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Taking people in SwedenPhase 2

L-menthol for Breathlessness and Exercise Ability in People With Asthma

Tests L-menthol against placebo for breathlessness in adults with asthma.

Plain-language title generated from the registry record
Registry title: Efficacy of L-menthol on Breathlessness in Asthma

Key facts

Where
Karlskrona and Lund, SwedenSee the 2 sites
Phase
Phase 2

Where in Sweden

  • Blekinge Institute of TechnologyKarlskrona, SwedenNot yet recruiting
  • Lund University hospital and Region SkåneLund, SwedenTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Region Skane
Trial code
NCT07500974
Record updated
19 August 2026
Original description
The purpose of this study is to assess the effect of L-menthol on breathlessness and exercise capacity in patients with Asthma.Read full original descriptionShow less

Effect of L-menthol on Breathlessness and Exercise Capacity in Asthma: a Randomized Crossover Trial

The purpose of this study is to assess the effect of L-menthol on breathlessness and exercise capacity in patients with Asthma.

Inclusion: the subject has given written consent to participate in the study; physician diagnosis of Asthma according to international guidelines; mMRC (modified Medical Research Council) score of 1 or above; age 18 years or older; able to cycle; able to understand and talk Swedish to participate in the study procedures, as judged by the Investigators.

Exclusion: treatment with supplementary oxygen at rest or during exercise; medical conditions including congestive heart failure, acute coronary artery disease, neuromuscular diseases, severe psychiatric illness, and olfaction disorder; resting peripheral oxygen saturation (SpO2) < 92%; hospitalization or clinical instability during the last four weeks; contraindication to exercise testing in accordance with clinical practice guidelines; expected survival shorter than six months as judged by the Investigator.

ClinicalTrials.gov NCT07500974