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Active, not recruitingNCT03741101plexifpcUpdated Apr 11, 2024

Treatment of NF1-related Plexiform Neurofibroma With Trametinib

A Phase 2 interventional study of Trametinib in Neurofibromatosis 1, Child and Neurofibroma, Plexiform, sponsored by Region Skane. Active, not recruiting at 1 site in Sweden. Open to participants aged 1 Year to 17 Years. Per ClinicalTrials.gov, last updated 2024-04-11.

Sponsored by Region Skane · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jul 2024, 2 years 3 months ago, but the record still lists the study as active, not recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
1 Year to 17 Years
Sex
All
01

Study summary

This trial, Treatment of NF1-related plexiform neurofibroma with trametinib; a single arm,open-label study with the goals of volumetric partial remission and pain relief (EudraCT 2018-001846-32, Sponsor protocol number BUS2018-1, related Novartis reference number CTMT212ASE01T) is a pediatric clinical trial that investigates the potential use of the drug trametinib (Mekinist®) as treatment for symptomatic or likely to become symptomatic NF1-related plexiform neurofibromas (PN) in children between 1 year and 17 year and 11 months of age.

Trametinib is orally administered qd at 0.025 mg/kg up to a maximum of 2 mg from six years of age and 0.032mg/kilo up to 5 years of age, provided either as tablets or as oral solution. It is manufactured and distributed by Novartis under the trade name Mekinist®.

The primary endpoint is remission of tumor volume ≥20%, evaluated using volumetric MRI at 18 and 30 months of treatment.

The secondary endpoint is reversal of pain from NF1-related PN, evaluated monthly with agespecific pain scales; VAS scale (from 8 years) or Faces Pain Scale (from 3 to 8 years).

As an exploratory measure, the potential effects of the treatment on the cognitive function will be assessed using well-established tests such as WISC-V (age range 6:0 - 16:11), NEPSY-II (age range 3:0-16:11), and CPT-3 (age range 8:0 - adult).

Cognitive dysfunction is well described in patients with NF1, and the MAPK/ERK-pathway has been indicated to be involved in cognition.

02

Conditions studied

  • Neurofibromatosis 1
  • Child
  • Neurofibroma, Plexiform
03

In context

Neurofibromatosis 1

176 studies on the registry are indexed under Neurofibromatosis 1; 43 are open to participants now.

This study's planned enrollment of 15 is below the median of 35 across 114 interventional studies indexed under Neurofibromatosis 1.

Browse Neurofibromatosis 1 studies →

Lead sponsor

Region Skane is the lead sponsor of 386 studies on the registry; 122 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Year to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • NF1-related PN with severe - or with high suspicion of becoming severe - manifestations
  • provided
  • Age 1:0-17:11

Exclusion criteria

Exclusion Criteria

  • NF1-related PN does not fulfill characteristics for acceptable volumetric MRI assessments as outlined under Criteria for volumetric assessment.
  • Lactating or pregnant females. Sexually active females, who do not (agree to) use safe or adhere to regular controls during study. Sexually active males who do not (agree to) use a condom during coitus.
  • A history of other than classic NF1-related WHO grade 1 tumors (i.e. PN or optic pathway glioma).
  • A history of NF-1 related cerebral vascular anomalies (such as Moyamoya).
  • Active pharmaceutical therapy for optic pathway malignancy/ies.
  • Any medication for treatment of left ventricular systolic dysfunction.
  • Use of any drug within 30 days of the first dose of this study treatment.
  • Impaired renal function ( under 45 ml/min/1,73m2 - It is only required to analyze eGFR if creatine is above institutional reference value for corresponding age group).
  • A known immediate or delayed reaction or idiosyncrasy to drugs chemically related to the study drug or that contraindicate their participation.
  • Active liver or biliary disease or moderate or severe liver impairment. If there are signs of liver disease (such as an increased or elevated transaminases),grading of the liver impairment has to be done in consultation with a hepatologist, since there is no universal definition.
  • A history of hepatic sinusoid obstructive syndrome (venoocclusive disease) within the last 3 months.
  • A history of heparin-induced thrombocytopenia.
  • A history of interstitial lung disease or pneumonitis.
  • A history of retinal vein occlusion (RVO).
  • A history of Virus (HBV), or Virus (HCV) infection. Subjects with a confirmed cleared HBV and HCV infection may be enrolled.
  • Presence of a condition that will interfere significantly with the absorption of drugs.
  • Evidence of cardiovascular risk, such as (LVEF) below the lower limit of normal (LLN), a -interval (Qtc) >480 milliseconds, uncontrolled arrhythmia, congestive heart failure, or acute coronary syndrome or history thereof.
Terms in these criteria, in plain language(13)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (estimated)

Study arms

  • Experimental
    single arm study

    children treated with trametinib

    Drug: Trametinib

Interventions

06

What researchers measure

Primary outcomes

  1. Remission of tumor volume ≥20%

    Final and primary analysis of primary outcome measure - of pooled data at 30 months (end of study) with volumetric mri of tumor volume versus volume at enrolment.

    Time frame: 0 - 30 months.

  2. Remission of tumor volume ≥20%

    Interim analysis of pooled data at 18 months with volumetric mri of tumor volume versus volume at enrolment. This is an interim analysis of primary outcome and not primary analysis of primary outcome".

    Time frame: 0 - 18 months

Secondary outcomes

  1. Reversal of NF1-related PN elicited - VAS scale pain

    Evaluated with monthly VAS pain scale from 8 years at enrolment. Monthly. 0-10 point scale. Descriptive. Analysis of pooled data after month 30.

    Time frame: 0 - 30 months.

  2. Reversal of NF1-related PN elicited pain - Faces Pain Scale

    Evaluated with monthly Faces Pain Scale from under 8 years at enrolment. Monthly. 0-10 scale. Descriptive. Analysis of pooled data after month 30.

    Time frame: 0 - 30 months.

Other outcomes

  1. Cognitive performance. Exploratory. WISC V.

    Change of full scale IQ or primary indexes of WISC V. Pooled data after 18 months versus before/at enrolment; with p-value \<0.05.

    Time frame: 0-18 months.

  2. Cognitive performance. Exploratory. NEPSYII.

    Change of Learning and Memory functions and visuospatial functions, pooled data after 18 months versus before/at enrolment (selected test from NEPSYII,; with p-value \<0.05.

    Time frame: 0-18 months.

  3. Cognitive performance. Exploratory. CPT3.

    Change in attention, pooled data after 18 months versus before/at enrolment (CPT-3); with p-value \<0.05.

    Time frame: 0-18 months.

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 11, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03741101
Lead sponsor
Region Skane
Collaborators
Novartis
Responsible party
Sponsor
First posted
Nov 14, 2018
Start date
Jun 10, 2019
Primary completion
Jul 15, 2024 (estimated)
Completion
Dec 15, 2024 (estimated)
Last update
Apr 11, 2024

Study contacts

Björn Sigurdsson
principal investigator · Skane University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Apr 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Trametinib

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