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EVERST- Everolimus After Alpelisib in Women With Hormone Receptor-positive (HR+) Metastatic Breast Cancer (MBC) (MBC)

9. juni 2026 opdateret af: Tel-Aviv Sourasky Medical Center

EVERST- Everolimus After Alpelisib in Women With HR+ MBC- This Phase II, Open-label, Single-arm, Study Investigates the Clinical Benefit of Everolimus Combined With Endocrine Therapy. in Hormone Receptor-positive (HR+), Metastatic Breast Cancer Patients Who Progressed on Prior PI3K Inhibitor Therapy With Endocrine Therapy. The Trial Aims to Determine if Sequential Inhibition of the PI3K/AKT/mTORC1 Pathway Retains Efficacy Post-PI3K Inhibitor Resistance, Hypothesizing That Everolimus Will Demonstrate a Response Rate Exceeding the Historical 9.5% Observed in the BOLERO2 Trial.

This phase II, open-label, single-arm, study investigates the clinical benefit of everolimus combined with endocrine therapy (ET) in hormone receptor-positive (HR+), metastatic breast cancer (MBC) patients who progressed on prior PI3K inhibitor therapy (+ ET). The trial aims to determine if sequential inhibition of the PI3K/AKT/mTORC1 pathway retains efficacy post-PI3K inhibitor resistance, hypothesizing that everolimus will demonstrate a response rate exceeding the historical 9.5% observed in the BOLERO2 trial.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Detailed Description The study employs a two-stage design to evaluate the primary endpoint of clinical response rate (complete/partial response per RECIST v1.1). Stage 1 will enroll 19 patients with measurable disease; if no responses are observed, the trial terminates. If ≥1 response occurs, 24 additional patients will be enrolled (total N=43), with success defined as ≥2 responses. Secondary endpoints include progression-free survival (PFS), clinical benefit rate (CBR), and biomarker analysis via longitudinal ctDNA profiling to identify genomic drivers of resistance/sensitivity. Eligible participants receive everolimus (10 mg/day) + ET until progression, unacceptable toxicity, or withdrawal. Tumor assessments occur every 8 weeks, with toxicity monitoring.

Study Design

Intervention Model: Single-group assignment

Primary Purpose: Treatment

Phase: II

Allocation: Non-randomized

Masking: None (open-label)

Outcome Measures

Primary: Objective response rate (ORR).

Secondary:

PFS (time from treatment initiation to progression/death).

CBR (proportion with CR/PR or stable disease ≥24 weeks).

Biomarker correlation (e.g., ESR1 mutations, PTEN alterations) via ctDNA analysis.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

19

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Breast Cancer coordinator Breast Cancer coordinator
  • Telefonnummer: 972-03-6974092
  • E-mail: hananm@tlvmc.gov.il

Studiesteder

  • Israel
      • Tel Aviv, Israel
        • Rekruttering
        • Ichilov-Sourasky Medical Center
        • Kontakt:
          • Hanan Mansour Breast cancer study coordinator
          • Telefonnummer: 97236974062
          • E-mail: hananm@tlvmc.gov.il

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

HR+ MBC post CDK 4/6 inhibitors and anti PI3K inhibitor.

Beskrivelse

Inclusion Criteria:

  • HR+MBC with PI3Kmut Post CDK 4/6+ET Post PI3K inhibitor+ET

Exclusion Criteria:

  • Women who didn't receive anti-PI3K

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
HR+MBC post Alpelisib
Patients with HR+MBC post Alpelisib treatment who are scheduled to receive Everolimus with endocrine therapy, an additional blood sample is collected for biomarker evaluation.
Medicin: Everolimus (Afinitor) tablets with endocrine therapy
Patients receive standard of care treatment as prescribed by their treating physician. This study only observes the outcomes and does not alter the treatment regimen, dosing, or schedule."
Procedure: Blood draw for biomarker and genetic analysis
"A supplementary blood sample is collected from participants to analyze genetic and molecular biomarkers, aiming to identify potential correlations between these markers and clinical response to the standard treatment."

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
ORR
Tidsramme: Response rate- From enrollment to the first scan at 8-12 weeks
Objective response rate -best response rate in the first scan 8-12 weeks from day1
Response rate- From enrollment to the first scan at 8-12 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
PFS
Tidsramme: From date of enrollment until the date of first documented progression, assessed up to 24 months.
Time from Day 1 to progression, an average of 16 weeks
From date of enrollment until the date of first documented progression, assessed up to 24 months.
CBR Clinical Benefit Rate
Tidsramme: Through the end of the study, assessed up to 24 months.
Proportion with CR/PR or stable disease ≥24 weeks
Through the end of the study, assessed up to 24 months.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Tel-Aviv Sourasky Medical Center

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. september 2022

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. december 2027

Datoer for studieregistrering

Først indsendt

15. maj 2025

Først indsendt, der opfyldte QC-kriterier

9. juni 2026

Først opslået (Faktiske)

12. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

9. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • TLV-0295-21

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Individual participant data will not be made available outside the primary research group to protect participant privacy and maintain confidentiality.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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