Case Report

DAS181 Treatment of Severe Parainfluenza Virus 3 Pneumonia in Allogeneic Hematopoietic Stem Cell Transplant Recipients Requiring Mechanical Ventilation

Table 1

Summary of cases of DAS181 treatment for PIV3 pneumonia in SCT recipients described in the literature.

Case 1Case 2Case 3Case 4Case 5Case 6Case 7

Age (y)/sex63/F64/F69/M12/M7 months/M4/M3/M

Underlying diseaseAMLUnknownMDSRelapsed ALLSCIDStage 4 neuroblastomaAML

Type of transplantReduced intensity Allogeneic HSCT from MUDNonmyeloablative
Allogeneic HSCT
Allogenic HSCT Double cordSingle cordAutologous HSCTMUD peripheral blood HSCT

GVHDDay 24Chronic ChronicNoneNoneNoneNone

Immune suppression for GVHDCorticosteroids
Mycophenolate
mofetil
Prednisone
Sirolimus
PrednisoneNoneNoneNoneNone

Onset of PIV
 URTIURTI: TxD + 89URTI: TxD + 260URTI: TxD + 71URTI: TxD + 26URTI: TxD + 2
 LRTILRTI: TxD + 1246 y SP SCTLRTI: TxD + 240LRTI: TxD + 275LRTI: TxD + 2LRTI: TxD + 25

Type of PIVPIV3PIV1PIV3PIV3PIV2PIV3PIV3

Radiographic findingsTree in bud opacities, mild diffuse bronchial thickening consistent with viral bronchiolitis on CTGround glass opacities on CTGround glass opacities on CTGround glass opacities on CXR/CTInfiltrates on CXR/CTNew infiltrates on CXR/CT

Clinical symptomsCough, dyspnea, increased oxygen requirementsRespiratory distress, increased oxygen requirementsFever, hemoptysis, and respiratory distress Respiratory distress, increased oxygen requirementsFever, wheezing, and increased oxygen requirementsFever, cough, and cracklesCough, rhinorrhea

CopathogensReactivated CMV viremia (prior to PIV URTI)NoneNoneAdenovirus and hMPV (at time of URTI)
HRV and Adenovirus (at time of LRTI)
None None HRV

Mechanical ventilation NoneIntubatedIntubated NoneNoneNoneNone

DAS181 treatment10 mg/day × 3 days (dry inhaled powder)3.2 mg/day × 3 days (nebulized) and then 4.5 mg/day × 2 days (nebulized and face mask)3.2 mg/day × 3 days and then 4.5 mg/day × 2 days (nebulized)10 mg/day × 10 days (dry powder)0.14 mg/kg per day × 2 days and then 0.2 mg/kg per day × 3 days (nebulized) 0.14 mg/kg per day × 2 days and then 0.2 mg/kg per day × 3 days (nebulized)0.14 mg/kg per day × 10 days (nebulized)

Maximum alkaline phosphatase while on treatment, IU/L (normal range)Not reported240 (35–104)169 (35–104)477 (135–530)298 (95–380)598 (95–380)247 (95–380)

OutcomeDied of relapsed AMLDied AliveAliveAliveAliveAlive

Year/reference2011 [11]2014 [10]2014 [10] 2015 [14]2015 [14]2015 [14]2015 [14]

AML, acute myeloid leukemia; MDS, myelodysplastic syndrome; ALL, acute lymphoblastic leukemia; SCID, severe combined immunodeficiency; MURD, matched unrelated donor; URTI, upper respiratory tract infection; LRTI, lower respiratory tract infection; TxD, transplant day; CXR chest Xray; CT computerized tomography; CMV, cytomegalovirus; hMPV, human metapneumovirus; HRV, human rhinovirus.