New pill targets Hard-to-Treat cancers in early trial
NCT ID NCT06326411
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-phase study tests an experimental oral drug called NST-628 in adults with advanced solid tumors that have specific genetic changes in the MAPK pathway. The main goals are to check the drug's safety, find the right dose, and see if it can shrink tumors. About 230 participants who have run out of standard treatment options will take part.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 230 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2024
- Expected to finish
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Nov 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Subjects are eligible to be included in the study only if all of the following criteria apply: 1. Subjects must be ≥18 years old (or of legal age of consent in the country in which the study is taking place) at the time of signing the informed consent. 2. Subjects who have a histologically or cytologically documented metastatic or locally advanced solid tumor, for which standard of care (SoC) therapy does not exist, no longer provides benefit, or is not tolerated by the subject, or the subject has been assessed by the Investigator as not being suitable for SoC therapy. 1. Part A: Subjects with any solid tumor with genetic alteration of or evidence of tumor dependence upon the RAS/MAPK pathway (subject to additional restrictions specified in the study protocol) 2. Part B: Subjects must be diagnosed with one of the following solid tumors harboring specified genetic alterations based on a validated local test: i. Melanoma Cohorts: 1. Activating NRAS mutations 2. Select BRAF alterations ii. Non-Melanoma Cohorts: 1. Solid tumors with NRAS activating mutations 2. Solid tumors with KRAS activating mutations 3. Solid tumors with select BRAF alterations 4. Glioma with BRAF alterations 3. Newly obtained or archived tumor tissue is required 4. Part B: measurable disease as defined by RECIST Version 1.1 or by other disease assessment tool standard for a given tumor type (if RECIST v. 1.1 is not standard) 5. Performance status 1. Solid tumors other than glioma: ECOG 0 or 1 2. Glioma: Karnofsky ≥ 70 and ECOG 0 or 1 6. Have adequate organ function 7. Understand and voluntarily sign an Institutional Review Board/Independent Ethics Committee-approved informed consent form prior to any study-specific evaluation. 8. Life expectancy ≥ 12 weeks Exclusion Criteria: Subjects are excluded from the study if any of the following criteria apply: 1. Conditions interfering with oral intake of NST-628 2. Conditions interfering with intestinal absorption of an orally administered drug 3. A history or current evidence of significant retinal pathology leading to increased risk of RVO 4. A history or evidence of cardiovascular risk 5. Current or history within 6 months of planned Cycle 1 Day 1 of pneumonitis or interstitial lung disease (ILD) 6. Part B: prior treatment with any MEK or BRAF inhibitor 7. Untreated or symptomatic central nervous system (CNS) metastases 8. Chemotherapy, radiation, gene therapy, vaccine therapy, or anti-cancer antibodies / ADCs within 28 days of Cycle 1 Day 1 9. Targeted small molecule agents within 14 days or 5 half-lives of Cycle 1 Day 1 10. Females who are pregnant or breastfeeding. 11. For fertile patients (female able to become pregnant or male able to father a child), refusal to use effective contraception during the period of the trial and for 6 months after the last dose of NST-628 12. Presence of any serious or unstable concomitant systemic disorder incompatible with the clinical study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
18 sites in 2 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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Cabrini Health Limited
RECRUITINGMalvern, Victoria, 3144, Australia
Contact Email: •••••@•••••
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Cabrini Hospital
RECRUITINGMalvern, Victoria, 3144, Australia
Contact Email: •••••@•••••
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Columbia University Medical Center
RECRUITINGNew York, New York, 10032, United States
Contact Email: •••••@•••••
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Gallipoli Medical Research Centre- Greenslopes Private Hospital
RECRUITINGGreenslopes, Queensland, 120, Australia
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Laura & Isaac Perlmutter Cancer Center at NYU Langone Health
RECRUITINGNew York, New York, 10016, United States
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MD Anderson Cancer Center
RECRUITINGHouston, Texas, 77030, United States
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Memorial Slone Kettering Cancer Center
RECRUITINGNew York, New York, 10065, United States
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Moffitt Cancer Center
RECRUITINGTampa, Florida, 33612, United States
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NEXT Oncology - Austin
ACTIVE_NOT_RECRUITINGAustin, Texas, 78758, United States
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NEXT Oncology - Dallas
ACTIVE_NOT_RECRUITINGDallas, Texas, 75039, United States
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NEXT Oncology - Virginia
RECRUITINGFairfax, Virginia, 22031, United States
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Roswell Park
RECRUITINGBuffalo, New York, 14263, United States
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SCRI Oncology Partners
RECRUITINGNashville, Tennessee, 37203, United States
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START Moutain Region
COMPLETEDWest Valley City, Utah, 84119, United States
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Sarah Cannon Research Institute at Health ONE
RECRUITINGDenver, Colorado, 80218, United States
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Scientia Clinical Research, Ltd
COMPLETEDRandwick, New South Wales, 2031, Australia
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Southern Oncology Research Unit
RECRUITINGAdelaide, South Australia, 5042, Australia
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The Kinghorn Cancer Center, St. Vincent's Health Network
RECRUITINGDarlinghurst, New South Wales, 2010, Australia
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UCLA Hematology/Oncology
RECRUITINGWestwood, Los Angeles, California, 90024, United States
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UCSF Helen Diller Family Comprehensive Cancer Center
RECRUITINGSan Francisco, California, 94158, United States
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UPMC Hillman Cancer Center
RECRUITINGPittsburgh, Pennsylvania, 15232, United States
Contact Email: •••••@•••••
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Vanderbilt-Ingram Cancer Center
RECRUITINGNashville, Tennessee, 37232, United States
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Yale Cancer Center
COMPLETEDNew Haven, Connecticut, 06511, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Experimental therapy aims to turn brain tumors against themselves
- New antibody GNR-051 tested for safety in Hard-to-Treat cancers
- Mining Responders' tumors for clues to a universal cancer therapy
- Radioactive tiles target brain tumors in frail patients
- Blood test could spot Melanoma's BRAF mutation
- Breathing CO2 during brain scans could reveal hidden tumor disruption