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Colorectal CancerPhase 2BRICKETNCT06578559

Phase II Study of ctDNA-guided Encorafenib Plus Cetuximab Retreatment in Patients BRAF V600E Mutated mCRC

A Phase 2 study testing Cetuximab and Encorafenib in people with Colorectal Cancer, run by Gruppo Oncologico del Nord-Ovest at 13 sites in Italy.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The aim of this study is to evaluate the activity, in terms of best response according to RECIST criteria 1.1 as assessed by the local investigator, of the ctDNA-guided retreatment with encorafenib plus cetuximab in BRAFV600E mutated mCRC patients experiencing benefit from previous exposure to encorafenib plus… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colorectal Cancer
What is being tested?
Cetuximab and Encorafenib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
13 sitesItaly
Study dates
23 Jul 2024to 20 Oct 2026
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • histologically proven diagnosis of colorectal adenocarcinoma;
  • age ≥ 18 years;
  • ECOG Performance status ≤ 1;
  • BRAFV600E mutated status of primary colorectal cancer and/or related metastasis, by local laboratory assessment according to standard procedures by means of molecular assay on genomic DNA;
  • Metastatic disease with at least one measurable lesion according to RECIST 1.1. criteria;
  • previous treatment with encorafenib plus cetuximab with or without chemotherapy (i.e., ±FOLFOX/FOLFIRI) in any line, producing a RECIST 1.1 complete/partial response or disease stabilisation, with a PFS of this treatment lasting at least 6 months;
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  • documentation of RECIST 1.1 disease progression during or after the end of the previous exposure to encorafenib plus cetuximab ± chemotherapy;
  • one intervening line of treatment not including any BRAF and EGFR inhibitor, between the end of first exposure to encorafenib plus cetuximab ± chemotherapy and the time of screening;
  • at least 4 months elapsed between the end of the previous exposure to encorafenib plus cetuximab ± chemotherapy and the retreatment with encorafenib plus cetuximab;
  • previous treatment with immune checkpoint inhibitors (anti-PD-1/PD-L1 alone or in combination with anti-CTLA-4 agent), in the case of MSI-H or dMMR mCRC;
  • availability of blood sample for ctDNA analysis within 28 days prior enrolment;
  • BRAFV600E mutated status of ctDNA at screening (central laboratory assessment by means of GUARDANT360 CDx, Guardant Health);
  • KRAS, NRAS, MAP2K1 wild-type status and MET not amplified status in ctDNA at screening (central laboratory assessment by means of GUARDANT360 CDx, Guardant Health);
  • Availability of archival tumour tissue (primary tumour and/or metastases) for biomarker analysis;
  • neutrophils >1.5 x 109/L, Platelets >100 x 109/L, Hgb >9 g/dl. Transfusions will be permitted provided the patient has not received more than two units red blood cells in the prior 4 weeks to achieve this criterion.
  • adequate renal function characterised by serum creatinine ≤ 1.5 × upper limit of normal (ULN), or calculated by Cockroft-Gault formula or directly measured creatinine clearance ≥ 50 mL/min at screening;
  • adequate hepatic function characterised by the following at screening: Serum total bilirubin ≤ 1.5 × ULN and < 2 mg/dL. Note: Patients who have a total bilirubin level > 1.5 × ULN will be allowed if their indirect bilirubin level is ≤ 1.5 × ULN; Alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) ≤ 2.5 × ULN, or ≤ 5 × ULN in presence of liver metastases. In the presence of documented Gilbert's syndrome, a value of total bilirubin < 3 × ULN is acceptable.
  • adequate electrolytes at baseline, defined as serum potassium and magnesium levels within institutional normal limits (Note: replacement treatment to achieve adequate electrolytes will be allowed).
  • INR or aPTT ≤ 1.5 × ULN;
  • QT interval corrected for heart rate ≤480 msec at screening;
  • ability to take oral medications;
  • women of childbearing potential must have a negative blood pregnancy test at the screening. For this trial, women of childbearing potential are defined as all women after puberty, unless they are postmenopausal for at least twelve continuous months, are surgically sterile, or are sexually inactive. A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. A high follicle stimulating hormone (FSH) level in the postmenopausal range may be used to confirm a post-menopausal state in women not using hormonal contraception or hormonal replacement therapy. However, in the absence of 12 months of amenorrhea, a single FSH measurement is insufficient;
  • subjects and their partners must be willing to avoid pregnancy from the study screening until 1 month after the last trial treatment. Male subjects with female partners of childbearing potential and female subjects of childbearing potential must, therefore, be willing to use adequate contraception as approved by the investigator. Encorafenib may decrease the efficacy of hormonal contraceptives. Therefore, female patients using hormonal contraception are advised to use an additional or alternative method such as a barrier method (i.e., condom) from the screening phase for at least 1 month following the last dose of study treatment. Note: Abstinence is acceptable if this is the usual lifestyle and preferred contraception for the subject;
  • written informed consent to study procedures;
  • life expectancy of at least twelve weeks;
  • will and ability to comply with the protocol.

Who cannot join

  • Known hypersensitivity or contraindications to trial drugs or any component of the trial drugs;
  • discontinuation of previous treatment with encorafenib and/or cetuximab with or without chemotherapy due to encorafenib- and/or cetuximab-related adverse events;
  • symptomatic brain metastases or spinal cord compression. Notes: Patients previously treated or untreated for these conditions who are asymptomatic in the absence of corticosteroid and anti-epileptic therapy are allowed. Brain metastases or spinal cord compression must be stable for ≥ 4 weeks, with imaging (e.g., magnetic resonance imaging [MRI] or computed tomography [CT]) demonstrating no current evidence of progressive brain metastases or spinal cord compression at screening;
  • leptomeningeal disease;
  • other co-existing malignancies or malignancies diagnosed within the last 5 years except for adequately treated localised basal and squamous cell carcinoma or cervical cancer in situ;
  • treatment with any investigational drug within 30 days prior to enrolment or two investigational agent half-lives (whichever is longer);
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  • Impaired gastrointestinal function (i.e., uncontrolled nausea, vomiting or diarrhea, malabsorption syndrome, small bowel resection) or disease which may significantly alter the absorption of oral study intervention or recent changes in bowel function suggesting current or impending bowel obstruction;
  • use of any herbal medications/supplements or any medications or foods that are moderate or strong inhibitors or inducers of CYP3A4/5 ≤1 week prior to the start of treatment;
  • diagnosis of interstitial pneumonitis or pulmonary fibrosis;
  • known history of acute or chronic pancreatitis within 6 months prior to the start of the treatment;
  • history of chronic inflammatory bowel disease or Crohn's disease requiring medical intervention immunomodulatory or immunosuppressive medications or surgery) ≤12 months prior to first dose;
  • impaired hepatic function, defined as Child-Pugh class B or C;
  • clinically significant cardiovascular diseases, including any of the following:
  • history of acute myocardial infarction, acute coronary syndromes (including unstable angina, coronary artery bypass graft, coronary angioplasty or stenting) ≤6 months prior to registration;
  • congestive heart failure requiring treatment (New York Heart Association Class II and above);
  • recent history (within 1 year prior to registration) or presence of clinically significant cardiac arrhythmias (including uncontrolled atrial fibrillation or uncontrolled paroxysmal supraventricular tachycardia);
  • QT interval corrected for heart rate >480 msec at screening and rate uncontrolled atrial fibrillation and paroxysmal supraventricular tachycardia;
  • pregnant or lactating women. Women of childbearing potential with either a positive or no pregnancy test at baseline. Postmenopausal women must have been amenorrhoeic for at least 12 months to be considered of non-childbearing potential. Sexually active males and females (of childbearing potential) unwilling to practice contraception (barrier contraceptive measure or oral contraception) from the screening phase until 1 month after the last trial treatment;
  • residual CTCAE ≥ Grade 2 toxicity from any prior anticancer therapy, with the exception of grade 2 alopecia or grade 2 neuropathy
  • active eye disorders, including keratitis, ulcerative keratitis or severe dry eye.

Trial locations and contacts

13 sites in 1 country.

13 sites in 1 country

Italy13 sites
  • Istituto Romagnolo Per Lo Studio Dei Tumori "Dino Amadori" Irccs Irst

    Meldola, FC, 47014

  • IRCCS Istituto Nazionale dei Tumori di Milano

    Milan, MI, 20133

  • L'Azienda Ospedaliero Universitaria di Cagliari

    Monserrato, CA, 09042

  • Azienda Ospedaliera Universitaria degli Studi di Campania L. Vanvitelli

    Naples, 80131

  • Istituto Oncologico Veneto Irccs

    Padova, PD, 35128

  • Azienda Ospedaliero-Universitaria Pisana

    Pisa, PI, 56126

  • Nuovo Ospedale di Prato S. STEFANO

    Prato, PO, 59100

  • AUSL Romagna

    Ravenna, RA, 48121

  • Fondazione Policlinico Universitario Agostino Gemelli IRCCS

    Roma, RM, 00168

  • Fondazione Casa Sollievo Della Sofferenza - Irccs

    San Giovanni Rotondo, FG, 71013

  • Pia Fondazione di Culto e di Religione Cardinale G. Panico

    Tricase, LE, 73039

  • A.O.U. Citta Della Salute E Della Scienza Di Torino Presidio Molinette

    Turin, TO, 10126

  • Azienda Sanitaria Universitaria Friuli Centrale

    Udine, UD, 33100

Other trials in Italy

About this study

Official title: Single Arm Phase II Study of ctDNA-guided Encorafenib Plus Cetuximab Retreatment in Patients With BRAF V600E Mutated mCRC (BRICKET)

The aim of this study is to evaluate the activity, in terms of best response according to RECIST criteria 1.1 as assessed by the local investigator, of the ctDNA-guided retreatment with encorafenib plus cetuximab in BRAFV600E mutated mCRC patients experiencing benefit from previous exposure to encorafenib plus cetuximab (+/- chemotherapy) and with BRAFV600E mutated, KRAS, NRAS and MAP2K1 wild-type and MET not amplified status on ctDNA at the time of study entry.

Read the detailed description

This is a proof-of-concept, multicenter, open-label, single arm one-stage phase II trial of a ctDNA-guided retreatment with encorafenib plus cetuximab for mCRC patients bearing the BRAFV600E mutation and with the key following characteristics:

  • initial benefit and then secondary resistance to a previous exposure to encorafenib and cetuximab with or without chemotherapy;
  • only one subsequent intervening anti-BRAF and anti-EGFR-free line of therapy;
  • confirmed BRAFV600E mutated status and no detectable mutations in KRAS, NRAS, MAP2K1 and no amplification of MET in ctDNA at the time of retreatment;

Eligible patients will receive Encorafenib 300 mg once daily (four 75 mg oral capsules) and Cetuximab 500 mg/sqm iv infusion every 14 days.Treatment will be delivered in 28-day cycles until disease progression, unacceptable toxic effects, withdrawal of consent, initiation of subsequent anticancer therapy, or death.

Being tested
Cetuximab, Encorafenib
Keywords
ctDNA, Encorafenib, Cetuximab, rechallenge, retreatment, BRAF V600E
Medical subject headings
Colorectal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CetuximabDrug

    500 mg/sqm intravenous infusion over 120-minute at cycle 1 (if well tolerated, it is administered over 90 minutes at second administration, and over 60 minutes by the third administration) every 14 days.

  • EncorafenibDrug

    300 mg once daily (four 75 mg oral capsules).

Study groups in NCT06578559
Study groupRoleWhat they receive
Encorafenib + CetuximabExperimentalNot described
Receives: Drug: Cetuximab; Drug: Encorafenib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Objective Response Rate (ORR)

    The percentage of patients, relative to the total of enrolled subjects, achieving a complete (CR) or partial (PR) response, according to RECIST 1.1 criteria. The determination of clinical response will be based on investigator-reported measurements.

    Responses will be evaluated with a total body computed tomography (CT) scan every 8 weeks.

    Measured: 8 months after the enrollment of the last patient.

Secondary outcomes (12)
  1. Progression Free Survival (PFS)

    The time interval computed from the date of study enrollment to the date of objective progression according to the RECIST criteria (version 1.1) or death, whatever comes first.

    Patients alive and free of progression prior to the analysis cut-off date are censored at the date of the last disease assessment.

    Measured: 8 months after the enrollment of the last patient.

  2. Overall Survival (OS)

    The time from the date of study enrollment to the date of death due to any cause. For patients still alive at the time of analysis, the OS time will be censored on the last date the patients were known to be alive.

    Measured: 8 months after the enrollment of the last patient.

  3. Overall Toxicity Rate

    The percentage of patients, relative to the total of enrolled subjects, experiencing any adverse event, according to National Cancer Institute Common Toxicity Criteria (CTCAE version 5.0).

    The CTCAE are classified as Grades 1 to 5 (from milder to more severe symptoms).

    Measured: 8 months after the enrollment of the last patient.

  4. Grade 3/4 Toxicity Rate

    The percentage of patients, relative to the total of enrolled subjects, experiencing a specific adverse event of grade 3/4, according to National Cancer Institute Common Toxicity Criteria (CTCAE version 5.0).

    The CTCAE are classified as Grades 1 to 5 (from milder to more severe symptoms).

    Measured: 8 months after the enrollment of the last patient.

  5. Early Objective Response Rate (EORR)

    The percentage of patients, relative to the total of the enrolled subjects, achieving at least a 20% decrease in the sum of diameters of RECIST target lesions at week 8 compared to baseline.

    Measured: 8 months after the enrollment of the last patient.

  6. Depth of Response (DpR)

    The relative change in the sum of longest diameters of RECIST target lesions at the nadir, in the absence of new lesions or progression of non-target lesions, when compared with baseline.

    Measured: 8 months after the enrollment of the last patient.

  7. Objective Response Rate in the screening failure population (ORR-failure)

    Best objective response according to RECIST 1.1 criteria of the first line after ctDNA screening failure, if administered.

    Measured: 8 months after the enrollment of the last patient.

  8. Progression Free Survival in the screening failure population (PFS-failure)

    The time interval computed from the start of the first treatment after ctDNA screening failure, if delivered, to the date of objective progression according to the RECIST criteria (version 1.1) or death, whichever comes first.

    Measured: 8 months after the enrollment of the last patient.

  9. Overall Survival in the screening failure population (OS-failure)

    The time interval computed from the start of the first treatment after ctDNA screening failure, if delivered, to the date of death due to any cause. For patients still alive at the time of analysis, the OS time will be censored on the last date the patients were known to be alive.

    Measured: 8 months after the enrollment of the last patient.

  10. Quality of Life as assessed by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30).

    The EORTC QLQ-C30 contains functional scales, symptom scales, single items scale and a global health status/QoL scale. Raw scores are standardized and converted into scale scores ranging from 0 to 100.

    Higher scores represent better functioning on the functional scales and a higher level of symptoms on the symptom scales.

    Quality of life will be evaluated for patients who will have completed at least one questionnaire item at baseline and during the study period through descriptive summary statistics.

    Measured: Questionnaires will be administered at baseline (cycle 1 day 1), every 8 weeks thereafter, at disease progression and after 30 days following end of study treatment.

  11. Quality of Life as assessed by the European Organization for Research and Treatment of Cancer Quality of Life Module for Colorectal cancer 29 (EORTC QLQ-CR29).

    The EORTC QLQ-CR29 includes 29 items that evaluate symptoms (gastrointestinal, urinary, pain and others) and functional areas (sexual, body image and others) that are associated with CRC and its treatments.

    There are separate items for patients with and without a stoma and separate items to evaluate the sexual function of men and women. Raw scores are standardized and converted into scale scores ranging from 0 to 100. Higher scores represent better functioning on the functional scales and a higher level of symptoms on the symptom scales.

    Quality of life will be evaluated for patients who will have completed at least one questionnaire item at baseline and during the study period through descriptive summary statistics.

    Measured: Questionnaires will be administered at baseline (cycle 1 day 1), every 8 weeks thereafter, at disease progression and after 30 days following end of study treatment.

  12. Time To Deterioration in Quality of Life (TTD)

    The time from baseline to the first onset of a 10-point or greater decrease from study enrollment for functional scales or a 10-point or greater increase for symptom scales or death.

    Measured: 8 months after the enrollment of the last patient.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Aug 2024
  2. Study start23 Jul 2024
  3. Primary completion12 May 2026
  4. Study completion20 Oct 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06578559
Sponsor's protocol ID
BRICKET
Acronym
BRICKET
Status last verified
Oct 2026
First submitted
29 Jul 2024
Last updated
28 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Cetuximab and Encorafenib in people with Colorectal Cancer, run by Gruppo Oncologico del Nord-Ovest at 13 sites in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 26 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Objective Response Rate (ORR) (time frame: 8 months after the enrollment of the last patient.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Oct 2026.

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