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The Role of Simvastatin in The Epithelial-Mesenchymal Transition Process of Breast Cancer

16. september 2026 opdateret af: Dr. dr. Erwin Danil Yulian, Sp.B (K) Onk, Universitas Indonesia

Vimentin Expression-based Therapeutic Response in Triple Negative Breast Cancer Receiving Combination of Simvastatin and NAC: A Randomized, Double-Blind, Placebo-Controlled Trial

Introduction: Most cases of Triple Negative Breast Cancer (TNBC) have a high proliferation rate. TNBC is associated with a poor prognosis, a high recurrence rate, and a high incidence of distant metastases. The Epithelial-Mesenchymal Transition process (EMT) plays an essential role in the metastatic process. EMT markers were also more abundant in TNBC and contributed to a poorer TNBC prognosis. As an important EMT marker, the increased expression of vimentin also contributed to the increase in TNBC aggressiveness and resistance to chemotherapeutic agents. Through the mechanism of action in inhibiting the mevalonate pathway, statins can help inhibit the EMT process in metastases. Notably, simvastatin promotes the down-regulation of vimentin in breast cancer cells. The combination of statins and neoadjuvant chemotherapy (NAC) improves the cancer patient's response. This study is expected to evaluate the role of a combination between NAC and simvastatin on therapeutic response in TNBC patients through vimentin expression.

Methods: This study is a double-blind, randomized, placebo-controlled trial conducted in Dr. Cipto Mangunkusumo National Central General Hospital. An expected total of 26 TNBC patients will be assessed for eligibility and asked for informed consent. Patients with the plan to have ACT (Doxorubicin hydrochloride, Cyclophosphamide, Paclitaxel) chemotherapy regimen will receive either a combination of ACT-Simvastatin (40 mg/day) or ACT-Placebo. The biopsy will be taken pre-NAC to make the histopathological diagnosis and examine the expression of vimentin. Patients will be evaluated for adverse effects reaction every cycle and the clinical response after 8 cycles. The post-intervention biopsy will be conducted after the cycle finish. The pathological response and vimentin expression will be reviewed from the obtained samples.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

26

Fase

  • Fase 2

Kontakter og lokationer

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

Studiekontakt

Studiesteder

    • DKI Jakarta
      • Jakarta Pusat, DKI Jakarta, Indonesien, 10430
        • Rekruttering
        • Dr. Cipto Mangunkusumo National Central General Hospital
        • Kontakt:
          • Erwin D Yulian, MD
          • Telefonnummer: +6281315249627

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

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

Inclusion Criteria:

  1. Female patients with advanced breast cancer (locally advanced and distantly advanced) with triple-negative molecular type confirmed by biopsy and immunohistochemical examination.
  2. The patient planned to receive 8 cycles of AC-T chemotherapy.
  3. Patient age > 18 years.
  4. Willing to participate in research by signing informed consent.

Exclusion Criteria:

  1. The patient is pregnant or breastfeeding.
  2. Patients who have received chemotherapy or are on simvastatin therapy.
  3. Allergy to statins.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Simvastatin

The group received standard treatment with simvastatin 40mg in capsule by oral route, once a day, for 21 days (every cycle of the chemotherapy regiment)

The administration of Simvastatin 40 mg in addition to ACT regiment of neoadjuvant chemotherapy

Andre navne:
  • Simvastatin
Placebo komparator: Placebo

The group received standard treatment with placebo 40mg in capsule by oral route, once a day, for 21 days (every cycle of the chemotherapy regiment)

The administration of Placebo capsule 40 mg in addition to ACT regiment of neoadjuvant chemotherapy

Andre navne:
  • Placebo oral kapsel 40 mg

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Vimentin Expression
Tidsramme: 6 months

Vimentin expression is measured based on Histoscore (H-Score) with immunohistochemistry examination:

  • 0-50 : negative (0)
  • 51-100 : weak positive (1+)
  • 101-200 : moderate positive (2+)
  • 201-300 : strong positive (3+)
6 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Pathological Response
Tidsramme: 6 months

Pathological Response as Measured by Miller-Payne system

Evaluation before and after chemotherapy, divided into:

  1. Grade 1: There is no significant change or reduction in cancer cells.
  2. Grade 2: Reduction of <30% cancer cells
  3. Grade 3: Reduction of cancer cells between 30-90%
  4. Grade 4: Reduction of > 90% cancer cells
  5. Grade 5 : There are no residual cancer cells. DCIS (Ductal Carcinoma In Situ) might be detected.
6 months
Clinical Response
Tidsramme: 6 months

Clinical response based on WHO (World Health Organization) criteria:

  1. Complete Response (CR): Disappearance
  2. Partial Response (PR): 50% decrease
  3. Stable Disease(SD): Neither PR nor PD criteria met
  4. Progressive Disease (PD):25% increase; no CR, PR, or SD documented before increased disease
6 months

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Ledende efterforsker: Erwin D Yulian, MD, Surgical Oncology Division, Department of Surgery, Universitas Indonesia
  • Studieleder: Tantri Hellyanti, MD, Department of Pathological Anatomy, Universitas Indonesia
  • Studiestol: Shabrina Adzania, MD, Research Assistant, Department of Surgery, Universitas Indonesia

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)

19. august 2022

Primær færdiggørelse (Anslået)

1. november 2026

Studieafslutning (Anslået)

1. december 2026

Datoer for studieregistrering

Først indsendt

19. september 2022

Først indsendt, der opfyldte QC-kriterier

19. september 2022

Først opslået (Faktiske)

22. september 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

21. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

16. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • IndonesiaU2022

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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