Clinical Trial to Investigate the Safety, Tolerability, and Immunogenicity of the Novel Antituberculous Vaccine RUTI® Following One Month of Isoniazid Treatment in Subjects With Latent Tuberculosis Infection

Summary

The aim of the trial is to assess the safety, tolerability and immunogenicity of two doses of RUTI® vaccine administered four weeks apart after one month pre-treatment with INH. The trial will be double-blinded, randomized and placebo-controlled with 96 subjects (48 HIV- and 48 HIV+ subjects). Three different RUTI® doses and placebo will be tested, randomizing assigned both in HIV+ and HIV- subjects. Each subject will be randomized to receive one of the four treatments (placebo, 5, 25, 50 μg), after completion of one month INH pre-treatment (one tablet of 300mg/day, vp.o.). Each subject will receive two administrations of the same treatment, 28 days apart. Subjects will be monitored until one month after the second inoculation with RUTI®.

Timeline

Start

2010-06

Primary completion

2011-05

Completion

2011-05

Publications

• Background Gil O, Diaz I, Vilaplana C, Tapia G, Diaz J, Fort M, Caceres N, Pinto S, Cayla J, Corner L, Domingo M, Cardona PJ. Granuloma encapsulation is a key factor for containing tuberculosis infection in minipigs. PLoS One. 2010 Apr 6;5(4):e10030. doi: 10.1371/journal.pone.0010030.
• Background Cardona PJ. Revisiting the natural history of tuberculosis. The inclusion of constant reinfection, host tolerance, and damage-response frameworks leads to a better understanding of latent infection and its evolution towards active disease. Arch Immunol Ther Exp (Warsz). 2010 Feb;58(1):7-14. doi: 10.1007/s00005-009-0062-5. Epub 2010 Jan 5.
• Background Vilaplana C, Montane E, Pinto S, Barriocanal AM, Domenech G, Torres F, Cardona PJ, Costa J. Double-blind, randomized, placebo-controlled Phase I Clinical Trial of the therapeutical antituberculous vaccine RUTI. Vaccine. 2010 Jan 22;28(4):1106-16. doi: 10.1016/j.vaccine.2009.09.134. Epub 2009 Oct 22.
• Background Domingo M, Gil O, Serrano E, Guirado E, Nofrarias M, Grassa M, Caceres N, Perez B, Vilaplana C, Cardona PJ. Effectiveness and safety of a treatment regimen based on isoniazid plus vaccination with Mycobacterium tuberculosis cells' fragments: field-study with naturally Mycobacterium caprae-infected goats. Scand J Immunol. 2009 Jun;69(6):500-7. doi: 10.1111/j.1365-3083.2009.02251.x.
• Background Cardona PJ. A dynamic reinfection hypothesis of latent tuberculosis infection. Infection. 2009 Apr;37(2):80-6. doi: 10.1007/s15010-008-8087-y. Epub 2009 Mar 23.
• Background Gil O, Vilaplana C, Guirado E, Diaz J, Caceres N, Singh M, Cardona PJ. Enhanced gamma interferon responses of mouse spleen cells following immunotherapy for tuberculosis relapse. Clin Vaccine Immunol. 2008 Nov;15(11):1742-4. doi: 10.1128/CVI.00255-08. Epub 2008 Sep 30.
• Background Guirado E, Gil O, Caceres N, Singh M, Vilaplana C, Cardona PJ. Induction of a specific strong polyantigenic cellular immune response after short-term chemotherapy controls bacillary reactivation in murine and guinea pig experimental models of tuberculosis. Clin Vaccine Immunol. 2008 Aug;15(8):1229-37. doi: 10.1128/CVI.00094-08. Epub 2008 Jun 4.
• Background Vilaplana C, Ruiz-Manzano J, Gil O, Cuchillo F, Montane E, Singh M, Spallek R, Ausina V, Cardona PJ. The tuberculin skin test increases the responses measured by T cell interferon-gamma release assays. Scand J Immunol. 2008 Jun;67(6):610-7. doi: 10.1111/j.1365-3083.2008.02103.x. Epub 2008 Apr 4.
• Background Cardona PJ. New insights on the nature of latent tuberculosis infection and its treatment. Inflamm Allergy Drug Targets. 2007 Mar;6(1):27-39. doi: 10.2174/187152807780077282.
• Background Guirado E, Amat I, Gil O, Diaz J, Arcos V, Caceres N, Ausina V, Cardona PJ. Passive serum therapy with polyclonal antibodies against Mycobacterium tuberculosis protects against post-chemotherapy relapse of tuberculosis infection in SCID mice. Microbes Infect. 2006 Apr;8(5):1252-9. doi: 10.1016/j.micinf.2005.12.004. Epub 2006 Jan 27.
• Background Cardona PJ. RUTI: a new chance to shorten the treatment of latent tuberculosis infection. Tuberculosis (Edinb). 2006 May-Jul;86(3-4):273-89. doi: 10.1016/j.tube.2006.01.024. Epub 2006 Mar 20.
• Background Cardona PJ, Amat I, Gordillo S, Arcos V, Guirado E, Diaz J, Vilaplana C, Tapia G, Ausina V. Immunotherapy with fragmented Mycobacterium tuberculosis cells increases the effectiveness of chemotherapy against a chronical infection in a murine model of tuberculosis. Vaccine. 2005 Feb 3;23(11):1393-8. doi: 10.1016/j.vaccine.2004.09.008.
• Nell AS, D'lom E, Bouic P, Sabate M, Bosser R, Picas J, Amat M, Churchyard G, Cardona PJ. Safety, tolerability, and immunogenicity of the novel antituberculous vaccine RUTI: randomized, placebo-controlled phase II clinical trial in patients with latent tuberculosis infection. PLoS One. 2014 Feb 26;9(2):e89612. doi: 10.1371/journal.pone.0089612. eCollection 2014.

Drugs

Indications