ARMS - Rapidly Generated Multivirus-Specific CTLs for Prophylaxis & Treatment of EBV, CMV, Adenovirus, HHV6 & BK Virus (ARMS)
|ClinicalTrials.gov Identifier: NCT01570283|
Recruitment Status : Completed
First Posted : April 4, 2012
Last Update Posted : August 10, 2018
The subjects eligible for this trial have a type of blood cell cancer, other blood disease or a genetic disease for which they will receive a stem cell transplant. The donor of the stem cells will be either the subject's brother or sister, or another relative, or a closely matched unrelated donor. The Investigators are asking subjects to participate in this study which tests if blood cells from the subject's donor that have been grown in a special way, can prevent or be a effective treatment for early infection by five viruses - Epstein Barr virus (EBV), cytomegalovirus (CMV), adenovirus, BK virus (BKV) and human herpes virus 6 (HHV6).
The Investigators have grown T cells from the subject's stem cell donor in the laboratory in a way that will train them to recognize the viruses and control them when the T cells are given after a transplant. This treatment with specially trained T cells (also called cytotoxic T cells or "CTLs") has had activity against three of these viruses (CMV, EBV and Adenovirus) in previous studies. In this study the Investigators want to see if they increase the number of viruses that can be targeted to include BKV and HHV6 using a simple and fast approach to make the cells.
The Investigators want to see if they can use a kind of white blood cell called T lymphocytes (or T cells) to prevent and treat adenovirus, CMV, EBV, BKV and HHV6 in the early stages of reactivation or infection.
|Condition or disease||Intervention/treatment||Phase|
|Viral Infection||Biological: Multivirus-specific T cells||Phase 1 Phase 2|
To make the CTLs, subject's donors' cells were mixed with small pieces of proteins, called peptides that come from adenovirus, CMV, EBV, BKV and HHV6. These peptides stimulate donor T cells that react against the viruses to grow and train the donor T cells to kill cells that are infected with CMV, EBV, adenovirus, BKV and HHV6. Once sufficient numbers of T cells were made, they were tested to make sure they would target the cells infected with these viruses but not the normal cells. Then the cells were frozen.
When the Investigators think the subject needs them, the subject's donor's CTL cells will be thawed and injected into the intravenous line. To prevent an allergic reaction, prior to receiving the CTLs the subject may be given diphenhydramine (Benadryl) and acetaminophen (Tylenol). After the subject receives the cells, Investigators will monitor the levels of these five viruses in the blood. They will also take blood to see how long the T cells they gave the subject are lasting in the body.
If the CTL infusion has helped the subjects infection or if they have had a treatment, for example with steroid drugs that might have destroyed the T cells the subject was given, then they are allowed to receive up to 2 more doses of the cells.
The first part of this study was a dose escalation study. That means that at the beginning, patients were started on the lowest dose (1 of 3 different levels) of T cells. The next group of patients were started at a higher dose. This process continued until all 3 dose levels were studied. They would now like to enroll more patients at the highest dose level to get more information about how the T cells work.
Subjects will continue to be followed by their transplant doctors after the injection. The subject will either be seen in the clinic or they will be contacted by a research nurse to follow up for this study every week for 6 weeks then at 8 week and 3, 6 and 12 months. The subject may have other visits for their standard care. Subjects will also have regular blood tests done to follow their counts and the viral infection. To learn more about the way the T cells are working in the body, up to an extra 30-40 ml (6-8 teaspoons) of blood will be taken before the infusion and then at 1, 2, 4, 5, 6 and 8 weeks and 3 months. Blood should come from the central intravenous line, and should not require extra needle sticks.
If subjects experience a positive response or are taking medicines (such as steroids) that may affect how long T cells stay in the body, they may be able to receive up to two additional doses of the T cells at the same initial dose level from 28 days after their initial dose. After each T-cell infusion, they will be monitored as described above.
Study Duration: Subjects will be on study for approximately one year. If they receive additional doses of the T cells as described above, they will be followed until 1 year after their last dose of T-cells.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||21 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||ARMS - Administration Of Rapidly Generated Multivirus-Specific Cytotoxic T-Lymphocytes For The Prophylaxis And Treatment Of EBV, CMV, Adenovirus, HHV6, And BK Virus Infections Post Allogeneic Stem Cell Transplant|
|Study Start Date :||September 2012|
|Actual Primary Completion Date :||August 2016|
|Actual Study Completion Date :||September 2017|
Experimental: Multivirus-specific T cells
Multivirus-specific T cells given intravenously
Biological: Multivirus-specific T cells
The feasibility and safety of 3 different dose levels will be evaluated and will determine the maximum tolerated dose (MTD) level.
Dose Level One: 5x10^6 mCTLs/m2
Dose Level Two: 1x10^7 mCTLs/m2
Dose Level Three: 2x10^7 mCTLs/m2
There may be an option of administering 2 additional doses (at the same level the patient was receiving), 28 days after the first dose, in subjects that have a partial response after one dose or who receive other therapy that may affect the persistence or function of the infused CTL.
- Safety as evaluated by number of participants with a DLT [ Time Frame: 42 days ]DLT is defined as acute GvHD grades III-IV within 42 days of the last dose of CTLs, # of patients with Grade 3-5 infusion-related adverse events within 30 days of the last dose of CTLs, and # of patients with Grade 4-5 non-hematological adverse events within 30 days of the last dose of CTLs
- Phase II - Antiviral Response rate [ Time Frame: 42 days ]Percentage of patients who have a response in anti-viral activitiy that is defined as a viral load reductino to the normal level for at least one of the five virus types
- Assessment of viral load to the CTL infusion [ Time Frame: 3 months ]Percentage change of viral load by PCR from baseline
- Reconstitution of antiviral immunity [ Time Frame: 3 months ]Reconstitution of antiviral immunity is defined as virus-reactive T cells as measured by Elispot
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01570283
|United States, Texas|
|Houston Methodist Hospital|
|Houston, Texas, United States, 77030|
|Texas Children's Hospital|
|Houston, Texas, United States, 77030|
|Principal Investigator:||Helen Heslop, MD||Baylor College of Medicine|