- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01745289
Long-term Anastrozole Versus Tamoxifen Treatment Effects (LATTE)
Long-term Anastrozole Versus Tamoxifen Treatment Effects (LATTE)
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
The LATTE study aims to collect further follow-up information on a maximum of 2200 UK eligible patients, who were randomised to the monotherapy arms (anastrozole or tamoxifen) in the ATAC trial. The LATTE study also aims to collect follow-up information on as many eligible patients as possible in international sites in the EU, US and Australia/New Zealand who were randomised to the monotherapy arms (anastrozole or tamoxifen) in the ATAC trial. The study's primary objective is to provide additional efficacy and safety data on time to recurrence of breast cancer and death after recurrence. The secondary objectives include time to distant recurrence, cancer-specific survival, new breast primaries, other cancers, ischaemic cardiac and cerebrovascular events and hip (and other) fractures. Participants will be followed-up annually until at least 15 years median follow-up.
In 2010, results from 10-year follow-up from ATAC demonstrated that there is long-term superiority of anastrozole over tamoxifen as initial adjuvant therapy for post-menopausal women with hormone-sensitive early breast cancer. This paper demonstrated that there were significantly lower rates of local and distant recurrence, as well as reduced contralateral breast cancer in patients treated with anastrozole. However, in 2016 a recent preliminary analysis of the LATTE study demonstrated that the benefits of anastrozole do not continue long-term after 10 years in terms of reduced recurrence rates. The results also suggested that there was a larger reduction of new contralateral tumours with tamoxifen. However, the preliminary analysis was limited in that there was limited data with possible under reporting of vital events inked to the safety and efficacy endpoints; this therefore may diminish the effect of anastrozole. Queen Mary University of London (QMUL) therefore require extended cohort events, obtainable from HES, cancer registration and mortality data in order to conclude the long-term safety of either intervention. QMUL will then be able to integrate the pseudonymised LATTE data with the ATAC data sets in order to perform an analysis of the overall 20-year follow-up period.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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England
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London, England, Det Forenede Kongerige, EC1M6BQ
- Queen Mary University of London
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- patients randomised to one of the monotherapy arms in the ATAC Trial
- alive at 10 years follow-up
Exclusion Criteria:
- patients who have withdrawn consent to participate in the ATAC Trial or this study
- where the LATTE Executive Committee determines that there is no possibility of obtaining follow-up
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Time to recurrence
Tidsramme: LATTE particpants who are 10 years post treatment will be followed for 5 years for the purpose of this study.
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Time to recurrence of breast cancer in the post 10 year period (defined as the earliest of local or distant recurrence, new primary breast cancer, or death)
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LATTE particpants who are 10 years post treatment will be followed for 5 years for the purpose of this study.
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Robert Smith, PhD, American Cancer Society, Inc.
- Ledende efterforsker: Aman Buzdar, MD, M.D. Anderson Cancer Center
Publikationer og nyttige links
Generelle publikationer
- Cuzick J, Sestak I, Baum M, Buzdar A, Howell A, Dowsett M, Forbes JF; ATAC/LATTE investigators. Effect of anastrozole and tamoxifen as adjuvant treatment for early-stage breast cancer: 10-year analysis of the ATAC trial. Lancet Oncol. 2010 Dec;11(12):1135-41. doi: 10.1016/S1470-2045(10)70257-6. Epub 2010 Nov 17.
- Allawi Z, Cuzick J, Baum M; ATAC/LATTE investigators. Does trauma or an intercurrent surgical intervention lead to a short-term increase in breast cancer recurrence rates? Ann Oncol. 2012 Apr;23(4):866-9. doi: 10.1093/annonc/mdr316. Epub 2011 Jul 15.
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- IRB00050408
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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