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Vorinostat to Prevent Graft Versus Host Disease Following Reduced Intensity, Related Donor Stem Cell Transplant

Phase II Trial of Vorinostat Plus Tacrolimus & Mycophenolate to Prevent Graft Versus Host Disease Following Reduced Intensity Conditioning Related Donor Allogeneic Transplant

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00810602
Enrollment
61
Registered
2008-12-18
Start date
2009-01-31
Completion date
2013-07-31
Last updated
2014-04-11

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

Conditions

Hematologic Malignancies, Graft vs Host Disease

Brief summary

The proposed research study is to test the drug vorinostat, in a new use as an additional medication, with other standard treatments for the prevention of severe acute graft versus host disease (GVHD). If this treatment is safe and effective, when combined with a reduced intensity transplant, the research may achieve a more effective therapy for patients with high-risk, blood cell related cancers. All subjects will receive an identical, known treatment to test if the treatment is safe and effective (a phase II trial). For patients to take part they must have a high-risk, blood cell cancer, be suitable candidates to receive a reduced intensity transplant and have a matched, related donor. Adult subjects (age 18 years and older) will be considered as subjects provided, as detailed in the protocol, they meet additional criteria and are not excluded from participating. About fifty (50) subjects will be enrolled in this study at the University of Michigan. Patients who receive blood stem cell transplants (HSCT), also called bone marrow transplants, to treat their cancer are at risk for serious complications, which may sometimes be fatal. The more common, serious ones are relapse (return of their disease), body organ injury from the intensity of the chemotherapy given prior to their transplant, and a serious complication called graft versus host disease (GVHD). GVHD is a form of rejection, where the transplanted cells of the donor attack the recipient's body as foreign, and do damage to organs and tissues. To decrease the side effects of the chemotherapy given before a transplant, reduced intensity treatment plans(regimens)have recently been developed at a number of transplant centers. A decrease in the side effects of chemotherapy (called toxicities) has been achieved; however, this success with less intensive treatments has been partially offset by less successful results in controlling the patient's cancer. As mentioned above, GVHD is a form of transplant rejection. GVHD can affect the digestive system, skin, liver and other body systems. GVHD can increase the risk of infection. After a matched, related donor stem cell transplant, GVHD when severe, is a major cause of discomfort, organ damage, and even death. When a graft vs host reaction develops, but is kept under control, studies show there may be a beneficial graft versus tumor effect, helping to destroy tumor cells in the patient, and thus providing a more effective control of their cancer. The goal of this study is to try to maximize the potential benefits, of giving patients less intense chemotherapy to reduce the toxic effects, letting the graft vs host effect help in destroying tumor cells, but preventing acute severe GVHD by using the drug vorinostat, combined with standard medicines, to reduce the chance of serious GVHD-related complications.

Interventions

PROCEDUREreduced intensity, related donor stem cell transplant

Fludarabine /Busulfan(FluBu2)regimen Fludarabine: 40 mg/m2/day in 0.9 NS, administered IV on days -5 to day -2 pre-transplant for a total of 4 doses. Busulfan: 3.2 mg/kg in 0.9 NS administered IV on days -5 and -4 for a total of 2 doses. Total body irradiation 200 cGy delivered in a single fraction will be given on day 0 for patients receiving an HLA-mismatched transplant.

Tacrolimus will begin on day -3, IV or oral. Target trough level for tacrolimus is 8-12 ng/ml. In the absence of GVHD, tacrolimus tapering will begin on day +56 post transplant

Mycophenolate will begin on day 0 at 10 mg/kg/dose (up to 1 gram per dose) every 8 hours orally or intravenously and will continue until day 28.

DRUGvorinostat

Vorinostat given at a dose 100 mg PO BID starting day -10. If tolerated, vorinostat will be continued until day 100 post-transplant,whether or not acute GVHD develops. Dose escalation/ de-escalation Ten subjects treated at a dose of 100 mg PO BID. If dosing modifications are not required, during the pre-engraftment period in more than 4 patients, AND no more than two observed drug related toxicities CTC grade 4 or higher \[probably or definitely related to the drug\] then vorinostat dose will be escalated to 200 mg PO BID. If dose escalation does not occur due to failure to meet the above criteria,then the study will enroll at the 100 mg PO BID dosing, subject to the protocol stopping rules. If dose escalation occurs, subjects will be treated at 200 mg PO BID dosing level. If the probability of unacceptable toxicity exceeds the rules in protocol, then the dose of vorinostat will be de-escalated to 100 mg PO BID for the remainder of study.

Sponsors

Pavan Reddy, MD
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

* Have a 7/8 or 8/8 HLA A, B, C and DR, HLA-matched related donor willing and able to donate allogeneic stem cells. * For patients with multiple myeloma, CLL, and lymphoma: must be in CR, PR, or stable disease. * For MDS, acute leukemia or CML: must have \<20% blasts on marrow exam. * For all other diseases: must have non-refractory disease. and meet at least ONE of the next three criteria: * Any patient ≥ 18 years of age with a hematological malignancy and not considered a candidate for allogeneic myeloablative transplant due to illness and/or age (≥55 years). * Any patient ≥ 18 years of age who has relapsed following prior autologous or allogeneic transplant for a hematologic malignancy. * Any patient ≥ 18 years of age diagnosed with a hematological malignancy for which reduced intensity transplant is institutionally preferred over myeloablative transplant (eg, chronic lymphocytic leukemia).

Exclusion criteria

* Less than 18 years of age. * Currently taking any HDAC inhibitors, or have taken an HDAC inhibitor within 30 days of the trial. * Positive serum tests for HIV, HTLV1 / HTLV2. * Detectable hepatitis B virus (HBV), hepatitis C (HCV) or Epstein-Barr (EBV). * Pregnancy. * One or more of the following organ system function criteria * Cardiac: Ejection fraction ≤ 40% * Renal: Estimated or actual GFR ≤ 40 ml/min (corrected for BSA) * Pulmonary: FEV1, FVC, or DLCO ≤ 40% predicted * Hepatic: Total bilirubin ≥3 mg% and AST/ALT \>5 x institutional normal for age * Karnofsky score ≤50 (Requires considerable assistance and frequent medical care). * Persistent invasive infections not controlled by antimicrobial medication. * Any physical or psychological condition that, in the opinion of the investigator, would pose unacceptable risk to the patient.

Design outcomes

Primary

MeasureTime frameDescription
100-day Cumulative Incidence of Grade 2-4 Acute Graft Versus Host Disease (GVHD)100 daysAssess if the addition of Vorinostat to standard GVHD prophylaxis regimen can reduce the rate of grades 2-4 acute GVHD when compared to 48% in a cohort of identically treated RIC HSCT patients without vorinostat. A reduction of incidence to less than 25% will be considered successful.

Secondary

MeasureTime frameDescription
Number of Serious Adverse Events100 daysThe safety and feasibility will be partially measured by the number of serious adverse events (SAE) recorded by participants receiving at least one dose of Vorinostat.
Percent Cumulative Incidence of Relapse at 2 Years.two yearsDetermine the cumulative incidence of relapse at 2 years.
Percent Survival at 2-yearstwo yearsTo determine 2-year overall survival rate

Countries

United States

Participant flow

Recruitment details

From March 2008 through February 2013, eligible patients with advanced hematological cancers were enrolled at the University of Michigan and Washington University in St. Louis.

Pre-assignment details

All patients received a preparative regimen of intravenous fludarabine (40 mg/m2 on day -5 through day -2) and busulfan (3.2 mg/kg on days -5 and -4) (FluBu2) followed by the infusion of peripheral blood stem cells (PBSC) on day 0. GVHD prophylaxis consisted of tacrolimus initiated on day -3 and mycophenolate mofetil (MMF) on day 0 through day 28.

Participants by arm

ArmCount
Vorinostat Prophylaxis
Vorinostat, combined with standard GVHD prevention medications(tacrolimus, mycophenolate) for adults who received a reduced intensity, related donor stem cell transplant. Vorinostat was administered daily starting ten days prior to the stem cell infusion and continued through day 100 post-HSCT. If tolerated, vorinostat will be continued until day 100 post-transplant,whether or not acute GVHD develops. The phase 1 portion of the study tested two doses of vorinostat, 100 mg BID and 200 mg BID.The first ten patients received vorinostat 100 mg BID, followed by nine patients who received the 200 mg BID dose. Although no dose-limiting toxicities were reached at the 200 mg BID dose, there was an increased incidence of protocol-driven dose modifications, primarily due to non-symptomatic thrombocytopenia after engraftment. Consequently, the 100 mg BID dose was selected as the phase 2 dose for the remaining patients.
50
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyWithdrawal by Subject83

Baseline characteristics

CharacteristicVorinostat Prophylaxis
Age, Continuous59 years
CD34+ Count (10^6 cells/kg)5.0 Count (10^6 cells/kg)
CMV Status
R-, D+
6 participants
CMV Status
R+, D-
7 participants
CMV Status
R+, D+
17 participants
CMV Status
Recipient and Donor negative
20 participants
CMV Status
Recipient or Donor positive (detailed below)
30 participants
Comorbidity index
High
27 participants
Comorbidity index
Intermediate
15 participants
Comorbidity index
Low
8 participants
Diagnosis
Acute biphenotypic leukemia
1 participants
Diagnosis
Acute myelogenous leukemia
19 participants
Diagnosis
Chronic lymphocytic leukemia
4 participants
Diagnosis
Myelodysplastic syndrome
10 participants
Diagnosis
Myeloproliferative disorder or myelofibrosis
4 participants
Diagnosis
Non-Hodgkin's lymphoma
12 participants
Disease Status
High
5 participants
Disease Status
Intermediate
20 participants
Disease Status
Low
25 participants
Donor Type
Matched related
46 participants
Donor Type
One-antigen mismatched related
4 participants
Engraftment Day
Neutrophil
12 days
Engraftment Day
Platelet
12 days
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
46 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
Sex: Female, Male
Female
22 Participants
Sex: Female, Male
Male
28 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
51 / 58
serious
Total, serious adverse events
31 / 58

Outcome results

Primary

100-day Cumulative Incidence of Grade 2-4 Acute Graft Versus Host Disease (GVHD)

Assess if the addition of Vorinostat to standard GVHD prophylaxis regimen can reduce the rate of grades 2-4 acute GVHD when compared to 48% in a cohort of identically treated RIC HSCT patients without vorinostat. A reduction of incidence to less than 25% will be considered successful.

Time frame: 100 days

Population: evaluable

ArmMeasureValue (NUMBER)
Vorinostat Prophylaxis100-day Cumulative Incidence of Grade 2-4 Acute Graft Versus Host Disease (GVHD)22 percentage of participants
Comparison: Hypothesis: The addition of vorinostat will reduce the incidence of grade 2-4 acute graft versus host disease (GVHD) to 25% or lower by day 100.95% CI: [13, 36]
Secondary

Number of Serious Adverse Events

The safety and feasibility will be partially measured by the number of serious adverse events (SAE) recorded by participants receiving at least one dose of Vorinostat.

Time frame: 100 days

Population: The number of patients who received at least one dose of vorinostat.

ArmMeasureValue (NUMBER)
Vorinostat ProphylaxisNumber of Serious Adverse Events33 Number of Serious Adverse Events
Secondary

Percent Cumulative Incidence of Relapse at 2 Years.

Determine the cumulative incidence of relapse at 2 years.

Time frame: two years

Population: evaluable subjects

ArmMeasureValue (NUMBER)
Vorinostat ProphylaxisPercent Cumulative Incidence of Relapse at 2 Years.16 percentage of participants
95% CI: [8, 30]
Secondary

Percent Survival at 2-years

To determine 2-year overall survival rate

Time frame: two years

Population: evaluable subjects

ArmMeasureValue (NUMBER)
Vorinostat ProphylaxisPercent Survival at 2-years73 percentage of subjects

Source: ClinicalTrials.gov · Data processed: Mar 22, 2026