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Filarial; InfestationPhase 4NCT02005653

Alternate Chemotherapy Regimens for the Clearance of W.Bancrofti Infection

A Phase 4 study testing Diethylcarbamazine, Albendazole and Doxycycline in people with Filarial; Infestation, run by Indian Council of Medical Research at 1 site in India.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Diethylcarbamazine (DEC) essentially a micro-filaricidal drug is given for 12 days as standard treatment for the clearance of W. bancrofti infection. It takes about one year for the individuals to completely clear the microfilaria from the blood. It takes another two to four years to clear the antigen. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Filarial; Infestation
What is being tested?
Diethylcarbamazine, Albendazole and Doxycycline
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
146 participants
Where
1 siteIndia
Study dates
Feb 2009to Aug 2013
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Residing in or around Pondicherry and adjoining Tamilnadu areas
  • Night blood microfilaria counts > 10 mf/ml by membrane filtration
  • No history of treatment for filarial infection for the last two years at least
  • Willing for home visits by the staff of the center
  • Willing to give written informed consent

Who cannot join

  • Body weight less than 30 kg
  • Hepatic or renal disease as evidenced by clinical or biochemical abnormalities. - concurrent illness like hypertension, diabetes mellitus, cardiac conditions and epilepsy requiring chronic medication
  • Psychiatric illness
  • Patients under tetracycline or doxycycline therapy
  • History of de-worming by albendazole or other anti-helminthic during last one year
  • Pregnancy or lactation

Trial locations and contacts

1 site in 1 country.

India1 site
  • Vector Control Research Centre

    Puducherry, Puducherry, 605006

Other trials in India

About this study

Official title: Alternate Chemotherapy Regimens for the Clearance of W.Bancrofti Infection: Double Blind Randomised Clinical Trial (RCT) to Study the Efficacy of Different Co-administration and Sequential Administration

Diethylcarbamazine (DEC) essentially a micro-filaricidal drug is given for 12 days as standard treatment for the clearance of W. bancrofti infection. It takes about one year for the individuals to completely clear the microfilaria from the blood. It takes another two to four years to clear the antigen. The aim of the present study is to shorten the time taken for clearing the Mf and antigen from the blood either by co-administration or sequential administration of a macrofilaricidal drug, Albendazole or doxycycline. This study is a randomized, double blind, controlled clinical trial to study the efficacy of these drug combinations in complete clearance the Mf and antigen from the blood in shorter span of 180 days and 365 days respectively.

Read the detailed description

Purpose:

Lymphatic dwelling parasite W. bancrofti is the most common cause of secondary lymphoedema. Till today, there is no effective treatment protocol for the complete clearance of W. bancrofti infection, in a short duration of time.

Methods:

The investigators conducted a double blind RCT under field conditions recruiting 146 asymptomatic W. bancrofti infected individuals. Participants were randomly assigned one of the four regimens for 12 days, DEC 300 mg + Doxycycline 100 mg co-administration or DEC 300 mg + Albendazole 400 mg co-administration or DEC 300 mg + Albendazole 400 mg sequential administration or control regimen DEC 300 mg. Participants were followed up at 13, 26 and 52 weeks post-treatment for the clearance of infection.

Being tested
Diethylcarbamazine, Albendazole, Doxycycline
Keywords
Lymphatic filariasis, W. bancrofti, DEC, Albendazole, Doxycycline
Medical subject headings
Parasitic Diseases, Elephantiasis, Filarial

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DiethylcarbamazineDrug

    Also called DEC

    Diethylcarbamazine 300 mg tablet as single dose per day for 12 days

  • AlbendazoleDrug

    Also called Alb

    Experimental

  • DoxycyclineDrug

    Also called Doxy

    Experimental

Study groups in NCT02005653
Study groupRoleWhat they receive
DEC + ALB sequentialExperimentalDiethylcarbamazine 300 mg tablet and albendazole 400 mg tablet at 30 days post treatment sequentially
Receives: Drug: Diethylcarbamazine; Drug: Albendazole
DEC + ALB co-adminExperimentalDiethylcarbamazine 300 mg tablet and albendazole 400 mg tablet per day given orally as single dose for 12 days
Receives: Drug: Diethylcarbamazine; Drug: Albendazole
DEC + DOXY co-adminExperimentalDiethylcarbamazine 300 mg tablet and Doxycycline 100 mg per day given orally as single dose for 12 days
Receives: Drug: Diethylcarbamazine; Drug: Doxycycline
Diethylcarbamazine (DEC)Active comparatorDiethylcarbamazine 300 mg tablet as single dose orally per day for 12 days
Receives: Drug: Diethylcarbamazine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. complete clearance of mf in 80% of the infected

    Measured: At 13th week (91 days) post therapy

Secondary outcomes (1)
  1. Complete clearance Mf and complete clearance of antigen from the infected

    a)Complete clearance of Mf by 26 weeks (180 days) post therapy. b) Complete clearance of antigen by 52 weeks (365days) post therapy

    Measured: 26 and 52 weeks post therapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Dec 2013 (estimated)
  2. Study startFeb 2009
  3. Primary completionSep 2011
  4. Study completionAug 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
146 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02005653
Sponsor's protocol ID
IM0603-CEC-VCRC
Status last verified
Dec 2013
First submitted
4 Dec 2013
Last updated
9 Dec 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • De Britto RL, Vanamail P, Sankari T, Vijayalakshmi G, Das LK, Pani SP. Enhanced efficacy of sequential administration of Albendazole for the clearance of Wuchereria bancrofti infection: Double blind RCT. Trop Biomed. 2015 Jun;32(2):198-209.

    PubMed 26691247

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Diethylcarbamazine, Albendazole and Doxycycline in people with Filarial; Infestation, run by Indian Council of Medical Research at 1 site in India.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Dec 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in India. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

complete clearance of mf in 80% of the infected (time frame: At 13th week (91 days) post therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02005653, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Dec 2013.

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