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Antibody-Drug Conjugate

Dato-DXd for Breast Cancer (TB-01 Trial)

Phase 3
Waitlist Available
Research Sponsored by AstraZeneca
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Adequate organ and bone marrow function within 7 days before day of first dosing as follows: Hemoglobin: ≥ 9.0 g/L, Absolute neutrophil count: 1500/mm3, Platelet count: 100000/mm3, Total bilirubin: ≤ 1.5 × ULN if no liver metastases; or ≤ 3 × ULN in the presence of documented Gilbert's syndrome (unconjugated hyperbilirubinemia) or liver metastases at baseline, ALT and AST: ≤ 3 × ULN for AST/ALT; however, if elevation is due to liver metastases, ≤ 5.0 × ULN is allowed, Calculated creatinine clearance: ≥ 30 mL/min as calculated using the Cockcroft-Gault equation (using actual body weight), LVEF ≥ 50% by either an echocardiogram or MUGA within 28 days of first dosing
At least 1 measurable lesion not previously irradiated that qualifies as a RECIST 1.1. Note: Participants with bone-only metastases are not permitted
Timeline
Screening 3 weeks
Treatment Varies
Follow Up from randomization to event up to 21 months; from date of first response until progression or death up to 20 months
Awards & highlights

TB-01 Trial Summary

This trial will compare the safety and effectiveness of Dato-DXd with standard chemotherapy for people with inoperable or metastatic breast cancer that is HR-positive and HER2-negative.

Who is the study for?
Adults with inoperable or metastatic HR-positive, HER2-negative breast cancer who have tried 1-2 chemotherapy lines and aren't suitable for endocrine therapy. They must be well enough (ECOG PS of 0 or 1), have adequate organ function, no severe heart conditions, controlled blood pressure, and not pregnant. Participants need a measurable lesion that's RECIST 1.1 compliant and can't have active brain metastases requiring steroids.Check my eligibility
What is being tested?
The trial is testing Dato-DXd against standard single-agent chemotherapies like eribulin, capecitabine, vinorelbine, or gemcitabine in patients with certain advanced breast cancers. It aims to see if Dato-DXd is safer or more effective compared to these existing treatments.See study design
What are the potential side effects?
Possible side effects include reactions at the infusion site, fatigue, nausea, low blood cell counts increasing infection risk; potential liver enzyme changes; hair loss may occur due to chemotherapy agents.

TB-01 Trial Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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My blood, liver, kidney, and heart functions meet the trial's requirements.
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I have a tumor that can be measured and hasn't been treated with radiation.
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I've had 1-2 chemotherapy treatments for my inoperable/metastatic cancer and it's still progressing.
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My breast cancer cannot be removed by surgery and is HR+ and HER2-.
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I am 18 years old or older.
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I am 18 years old or older.
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I am using birth control approved by this study's guidelines, not including oral estrogens.

TB-01 Trial Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~from randomization to event up to 21 months; from date of first response until progression or death up to 20 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and from randomization to event up to 21 months; from date of first response until progression or death up to 20 months for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Overall Survival
Progression Free Survival
Secondary outcome measures
Clinical Outcome Assessment- TTD in GHS
Clinical Outcome Assessment- TTD in pain
Clinical Outcome Assessment- TTD in physical Functioning
+9 more

TB-01 Trial Design

2Treatment groups
Experimental Treatment
Active Control
Group I: Dato-DXdExperimental Treatment1 Intervention
Arm 1: Dato-DXd
Group II: Investigators Choice of Chemotherapy (ICC)Active Control4 Interventions
Arm 2: ICC Capecitabine Gemcitabine Eribulin mesylate Vinorelbine

Find a Location

Who is running the clinical trial?

Daiichi SankyoIndustry Sponsor
392 Previous Clinical Trials
410,633 Total Patients Enrolled
25 Trials studying Breast Cancer
16,895 Patients Enrolled for Breast Cancer
AstraZenecaLead Sponsor
4,259 Previous Clinical Trials
288,593,170 Total Patients Enrolled
173 Trials studying Breast Cancer
1,245,607 Patients Enrolled for Breast Cancer
Daiichi Sankyo, Inc.Industry Sponsor
389 Previous Clinical Trials
414,565 Total Patients Enrolled
27 Trials studying Breast Cancer
18,870 Patients Enrolled for Breast Cancer

Media Library

Dato-DXd (Antibody-Drug Conjugate) Clinical Trial Eligibility Overview. Trial Name: NCT05104866 — Phase 3
Breast Cancer Research Study Groups: Dato-DXd, Investigators Choice of Chemotherapy (ICC)
Breast Cancer Clinical Trial 2023: Dato-DXd Highlights & Side Effects. Trial Name: NCT05104866 — Phase 3
Dato-DXd (Antibody-Drug Conjugate) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05104866 — Phase 3

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What is the government's official stance on Dato-DXd?

"Dato-DXd's safety is not in question and it thus received a score of 3."

Answered by AI

How many research centers are conducting this experiment?

"If you are interesting in taking part of this trial, know that it is currently being conducted at 25 different centres. These locations include cities such as Palo Alto, Commack and Los Angeles. It would be ideal to select a location nearest to you to reduce the hassle of travel."

Answered by AI

For what medical conditions is Dato-DXd commonly prescribed?

"Dato-DXd is an effective treatment for patients that have undergone adjuvant anthracycline-containing therapy, as well as those with soft tissue sarcoma and colorectal carcinoma."

Answered by AI

What goals does this research aim to achieve?

"According to the study sponsor, AstraZeneca, the primary outcome of this clinical trial will be Overall Survival, which will be measured over a period of 21 months. Additionally, the trial will assess secondary outcomes including Disease Control Rate (DCR), Objective Response Rate (ORR), and Immunogenicity."

Answered by AI

Are new participants still being recruited for this experiment?

"That is correct. The clinical trial in question, which was first posted on October 18th 2021, appears to be actively recruiting participants according to the data available on clinicaltrials.gov. This particular study is looking for 700 patients across 25 different sites."

Answered by AI

What other investigations have included Dato-DXd in their analysis?

"There are 847 distinct clinical trials being conducted worldwide to study the efficacy of Dato-DXd. Out of those, 261 have reached Phase 3. Many of these studies take place in Guangzhou, Guangdong; however, there are a total of 37085 different locations running Dato-DXd trials."

Answered by AI

How many test subjects are required for this clinical trial?

"That is accurate. The online clinicaltrials.gov registry shows that this trial, which was first advertised on October 18th 2021, is looking for 700 more participants across 25 sites."

Answered by AI

Who else is applying?

What state do they live in?
Tennessee
California
How old are they?
65+
What site did they apply to?
Research Site
What portion of applicants met pre-screening criteria?
Did not meet criteria
Met criteria
~244 spots leftby Aug 2025