Primary Malignant Peripheral Nerve Sheath TumorsEarly Phase 1NCT06693284
A Window of Opportunity Trial of Mirdametinib Plus Vorinostat for NF1 Associated, H3K27 Trimethylation Deficient Malignant Peripheral Nerve Sheath Tumor [MPNST]
A Early Phase 1 study testing mirdametinib and vorinostat in people with Primary Malignant Peripheral Nerve Sheath Tumors, run by University of Minnesota at 1 site in United States.
Trial summary
This is a single center Phase 0 "window of opportunity" trial for the treatment of newly diagnosed, PRC2 deficient, primary malignant peripheral nerve sheath tumors (MPNSTs) with a short course of the combination of mirdametinib and vorinostat prior to the most appropriate standard of care treatment for their specific… Read more about this study
- Who is it for?
- Ages 12 years and older
- Conditions the study is for
- Primary Malignant Peripheral Nerve Sheath Tumors
- What is being tested?
- mirdametinib and vorinostat
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 8 participants
- Where
- 1 siteUnited States
- Study dates
- 20 Nov 2025to 1 Jan 2027
- Phase
- Early Phase 1
- 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 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Known Neurofibromatosis type 1 (NF-1) syndrome based on current diagnostic criteria.
- Diagnosis of suspected MPNST by PET or MRI imaging
- Confirmation of histone H3 lysine 27 trimethylation-negative MPSNT by immunohistochemistry
- Twelve years of age or older
- Complete blood count (CBC), platelet, liver and kidney function within institutional normal limits performed within 14 days of 1 st dose of study drug.
- Must be able to swallow capsules.
- Females of childbearing potential must use highly effective contraception (see inclusion criteria section) from the time of study enrollment through 6 months after the last dose of vorinostat and mirdametinib. Males with partners of childbearing potential must use highly effective contraception from the time of study enrollment through 3 months after the last dose of vorinostat.
- Provides voluntary written consent prior to any study related activities, with parental/guardian consent and assent for those 12 to 17 years of age at enrollment.
Who cannot join
- Pregnant or breastfeeding - females of childbearing potential must have a negative pregnancy test (serum or urine) within 7 days prior to the 1 st dose of the study drugs.
- Significant cardiac disease
- Significant eye disease
- Radiation therapy or chemotherapy in the past year.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
University of Minnesota
Minneapolis, Minnesota, 55414
Allison Fullenkamp, 612-625-6125, fulle631@umn.edu
About this study
This is a single center Phase 0 "window of opportunity" trial for the treatment of newly diagnosed, PRC2 deficient, primary malignant peripheral nerve sheath tumors (MPNSTs) with a short course of the combination of mirdametinib and vorinostat prior to the most appropriate standard of care treatment for their specific tumor (typically localized radiation followed by surgical resection). Four to eight patients, 12 years of age or older and meeting the study's biomarker inclusion criteria, would be enrolled onto this trial. After voluntary written consent (assent with parent consent for minors) the patient undergoes MRI and PET imaging of the tumor and a needle biopsy to collect tumor is performed. Patients with histone H3K27 trimethylation deficient MPNST, as confirmed by immunohistochemistry, receive a single 28-day course of mirdametinib and vorinostat at standard oral dosing for each. At day 26, 27, or 28 the patient returns to clinic for a research visit repeating the baseline MRI and PET imaging and the needle biopsy for tumor tissue.
This ends direct study participation. The patient goes on to the most appropriate standard of care treatment for their MPNST. Information about the subsequent standard of care treatment is collected for the purposes of this study.
- Being tested
- mirdametinib and vorinostat
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
mirdametinib and vorinostatDrug
short course of the combination of mirdametinib and vorinostat prior to the most appropriate standard of care treatment for the patient's specific tumor (typically localized radiation followed by surgical resection).
| Study group | Role | What they receive |
|---|---|---|
| Experimental group | Experimental | newly diagnosed, PRC2 deficient, primary malignant peripheral nerve sheath tumors (MPNSTs) Receives: Drug: mirdametinib and vorinostat |
What is being measured
The primary outcome is the main question the study is designed to answer.
Assess the toxicity of the combination of mirdametinib and vorinostat in patients with NF1-associated high grade MPNSTs.
As a result of the vaccine, both unique CNS toxicity and edema have been previously observed as soon as 10 days from the initiation of therapy. Neurotoxicity ≤ Grade 3 is an expected risk of this treatment. This will be measured as the number of participants experiencing this adverse event.
Measured: 48 months
Determine the response of therapeutic targets
measuring phospho-ERK and histone H3K27 acetylation in post-therapy tumor tissue as compared to pre-treatment tumor tissue.
Measured: 48 months
Evaluate the utility of radiographic response to this regimen
using MRI and PET.
Each patient will undergo MRI of the primary lesion and CT/PET scan for staging and assessment of FDG uptake in the tumor at diagnosis and after completing 28 days of therapy with mirdametinib and vorinostat. Each patient will have a diagnostic tumor biopsy performed as a condition of entry into the study and to measure specific molecular tumor markers. A second biopsy will be performed at the completion of protocol therapy to assess tumor response to the therapy and to see if the specific tumor markers have changed as a result of the therapy given.
Measured: 48 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Nov 2024
- Study start20 Nov 2025
- Primary completion1 Jan 2027 (estimated)
- Study completion1 Jan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Primary Malignant Peripheral Nerve Sheath TumorsStudies of the same condition, open and under way.
- More trials run by University of MinnesotaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Early Phase 1
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 8 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Minnesota
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Robert Galvin, MD, Principal investigator, University of Minnesota
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06693284
- Sponsor's protocol ID
- 2022LS040
- Status last verified
- May 2026
- First submitted
- 17 Oct 2024
- Last updated
- 29 May 2026
- Results posted
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Window of Opportunity Trial of Mirdametinib Plus Vorinostat for NF1 Associated, H3K27 Trimethylation Deficient Malignant Peripheral Nerve Sheath Tumor [MPNST]
- ClinicalTrials.gov ID
- NCT06693284
- Acronym / sponsor ID
- 2022LS040
- Phase
- Early Phase 1
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 8 participants (estimated)
- Lead sponsor
- University of MinnesotaUniversity, hospital or other
- Study start
- 20 Nov 2025 (actual)
- Primary completion
- 1 Jan 2027 (estimated)
- Study completion
- 1 Jan 2027 (estimated)
- First posted
- 18 Nov 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a single center Phase 0 "window of opportunity" trial for the treatment of newly diagnosed, PRC2 deficient, primary malignant peripheral nerve sheath tumors (MPNSTs) with a short course of the combination of mirdametinib and vorinostat prior to the most appropriate standard of care treatment for their specific tumor (typically localized radiation followed by surgical resection). Four to eight patients, 12 years of age or older and meeting the study's biomarker inclusion criteria, would be enrolled onto this trial. After voluntary written consent (assent with parent consent for minors) the patient undergoes MRI and PET imaging of the tumor and a needle biopsy to collect tumor is performed. Patients with histone H3K27 trimethylation deficient MPNST, as confirmed by immunohistochemistry, receive a single 28-day course of mirdametinib and vorinostat at standard oral dosing for each. At day 26, 27, or 28 the patient returns to clinic for a research visit repeating the baseline MRI and PET imaging and the needle biopsy for tumor tissue.
This ends direct study participation. The patient goes on to the most appropriate standard of care treatment for their MPNST. Information about the subsequent standard of care treatment is collected for the purposes of this study.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Experimental group | Experimental | Drug: mirdametinib and vorinostatnewly diagnosed, PRC2 deficient, primary malignant peripheral nerve sheath tumors (MPNSTs) |
Who may qualify
- Ages
- 12 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (8 listed)
- Known Neurofibromatosis type 1 (NF-1) syndrome based on current diagnostic criteria.
- Diagnosis of suspected MPNST by PET or MRI imaging
- Confirmation of histone H3 lysine 27 trimethylation-negative MPSNT by immunohistochemistry
- Twelve years of age or older
- Complete blood count (CBC), platelet, liver and kidney function within institutional normal limits performed within 14 days of 1 st dose of study drug.
Key exclusion criteria (4 listed)
- Pregnant or breastfeeding - females of childbearing potential must have a negative pregnancy test (serum or urine) within 7 days prior to the 1 st dose of the study drugs.
- Significant cardiac disease
- Significant eye disease
- Radiation therapy or chemotherapy in the past year.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| mirdametinib and vorinostatshort course of the combination of mirdametinib and vorinostat prior to the most appropriate standard of care treatment for the patient's specific tumor (typically localized radiation followed by surgical resection). | Drug | Experimental group |
Primary outcome
Assess the toxicity of the combination of mirdametinib and vorinostat in patients with NF1-associated high grade MPNSTs.
Time frame: 48 months
As a result of the vaccine, both unique CNS toxicity and edema have been previously observed as soon as 10 days from the initiation of therapy. Neurotoxicity ≤ Grade 3 is an expected risk of this treatment. This will be measured as the number of participants experiencing this adverse event.
Determine the response of therapeutic targets
Time frame: 48 months
measuring phospho-ERK and histone H3K27 acetylation in post-therapy tumor tissue as compared to pre-treatment tumor tissue.
Evaluate the utility of radiographic response to this regimen
Time frame: 48 months
using MRI and PET. Each patient will undergo MRI of the primary lesion and CT/PET scan for staging and assessment of FDG uptake in the tumor at diagnosis and after completing 28 days of therapy with mirdametinib and vorinostat. Each patient will have a diagnostic tumor biopsy performed as a condition of entry into the study and to measure specific molecular tumor markers. A second biopsy will be performed at the completion of protocol therapy to assess tumor response to the therapy and to see if the specific tumor markers have changed as a result of the therapy given.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 May 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Robert Galvin, MD principal investigator
University of Minnesota
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Early Phase 1 study testing mirdametinib and vorinostat in people with Primary Malignant Peripheral Nerve Sheath Tumors, run by University of Minnesota at 1 site in United States.
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 8 inclusion and 4 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: looking for participants now, as of the sponsor's last update on 29 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. 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?
Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.
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?
Contact Allison Fullenkamp (612-625-6125, fulle631@umn.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Assess the toxicity of the combination of mirdametinib and vorinostat in patients with NF1-associated high grade MPNSTs. (time frame: 48 months). The study lists 3 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 29 May 2026.