Trial Outcomes & Findings for Fungal Prophylaxis With Isavuconazole for Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplant (HCT) (NCT NCT03149055)

NCT ID: NCT03149055

Last Updated: 2025-05-16

Results Overview

Clinical failure is measured by: 1. Systemic antifungal therapy for \> 14 consecutive days for suspected fungal infection up to week 14. 2. Breakthrough proven or probable fungal infection during the prophylaxis phase.\* 3. Toxicity leading to permanent discontinuation of prophylaxis 4. Adverse event requiring discontinuation. * The prophylaxis phase was defined as the period from the first dose of isavuconazole through 7 days after discontinuation of isavuconazole.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

99 participants

Primary outcome timeframe

14 weeks post HCT

Results posted on

2025-05-16

Participant Flow

Participant milestones

Participant milestones
Measure
Isavuconazole Prophylaxis
Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose. The minimum duration of prophylaxis with isavuconazole will be through D +60. Beyond day +60 discontinuation is at the discretion of the treating physician. Isavuconazole: Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose.
Overall Study
STARTED
99
Overall Study
COMPLETED
95
Overall Study
NOT COMPLETED
4

Reasons for withdrawal

Reasons for withdrawal
Measure
Isavuconazole Prophylaxis
Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose. The minimum duration of prophylaxis with isavuconazole will be through D +60. Beyond day +60 discontinuation is at the discretion of the treating physician. Isavuconazole: Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose.
Overall Study
Not treated
4

Baseline Characteristics

Fungal Prophylaxis With Isavuconazole for Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplant (HCT)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Isavuconazole Prophylaxis
n=95 Participants
Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose. The minimum duration of prophylaxis with isavuconazole will be through D +60. Beyond day +60 discontinuation is at the discretion of the treating physician. Isavuconazole: Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose.
Age, Continuous
57 years
n=5 Participants
Sex: Female, Male
Female
31 Participants
n=5 Participants
Sex: Female, Male
Male
64 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
77 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
9 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
6 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
7 Participants
n=5 Participants
Race (NIH/OMB)
White
81 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
Region of Enrollment
United States
95 Participants
n=5 Participants
Underlying Disease
Leukemia
51 Participants
n=5 Participants
Underlying Disease
Myelodysplastic syndrome
15 Participants
n=5 Participants
Underlying Disease
Lymphoma
16 Participants
n=5 Participants
Underlying Disease
Other hematologic malignancy
13 Participants
n=5 Participants
Graft Manipulation
Ex vivo T-cell depletion (CD4+ selected)
31 Participants
n=5 Participants
Graft Manipulation
No graft manipulation
64 Participants
n=5 Participants
Donor Type
Matched related
19 Participants
n=5 Participants
Donor Type
Matched unrelated
36 Participants
n=5 Participants
Donor Type
Mismatched related/unrelated
26 Participants
n=5 Participants
Donor Type
Haploidentical
14 Participants
n=5 Participants
Hematopoietic cell transplant (HCT) Source
Peripheral blood (PBSC)
64 Participants
n=5 Participants
Hematopoietic cell transplant (HCT) Source
Bone marrow
17 Participants
n=5 Participants
Hematopoietic cell transplant (HCT) Source
Cord blood
14 Participants
n=5 Participants
Conditioning Regimen Intensity
Myeloablative
53 Participants
n=5 Participants
Conditioning Regimen Intensity
Non-myeloablative
13 Participants
n=5 Participants
Conditioning Regimen Intensity
Reduced intensity
29 Participants
n=5 Participants
Graft versus Host Disease (GvHD) Prophylaxis
Tacrolimus + Methotrexate*
26 Participants
n=5 Participants
Graft versus Host Disease (GvHD) Prophylaxis
Cyclosporine + Mycophenolate Mofetil**
16 Participants
n=5 Participants
Graft versus Host Disease (GvHD) Prophylaxis
Tacrolimus + Mycophenolate Mofetil
2 Participants
n=5 Participants
Graft versus Host Disease (GvHD) Prophylaxis
Cyclophosphamide+Mycophenolate+Tacrolimus or Si***
22 Participants
n=5 Participants
Graft versus Host Disease (GvHD) Prophylaxis
Ex vivo T-cell depletion
29 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 14 weeks post HCT

Clinical failure is measured by: 1. Systemic antifungal therapy for \> 14 consecutive days for suspected fungal infection up to week 14. 2. Breakthrough proven or probable fungal infection during the prophylaxis phase.\* 3. Toxicity leading to permanent discontinuation of prophylaxis 4. Adverse event requiring discontinuation. * The prophylaxis phase was defined as the period from the first dose of isavuconazole through 7 days after discontinuation of isavuconazole.

Outcome measures

Outcome measures
Measure
Isavuconazole Prophylaxis
n=95 Participants
Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose. The minimum duration of prophylaxis with isavuconazole will be through D +60. Beyond day +60 discontinuation is at the discretion of the treating physician. Isavuconazole: Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose.
Clinical Failure of Isavuconazole Prophylaxis by Week + 14 Post Hematopoietic Stem Cell Transplant (HCT)
Completed Treatment
81 Participants
Clinical Failure of Isavuconazole Prophylaxis by Week + 14 Post Hematopoietic Stem Cell Transplant (HCT)
Did not complete treatment, breakthrough IFI
3 Participants
Clinical Failure of Isavuconazole Prophylaxis by Week + 14 Post Hematopoietic Stem Cell Transplant (HCT)
Did not complete treatment, discont d/t toxicity
7 Participants
Clinical Failure of Isavuconazole Prophylaxis by Week + 14 Post Hematopoietic Stem Cell Transplant (HCT)
Did not complete treatment, other reasons
4 Participants

PRIMARY outcome

Timeframe: 26 weeks post HCT

Clinical failure is measured by: 1. Systemic antifungal therapy for \> 14 consecutive days for suspected fungal infection up to week 14. 2. Breakthrough proven or probable fungal infection during the prophylaxis phase.\* 3. Toxicity leading to permanent discontinuation of prophylaxis 4. Adverse event requiring discontinuation. * The prophylaxis phase was defined as the period from the first dose of isavuconazole through 7 days after discontinuation of isavuconazole.

Outcome measures

Outcome measures
Measure
Isavuconazole Prophylaxis
n=95 Participants
Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose. The minimum duration of prophylaxis with isavuconazole will be through D +60. Beyond day +60 discontinuation is at the discretion of the treating physician. Isavuconazole: Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose.
Clinical Failure of Isavuconazole Prophylaxis by Week + 26 Post Hematopoietic Stem Cell Transplant (HCT)
Completed Study
89 Participants
Clinical Failure of Isavuconazole Prophylaxis by Week + 26 Post Hematopoietic Stem Cell Transplant (HCT)
Did Not Complete Study d/t Death
6 Participants

Adverse Events

Isavuconazole Prophylaxis

Serious events: 0 serious events
Other events: 7 other events
Deaths: 6 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Isavuconazole Prophylaxis
n=95 participants at risk
Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose. The minimum duration of prophylaxis with isavuconazole will be through D +60. Beyond day +60 discontinuation is at the discretion of the treating physician. Isavuconazole: Intravenous or oral: Isavuconazonium sulfate 372 mg Q 8hour for 6 doses as loading dose, followed by 372 mg Q day as maintenance dose.
Skin and subcutaneous tissue disorders
Rash
1.1%
1/95 • 14 weeks
AE's leading to Isavuconazole discontinuation were collected
Gastrointestinal disorders
Nausea
1.1%
1/95 • 14 weeks
AE's leading to Isavuconazole discontinuation were collected
Blood and lymphatic system disorders
Anemia
1.1%
1/95 • 14 weeks
AE's leading to Isavuconazole discontinuation were collected
Hepatobiliary disorders
Transaminitis
2.1%
2/95 • 14 weeks
AE's leading to Isavuconazole discontinuation were collected
Investigations
Hyperbilirubinemia
3.2%
3/95 • 14 weeks
AE's leading to Isavuconazole discontinuation were collected

Additional Information

Genovefa Papanicolaou MD

Memorial Sloan Kettering Cancer Center

Phone: 212-639-8361

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place