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

30. April 2021 aktualisiert von: 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.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

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.

Studientyp

Beobachtungs

Einschreibung (Tatsächlich)

49

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

  • Vereinigtes Königreich
    • Surrey
      • Carshalton, Surrey, Vereinigtes Königreich, SM2 5PT
        • The Royal Marsden NHS Foundation Trust London and Surrey

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

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

Beschreibung

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

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
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.
Arzneimittel: 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.
Andere Namen:
  • Stivarga

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
disease control rate (DCR), measured in months
Zeitfenster: 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

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
progression free survival (PFS), measured in months
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Royal Marsden NHS Foundation Trust

Mitarbeiter

Bayer

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. Januar 2015

Primärer Abschluss (Tatsächlich)

1. Januar 2017

Studienabschluss (Tatsächlich)

1. Juli 2017

Studienanmeldedaten

Zuerst eingereicht

6. Januar 2015

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

4. Januar 2017

Zuerst gepostet (Schätzen)

5. Januar 2017

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

3. Mai 2021

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

30. April 2021

Zuletzt verifiziert

1. Januar 2017

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 4164

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