New hope for lung cancer patients Who've run out of options?
NCT ID NCT07306624
First seen Jun 27, 2026 · Last updated Jul 17, 2026 · Updated 2 times
Summary
This phase 2 trial tests a new drug called nelmastobart combined with the chemotherapy docetaxel in 62 people with advanced non-small cell lung cancer that no longer responds to platinum chemo or immunotherapy. The goal is to see if the combination can slow cancer growth and improve survival. Participants must have a specific marker (BTN1A1 TPS score ≥50) to join.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- nelmastobart and docetaxel
- What this could lead to
- If successful, this combination could offer a new treatment option for people with advanced lung cancer who have stopped responding to standard therapies.
- What could go wrong
- This is an early-phase trial with only 62 participants, so results may not apply to everyone. The combination may cause side effects and might not improve survival.
Why investors are watching
STCube, a very small publicly traded company, is running a phase 2 trial of its drug nelmastobart combined with docetaxel for patients with advanced non-small cell lung cancer who have stopped responding to or cannot tolerate standard treatments. For a micro-cap company with few products, this readout is a major test of whether its drug works and could define the company's future value.
If it works: If the trial shows the combination safely controls the disease in these hard-to-treat patients, STCube could gain credibility and a path toward further development or a partnership. A positive result would be a strong signal for a company of this size.
If it fails: Phase 2 trials often fail to meet their goals, and this one has only 62 participants, so results may be unclear or disappointing. A failure or delay could hurt the company's prospects, as it has few other assets to fall back on.
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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 62 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2026
- Expected to finish
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Aug 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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19 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: * Histologically or cytologically confirmed stage IIIb, IIIc, or IV recurrent NSCLC * BTN1A1 TPS score ≥50 * Subjects with positive AGA must have progressed after At least 1 platinum-based chemotherapy and/or immunotherapy AND at least 1 locally approved targeted therapy appropriate to the AGA * Subjects with negative AGA must have progressed after prior PD1/ (PDL therapy and/or at least 1platinum-based chemotherapy * Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0- 1. * Adequate organ function as described in the protocol * Adequate cardiac function as described in the protocol * For female or male patients with reproductive potential: Agree to use contraception throughout the study and at least 5 months after the last dose. * Life expectancy of at least 3 months * Has agreed to provide archival tissue Exclusion Criteria: * Known hypersensitivity to the active ingredients or excipients of the study drug. * History of using Docetaxel for palliative therapy. * Prior treatment with Cytotoxic chemotherapy or oral targeted therapy within 14 days. * Investigational drugs within 5 half-lives. * Monoclonal antibodies or ADCs within 4 weeks. * Use or expected use of strong CYP3A4 inhibitors (e.g., ketoconazole) within 14 days prior to the first dose. * Uncontrolled severe infection requiring IV treatment, or suspected infectious complications/fever. * Requirement for continuous high-dose steroids (\>10 mg/day prednisone equivalent) or immunosuppressants within 7 days (excluding Docetaxel premedication; intermittent/replacement therapies allowed). * Pregnant or breastfeeding women. * History of autoimmune disease requiring systemic treatment within the last 2 years * Known active symptomatic or radiologically unstable CNS lesions * History of stroke, unstable angina, MI, or NYHA Class III-IV symptoms within 6 months, or current Class II. * Systolic BP 160 mmHg or Diastolic BP 100 mmHg, or hypertensive encephalopathy. * History of ILD, organizing/drug-induced pneumonia, or active pneumonia on screening (mild asymptomatic fibrosis requires consultation). * Recipients of allogeneic stem cell or solid organ transplants. * Vaccination with live or attenuated live vaccines within 30 days. * Maligancies other than NSCLC * Failure to recover from prior anti-cancer therapy side effects to CTCAE Grade 1 * Wide-field bone marrow radiation (\>30%) within 4 weeks, or limited palliative radiation within 2 weeks. * Major surgery within 4 weeks or incomplete recovery from surgical side effects. * Evidence of active HBV, HCV, or HIV infection (carriers with negative viral loads/RNA may be eligible). * Clinically unstable pleural or peritoneal effusion (stable cases after intervention are allowed).
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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 places running it
5 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
Locations
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Kangbuk Samsung Hospital
RECRUITINGSeoul, South Korea
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Korea University Anam Hospital
RECRUITINGSeoul, South Korea
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Samsung Medical Center
RECRUITINGSeoul, South Korea
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Seoul National University Bundang Hospital
RECRUITINGSeoul, South Korea
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The Catholic University of Korea St. Vincent's Hospital
RECRUITINGGyeonggi-do, South Korea
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Other studies related to the condition(s) this trial covers.
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- Can PET scan signals predict who beats lung cancer with immunotherapy?