Breast cancer clinical trials in Seattle

This phase II trial studies the immunologic response and side effects of using the WOKVAC vaccine in combination with chemotherapy and HER2-targeted monoclonal antibody therapy before surgery in treating patients with breast cancer. Vaccines like WOKVAC are made from tumor-associated antigens which may help the body build an effective immune response to kill tumor cells. Chemotherapy drugs, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Trastuzumab and pertuzumab are forms of targeted therapy because they work by attaching themselves to specific molecules (receptors) on the surface of tumor cells, known as HER2 receptors. When trastuzumab and pertuzumab attach to HER2 receptors, the signals that tell the cells to grow are blocked and the tumor cell may be marked for destruction by the body's immune system. Giving the WOKVAC vaccine at the same time (concurrently) with paclitaxel, trastuzumab, and pertuzumab before surgery may kill more tumor cells.

For women diagnosed with early stage breast cancer, lumpectomy followed by radiation is a common treatment option. Radiation treatment is typically delivered to the whole breast, five times per week, for anywhere from 3 to 8 weeks. The radiation helps kill any cancer cells that may have been left over following the surgery but causes skin burns. Many studies have demonstrated that radiation to the whole breast is not necessary, that it can be delivered to a portion of the breast where the cancer is more likely to recur. A technique called a Permanent Breast Seed Implant (PBSI) involving the implantation of radioactive seeds has been developed to deliver the radiation to a portion of the breast. The procedure is performed on an out-patient basis under local anesthesia and light sedation. Because the radioactive seeds are permanently implanted in the breast, the patient is able to live a normal life while the seeds deliver the prescribed radiation to the breast. Previous studies on PBSI demonstrate that it is a safe and effective alternative form of radiation for appropriately selected patients after lumpectomy. However, those results have been obtained mainly from a single institution, with only 4 patients treated in another center. Further research is still needed to evaluate its safety in a multi-center setting. The purpose of this study is to ensure the appropriate training of clinicians who will be performing this procedure and to capture long term outcomes and rare complications if any.

RATIONALE: The use of tailored axillary dissection as a tailored procedure will avoid surgical overtreatment by selectively removing the lymph nodes that are affected by the cancer, thereby sparing many women the unnecessary complications of a radical surgery, providing a better quality of life while keeping the same efficacy. PURPOSE: The phase III trial is evaluating the optimal treatment for breast cancer patients in terms of surgery and radiotherapy.

This phase I trial studies the safety of personalized neo-antigen peptide vaccine in treating patients with stage IIIC-IV melanoma, hormone receptor positive HER2 negative breast cancer that has spread from where it first started (primary site) to other places in the body (metastatic) or does not respond to treatment (refractory) or stage III-IV non-small cell lung cancer. Personalized neo-antigen peptide vaccine is a product that combines multiple patient specific neo-antigens. Given personalized neo-antigen peptide vaccine together with Th1 polarizing adjuvant poly ICLC may induce a polyclonal, poly-epitope, cytolytic T cell immunity against the patient's tumor.

This clinical trial will assess the safety and early efficacy of Hydroxychloroquine or Avelumab, with or without Palbociclib, in early-stage ER+ breast cancer patients who are found to harbor disseminated tumor cells (DTCs) in the bone marrow after definitive surgery and standard adjuvant therapy.

The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the treatment of participants with metastatic HER2-positive breast cancer who have progressed on, or are intolerant to, previous T-DXd treatment.

This stage IV trial examines how a mutation in HSD3B1 (1245C) gene affects treatment of stage I-III breast cancer. This trial may help researchers determine if mutations in HSD3B1 decreases the efficacy of aromatase inhibitor therapy such as letrozole. Letrozole may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.

This phase II trial tests the accuracy of functional imaging (FFNP)-positron emission tomography (PET)/computed tomography (CT) to predict response to abemaciclib plus endocrine therapy. Abemaciclib is a drug used to treat certain types of hormone receptor positive (HR+), HER2 negative breast cancer. Abemaciclib blocks certain proteins, which may help keep tumor cells from growing. Endocrine therapy adds, blocks, or removes hormones that can cause cancer to grow. FFNP PET imaging is a form of x-ray that uses FFNP as an imaging agent that may provide more precise information about the location of tumors that "light up" with FFNP than a PET scan alone can provide.

This is a first-in-human (FIH), Phase 1 open-label, multicentre dose escalation study investigating AVA6000 monotherapy administered intravenously in patients with locally advanced (unresectable) or metastatic solid tumours that are likely to be FAP positive. The study consists of an initial Phase 1a dose escalation portion and a subsequent Phase 1b dose expansion portion upon completion of the dose escalation portion.

This study collects blood and tissue samples from patients with cancer and without cancer to evaluate tests for early cancer detection. Collecting and storing samples of blood and tissue from patients with and without cancer to study in the laboratory may help researchers develop tests for the early detection of cancers.

This clinical trial is studying solid tumor cancers. A solid tumor is one that starts in part of your body like your lungs or liver instead of your blood. Once they've grown bigger in one spot or spread to other parts of the body, they're harder to treat. This is called advanced or metastatic cancer. Participants in this study must have breast cancer or gastric cancer. Participants must have tumors that have HER2 on them. This allows the cancer to grow more quickly or spread faster. There are few treatment options for patients with advanced or metastatic solid tumors that express HER2. This clinical trial uses an experimental drug called disitamab vedotin (DV). Disitamab vedotin is a type of antibody drug conjugate or ADC. ADCs are designed to stick to cancer cells and kill them. This clinical trial uses a drug called tucatinib, which has been approved to treat cancer in the United States and some other countries. This drug is sold under the brand name TUKYSA®. This study will test how safe and how well DV with tucatinib works for participants with solid tumors. This study will also test what side effects happen when participants take these drugs. A side effect is anything a drug does to the body besides treating the disease.

An Open-label, Phase I Dose Escalation and Phase 2 Dose Expansion Study to Assess Safety, Tolerability, Preliminary Antitumor Activity of SMP 3124LP in Adults with Advanced Solid Tumors

OKI-219-101 is a Phase 1a/1b, open-label, multicenter, dose-escalation study designed to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PDx), and efficacy of OKI-219 as monotherapy and in combination with other anti-cancer drugs. Phase 1a (Part A) will investigate escalating doses of OKI-219 monotherapy, and Phase 1b will investigate OKI-219 (at a tolerated dose determined in Part A) in combination with fulvestrant (Part B), trastuzumab and tucatinib (Part C), atirmociclib (Part D), and ribociclib and fulvestrant (Part E). Participants will continue to receive study treatment until disease progression, intolerable toxicity, or other study treatment withdrawal criteria are met.

The purpose of this study is to evaluate the efficacy and safety of ctDNA-guided initiation of CDK4/6 inhibitor therapy using the Signatera™ Designed on Genome test (referred to as "Signatera Genome") in participants with intermediate-risk HR+/HER2- early-stage breast cancer. Based on ctDNA test results, participants will either start CDK4/6 inhibitor therapy in addition to hormone therapy or continue hormone therapy with ongoing ctDNA surveillance. This study will compare outcomes to historical controls from the NataLEE trial to determine whether ctDNA-guided timing maintains efficacy while reducing unnecessary treatment. Participants will be followed for up to 9 years with regular blood draws, hormone therapy, imaging as needed, and quality-of-life assessments.

Phase 1 dose escalation and expansion study of CLSP-1025, a first-in-class HLA-A\*02:01 specific T cell engager (TCE) targeting solid tumors that harbor the p53 R175H mutation.

This clinical trial studies how well fluorine F 18 fluorthanatrace (\[18F\]FTT) positron emission tomography (PET) works in imaging patients with breast cancer that has spread from where it first started (primary site) to other places in the body (metastatic) who are receiving standard of care (SOC) poly (ADP-ribose) polymerase (PARP) inhibitors with or without immune checkpoint inhibitors (ICI) to be able to detect clinical response to PARP inhibitor ± ICI treatment. \[18F\]FTT is a radiotracer that targets and binds to PARP1 which can potentially be used for the imaging of PARP1 expression using PET. Once administered, \[18F\]FTT targets and binds to PARP1. Upon PET, PARP1-expressing tumor cells can be visualized. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case, \[18F\]FTT. Because some cancers take up \[18F\]FTT it can be seen with PET. PARP inhibitors work as a targeted therapy by blocking an enzyme involved in repairing cell damage. It may cause tumor cells to die. ICI may help the body's immune system attack the cancer and may interfere with the ability of tumor cells to grow and spread. Combining \[18F\]FTT with a PET scan may help detect tumor cells better in patients with metastatic breast cancer who are receiving standard of care PARP inhibitors with our without ICI treatment.

The purpose of the study is to demonstrate superiority of Saruparib (AZD5305) relative to placebo added to a standard radiation therapy (RT) + androgen deprivation therapy (ADT) regimen by assessment of metastases-free survival in participants with high-risk and very high-risk localised/locally advanced prostate cancer with a breast cancer gene mutation (BRCAm).

The goal of this clinical trial is to learn if the drug TUB-030 works to treat solid cancer in adults. The study will also explore the safety of TUB-030. The main questions it aims to answer are: To determine the safety and tolerability of TUB-030 To determine the maximum tolerated dose of TUB-030 as a single drug given to patients with solid cancer Researchers will also compare doses of TUB-030 in two specific cancer types, in patients with head and neck cancer and patients with non-small cell lung cancer, to see if TUB-030 works to treat these two solid cancer types and to determine the best dose. Participants will: Receive drug TUB-030 every 3 weeks Visit the clinic once every 3 weeks for checkups and tests Answer patient reported outcome questionnaires about their symptoms

This study will evaluate the efficacy and safety of the combination of inavolisib plus a cyclin-dependent kinase 4 and 6 inhibitor (CDK4/6i) and letrozole versus placebo plus a CDK4/6i and letrozole in the first-line setting in participants with endocrine-sensitive PIK3CA-mutated hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-), advanced breast cancer (ABC).

This trial will look at a drug called sigvotatug vedotin (SGN-B6A) alone and with pembrolizumab, with or without chemotherapy, to find out whether it is safe for people who have solid tumors. It will study sigvotatug vedotin to find out what its side effects are. A side effect is anything the drug does besides treating cancer. It will also study whether sigvotatug vedotin works to treat solid tumors. The study will have four parts. * Part A of the study will find out how much sigvotatug vedotin should be given to participants. * Part B will use the dose found in Part A to find out how safe sigvotatug vedotin is and if it works to treat solid tumors. * Part C of the study will find out how safe sigvotatug vedotin is in combination with these other drugs. * Part D will include people who have not received treatment. This part of the study will find out how safe sigvotatug vedotin is in combination with these other drugs and if these combinations work to treat solid tumors. * In Parts C and D, participants will receive sigvotatug vedotin with either: * Pembrolizumab or, * Pembrolizumab and carboplatin, or * Pembrolizumab and cisplatin.