Phase II Lenvatinib and Pembrolizumab in Endocrine Resistant Breast Cancer With Letrozole

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About the trial

This is a phase II study testing the combination of Pembrolizumab with Lenvatinib, a multi-kinase inhibitor that has activity against vascular endothelial growth factor receptors 1-3 (VEGFR1-3), fibroblast growth factor receptors 1-4 (FGFR1-4), ret protooncogene (RET), platelet-derived growth factor receptor-alpha (PDGFR-alpha) and KIT (a stem cell factor receptor), and letrozole, a non-steroidal aromatase inhibitor, in advanced hormone receptor (HR) positive human epidermal growth factor receptor 2 (HER2) negative breast cancer (BC) that has progressed on/after standard endocrine therapy.

Original English text from ClinicalTrials.gov

Who can (and can't) join

✓ Qualifies

  • •Kobiety i mężczyźni w wieku co najmniej 21 lat, u których zdiagnozowano zaawansowanego raka piersi, którego nie można leczyć metodami dającymi całkowite wyleczenie.
  • •Choroba, która postępowała po co najmniej jednym leczeniu hormonalnym.
  • •Rak piersi, który jest pozytywny pod względem receptorów estrogenowych i/lub progesteronowych (oznacza to, że komórki rakowe mają receptory, do których przyłączają się hormony płciowe).
  • •Rak piersi, który jest negatywny pod względem HER2 (oznacza to, że komórki rakowe nie posiadają nadmiernej ilości białka HER2).

✗ Disqualifies

  • •Pacjentki, które wcześniej przyjmowały lenwatinib.
  • •Pacjentki, które przeszły więcej niż jeden cykl chemioterapii w leczeniu zaawansowanej choroby.

Simplified criteria — AI translation

Trial details

Minimum age
21 Years
Maximum age
99 Years
Last updated (source)
July 14, 2026
Sex
No restrictions

Therapies / drugs in trial

Locations (1)

National Cancer Centre Singapore

Singapore, Singapore

Share this trial

Data from ClinicalTrials.gov. AI-assisted translation, last sync: 7/1/2026.

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