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MelanomaKitMelNCT01543113

cKIT, BRAF/NRAS Mutations in Advanced Melanoma : Clinical Outcome in Response to Tyrosine-kinase Inhibitors - KitMel Project

A study testing sequencing in people with Melanoma, run by Rennes University Hospital at 2 sites in France.

Completed

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

Official record
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Trial summary

Background: Metastatic melanoma has a devastating prognosis and is one of the top causes of cancer death in young patients. Until now, available therapies were few and unreliable, but recent understanding of melanomas' molecular pathways has improve their classification and new clinical strategies have been proposed. Read more about this study

Who is it for?
Any age
Conditions the study is for
Melanoma
What is being tested?
sequencing
Could I receive a placebo?
No, everyone receives an active treatment
How many people
288 participants
Where
2 sitesFrance
Study dates
Jan 2011to Feb 2014
Phase
Interventional
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • melanoma
  • white caucasian population

Who cannot join

None listed.

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • Centre Eugène Marquis

    Rennes, Brittany Region, 35000

  • Rennes University Hospital

    Rennes, Brittany Region, 35033

Other trials in France

About this study

Background: Metastatic melanoma has a devastating prognosis and is one of the top causes of cancer death in young patients. Until now, available therapies were few and unreliable, but recent understanding of melanomas' molecular pathways has improve their classification and new clinical strategies have been proposed.

Initial studies showed that B-Raf/N-Ras mutations (respectively V600E and Q61) are the most frequent alteration being present in 70 to 80% of melanomas, characterizing non Chronic Sun-induced Damage skins (CSD). These include Superficial Spreading Melanomas (SSM) and Nodular Melanomas (NM). Other studies showed that c-Kit mutations are presently the predominant activating mutation (20 - 40 %) in Acro-Lentiginous Melanomas (ALM), Mucous Melanomas (MM) and in melanomas arising on CSD skin. c-Kit mutation pattern is more complex with four exons being affected leading to different mutations, which incidence and biological impact are less documented.

Read more

BRAF/NRAS genetics alterations drive constantly cell growth, being thus attractive targets. Spectacular results have indeed been obtained with the BRAF inhibitor that targets the V600E BRAF-mutated form. Data from GIST disease revealed that the different c-Kit mutations modulate differently c-Kit function and the response to targeted therapies.

Because c-Kit targeted therapy is a critical clinical issue, the investigators aimed to identify the most frequent mutations present in our population to propose appropriate screening test and adapt the therapy.

Methods: 250 melanoma samples corresponding to an homogeneous white-Caucasian population (Brittany, France) will be screened. c-Kit exons 11, 13, 17 and 18 will be sequenced (direct sequencing and pyrosequencing when possible). c-Kit copy number will be quantified by q-PCR and level of c-Kit determined by immunohistochemistry (IHC, CD117). Samples will also be analyzed for B-Raf mutations in codon 464, 466, 469 and 600, and for N-Ras mutations in codon 12, 13 and 61 (Pyrosequencing).

Expected Results:

Taken together, the investigators anticipate that the present genetic analysis of the tumours from patients with advanced melanoma will first document the type and frequency of cKit mutations, will confirm or not that BRAF, NRAS and cKit mutations are mutually exclusive and document their repartition in the melanomas sub-types. Finally this study will clue researchers in to how well patients will respond to a therapy that targets the growth-promoting proteins BRAF/NRAS and cKIT.

Conditions
Melanoma
Being tested
sequencing
Keywords
melanoma, white-caucasian population
Medical subject headings
Melanoma

What participants receive

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

  • sequencingOther

    sequencing

Study groups in NCT01543113
Study groupRoleWhat they receive
melanomaOthermelanoma
Receives: Other: sequencing

What is being measured

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

  1. c-Kit exons 11, 13, 17 and 18 will be sequenced (direct sequencing and pyrosequencing when possible)

    c-Kit exons 11, 13, 17 and 18 will be sequenced (direct sequencing and pyrosequencing when possible)

    Measured: Day 1

Secondary outcomes (2)
  1. level of c-Kit determined by immunohistochemistry

    level of c-Kit determined by immunohistochemistry

    Measured: Day 1

  2. Samples will also be analyzed for B-Raf mutations in codon 464, 466, 469 and 600, and for N-Ras mutations in codon 12, 13 and 61 (Pyrosequencing).

    Samples will also be analyzed for B-Raf mutations in codon 464, 466, 469 and 600, and for N-Ras mutations in codon 12, 13 and 61 (Pyrosequencing).

    Measured: Day 1

Timeline

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

  1. First posted2 Mar 2012 (estimated)
  2. Study startJan 2011
  3. Primary completionMar 2012
  4. Study completionFeb 2014

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 N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
288 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01543113
Sponsor's protocol ID
LOC/10-16 - KitMel
Other IDs
2010-A01310-39, 10/43-785, 11.272, 911305
Acronym
KitMel
Status last verified
May 2023
First submitted
21 Feb 2012
Last updated
24 May 2023
Results posted
No
Data monitoring committee
No

Publications

  • Pracht M, Mogha A, Lespagnol A, Fautrel A, Mouchet N, Le Gall F, Paumier V, Lefeuvre-Plesse C, Rioux-Leclerc N, Mosser J, Oger E, Adamski H, Galibert MD, Lesimple T. Prognostic and predictive values of oncogenic BRAF, NRAS, c-KIT and MITF in cutaneous and mucous melanoma. J Eur Acad Dermatol Venereol. 2015 Aug;29(8):1530-8. doi: 10.1111/jdv.12910. Epub 2015 Jan 26.

    PubMed 25623140

Questions about this trial

What is this clinical trial studying?

A study testing sequencing in people with Melanoma, run by Rennes University Hospital at 2 sites in France.

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 2 inclusion and 0 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 24 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France. 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.

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?

c-Kit exons 11, 13, 17 and 18 will be sequenced (direct sequencing and pyrosequencing when possible) (time frame: Day 1). 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 NCT01543113, 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 24 May 2023.

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