Co-trimoxazole as Maintenance Therapy for Meliodosis

This study is currently recruiting participants. (see Contacts and Locations)
Verified August 2016 by Khon Kaen University
Information provided by (Responsible Party):
Siriluck Anunnatsiri, Khon Kaen University Identifier:
First received: August 18, 2011
Last updated: August 30, 2016
Last verified: August 2016
This is a randomised, open-labelled, controlled trial to compare the efficacy and effectiveness on relapse-free rate of 12-week versus 20-week oral eradication treatment of melioidosis. The study population includes 800 patients with culture-confirmed melioidosis whom intravenous intensive antibiotics and 12 weeks of oral eradication therapy have been completed. Patients will be randomised to either stop the eradication treatment or continue current oral treatment for 8 more weeks. The study aim to optimise the regimen used to treat melioidosis for better compliance and reducing unnecessary use of antibiotics.

Condition Intervention
Drug: Co-trimoxazole 12
Drug: Co-trimoxazole 20

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Comparison Between 12 vs. 20 Weeks of Co-trimoxazole as Maintenance Therapy for Melioidosis

Resource links provided by NLM:

Further study details as provided by Khon Kaen University:

Primary Outcome Measures:
  • 1-year non relapse rate [ Time Frame: 1 year ]
    This is defined as clinical features of meliodosis after initial improvement, in association with cultures from any site positive for Burkhoderia pseudomallei. This can be any time point during or after stopping antibiotic treatment.

Secondary Outcome Measures:
  • Clinical Recurrence [ Time Frame: 1 year ]
    Recurrent clinical features of meliodosis treated as such but not confirmed by positive culture.

  • Treatment failure [ Time Frame: 9 weeks ]
    Clinical decision to change treatment according to inadequate response to therapy.

  • Mortality [ Time Frame: 1 year ]
  • Adverse Drug Reactions [ Time Frame: 9 weeks ]
    Adverse events that are caused by the drug including drug allergy.

  • Drug compliance [ Time Frame: 12 or 20 weeks ]
    This will be done by interviewing and pill counting.

Estimated Enrollment: 800
Study Start Date: August 2011
Estimated Study Completion Date: December 2020
Estimated Primary Completion Date: December 2020 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Co-trimoxazole 12
Receive treatment with co-trimoxazole for 12 weeks.
Drug: Co-trimoxazole 12
Receive treatment with co-trimoxazole for 12 weeks.
Experimental: Co-trimoxazole 20
Receive treatment with co-trimoxazole for 20 weeks.
Drug: Co-trimoxazole 20
Receive treatment with co-trimoxazole for 20 weeks.


Ages Eligible for Study:   15 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age > 15 years
  2. Culture-confirmed melioidosis
  3. Satisfactory completion of intravenous therapy and currently on oral medication for 12(+2) weeks without any clinical evidence of active melioidosis
  4. High likelihood of completing at least 6 months follow up
  5. Willingness to participate in the study and written, informed consent obtained from the patient

Exclusion Criteria:

  1. Pregnancy or breast feeding
  2. Contraindications to TMP-SMX: G6PD, severe adverse reactions grade 3-4 occurring during first 12 weeks of treatment
  3. Relapse melioidosis with at least 2 year symptom free period from last episode
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01420341

Contact: Siriluck Anunnatsiri, MD +6643 363 664

Khon Kaen Univerisity Recruiting
Khon Kaen, Thailand
Contact: Siriluck Anunnatsiri, MD    +6643 363 664      
Principal Investigator: Siriluck Anunnatsiri, MD         
Sponsors and Collaborators
Khon Kaen University
Principal Investigator: Siriluck Anunnatsiri, MD Khon Kaen Univerisity
  More Information

Responsible Party: Siriluck Anunnatsiri, MD, Khon Kaen University Identifier: NCT01420341     History of Changes
Other Study ID Numbers: HE541074 
Study First Received: August 18, 2011
Last Updated: August 30, 2016

Keywords provided by Khon Kaen University:

Additional relevant MeSH terms:
Trimethoprim, Sulfamethoxazole Drug Combination
Anti-Infective Agents
Anti-Infective Agents, Urinary
Renal Agents
Anti-Bacterial Agents
Antiprotozoal Agents
Antiparasitic Agents processed this record on January 19, 2017