Clinical trials · San Diego, CA
HER2-negative Breast Cancer clinical trials in San Diego
We’re tracking 14 recruiting her2-negative breast cancer studies with a site in or near San Diego — including Phase 1, Phase 1/Phase 2, Phase 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies near San Diego
- NCT05879926RecruitingPhase 3
Testing chemo after hormone therapy in premenopausal early breast cancer
This Phase 3 trial checks whether adding chemotherapy after standard hormone-blocking treatment works better for some premenopausal women with early-stage, ER-positive, HER2-negative breast cancer. It targets patients with limited lymph node spread and a lower-to-intermediate tumor “recurrence” risk score.
San Diego, CaliforniaAges 18–60 - 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 Diego, CaliforniaAges 18 years+ - NCT05579366RecruitingPhase 1/Phase 2
Study of rinatabart sesutecan for advanced solid tumors
This trial tests an investigational drug called rinatabart sesutecan (also known as Rina-S) for people with advanced solid tumors, including ovarian, endometrial, lung, breast, and other cancers. The drug is designed to target and kill cancer cells, and the study aims to see if it is safe and effective.
San Diego, CaliforniaAges 18 years+ - NCT06590857RecruitingPhase 1/Phase 2
Study of targeted radiation for advanced breast cancer
This trial tests a new type of radiation therapy that targets a specific protein on some breast cancer cells. It may help people whose cancer has stopped responding to other treatments.
San Diego, CaliforniaAges Any age - NCT05216432RecruitingPhase 1
RLY-2608 for PIK3CA-mutant advanced solid tumors and breast cancer
This early study (Phase 1) tests RLY-2608, a targeted cancer drug for tumors with a PIK3CA mutation. It studies the drug alone and combined with hormone therapy (and sometimes CDK4/6 or CDK4 medicines) to see safety, dose, and whether it can shrink tumors.
San Diego, CaliforniaAges 18 years+ - NCT05564377RecruitingPhase 2
Find targeted cancer treatments using genetic testing
This study matches people with advanced solid tumors to targeted treatment plans based on genetic testing. It also requires tumor sample testing to help doctors choose the most promising therapy for your specific tumor changes.
San Diego, CaliforniaAges Any age - NCT06625775RecruitingPhase 1
Study of BBO-10203 for advanced solid tumors
This trial tests a new drug called BBO-10203, alone or combined with other cancer treatments, for people with certain advanced breast, colorectal, or lung cancers. It aims to see if the drug is safe and effective.
San Diego, CaliforniaAges 18 years+ - NCT06764940RecruitingPhase 2
Utidelone and capecitabine for HER2-negative breast cancer with brain metastases
This trial tests if the combination of Utidelone and capecitabine can shrink brain metastases in people with HER2-negative breast cancer. It is designed for those whose cancer has spread to the brain and who have not had many prior treatments.
San Diego, CaliforniaAges 18 years+ - NCT05929768RecruitingPhase 3
Shorter chemo plus immunotherapy without anthracyclines for early TNBC
This Phase 3 trial tests whether a shorter course of chemotherapy plus immunotherapy can work as well as standard treatment for early-stage triple-negative breast cancer. It avoids anthracycline drugs and may help reduce exposure to those medicines if the shorter plan is effective and safe.
San Diego, CaliforniaAges 18 years+ - NCT06790693RecruitingPhase 3
Inavolisib plus hormone therapy for advanced breast cancer
This trial tests a new targeted therapy, inavolisib, combined with standard hormone therapy and a CDK4/6 inhibitor for people with a specific genetic mutation (PIK3CA) in their hormone receptor-positive, HER2-negative advanced breast cancer that has not been treated before. It compares this combination to a placebo plus the same standard treatments.
La Jolla, CaliforniaAges 18 years+ - NCT01042379RecruitingPhase 2
Adaptive drug trial for newly diagnosed breast cancer
This study tests personalized, changing treatment plans (given before surgery) to find better options for your specific breast tumor. You may be asked for extra breast-tissue testing to help match you with the most suitable study drug(s).
La Jolla, CaliforniaAges 18 years+ - NCT05304962RecruitingPhase 1
Test drug RGT-419B for advanced ER+ HER2- breast cancer
This Phase 1 study tests a new drug (RGT-419B), given alone or with hormone (endocrine) therapy, in people with advanced ER-positive, HER2-negative breast cancer that has progressed after standard treatments. It looks mainly at safety and early signs of how well the treatment may work.
La Jolla, CaliforniaAges 18 years+ - NCT04585750RecruitingPhase 1/Phase 2
Studying a new drug for cancers with a specific TP53 change
This trial tests a new drug (rezatapopt) for people with advanced cancers that have a specific change in the TP53 gene, called Y220C. The drug is designed to target this change and may slow or stop cancer growth. Some participants may also receive an immunotherapy drug called pembrolizumab (Keytruda).
La Jolla, CaliforniaAges 12 years+ - NCT06926868RecruitingPhase 2/Phase 3
Study of a new drug versus chemotherapy for advanced triple-negative breast cancer
This trial tests a new investigational drug called izalontamab brengitecan against standard chemotherapy for people with advanced triple-negative breast cancer who cannot receive immunotherapy. The goal is to see if the new drug works better at shrinking or slowing the cancer.
Tijuana, Estado de Baja CaliforniaAges 18 years+
Hear when a new HER2-negative Breast Cancer trial opens near San Diego, CA
We’ll email you when one opens near San Diego, CA — at most once a week, no account needed, unsubscribe anytime.
HER2-negative Breast Cancer trials in other cities
Where these studies are running near San Diego
Institutions with a site for the recruiting her2-negative breast cancer studies listed above.
- UC San Diego Health · 4 studies
- Kaiser Permanente San Marcos · 3 studies
- UC San Diego Moores Cancer Center · 3 studies
- Kaiser Permanente San Diego Medical Center · 2 studies
- Scripps Health · 2 studies
- Kaiser Permanente-Rio San Diego
- Local Institution - 0264
- Research Facility
What taking part in a her2-negative 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 her2-negative breast cancer studies in California.
Common questions
- Are there her2-negative breast cancer clinical trials near San Diego?
- Yes. We're currently tracking 14 recruiting her2-negative breast cancer studies with a site near San Diego, 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 her2-negative breast cancer study near San Diego?
- 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 Diego to take part?
- Not necessarily. These studies have a site near San Diego, 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 her2-negative 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 her2-negative breast cancer studies open near San Diego regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.