Raltegravir for HAM/TSP

Summary

Background: \- Human T-cell lymphotropic virus type 1 associated myelopathy/tropical spastic paraparesis (HAM/TSP) is an infection of the spinal cord. The infection is caused by a virus that has been known to cause cancers like leukemia and lymphoma. It causes a weakening of the legs. Researchers want to see if raltegravir, a drug for treating human immunodeficiency virus (HIV), can be used to treat HAM/TSP. They will see if the drug can reduce the amount of virus in the blood of people with HAM/TSP. Objectives: \- To see if raltegravir can reduce the viral load of people with HAM/TSP. Eligibility: \- Individuals at least 18 years of age who have HAM/TSP. Design: * Participants will be screened with a physical exam and medical history. Blood samples will be collected. Imaging studies will be performed. A lumbar puncture will also be taken. * Participants will take the study drug twice a day for 6 months. They will note each dose in a study diary, as well as any side effects. * At the 6-month visit, participants will stop taking the study drug. They will have a physical exam and blood samples, as well as other tests. * Participants will have two further exams 9 months and 15 months after starting the study drug. They will have a physical exam and blood samples, as well as other tests.

Timeline

Start

2013-09-05

Primary completion

2018-09-25

Completion

2018-09-25

Publications

• Background Araujo AQ, Andrade-Filho AS, Castro-Costa CM, Menna-Barreto M, Almeida SM. HTLV-I-associated myelopathy/tropical spastic paraparesis in Brazil: a nationwide survey. HAM/TSP Brazilian Study Group. J Acquir Immune Defic Syndr Hum Retrovirol. 1998 Dec 15;19(5):536-41. doi: 10.1097/00042560-199812150-00014.
• Background Asquith B, Hanon E, Taylor GP, Bangham CR. Is human T-cell lymphotropic virus type I really silent? Philos Trans R Soc Lond B Biol Sci. 2000 Aug 29;355(1400):1013-9. doi: 10.1098/rstb.2000.0638.
• Background Aye MM, Matsuoka E, Moritoyo T, Umehara F, Suehara M, Hokezu Y, Yamanaka H, Isashiki Y, Osame M, Izumo S. Histopathological analysis of four autopsy cases of HTLV-I-associated myelopathy/tropical spastic paraparesis: inflammatory changes occur simultaneously in the entire central nervous system. Acta Neuropathol. 2000 Sep;100(3):245-52. doi: 10.1007/s004019900170.
• Enose-Akahata Y, Billioux BJ, Azodi S, Dwyer J, Vellucci A, Ngouth N, Nozuma S, Massoud R, Cortese I, Ohayon J, Jacobson S. Clinical trial of raltegravir, an integrase inhibitor, in HAM/TSP. Ann Clin Transl Neurol. 2021 Oct;8(10):1970-1985. doi: 10.1002/acn3.51437. Epub 2021 Sep 25.

Drugs

Indications