This phase II trial studies the effect of hypofractionated radiotherapy followed by surgery in treating patients with soft tissue sarcoma. Hypofractionated radiation therapy delivers higher doses of radiation therapy over a shorter period of time and may kill more tumor cells and have fewer side effects. Giving hypofractionated radiotherapy followed by surgery may allow patients with sarcomas to be treated in a much more rapid and convenient fashion.

This phase II trial studies how well pembrolizumab after standard treatment with radiation plus the following chemotherapy drugs: cisplatin or carboplatin, plus etoposide works in treating patients with limited stage small cell lung cancer (LS-SCLC). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab after standard treatment with radiation plus chemotherapy may increase the ability of the immune system to fight LS-SCLC.

This is a Phase II, single arm, multi-center trial, designed to estimate the efficacy and
toxicity of haploidentical bone marrow transplantation (BMT) in patients with sickle cell
disease (SCD). Based on their age and entry criteria patients are stratified into two groups:
(1) children with severe SCD; and (2) adults with severe SCD.

This phase II trial investigates the effect of avelumab or hydroxychloroquine sulfate with or without palbociclib in treating patients with stage II-III breast cancer that is positive for disseminated tumor cells (DTCs) after curative therapy. DTCs are breast cancer cells that are asleep (dormant) in the bone marrow. There are multiple ways in which these cells stay alive, and three of these mechanisms are inhibited by the drugs in this trial. First, dormant cancer cells need a protein signal pathway involving CDK 4/6 to start dividing once they wake up in order to survive as an active cancer cell. Palbociclib works by blocking the CDK 4/6 protein and by doing so may limit the dormant cancer cell from being able to survive. In addition, palbociclib may also help both of the other drugs in the trial to work better. Second, dormant cancer cells also use a process called autophagy to generate their own nutrition, which can allow them to stay asleep. Hydroxychloroquine has been shown to block autophagy, which leads to starvation of the cells. Third, dormant cancer cells are able to hide from the bodys immune system. The immune system sends a type of cell called T cells throughout the body to detect and fight infections and diseasesincluding cancers. One way the immune system controls the activity of T cells is through the PD-1/PD-L1 (programmed cell death protein-1) pathway. However, some cancer cells hide from T-cell attack by taking control of the PD-1/PD-L1 interaction and this stops T cells from attacking cancer cells. Avelumab is an antibody designed to block the PD-1/PD-L1 pathway and helps the immune system in detecting and fighting dormant cancer cells. Because palbociclib, hydroxychloroquine, and avelumab work on the mechanisms that keep the dormant cells alive, taking one or a combination of these drugs may be able to eliminate DTCs.

This phase II trial studies how well acalabrutinib works in treating patients with chronic graft versus host disease. Acalabrutinib may be an effective treatment for graft-versus-host disease caused by a stem cell transplant.

The goal of this clinical trial is to test a new drug plus standard treatment compared with
standard treatment alone in patients with advanced head and neck squamous cell carcinoma and
cholangiocarcinoma.

The main questions it aims to answer are:

- is the new drug plus standard treatment safe and tolerable

- is the new drug plus standard treatment more effective than standard treatment

This phase II trial tests whether reduced dose radiation therapy after transoral robotic surgery works in treating patients with human papillomavirus (HPV)-positive oropharyngeal cancer. HPV positive oropharyngeal cancer has a better prognosis than oropharyngeal cancer not caused by HPV. A standard of care treatment for HPV positive oropharyngeal cancer is transoral robotic surgery followed by radiation therapy. However, this treatment is associated with many long-term side effects including difficulty swallowing. Radiation therapy uses high energy rays to kill tumor cells and shrink tumors. Giving reduced dose radiation therapy after transoral robotic surgery may improve swallowing outcomes and quality of life compared to standard of care dose radiation therapy after transoral robotic surgery.

This is a prospective, multi-center, Phase II study of hematopoietic cell transplantation
(HCT) using human leukocyte antigen (HLA)-mismatched unrelated donors (MMUD) for peripheral
blood stem cell transplant in adults and bone marrow stem cell transplant in children.
Post-transplant cyclophosphamide (PTCy), tacrolimus and mycophenolate mofetil (MMF) will be
used for for graft versus host disease (GVHD) prophylaxis. This trial will study how well
this treatment works in patients with hematologic malignancies.

This phase II trial tests whether treosulfan, fludarabine, and rabbit antithymocyte globulin (rATG) work when given before a blood or bone marrow transplant (conditioning regimen) to cause fewer complications for patients with bone marrow failure diseases. Chemotherapy drugs, such as treosulfan, 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. Fludarabine may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. rATG is used to decrease the body's immune response and may improve bone marrow function and increase blood cell counts. Adding treosulfan to a conditioning regimen with fludarabine and rATG may result in patients having less severe complications after a blood or bone marrow transplant.

This phase II trial studies the effect of lutetium Lu 177 dotatate compared to the usual treatment (everolimus) in treating patients with somatostatin receptor positive bronchial neuroendocrine tumors that have spread to other places in the body (advanced). Radioactive drugs, such as lutetium Lu 177 dotatate, may carry radiation directly to tumor cells and may reduce harm to normal cells. Lutetium Lu 177 dotatate may be more effective than everolimus in shrinking or stabilizing advanced bronchial neuroendocrine tumors.