ClinicalTrials.gg
CompletedNCT05057117Updated May 26, 2023

Longevity of Microwave Thermolysis and Botulinum Toxin A for Treatment of Axillary Hyperhidrosis

A Phase 4 interventional study of Microwave thermolysis and Botulinum toxin A in Hyperhidrosis Primary Focal Axilla, sponsored by Merete Haedersdal. Completed at 1 site in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-05-26.

Sponsored by Merete Haedersdal · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This trial aims is to assess and compare treatment effect of microwave thermolysis and botulinum toxin A for axillary hyperhidrosis with focus on longevity. The investigators also aim to assess patient satisfaction and adverse reactions in relation to treatment.

02

Conditions studied

  • Hyperhidrosis Primary Focal Axilla

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Keywords

  • Axillary hyperhidrosis
  • Microwave thermolysis
  • Botulinum toxin A
03

In context

Hyperhidrosis

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

This study's enrollment of 30 is below the median of 50 across 99 interventional studies indexed under Hyperhidrosis.

Browse Hyperhidrosis studies →

Lead sponsor

Merete Haedersdal is the lead sponsor of 13 studies on the registry; 2 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

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

  1. Subject has provided written
  2. Subject is 18 years of age or older
  3. A unilateral HDSS score of 3 or 4 for each axilla
  4. A gravimetric measurement of at least 50 mg/5 min for women and 100 mg/5 min for men in at least one axilla. The contralateral axilla should not be below 40 mg (women) and 80 mg (men).
  5. Women of must be confirmed not pregnant by a negative u-HCG prior to study treatment and must use a safe method at baseline.

Exclusion criteria

Exclusion Criteria:

  1. Subjects with generalized hyperhidrosis
  2. Medical condition or medications that may alter perspiration (e.g. metabolic, immunological or infectious diseases, antidepressants, opioids, adrenergic/cholinergic drugs)
  3. Daily use of systemic or topical antibiotics and/or in axillae at the time of inclusion
  4. Topical treatments for axillary hyperhidrosis (anti-perspirants are allowed except for visit days)
  5. Abnormal skin (e.g. rash, infection, dermatitis) in the axilla at the time of inclusion
  6. Breast tissue in the axillae
  7. Treatment with Isotretinoin within the past 6 months
  8. Axillary laser or IPL treatment within the past 6 months
  9. Botulinum toxin-injections in the axillae within the past 12 months prior to baseline
  10. Known allergies to botulinum toxin, iodine, lidocaine or adrenaline
  11. Prior axillary surgery
  12. Limited motion in the shoulder joint or neurologic deficit in upper limb
  13. History of diseases resulting in muscle weakness (ALS, Lou Gehrig's), dysphagia (Myasthenia Gravis or Lambert Eaton Syndrome) or respiratory compromise
  14. Axillary lymph node enlargement or -removal or lymphedema in either upper limb
  15. History of hidradenitis suppurativa or history of reoccurring infections/abscesses
  16. History of breast cancer
  17. Electronic device implant
  18. If female; lactating, pregnant or planning on becoming pregnant during the study
  19. Non-eligibility at the discretion of the investigator (e.g. non-compliance, unavailability or other reasons the subject is not believed to be able to comply with the clinical trial protocol)
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

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

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 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (actual)

Study arms

  • Active comparator
    Botulinum toxin A

    One treatment with standard dosage (50-100 units) of botulinum toxin A in one axilla

    Drug: Botulinum toxin A

  • Active comparator
    Microwave thermolysis

    One standard treatment (energy level 5) with microwave thermolysis in one axilla

    Device: Microwave thermolysis

Interventions

  • DeviceMicrowave thermolysis

    Baseline treatment with microwave thermolysis in one axilla and botulinum toxin A in the contralateral axilla, as allocated by randomization

    Also known as: miraDry

  • Baseline treatment with microwave thermolysis in one axilla and botulinum toxin A in the contralateral axilla, as allocated by randomization

    Also known as: Botox

06

What researchers measure

Primary outcomes

  1. Subjective change in axillary sweat

    Unilateral sweat change from baseline to 6 months follow-up assessed by Hyperhidrosis Disease Severity Scale

    Time frame: Baseline - 6 months

Secondary outcomes

  1. Objective change in axillary sweat

    Unilateral sweat change from baseline to 6 months follow-up assessed by gravimetric test

    Time frame: Baseline - 6 months

  2. Patient Satisfaction

    Unilateral patient satisfaction 6 and 12 months after treatments assessed on a 3-point Likert Scale (unsatisfied - neutral - satisfied)

    Time frame: Baseline - 6 months - 12 months

  3. Adverse reactions

    Unilateral evaluation of adverse reactions after treatments

    Time frame: Baseline - 12 months

07

Study locations

1 site
  • Department of Dermatology, Bispebjerg Hospital
    Copenhagen, 2400, Denmark
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2021 to primary completion in Oct 2022, 12 months.

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

Registered
Sep 7, 2021
First posted
Sep 27, 2021
StartActual
Sep 27, 2021
Primary completionActual
Oct 17, 2022
CompletionActual
Apr 24, 2023
Last update
May 26, 2023
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 May 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05057117
Lead sponsor
Merete Haedersdal
Responsible party
Merete Haedersdal (Consultant in Dermatology, Clinical Professor, Bispebjerg Hospital) — Sponsor-investigator
First posted
Sep 27, 2021
Start date
Sep 27, 2021
Primary completion
Oct 17, 2022
Completion
Apr 24, 2023
Last update
May 26, 2023

Study contacts

Merete Haedersdal, MD PhD DMSc
principal investigator · Bispebjerg Hospital

Oversight

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

Not currently enrolling

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

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Studies of the drug tested here: Botulinum toxin type A

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