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Clostridium InfectionsPhase 3NCT00384527

Study of Nitazoxanide in the Treatment of Clostridium Difficile-associated Disease

A Phase 3 study testing Nitazoxanide and Vancomycin in people with Clostridium Infections, run by Romark Laboratories L.C. at 10 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The primary objective of the study is to demonstrate non-inferiority of nitazoxanide compared to vancomycin in resolving symptoms of Clostridium difficile-associated disease (CDAD). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Clostridium Infections
What is being tested?
Nitazoxanide and Vancomycin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
10 sitesUnited States
Study dates
Dec 2006to Oct 2007
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥ 18 years.
  • Patients with new onset of disease evidenced by diarrhea (≥ 3 unformed stools within 24 hours), and one or more of the following symptoms of CDAD:
  • abdominal pain or cramps
  • peripheral leukocytosis
  • fever
  • C. difficile toxin A or B detected in a stool specimen obtained within 3 days before enrollment by enzyme immunoassay.
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  • Patients willing to avoid the following medications during the study:
  • oral and intravenous metronidazole
  • oral vancomycin
  • anti-peristaltic drugs
  • opiates (patients on opiates may be included in the study if they were taking opiates prior to enrollment and the dose is not increased during the study)
  • Saccharomyces cerevisiae (baker's yeast)
  • Lactobacillus GG
  • cholestyramine
  • colestipol

Who cannot join

  • Patients with other known causes of diarrhea or colitis (e.g., Shigella, Salmonella, Cryptosporidium parvum, Giardia lamblia, Entamoeba histolytica, inflammatory bowel disease, irritable bowel syndrome, advanced AIDS or chemotherapy for malignancy).
  • Patients that commonly have 3 or more stools per day and/or severe abdominal pain in the absence of CDAD.
  • Patients with severe lactose intolerance.
  • Patients with more than 1 recurrence of CDAD during the 6 months prior to enrollment.
  • Patients unable to take oral medications.
  • Use within 1 week of enrollment of any drug or therapy with anti-C. difficile activity such as oral or intravenous metronidazole and oral vancomycin. [Patients that have taken up to 3 doses of metronidazole or vancomycin can be included in the study].
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  • Females of child bearing age who are either pregnant, breast-feeding or not using birth control and are sexually active.
  • Patients who are either clinically unstable (e.g., fulminant disease patients with signs of toxic megacolon, imminent perforation, colectomy or death) or unlikely to live throughout the 31-day duration of the study due to underlying illness.
  • History of hypersensitivity to nitazoxanide or vancomycin or any active ingredient in the formulations.

Trial locations and contacts

10 sites in 1 country.

10 sites in 1 country

United States10 sites
  • John D. Dingell VAMC

    Ann Arbor, Michigan, 48105

  • Atlanta Institute for Medical Research

    Atlanta, Georgia, 30030

  • Wellstar Clinical Trials

    Atlanta, Georgia, 30060

  • Bay Pines VAMC

    Bay Pines, Florida, 33744

  • Michael E. Debakey VAMC

    Houston, Texas, 77030

  • Richard L. Roudebush VAMC

    Indianapolis, Indiana, 46202

  • Winthrop University Hospital

    Mineola, New York, 11501

  • Oschner Clinic Foundation

    New Orleans, Louisiana, 76121

  • Torrance Memorial Hospital

    Torrance, California, 90505

  • Center for Digestive Health

    Troy, Michigan, 48098

Other trials in United States

About this study

Official title: Multicenter, Double-blind Study of Nitazoxanide Compared to Vancomycin in the Treatment of Clostridium Difficile-associated Disease

The primary objective of the study is to demonstrate non-inferiority of nitazoxanide compared to vancomycin in resolving symptoms of Clostridium difficile-associated disease (CDAD).

Being tested
Nitazoxanide, Vancomycin
Keywords
Clostridium difficile
Medical subject headings
Clostridium Infections

What participants receive

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

  • NitazoxanideDrug

    Also called Alinia

    One nitazoxanide 500 mg tablet twice daily plus one vancomycin-placebo capsule four times daily for 10 days.

  • VancomycinDrug

    Also called VANCOCIN

    One vancomycin 125 mg capsule four times daily plus one nitazoxanide-placebo twice daily for 10 days.

Study groups in NCT00384527
Study groupRoleWhat they receive
1ExperimentalNot described
Receives: Drug: Nitazoxanide
2Active comparatorNot described
Receives: Drug: Vancomycin

What is being measured

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

  1. Clinical response (resolution of all symptoms of CDAD)

    Measured: End of treatment (day 12-14 after beginning treatment)

Secondary outcomes (4)
  1. Time from first dose to resolution of symptoms of CDAD

    Measured: Any time after beginning treatment and must be sustained through end of treatment visit

  2. Microbiological Recurrence

    Measured: Clinical response at end of treatment visit with recurrence of symtpoms prior to study day 31 and C. difficile toxins detected in stool.

  3. Sustained clinical response

    Measured: End of treatment response sustained through study day 31.

  4. Clinical Recurrence

    Measured: Clinical response at the end of treatment with recurrent symptoms of CDAD prior to study day 31, but no C. difficile toxins detected.

Timeline

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

  1. First posted6 Oct 2006 (estimated)
  2. Study startDec 2006
  3. Primary completionOct 2007
  4. Study completionOct 2007

Why it stopped: Study was terminated early due to slow recruitment.

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
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00384527
Sponsor's protocol ID
RM01-3032
Status last verified
Oct 2008
First submitted
5 Oct 2006
Last updated
5 May 2015
Results posted
No
Data monitoring committee
No

Publications

  • Musher DM, Logan N, Bressler AM, Johnson DP, Rossignol JF. Nitazoxanide versus vancomycin in Clostridium difficile infection: a randomized, double-blind study. Clin Infect Dis. 2009 Feb 15;48(4):e41-6. doi: 10.1086/596552.

    PubMed 19133801

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Nitazoxanide and Vancomycin in people with Clostridium Infections, run by Romark Laboratories L.C. at 10 sites in United States.

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 15 inclusion and 9 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: stopped early, as of the sponsor's last update on 5 May 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in United States. 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 was stopped early (reason given: Study was terminated early due to slow recruitment.). Results are not available in the source record.

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?

Clinical response (resolution of all symptoms of CDAD) (time frame: End of treatment (day 12-14 after beginning treatment)). 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 NCT00384527, 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 5 May 2015.

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