New drug combo aims to boost immune attack on lung cancer
NCT ID NCT05570825
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase 2 trial tests whether combining two drugs, SX-682 and pembrolizumab, can shrink tumors in people with advanced non-small cell lung cancer that has spread or come back. The study will enroll 30 adults whose tumors have a certain protein (PD-L1) and who have not had prior treatment. The goal is to see if the combination improves the rate of tumor response.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- SX-682 and pembrolizumab
- What this could lead to
- If this works, it could point toward a more effective treatment for advanced lung cancer by combining two drugs that boost the immune system against tumors.
- What could go wrong
- This is a small, early-phase trial with only 30 participants, so results may not apply to everyone. The combination may cause side effects or not work better than existing treatments.
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 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2023
- Expected to finish
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Jul 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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 aged 18 years and older * Pathologically or cytologically confirmed non-small cell lung cancer with no known oncogenic EGFR mutation, ALK rearrangement, ROS1 rearrangement or RET rearrangement * Tumoral PD-L1 expression \>=1% by any Clinical Laboratory Improvement Act (CLIA)-certified assay * Metastatic or recurrent non-small cell lung cancer (NSCLC). Stage IIIC per 8th edition TNM stage classification is allowed if not amenable to curative surgery or radiation per investigator judgment * At least one site of measurable disease as determined by the Investigator, using Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1. Subjects must have ECOG PS 0 or 1 at the time of informed consent and at the time of treatment initiation * Must be willing to provide pre-treatment archived specimen or undergo a biopsy procedure if archived specimen is not available * Must be willing to provide an on-treatment biopsy, if deemed safe by the treating physician * Platelet count \>= 100,000/uL * Absolute neutrophil count \>= 1,500/uL * Hemoglobin \>= 8g/dL * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =\< 2.5 times upper limit of normal * Creatinine =\< 2.0 mg/dL * Women of child-bearing potential and sexually active men must agree to use adequate contraception (hormonal or barrier method) prior to treatment initiation, during treatment and for three months after completing treatment * Negative beta-human chorionic gonadotropin (hCG) pregnancy test at screening for patients of childbearing potential. Pregnant or breast feeding women are not eligible * Signed and dated informed consent document indicating that the patient has been informed of all the pertinent aspects of the trial prior to enrollment Exclusion Criteria: * Participants must not have received prior chemotherapy or immune checkpoint inhibitor or immune-modulatory therapy (e.g. anti-PD\[L\]1, anti-CTLA4, anti-TIM3, anti-GITR, anti-TIGIT, anti-LAG3), for metastatic or recurrent NSCLC, with the following exceptions: * Participants may have received prior chemotherapy, immune checkpoint inhibitor, and/or immune modulatory therapy in the curative setting if the last dose of treatment was more than (\>) 24 weeks prior to consenting * For patients with NSCLC harboring an oncogenic alteration other than listed may have received prior small molecule inhibitor therapy (e.g. MET inhibitor for MET exon 14 mutated NSCLC). A wash-out period of at least 5 half-lives is required prior to start of study treatment * Presence of other active cancers within the last 2 years. Patients with any prior early stage cancer who have received definitive local treatment at least 2 years previously and no evidence of recurrence are eligible. All patients with previously treated in situ carcinoma are eligible, as patients with history of non-melanoma skin cancer * Symptomatic central nervous system (CNS) metastases; participants with known brain metastasis must be asymptomatic with no steroids or escalating doses of antiepileptics within 7 days prior to start of study treatment * Patients with untreated CNS metastases may be enrolled as long as they meet the above criteria. Patients with bulky CNS metastases should consider receiving radiation prior to study entry per investigator judgment * Participants with spinal cord compression must have received local treatment and must have been symptomatically stable with no use of steroids for at least 7 days prior to start of study treatment * Participants must not have an active autoimmune disease that has required immune modulating treatment within (\<) 365 days prior to consenting (i.e., disease modifying agents, corticosteroids). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is allowed * Inability to discontinue systemic corticosteroid therapy; systemic steroids must be tapered off 7 days prior to first dose of SX-682 * Known history of primary immunodeficiency * History of organ transplant that requires use of immunosuppressives * Current symptomatic pneumonitis and any past history of immune checkpoint inhibitor related pneumonitis regardless of steroid treatment history * History of non-infectious pneumonitis (e.g. radiation pneumonitis) that required steroids within 3 months of start of study treatment * Radiotherapy within 7 days of start of study treatment * Major surgery within 21 days of start of study treatment. Minor surgery within 2 weeks of start of study treatment. Placement of vascular access device and biopsies are not considered major or minor surgery and are allowed * Electrocardiogram (EKG) demonstrating a corrected QT (QTc) interval \> 480 msec on three consecutive EKGs or patients with congenital long QT syndrome * Severe lung disease (e.g. chronic obstructive pulmonary disease \[COPD\]) who cannot stop steroids 7 days prior to start of study treatment * Serious cerebrovascular and cardiac disease defined as: * Active unstable angina pectoris * Congestive heart failure NYHA (New York Heart Association) \> grade 3 * Acute myocardial infarction within 3 months of consenting * Stroke or transient ischemic attack within 3 months of consenting * Known active chronic infections: Active hepatitis B, hepatitis C and tuberculosis. Testing is not required for assessment of eligibility. Active infection requiring IV antibiotics within 7 days of study treatment initiation * Hepatitis C virus (HCV) infection: Patients with known history of HCV infection are eligible if HCV viral load is below the limit of quantification per local assay * Hepatitis B virus (HBV) infection: Patients with known history of HBV infection are eligible if HBV viral load is below the limit of quantification and negative hepatitis B virus surface antigen (HBsAg) per local assay * Known uncontrolled HIV (human immunodeficiency virus) infection * Participants with known HIV infection are allowed if they are receiving anti-retroviral therapy, have CD4+ T-cell count \>= 350 cells/uL within 6 months prior to study treatment initiation and no history of acquired immunodeficiency syndrome (AIDS)-defining opportunistic infection * Any serious or uncontrolled concomitant disorder that, in the opinion of the investigator, would compromise the patient's ability to complete the study * Patient with any significant history of non-compliance to medical regimens or with inability to grant reliable informed consent
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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
1 site. 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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Fred Hutch/University of Washington Cancer Consortium
RECRUITINGSeattle, Washington, 98109, United States
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