Extensive Stage Lung Small Cell Carcinoma

This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of the body (extensive stage). Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving radiation therapy in addition to atezolizumab may extend the time without extensive small cell lung cancer growing or spreading compared to atezolizumab alone.

This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of the body (extensive stage). Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving radiation therapy in addition to atezolizumab may extend the time without extensive small cell lung cancer growing or spreading compared to atezolizumab alone.

This phase I/II trial tests the safety, side effects, and best dose of iadademstat when given together with atezolizumab or durvalumab, and studies the effect of the combination in treating patients with small cell lung cancer that has spread outside of the lung in which it began or to other parts of the body (extensive stage) who initially received standard of care chemotherapy and immunotherapy. Iadademstat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Immunotherapy with monoclonal antibodies, such as atezolizumab or durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Adding iadademstat to either atezolizumab or durvalumab may be able to stabilize cancer for longer than atezolizumab or durvalumab alone in treating patients with extensive stage small cell lung cancer.

This phase II trial studies the effects of temozolomide and atezolizumab as second or third line treatment for patients with small cell lung cancer that has spread to other places in the body (metastatic) or has come back (recurrent). Chemotherapy drugs, such as temozolomide, 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. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving temozolomide and atezolizumab as second or third line treatment may help prolong survival in patients with small cell lung cancer.

This phase II trial tests how well biomarker tests on patients tumor tissue works in selecting personalized treatments for patients with extensive stage small cell lung cancer (ES-SCLC). Biomarker tests look for certain features in cancer cells that may give doctors more information about what is driving cancer and how to treat it. Based on the biomarker test results, study doctors can determine the subtype of ES-SCLC that study treatments can target. This study also tests different types of maintenance treatment for ES-SCLC with drugs durvalumab, saruparib, ceralasertib or monalizumab. Maintenance treatment is given after initial treatment and is given to help keep the cancer under control and prevent it from getting worse. Immunotherapy with monoclonal antibodies, such as durvalumab and monalizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Saruparib is a PARP inhibitor. PARP is a protein that helps repair damaged deoxyribonucleic acid (DNA). Blocking PARP may prevent cancer cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy. Ceralasertib may stop the growth of tumor cells and may kill them by blocking some of the enzymes needed for tumor cell growth. Giving biomarker selected personalized maintenance treatment with durvalumab, saruparib, ceralasertib or monalizumab may work better in treating patients with ES-SCLC.

This phase II trial tests the effect of tarlatamab in treating patients with small cell lung cancer (SCLC) that has spread from where it first started to other parts of the body (extensive-stage). SCLC is an aggressive cancer which has a low 5-year survival rate. Tarlatamab is a bispecific antibody that can bind to two different antigens at the same time. Tarlatamab binds to DLL3 which is a protein found on the surface of some types of tumor cells, including small-cell lung cancer, and to CD3 which is present on immune system T-cells (a type of white blood cell) and may interfere with the ability of tumor cells to grow and spread. This may increase the length of time to progression (growing, spreading, or getting worse) and help patients with extensive-stage SCLC live longer.

This phase II trial studies the effect of lamivudine in combination with standard of care chemoimmunotherapy in treating patients with extensive stage small cell lung cancer. Even though small cell lung cancer is initially highly responsive to first-line chemotherapy treatment, treatment resistance inevitably emerges; treatment resistance is when tumor cells stop responding to a drug treatment that they had previously responded to. Lamivudine is an oral antiviral a drug that may be able to reduce the ability of tumors to develop drug resistance. Chemotherapy drugs, such as carboplatin and etoposide, 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. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving lamivudine together with the usual standard of care chemoimmunotherapy may help prevent the growth and spread of the tumor cells to other parts of the body.

This phase I trial aims to determine if it is safe to use palliative radiotherapy and lurbinectedin at the same time to treat small cell lung cancer that has spread outside of the chest and that has grown after being treated with chemotherapy (extensive stage). Lurbinectedin kills tumor cells by blocks a process called transcription that small cell lung cancer relies on to survive. It also damages the deoxyribonucleic acid (DNA) of tumor cells, which is similar to the way radiation kills tumor cells. Palliative radiotherapy is a routine medical treatment for patients who have lung cancer that has spread to other parts of the body (metastatic), and is used to relieve symptoms caused by cancer or to patients from developing symptoms. This trial may help doctors understand if treating patients with lurbinectedin and palliative radiotherapy at the same time would make them both work better than either one alone or if they could cause more side effects for patients when given together.

This phase III trial compares the effect of adding radiation therapy to the usual maintenance therapy with adebrelimab versus adebrelimab alone in patients who have already received debrelimab plus chemotherapy for the treatment of extensive stage small cell lung cancer.

This phase I/II trial studies the side effects, safety, and effectiveness of low dose radiation to the entire body (total body irradiation \[TBI\]) and higher dose radiation to known areas of cancer (hypofractionated radiation therapy \[H-RT\]) combined with atezolizumab and chemotherapy (carboplatin \& etoposide) in treating patients with small cell lung cancer that has spread to disease sites outside of the lung (extensive stage). Extensive stage disease has historically been treated with chemotherapy alone with consideration of chest (thoracic) radiation therapy for those with response to chemotherapy, as well as consideration of preventative radiation therapy to the head (prophylactic cranial irradiation). Emerging evidence supports the synergistic interactions between immunotherapy and radiation therapy. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Carboplatin is in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of tumor cells. Etoposide is in a class of medications known as podophyllotoxin derivatives. It blocks a certain enzyme needed for cell division and DNA repair and may kill tumor cells. Combining TBI and H-RT with atezolizumab and chemotherapy may improve response to treatment.