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CompletedNCT03658616Updated Apr 28, 2023

Assessment of Efficacy and Safety of Topical Administration of 1% Glycopyrronium Bromide (GPB) in Patients With Primary Axillary Hyperhidrosis and the Assessment of Long-term Efficacy and Safety of Topical Administration of 1% GPB Cream in Patients With Primary Axillary Hyperhidrosis.

A Phase 3 interventional study of WO3970 and Placebo (WO3988) in Primary Axillary Hyperhidrosis, sponsored by Dr. August Wolff GmbH & Co. KG Arzneimittel. Completed at 1 site in Germany. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-04-28.

Sponsored by Dr. August Wolff GmbH & Co. KG Arzneimittel · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
518
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The aim of this study is to investigate the efficacy and safety of 1% GPB cream after 4 weeks of treatment compared with placebo with a sufficient number of patients to obtain statistically significant results, and to assess the long-term safety of 1% GPB cream.

02

Conditions studied

  • Primary Axillary Hyperhidrosis

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Keywords

  • Excessive sweating
03

In context

Hyperhidrosis

111 studies on the registry are indexed under Hyperhidrosis; 10 are open to participants now.

This study's enrollment of 518 is above the median of 50 across 99 interventional studies indexed under Hyperhidrosis.

Browse Hyperhidrosis studies →

Lead sponsor

Dr. August Wolff GmbH & Co. KG Arzneimittel is the lead sponsor of 18 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 65 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

  • Diagnosis of severe primary axillary hyperhidrosis with a HDSS score of 3 or 4
  • At least 50 mg of sweat production in each axilla measured gravimetrically at room temperature and at a humidity consistent with the normal climate in that area over a period of 5 minutes (patients should have acclimatized to that room for at least 30 minutes)
  • Men and women aged 18 to 65 years at the time of with a of 18-32 kg/m2
  • Able to comply with protocol requirements, including overnight stays, blood sample collections as defined in the protocol subjects
  • Willing and able to provide written informed consent

Exclusion criteria

Exclusion Criteria:

  • Known allergy to any of the components in the product.
  • against glycopyrrolate
  • Secondary hyperhidrosis, for example, hyperhidrosis that is secondary to other underlying diseases including hyperthyroidism, lymphoma and malaria, climacteric hyperhidrosis.
  • Previous surgical treatment of hyperhidrosis including sympathectomy, surgical debulking of the sweat glands, subcutaneous tissue curettage and ultrasonic surgery.
  • Botulinum toxin treatment in the prior 4 months.
  • Angle closure glaucoma or its precipitation (narrow angle).
  • Mycotic, other skin infections and other dermal disorder including infection at anticipated application sites in either axilla.
  • Any condition or situation that, in the investigator's or sub-investigator's opinion, may interfere with the patient's participation in the study;
Terms in these criteria, in plain language(4)

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.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
518 participants (actual)

Study arms

  • Experimental
    WO3970

    Formulation containing WO3979 for topical application

    Drug: WO3970

  • Placebo comparator
    Placebo of WO3988

    Formulation containing Placebo of WO3988 for topical application

    Drug: Placebo (WO3988)

Interventions

  • DrugWO3970

    Application of cream to each axilla

  • DrugPlacebo (WO3988)

    Application of cream to each axilla

06

What researchers measure

Primary outcomes

  1. Dose-confirming part: Absolute change in sweat production assessed by gravimetric measurement (GM) from Baseline (Day 1a) to Day 29 in the 1% GPB group compared with the placebo group.

    Time frame: Baseline (Day 1a), Day 29

  2. Long-term part (only for newly recruited patients): Absolute change in sweat production assessed by GM from Baseline (Day 1b) to Week 12

    Time frame: Baseline (Day 1b), Week 12

Secondary outcomes

  1. Dose-confirming part: Percentage of responders assessed by the Hyperhidrosis Disease Severity Scale (HDSS) (≥2-point improvement from Baseline) on Day 29 in the 1% GPB group compared with the placebo group

    The Hyperhidrosis Disease Severity Scale (HDSS) is a disease-specific, quick, and easily-understood diagnostic tool that provides a qualitative measure of the severity of the patient's condition based on how it affects daily activities. HDSS is a four item scale. A score of 1 or 2 indicates mild or moderate Hyperhidrosis. A score of 3 or 4 indicates severe Hyperhidrosis.

    Time frame: Day 29

  2. Dose-confirming part: Percentage of responders assessed by GM at Day 29 (defined by sweat reduction of ≥50%, ≥75%, and ≥90% compared with Baseline) in the 1% GPB group compared with the placebo group

    Time frame: Day 29

  3. Long-term part: Percentage of responders assessed by the HDSS (≥2-point improvement from Baseline) at Week 12

    Time frame: Week 12

  4. Long-term part: Percentage of responders assessed by GM at Week 4 and Week 12 (defined by sweat reduction of ≥50%, ≥75%, and ≥90% compared with Baseline

    Time frame: Week 4, Week 12

07

Study locations

1 site
  • Dr. Harald Brüning
    Kiel, 24148, Germany
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03658616
Lead sponsor
Dr. August Wolff GmbH & Co. KG Arzneimittel
Responsible party
Sponsor
First posted
Sep 5, 2018
Start date
Sep 18, 2018
Primary completion
Nov 2, 2021
Completion
Feb 2, 2022
Last update
Apr 28, 2023

Study contacts

Prof. Rolf-Markus Szeimies, MD
principal investigator · Klinikum Vest GmbH, Knappschaftskrankenhaus Recklinghausen

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: WO3970

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