Skip to content

Study of Palifermin (Kepivance) in Persons Undergoing Unrelated Donor Allogeneic Hematopoietic Cell Transplantation

A Phase I/II Open Label, Dose Escalation Study of Palifermin (Kepivance) in Persons Undergoing Unrelated Donor Allogeneic Hematopoietic Cell Transplantation

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02356159
Enrollment
34
Registered
2015-02-05
Start date
2015-09-24
Completion date
2025-03-25
Last updated
2025-09-30

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

Conditions

Myelodysplastic Syndromes, Hodgkin's Lymphoma, Non-Hodgkin's Lymphoma, Acute Leukemia, Multiple Myeloma

Keywords

Hematopoietic Stem Cell Transplant, Lymphoma, Leukemia, Unrelated Donors

Brief summary

Background: \- In allogeneic stem cell transplantation (SCT), stem cells are taken from a donor and given to a recipient. Sometimes the recipient's immune system destroys the donors' cells. Or donor immune cells attack the recipient's tissues, called graft-versus-host disease (GVHD). This is less likely when the recipient and donor have similar human leukocyte antigens (HLA). Researchers want to see if the drug palifermin improves the results of allogeneic SCT from HLA-matched unrelated donors. Objective: \- To see if high doses of palifermin before chemotherapy are safe, prevent chronic GVHD, and improve immune function after transplant. Eligibility: \- Adults 18 years of age or older with blood or bone marrow cancer with no HLA-matched sibling donor, but with a HLA-matched unrelated donor. Description of Research Study: * Participants will be screened with medical history, physical exam, and blood and urine tests. They will have scans and heart and lung exams. * Before transplant, participants will: * Have many tests and exams. These include blood tests throughout the study and bone marrow biopsy. * Get a central line catheter if they do not have one. * Have 1-3 rounds of chemotherapy. * Have more tests to make sure they can have the transplant, including medical history, physical exam, blood tests, disease specific restaging. * Get palifermin by intravenous (IV) and conditioning chemotherapy to prepare for hematopoietic stem cell transplantation (HSCT). They will get other drugs; some they will take at least 6 months. * Participants will get the HSCT. * After transplant, participants will: * Be hospitalized at least 3-4 weeks. * Monitored at least weekly for the first 100 days. * Stay near District of Columbia (D.C). for approximately 100 days post-transplant. * After 100 days post-transplant - visit National Institutes of Health (NIH) 5 times the first 2 years, then yearly until 5 years post-transplant. * Additional tests/procedures may be performed to monitor safety, response to transplant, side effects.

Detailed description

Background: * Graft versus host disease (GVHD) and impaired immune reconstitution are major transplant complications and barriers to improving outcomes after allogeneic hematopoietic stem cell transplantation (alloHSCT) for hematologic malignancies. GVHD is initiated when donor T-cells become alloreactive against recipient major or minor histocompatibility antigens. This process may be exacerbated during the transplantation process by exposure of tissue antigens to donor T-lymphocytes after chemotherapy-induced injury. * Palifermin, a recombinant keratinocyte growth factor-1 (KGF-1), imitates the actions of intrinsic KGF and binds to the Fibroblast growth factor (FGF) receptor 2b, which is expressed in the epidermis, oral mucosa, gastrointestinal (GI) mucosa and urothelium, thereby increasing the regenerative capacity of these tissues. Palifermin has been shown to reduce the duration and severity of oral mucositis after intensive chemo-radiotherapy and autologous HSCT for hematologic cancers and is Food and Drug Administration (FDA) approved. In pre-clinical studies, palifermin has been shown to have an effect on control of acute or chronic GVHD and immune reconstitution after alloHSCT. However, subsequent clinical studies in alloHSCT indicate that the dose and schedule of palifermin as currently used in humans does not optimize its activity in terms of prevention of GVHD or thymus recovery following alloHSCT. \- We hypothesize that higher doses of palifermin in the immediate pre alloHSCT conditioning setting will lead to enhanced thymopoiesis, decreased chronic GVHD, and improved immune reconstitution. A dose escalation study is necessary to determine safe dosing levels in persons undergoing alloHSCT. Objectives: * The primary objective of the phase I portion is to assess the safety and tolerability of the administration of the recombinant keratinocyte growth factor (KGF) palifermin in alloHSCT using unrelated donor peripheral blood stem cells. * The primary objective of the phase II portion is to determine the incidence of severe chronic GVHD after the addition of palifermin to TMS (tacrolimus, methotrexate and sirolimus) based GVHD prophylaxis delivered in the identical fashion to the NCI 07-C-0195 study. Eligibility: * Adults (greater than or equal to 18 years) with advanced or high-risk hematologic malignancies (including acute myeloid leukemia (AML), acute lymphoblastic leukemia (ALL), myelodysplastic syndrome (MDS), chronic lymphocytic leukemia (CLL), non-Hodgkin lymphoma (NHL), Hodgkin lymphoma (HL), chronic myeloid leukemia (CML), multiple myeloma, and myeloproliferative neoplasm (MPN) who lack a suitable human leukocyte antigens (HLA)-matched sibling donor. * An unrelated donor matched at a minimum of 8 alleles (HLA-A,-B,-C, and major histocompatibility complex, class II, DR beta 1 (DRB1) by high-resolution typing, identified through the National Marrow Donor Program. * Karnofsky greater than or equal to 60 and acceptable organ functions. Design: * Patients will receive disease-specific induction chemotherapy etoposide phosphate, prednisone, vincristine sulfate, cyclophosphamide, and doxorubicin hydrochloride with fludarabine and rituximab (EPOCH-F/R or fludararbine, ara-c, granulocyte colony-stimulating factor (FLAG) prior to transplant as needed for disease control and immune depletion. * All patients will receive an identical conditioning regimen consisting of cyclophosphamide 1200 mg/m\^2/day intravenous (IV) for 4 days and fludarabine 30 mg/m\^2/day for 4 days (transplant days -6 to -3). * All patients will receive a peripheral blood stem cell product from an unrelated donor matched at HLA-A, -B, -C, -DRB1 (8/8) by high-resolution typing. * Palifermin will be administered in a phase 1, open label design with the following proposed schedule: * Dose level 1: 180 mcg/kg on day -7 * Dose level 2: 360 mcg/kg on day -7 * Dose level 3: 540 mcg/kg on day -7 * Dose level 4: 720 mcg/kg on day -7 * The phase I portion will be conducted in a standard 3+3 design; the maximum possible number of patients accrued to this portion will be 24. * The maximum tolerated dose (MTD) from the phase I portion of the study will be used to conduct a phase II study. Total accrual on the phase II study will be 27 patients, including 3-6 patients treated at the MTD in the phase I portion of the study

Interventions

BIOLOGICALRituximab

Rituximab: 375 mg/m\^2 intravenous (IV) day 1 for patients with cluster of differentiation 20 (CD20)-positive disease.

Fludarabine:30 mg/m\^2 per day intravenous (IV) infusion over 30 minutes, daily on days -6, -5, -4, and -3; Cyclophosphamide:1200 mg/m\^2 per day IV infusion over 2 hours on Days 6, -5, -4, -3. Mesna: 1200 mg/m\^2 per day IV infusion, daily on days 6, -5, -4, and -3 Furosemide: 20 mg IV flat dose on days -6, -5, -4, -3; Furosemide: 20 mg IV flat dose on days -6, -5, -4, -3.

DRUGTMS

Tacrolimus: 0.02 mg/kg, start day 3. Continue intravenous (IV) or by mouth (PO). Taper will begin at day +60 if no acute graft-versus-host disease (GVHD) then at day +100 and discontinue at day +180 as tolerated. Methotrexate: 5 mg/m\^2 IV over 15 minutes on days 1, 3, 6, and 11. Sirolimus: 12 mg PO on days -3 to 60, followed by a taper if GVHD does not develop.

DRUGFLAG

Fludarabine: 25 mg/m\^2 per day intravenous (IV) over 30 minutes, daily on days 1-5 Cytarabine: 2,000 mg/m\^2 IV over 4 hours, on Days 1, 2, 3, 4, 5. Filgrastim: 5 mcg/kg per day subcutaneous (SC) beginning 24 hours PRIOR to initiation of chemotherapy.

Fludarabine: 25 mg/m\^2 per day intravenous (IV) infusion over 30 minutes, daily on days 1-4. Etoposide: 50 mg/m\^2 per day continuous IV infusion over 24 hours on days 1-4. Doxorubicin: 10 mg/m\^2/day continuous intravenous (CIV), days 1-4. Vincristine: 0.4 mg/m\^2 per day continuous IV infusion over 24 hours daily on days 1-4. Cyclophosphamide: 750 mg/m\^2 IV infusion over 30 minutes on day 5. Prednisone: 60 mg/m\^2 per day by mouth (PO) daily on days 1-5. Filgrastim: 5 mcg/kg per day SC or IV.

PROCEDUREHematopoietic stem cell transplant

Hematopoietic stem cell transplant

DRUGPalifermin

Escalating doses of palifermin given during transplant phase.

DRUGAcetaminophen

Before each infusion of rituximab as indicated.

DRUGDiphenhydramine

Before each infusion of rituximab as indicated.

DRUGPrednisone

For engraftment syndrome.

DRUGEpinephrine

Emergency medication as indicated.

Before each infusion of rituximab as indicated.

DIAGNOSTIC_TESTECG

As indicated.

DIAGNOSTIC_TESTECHO

As indicated.

DIAGNOSTIC_TESTMUGA

As indicated.

DIAGNOSTIC_TESTDEXA

As indicated.

DIAGNOSTIC_TESTCT chest

As indicated.

DIAGNOSTIC_TESTPET

As indicated.

DIAGNOSTIC_TESTMRI

As indicated.

PROCEDUREBM aspirate

As indicated.

PROCEDUREBM biopsy

As indicated.

PROCEDURELumbar puncture

As indicated.

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* INCLUSION CRITERIA: Patients meeting below eligibility criteria are eligible to receive suitable disease specific therapy for the purposes of disease control while the donor search takes place * The patient is greater than or equal to 18 years of age. * Ability of subject to understand and the willingness to sign a written informed consent document. * Karnofsky performance score \>= 60. * No suitable HLA matched sibling donor is available, and the patient has one or more potentially suitable HLA matched unrelated donor(s) in the National Marrow Donor Registry or other available registry. * The evaluation of donors shall be in accordance with existing National Marrow Donor Program (NMDP) Standard Policies and Procedures * HLA-matched donors are defined by allele matching at HLA-A, -B, -C, * There is a high likelihood that the patient, in the opinion of the principal investigator (PI) or lead associate investigator (LAI), will meet the research phase eligibility criteria and proceed to transplant after induction phase therapy is completed. * Diagnosis of hematologic malignancy meeting at least one of the disease status criteria outlined in the table below. Diagnoses must be confirmed by the National Cancer Institute (NCI) laboratory of pathology. * Recipients with acute myeloid leukemia (AML) in first complete remission (CR1) must have one of the following: * Adverse cytogenetics (as evaluated by history) as defined as complex karyotype (\> 3 abnormalities); inv(3) or t(3;3); t(6;9); t(6;11); monosomy 7; trisomy 8, alone or with an abnormality other than t(8;21), t(9;11), inv(16) or t(16;16); or t(11;19)(q23;p13.1) or adverse-risk per European LeukemiaNet (ELN) 2017 criteria. * Intermediate-risk disease, such as cytogenetically normal AML (CN-AML) with mutations in FMS-like tyrosine kinase 3 (FLT3), DNA methyl transferase 3A (DMNT3A), or additional sex coombs like 1 (ASXL1) or per ELN 2017 criteria. * Primary induction failure, defined as failure to achieve CR with primary induction chemotherapy. * Secondary AML, defined as AML related to antecedent myeloid neoplasm or cytotoxic chemotherapy. * Hyperleukocytosis, white blood cell (WBC) \> 100,000, at diagnosis. * Recipients with ALL in CR1 must have one of the following: * Adverse cytogenetics defined as translocations involving t(4;11), t(1;19), t(8;14), 11q23, t(9;22) or bcr-abl rearrangement, Philadelphia chromosomelike (Ph-like ALL), or complex cytogenetic abnormalities. * Presence of minimal residual disease using multicolor flow cytometry or other analytic technique after primary induction chemotherapy. * Primary induction failure, defined as failure to achieve complete remission (CR) with primary induction chemotherapy. * Recipients with myelofibrosis must have at least 2 of the following features, or be Dynamic International Prognostic Scoring System (DIPSS) intermediate-2 or high risk: * Hemoglobin \< 10 g/dl, or \> 10 g/dl with transfusion dependence. * WBC \< 4,000 or \> 30,000/mm\^3 or requires cytoreductive therapy to maintain WBC \< 30,000/mm\^3. * Abnormal cytogenetics. * Patients with lymphoma must ideally have at least stable disease from last therapy however if the PI or LAI believes there is a high likelihood of response to induction chemotherapy (EPOCH-F+/R), then the patient may be enrolled on the induction phase arm. For enrollment on the research phase arm, the patient must have at lease stable disease which is defined as: * Absence of disease progression for at least 8 weeks after previous therapy or 12 weeks after autologous transplantation. * Patients who are less than 8 weeks from previous therapy or 12 weeks from autologous transplantation may participate in the study at the discretion of the PI or LAI as long as they do not have progressive disease. * Multiple myeloma in complete remission is defined as per Dr. Brian G.M. Durie (Durie BG) et al. * Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and \<=5% plasma cells in the bone marrow. CR requires two consecutive assessments by serum and urine immunofixation made at any time prior to enrollment. CR also requires no known evidence of progressive or new bone lesions if radiographic studies are performed. Confirmation with repeat bone marrow is not needed. * The recipient has acceptable end organ function as defined by: * Diffusing capacity for carbon monoxide (DLCO) \> 50% of the expected value (using United States of America (USA)-Information Technology Service (ITS)-National Institutes of Health (NIH) equation) when corrected for Hgb (DLCO Adj.) * 24hr creatinine clearance or calculated (using the Cockcroft-Gault formula) creatinine clearance \> 60 ml/min/1.73 (induction phase only) * Left ventricular ejection fraction \> 45% * Serum total bilirubin less than 2.5 mg/dl, and serum alanine aminotransferase (ALT) and aspartate transferase (AST) values less than or equal to 2.5 times the upper limit of normal. Patients with elevations of serum total bilirubin up to 10 mg/dl and/or ALT or AST up to 10 times the upper limit of normal may be considered for participation if such elevations are thought to be due to liver involvement by malignancy. However, in these latter patients, if the bilirubin (BR) level does not decrease to less than or equal to 2.5 mg/dl, or AST/ALT do not decrease to less than or equal to 2.5 times the upper limit of normal after induction chemotherapy, eligibility for the transplant (research) phase will be at the discretion of the principal investigator (PI). * Patients who are hepatitis B core antibody positive and or have positive hepatitis B surface antigen will require hepatology consultation. The risk/benefit profile of transplant and hepatitis B will be discussed with the patient and eligibility determined by the PI or the LAI. * Patient may have a hepatitis C infection. However, each patient will require a hepatology consultation. The risk/benefit profile of transplant and hepatitis C will be discussed with the patient and eligibility determined by the PI or the LAI. * Palifermin has had embryotoxic and fetotoxic effects in animal studies. For this reason and because the other therapeutic agents used in this trial are known to be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of active study therapy. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Research Phase Inclusion Criteria: Verification of donor eligibility (clearance must be received from the NMDP) * Donors are evaluated by NMDP affiliated donor centers per NMDP Standards. * Donors who are medically suitable, but ineligible by Food and Drug Administration (FDA) guidelines may still donate peripheral blood stem cells (PBSC) with documentation of urgent medical need by the PI. * Patients who receive stem cell products from ineligible donors will be informed of any increase in risk of transfusion-related diseases prior to initiation of conditioning chemotherapy. * Donors who are ineligible or unwilling to donate bone marrow will not be eligible to donate to study recipients. However, in the event that the patient has already begun conditioning chemotherapy and a donor PBSC collection is terminated early for donor-related medical concerns, a bone marrow graft may be infused. Should this occur, the recipient will continue to be managed on this protocol for all transplant-related care and complications. Patient will stay on study, but clinical outcomes will not be eligible for the statistics and end point calculations. * Inadequate stem cell collection from the selected donor is defined as less than or equal to 2 x 10\^6 cluster of differentiation 34 (CD34+) cells/kg. In most cases, donor cell collections are infused fresh. If a fresh collection is found to have an inadequate cell count, the cells will still be infused, but the recipient will be removed from the study and managed clinically for all transplant related care and complications on this protocol. If the patient fails to engraft, the donor may be requested for a second collection or an emergency bone marrow harvest at the discretion of the PI and NMDP Medical Director. In the event of an inadequate collection obtained prior to patient conditioning, the donor may be asked to donate a second time, or another eligible donor may be requested. * Renal and hepatic function continues to meet eligibility criteria, reassessed as follows: * 24-hour creatinine clearance or calculated (using the Cockcroft-Gault formula) creatinine clearance \> 60 mL/min/1.73 m\^2 (induction phase only) * (((140-age)\*mass(kg))/(72\*serum creatinine (mg/dL))) x 1.73 m\^2/patients body surface area (BSA) * If the patient is female, multiply the above by 0.85 * In patients with suspected liver disease, bilirubin must be less than or equal to 2.5 mg/dL, AST and ALT must be less than or equal to 2.5 times institutional upper limit of normal (ULN) * The malignancy must be restaged prior to research phase and must not have progressed during induction chemotherapy (stable disease or better). Persons with acute leukemia, myelodysplastic syndrome (MDS)/refractory anemia with excess blasts (RAEB)-I or II or chronic myeloid leukemia (CML) with previous accelerated or blast phase must have \<5% blasts in the bone marrow. Persons with chronic phase CML may have up to 10% blasts in the bone marrow.

Exclusion criteria

(applies to all phases of this protocol): * Active infection that is not responding to antimicrobial therapy. * Active central nervous system (CNS) involvement by malignancy (patients with known positive cerebrospinal fluid (CSF) cytology or parenchymal lesions visible by computed tomography (CT) or magnetic resonance imaging (MRI). * Previous other malignancies unless they have undergone curative intent therapy for that malignancy and (1) have had no evidence of that disease for 5 years, and/or (2) be deemed at low risk for recurrence (less than or equal to 20% at 5 years). * Human immunodeficiency virus (HIV) positive patients are ineligible as allogeneic stem cell transplant is not yet a proven approach in this patient population, and patients are at increased risk of lethal infections when treated with marrow suppressive therapy. * Pregnant women are excluded from this study because palifermin has been shown to be embryotoxic and fetotoxic in animal studies. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with palifermin, breastfeeding should be discontinued for the duration of active study therapy. These potential risks may also apply to other agents used in this study. * History of psychiatric disorder or any other condition which may compromise compliance with transplant protocol or expose patient to unnecessary risk as determined by principal investigator or lead associate investigator.

Design outcomes

Primary

MeasureTime frameDescription
Phase II: Estimated Percent of Participants Who Experienced Severe Chronic Graft Versus Host Disease (GVHD)60 monthsThe estimated percent of participants who experienced severe chronic graft versus host disease (GVHD) was assessed by the 1994 Consensus Conference Working Criteria. Severe GVHD is defined using the Global Staging per 2014 National Institutes of Health (NIH) Consensus Criteria for chronic GVHD.
Phase I: Maximum Tolerated Dose (MTD) of PaliferminApproximately 30-day post-transplantMTD is defined as the dose level at which no more than 1 (of ≤ 6) participants who experience dose-limiting toxicity (DLT), and the dose below that at which at least 2 (of ≤ 6) participants have a DLT as a result of the drug. A DLT is non-relapse mortality before day 30 post transplantation regardless of attribution to palifermin. and non-hematologic grade 4 (life-threatening) adverse events within 14 days after treatment with palifermin possibly related to drug.
Phase 1: Number of Participants With a Dose-limiting Toxicity (DLT)≤day 30 post-transplantA DLT is non-relapse mortality before day 30 post transplantation regardless of attribution to palifermin. Persons who expire from malignancy related causes are not considered DLTs; and non-hematologic Common Terminology Criteria for Adverse Events (CTCAE) ≥ grade 4 adverse events (AEs), occurring within 14 days after administration of palifermin that are determined by the investigator to be at least possibly related to the study drug. An isolated laboratory value is not considered an AE unless it meets the guidelines. Note: Participants will not be removed from study therapy due to palifermin toxicity as only 1 dose is administered. DLT criteria are established only to determine dose levels for subsequent participants.

Other

MeasureTime frameDescription
Phase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)All adverse events, including clinically significant abnormal findings on laboratory evaluations, regardless of severity, will be followed until return to baseline or stabilization of event, up to 5 years.Here is the number of participants with serious and/or non-serious adverse events assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.

Countries

United States

Participant flow

Participants by arm

ArmCount
Phase I Palifermin Dose Level 1: 180 mcg/kg Intravenous (IV) on Day-7
Induction chemotherapy, then palifermin at escalating doses, then conditioning chemotherapy, then allogeneic stem cell transplant, then immunosuppression.
6
Phase I Palifermin Dose Level 2: 360 mcg/kg Intravenous (IV) on Day-7
Induction chemotherapy, then palifermin at escalating doses, then conditioning chemotherapy, then allogeneic stem cell transplant, then immunosuppression.
3
Phase I Palifermin Dose Level 3: 540 mcg/kg Intravenous (IV) on Day-7
Induction chemotherapy, then palifermin at escalating doses, then conditioning chemotherapy, then allogeneic stem cell transplant, then immunosuppression.
3
Phase I Palifermin Dose Level 4: 720 mcg/kg Intravenous (IV) on Day-7
Induction chemotherapy, then palifermin at escalating doses, then conditioning chemotherapy, then allogeneic stem cell transplant, then immunosuppression.
3
Phase 2 Palifermin: 720 mcg/kg Intravenous (IV) Dose
Induction chemotherapy, then palifermin at the recommended phase 2 dose (RP2D) determined in Phase 1, then conditioning chemotherapy, then allogeneic stem cell transplant, then immunosuppression.
16
Participants Enrolled But Not Treated on Research Phase (Palifermin + Transplant)
Participants were enrolled but not treated on Research Phase (Palifermin + Transplant).
3
Total34

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Research Ph, Ph I Dose Level 180mcg/kgNo longer eligible for research phase000001

Baseline characteristics

CharacteristicPhase I Palifermin Dose Level 2: 360 mcg/kg Intravenous (IV) on Day-7Phase I Palifermin Dose Level 3: 540 mcg/kg Intravenous (IV) on Day-7Phase I Palifermin Dose Level 4: 720 mcg/kg Intravenous (IV) on Day-7Phase 2 Palifermin: 720 mcg/kg Intravenous (IV) DoseParticipants Enrolled But Not Treated on Research Phase (Palifermin + Transplant)Phase I Palifermin Dose Level 1: 180 mcg/kg Intravenous (IV) on Day-7Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Age, Categorical
Between 18 and 65 years
3 Participants3 Participants3 Participants16 Participants2 Participants6 Participants33 Participants
Age, Continuous55.67 years
STANDARD_DEVIATION 8.62
31 years
STANDARD_DEVIATION 10.15
46.33 years
STANDARD_DEVIATION 11.06
35.19 years
STANDARD_DEVIATION 12.5
61 years
STANDARD_DEVIATION 7
49.5 years
STANDARD_DEVIATION 10.01
42.41 years
STANDARD_DEVIATION 14.23
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants2 Participants1 Participants12 Participants0 Participants1 Participants16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants1 Participants2 Participants4 Participants3 Participants5 Participants18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants0 Participants0 Participants0 Participants2 Participants3 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants3 Participants0 Participants0 Participants5 Participants
Race (NIH/OMB)
White
1 Participants2 Participants2 Participants12 Participants3 Participants4 Participants24 Participants
Region of Enrollment
United States
3 participants3 participants3 participants16 participants3 participants6 participants34 participants
Sex: Female, Male
Female
2 Participants0 Participants0 Participants6 Participants1 Participants2 Participants11 Participants
Sex: Female, Male
Male
1 Participants3 Participants3 Participants10 Participants2 Participants4 Participants23 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
2 / 62 / 31 / 31 / 36 / 160 / 3
other
Total, other adverse events
6 / 63 / 33 / 33 / 316 / 160 / 3
serious
Total, serious adverse events
3 / 62 / 32 / 31 / 35 / 160 / 3

Outcome results

Primary

Phase 1: Number of Participants With a Dose-limiting Toxicity (DLT)

A DLT is non-relapse mortality before day 30 post transplantation regardless of attribution to palifermin. Persons who expire from malignancy related causes are not considered DLTs; and non-hematologic Common Terminology Criteria for Adverse Events (CTCAE) ≥ grade 4 adverse events (AEs), occurring within 14 days after administration of palifermin that are determined by the investigator to be at least possibly related to the study drug. An isolated laboratory value is not considered an AE unless it meets the guidelines. Note: Participants will not be removed from study therapy due to palifermin toxicity as only 1 dose is administered. DLT criteria are established only to determine dose levels for subsequent participants.

Time frame: ≤day 30 post-transplant

Population: 15/16 participants were analyzed because 1 participant was a screen failure post induction for research phase.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
2/Phase II Arm - Palifermin at the Recommended Phase 2 DosePhase 1: Number of Participants With a Dose-limiting Toxicity (DLT)1 Participants
Primary

Phase II: Estimated Percent of Participants Who Experienced Severe Chronic Graft Versus Host Disease (GVHD)

The estimated percent of participants who experienced severe chronic graft versus host disease (GVHD) was assessed by the 1994 Consensus Conference Working Criteria. Severe GVHD is defined using the Global Staging per 2014 National Institutes of Health (NIH) Consensus Criteria for chronic GVHD.

Time frame: 60 months

Population: The total number of participants analyzed for the primary outcome measure is 19 (16 enrolled on the phase 2 Arm and data/outcomes on the 3 participants from phase 1 treated at dose level 4).

ArmMeasureValue (NUMBER)
2/Phase II Arm - Palifermin at the Recommended Phase 2 DosePhase II: Estimated Percent of Participants Who Experienced Severe Chronic Graft Versus Host Disease (GVHD)6.0 Estimated percent of participants
Primary

Phase I: Maximum Tolerated Dose (MTD) of Palifermin

MTD is defined as the dose level at which no more than 1 (of ≤ 6) participants who experience dose-limiting toxicity (DLT), and the dose below that at which at least 2 (of ≤ 6) participants have a DLT as a result of the drug. A DLT is non-relapse mortality before day 30 post transplantation regardless of attribution to palifermin. and non-hematologic grade 4 (life-threatening) adverse events within 14 days after treatment with palifermin possibly related to drug.

Time frame: Approximately 30-day post-transplant

Population: All participants = (total # for phase 1).

ArmMeasureValue (NUMBER)
2/Phase II Arm - Palifermin at the Recommended Phase 2 DosePhase I: Maximum Tolerated Dose (MTD) of Palifermin720 mcg/kg
Other Pre-specified

Phase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)

Here is the number of participants with serious and/or non-serious adverse events assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.

Time frame: All adverse events, including clinically significant abnormal findings on laboratory evaluations, regardless of severity, will be followed until return to baseline or stabilization of event, up to 5 years.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
2/Phase II Arm - Palifermin at the Recommended Phase 2 DosePhase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)6 Participants
Phase I Palifermin Dose Level 2: 360 mcg/kg Intravenous (IV) on Day-7Phase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)3 Participants
Phase I Palifermin Dose Level 3: 540 mcg/kg Intravenous (IV) on Day-7Phase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)3 Participants
Phase I Palifermin Dose Level 4: 720 mcg/kg Intravenous (IV) on Day-7Phase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)3 Participants
Phase 2 Palifermin: 720 mcg/kg Intravenous (IV) DosePhase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)16 Participants
Participants Enrolled But Not Treated on Research Phase (Palifermin + Transplant)Phase I and/or Phase 2: Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026