NCT06297525 · Step Pharma, SAS
Study of STP938 (Dencatistat) in Advanced Solid Tumours
What this study is about
The Phase 1a part of the study is a gradually increasing doses of STP938 as a treatment given alone. The Phase 1b part of the study is a safety expansion group of participants of STP938 as a treatment given alone.
View original scientific description
The Phase 1a part of the study is a dose escalation of STP938 as a monotherapy. The Phase 1b part of the study is a safety expansion cohort of STP938 as a monotherapy.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Signed and dated informed consent, and able to comply with the study procedures and any locally required authorization.
- Male or female aged ≥ 18 years.
- Advanced disease not curable by available therapies and requires systemic therapy.
- Histologically confirmed diagnosis of eligible cancer type.
- Must have tumor tissue available for biomarker testing.
- Measurable disease (Part 1) and measurable disease per RECIST (Part2)
- Eastern Cooperative Oncology Group (ECOG) performance status ≤2.
- Life expectancy \> 3 months as assessed by the Investigator.
- Adequate organ function (bone marrow, hepatic, renal function and coagulation).
- All toxicities (except alopecia) from prior cancer treatments or procedures must have resolved to ≤Grade 1 or returned to baseline levels prior to enrollment. Main
Exclusion criteria
- Pregnant or breastfeeding females and women of childbearing potential or males unwilling to comply with contraception requirements.
- Known active or symptomatic CNS metastases, carcinomatous meningitis, leptomeningeal disease or a history of spinal cord compression
- Active malignancy within 2 years of study enrollment
- Prior radiation within 2 weeks of start of therapy.
- Systemic cancer treatments, monoclonal antibody-directed therapies, other investigational agents within 4 weeks before enrollment, or \<5 half-lives since completion of previous investigational therapy, whichever is shorter.
- Uncontrolled intercurrent illness.
- Immunocompromised subjects with increased risk of opportunistic infections or history of opportunistic infection in the last 12 months.
- Known active or chronic hepatitis B or active hepatitis C virus (HCV) infection.
- Subjects with corrected QT interval \>470 msec based on averaged triplicate electrocardiogram (ECG) readings at the Screening Visit using the QT interval corrected for heart rate using Fridericia's method (QTcF).
Where
- St. Petersburg, Florida
- Dallas, Texas
- San Antonio, Texas
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 16, 2026 · Source of record for eligibility and locations