IMPORTANCEDuring hospitalization for hematopoietic stem cell transplantation (HCT), patients receive high-dose chemotherapy before transplantation and experience significant physical and psychological symptoms and poor quality of life (QOL).OBJECTIVE To assess the effect of inpatient palliative care on patient-and caregiver-reported outcomes during hospitalization for HCT and 3 months after transplantation.DESIGN, SETTING, AND PARTICIPANTS Nonblinded randomized clinical trial among 160 adults with hematologic malignancies undergoing autologous/allogeneic HCT and their caregivers (n = 94). The study was conducted from August 2014 to January 2016 in a Boston hospital; follow-up was completed in May 2016.INTERVENTIONS Patients assigned to the intervention (n=81) were seen by palliative care clinicians at least twice a week during HCT hospitalization; the palliative intervention was focused on management of physical and psychological symptoms. Patients assigned to standard transplant care (n=79) could be seen by palliative care clinicians on request.MAIN OUTCOMES AND MEASURES Primary: change in patient QOL from baseline to week 2; secondary: patient-assessed mood, fatigue, and symptom burden scores at baseline, 2 weeks, and 3 months after HCT and caregiver-assessed QOL and mood at baseline and 2 weeks after HCT. RESULTS Among 160 patients (mean age, 60 [SD, 13.3] years; 91 women [56.9%]; median hospital stay, 21 days) and 94 caregivers, 157 (98.1%) and 89 (94.7%), respectively, completed 2-week followup, and 149 patients (93.1%) completed 3-month follow-up. Intervention patients reported a smaller decrease in QOL from baseline to week 2 vs controls. Intervention patients had less increase in depression,loweranxiety,nodifferenceinfatigue,andlessincreaseinsymptomburden.At3months, intervention patients had higher QOL and less depression but no significant differences in anxiety, fatigue, or symptom burden. From baseline to week 2 after HCT, caregivers of intervention patients vs controls reported no significant differences in QOL or anxiety but had a smaller increase in depression (mean, 0.25 vs 1.80; mean difference, 1.55; 95% CI, 0.14-2.96; P = .03). Patient Outcomes Mean Score at Week 2 Mean Difference Between Groups (95% CI) P Value Standard Care Palliative Care Quality of life (change from baseline) −21.54 −14.72 −6.82 (−13.48 to −0.16) .045 Fatigue −13.65 −10.30 −3.34 (−7.25 to 0.56) .09 Symptom burden 23.14 17.35 5.80 (0.49 to 11.10) .03 Depression 3.92 2.43 1.49 (0.20 to 2.78) .02 Anxiety 1.12 −0.80 1.92 (0.83 to 3.01) <.001CONCLUSIONS AND RELEVANCE Among adults at a single institution undergoing HCT for hematologic malignancy, the use of inpatient palliative care compared with standard transplant care resulted in a smaller decrease in QOL 2 weeks after transplantation. Further research is needed for replication and to assess longer-term outcomes and cost implications.

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This is the first report of the deliberate induction of mixed lymphohematopoietic chimerism after a nonmyeloablative preparative regimen to treat a hematological malignancy and to provide allotolerance for a solid organ transplant.

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