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Gastric InfluenzaPhase 3BIVIRNCT00799760

Evaluation of Efficacity and Safety of Oseltamivir and Zanamivir

A Phase 3 study testing oseltamivir + zanamivir in people with Gastric Influenza, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Terminated

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

Official record
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Trial summary

In order to prevent the high mortality due to an hypothetic pandemic caused by a newly emerging influenza A virus, antiviral drugs are seen as essential requirements for control of initial influenza outbreaks.Two antivirals are available for the treatment oseltamivir and zanamivir. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Gastric Influenza
What is being tested?
oseltamivir + zanamivir
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
541 participants
Where
1 siteFrance
Study dates
Dec 2008to Nov 2010
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

  • Influenza season declared
  • Subjects aged>18 years presenting within 36h documented of onset influenza illness
  • Who have fever >38°C
  • who present at least on of the following respiratory symptoms( cough, sore throat, nasal symptoms)
  • and one of the following constitutional symptoms(headache, myalgia, sweats and or chills or fatigue)
  • positive rapid diagnostic test for influenza A
Show all 9Show fewer
  • who have giving written informed consent prior to enrollment
  • Patient examined before the inclusion
  • able to complete a questionnaire.

Who cannot join

  • Influenza Vaccination in the 12 months prior the beginning of the study
  • Patient unable to use diskhaler of Zanamivir
  • Asthma, Chronic bronchitis,
  • Woman with a positive urine pregnancy test
  • Clearance of creatinine< 30 ml/min Chronic renal disease
  • History of depression, psychiatric disorders
Show all 9Show fewer
  • oseltamivir or zanamivir hypersensibility
  • patient treated by oseltamivir or zanamivir or amantadine 14 days before
  • Non member of the social security or CMU

Trial locations and contacts

1 site in 1 country.

France1 site
  • Centre Investigateur 155

    Deûlémont, 59000

Other trials in France

About this study

Official title: Evaluation of Combination Therapy With Oseltamivir and Zanamivir Versus Monotherapy in the Treatment of Virologically Confirmed Influenza in Primary Care a Randomises Double Blind Controlled Trial Study

In order to prevent the high mortality due to an hypothetic pandemic caused by a newly emerging influenza A virus, antiviral drugs are seen as essential requirements for control of initial influenza outbreaks.Two antivirals are available for the treatment oseltamivir and zanamivir. Emergence of Oseltamivir resistance has been recently reported. . It appeared opportune to assess the efficacy and safety of biotherapy of neuraminidase inhibitors ,will be investigated by a randomized, placebo controlled, double blind study in France, during the next winter season . This study will be conducted in 300 centres of primary care with 900 adults with a virologically suspected influenza A infection. Individuals will be randomized to 1 of the 3 treatment groups: oseltamivir +zanamivir, or oseltamivir+placebo or placebo +zanamivir.The primary judgment criteria will be the proportion of patients with negative RT PCR negative in nasal secretions at Day 2.

Read the detailed description

In the near future, a pandemic caused by a newly emerging influenza A virus has been predicted by the WHO. In order to prevent the high mortality due to the pandemic, antiviral drugs are seen as essential requirements for control of initial influenza outbreaks.

Zanamivir (GSK) and Oseltamivir (Roche) are stockpiled by the French government in the setting of pre-pandemic plan. In France, Zanamivir and Oseltamivir are both registered for the prophylactic and therapeutic use against influenza A.

Previous studies have shown that neuraminidase inhibitors (oseltamivir and zanamivir, based treatment) are associated with shorter illness duration and resulted in significant decrease of viral load in the nasal secretions.

In Winter season 2007-2008 the presence of oseltamivir-resistant viruses circulating in the community in several European countries is in marked contrast to the previous winter seasons, when oseltamivir resistance was detected in <1% of circulating strains from . Patients infected by viruses with neuraminidases carrying these mutations, didn't present unusual disease syndromes.

Although zanamivir and oseltamivir are both issued from the same class ,a combination of these two neuraminidase inhibitors could reduce the duration and severity of acute influenza and the incidence of secondary complications, reduce the spread of influenza, and the frequency of neuraminidase inhibitors mutations. An evaluation of the combination of oseltamivir and zanamivir versus zanamivir with placebo versus oseltamivir associated with placebo in the treatment of a virologically suspected influenza in primary care will be investigated in a randomised double blind placebo controlled trial study in France during the winter season 2008-2009.

Primary outcome measure:

Evaluate viral efficacy after 2 days of biotherapy oseltamivir and zanamivir versus zanamivir with placebo versus oseltamivir associated with placebo.

Patients and methods:

Randomised double blind, placebo controlled multicenter trial conducted during the influenza season 2008-2009 Arm 1: oral oseltamivir 75mg twice daily + zanamivir 10 mg inhaled by mouth twice daily during 5 days Arm 2: oral oseltamivir 75mg twice daily+ placebo inhaled by mouth twice daily during 5 days Arm 3: oral placebo twice daily + zanamivir 10 mg inhaled by mouth twice daily during 5 days.

Schedule:

D0: rapid test diagnostic for influenza A urine pregnancy test for women inclusion /randomisation initiation of treatment D2:nasal sample for influenza RNA RTPCR D5:End of treatment D7:medical evaluation (follow up evaluation) D14:nurse call (clinical evaluation)

Being tested
oseltamivir + zanamivir, oseltamivir + zanamivir's placebo, oseltamivir's placebo + zanamivir
Keywords
influenza A, neuraminidase inhibitor, oseltamivir, zanamivir, treatment outcome, resistance, mutation, combination therapy, monotherapy, pandemic, primary care, randomized controlled trials, antiviral agent

What participants receive

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

  • oseltamivir + zanamivirDrug

    Also called experimental Arm

    oral oseltamivir 75mg twice daily + zanamivir 10 mg inhaled by mouth twice daily during 5 days

  • oseltamivir + zanamivir's placeboDrug

    Also called Active comparator Arm

    oral oseltamivir 75mg twice daily+ placebo inhaled by mouth twice daily during 5 day

  • oseltamivir's placebo + zanamivirDrug

    Also called active comparator arm

    oral placebo twice daily + zanamivir 10 mg inhaled by mouth twice daily during 5 day

Study groups in NCT00799760
Study groupRoleWhat they receive
1Experimentaloral oseltamivir 75mg twice daily + zanamivir 10 mg inhaled by mouth twice daily during 5 days
Receives: Drug: oseltamivir + zanamivir
2Active comparatororal oseltamivir 75mg twice daily+ placebo inhaled by mouth twice daily during 5 days
Receives: Drug: oseltamivir + zanamivir's placebo
3Active comparatororal placebo twice daily + zanamivir 10 mg inhaled by mouth twice daily during 5 day
Receives: Drug: oseltamivir's placebo + zanamivir

What is being measured

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

  1. RT-PCR for influenza A virus in nasal secretion

    Measured: 2 days

Secondary outcomes (8)
  1. Time to resolution of influenzal illness Severity of illness

    Measured: 14 days

  2. Severity of illness

    Measured: 14 Days

  3. Adverse event (graded on a four -point scale:mild-moderate- severe-life threatening)

    Measured: 14 days

  4. Compliance to antiviral treatment

    Measured: 14 days

  5. Number of persons with influenza illness in households contact

    Measured: 14 days

  6. Evaluation of restricted activity (requirement for additional health car)

    Measured: 14 days

  7. Frequency of and need for antibiotic treatment of influenza (otitis media, bronchitis, sinusitis, and pneumonia )

    Measured: 14 days

  8. Frequency of resistance to antiviral drugs

    Measured: 14 days

Timeline

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

  1. First posted1 Dec 2008 (estimated)
  2. Study startDec 2008
  3. Primary completionNov 2009
  4. Study completionNov 2010

Why it stopped: Just Terminated for the end of the pandemia

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
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
541 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00799760
Sponsor's protocol ID
P060209
Other IDs
AOM 08209, 2008-004026-16, 2008
Acronym
BIVIR
Status last verified
Nov 2008
First submitted
28 Nov 2008
Last updated
19 Mar 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Blanchon T, Mentre F, Charlois-Ou C, Dornic Q, Mosnier A, Bouscambert M, Carrat F, Duval X, Enouf V, Leport C; Bivir Study Group. Factors associated with clinical and virological response in patients treated with oseltamivir or zanamivir for influenza A during the 2008-2009 winter. Clin Microbiol Infect. 2013 Feb;19(2):196-203. doi: 10.1111/j.1469-0691.2011.03751.x. Epub 2012 Jan 20.

    PubMed 22264308
  • Galimard JE, Chevret S, Curis E, Resche-Rigon M. Heckman imputation models for binary or continuous MNAR outcomes and MAR predictors. BMC Med Res Methodol. 2018 Aug 31;18(1):90. doi: 10.1186/s12874-018-0547-1.

    PubMed 30170561
  • Flicoteaux R, Protopopescu C, Tibi A, Blanchon T, Werf SV, Duval X, Mosnier A, Charlois-Ou C, Lina B, Leport C, Chevret S. Factors associated with non-persistence to oral and inhaled antiviral therapies for seasonal influenza: a secondary analysis of a double-blind, multicentre, randomised clinical trial. BMJ Open. 2017 Jul 10;7(7):e014546. doi: 10.1136/bmjopen-2016-014546.

    PubMed 28698321
  • Duval X, van der Werf S, Blanchon T, Mosnier A, Bouscambert-Duchamp M, Tibi A, Enouf V, Charlois-Ou C, Vincent C, Andreoletti L, Tubach F, Lina B, Mentre F, Leport C; Bivir Study Group. Efficacy of oseltamivir-zanamivir combination compared to each monotherapy for seasonal influenza: a randomized placebo-controlled trial. PLoS Med. 2010 Nov 2;7(11):e1000362. doi: 10.1371/journal.pmed.1000362.

    PubMed 21072246

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing oseltamivir + zanamivir in people with Gastric Influenza, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

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 9 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 19 Mar 2012. 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 France. 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: Just Terminated for the end of the pandemia). 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?

RT-PCR for influenza A virus in nasal secretion (time frame: 2 days). 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 NCT00799760, which also lists 4 linked publications.

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 19 Mar 2012.

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