ClinicalTrials.gg
CompletedNCT02558738Updated Jan 30, 2026

Non Interventional Clinical Investigation of Ectoin Ear Spray in Skin Treatment of Outer Ear Canal Irritations

An observational study in Pruritus, Dermatitis and Otitis Externa, sponsored by Bitop AG. Completed at 3 sites in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-30.

Sponsored by Bitop AG · Observational

Study type
Observational
Model
Case-crossover
Time perspective
Prospective
Enrollment
60
Ages
18 Years and older
Sex
All
01

Study summary

In this observational study, insights regarding the tolerability and influence on the quality of life of the topical treatment with Ectoin Ear Spray compared to Normison ear spray shall be gained under real life conditions in patients with chronic eczematous irritations and pruritus of the outer ear canal.

02

Conditions studied

  • Pruritus
  • Dermatitis
  • Otitis Externa

Keywords

  • dermatitis and irritations at the outer ear canal
  • prevention of subacute otitis externa
03

In context

Pruritus

490 studies on the registry are indexed under Pruritus; 93 are open to participants now.

This study's enrollment of 60 is below the median of 128 across 48 observational studies indexed under Pruritus.

Browse Pruritus studies →

Lead sponsor

Bitop AG is the lead sponsor of 26 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

primary care ENT units study the therapeutic process in this observational trial in total of 60 patients in three centres with dermatological irritations of the outer ear canal and pruritus

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • according to instructions for use

Exclusion criteria

Exclusion Criteria:

  • otitis media, acute otitis media
  • acute otitis externa
  • earache
  • perforation of the ear-drum (membrana tympani)
  • infections at the ear
  • systemic treatment or local at the ear
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Observational model
Case-crossover
Time perspective
Prospective
Enrollment
60 participants (actual)
Patient registry
No

Groups and cohorts

  • Ectoin Ear Spray

    treatment according to instruction for use

    Device: ear spray

  • Normison ear spray

    treatment according to instruction for use

    Device: ear spray

Interventions

  • Deviceear spray
06

What researchers measure

Primary outcomes

  1. Pruritus at outer ear canal

    assessment of the symptoms on visual analogous scale

    Time frame: 14 days

Secondary outcomes

  1. Severity of pruritus

    assessment of the symptom on Visual Analog Score on values between 0 and 10

    Time frame: 14 days

  2. Dermatitis

    assessment of the symptoms of scaly dermatitis on Visual Analog Score on values between 0 and 10

    Time frame: 14 days

  3. burning issue on skin

    assessment of the symptom on Visual Analog Score on values between 0 and 10

    Time frame: 14 days

  4. Tolerability: change in VAS score

    assessment of tolerability on the Visual Analogue Score on values between 0 and 10

    Time frame: 14 days

  5. Efficacy: change in VAS score

    assessment of efficacy on Visual Analog Score on values between 0 and 10

    Time frame: 14 days

  6. Change in number of adverse events

    incidence of adverse events and correlation to therapy

    Time frame: 14 days

07

Study locations

3 sites
  • HNO Praxis Elmshorn
    Elmshorn, Germany
  • HNO Moeller
    Lüneburg, 21335, Germany
  • HNO Bergmann-Omar
    Norderstedt, 22846, Germany
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2015 to primary completion in Aug 2015, 1 month.

Of 21 observational studies under Pruritus, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 35. This study's 1 month is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 14, 2015
First posted
Sep 24, 2015
StartActual
Jun 22, 2015
Primary completionActual
Aug 14, 2015
CompletionActual
Sep 2015
Last update
Jan 30, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02558738
Lead sponsor
Bitop AG
Responsible party
Sponsor
First posted
Sep 24, 2015
Start date
Jun 22, 2015
Primary completion
Aug 14, 2015
Completion
Sep 2015
Last update
Jan 30, 2026

Study contacts

Uwe Sonnemann, Dr med
principal investigator · HNO Praxis Elmshorn

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.

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