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BRAF V600 Colorectal CancerPhase 1NCT04294160

A Study of Select Drug Combinations in Adult Patients With Advanced/Metastatic BRAF V600 Colorectal Cancer

A Phase 1 study testing Dabrafenib, LTT462 and Trametinib in people with BRAF V600 Colorectal Cancer, run by Novartis Pharmaceuticals at 18 sites in 10 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

A phase Ib, open-label platform study of select drug combinations chosen in order to characterize safety and tolerability of each treatment arm tested and to identify recommended doses and regimens for future studies. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
BRAF V600 Colorectal Cancer
What is being tested?
Dabrafenib, LTT462 and Trametinib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
122 participants
Where
18 sitesin 10 countries
Study dates
22 Jul 2020to 25 Sep 2024
Phase
Phase 1
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

  • Patients must have a site of disease amenable to biopsy, and be a candidate for tumor biopsy according to the treating institution's guidelines. Patients must be willing to undergo a new tumor biopsy at baseline and during on study therapy. Exceptions may be considered after documented discussion with Novartis.
  • All patients must have a BRAF V600 mutation confirmed by local assessment.
  • Patients with unresectable advanced/metastatic BRAF V600 cancer of the colon or rectum with measurable disease as determined by RECIST v1.1
  • Patients must have documented disease progression following, or are intolerant to, 1 or 2 lines of chemotherapy for advanced/metastatic disease

Who cannot join

  • Has a known additional malignancy that is progressing or requires active treatment. Exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy, or in-situ cervical cancer, or other tumors that will not affect life expectancy
  • Impairment of gastrointestinal function or gastrointestinal disease that may signficantly alter the absorption of study drugs
  • History of or current evidence/risk of retinal verin occlusion or serous retinopathy
  • History of or current interstitial lung disease or non-infectious pneumonitis
  • Patients with a known history of testing positive for HIV
  • Clinically significant cardiac disease at screening
Show all 9Show fewer
  • Any medical condition that would, in the investigator's judgment, prevent the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures.
  • Pregnant or lactating women
  • Other protocol-defined inclusion/exclusion may apply.

Trial locations and contacts

18 sites in 10 countries.

18 sites in 10 countries

United States4 sites
  • Massachusetts General Hospital Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • Uni Of TX MD Anderson Cancer Cntr

    Houston, Texas, 77030

  • University of California LA Santa Monica Location

    Los Angeles, California, 90095

  • Sarah Cannon Research Institute SC

    Nashville, Tennessee, 37203

Other trials in United States

Germany3 sites
  • Novartis Investigative Site

    Dresden, 01307

  • Novartis Investigative Site

    Essen, 45147

  • Novartis Investigative Site

    Ulm, 89081

Other trials in Germany

Spain3 sites
  • Novartis Investigative Site

    Barcelona, Catalonia, 08035

  • Novartis Investigative Site

    Madrid, 28009

  • Novartis Investigative Site

    Valencia, Valencia, 46010

Other trials in Spain

Belgium2 sites
  • Novartis Investigative Site

    Brussels, 1000

  • Novartis Investigative Site

    Leuven, 3000

Other trials in Belgium

Australia1 site
  • Novartis Investigative Site

    Westmead, New South Wales, 2145

Other trials in Australia

Canada1 site
  • Novartis Investigative Site

    Toronto, Ontario, M5G 2M9

Other trials in Canada

Israel1 site
  • Novartis Investigative Site

    Tel Aviv, 6423906

Other trials in Israel

Netherlands1 site
  • Novartis Investigative Site

    Zoetermeer, NL-2722 EP

Other trials in Netherlands

Singapore1 site
  • Novartis Investigative Site

    Singapore, 119228

Other trials in Singapore

United Kingdom1 site
  • Novartis Investigative Site

    Manchester, M20 2BX

Other trials in United Kingdom

About this study

Official title: A Phase Ib, Multicenter, Open-label Dose Escalation and Expansion Platform Study of Select Drug Combinations in Adult Patients With Advanced or Metastatic BRAF V600 Colorectal Cancer

A phase Ib, open-label platform study of select drug combinations chosen in order to characterize safety and tolerability of each treatment arm tested and to identify recommended doses and regimens for future studies.

Read the detailed description

This is a phase Ib, multi-center, open-label study with multiple treatment arms in adult patients with advanced or metastatic BRAF V600 (E, D, or K) in order to characterize safety and tolerability of each treatment arm tested and to identify recommended doses and regimens for future studies. The open platform design of this study is adaptive to allow removal of combination treatment arm(s) based on emerging data and facilitate introduction of new candidate combinations. The study is comprised of a dose escalation part and may be followed by a dose expansion part for any combination treatment arm.

Being tested
Dabrafenib, LTT462, Trametinib, LXH254, TNO155
Keywords
Phase Ib, BRAF-mutated, BRAF V600E, BRAF V600D, BRAF V600K, colorectal cancer, colon cancer, rectal cancer, metastatic, BLRM with EWOC
Medical subject headings
Colorectal Neoplasms, Colonic Neoplasms, Rectal Neoplasms, Neoplasm Metastasis

What participants receive

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

  • DabrafenibDrug

    Also called DRB436, Tafinlar

    Capsule for oral use

  • LTT462Drug

    Capsule for oral use

  • TrametinibDrug

    Also called TMT212, Mekinist

    Tablet for oral use

  • LXH254Drug

    Tablet for oral use

  • TNO155Drug

    Capsule for oral use

  • SpartalizumabBiological

    Also called PDR001

    Liquid in vial (Concentrate for solution for infusion) for intravenous use

  • TislelizumabBiological

    Also called VDT482, BGBA317

    Liquid in vial (Concentrate for solution for infusion) for intravenous use

Study groups in NCT04294160
Study groupRoleWhat they receive
Dabrafenib + LTT462 backbone arm 1Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer
Receives: Drug: Dabrafenib; Drug: LTT462
Dabrafenib + LTT462 + trametinib triplet arm 1Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer
Receives: Drug: Dabrafenib; Drug: LTT462; Drug: Trametinib
Dabrafenib + LTT462 + LXH254 triplet arm 2Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer - Arm is closed for further enrollment.
Receives: Drug: Dabrafenib; Drug: LTT462; Drug: LXH254
Dabrafenib + LTT462 + TNO155 triplet arm 3Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer
Receives: Drug: Dabrafenib; Drug: LTT462; Drug: TNO155
Dabrafenib + LTT462 + spartalizumab triplet arm 4Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer - Arm is closed for further enrollment.
Receives: Drug: Dabrafenib; Drug: LTT462; Biological: Spartalizumab
Dabrafenib + trametinib + TNO155 triplet arm 5Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer
Receives: Drug: Dabrafenib; Drug: Trametinib; Drug: TNO155
Dabrafenib + LTT462 + Tislelizumab triplet arm 6Experimentaldose escalation to determine maximum tolerated dose (MTD)/ Recommended dose (RD) in adult patients with advanced or metastatic BRAF V600 colorectal cancer
Receives: Drug: Dabrafenib; Drug: LTT462; Biological: Tislelizumab

What is being measured

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

  1. Incidence and nature of dose limiting toxicities (DLTs) in the first cycle

    To characterize safety and tolerability of each treatment arm tested and identify recommended doses (RD) and regimens for future studies

    Measured: 30 months

  2. Incidence and severity of AEs and SAEs, including changes in laboratory values, vital signs, and ECGs

    To characterize safety and tolerability of each treatment arm tested and identify recommended doses and regimens for future studies

    Measured: 34 months

  3. Frequency of dose interruptions

    To characterize safety and tolerability of each treatment arm tested and identify recommended doses and regimens for future studies

    Measured: 30 months

  4. Frequency of dose reductions

    To characterize safety and tolerability of each treatment arm tested and identify recommended doses and regimens for future studies

    Measured: 30 months

  5. Dose intensity

    To characterize safety and tolerability of each treatment arm tested and identify recommended doses and regimens for future studies

    Measured: 30 months

Secondary outcomes (10)
  1. AUClast derived from Serum/plasma concentration of individual investigational drugs within combination treatments

    To characterize the PK of each investigational drug within each treatment arm

    Measured: 30 months

  2. Best overall response (BOR)

    To evaluate preliminary anti-tumor activity of each treatment arm per RECIST v1.1.

    Measured: 34 months

  3. Progression free survival (PFS)

    To evaluate preliminary anti-tumor activity of each treatment arm per RECIST v1.1.

    Measured: 34 months

  4. Overall response rate (ORR)

    To evaluate preliminary anti-tumor activity of each treatment arm per RECIST v1.1.

    Measured: 34 months

  5. Duration of response (DOR)

    To evaluate preliminary anti-tumor activity of each treatment arm per RECIST v1.1.

    Measured: 34 months

  6. Disease control rate (DCR)

    To evaluate preliminary anti-tumor activity of each treatment arm per RECIST v1.1.

    Measured: 34 months

  7. Change from baseline of the PD marker DUSP6 in tumor tissue (dose escalation only)

    To evaluate PD effect in their respective combinations in tumor

    Measured: 30 months

  8. AUCtau derived from Serum/plasma concentration of individual investigational drugs within combination treatments

    To characterize the PK of each investigational drug within each treatment arm

    Measured: 30 months

  9. Cmax derived from Serum/plasma concentration of individual investigational drugs within combination treatments

    To characterize the PK of each investigational drug within each treatment arm

    Measured: 30 months

  10. Tmax derived from Serum/plasma concentration of individual investigational drugs within combination treatments

    To characterize the PK of each investigational drug within each treatment arm

    Measured: 30 months

Timeline

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

  1. First posted3 Mar 2020
  2. Study start22 Jul 2020
  3. Primary completion25 Sep 2024
  4. Study completion25 Sep 2024

Why it stopped: The decision of early termination was made due to business reasons, and was not based on any safety concerns for any of the treatment combinations.

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 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
122 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04294160
Sponsor's protocol ID
CADPT01C12101
Status last verified
Dec 2025
First submitted
2 Mar 2020
Last updated
24 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Dabrafenib, LTT462 and Trametinib in people with BRAF V600 Colorectal Cancer, run by Novartis Pharmaceuticals at 18 sites in 10 countries.

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 4 inclusion and 9 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: stopped early, as of the sponsor's last update on 24 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites in United States, Germany, Spain, Belgium, Australia and 5 more countries. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 was stopped early (reason given: The decision of early termination was made due to business reasons, and was not based on any safety concerns for any of the treatment combinations.). Results are not available in the source record.

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?

Incidence and nature of dose limiting toxicities (DLTs) in the first cycle (time frame: 30 months). The study lists 5 primary outcomes in all. 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 24 Dec 2025.

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