Clinical trials · San Antonio, TX
Breast cancer clinical trials in San Antonio
We’re tracking 82 recruiting breast cancer studies with a site in or near San Antonio — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies near San Antonio
- NCT07288359RecruitingPhase 1/Phase 2
Study of GVV858 for HR+/HER2- breast cancer and other solid tumors
This trial is testing a new drug, GVV858, either alone or with hormone therapy, for people with HR+/HER2- advanced breast cancer or certain other advanced solid tumors. It may be an option if standard treatments are no longer working or available.
San Antonio, TexasAges 18 years+ - NCT04389632RecruitingPhase 1
Sigvotatug vedotin for advanced solid tumors that spread
This early-stage study tests a drug called sigvotatug vedotin in people with advanced solid cancers that cannot be removed or have spread. It aims to see how well the treatment works and what side effects it causes.
San Antonio, TexasAges 18 years+ - NCT05059444Recruiting
Blood test study to watch for cancer coming back
This study looks at whether blood tests can detect signs that cancer may return after curative-intent treatment. You would have blood drawn around your usual follow-up visits for up to 5 years, and your de-identified health data would be shared with study investigators.
San Antonio, TexasAges 18 years+ - NCT06239194RecruitingPhase 1/Phase 2
MdX2001 for advanced solid tumors
This trial tests a new drug, MDX2001, for people with advanced solid tumors that have spread. The study aims to find the best dose and see how well it works.
San Antonio, TexasAges 18 years+ - NCT06695845RecruitingPhase 2
Study of zanidatamab for HER2-positive solid tumors
This trial tests a drug called zanidatamab in people with advanced solid tumors that have high levels of HER2 protein (called HER2-positive). It aims to see if zanidatamab can shrink or slow the growth of these tumors.
San Antonio, TexasAges 18 years+ - NCT06757634RecruitingPhase 3
A study of gedatolisib for first-line advanced breast cancer
This trial tests a new targeted therapy called gedatolisib for people with HR-positive, HER2-negative advanced breast cancer who have not yet received treatment for metastatic disease. It aims to see if adding this drug to standard hormone therapy can help control the cancer longer.
San Antonio, TexasAges 18 years+ - NCT05633654RecruitingPhase 3
Test drug combo versus standard care for triple-negative breast cancer
This trial tests a cancer antibody-drug combination plus pembrolizumab (immunotherapy) versus standard treatment. It’s for people with triple-negative breast cancer that still has invasive disease in the breast or lymph nodes after surgery and chemotherapy before surgery.
San Antonio, TexasAges 18 years+ - NCT07503808RecruitingPhase 1
IDE034 for advanced solid tumors with B7-H3 or PTK7
This study tests a new drug called IDE034 for people with advanced solid tumors that have certain markers (B7-H3 and PTK7). The drug may help by targeting these markers on cancer cells, and the study checks if it is safe and effective.
San Antonio, TexasAges 18 years+ - NCT06312176RecruitingPhase 3
Study of new drugs for HR+/HER2- advanced breast cancer
This trial tests two new drugs (sacituzumab tirumotecan and pembrolizumab) against standard treatments for a type of advanced breast cancer that is hormone receptor positive and HER2 negative. It's for people whose cancer has worsened despite hormone therapy with a CDK4/6 inhibitor.
San Antonio, TexasAges 18 years+ - NCT06841354RecruitingPhase 3
Sac-TMT alone or with pembrolizumab for advanced triple-negative breast cancer
This trial tests a new drug, Sac-TMT, given alone or with an immunotherapy drug (pembrolizumab) for people with advanced triple-negative breast cancer who have not yet received any treatment for advanced disease. The goal is to see if this combination can shrink tumors or slow the cancer's growth.
San Antonio, TexasAges 18 years+ - NCT03053193Recruiting
Testing gene activity to guide breast cancer treatment
This study links breast tumor test results from MammaPrint and optional BluePrint (and full genetic data) with real-world clinical information to understand which new gene activity patterns matter. It may help future patients by improving how doctors use these tests to guide care.
San Antonio, TexasAges 18 years+ - NCT04852887RecruitingPhase 3
Testing shorter breast radiation after low-risk hormone breast cancer
This Phase 3 trial studies whether “less intense” radiation can work as well as standard radiation for certain early-stage hormone receptor–positive, HER2-negative breast cancers that have a low Oncotype DX score. It may help reduce treatment burden while keeping cancer control strong.
San Antonio, TexasAges 50–70 - NCT07424547RecruitingPhase 1
Study of SYS6043 for advanced or metastatic solid tumors
This trial tests a new study drug (SYS6043) for people with advanced or metastatic solid tumors that have not responded to or are not candidates for standard therapies. The drug targets a protein called B7-H3 on cancer cells to help stop tumor growth.
San Antonio, TexasAges 18 years+ - NCT04606446RecruitingPhase 2
Study drug for ER-positive, HER2-negative cancers after treatment
This Phase 2 study tests a new Pfizer medicine (PF-07248144) for certain advanced or metastatic breast, prostate, or lung cancers that have not responded to standard treatment or no standard options exist. You may qualify if you have a specific tumor type and a limited number of prior cancer treatments, and if your body functions (blood, liver, kidneys) and heart rhythm meet safety limits.
San Antonio, TexasAges 18 years+ - NCT06966700RecruitingPhase 3
Study of Sac-TMT in Early High-Risk Breast Cancer
This study tests a new drug called Sacituzumab Tirumotecan (Sac-TMT) for people with early-stage, high-risk breast cancer that hasn't spread. The drug is given before surgery to see if it can shrink tumors and improve outcomes.
San Antonio, TexasAges 18 years+ - NCT05386108RecruitingPhase 1/Phase 2
Test abemaciclib plus elacestrant for breast cancer brain spread
This trial studies whether the combination of abemaciclib and elacestrant can slow or shrink ER-positive, HER2-negative breast cancer that has spread to the brain. It is designed for people whose cancer has progressed despite prior hormone (endocrine) treatment.
San Antonio, TexasAges 18 years+ - NCT07145255RecruitingPhase 1/Phase 2
Study of MBRC-201 for advanced solid tumors
This trial tests a new drug, MBRC-201, for people with advanced solid tumors that have not responded to standard treatments. The goal is to find the best dose and see if it helps shrink tumors or slow their growth.
San Antonio, TexasAges 18 years+ - NCT04585750RecruitingPhase 1/Phase 2
Study drug for TP53 Y220C-mutated advanced cancers
This early-phase study tests PC14586 (rezatapopt) in people with advanced or metastatic solid cancers that carry a specific TP53 mutation called Y220C. It mainly looks at safety and how well the treatment may work, sometimes combined with pembrolizumab.
San Antonio, TexasAges 12 years+ - NCT05108298Recruiting
Study to improve cancer survey reporting for young adults
This study focuses on collecting better self-reported information (from questionnaires) from young adults with cancer. It may help improve how future cancer trials understand symptoms and quality-of-life needs.
San Antonio, TexasAges 18–39 - NCT03418961RecruitingPhase 3
Study of heart-risk management for metastatic HER2 breast cancer
This trial follows people with metastatic HER2-positive breast cancer who are at higher risk for heart damage while on HER2-targeted therapy. Some participants are randomly assigned to different monitoring/heart-protection approaches to see what best helps keep the heart safe.
San Antonio, TexasAges 18 years+ - NCT05005403RecruitingPhase 1
Testing azirkitug for lung, head/neck, and other solid cancers
This Phase 1 study tests how a new medicine (azirkitug) behaves in the body and how safe it is, given by IV infusion alone or with other cancer drugs. It may help people with several advanced solid tumor cancers, especially after standard treatments have stopped working.
San Antonio, TexasAges 18 years+ - NCT05208762RecruitingPhase 1
PD-L1 antibody drug study for advanced lung and head/neck cancers
This Phase 1 trial tests a new experimental drug (PF-08046054/SGN-PDL1V) in people with advanced solid tumors that have not responded to standard treatment or can’t use it. It is designed to see how the drug works and how safe it is, with a focus on tumors that have PD-L1 seen on prior lab testing.
San Antonio, TexasAges 18 years+ - NCT04862663RecruitingPhase 3
Capivasertib plus hormone therapy for HR+ breast cancer after progression
This Phase 3 trial studies capivasertib (a targeted pill) plus fulvestrant (a hormone injection) together with a CDK4/6 inhibitor to treat HR+ / HER2- advanced breast cancer that has returned or grown despite earlier hormone therapy. It may help by blocking growth signals linked to cancer cell survival.
San Antonio, TexasAges 18–99 - NCT05748834RecruitingPhase 2
Tucatinib plus Doxil for HER2-positive metastatic breast cancer
This Phase 2 study tests tucatinib (a HER2-targeted pill) plus Doxil (a chemotherapy medicine) to slow or shrink HER2-positive metastatic breast cancer that has been treated before. It may help by targeting HER2 cancer cells more effectively than past treatments alone.
San Antonio, TexasAges 18 years+
Hear when a new Breast cancer trial opens near San Antonio, TX
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Breast cancer trials in other cities
Where these studies are running near San Antonio
Institutions with a site for the recruiting breast cancer studies listed above.
- Texas Oncology - San Antonio · 7 studies
- NEXT Oncology · 6 studies
- University of Texas Health Science Center at San Antonio · 5 studies
- START San Antonio · 4 studies
- Brooke Army Medical Center
- Mays Cancer Center
- NEXT Virginia, LLC
- Research Site
What taking part in a breast cancer study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Looking wider? See all recruiting breast cancer studies in Texas.
Common questions
- Are there breast cancer clinical trials near San Antonio?
- Yes. We're currently tracking 82 recruiting breast cancer studies with a site near San Antonio, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a breast cancer study near San Antonio?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every 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.
- Do I have to live in San Antonio to take part?
- Not necessarily. These studies have a site near San Antonio, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a breast cancer trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New breast cancer studies open near San Antonio regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.