Autologous Stem Cell Transplantation

The primary purpose of the Research Database is to have a comprehensive source of observational data that can be used to study HSC transplantation and cellular therapies. A secondary purpose of the Research Database is to have a comprehensive source of data to study marrow toxic injuries. Objectives: To learn more about what makes stem cell transplants and cellular therapies work well such as: * Determine how well recipients recover from their transplants or cellular therapy; * Determine how recovery after a transplant or cellular therapy can be improved; * Determine how a donor's or recipient's genetics impact recipient recovery after a transplant or cellular therapy; * Determine how access to transplant or cellular therapy for different groups of patients can be improved; * Determine how well donors recover from the collection procedures.

Patients who receive a chemotherapy called melphalan are at high risk of having nausea and vomiting. A medication called olanzapine has been shown to decrease nausea and vomiting after chemotherapy. A previous research study found the 10 mg dose of olanzapine (combined with 3 standard medications used routinely to prevent nausea/vomiting) to be effective for patients who received melphalan chemotherapy, but several other studies have shown many patients have a side effect of sleepiness (e.g., sedation) with that dose of the medication. Our study will compare two lower doses of olanzapine (5 mg and 2.5 mg) in combination with the 3 standard medications used to prevent nausea/vomiting in the patients who receive melphalan chemotherapy to determine which dose is effective in preventing nausea and vomiting with the lowest amount of sleepiness side effect.

The primary purpose of the Research Sample Repository is to make blood samples available for research studies related to histocompatibility and hematopoietic cell transplantation (HCT) or other cellular therapy. Representatives of participating centers and investigators or research groups may request access to research samples contained in the Research Sample Repository for the purpose of conducting research including: * investigating molecular explanations for histocompatibility or clinical outcomes through analysis of genomic, epigenetic, or other biomolecular data * evaluating the factors that affect transplant or cellular therapy outcome * studying the distribution of HLA tissue types in different populations * studying the success of transplantation, cellular therapies or supportive care in the management of marrow toxic injuries * performing de-linked (anonymous) research