Treatment
S-1 clinical trials
We’re tracking 792 recruiting studies that include S-1, each written for real people, not researchers, below.
Recruiting studies
- NCT05319730RecruitingPhase 1/Phase 2
Testing new drugs, with or without pembrolizumab, for advanced esophageal cancer
This trial studies investigational cancer medicines, either alone or along with pembrolizumab, for people with advanced esophageal squamous cell cancer whose cancer has grown despite prior immune and platinum-based treatment. It may offer a new option after standard therapy has not worked.
Tucson, ArizonaAges 18 years+ - NCT05357846RecruitingPhase 3
Check whether PD-1 treatment helps esophagus cancer before surgery
This Phase 3 trial tests whether adding a PD-1 medicine (sintilimab) to standard chemo-radiation before surgery improves outcomes for locally advanced esophageal squamous cell cancer. It may help by strengthening the immune response while shrinking the tumor before an operation.
Guangzhou, GuangdongAges 18–70 - NCT05335811RecruitingPhase 1
PET scan test of a new radioactive drug for tumors and inflammation
This Phase 1 study tests whether a new PET imaging tracer (a small amount of radioactive medicine) is safe and how it moves through the body. It’s mainly for adults with cancer who have signs of inflammation or possible immune side effects, so doctors can see what’s happening in the body.
Houston, TexasAges 18 years+ - NCT05345002RecruitingPhase 2
ATRA plus PD-1 therapy for IDH-mutant recurrent brain tumors
This trial studies whether adding all-trans retinoic acid (ATRA) to an anti–PD-1 immune therapy can slow recurrent or worsening IDH-mutant glioma. It may help by boosting the immune system’s attack on the tumor.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05118789RecruitingPhase 1/Phase 2
Study drug for ROS1-positive lung or solid tumors
This Phase 1/2 study tests zidesamtinib (NVL-520), a medicine meant to attack cancers that have a ROS1 genetic change. It’s for people with advanced or metastatic ROS1-rearranged NSCLC (lung cancer) and, in one group, other solid tumors.
Orange, CaliforniaAges 12 years+ - NCT05136703Recruiting
Study depression treatment effects in people living with HIV
This study looks at how depression and its treatment may affect the brain and immune-related body systems in people with HIV. You may be eligible if you have depression and a well-controlled HIV viral load, and you can safely complete brain MRI scans.
Coral Gables, FloridaAges 18 years+ - NCT05119179RecruitingPhase 4
Testing how genetics affect GLP-1 response in prediabetes
This study looks at how your genes may change how well a GLP-1–type medicine works to improve prediabetes. It focuses on adults at higher risk of developing diabetes, especially people of Mexican-American background.
Brownsville, TexasAges 18 years+ - NCT04160455Recruiting
Study of GALIG proteins in adults with HIV on or off treatment
This study looks at how “GALIG” gene products affect the body’s internal recycling process (called autophagy) in people living with HIV. It may help researchers understand differences between people on HIV treatment, starting treatment, or not currently taking it.
OrléansAges 18 years+ - NCT05039801RecruitingPhase 1
Study drug IACS-6274 tested for advanced solid tumors
This Phase 1 study tests the experimental drug IACS-6274, sometimes with bevacizumab and paclitaxel, in people with advanced solid tumors that have not responded to standard treatments. It aims to find the safest dose and to learn whether the treatment can shrink or control cancer for certain tumor mutation types.
Houston, TexasAges 18 years+ - NCT05029726RecruitingPhase 4
Numbing medicine during back surgery to reduce pain
This trial tests a regional anesthesia (numbing medicine given near nerves) during minimally invasive lumbar spine surgery. The goal is to see if it helps control pain around surgery and improves recovery comfort.
Chicago, IllinoisAges 18–80 - NCT04988555RecruitingPhase 1/Phase 2
Study of an investigational drug for high-risk acute leukemia
This Phase 1/2 study tests enzomenib (DSP-5336) in people with relapsed or hard-to-treat acute leukemia (and, in some places, certain other blood cancers). The goal is to see how the drug works and how safe it is, especially for leukemia cases with specific genetic changes (KMT2A/MLL or NPM1).
Newport Beach, CaliforniaAges 12 years+ - NCT04966481RecruitingPhase 3
Palbociclib plus cetuximab versus cetuximab alone
This trial studies whether adding palbociclib to cetuximab works better than cetuximab by itself for head and neck cancer that is growing again after an anti–PD-1/PD-L1 treatment. It is for people whose tumor has a specific gene change (CDKN2A loss) and who have not had too many prior treatments.
Worthington, MinnesotaAges 18 years+ - NCT04990609RecruitingPhase 2
Study for pancreatic cancer using a biopsy-confirmed treatment approach
This Phase 2 trial is for people with pancreatic ductal adenocarcinoma (a type of pancreatic cancer) confirmed by biopsy. It tests a new treatment strategy after the cancer is diagnosed and considers people who haven’t had certain chemotherapy yet.
Houston, TexasAges 18 years+ - NCT04883255RecruitingEarly Phase 1
Study cannabis effects on brain function in adults with HIV
This early-phase study looks at how cannabis (and the body’s cannabinoid system) may affect thinking and brain-related measures in people with HIV. You may be asked to avoid cannabis and complete several brain and health assessments to see how these factors relate.
San Diego, CaliforniaAges 18–65 - NCT04799288RecruitingPhase 1/Phase 2
Teriflunomide for HTLV-1 spinal cord stiffness and weakness
This early-phase trial tests whether teriflunomide can help people with HTLV-1 associated myelopathy (HAM) or tropical spastic paraparesis (TSP). It also checks safety and how well the treatment can be followed over time.
Bethesda, MarylandAges 18–120 - NCT04811560RecruitingPhase 1/Phase 2
Study of a targeted medicine for certain relapsed leukemia
This Phase 1/2 trial tests bleximenib, a targeted medicine, for people whose acute leukemia has specific gene changes and has come back or does not respond to treatment. It may help by attacking these leukemia-specific targets when other treatment options have run out.
Duarte, CaliforniaAges 2 years+ - NCT04731272RecruitingPhase 2
Weekly GLP-1 medicine for blood sugar issues in adults with CF
This Phase 2 trial tests a weekly GLP-1 medicine (dulaglutide) to improve blood sugar control in adults with cystic fibrosis (CF) who have trouble managing glucose. It may help people with CF-related prediabetes or diabetes by improving how their body handles sugar.
Aurora, ColoradoAges 18 years+ - NCT04730622Recruiting
Studying muscle and bone changes after a hip fracture
This study looks at how bone health and muscle strength (“osteosarcopenia” — loss of both bone and muscle) change after a hip fracture in older adults. It may help doctors understand who is at higher risk and how to better support recovery after hip surgery.
BolognaAges 65 years+ - NCT04615988Recruiting
Vitamin D levels and hormone side effects from immune cancer therapy
This study looks at whether your blood vitamin D level is linked to hormone-related side effects caused by immune checkpoint cancer drugs. It may help doctors better predict who is at risk and how to monitor patients during treatment.
New York, New YorkAges 18 years+ - NCT04643041Recruiting
Watch-and-wait after PD-1 for certain rectal cancer
This study looks at whether people with a very strong response to a PD-1 antibody can safely delay or avoid more standard rectal cancer treatment (a “watch-and-wait” approach). It may help some people avoid surgery, radiation, or ongoing treatment while still closely monitoring the cancer.
Guangzhou, GuangdongAges 18–80 - NCT04566380RecruitingPhase 2
Study for people already taking ONO-4538
This trial is for people who are already being treated with ONO-4538 (either alone or with other treatments) and can continue into an “extension/rollover” study. It checks how well ONO-4538 continues to work and is used safely over more time.
Chiba, ChibaAges 16 years+ - NCT04580134RecruitingPhase 4
Clozapine study for people with a specific schizophrenia or bipolar type
This trial tests whether clozapine works better for people whose illness fits a specific “biotype-1” pattern. It may help reduce ongoing symptoms, but it also requires close safety monitoring.
Hartford, ConnecticutAges 18–60 - NCT04512534RecruitingPhase 2
Check-in study of immunotherapy plus another drug for lymphoma
This Phase 2 trial tests whether combining sintilimab (an immunotherapy) with chidamide (an anticancer “epigenetic” drug) can shrink peripheral T-cell lymphoma that has come back or didn’t respond. It’s for adults who have measurable lymphoma spots and can safely take both medicines.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT04575844RecruitingPhase 4
Exercise and GLP-1 to improve insulin and muscle blood flow
This study looks at whether doing exercise and a GLP-1 medicine (liraglutide or similar) can improve how your body uses insulin and how blood flows to your muscles. It is aimed at adults with metabolic syndrome who do not already have diabetes.
Charlottesville, VirginiaAges 21–60
Common questions
- Are there clinical trials studying S-1?
- Yes. Clin2 currently lists 792 recruiting studies that include S-1, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a S-1 trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Is S-1 an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether S-1 or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.