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Preoperative Window of Endocrine Therapy Provides Information to Increase Compliance (POWER PIINC)

5 luglio 2018 aggiornato da: University of Utah
The purpose of the study is to see if tumors respond to endocrine therapy by taking a total of 21 doses of Tamoxifen before and after surgery. Tamoxifen is currently approved by the FDA (Food and Drug Administration) for use in the treatment of hormone positive breast cancer.

Panoramica dello studio

Descrizione dettagliata

Patients who are eligible (newly diagnosed hormone positive clinical stage 1 or 2 breast cancer) will be approached about the study. If they sign informed consent a prescription for 21 doses of Tamoxifen will be provided. The patient's surgery will be scheduled at a time convenient for the patient and the surgeon. Once the surgery has been scheduled, a medication calendar will be completed that allows the patient to take tamoxifen for 7 days preoperatively with the 7th dose of tamoxifen to coincide with the day before surgery. The patient will continue to take tamoxifen for 2 weeks (14 days) after surgery. Patients will then proceed along normal treatment guidelines. For those needing chemotherapy or radiation therapy, we recommend the long term endocrine therapy start at the conclusion of chemo and/or radiation treatments. For those not going on to any additional therapy, the prescription for endocrine therapy will be written at the initial post-operative visit.

Unstained slides from the formalin-fixed, paraffin-embedded tissue blocks from the patient's breast tissue from which the original diagnosis of breast cancer was made by H&E will be stained for Ki67. After endocrine therapy and subsequent resection, carcinoma will be confirmed by the participating pathologist on H&E, and Ki67 will be performed on unstained slides from a representative tissue block containing invasive carcinoma. The pathologist will circle a designated area of tumor on the H&E slide and both the H&E and immunostained (Ki67) slides will be scanned in a digital imaging device (Aperio XT Scanscope), which quantitatively analyzes the tumor designated by the pathologist with image analysis algorithms. The algorithm accurately detects regions of interest and distinguishes cells and sub-cellular objects within these target regions. It determines morphology and expression profiles per individual cell or cell compartment. For Ki67 analysis, a nuclear Immunohistochemistry (IHC) algorithm will be used.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

52

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Utah
      • Salt Lake City, Utah, Stati Uniti, 84112
        • Huntsman Cancer Institute

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Age > 18 years old
  • Diagnosed with hormone receptor positive invasive breast cancer (estrogen receptor (ER) or progesterone receptor (PR) or both >1%) by core needle biopsy
  • Clinical American Joint Committee on Cancer (AJCC) 7th edition Stage 1 or 2
  • Candidate for surgical therapy
  • Eastern Cooperative Oncology Group (ECOG) performance status 0,1, or 2
  • No chemotherapy or endocrine therapy for breast cancer in last 5 years
  • Paraffin fixed core needle tissue block, or biopsy punch available for central analysis for proliferative markers
  • Not pregnant or lactating and practicing adequate birth control if premenopausal
  • Able and willing to provide informed consent

Exclusion Criteria:

  • Prior personal history of uterine cancer
  • Prior personal history of stroke or deep vein thrombosis (DVT)
  • Current therapy with strong CYP2D6 inhibitors The following medications should not be administered with tamoxifen (21 day treatment period) and will need to be stopped for the designated period of time prior to starting the study tamoxifen.

No other prior malignancy is allowed except for the following: adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, adequately treated Stage 0, I or II cancer from which the patient is currently in complete remission, or any other cancer from which the patient has been disease-free for 5 years

Fluoxetine - should be discontinued 30 days prior to starting tamoxifen Paroxetine - should be discontinued 5 days prior to starting tamoxifen Sertraline - should be discontinued 5 days prior to starting tamoxifen Bupropion - should be discontinued 5 days prior to starting tamoxifen

  • Concurrent coumarin-type anticoagulation therapy
  • Any other contraindications to tamoxifen therapy

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: All patients
All patients enrolled in the study.
All patients will take tamoxifen 20 mg po daily for 7 days prior to surgery and for 14 days after surgery.
Breast cancer surgery

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Ki67 Expression in Tumors
Lasso di tempo: 7 days
Demonstrate a significant change in Ki67 expression in tumors with 7 days of pre-surgical tamoxifen.
7 days

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in FACT-ES Symptom Scores
Lasso di tempo: 18 months
Patients were given the Functional Assessment of Cancer Therapy - Endocrine Symptoms (FACT-ES) quality of life assessment at baseline (prior to tamoxifen administration) and again 18 months following breast surgery to assess quality of life. The difference in total score from baseline to 18 months was calculated. The FACT-ES total score ranges from 0-180, with higher scores indicating higher quality of life.
18 months
Number of Participants With Long Term Endocrine Therapy Adherence
Lasso di tempo: 18 months
For the patient population on this study, endocrine therapy was indicated for 5 years post-surgery according to the current standard of care recommendations for hormone positive breast cancer. Endocrine therapy was prescribed as standard of care as appropriate for each patient's situation. At 18 months post-surgery, patients were evaluated to determine if they were taking their endocrine therapy as prescribed.
18 months
Correlation Between Changes in Ki67 and Symptoms
Lasso di tempo: 7 days
Evaluate correlation between changes in Ki67 expression and symptom scores. Differences between changes in FACT-ES total score were correlated with changes in Ki67 expression using a the Spearman correlation method and results are expressed as the correlation coefficient.
7 days

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in FACT-ES Symptom Scores
Lasso di tempo: 7 days
Patients were given the Functional Assessment of Cancer Therapy - Endocrine Symptoms (FACT-ES) quality of life assessment at baseline (prior to tamoxifen administration) and again 7 days following start of tamoxifen to assess quality of life while on tamoxifen. The difference in total score from baseline to 7 days was calculated. The FACT-ES total score ranges from 0-180, with higher scores indicating higher quality of life.
7 days

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Investigatori

  • Investigatore principale: Leigh Neumayer, MD, Huntsman Cancer Institute

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 agosto 2012

Completamento primario (Effettivo)

1 novembre 2016

Completamento dello studio (Effettivo)

1 novembre 2016

Date di iscrizione allo studio

Primo inviato

4 giugno 2012

Primo inviato che soddisfa i criteri di controllo qualità

6 giugno 2012

Primo Inserito (Stima)

7 giugno 2012

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

1 agosto 2018

Ultimo aggiornamento inviato che soddisfa i criteri QC

5 luglio 2018

Ultimo verificato

1 luglio 2018

Maggiori informazioni

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Prove cliniche su Tamoxifen

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