261TiP TROPION-Breast05: Phase (Ph) III study of datopotamab deruxtecan (Dato-DXd) ± durvalumab (D) vs chemotherapy (CT) + pembrolizumab (pembro) in patients (pts) with PD-L1+ locally recurrent inoperable or metastatic triple-negative breast cancer (TNBC)
Bibliographic record
Abstract
Standard of care for pts with metastatic PD-L1+ (Combined Positive Score [CPS] ≥10) TNBC is pembro + CT, but prognosis remains poor. Dato-DXd comprises a humanised, anti-TROP2 IgG1 mAb conjugated to a potent topoisomerase I (Topo-I) inhibitor via a plasma-stable, tetrapeptide-based, tumour-selective cleavable linker. D is a high-affinity, human IgG1 mAb that blocks interaction of PD-L1 with PD-1 and CD80 by binding to PD-L1. In the Ph1 TROPION-PanTumor01 study, Dato-DXd demonstrated a manageable safety profile and encouraging efficacy in heavily pretreated metastatic TNBC. In the PhIb/2 BEGONIA study, Dato-DXd + D showed durable responses in unresectable advanced TNBC. TROPION-Breast05 (NCT06103864) will evaluate Dato-DXd ± D vs investigator’s choice of CT (ICC) + pembro in PD-L1+ locally recurrent inoperable or metastatic TNBC. The Ph3, randomized, open-label, 3-arm, multicentre TROPION-Breast05 study will randomise ∼625 pts (≥18 years) with histologically/cytologically documented, locally recurrent inoperable or metastatic PD-L1+ (CPS ≥10) TNBC not previously treated with CT or targeted systemic anticancer therapy. Pts with active brain metastases, or prior exposure to Topo-I ADC or TROP2-targeted therapy will be excluded. Pts will be randomised 1:1 to Arm 1 (Dato-DXd 6 mg/kg IV every 3 weeks [Q3W] + D 1120 mg IV Q3W) or Arm 2 (ICC [paclitaxel, nab-paclitaxel, or gemcitabine + carboplatin] + pembro), or in selected countries, 1:1:1 to Arms 1, 2, or 3 (Dato-DXd alone). Once ∼75 pts have been randomised to Arm 3, it will close and all countries will continue with 1:1 randomisation. Primary endpoint: progression-free survival (PFS) by blinded independent central review per RECIST v1.1. Secondary endpoints: overall survival, objective response rate, duration of response, investigator-assessed PFS, PFS2, clinical benefit rate at 24 weeks, patient-reported outcomes, pharmacokinetics, immunogenicity, safety. Enrolment is planned in 20 countries/regions; recruitment is active in the UK, South Korea and Taiwan at the time of abstract submission. NCT06103864. Medical writing support for the development of this abstract, under the direction of the authors, was provided by Helen Kitchen of Ashfield MedComms (Macclesfield, UK), an Inizio company. AstraZeneca PLC in collaboration with Daiichi Sankyo. Pharmaceutical, biotech, or other commercial company; AstraZeneca PLC in collaboration with Daiichi Sankyo.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.008 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".