Skip to content

Wolbachia endobacteria in filarial infections - exploring their usefulness as targets for novel chemotherapies that are anti-filarial and improve lymphoedema

Wolbachia endobacteria in filarial infections - exploring their usefulness as targets for novel chemotherapies that are anti-filarial and improve lymphoedema: a randomised double blind placebo-controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN90861344
Enrollment
150
Registered
2009-02-13
Start date
2005-12-01
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lymphatic filariasis (Wuchereria bancrofti) Infections and Infestations Filariasis

Interventions

Study drugs and treatment regimens: 1. 200 mg/day doxycycline for 6 weeks 2. 1000 mg/day amoxicillin for 6 weeks 3. Placebo for 6 weeks Contact details for Joint Principal Investigators: Professor O

Sponsors

Volkswagen Foundation (VolkswagenStiftung) (Germany)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Men and women aged between 18 - 60 years 2. Resident in the village for five years or more 3. Clinical stage of lymphoedema (1 - 5) of at least one extremity 4. Good general health without any clinical condition requiring long-term medication 5. Minimum body weight 40 kg

Exclusion criteria

Exclusion criteria: 1. Pregnancy (if not obvious all women are tested by dipstick chemistry: beta-human chorionic gonadotrophin [BhCG]) 2. Currently breast-feeding 3. Evidence of clinically significant neurological, cardiac, pulmonary, hepatic, rheumatological, or renal disease by history, physical examination, and/or laboratory tests 4. Behavioural, cognitive or psychiatric disease that, in the opinion of the investigator, affects the ability of the volunteer to understand and cooperate with the study protocol 5. Laboratory evidence of liver disease (aspartate aminotransferase [AST], alanine aminotransferase [ALT] and/or gamma-glutamyl transferase [gGT] greater than 1.25 times the upper limit of normal of the testing laboratory) 6. Laboratory evidence of renal disease (serum creatinine greater than 1.25 times the upper limit of normal of the testing laboratory) 7. Other condition that, in the opinion of the investigator, would jeopardise the safety or rights of a volunteer participating in the trial or would render the subject unable to comply with the protocol 8. Volunteer has abused alcohol or illicit drugs during the past 6 months by history 9. History of severe allergic reaction or anaphylaxis 10. Intolerance to doxycycline or amoxicillin

Design outcomes

Primary

MeasureTime frame
Reduction of the stage of lymphoedema and number of acute attacks, measured pre-treatment as well as 3 months, 12 months and 24 months after the start of drug administration

Secondary

MeasureTime frame
1. Reduction in circulating filarial antigen levels as a measure of a macrofilaricidal effect of doxycycline 2. Change in systemic immune responses All measured pre-treatment as well as 3 months, 12 months and 24 months after the start of drug administration.

Countries

Ghana

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026