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AzTrials

DiarrhoeaPhase 3NCT00408356

Immunological and Clinical Responses to Zinc in Children With Diarrhoea

A Phase 3 study testing Zinc in people with Diarrhoea, run by International Centre for Diarrhoeal Disease Research, Bangladesh at 1 site in Bangladesh.

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

Zinc deficiency has been found to be widespread among children in developing countries.Clinical and field studies have consistently observed an association between zinc deficiency and higher rates of infectious diseases, including skin infections, diarrhea, respiratory infections, malaria, and delayed wound healing. Read more about this study

Who is it for?
Ages 6 to 24 months
Conditions the study is for
Diarrhoea
What is being tested?
Zinc
How many people
338 participants
Where
1 siteBangladesh
Study dates
Nov 2004to Nov 2006
Phase
Phase 3
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 6 to 24 months
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Children 6-24 months of age with acute childhood diarrheal illness.

Who cannot join

  • Severe dehydration, suspected cholera or pneumonia, chronic illness, bipedal edema (seriously ill children will be referred to ICDDR,B/Shishu Hospital).
  • The child is currently receiving zinc (as a treatment or supplement)
  • Wt/length, z-score below -3 (these children will be referred to ICDDR,B/ Shishu Hospital)
  • Already participating in another study involving nutritional or therapeutic interventions

Trial locations and contacts

1 site in 1 country.

Bangladesh1 site
  • ICDDR,B. Mirpur Field Site

    Dhaka, 1212

Other trials in Bangladesh

About this study

Official title: Immunological and Clinical Responses to Zinc: A Randomized, Double-Blind Trial of Zinc Treatment vs. Zinc Treatment Plus Daily Supplementation for 3 Months Among Children Under 2 Years of Age With an Acute Diarrheal Illness.

Zinc deficiency has been found to be widespread among children in developing countries.Clinical and field studies have consistently observed an association between zinc deficiency and higher rates of infectious diseases, including skin infections, diarrhea, respiratory infections, malaria, and delayed wound healing. Based upon the impact of zinc deficiency on diarrheal disease alone, it is estimated correction of this deficiency could save 450,000 under-five deaths annually. What is the physiological explanation for this? Zinc has been identified to play critical roles in metallo-enzymes, poly-ribosomes, the cell membrane, and cellular function, leading to the understanding that it also plays a central role in cellular growth and in the function of the immune system. With zinc deficiency epithelial barriers are compromised and multiple components of the immune system malfunction. The obvious conclusion is that zinc deficiency results in diminished immunological competence that in turn leads to an increased risk for infectious diseases and greater severity of illnesses. Whether this is the case requires substantiation. A related, but more pragmatic question is the value added of zinc supplementation in addition to zinc treatment. The scale-up strategy being pursued in Bangladesh is to provide zinc for 10 days as a treatment at the time of a diarrhea episode. This is in accordance with recently revised WHO recommendations for the treatment of childhood diarrhea (WHO, in press). Can we conclude there is no or minimal value added to continuing zinc as a dietary supplement in zinc deficient children following an acute episode? If there is added benefit, can this be explained by improvement in zinc levels and/or immune function? The aims of this study include:1. In children six to twenty-four months of age with an acute episode of diarrhea attributable to enterotoxigenic E. coli (ETEC), to describe the innate and adaptive immune response to zinc and to relate changes in immune function or zinc status to the occurrence of repeat infectious illnesses over a 9 month period of observation. 2a. In children six to twenty-four months of age with an acute episode of diarrhea with enterotoxigenic E. coli (ETEC), and other non-ETEC diarrhea, to determine the value added of zinc supplementation following treatment in terms of the future occurrence of ACD, ARI, and impetigo and 2b. to assess the impact of zinc supplementation on health services utilization and household expenditures for ACD, ARI and impetigo.

Conditions
Diarrhoea
Being tested
Zinc
Keywords
Zinc treatment, supplementation, Enterotoxigenic E. coli, diarrhoea
Medical subject headings
Diarrhea

What participants receive

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

  • ZincDrug

What is being measured

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

  1. To evaluate innate and adaptive immune response.

  2. Future occurrence of acute diarrhoea, ARI and impetigo.

Timeline

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

  1. First posted6 Dec 2006 (estimated)
  2. Study startNov 2004
  3. Primary completionAug 2006
  4. Study completionNov 2006

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
338 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00408356
Sponsor's protocol ID
2004-017
Status last verified
Feb 2009
First submitted
5 Dec 2006
Last updated
20 Feb 2009
Results posted
No
Data monitoring committee
Yes

Publications

  • Sheikh A, Shamsuzzaman S, Ahmad SM, Nasrin D, Nahar S, Alam MM, Al Tarique A, Begum YA, Qadri SS, Chowdhury MI, Saha A, Larson CP, Qadri F. Zinc influences innate immune responses in children with enterotoxigenic Escherichia coli-induced diarrhea. J Nutr. 2010 May;140(5):1049-56. doi: 10.3945/jn.109.111492. Epub 2010 Mar 17.

    PubMed 20237063

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Zinc in people with Diarrhoea, run by International Centre for Diarrhoeal Disease Research, Bangladesh at 1 site in Bangladesh.

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 1 inclusion and 4 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 20 Feb 2009. 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 Bangladesh. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

To evaluate innate and adaptive immune response.. The study lists 2 primary outcomes in all. 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 NCT00408356, 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 20 Feb 2009.

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