- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT03917082
Begrænset adjuverende endokrin terapi til lavrisiko brystkræft (LALEAST)
LA LEAST- Luminal A, begrænset endokrin adjuverende systemisk terapi. Et forsøg med forkortet hormonterapi for lavrisikohormonreceptorpositiv, HER2 negativ tidlig brystkræft
Fase II forsøg med 2 års standard adjuverende endokrin behandling efter lavrisikohormonreceptorpositiv, HER2-negativ, knudenegativ brystkræft hos kvinder over 50 år ved diagnosen.
Studiens hypotese er, at reduktion af adjuverende endokrin behandling fra 5 til 2 år i en befolkning med lav risiko for brystkræft; som bestemt ved histopatologiske kriterier og bekræftet ved lavrisiko genomisk analyse under anvendelse af Prosigna®; vil være sikker og acceptabel for denne population og vil ikke kompromittere de forventede fremragende brystkræftspecifikke resultater for denne population.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Anslået)
Fase
- Fase 2
Kontakter og lokationer
Studiekontakt
- Navn: Caroline Lohrisch, MD
- Telefonnummer: 2707 6048776000
- E-mail: clohrisch@bccancer.bc.ca
Studiesteder
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British Columbia
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Vancouver, British Columbia, Canada, V5Z4E6
- BC Cancer
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Beskrivelse
Inklusionskriterier: for Prosigna®-screening
Diagnose af invasiv brystkræft, som er:
- Unifokal eller multifokal (ikke multicentrisk)
- Ensidigt
- Moderat eller stærkt hormonreceptorpositiv
- HER2 negativ
- Duktal grad 1 eller 2, eller lobulær enhver kvalitet, eller ren tubulær (en hvilken som helst kvalitet) eller ren papillær (en hvilken som helst kvalitet). Ved blandet lobulær-duktal histologi skal den duktale komponent være grad 1 eller 2.
- Stadium pT1N0 (tumor </= 20 mm, negativ node) eller pT2N0 (tumor 21-50 mm, node negativ) eller pT1N0i+ (tumor </=20 mm og isolerede tumorceller i node[s]) eller pT2N0i+ (tumor 21-50 mm og isoleret tumorceller i knude[r]) (se bilag 2). Tumorstørrelsen skal være tilstrækkelig til Prosigna®-testning. pNX-stadiet (nodal status ukendt) er ikke kvalificeret.
- Emnet skal være kvinde
- Forsøgspersonen skal være > 50 år ved diagnosen brystkræft
- Emnet kan være præ-, peri- eller postmenopausalt.
- Forsøgspersonen skal have en forventet levetid på > 5 år baseret på lægens vurdering af forsøgspersonens komorbide sygdomme og alder
- Forsøgspersonen skal gennemgå standardbehandling lokal-regional styring (sentinel node biopsi og/eller aksillær dissektion; brystbevarende kirurgi eller mastektomi; stråling til brystet efter brystbevarende kirurgi, med strålebehandlingsdetaljer pr. lokal institutionspraksis). Operationen vil ikke have været mere end 24 uger før start af endokrin behandling. Forsøgspersoner, der gennemgår gentagne operationer efter stråling, skal uanset indikation tælle datoen for sidste operation, der gik forud for strålingen. Forsøgspersoner kan gennemgå Prosigna®-screening før afslutning af stråling.
- Brystoperationen vil have opnået negative kirurgiske marginer. Tumorer med positive marginer, der ikke kan re-opereres, er berettigede, hvis de efterfølges af stråling med et boost (delvis mastektomi) eller stråling fra brystvæggen (mastektomi)
- Ingen (neoadjuverende eller adjuverende) kemoterapi givet eller planlagt til denne brystkræft
- Ingen anden ikke-brystkræft inden for de sidste 5 år, undtagen ikke-melanom hudkræft, melanom in situ, cervix carcinoma in situ og anal carcinoma in situ
- Ingen tidligere hormonreceptorpositiv invasiv brystkræft. Forudgående kontralateral DCIS behandlet med standardbehandling lokal terapi og tidligere lobulært karcinom in situ (LCIS) er tilladt, forudsat at der ikke blev givet endokrin behandling med nogen af tamoxifen, ovariesuppression, raloxifen eller aromatasehæmmere.
- Forsøgspersonen vil ikke have startet endokrin behandling før tilmeldingen
- Forsøgspersonen har underskrevet en screeningsformular til informeret samtykke
- Forsøgspersonen har til hensigt at følge endokrin behandling i to år i fravær af alvorlig toksicitet
Inklusionskriterier for studieoptagelse:
- Prosigna®-score i lavrisikoområdet, defineret som en ROR på 40 eller lavere
- Forsøgspersonen har endnu ikke påbegyndt endokrin behandling
- Forsøgspersonen har underskrevet formularen til informeret samtykke til undersøgelsen
Ekskluderingskriterier:
• Opfylder ikke alle ovennævnte inklusionskriterier
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: standardbehandling endokrin terapi i to år
Standard of care adjuverende endokrin behandling i to år.
for postmenopausale kvinder vil indledende behandling være aromatasehæmmer, medmindre det er kontraindiceret, i hvilket tilfælde tamoxifen kan anvendes.
For præmenopausale og perimenopausale kvinder vil den indledende behandling være tamoxifen, medmindre det er kontraindiceret, i hvilket tilfælde en luteniserende hormonfrigørende hormon (LHRH) agonist med/uden aromatasehæmmer kan anvendes.
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den nuværende standard for pleje er 5 års endokrin behandling efter tidlig brystkræft.
Intervention vil teste, om 2 år er tilstrækkeligt til population med lav gentagelsesrisiko baseret på genomisk vævsbaseret test
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Fjernt tilbagefaldsfrit interval på fem år
Tidsramme: 5 år efter sidste patient er indskrevet
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frihed for fjernt tilbagefald eller brystkræftdød efter 5 år
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5 år efter sidste patient er indskrevet
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Ti års brystkræftfri interval
Tidsramme: ti år efter den sidste patient er indskrevet
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frihed fra lokalt, regionalt, fjernt tilbagefald af brystkræft eller død fra brystkræft eller ipsilateralt eller kontralateralt duktalt carcinom in situ eller kontralateralt invasivt brystkræft efter ti år
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ti år efter den sidste patient er indskrevet
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Ti års forekomst af kontralateral brystkræft
Tidsramme: ti år efter den sidste patient er indskrevet
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brystkræft, der forekommer i det kontralaterale bryst, inklusive duktalt carcinoma in situ (DCIS) og invasiv brystkræft, inden for ti år efter tilmelding.
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ti år efter den sidste patient er indskrevet
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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Studiestol: Caroline Lohrisch, MC, BC Cancer
Publikationer og nyttige links
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Yderligere relevante MeSH-vilkår
- Hudsygdomme
- Neoplasmer
- Neoplasmer efter sted
- Brystsygdomme
- Brystneoplasmer
- Lægemidlers fysiologiske virkninger
- Molekylære mekanismer for farmakologisk virkning
- Enzymhæmmere
- Antineoplastiske midler
- Hormoner, hormonsubstitutter og hormonantagonister
- Antineoplastiske midler, hormonelle
- Hormonantagonister
- Knogletæthedsbevarende midler
- Steroidsyntesehæmmere
- Østrogenantagonister
- Selektive østrogenreceptormodulatorer
- Østrogenreceptormodulatorer
- Tamoxifen
- Aromatasehæmmere
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