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PROACTIVE: Preventing Acute/Chronic GVHD With TocIlizumab Combined With GVHD Prophylaxis Post allogEneic Transplant

PROACTIVE: Prevention of Acute and Chronic GVHD Using TocIlizumab in Combination With Standard GVHD Prophylaxis After allogEneic Transplantation

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03699631
Enrollment
29
Registered
2018-10-09
Start date
2018-11-06
Completion date
2023-04-01
Last updated
2023-04-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hematologic Malignancy

Brief summary

This is a phase II open-label trial designed to evaluate the efficacy of tocilizumab in improving GVHD-free/relapse-free survival (GRFS) after allogeneic hematopoietic cell transplantation (alloHCT) for hematologic malignancy.

Detailed description

The research team earlier hypothesized and demonstrated that tocilizumab could attenuate the incidence of acute GVHD (aGVHD) after myeloablative conditioning (MAC) and reduced intensity conditioning (RIC) Allogeneic hematopoietic cell transplantation (alloHCT), using matched sibling or unrelated donor. In this study, the research team hypothesizes that longer term interleukin 6 (IL-6) inhibition through treatment with tocilizumab by repeated dosing would mediate a beneficial effect not only on the risk of aGVHD, but also on chronic GVHD. This will be achieved by administering an additional dose of tocilizumab at Day +100 post-alloHCT, besides the pretransplant dose, as done in our previous clinical trial, thereby providing total prophylaxis against both acute and chronic GVHD.

Interventions

DRUGTacrolimus

Tacrolimus will be given intravenously at a dose of 0.03 mg/kg/day starting Day -3. Subsequent dosing will be based on blood levels.

DRUGMethotrexate

Methotrexate will be administered at the doses of 15 mg/m2 IV bolus on Day +1, and 10 mg/m2 IV bolus on Days +3, +6 and +11 after hematopoietic cell infusion.

DRUGTocilizumab

Tocilizumab will be administered intravenously (IV) at a dose of 8 mg/kg (maximum dose of 800 mg) once on the Day -1 approximately 24 hours prior to the estimated time of the hematopoietic cell infusion, and subsequently, on Day +100 (+/- 14 days, i.e., Days +86 to +114) post-alloHCT. The infusion will be administered over 60 minutes through a dedicated IV line and must not be administered by IV bolus.

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Medical College of Wisconsin
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥18 years. 2. Patients with any hematologic malignancy for which alloHCT is indicated. Patients with acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL) must be in complete remission at the time of alloHCT(\<5% blasts in the bone marrow, normal maturation of all cellular components in the bone marrow and absence of extramedullary disease). 3. Myeloablative conditioning (MAC) regimen, based on Center for International Blood and Marrow Transplant Research (CIBMTR) criteria. 4. T cell-replete peripheral blood graft. 5. Patients must have a matched related or unrelated donor (at least 6/6 match at human leukocyte antigens (HLA) -A, -B and -C for related donors and at least 8/8 match at HLA-A, -B, -C and -DRB1 for unrelated donors). 6. Cardiac function: Left ventricular ejection fraction ≥45% for myeloablative conditioning. 7. Estimated creatinine clearance ≥40 mL/minute (using the Cockcroft-Gault formula and actual body weight). 8. Pulmonary function: Diffusing capacity of the lungs for carbon monoxide (DLCO) ≥40% (adjusted for hemoglobin) and Forced Expiratory Volume (FEV1) ≥50%. 9. Liver function: total bilirubin \<3 x upper limit of normal and alanine aminotransferase (ALT) / aspartate aminotransferase (AST) \<5 x upper normal limit. 10. Signed informed consent: Voluntary written consent must be given before patient registration and performance of any study related procedure not part of standard medical care, with the understanding that consent may be withdrawn by the patient at any time without prejudice to future medical care. 11. Female patient: A negative pregnancy test will be required for women of child bearing potential. Breast-feeding or lactation is not permitted. 12. Planned posttransplant maintenance therapy is allowed.

Exclusion criteria

1. Prior allogeneic HCT. 2. Active central nervous system (CNS) involvement with malignancy. 3. Patients receiving cord blood or haploidentical allograft. 4. Patients undergoing in vivo or ex vivo T cell-depleted alloHCT. 5. Karnofsky Performance Score \<60%. 6. Patients with uncontrolled bacterial, viral or fungal infections (currently on treatment and with progression of infectious disease or no clinical improvement) at time of enrollment. 7. Active hepatitis B or C virus infection or known human immunodeficiency virus (HIV) positive. 8. Prior intolerance or allergy to tocilizumab. 9. Use of rituximab, alemtuzumab, anti-thymocyte globulin (ATG) or other monoclonal antibody planned as part of conditioning regimen for GVHD prophylaxis. 10. History of diverticulitis, Crohn's disease or ulcerative colitis. 11. History of demyelinating disorder. 12. Any current uncontrolled cardiovascular conditions, including uncontrolled ventricular arrhythmias, New York Heart Association (NYHA) class III or IV congestive heart failure, uncontrolled angina, or electrocardiographic evidence of active ischemia or active conduction system abnormalities. 13. Any serious medical or psychiatric illness that could, in the investigator's opinion, potentially interfere with the completion of treatment according to this protocol.

Design outcomes

Primary

MeasureTime frameDescription
The Number of Patients With GVHD/Relapse-free (GRFS) SurvivalDay 365GRFS is defined as survival without grade III-IV acute graft versus host disease (GVHD), systemic therapy requiring chronic GVHD, relapse, or death at 12 months after matched related/unrelated donor bone marrow or peripheral blood allogeneic hematopoietic cell transplantation (alloHCT) using myeloablative conditioning (MAC). Patients who are alive without GVHD will be censored at the last follow-up.

Countries

United States

Participant flow

Recruitment details

Thirty-one subjects signed consent, but two did not meet final eligibility criteria and were not enrolled.

Participants by arm

ArmCount
Tacrolimus/Methotrexate/Tocilizumab
Patients enrolled on the clinical trial will receive tacrolimus initiating at Day -1 at doses to maintain therapeutic levels per institutional preference and continued until at least Day +90 post-transplant. Methotrexate will be administered intravenously and dosed at 15 mg/m2 Day +1 and 10 mg/m2 Days +3, +6 and +11. Tocilizumab will be administered intravenously at a dose of 8 mg/kg on Day -1 and at day +100 (+/- 14 days). Tacrolimus: Tacrolimus will be given intravenously at a dose of 0.03 mg/kg/day starting Day -3. Subsequent dosing will be based on blood levels. Methotrexate: Methotrexate will be administered at the doses of 15 mg/m2 IV bolus on Day +1, and 10 mg/m2 IV bolus on Days +3, +6 and +11 after hematopoietic cell infusion. Tocilizumab: Tocilizumab will be administered intravenously (IV) at a dose of 8 mg/kg (maximum dose of 800 mg) once on the Day -1 approximately 24 hours prior to the estimated time of the hematopoietic cell infusion, and subsequently, on Day +100 (+/- 14 days, i.e., Days +86 to +114) post-allogeneic hematopoietic cell transplantation. The infusion will be administered over 60 minutes through a dedicated IV line and must not be administered by IV bolus.
29
Total29

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event3

Baseline characteristics

CharacteristicTacrolimus/Methotrexate/Tocilizumab
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
28 Participants
Age, Continuous49.0 years
STANDARD_DEVIATION 10.7
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
28 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
27 Participants
Region of Enrollment
United States
29 participants
Sex: Female, Male
Female
13 Participants
Sex: Female, Male
Male
16 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 29
other
Total, other adverse events
28 / 29
serious
Total, serious adverse events
28 / 29

Outcome results

Primary

The Number of Patients With GVHD/Relapse-free (GRFS) Survival

GRFS is defined as survival without grade III-IV acute graft versus host disease (GVHD), systemic therapy requiring chronic GVHD, relapse, or death at 12 months after matched related/unrelated donor bone marrow or peripheral blood allogeneic hematopoietic cell transplantation (alloHCT) using myeloablative conditioning (MAC). Patients who are alive without GVHD will be censored at the last follow-up.

Time frame: Day 365

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Tacrolimus/Methotrexate/TocilizumabThe Number of Patients With GVHD/Relapse-free (GRFS) Survival25 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026