New drug targets Hard-to-Treat cancers with missing gene
NCT ID NCT06810544
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new drug called TNG456, alone or with another drug (abemaciclib), in people with advanced cancers that have lost a gene called MTAP. The trial has two parts: first finding a safe dose, then testing how well it shrinks tumors. Up to 191 adults with lung cancer, brain tumors, or other solid tumors that have progressed on standard treatments may join.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- TNG456 (a PRMT5 inhibitor) and abemaciclib (Verzenio)
- What this could lead to
- If successful, this could lead to a new treatment option for certain hard-to-treat cancers that have an MTAP gene loss.
- What could go wrong
- This is an early first-in-human study, so safety and effectiveness are not yet known. The drug may not work or could cause side effects.
Why investors are watching
Tango Therapeutics is testing TNG456, an oral drug for advanced solid tumors with a specific genetic marker called MTAP loss. This is the first human study of the drug, and the outcome matters because TNG456 is a key pipeline asset for a small company with few other products.
If it works: If TNG456 shows safety and signs of tumor control, Tango could advance the drug to later-stage trials and strengthen its position as a developer of targeted cancer therapies. A positive result might also attract partnership interest from larger drug companies.
If it fails: The trial could fail to show enough benefit or cause unexpected side effects, which would set the program back. Early-stage cancer trials often fail, and for a small company, a setback with a lead drug could be a major blow.
AI-written from the trial record. Speculative, and not investment advice.
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 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 191 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2025
- Expected to finish
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Sep 2027
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: * Has a tumor with a confirmed MTAP loss * Is ≥18 years of age at the time of signature of the main study ICF * Has had progression or an inadequate response to or is intolerant of the approved standard of care therapy, no standard of care therapy exists, or the investigator has determined that treatment with the standard of care therapy is not appropriate. * Is able to swallow tablets * Adequate Organ function/reserve per local labs * Negative serum pregnancy test result at screening * Has an ECOG performance status score of 0 to 1 * Has measurable disease based on RECIST v1.1 or a confirmed glioblastoma (IDH-wildtype) with radiographic evidence of disease progression or recurrence defined by RANO 2.0. * Has an ECOG performance score of 0 to 1 or for GBM has a Karnofsky performance status score ≥70. Exclusion Criteria: * A female patient is who is pregnant or breastfeeding * Has impaired GI function or disease that may significantly alter the absorption of oral study treatment(s) * Has an active infection requiring systemic therapy * Has received prior treatment with a PRMT5 inhibitor or a MAT2A inhibitor * Patients in the expansion receiving the combination therapy that have received prior treatment with a CDK4/6 inhibitor * Clinically relevant cardiovascular disease * Has a prior or ongoing clinically significant illness may affect the safety of the patient, impair the assessment of study results or compliance with the protocol
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Genom att skicka in godkänner du våra Användarvillkor
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
15 sites. 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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Dana Farber Cancer Institute
RECRUITINGBoston, Massachusetts, 02215, United States
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MD Anderson Cancer Center
RECRUITINGHouston, Texas, 77030, United States
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Mayo Clinic Cancer Center
RECRUITINGRochester, Minnesota, 55905-0001, United States
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Mayo Clinic Jacksonville
RECRUITINGJacksonville, Florida, 32224, United States
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Mayo Clinic Scottsdale
RECRUITINGScottsdale, Arizona, 85259-5452, United States
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Memorial Sloan Kettering Cancer Center
RECRUITINGNew York, New York, 11065, United States
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NEXT Virginia
RECRUITINGFairfax, Virginia, 22031, United States
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NYU Langone Health
RECRUITINGNew York, New York, 10016, United States
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Northwestern Memorial Hospital
RECRUITINGChicago, Illinois, 60611-2908, United States
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Ohio State University Comprehensive Cancer Center
RECRUITINGColumbus, Ohio, 43210, United States
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Sibley Memorial Hospital
RECRUITINGWashington D.C., District of Columbia, 20016, United States
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University of California Los Angeles
RECRUITINGLos Angeles, California, 90995, United States
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University of California at San Francisco
RECRUITINGSan Francisco, California, 94143-2202, United States
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University of California, Irvine
RECRUITINGIrvine, California, 92686, United States
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University of Utah, Huntsman Cancer Institute
RECRUITINGSalt Lake City, Utah, 84112-5500, United States
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Other studies related to the condition(s) this trial covers.
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- Smaller chest drain may speed recovery after lung cancer surgery
- Gut bacteria may hold clues to why some cancer treatments work better
- Can an Anti-Fibrotic drug shield lungs from radiation after immunotherapy?
- Breath-Tracking sensor aims to sharpen lung cancer scans
- First human test of BI 4060107 aims to find safe dose for Hard-to-Treat tumors