NCT07341737 SL-28 for Advanced Solid Tumours

Eligibility & Interventions

Eligibility Fast-Check

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 60 participants in total. It began in 2026-07-13 with a primary completion date of 2027-01-01.

Brief Summary

Second Life Therapeutics is developing SL-28, an allogeneic, non-genetically modified cell-based therapy for the treatment of advanced solid tumours. The company has recently demonstrated a novel, non-genetic approach to modulate immune cell activity through targeted manipulation of the Universal Receptive System. The purpose of this open label, multi-center clinical trial is to evaluate the anti-tumor activity, safety, and pharmacokinetics, single-agent SL-28 in patients with a diverse array of solid tumors. The study includes an initial Phase 1 dose escalation to determine recommended dose(s) for expansion of SL-28 as a monotherapy and Phase 2 expansion cohorts. The study will enroll patients with advanced solid tumours, including those who failed previous lines of chemo- and immunotherapies.

Eligibility Criteria

Inclusion Criteria: * Ability to provide written informed consent prior to any study-related procedures and to understand the nature, purpose, and potential risks of the study * Adult males and females ≥18 years of age at screening * Life expectancy of at least 3 months * Histologically or cytologically confirmed unresectable advanced solid tumor (recurrent, metastatic, or locally advanced) * Disease refractory to, intolerant of, or refusal of standard therapies, including immunotherapy and molecular/biomarker-directed treatments, as determined by the Principal Investigator (PI) or delegate * Eligible tumor types include: * Head and neck squamous cell carcinoma * Thoracic malignancies (small-cell lung cancer, non-small cell lung cancer, esophageal cancer) * Gastrointestinal malignancies (gastric, liver, colorectal, pancreatic adenocarcinoma) * Genitourinary malignancies (bladder, renal cell, prostate cancer) * Gynecologic malignancies (ovarian, endometrial cancer) * Breast cancer and melanoma * Evaluable disease per RECIST v1.1 * ECOG performance status 0-1 (or up to 2 at PI discretion) * Adequate organ function, defined as: * Total bilirubin ≤1.5 × ULN (≤2.0 × ULN for liver metastases or Gilbert's syndrome) * AST, ALT, alkaline phosphatase ≤2.5 × ULN (≤5 × ULN if liver metastases, at PI discretion) * Creatinine clearance ≥50 mL/min (Cockcroft-Gault) or eGFR ≥50 mL/min (CKD-EPI) * Absolute neutrophil count ≥1,000/mm³ * Platelet count ≥100,000/mm³ * Hemoglobin ≥90 g/L without transfusion within 2 weeks * Prothrombin time and aPTT ≤1.5 × ULN (or stable INR if on anticoagulation) Female patients: -Non-childbearing potential (surgically sterile or postmenopausal), or of childbearing potential with negative pregnancy tests and agreement to effective contraception through 90 days post-dose Male patients: * Agreement not to donate sperm for 90 days post-dose * Agreement to use adequate contraception as applicable * Suitable venous access for blood sampling * Willingness and ability to comply with study procedures and protocol requirements Exclusion Criteria: * Ongoing toxicities ≥ Grade 2 per NCI CTCAE v5.0 (except alopecia, fatigue, sensory neuropathy, or adequately treated endocrine deficiencies) * NYHA Class III or IV heart disease, myocardial infarction within 6 months, unstable arrhythmia, or ischemia on ECG * QTcF \>470 ms (females) or \>450 ms (males) * Active, uncontrolled bacterial, viral, or fungal infection requiring systemic therapy * Requirement for systemic corticosteroids or other immunosuppressive therapy that cannot be discontinued ≥14 days prior to dosing * Prior therapies within restricted timeframes: * Immune checkpoint inhibitors or biologics within 28 days * Antineoplastic therapies, surgery, radiotherapy, or radiopharmaceuticals within 21 days * Unapproved investigational drugs within 5 half-lives * Nitrosoureas or mitomycin C within 6 weeks * Concurrent malignancy within 5 years, except specified low-risk cancers * Pregnancy or breastfeeding * Known HIV, hepatitis B (HBsAg positive), or hepatitis C infection * Inability or unwillingness to comply with protocol procedures * History of anaphylaxis or significant allergy interfering with participation * Clinically significant cardiovascular, pulmonary, hepatic, renal, hematologic, gastrointestinal, endocrine, neurologic, psychiatric, or immunologic disease within 6 months * Conditions affecting drug absorption, distribution, metabolism, or excretion * Receipt of live vaccines within 28 days prior to screening * Participation in another investigational study within 30 days prior to screening

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