Local Treatment in ER-positive/HER2-negative Oligo-metastatic Breast Cancer (CLEAR)
Local Treatment in Addition to Endocrine Therapy in ER-positive/HER2-negative Oligo-metastatic Breast Cancer (CLEAR): a Multicentre, Single -Arm, Phase 2 Trial
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Local treatment included surgical resection, stereotactic body radiotherapy, palliative radiotherapy, and radiofrequency ablation. Stereotactic body radiotherapy is preferred as a radiation modality.
Endocrine therapies with/without target therapy including CDK4/6 inhibitors or mTOR inhibitors are the mainstay of 1st line treatment for ER-positive/HER2-negative metastatic breast cancer.
Studietype
Registrering (Forventet)
Fase
- Fase 2
Kontakter og plasseringer
Studiekontakt
- Navn: Sung Gwe Ahn, Ph.D.
- Telefonnummer: 82-2-2019-4402
- E-post: asg2004@yuhs.ac
Studer Kontakt Backup
- Navn: Joon Jeong, Ph.D.
- Telefonnummer: 82-2-2019-3379
- E-post: gsjjoon@yuhs.ac
Studiesteder
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Seoul, Korea, Republikken, 135720
- Rekruttering
- Gangnam Severance Hospital
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Ta kontakt med:
- Joon Jeong, M.D.,Ph.D.
- Telefonnummer: 82220193370
- E-post: gsjjoon@yuhs.ac
-
Ta kontakt med:
- Sung Gwe Ahn, M.D.
- Telefonnummer: 82220193370
- E-post: asg2004@yuhs.ac
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
-ER-positive/HER2-negative in primary tumor
- Oligometastases: ≤ 2 lesions in single organ or site (lung, bone, liver, adrenal glands, distant LNs)
- Recurrent cancer after completion of primary treatment (RFI≥1year)
- Metastatic lesions are feasible for resection or radiotherapy (Size≤3cm)
Exclusion Criteria:
- De Novo metastatic cancer at initial diganosis
- Recurrence-free inverval < 1 year
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
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Eksperimentell: Endocrine and local treatments
Endocrine therapy is a standard-of-care for 1st line treatment in the patients with ER+/HER2- metastatic breast cancer. Endocrine options included aromatase inhibitors, aromatase inhibitors with CDK4/6 inhibitors, fulvestrant, fulvestrant with CDK4/6 inhibitors, everolimus with exemestane, tamoxifen. For premenopausal women, agents for ovarian function suppression using GnRH agonists or surgical ovarian ablation including bilateral salpingo-oophorectomy are allowed. Local treatments for metastatic lesions will be added in this group. Local treatments include modalities described below: i) Surgical resection: the achievement of tumor-free margin is not obligatory. ii) Stereotactic body radiotherapy iii) Radiofrequency ablation |
Surgical resection for their metastatic lesions will be performed.
Achievement of tumor-free margin is not mandatory.
Deliver appropriate metastasis directed radiotherapy while minimizing exposure of surrounding normal tissues.
Total radiation dose and fractions are various according to metastatic lesions (57~97.5Gy/6~10
Fraction).
Andre navn:
RFA is a localized thermal treatment technique designed to induce tumor destruction by heating the tumor tissue to temperatures that exceed 60℃.
The alternating current of radiofrequency waves passing down from an uninsulated electrode tip into the surrounding tissues generates changes in the direction of ions and creates ionic agitation and frictional heating.
This tissue heating then drives extracellular and intracellular water out of the tissue, resulting in tissue destruction by coagulative necrosis.
Andre navn:
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Progression-free survival
Tidsramme: From the date of registration to the date of first PFS failure or last follow-up; assessed up to 6 years; Median PFS of all registered patients will be over 30 months
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Failure: progression or death due to any cause
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From the date of registration to the date of first PFS failure or last follow-up; assessed up to 6 years; Median PFS of all registered patients will be over 30 months
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Overall survival
Tidsramme: From the date of registration to the date of death or last follow-up; assessed up to 10 years
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Failure: death due to any cause
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From the date of registration to the date of death or last follow-up; assessed up to 10 years
|
Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Joon Jeong, Ph.D., Gangnam Severance Hospital
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Forventet)
Studiet fullført (Forventet)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- CLEAR
Legemiddel- og utstyrsinformasjon, studiedokumenter
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