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Trial · NCT06263543

Sequencing Antibody Drug Conjugates in ER+/HER2 LOW/ULTRA LOW MBC

NCT06263543, Phase 2, Recruiting, Reshma L. Mahtani, D.O.

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Sequencing Antibody Drug Conjugates in ER+/HER2 LOW/ULTRA LOW MBC. Trials, record NCT06263543. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT06263543

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Sequencing Antibody Drug Conjugates in ER+/HER2 LOW/ULTRA LOW MBC
NCT number
NCT06263543
Status
Recruiting
Phases
Phase 2
Enrollment
75 participants, estimated
Lead sponsor
Reshma L. Mahtani, D.O.
Conditions
Breast Cancer, Metastatic Breast Cancer, Advanced Breast Cancer, Hormone-receptor-positive Breast Cancer, Human Epidermal Growth Factor 2 Low Breast Cancer
Interventions
Sacituzumab govitecan
First posted
2024-02-16
Last updated
2026-08-12

Source ClinicalTrials.gov

Registered outcomes9

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryOverall response rate (ORR)24 months
ORR will be assessed using Response Evaluation Criteria in Solid Tumours version 1.1 (RECIST 1.1). ORR is defined as the percentage of participants who received at least one dose of SG and have achieved a complete response (CR) or partial response (PR) as assessed by the local investigator.
SecondaryClinical benefit rate (CBR)24 months
CBR will be assessed using RECIST 1.1 and is defined as the percentage of participants who received at least one dose of SG and have achieved CR, PR, or stable disease (SD) as assessed by the local investigator.
SecondaryProgression-free survival (PFS)30 monthsPFS is defined as the duration of time from the date of first treatment until the date of the first radiological progressive disease (PD) per RECIST 1.1 or death from any cause, whichever comes first.
SecondaryOverall survival (OS)30 monthsOS is defined as the duration of time of first treatment until the date of death from any cause.
SecondaryDuration of response (DOR)30 monthsDOR is defined as the duration of time from the date of first response (CR or PR) until the date of the first radiological PD per RECIST 1.1 or death from any cause, whichever comes first.
SecondaryGlobal Quality of Life24 months
Global Quality of Life is measured by European Organisation for Research and Treatment of Cancer Core Questionnaire (EORTC QLQ-C30), a 30-item instrument designed to measure quality of life in individuals with cancer. The items are related to how difficult activities of daily living are, how often treatment or cancer-related symptoms occur and how much they interfere in daily activities and relationships. Each item is scored on a scale of 1 (not at all) to 4 (very much). Higher scores indicate worse quality of life.
SecondaryTreatment-related Adverse Events (AEs) and Serious Adverse Events (SAEs)30 monthsPercent of participants who experienced a treatment-related AE or SAE while on study.
SecondaryLaboratory and Vital Sign Abnormalities30 monthsPercent of participants who experienced a laboratory or vital sign abnormality that was considered clinically significant by the investigator while on study.
SecondaryGrowth Factor Support30 monthsPercent of participants who required the use of growth factor support (administered at the discretion of the investigator) while on study.

Outcomes0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

None in this release.

Results by group0

Each measurement the trial posted, group by group, in the words and numbers it posted.

None in this release.

Participant flow0

How many started, completed or left each group, period by period.

None in this release.

Adverse events0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

None in this release.

Adverse event totals0

The totals the trial posted for each group.

None in this release.

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
32223649BACKGROUND

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT06263543

GET https://conductscience.org/api/trials/v1/NCT06263543/registered