Patients will be registered prior to, during or at the completion of neoadjuvant chemotherapy
(Paclitaxel 175 mg/m2 IV over 3 hours and Carboplatin AUC 6 IV on Day 1 every 21 days for 3-4
cycles). Registered patients who progress during neoadjuvant chemotherapy will not be
eligible for iCRS and will be removed from the study.

Following completion of neoadjuvant chemotherapy, interval cytoreductive surgery (iCRS) will
be performed in the usual fashion in both arms. Patients will be randomized at the time of
iCRS (iCRS must achieve no gross residual disease or no disease >1.0 cm in largest diameter)
to receive HIPEC or no HIPEC. Patients randomized to HIPEC (Arm A) will receive a single dose
of cisplatin (100mg/m2 IP over 90 minutes at 42 C) as HIPEC. After postoperative recovery
patients will receive standard post-operative platinum-based combination chemotherapy.
Patients randomized to surgery only (Arm B) will receive postoperative standard chemotherapy
after recovery from surgery.

Both groups will receive an additional 2-3 cycles of platinum-based combination chemotherapy
per institutional standard (Paclitaxel 175 mg/m2 IV over 3 hours and Carboplatin AUC 6 IV on
Day 1 every 21 days for 2-3 cycles) for a maximum total of 6 cycles of chemotherapy
(neoadjuvant plus post-operative cycles) followed by niraparib individualized dosing until
progression or 36 months (if no evidence of disease).

This trial will be a randomized controlled study comparing the efficacy and safety of
intraoperative radiation therapy using GammaTilesTM (GT) versus SRT 3-4 weeks following
metastatic tumor resection which is the current standard of care.

This phase III trial compares the effect of open thoracic surgery (thoracotomy) to thoracoscopic surgery (video-assisted thoracoscopic surgery or VATS) in treating patients with osteosarcoma that has spread to the lung (pulmonary metastases). Open thoracic surgery is a type of surgery done through a single larger incision (like a large cut) that goes between the ribs, opens up the chest, and removes the cancer. Thoracoscopy is a type of chest surgery where the doctor makes several small incisions and uses a small camera to help with removing the cancer. This trial is being done evaluate the two different surgery methods for patients with osteosarcoma that has spread to the lung to find out which is better.

This phase III trial studies how well inguinal lymph node dissection (ILND) surgery alone or after chemotherapy with or without intensity-modulated radiation therapy works in treating patients with penile cancer that has spread to other places in the body. Surgery is used to remove the lymph nodes and may be able to cure the cancer. Drugs used in chemotherapy, such as paclitaxel, ifosfamide, and cisplatin, 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. Intensity-modulated radiation therapy uses high-energy x-rays to kill tumor cells and shrink tumors. It is not known whether having surgery after chemotherapy with or without radiation therapy is better than having surgery alone.

This phase III trial compares the effect of adding chemotherapy (doxorubicin or epirubicin hydrochloride [epirubicin] with ifosfamide or dacarbazine) before standard surgery versus surgery alone in improving long-term survival in patients with retroperitoneal sarcomas that are able to be removed by surgery (resectable). Chemotherapy drugs, such as doxorubicin, epirubicin, ifosfamide, and dacarbazine, 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. Giving chemotherapy before surgery may make the tumor smaller and easier to remove and may increase patient survival, compared to surgery alone.