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Prospective Translational Study Investigating Molecular Predictors of Resistance and Response to Regorafenib Monotherapy (PROSPECT-R)

30 aprile 2021 aggiornato da: Royal Marsden NHS Foundation Trust

A Prospective Translational Study Investigating Molecular Predictors of Resistance and Response to Regorafenib Monotherapy in RAS Mutant Metastatic Colorectal Cancer

This is a single centre prospective biological translational research study involving the collection of tumour tissue, blood samples and clinical data from patients being treated with regorafenib for metastatic Colorectal Cancer (mCRC) at the Royal Marsden Hospital. Patients will be eligible for the study if they have a histological diagnosis of CRC, are refractory to standard available therapies with palliative intent for mCRC, have received prior treatment with at least one anti-VEGF antibody and chemotherapy drugs including fluorouracil (5FU) or capecitabine, oxaliplatin and irinotecan, and patients have RAS mutant tumours.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

This is an exploratory translational research study to obtain research biopsies of RAS mutant metastatic colorectal cancer (mCRC) tumour tissue prior to commencement of regorafenib multi-tyrosine kinase inhibitor (MKI) treatment targeting vascular endothelial growth factor receptor (VEGFR), tumour microenvironment and oncogenic driver alterations, and again at development of resistance. Candidate markers of resistance will be identified in tissue biopsies through genetic and other molecular analysis and parallel collection of serial blood specimens will facilitate the identification of resistance markers and the tracking of resistance evolution in circulating nucleic acids. Early dynamic contrast enhanced MRI (DCE-MRI) along with diffusion weighted (DW)-MRI imaging at the beginning, and on day 15+/-7 post treatment will be performed. Additionally, dual contrast enhanced CT (DECT) will be performed according to routine clinical evaluation time points before drug administration and at 8 weeks after drug administration. Disease will be monitored with serial CT scans of the chest abdomen and pelvis (CT-CAP) every eight weeks, until progression. The aim of the study is to identify novel predictive biomarkers of resistance and response to this targeted therapy in mCRC previously treated with oxaliplatin, fluoropyrimidines and irinotecan, using genetic, epigenetic, transcriptomics, proteomic and live tissue culture methods. These molecular analyses will be performed on metastatic tumour tissue samples taken firstly before commencement of regorafenib, and secondly on progression of disease, and thirdly from archival primary or metastatic tumour tissue. There is an additional biopsy at 8 weeks in patients with response or stable disease, as determined by Response Evaluation Criteria in Solid Tumours (RECIST) 1.1 criteria.

Tipo di studio

Osservativo

Iscrizione (Effettivo)

49

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

  • Regno Unito
    • Surrey
      • Carshalton, Surrey, Regno Unito, SM2 5PT
        • The Royal Marsden NHS Foundation Trust London and Surrey

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

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

Patients will be selected from the clinics and multi-disciplinary meetings, so long that they meet all the inclusion criteria and no exclusion criteria.

Descrizione

Inclusion Criteria:

  1. Patients with RAS mutant (MT) metastatic colorectal cancer (mCRC) who have been at least once treated with available therapies including fluoropyrimidine-based chemotherapy, oxaliplatin, irinotecan and an anti-angiogenic agent, except for patients who have not been treated with oxaliplatin due to previous documented peripheral neuropathy in an adjuvant setting or in those patients where disease has progressed within a short time from receiving adjuvant treatment (<12 months).
  2. Eligible to receive regorafenib within the context of PROSPECT-R trial at the Royal Marsden Hospital

Exclusion criteria:

A patient who meets any of the exclusion criteria will NOT be eligible for randomization.

A patient must NOT

  1. have had prior treatment with regorafenib or any other VEGF-targeting kinase inhibitor
  2. have had previous or concurrent cancer that is distinct in primary site or histology from colorectal cancer within 5 years prior to randomization EXCEPT for curatively treated cervical cancer in situ, non-melanoma skin cancer and superficial bladder tumors [Ta (Noninvasive tumor), Tis (Carcinoma in situ) and T1 (Tumor invades lamina propria)].
  3. Patients that are participating in another clinical trial involving an investigational medicinal product, unless it is more than 14 days after they have ceased the investigational medicinal product
  4. Patients that are participating in another research study involving tumour tissue biopsies planned to take place during the time that the patient is participating in this study
  5. Have had a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to initiation of study treatment
  6. If female and of childbearing potential, be engaged in breast feeding
  7. Be unable to swallow oral tablets (crushing of study treatment tablets is not allowed)
  8. Arterial or venous thrombotic or embolic events such as cerebrovascular accident (including transient ischemic attacks), deep vein thrombosis or pulmonary embolism within 6 month before the start of study medication (except for adequately treated catheter-related venous thrombosis occurring more than one month before the start of study medication)
  9. Interstitial lung disease with ongoing signs and symptoms at the time of informed consent.
  10. Ongoing infection > Grade 2 NCI Common Toxicity Criterial for Adverse Effects (CTCAE).
  11. Uncontrolled hypertension (Systolic blood pressure > 140 mmHg or diastolic pressure > 90 mmHg) despite optimal medical management
  12. Have congestive heart failure classified as New York Heart Association Class 2 or higher
  13. Have had unstable angina (angina symptoms at rest) or new-onset angina < 3 months prior to screening
  14. Have had a myocardial infarction < 6 months prior to initiation of study treatment

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

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
Regorafenib

160 mg orally (po) od for 3 weeks of every 4-week cycle

All patients will be required to have pre-treatment dynamic contrast enhance computed tomography (DECT) scan pre-treatment and at 8 weeks. Suitable patients will also be required to have dynamic contrast enhanced magnetic resonance imaging (DEC-MRI) and diffusion weighted (DW)-MRI, pre-treatment and at 2 weeks. All patients will also be required to have an Ultrasound (USS) or CT-guided biopsy of suitable metastatic lesion.
Droga: Regorafenib
Patients meeting all of the inclusion criteria and none of the exclusion criteria will receive regorafenib 160 mg orally (po) od for 3 weeks of every 4-week cycle. Each cycle will comprise 3 weeks of treatment followed by 1 week without treatment, hereafter described as "3 weeks on/1 week off". Each 160-mg dose will include four regorafenib 40-mg tablets.
Altri nomi:
  • Stivarga

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
disease control rate (DCR), measured in months
Lasso di tempo: 12 months
DCR will be defined as complete response (CR)/partial response (PR)/ stable disease (SD) using RECIST v1.1. Chi2 or Fisher's exact tests will be employed to explore whether there is an association between low or high mutations and DCR. Logistic regression will be employed to produce odds ratios (ORs) and 95% confidence intervals (CIs).
12 months

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
progression free survival (PFS), measured in months
Lasso di tempo: 12 months
PFS will be measured from start of treatment to date of progression or death from any cause.Logistic regression will be employed to produce odds ratios (ORs) and 95% confidence intervals (CIs). The PFS will be estimated using the Kaplan-Meier method and survival curves will be generated for each group. The log-rank test will be used to compare the survival curves and a Cox proportional hazards model will be fitted to obtain hazard ratios (HRs) and 95% CIs. The proportional hazards assumption will be tested with the use of Schoenfeld residuals
12 months
overall survival (OS), measured in months
Lasso di tempo: 12 months
OS will be defined as time from start of treatment to death of any cause. Logistic regression will be employed to produce odds ratios (ORs) and 95% confidence intervals (CIs). The OS will be estimated using the Kaplan-Meier method and survival curves will be generated for each group. The log-rank test will be used to compare the survival curves and a Cox proportional hazards model will be fitted to obtain hazard ratios (HRs) and 95% CIs. The proportional hazards assumption will be tested with the use of Schoenfeld residuals
12 months
Median values of volume transfer constant (Ktrans) and enhancing fraction (EF) and their product KEF (product of summarised median values of Ktrans x EF/100) will be compared at baseline and on day 15
Lasso di tempo: 15 days
Dynamic contrast enhance magnetic resonance imaging (DCE-MRI) will be performed pre-treatment and at day 15. KEF changes of more than 70% between the two time points will be considered significant and patients will be thus stratified in two groups, i.e. A) drop in KEF of >70% and B) less than 70% drop in KEF.
15 days

Collaboratori e investigatori

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

Sponsor

Royal Marsden NHS Foundation Trust

Collaboratori

Bayer

Pubblicazioni e link utili

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Pubblicazioni generali

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 gennaio 2015

Completamento primario (Effettivo)

1 gennaio 2017

Completamento dello studio (Effettivo)

1 luglio 2017

Date di iscrizione allo studio

Primo inviato

6 gennaio 2015

Primo inviato che soddisfa i criteri di controllo qualità

4 gennaio 2017

Primo Inserito (Stima)

5 gennaio 2017

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

3 maggio 2021

Ultimo aggiornamento inviato che soddisfa i criteri QC

30 aprile 2021

Ultimo verificato

1 gennaio 2017

Maggiori informazioni

Termini relativi a questo studio

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • 4164

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 .

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