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Single-arm safety/efficacy trial of TXA127 (Angiotensin 1-7) in subjects undergoing double cord blood transplantation for the treatment of hematologic malignancies. Treatment dose is 300 mcg/kg/day TXA127.

TXA127

Mary J Laughlin, MD

The purpose of this study is to evaluate the efficacy of TXA127 to reduce the incidence (Grade II-IV) of acute Graft-vs.-Host Disease (aGVHD) in adult subjects undergoing double umbilical cord blood transplantation (UCBT). The study will also evaluate the effects of TXA127 on incidence, severity and duration of mucositis; neutrophil engraftment and platelet recovery; platelet transfusion requirements; immune reconstitution; and duration of corticosteroid use. TXA127 has shown to be well tolerated by patients and appears to induce rapid production of neutrophils and platelets in the bloodstream, as well as increase the immune system components. TXA127 has also been shown reduce the severity of chemotherapy-induced mucositis.

Cord blood (CB) as a hematopoietic stem cell source has multiple advantages. Cord blood is normally discarded at birth and can easily be collected and stored. Availability of numerous CB banks has resulted in genetically diverse CB units including those from non-Caucasians. Once a suitable CB unit is located, confirmatory typing can be quickly performed and a donor unit can be shipped to the transplant center. Furthermore, because a CB graft results in a lower incidence of graft-versus-host disease (GVHD), one or two antigen-mismatches may be acceptable for transplantation. Despite these advantages, CB has a significant drawback: the number of hematopoietic stem cells obtained from a unit of CB is significantly lower than from a bone marrow (BM) or peripheral blood stem cell (PBSC) harvest. The number of stem cells can be increased by transplanting two cord blood units, however the incidence of GVHD increases in patients receiving two CB units compared to patients who receive one unit. Another issue in this population is mucositis, as a result of myeloablative conditioning given prior to the transplant, which can be debilitating to patients. TXA127 is pharmaceutically-formulated angiotensin 1-7, a non-hypertensive derivative of angiotensin II (which contains the 8th amino acid conferring receptor binding to blood pressure receptors). TXA127 has multilineage effects on hematopoietic progenitors in vitro and in vivo. The hematopoietic properties demonstrated in preclinical and clinical studies support the investigation of TXA127 to reduce the incidence of acute GVHD (aGVHD) and mucositis in this patient population.

Efficacy Study of a TXA127 to Reduce Acute Graft-vs-Host Disease in Subjects Undergoing Double Umbilical Cord Blood Transplantation

Phase II Evaluation of the Efficacy of TXA127 (Angiotensin 1-7) to Reduce Acute Graft-vs-Host Disease in Adults Undergoing Double Umbilical Cord Blood Transplantation

Incidence of Grade II-IV acute graft-vs-host disease (aGVHD) will be assessed using clinical staging and grading criteria as defined in Przepiorka et al. (1995). Duration and severity of aGVHD will also be evaluated.

Incidence of mucositis is defined by the occurrence of least one adverse event with MedDRA preferred term that includes "mucositis" or "stomatitis". The severity grade will be determined by NCI-CTCAE.

Time to initial neutrophil engraftment is defined as the number of days from infusion of UCB units to the first of 3 consecutive days of an ANC ≥0.5 × 10\^9/L. Time to initial platelet recovery is defined as the number of days from infusion of UCB units to the first of 3 consecutive platelet count measurements tested on different days with a count ≥20 × 10\^9/L with no platelet transfusion in the prior 7 days.

Platelet transfusion requirements are based on cumulative units of platelets transfused and cumulative days of platelet transfusions.

Immune reconstitution will be assessed via the measurement of peripheral blood concentrations of CD3+, CD4+, CD8+, CD19+, and CD56+ cells (performed at Study Days 62 and 100).

Duration of corticosteroid use for GVHD will be summarized by frequency (i.e., number of days).

Tarix Pharmaceuticals

Symptoms and General Pathology

Syndrome

Leukemia

Leukemia, Myeloid

Leukemia, Myeloid, Acute

Preleukemia

Myelodysplastic Syndromes

Precursor Cell Lymphoblastic Leukemia-Lymphoma

Leukemia, Lymphoid

Lymphoma

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Lymphatic Diseases

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Fludarabine phosphate

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Prednisolone phosphate

Diphenhydramine

Promethazine

Antilymphocyte Serum

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Antineoplastic Agents, Alkylating

Alkylating Agents

The UCB unit must supply a minimum of 1.0 x107/kg pre-cryopreserved nucleated cell dose. The unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1

For the standard arm, UCB units will be selected using the Minnesota strategy and the strategy followed in a recent CTN study.17;19Each unit must supply a minimum of 1.5 x107/kg pre-cryopreserved nucleated cell dose. Subjects must have two partially HLA-matched UCB units. Each unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1

If a subject is randomized to the haplo-cord transplant group, their family member will undergo a stem cell collection. The stem cells from the haplo-identical donor will be purified by a procedure called CD34 selection before they are given to the subject. A special device called the CliniMACS® CD34 Reagent System, which is not FDA approved, will be used for this purpose. The manufacturer of the device, Miltenyi Biotec, is providing the researchers access to the device for use in this research study. Because the stem cells from the haplo-identical donor are treated using the CliniMACS CD34 selection device, they cells are considered investigational.

CliniMACS® CD34 Reagent System

Fludarabine: 30 mg/m2 /day intravenously x 5 days total dose 150 mg/m2. Fludarabine will be dosed according to actual body weight

Melphalan: 70mg/m2/day intravenously x 2 days. Melphalan will be dosed according to actual body weight. Cryotherapy with ice chips will be administered to prevent mucositis.

Rabbit ATG (rATG): 1.5 mg/kg/day intravenously x 4 days, total 6 mg/kg. ATG will be dosed according to actual body weight. The first dose will be infused over at least six hours, and subsequent doses over at least 4 hours. Pre-medications include acetaminophen 650 mg by mouth, diphenhydramine 25-50 mg by mouth or intravenously, and methylprednisolone 2 mg/kg (1 mg/ kg at the initiation and 1 mg/kg half-way through anti-thymocyte globulin administration).

Rabbit ATG

All subjects will receive an UCB dose of \> 3 x107/kg nucleated blood cells. It is expected that this will require co-infusion of two UCB in the large majority of cases. If two UCB are required, they will be at least 4/5 matched to the recipient.

Double Umbilical Cord Blood Transplantation

If randomized to the haplo-cord group, a family member will undergo a stem cell collection. In both arms, subjects will receive a "conditioning regimen" prior to transplantation. The conditioning regimen utilized in this study incorporates fludarabine-Melphalan and antithymocyte globulin (ATG). This regimen has the advantage of being nearly identical to the regimen utilized for our haplo-cord regimen is based on the experience of the Dana-Farber/Mass-General regimen.

Haplo-Identical Cord Transplantation

Koen van Besien, MD, PhD

The purpose of this study is compare the efficacy of haplo-cord transplant (investigational arm) with that of a more commonly used procedure in which only the cells contained in one or two umbilical cords are infused (standard arm).

We hypothesize that reduced intensity conditioning and haplo-cord transplant results in fast engraftment of neutrophils and platelets, low incidences of acute and chronic graft versus host disease, low frequency of delayed opportunistic infections, reduced transfusion requirements, shortened length of hospital stay and promising long term outcomes. We also hypothesize that umbilical cord blood selection can prioritize matching and better matched donors can be identified rapidly for most subjects.

This is a clinical trial for subjects with hematologic malignancies ( acute myelogenous leukemia, acute lymphocytic leukemia, Hodgkin's or Non-Hodgkin's lymphoma, or myelodysplastic syndrome) who are in need of a donor stem cell transplant, and for whom an umbilical cord blood transplant is thought to be the best option. For allogeneic transplant donors, we typically try to use related family members, such as brothers or sisters, or volunteer donors who are 'HLA matched', i.e. share similar proteins on their cells. This study is for subjects for whom such a matched sibling donor or a matched unrelated donor is not available.

This study tests a new method of bone marrow transplantation called combined haplo-identical cord (haplo-cord) transplantation. In this procedure, cells from a related donor who shares half of the HLA proteins ( haplo-identical)are collected from the blood, as well as cells from an umbilical cord, and then both are transplanted. It is hoped that by using cells from a haplo-identical relative, subjects will have a faster recovery and require fewer transfusions. Over time the haplo-identical cells from the relative are replaced by the cells from the cord blood. The combined transplantation of haplo-identical stem cells and cord blood has previously been used in approximately 60 subjects with very encouraging results.

The purpose of this study is to compare the efficacy of haplo-cord transplant ( "investigational" arm) with the more commonly used procedure in which only the cells contained in one or two umbilical cords are infused ("standard" arm). Subjects will be randomly assigned into either the haplo-cord group or the umbilical cord group.

If randomized to the haplo-cord group, a family member will undergo a stem cell collection. In both arms, subjects will receive a "conditioning regimen" prior to transplantation. The conditioning regimen consists of chemotherapy, which is meant to destroy the cancer cells and suppress the immune system to allow the transplanted cells to grow. Subjects will remain in the hospital until the stem cells are fully recovered, which is usually 4 to 6 weeks after the transplant. Subjects will have bone marrow aspiration and biopsy at 3 weeks, 4 weeks, 2 months, 6 months and 1 year after the transplant and then yearly thereafter. Participation in the study will continue for up to 5 years after transplantation.

Randomized HaploCord Blood Transplantation vs. Double Umbilical Cord Blood Transplantation for Hematologic Malignancies

A Randomized Study of Combined Haplo-identical Umbilical Cord Blood Transplantation vs. Double Umbilical Cord Blood Transplantation in Patients With Hematologic Malignancies

No patients completed this study and are therefore inevaluable. Subject data not evaluable for the outcome measure time frame. Subject data only evaluable up to month 3.

No patients completed this study and are therefore inevaluable

Weill Medical College of Cornell University

The UCB unit must supply a minimum of 1.0 x107/kg pre-cryopreserved nucleated cell dose. The unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1.

Haplo-Cord SCT

For the standard arm, UCB units will be selected using the Minnesota strategy and the strategy followed in a recent CTN study.17;19Each unit must supply a minimum of 1.5 x107/kg pre-cryopreserved nucleated cell dose. Subjects must have two partially HLA-matched UCB units. Each unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1.

UCB SCT

Total

Age, Categorical

Sex: Female, Male

United States

Region of Enrollment

Koen van Besien, MD

Rate of Neutrophil Engraftment After Combined Haplo-identical Cord With That of Umbilical Cord Blood Transplantation.

The UCB unit must supply a minimum of 1.0 x107/kg pre-cryopreserved nucleated cell dose. The unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1

CliniMACS® CD34 Reagent System: If a subject is randomized to the haplo-cord transplant group, their family member will undergo a stem cell collection. The stem cells from the haplo-identical donor will be purified by a procedure called CD34 selection before they are given to the subject. A special device called the CliniMACS® CD34 Reagent System, which is not FDA approved, will be used for this purpose. The manufacturer of the device, Miltenyi Biotec, is providing the researchers access to the device for

For the standard arm, UCB units will be selected using the Minnesota strategy and the strategy followed in a recent CTN study.17;19Each unit must supply a minimum of 1.5 x107/kg pre-cryopreserved nucleated cell dose. Subjects must have two partially HLA-matched UCB units. Each unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1

Fludarabine: Fludarabine: 30 mg/m2 /day intravenously x 5 days total dose 150 mg/m2. Fludarabine will be dosed according to actual body weight

Melphalan: Melphalan: 70mg/m2/day intravenously x 2 days. Melphalan will be dosed according to actual body weight. Cryotherapy with ice chips will be administered to prevent mucosit

Platelet Recovery After Transplant Regimens

Transfusion Requirements After Haplo-identical Umbilical Cord Blood Transplant Versus Double Umbilical Cord Blood Transplant

Transplant-related Mortality (TRM), Relapse Rate, Survival and Progression Free Survival

Incidence of Acute and Chronic GVHD

Severity of Opportunistic Infections

The UCB unit must supply a minimum of 1.0 x107/kg pre-cryopreserved nucleated cell dose. The unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1

CliniMACS® CD34 Reagent System: If a subject is randomized to the haplo-cord transplant group, their family member will undergo a stem cell collection. The stem cells from the haplo-identical donor will be purified by a procedure called CD34 selection before they are given to the subject. A special device called the CliniMACS® CD34 Reagent System, which is not FDA approved, will be used for this purpose.

For the standard arm, UCB units will be selected using the Minnesota strategy and the strategy followed in a recent CTN study.17;19Each unit must supply a minimum of 1.5 x107/kg pre-cryopreserved nucleated cell dose. Subjects must have two partially HLA-matched UCB units. Each unit must match at a minimum of 4 of 6 at HLA-A, -B, -DRB1 loci with the recipient. This may include 0-2 antigen mismatches at each A or B (at the antigen level) or DRB1 (at the allele level) loci. All typing will be done using molecular typing. Though molecular level typing will be available, a match is defined at intermediate resolution for HLA-A and -B and at high resolution for -DRB1 Fludarabine: Fludarabine: 30 mg/m2 /day intravenously x 5 days total dose 150 mg/m2. Fludarabine will be dosed according to actual body weight Melphalan: Melphalan: 70mg/m2/day intravenously x 2 days. Melphalan will be dosed according to actual body weight.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
Efficacy Study of a TXA127 to Reduce Acute Graft-vs-Host Disease in Subjects Undergoing Double Umbilical Cord Blood Transplantation	NCT01882374	Hematologic Mal...	TXA127	18 Years -	Tarix Pharmaceuticals
Randomized HaploCord Blood Transplantation vs. Double Umbilical Cord Blood Transplantation for Hematologic Malignancies	NCT01745913	Acute Myelogeno... Myelodysplastic... Acute Lymphocyt... Hodgkin's Lymph... Non-Hodgkin's L...	CliniMACS® CD34... Fludarabine Melphalan Rabbit ATG Double Umbilica... Haplo-Identical...	18 Years -	Weill Medical College of Cornell University
Efficacy Study of a TXA127 to Reduce Acute Graft-vs-Host Disease in Subjects Undergoing Double Umbilical Cord Blood Transplantation	NCT01882374	Hematologic Mal...	TXA127	18 Years -	Tarix Pharmaceuticals
Randomized HaploCord Blood Transplantation vs. Double Umbilical Cord Blood Transplantation for Hematologic Malignancies	NCT01745913	Acute Myelogeno... Myelodysplastic... Acute Lymphocyt... Hodgkin's Lymph... Non-Hodgkin's L...	CliniMACS® CD34... Fludarabine Melphalan Rabbit ATG Double Umbilica... Haplo-Identical...	18 Years -	Weill Medical College of Cornell University

Spots Global Cancer Trial Database for double umbilical cord blood transplantation