Clinical Trials Logo

Clinical Trial Summary

This is a pilot study to evaluate the efficacy of hyperbaric oxygen therapy (HBO2) for mobilizing hematopoietic progenitor cells from bone marrow to blood. These cells are needed for patients to undergo bone marrow transplantation and some patients fail to respond to current best chemotherapy. HBO2 has been shown to trigger stem cell mobilization in other patient populations and we plan to investigate whether this intervention can act in concert with chemotherapeutic agents to allow poor mobilizer patients to achieve successful bone marrow transplantation. Twenty patients will be identified by participating hematologists who have failed to respond adequately to chemotherapy. When it is deemed appropriate to attempt an additional stem cell mobilization protocol, these patients will be administered chemotherapy as determined by their primary treating hematologist and additionally receive daily HBO2 (2.5 atmospheres absolute [ATA] for 90 minutes) for 3-8 days. At intervals, blood samples will be obtained as is the normal transplantation protocol practice to assess whether adequate stem cells are present in blood for the patient to proceed with transplantation. The project is anticipated to take one year to complete.


Clinical Trial Description

Study subjects will be patients who have failed to achieve an adequate mobilization of hematopoietic progenitor cells (so-called stem cells) into their blood stream to safely proceed with hematopoietic stem cell transplantation as a component of treatment for a hematological malignancy. There are several possible chemo-mobilization procedures that a primary clinician may prescribe and when blood cell counts at the end of these procedures document an inadequate number for transplantation, there is no accepted clinical course of action other than to repeat the procedures and sometimes add another drug, such as plerixafor. This investigation is based on a single center abstract presented at a hematological meeting (the 2012 ASCO University Annual Meeting) where 7 of 9 patients previously identified as poor mobilizers achieved sufficient mobilization with addition of hyperbaric oxygen therapy to standard care (1). This project is to recapitulate the study in a somewhat larger patient population (20 subjects).

Once an individual has been identified as a poor mobilizer, meaning they failed with standard therapy to mobilize sufficient stem cells to proceed with bone marrow transplantation, they will be approached by one of the investigators, informed of the study and asked to sign informed consent. After a period of time identified as a 'rest period' (typically 2-4 weeks, exact duration is a decision to be made by the primary clinician overseeing the patient's care) they will begin treatment in another attempt to mobilize an adequate number of hematopoietic progenitor cells (defined as 2 x 10^6 cells/kg body weight). A blood sample will be obtained to determine the baseline number of stem cells (an aspect of normal clinical care) and also an extra 4 ml tube of blood will be obtained for additional studies to be done in the PI's lab (these are added evaluations of hypoxia inducible factors (HIF) within circulating stem cells that may influence function but are not currently recognized as having clinical relevance).

A component of normal care at this point is daily injections with a drug called Neupogen. In order to accommodate the needed time for normal clinical procedures with the anticipated time-course for hyperbaric oxygen therapy-induced stem cell mobilization, the study protocol will begin on Thursday with Neupogen injection plus a 90 minute exposure to hyperbaric oxygen at a pressure of 2.4 atmospheres absolute (the normal protocol followed by the Hyperbaric Oxygen [HBO2] Therapy Service for daily treatments of elective patients). Neupogen plus HBO2 will be repeated again on Friday, and on Saturday and Sunday Neupogen injections again administered.

On Monday Neupogen plus HBO2 will be repeated and on Tuesday morning a blood sample will be obtained. This is for counting stem cells to asses if an adequate number is mobilized (hence an aspect of normal clinical care) and also an extra 4 ml tube of blood will be obtained for the additional studies of HIF in stem cells to be done in the PI's lab. If the cell count exceeds 20/ml blood the subject will undergo apheresis to harvest stem cells on that day. If the cell count is less than 20/ml, the subject will again receive a Neupogen injection and HBO2 and an additional drug that is part of normal care called plerixafor. On Wednesday morning a blood sample will again be obtained to asses if an adequate stem cell number is mobilized (hence an aspect of normal clinical care) and also an extra 4 ml tube of blood will be obtained for additional studies to be done in the PI's lab. If the cell count exceeds 20/ml blood the subject will undergo apheresis to harvest stem cells on that day. If the cell count is still less than 20/ml blood, the subject will again receive a Neupogen injection and HBO2 and an additional dose of plerixafor. It is anticipated that by Thursday morning, when another blood cell count will be done, the study subject will be able to proceed with harvesting their stem cells by the apheresis procedure.

Doses and agents used for chemotherapy will be determined by a patient's primary treating hematologist according to standard treatment guidelines (Neupogen and plerixafor). The experimental intervention will be inclusion of daily HBO2 (2.4 ATA for 90 minutes) administered for 3-5 days. Assessment of blood progenitor cell mobilization will follow standard clinical evaluations and protocols. No additional interventions will be performed. The only addition to standard clinical analysis will be obtaining an extra 4 ml tube of blood at each phlebotomy session for studies to be performed in the PI's lab including analysis of progenitor cell sub-types, content of hypoxia inducible factors and activity of nitric oxide synthase-3 in platelets following published methods (3). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02682953
Study type Interventional
Source University of Maryland, Baltimore
Contact
Status Withdrawn
Phase Phase 2
Start date October 2015
Completion date August 2017

See also
  Status Clinical Trial Phase
Recruiting NCT05027594 - Ph I Study in Adult Patients With Relapsed or Refractory Multiple Myeloma Phase 1
Completed NCT02412878 - Once-weekly Versus Twice-weekly Carfilzomib in Combination With Dexamethasone in Adults With Relapsed and Refractory Multiple Myeloma Phase 3
Completed NCT01947140 - Pralatrexate + Romidepsin in Relapsed/Refractory Lymphoid Malignancies Phase 1/Phase 2
Recruiting NCT05971056 - Providing Cancer Care Closer to Home for Patients With Multiple Myeloma N/A
Recruiting NCT05243797 - Phase 3 Study of Teclistamab in Combination With Lenalidomide and Teclistamab Alone Versus Lenalidomide Alone in Participants With Newly Diagnosed Multiple Myeloma as Maintenance Therapy Following Autologous Stem Cell Transplantation Phase 3
Active, not recruiting NCT04555551 - MCARH109 Chimeric Antigen Receptor (CAR) Modified T Cells for the Treatment of Multiple Myeloma Phase 1
Recruiting NCT05618041 - The Safety and Efficay Investigation of CAR-T Cell Therapy for Patients With Hematological Malignancies N/A
Active, not recruiting NCT03844048 - An Extension Study of Venetoclax for Subjects Who Have Completed a Prior Venetoclax Clinical Trial Phase 3
Recruiting NCT03412877 - Administration of Autologous T-Cells Genetically Engineered to Express T-Cell Receptors Reactive Against Neoantigens in People With Metastatic Cancer Phase 2
Completed NCT02916979 - Myeloid-Derived Suppressor Cells and Checkpoint Immune Regulators' Expression in Allogeneic SCT Using FluBuATG Phase 1
Recruiting NCT03570983 - A Trial Comparing Single Agent Melphalan to Carmustine, Etoposide, Cytarabine, and Melphalan (BEAM) as a Preparative Regimen for Patients With Multiple Myeloma Undergoing High Dose Therapy Followed by Autologous Stem Cell Reinfusion Phase 2
Terminated NCT03399448 - NY-ESO-1-redirected CRISPR (TCRendo and PD1) Edited T Cells (NYCE T Cells) Phase 1
Completed NCT03665155 - First-in- Human Imaging of Multiple Myeloma Using 89Zr-DFO-daratumumab, a CD38-targeting Monoclonal Antibody Phase 1/Phase 2
Completed NCT02812706 - Isatuximab Single Agent Study in Japanese Relapsed AND Refractory Multiple Myeloma Patients Phase 1/Phase 2
Active, not recruiting NCT05024045 - Study of Oral LOXO-338 in Patients With Advanced Blood Cancers Phase 1
Active, not recruiting NCT03792763 - Denosumab for High Risk SMM and SLiM CRAB Positive, Early Myeloma Patients Phase 2
Active, not recruiting NCT03989414 - A Study to Determine the Recommended Dose and Regimen and to Evaluate the Safety and Preliminary Efficacy of CC-92480 in Combination With Standard Treatments in Participants With Relapsed or Refractory Multiple Myeloma (RRMM) and Newly Diagnosed Multiple Myeloma (NDMM) Phase 1/Phase 2
Withdrawn NCT03608501 - A Study of Ixazomib, Thalidomide and Dexamethasone in Newly Diagnosed and Treatment-naive Multiple Myeloma (MM) Participants Non-eligible for Autologous Stem-cell Transplantation Phase 2
Recruiting NCT04537442 - Clinical Study to Evaluate the Safety and Efficacy of IM21 CAR-T Cells in the Treatment of Elderly Patients With Relapsed or Refractory Multiple Myeloma Phase 1
Completed NCT02546167 - CART-BCMA Cells for Multiple Myeloma Phase 1