ClinicalTrials.gg
CompletedNCT01621256Updated Dec 21, 2018

Efficacy, Safety, and Tolerability of Ancrod in Patients With Sudden Hearing Loss

A Phase 1/2 interventional study of Ancrod and Saline solution in Hearing Loss, Deafness and Hearing Loss, Sensorineural, sponsored by Nordmark Arzneimittel GmbH & Co. KG. Completed at 7 sites in 2 countries. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2018-12-21.

Sponsored by Nordmark Arzneimittel GmbH & Co. KG · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
31
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The purpose of this study is to determine whether ancrod is effective and safe in the treatment of sudden sensorineural hearing loss (SSHL).

02

Conditions studied

  • Hearing Loss
  • Deafness
  • Hearing Loss, Sensorineural
  • Hearing Disorders
  • Ear Diseases
03

In context

Hearing Loss

796 studies on the registry are indexed under Hearing Loss; 193 are open to participants now.

This study's enrollment of 31 is below the median of 44 across 561 interventional studies indexed under Hearing Loss.

Browse Hearing Loss studies →

Lead sponsor

Nordmark Arzneimittel GmbH & Co. KG is the lead sponsor of 3 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 to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Unilateral idiopathic sudden sensorineural hearing loss ≥30 dB
  • Symmetric hearing prior to onset of SSHL
  • Enrollment has to be accomplished within 7 days after SSHL onset

Exclusion criteria

Exclusion Criteria:

  • Bilateral SSHL
  • Incomplete recovery after previous SSHL
  • Previously existing, known retrocochlear hearing loss
  • Any history of any ear operation or local inflammatory disease in the past one year
  • History of blunt or penetrating ear trauma, head trauma, barotrauma, or acoustic trauma immediately preceding SSHL
  • History of Meniere's disease, hearing loss, radiation-induced hearing loss, endolymphatic hydrops.
  • Treatment with for any reason within the preceding 30 days.
  • Body weight > 140 kg
Terms in these criteria, in plain language(2)

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

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

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
31 participants (actual)

Study arms

  • Experimental
    Ancrod

    Ancrod

    Drug: Ancrod

  • Placebo comparator
    Saline solution

    Saline solution

    Drug: Saline solution

Interventions

  • DrugAncrod

    Day 1: Intravenous infusion; Days 2, 4, and 6: Subcutaneous injections

    Also known as: Viprinex, NM-V

  • DrugSaline solution

    Day 1: Intravenous infusion; Days 2, 4, and 6: Subcutaneous injections

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Change in PTA (pure tone audiogram) in the affected ear

    Time frame: From baseline to Day 8

Secondary outcomes

  1. Change in speech recognition in the affected ear

    Time frame: From baseline to Day 8

Other outcomes

  1. Patient assessment of change in hearing impairment

    Time frame: From baseline to Day 8, Day 30 and Day 90

  2. Change in fibrinogen concentration

    Time frame: From baseline to Day 2 and Day 8

  3. Change in biomarkers

    Time frame: From baseline to Day 8

07

Study locations

7 sites
  • Site CZ
    Hradec Králové, Czechia
  • Site CZ
    Praha, Czechia
  • Site D
    Göttingen, Germany
  • Site D
    Hamburg, Germany
  • Site D
    Hannover, Germany
  • Site D
    Landsberg am Lech, Germany
  • Site D
    München, Germany
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 21, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01621256
Lead sponsor
Nordmark Arzneimittel GmbH & Co. KG
Collaborators
ClinSupport GmbH, MWI Medizinisches Wirtschaftsinstitut GmbH, ProjectPharm s.r.o., LCR Leading Clinical Research s.r.o., X-act Cologne Clinical Research GmbH
Responsible party
Sponsor
First posted
Jun 18, 2012
Start date
May 2013
Primary completion
Sep 18, 2018
Completion
Oct 30, 2018
Last update
Dec 21, 2018

Study contacts

Martin Canis, MD PhD
principal investigator · Department for Otorhinolaryngology, LM University Munich

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2018. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Ancrod

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