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
- NCT07522151RecruitingPhase 3
Adebrelimab with Surgery for Stomach Cancer
This trial tests a new immunotherapy drug called adebrelimab combined with chemotherapy and surgery for stomach cancer or junction cancers (where the stomach meets the esophagus). The goal is to see if this treatment helps prevent cancer from coming back after surgery.
Beijing, Beijing MunicipalityAges 18–75 - NCT07524452RecruitingPhase 3
Becotatug vedotin plus immunotherapy for head and neck cancer
This trial tests a new combination of two drugs—becotatug vedotin (a targeted therapy) and a PD-1 inhibitor (an immunotherapy)—given before surgery to treat advanced head and neck squamous cell carcinoma. The goal is to shrink tumors and improve surgical outcomes for patients with specific cancer markers.
Zhuhai, GuangdongAges 18–75 - NCT07509099RecruitingPhase 3
Combination treatment for advanced head and neck cancer
This study tests a combination of two medications—cetuximab (a targeted antibody) and either pembrolizumab or finotonlimab (immunotherapies)—along with chemotherapy, for advanced head and neck cancer that has spread or come back. The goal is to see if this combination helps shrink tumors and improve survival compared to standard treatment.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06625957RecruitingPhase 3
NTCB02-1 trial for patients needing IV nutrition
This trial tests an investigational IV nutrition product called NTCB02-1 in patients who need nutrition through a vein (parenteral nutrition) for at least 3 days. It aims to see if it is safe and works well.
Gyeonggi-do, Goyang-siAges 19 years+ - NCT07499440RecruitingPhase 2
Testing a new medicine, HB-1, for PTSD
This trial tests an experimental medicine, HB-1, as a potential treatment for PTSD. It is a 8-week study to see if the medicine is safe and if it reduces PTSD symptoms. You must have a stable medication routine and be willing to take the study pill daily.
Deakin, Australian Capital TerritoryAges 18–65 - NCT07504471RecruitingPhase 2
Bicarbonate plus chemo and immunotherapy for pancreatic cancer liver spread
This trial tests adding sodium bicarbonate to a chemotherapy plus immunotherapy regimen for pancreatic cancer that has spread to the liver. The goal is to see if this combination helps shrink tumors and improves outcomes.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06664021RecruitingPhase 2
Tislelizumab and S-1 for recurrent high-risk bile duct cancer
This trial tests a combination of two drugs (tislelizumab and S-1) for people whose bile duct cancer has come back after surgery and had high-risk features. The goal is to see if this treatment can help control the cancer.
Fuyang, AnhuiAges 18–75 - NCT06492005RecruitingPhase 2
Study of 9MW2821 for advanced triple-negative breast cancer
This trial tests a new drug, 9MW2821 (sometimes with a PD-1 inhibitor), for people with advanced triple-negative breast cancer. It may be an option if you've already tried standard treatments or haven't started any yet.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07489989RecruitingPhase 2
Combination therapy to boost CAR-T for B-cell lymphoma
This trial tests a new combination of drugs to make CAR-T cell therapy work better for people with certain types of B-cell lymphoma. It adds the drugs chidamide and a PD-1 inhibitor to the usual CAR-T treatment, aiming to improve response.
Beijing, Beijing MunicipalityAges 18–85 - NCT06622031Recruiting
TIPS with lenvatinib and immunotherapy for advanced liver cancer
This trial combines a procedure called TIPS (which helps relieve pressure in the liver) with two drugs—lenvatinib (a targeted therapy) and a PD-1 inhibitor (an immunotherapy)—for people with advanced liver cancer that has spread into the main vein of the liver. It aims to see if this combination can help control the cancer and improve symptoms.
Beijing, None SelectedAges 18–75 - NCT06472713RecruitingPhase 2
Liposomal mitoxantrone with immunotherapy for advanced nasopharyngeal cancer
This trial tests a combination of a chemotherapy drug (mitoxantrone liposome) with an immunotherapy (PD-1 blocker) for people whose nasopharyngeal cancer has come back or spread and hasn't responded to previous treatments. The goal is to see if this combination can shrink tumors or slow cancer growth.
Zhuhai, GuangdongAges 18–70 - NCT07483567RecruitingPhase 2
Combination treatment before and after stomach cancer surgery
This trial tests a combination of experimental drugs (IBI343, Sintilimab, and chemotherapy) before and after surgery for a specific type of stomach cancer that is CLDN18.2 positive. The goal is to see if this treatment shrinks the tumor and helps prevent the cancer from coming back.
Beijing, Beijing MunicipalityAges 18–75 - NCT06668935Recruiting
Using a continuous glucose monitor to help stick with GLP-1 meds
This study tests whether using a continuous glucose monitor (CGM) like the FreeStyle Libre 3 helps people with type 2 diabetes stay on their new GLP-1 or GIP/GLP-1 medication longer. You must be starting a GLP-1 or GIP/GLP-1 drug for the first time and not already using a CGM.
Jacksonville, FloridaAges 18 years+ - NCT07458529RecruitingPhase 2
Chemoradiation plus immunotherapy with or without probiotics for rectal cancer
This trial tests adding an immunotherapy drug (tislelizumab) and a probiotic to standard chemoradiation for locally advanced rectal cancer that has not spread. The goal is to see if the probiotic helps the treatment work better.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06549946RecruitingPhase 1/Phase 2
Ixovex-1 injection alone or with another drug for advanced solid tumors
This trial tests an experimental injection called Ixovex-1, either alone or with another drug (pembrolizumab), for people with advanced solid tumors that can be injected. It is for those who have run out of standard options and have tumors that are not too deep inside the body.
LondonAges 18 years+ - NCT06789679RecruitingPhase 2
Adding S-1 to standard chemo for advanced pancreatic cancer
This trial tests whether adding a third drug (S-1, a chemotherapy pill) to the standard two-drug IV chemo (albumin-bound paclitaxel and gemcitabine) can help people with advanced pancreatic cancer live longer. It's for those who haven't had treatment yet for their advanced cancer.
Beijing, Chaoyang DistrictAges 18 years+ - NCT07449572RecruitingPhase 1
Safety study of HT31-1 for healthy volunteers
This trial tests a new drug called HT31-1 to see if it's safe in healthy people. It looks at how the drug moves in your body and if it causes side effects. This is a first step before testing it in patients with ARDS (a serious lung condition).
Richmond, VirginiaAges 18–65 - NCT07437911Recruiting
Can a Supplement Help with Nutrient Gaps for GLP-1 Users?
This study tests whether a daily supplement can help fill nutrient gaps and improve gut health for people who are already taking GLP-1 weight-loss medications (like Ozempic or Wegovy). Participants must be on a stable dose for at least 8 weeks and be generally healthy without other chronic conditions.
Santa Monica, CaliforniaAges 18–59 - NCT06333561Recruiting
Combination therapy for infiltrative liver cancer
This trial tests a three-drug combination for a specific type of liver cancer called infiltrative hepatocellular carcinoma. It combines a liver-directed chemotherapy infusion (HAIC) with two oral and intravenous drugs (lenvatinib and a PD-1 inhibitor) to see if it works better than lenvatinib alone.
Beijing, Beijing MunicipalityAges 18–75 - NCT07417501RecruitingPhase 2
Lenvatinib plus immunotherapy for advanced cancers with 11q13 amplification
This trial tests a combination of two drugs, lenvatinib (a targeted therapy that stops blood vessel growth to tumors) and a PD-1 inhibitor (an immunotherapy that helps your immune system fight cancer), in people with advanced solid tumors that have a specific genetic change called 11q13 amplification. The goal is to see if this combination can shrink or control tumors that haven't responded to other treatments.
Wuhan, HubeiAges 18 years+ - NCT07407894Recruiting
Probiotic study for healthy aging in midlife adults
This trial tests a probiotic supplement called iVS-1 to see if it can slow biological aging in healthy adults aged 40-75. Researchers want to learn if this probiotic may help support health as you age.
New Port Richey, FloridaAges 40–75 - NCT07410520RecruitingPhase 2
New drug combo for brain lymphoma
This trial tests a combination of three drugs (rituximab, methotrexate, and orelabrutinib) plus a PD-1 inhibitor for newly diagnosed or relapsed central nervous system lymphoma. The goal is to see if this new combination can improve outcomes for patients with this rare type of lymphoma.
Nanjing, JiangsuAges 18 years+ - NCT07404332RecruitingPhase 1
Combination therapy for tumors resistant to immunotherapy
This trial tests a combination of two drugs (5-Azacitidine and a PD-1/PD-L1 inhibitor) for people whose solid tumors stopped responding to standard PD-1/PD-L1 immunotherapy alone. The goal is to see if this new combination can help shrink the tumor or slow its growth.
Iowa City, IowaAges 18–99 - NCT07398300Recruiting
How GIP and GLP-1 affect insulin and blood flow in the body
This study uses a special full-body PET scan to see how two natural hormones, GIP and GLP-1, affect how your body uses sugar and moves blood. It includes healthy volunteers and people with type 2 diabetes who are on metformin only.
CopenhagenAges 23–64
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.