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MelanomaPhase 2NCT04417621

Study of Efficacy and Safety of LXH254 Combinations in Patients With Previously Treated Unresectable or Metastatic Melanoma

A Phase 2 study testing LXH254, LTT462 and Trametinib in people with Melanoma, run by Novartis Pharmaceuticals at 36 sites in 12 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The primary purpose of this study is to evaluate the efficacy of LXH254 combinations in previously treated unresectable or metastatic melanoma Read more about this study

Who is it for?
Ages 12 to 120 years
Conditions the study is for
Melanoma
What is being tested?
LXH254, LTT462 and Trametinib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
134 participants
Where
36 sitesin 12 countries
Study dates
30 Oct 2020to 2 Feb 2027
Phase
Phase 2
Are there results?
Not yet: the study is under way

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 12 to 120 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Male or female must be ≥ 12 years For adolescents only (12-17 years): body weight > 40kg Histologically confirmed unresectable or metastatic cutaneous melanoma
  • Previously treated for unresectable or metastatic melanoma:
  • Participants with NRAS mutation:
  • Participants must have received prior systemic therapy for unresectable or metastatic melanoma with checkpoint inhibitors (CPI), either an anti-PD-1/PD-L1 as a single agent or in combination with anti-CTLA-4, investigational agents, chemotherapy or locally directed anti-neoplastic agents.
  • A maximum of two prior lines of systemic CPI-containing immunotherapy for unresectable or metastatic melanoma are allowed. Additional agents administered with CPI are permitted.
  • To rule out pseudo-progression, participants must have documented confirmed progressive disease as per RECIST v1.1 while on/after treatment with checkpoint inhibitor therapy. Confirmation is not required for patients who remained on treatment for >6 months.
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  • Participants with BRAFV600 mutant disease:
  • Participants must have received prior systemic therapy for unresectable or metastatic melanoma with checkpoint inhibitors (CPI), either an anti-PD-1/PD-L1 as a single agent or in combination with anti-CTLA-4, investigational agents, chemotherapy or locally directed anti-neoplastic agents. Additionally, participants must have received targeted therapy with a RAFi as a single agent or in combination with a MEKi (+/- CPI allowed) as the last prior therapy.
  • A maximum of two prior lines of systemic CPI-containing immunotherapy for unresectable or metastatic melanoma are allowed. Additional agents with CPI are permitted.
  • A maximum of one line of targeted therapy is allowed, and it must be the most recent line of therapy.
  • Participants must have documented progressive disease as per RECIST v1.1 while on/after treatment with targeted therapy.
  • Other protocol-defined inclusion criteria may apply.

Who cannot join

  • Treatment with any of the following anti-cancer therapies prior to the first dose of study treatment within the stated timeframes:
  • ≤ 4 weeks for radiation therapy or ≤ 2 weeks for limited field radiation for palliation prior to the first dose of study treatment.
  • ≤ 2 weeks for small molecule therapeutics.
  • ≤ 4 weeks for any immunotherapy treatment including immune checkpoint inhibitors.
  • ≤ 4 weeks for chemotherapy agents, locally directed anti-neoplastic agents, or other investigational agents.
  • ≤ 6 weeks for cytotoxic agents with major delayed toxicities, such as nitrosourea and mitomycin c.
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  • Participants participating in additional parallel investigational drug or medical device studies.
  • All primary central nervous system (CNS) tumors or symptomatic CNS metastases that are neurologically unstable History or current evidence of retinal vein occlusion (RVO) or current risk factors for RVO (e.g. uncontrolled glaucoma or ocular hypertension, history of hyperviscosity or hypercoagulability syndromes).
  • 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.
  • Other protocol-defined exclusion criteria may apply

Trial locations and contacts

36 sites in 12 countries.

36 sites in 12 countries

United States12 sites
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • Dana Farber Cancer Institute

    Boston, Massachusetts, 02215

  • Florida Cancer Specialists

    Fort Myers, Florida, 33901

  • Univ of TX MD Anderson Cancer Cntr

    Houston, Texas, 77030

  • The Angeles Clinic and Research Institute

    Los Angeles, California, 90025

  • NYU Laura and Isaac Perlmutter Cancer Center

    New York, New York, 10016

  • Memorial Sloan Kettering

    New York, New York, 10017

  • University of Pittsburgh Med Center

    Pittsburgh, Pennsylvania, 15213

  • Mayo Clinic Mayo Rochester

    Rochester, Minnesota, 55905

  • Mayo Clinic Rochester

    Rochester, Minnesota, 55905

  • UCSF Medical Center

    San Francisco, California, 94143

  • H Lee Moffitt Cancer Center and Research Institute

    Tampa, Florida, 33612

Other trials in United States

France6 sites
  • Novartis Investigative Site

    Lille, 59037

  • Novartis Investigative Site

    Marseille, 13885

  • Novartis Investigative Site

    Paris, 75475

  • Novartis Investigative Site

    Pierre-Bénite, 69495

  • Novartis Investigative Site

    Toulouse, 31059

  • Novartis Investigative Site

    Villejuif, 94800

Other trials in France

Germany4 sites
  • Novartis Investigative Site

    Dresden, Saxony, 01307

  • Novartis Investigative Site

    Essen, 45147

  • Novartis Investigative Site

    Heidelberg, 69120

  • Novartis Investigative Site

    Tübingen, 72076

Other trials in Germany

Australia3 sites
  • Novartis Investigative Site

    North Sydney, New South Wales, 2060

  • Novartis Investigative Site

    Subiaco, Western Australia, 6008

  • Novartis Investigative Site

    Wooloongabba, Queensland, 4102

Other trials in Australia

Belgium2 sites
  • Novartis Investigative Site

    Leuven, 3000

  • Novartis Investigative Site

    Wilrijk, 2610

Other trials in Belgium

Italy2 sites
  • Novartis Investigative Site

    Milan, MI, 20133

  • Novartis Investigative Site

    Naples, 80131

Other trials in Italy

Switzerland2 sites
  • Novartis Investigative Site

    Lausanne, 1011

  • Novartis Investigative Site

    Zurich, 8091

Other trials in Switzerland

Argentina1 site
  • Novartis Investigative Site

    CABA, Buenos Aires, C1426ANZ

Other trials in Argentina

Israel1 site
  • Novartis Investigative Site

    Ramat Gan, 5265601

Other trials in Israel

Netherlands1 site
  • Novartis Investigative Site

    Maastricht, Limburg, 6229 HX

Other trials in Netherlands

Norway1 site
  • Novartis Investigative Site

    Oslo, 0310

Other trials in Norway

United Kingdom1 site
  • Novartis Investigative Site

    Manchester, M20 2BX

Other trials in United Kingdom

About this study

Official title: A Randomized, Open-label, Multi-arm, Two-part, Phase II Study to Assess Efficacy and Safety of Multiple LXH254 Combinations in Patients With Previously Treated Unresectable or Metastatic BRAFV600 or NRAS Mutant Melanoma

The primary purpose of this study is to evaluate the efficacy of LXH254 combinations in previously treated unresectable or metastatic melanoma

Conditions
Melanoma
Being tested
LXH254, LTT462, Trametinib, Ribociclib
Keywords
LXH254, Melanoma, NRAS, BRAF, LTT462, Trametinib, Ribocliclib
Medical subject headings
Melanoma

What participants receive

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

  • LXH254Drug

    LXH254 will be supplied as tablet for oral use.

  • LTT462Drug

    LTT462 will be supplied as hard gelatin capsule for oral use.

  • TrametinibDrug

    Trametinib will be supplied as film-coated tablet for oral use

  • RibociclibDrug

    Ribociclib will be supplied in tablets and hard gelatin capsules.

Study groups in NCT04417621
Study groupRoleWhat they receive
LXH254 + LTT462ExperimentalNot described
Receives: Drug: LXH254; Drug: LTT462
LXH254 + trametinibExperimentalNot described
Receives: Drug: Trametinib
LXH254 + ribociclibExperimentalNot described
Receives: Drug: Ribociclib

What is being measured

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

  1. Overall Response Rate

    Confirmed ORR using RECIST v1.1, per local assessment

    Measured: 35 months

Secondary outcomes (13)
  1. Duration of Reposnse (DOR)

    Local and central assessment

    Measured: 4 years

  2. Progression Free Survival (PFS)

    Measured: 4 years

  3. Disease Control Rate (DCR)

    Using RECIST v1.1, per local and central assessment

    Measured: 3 years

  4. Overall Survival (OS)

    Measured: 4 years

  5. Derived PK parameter (Cmax) for LXH254 & LTT462

    Measured: Up to 5 months

  6. Derived PK parameter (Cmax) for LXH254 & trametinib

    Measured: Up to 5 months

  7. Derived PK parameter (Cmax) for LXH254 & ribociclib

    Measured: Up to 5 months

  8. Derived PK parameter (AUC) for LXH254 & LTT462

    Measured: Up to 5 months

  9. Derived PK parameter (AUC) for LXH254 & trametinib

    Measured: Up to 5 months

  10. Derived PK parameter (AUC) for LXH254 & ribociclib

    Measured: Up to 5 months

  11. Incidence of adverse events (AEs) and serious adverse events (SAEs)

    Number of participants with Adverse Events (AEs) and SAEs as a measure of safety and tolerability

    Measured: 35 months

  12. Dose Interruptions

    Tolerability measured by the number of subjects who have interruptions of study treatment and reason for interruptions

    Measured: 35 months

  13. Dose reductions

    Tolerability measured by the number of subjects who have reductions of study treatment and reason for reductions

    Measured: 35 months

Timeline

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

  1. First posted4 Jun 2020
  2. Study start30 Oct 2020
  3. Primary completion2 Feb 2027 (estimated)
  4. Study completion2 Feb 2027 (estimated)

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
134 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04417621
Sponsor's protocol ID
CLXH254C12201
Other IDs
2020-000873-26
Status last verified
Mar 2026
First submitted
3 Jun 2020
Last updated
12 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com.

Publications

  • Moschos SJ. War against NRAS-Mutant Melanoma Using Targeted Therapies Remains Challenging. Clin Cancer Res. 2022 Jul 15;28(14):2977-2979. doi: 10.1158/1078-0432.CCR-22-1256.

    PubMed 35587446

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing LXH254, LTT462 and Trametinib in people with Melanoma, run by Novartis Pharmaceuticals at 36 sites in 12 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 12 inclusion and 10 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: under way, not looking for participants, as of the sponsor's last update on 12 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 36 sites in United States, France, Germany, Australia, Belgium and 7 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 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?

This study is still under way. Results are not available in the source record yet.

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?

Overall Response Rate (time frame: 35 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04417621, which also lists 1 linked publication.

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 12 Mar 2026.

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