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InfectionsPhase 4NCT01021995

Echinacea Safety Study

A Phase 4 study testing echinacea in people with Infections, run by A. Vogel AG at 1 site in United Kingdom.

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

Extracts produced from Echinacea purpurea are traditionally used for the prevention and the acute treatment of influenzal infections like the common cold. The aim of this clinical study is to assess clinical safety and efficacy of a treatment with Echinacea in comparison to placebo. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Infections
What is being tested?
echinacea
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
757 participants
Where
1 siteUnited Kingdom
Study dates
Oct 2009to Apr 2011
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • On average more than 2 cold episodes per year
  • Age above 18 years
  • Good physical condition
  • Signed informed consent

Who cannot join

  • Women without appropriate and effective contraception
  • Participation in a clinical trial 30 days prior to this trial
  • Pregnant or breast feeding women
  • Subjects with pre-existing cold symptoms for more than 24h at inclusion
  • Concurrent participation in another clinical trial
  • Intake of antimicrobial and/or antiviral medications at inclusion
Show all 17Show fewer
  • Alcohol and/or drug abuse, narcotic drug addiction before and during trial (more than 50 gr and / or 10 cigarettes per day)
  • Psychiatric disorders which may influence the results of the trial,
  • epilepsy, suicide attempts
  • Planned surgical intervention during the trial.
  • Serious chronic diseases which influence the absorption, metabolism and the elimination of the investigational product, especially progressive systemic illnesses like tuberculosis, leukaemia,
  • collagen disorders and multiple sclerosis
  • Known AIDS, HIV-infections and autoimmune diseases
  • Known diabetes mellitus (type 1)
  • Corticosteroid-treated asthma
  • Atopic and allergic subjects (under medicinal treatment)
  • Known allergy to plants of the composite family (Asteraceae)

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Cardiff School of Biosciences

    Cardiff, Wales, CF103AX

Other trials in United Kingdom

About this study

Official title: Safety and Efficacy of Long-term Treatment With Echinaforce® Over 4 Months

Extracts produced from Echinacea purpurea are traditionally used for the prevention and the acute treatment of influenzal infections like the common cold. The aim of this clinical study is to assess clinical safety and efficacy of a treatment with Echinacea in comparison to placebo. 750 healthy subjects with a history of equal or more than 2 cold episodes per year will be recruited during October and November 2009 and will be treated with either Echinacea or placebo over a period of 4 months.

Throughout the study period adverse events (AEs) and adverse drug reactions (AEs with at least a possible causal relation to the treatment) will be recorded.

Common cold related symptoms will be recorded in a daily diary.

Conditions
Infections
Being tested
echinacea, placebo
Keywords
Safety of Echinacea in comparison to placebo
Medical subject headings
Infections

What participants receive

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

  • echinaceaDrug

    drops, 0.9 ml, tid for 4 months

  • placeboDrug

    drops, 0.9 ml tid for 4 months

Study groups in NCT01021995
Study groupRoleWhat they receive
echinaceaExperimentalNot described
Receives: Drug: echinacea
placeboPlacebo comparatorNot described
Receives: Drug: placebo

What is being measured

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

  1. Occurrence of Adverse Drug Reactions

    Measured: 4 months

Secondary outcomes (1)
  1. efficacy

    Measured: 4 months

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 2009 (estimated)
  2. Study startOct 2009
  3. Primary completionAug 2010
  4. Study completionApr 2011

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
757 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01021995
Sponsor's protocol ID
920'134
Status last verified
Jun 2011
First submitted
30 Nov 2009
Last updated
23 Jul 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing echinacea in people with Infections, run by A. Vogel AG at 1 site in United Kingdom.

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 4 inclusion and 17 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 23 Jul 2014. 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 United Kingdom. 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. Some participants in this study may receive a placebo. 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?

Occurrence of Adverse Drug Reactions (time frame: 4 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 Jul 2014.

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