Designations

No designations recorded

Clinical trial landscape

DS-8201a/kg Q3W · 1 trial · 1 indication

Phase 2 1
NCT04744831Trastuzumab Deruxtecan in Participants With HER2-overexpressing Advanced or Metastatic Colorectal CancerAdvanced Colorectal Cancer
COMPLETED122 Analytics
PHASE2COMPLETED
Trastuzumab Deruxtecan in Participants With HER2-overexpressing Advanced or Metastatic Colorectal Cancer
Advanced Colorectal CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Objective Response Rate (ORR) Based on Blinded Independent Central Review Following IV Administration of T-DXd in Participants With Human Epidermal Growth Factor Receptor 2-overexpressing Metastatic Colorectal Cancer
6 months post-dose administration to data cut off, up to 20 months

Confirmed objective response rate (ORR), defined as the number (percentage) of participants with complete response (CR) or partial response (PR), were assessed by blinded independent central review (BICR) based on Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1. CR was defined as the disappearance of all target lesions and PR was defined as at least a 30% decrease in the sum of diameters of target lesions.

Secondary Endpoints

Confirmed Objective Response Rate by Investigator Following Intravenous Administration of T-DXd in Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Overexpressing Metastatic Colorectal Cancer
From first dose administration to data cut off, up to approximately 19 months
Duration of Response Following Intravenous Administration of T-DXd in Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Overexpressing Metastatic Colorectal Cancer
From the first documented evidence of a response (complete or partial) until disease progression or death, up to approximately 19 months.
Disease Control Rate Following Intravenous Administration of T-DXd in Participants With Human Epidermal Growth Factor Receptor 2 (HER2) -Overexpressing Metastatic Colorectal Cancer
From first dose administration to data cut off, up to approximately 19 months.
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
T-DXd 5.4 mg/kg Q3WEXPERIMENTALParticipants will be randomized to receive intravenous T-DXd administered at a dose of 5.4 mg/kg every 3 weeks (Q3W).
T-DXd 6.4 mg/kg Q3WEXPERIMENTALParticipants will be randomized to receive intravenous T-DXd administered at a dose of 6.4 mg/kg every 3 weeks (Q3W).

Interventions

NameTypeDescription
DS-8201a 5.4 mg/kg Q3WDRUGDS-8201a for injection will be administered intravenously (IV) at a dose of 5.4 mg/kg every 3 weeks (Q3W)
DS-8201a 6.4 mg/kg Q3WDRUGDS-8201a for injection will be administered intravenously (IV) at a dose of 6.4 mg/kg every 3 weeks (Q3W)
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites63

KEY Inclusion Criteria: Participants must meet all of the following criteria to be eligible for randomization/registration into the study: 1. Adults aged ≥20 years in Japan, Taiwan, and Korea, or those aged ≥18 years in other countries, at the time the Informed Consent Forms (ICFs) are signed. 2. ...

Countries:United StatesAustraliaBelgiumFranceItalyJapanSouth KoreaSpainTaiwanUnited Kingdom
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Competitive Landscape -Colorectal Cancer 258 trials (matched to "Advanced Colorectal Cancer")

Frequently asked questions about DS-8201a/kg Q3W

What is DS-8201a used for?

DS-8201a is an investigational oncology drug being studied for colorectal neoplasms, advanced colorectal cancer, advanced solid tumors, and HER2-positive primary breast cancer. It is a small molecule in clinical development for these cancer indications.

Who makes DS-8201a?

DS-8201a is being developed by AstraZeneca PLC, which trades under the ticker AZN. The company is conducting clinical trials to evaluate the drug's safety and efficacy in various cancer types.

What phase is DS-8201a in?

DS-8201a is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still undergoing clinical trials to assess its safety and effectiveness.

What clinical trials is DS-8201a in?

DS-8201a has been studied in several clinical trials, including NCT02564900 for advanced solid tumors, NCT03384940 for HER2-expressing colorectal cancer, NCT04622319 for HER2-positive breast cancer, and NCT04744831 for advanced colorectal cancer.

Is DS-8201a the same as trastuzumab deruxtecan?

DS-8201a is also known as trastuzumab deruxtecan (T-DXd). Clinical trials such as NCT04622319 and NCT04744831 refer to the drug by this alternative name, confirming that DS-8201a and trastuzumab deruxtecan are the same compound.

What is the enrollment for DS-8201a clinical trials?

DS-8201a clinical trials have enrolled a total of 1,600 participants across multiple studies. The largest trial, NCT04622319, has an enrollment of 1,600 participants, while other trials have smaller cohorts ranging from 86 to 292 participants.