Sacituzumab Tirumotecan Plus Tagitanlimab in Previously Treated Locally Advanced or Metastatic Triple Negative Breast Cancer

Trial statusNot yet recruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorTianjin Medical University Cancer Institute and Hospital

About this trial

This is an open-label, single-arm, multicenter phase II study to evaluate the safety and efficacy of sac-TMT plus Tagitanlimab in patients with PD-L1-positive locally advanced or metastatic TNBC.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥ 18 years at the time of signing informed consent.

Definition of human epidermal growth factor receptor 2 (HER2) negative: immunohistochemistry (IHC) of 0 or 1+; if HER2 is 2+ by IHC, negative HER2 expression must be confirmed by fluorescencein situ hybridization (FISH); Estrogen and progesterone receptor negative means that less than 1% of the cells express hormone receptors as indicated by IHC.

Tumor stage: locally advanced, recurrent, or metastatic TNBC; locally advanced cases must be confirmed by the investigator as unsuitable for curative surgical resection.

Those who have received chemotherapy combined with a PD-(L)1 inhibitor as first-line treatment for locally advanced or metastatic disease and experienced progression ≥ 3 months later.

Disqualifiers

Targeted TROP2 therapy.

Any drug treatment targeting topoisomerase I, including antibody drug conjugates (ADC) therapy.

Known to have meningeal metastasis, brainstem metastasis, spinalcord metastasis, and/or compression, active central nervous system(CNS) metastasis. Patients with previously treated brain metastases canparticipate if clinically stable for at least 4 weeks before dosing and do not require corticosteroids or anticonvulsants for at least 14 days. Patients with untreated asymptomatic brain metastases must require investigator approval.

Has a history of documented severe dry eye syndrome, severe Meibomian gland disease and/or blepharitis, or corneal disease that prevents/delays corneal healing.

Trial design

Design model

Single group

Treatments tested in this trial

  • Sacituzumab Tirumotecan plus Tagitanlimab

    Drug

    Sacituzumab Tirumotecan 5mg/kg intravenously (IV) infusion every 2 weeks on Day 1, Tagitanlimab 900mg IV every 2 weeks on Day 1, until disease progression, unacceptable toxic effects, withdrawal from the trial, or death, whichever occurred first.

Treatment groups

47 Participants
are divided into 1 treatment group
Group A: sac-TMT plus TagitanlimabExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Objective Response Rate (ORR) as Assessed by Investigator per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)

ORR is defined as the proportion of participants who achieve a complete response (CR) or partial response (PR) that is confirmed at least 4 weeks after initial documentation of response.

Time frame
up to approximately 60 months

Secondary outcomes

1

Progression Free Survival (PFS) as Assessed by Investigator per RECIST Version 1.1

PFS is defined as time from date of randomization until the date of first objective progressive disease (PD) by investigator assessment according to RECIST v1.1 or death from any cause, whichever comes first.

Time frame
up to approximately 60 months
2

Overall Survival (OS)

OS is defined as the time from randomization until the date of death from any cause.

Time frame
up to approximately 60 months
3

Disease control response (DCR) as Assessed by Investigator per RECIST Version 1.1

DCR is defined as the proportion of participants who achieve a complete response (CR), partial response (PR) or or stable disease (SD) .

Time frame
up to approximately 60 months
4

Duration of response (DoR)

DoR is defined as the time from the first objective response (CR/PR) to the first documented disease progression (PD) according to RECIST v1.1 or death from any cause, whichever comes first.

Time frame
up to approximately 60 months

Other outcomes

1

TROP2, PD-L1, tumor-infiltrating lymphocytes (TILs), lymphocyte subpopulation

Explore potential biomarkers that predict the treatment response and prognosis of TNBC, including but not limited to the expression levels of TROP2, PD-L1, tumor-infiltrating lymphocytes (TILs), lymphocyte subpopulation.

Time frame
up to approximately 60 months

Sponsors and contacts

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This trial is not recruiting at the moment. You can still explore other options: