HAM
Conditions
Brief summary
HTLV-1 Associated Myelopathy is a chronic disease of the spinal cord, caused by a virus called human T lymphotropic virus type 1(HTLV-1). Natural Killer cells provide rapid responses to viral-infected cells, acting at around 3 days after infection, and respond to tumor formation. In this trial, the investigators aim to study the therapeutic safety and the effect on HTLV-1 virus. This in turn will improve the knowledge and understanding of the disease and should lead to better therapy.
Detailed description
HAM is a chronic disease of the spinal cord, caused by a virus called HTLV-I. Natural Killer cells provide rapid responses to viral-infected cells, acting at around 3 days after infection, and respond to tumor formation. In this trial, the investigators aim to study the therapeutic safety and the effect on HTLV-1 virus. This in turn will improve the knowledge and understanding of the disease and should lead to better therapy. In a single-center, one year open-label trial, 5 HAM patients will be treated with single intravenous injection of NK cells (0.9\ 1\*10\^9). Then, the the clinical effect was evaluated by dynamic analysis of Osame's Motor Disability Score and other related physiological indices, such as HTLV-1 antibody titer in blood and cerebrospinal fluid.
Interventions
single intravenous injection of NK cells (0.9\ 1\*10\^9)
single intrathecal injection of amniotic epithelial cells
Sponsors
Study design
Eligibility
Inclusion criteria
* Clinical diagnosis of HTLV-1 associated myelopathy
Exclusion criteria
* HIV infection * Hepatitis B & C viral infections * Pregnant
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| change of Osame's Motor Disability Score | 1 year | The score were defined as follows: 0, no disability; 1, walking slow; 2, a little trouble when walking; 3, unable to run; 4, needs guardrail while going up the stairs; 5, needs one hand support while walking; 6, needs two hands support while walking (\> 10 m); and 7, needs two hands support while walking (\< 10 m); 8, needs two hands support while walking (\< 5 m); 9, unable to walk but can crawl; 10, unable to crawl but can move; 11, unable to move but can roll over on the bed; 12 unable to roll over; 13, unable to flex toes |
Secondary
| Measure | Time frame |
|---|---|
| HTLV-1 antibody titer in serum | 1 year |
| HTLV-1 antibody titer in cerebrospinal fluid | 1 year |
| HTLV-1 proviral load in blood | 1 year |
Countries
China