Clinical Trial Results:
Efficacy and safety of Euminz® (10% ethanolic solution of peppermint oil for topical use) compared to placebo in patients with episodic tension-type headache (ETTH)
Summary
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EudraCT number |
2011-004777-89 |
Trial protocol |
DE |
Global end of trial date |
15 Sep 2015
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Results information
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Results version number |
v1(current) |
This version publication date |
22 May 2025
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First version publication date |
22 May 2025
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
CAS/B/016611
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
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WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Cassella-med GmbH & Co. KG
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Sponsor organisation address |
Gereonsmuehlengasse 1, Cologne, Germany, 50670
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Public contact |
Clinical Operations, Cassella-med GmbH & Co.KG, clinical.operations@klosterfrau.de
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Scientific contact |
Clinical Operations, Cassella-med GmbH & Co.KG, clinical.operations@klosterfrau.de
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
27 Sep 2016
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
15 Sep 2015
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Global end of trial reached? |
Yes
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Global end of trial date |
15 Sep 2015
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The main objective of this prospective, multi-centre, double-blind, placebo-controlled, phase IV clinical trial is to demonstrate the efficacy of Euminz to reduce the intensity of headaches symptoms after topical use during episodic headache attack experienced by patients with episodic tension-type headache.
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Protection of trial subjects |
Each subject was fully informed of all aspects of the study and provided informed consent prior to start of any study procedures. Subjects could withdraw from treatment at any time and for any reason. No specific additional measures were required to minimize distress given the nature of study.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
15 Feb 2013
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Germany: 209
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Worldwide total number of subjects |
209
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EEA total number of subjects |
209
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
190
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From 65 to 84 years |
19
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85 years and over |
0
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Recruitment
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Recruitment details |
Adult subjects were recruited in Clinical Complementary and Integrative Medicine Charité University and Immanuel Hospital Berlin, Germany from 15th February 2013 until 15th September 2015. | |||||||||||||||||||||||||||
Pre-assignment
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Screening details |
Subjects were eligible for inclusion, if the main criteria were met: - signed and dated Informed Consent; - history of ETTH for at least one year and number of days per month with ETTH ≥2 | |||||||||||||||||||||||||||
Period 1
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Period 1 title |
overall trial (overall period)
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Is this the baseline period? |
Yes | |||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | |||||||||||||||||||||||||||
Roles blinded |
Subject, Investigator, Monitor, Data analyst | |||||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Euminz | |||||||||||||||||||||||||||
Arm description |
- | |||||||||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||||||||
Investigational medicinal product name |
peppermint oil
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Cutaneous liquid
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Routes of administration |
Cutaneous use
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Dosage and administration details |
At onset of a headache episode, when the intensity was assessed at least as moderate (3 on VPRS), the patient had to apply the IMP solution as broad bands on the temples and forehead to a skin area of about 100 to 140 cm2. In case of pericranial tenderness and neck pain the patient had to apply the IMP solution also on the neck. Application was to be repeated after 15 and 30 minutes, and if necessary after 45 and 60 minutes. Thus, 3 to 5 applications during one headache episode were allowed. Before each application, changes were to be recorded in the headache documentation form.
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Arm title
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Placebo | |||||||||||||||||||||||||||
Arm description |
- | |||||||||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||||||||
Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Cutaneous solution
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Routes of administration |
Cutaneous use
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Dosage and administration details |
At onset of a headache episode, when the intensity was assessed at least as moderate (3 on VPRS), the patient had to apply the IMP solution as broad bands on the temples and forehead to a skin area of about 100 to 140 cm2. In case of pericranial tenderness and neck pain the patient had to apply the IMP solution also on the neck. Application was to be repeated after 15 and 30 minutes, and if necessary after 45 and 60 minutes. Thus, 3 to 5 applications during one headache episode were allowed. Before each application, changes were to be recorded in the headache documentation form.
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Baseline characteristics reporting groups
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Reporting group title |
Euminz
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Reporting group description |
- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo
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Reporting group description |
- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Subject analysis sets
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Subject analysis set title |
ITT
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Subject analysis set type |
Intention-to-treat | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
The ITT set consists of all patients who were randomized and applied at least one dose of study medication.
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Subject analysis set title |
FAS
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Subject analysis set type |
Full analysis | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
The FAS consists of all patients in the ITT set with at least one evaluable headache episode.
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End points reporting groups
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Reporting group title |
Euminz
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Reporting group description |
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Reporting group title |
Placebo
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Reporting group description |
- | ||
Subject analysis set title |
ITT
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Subject analysis set type |
Intention-to-treat | ||
Subject analysis set description |
The ITT set consists of all patients who were randomized and applied at least one dose of study medication.
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Subject analysis set title |
FAS
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Subject analysis set type |
Full analysis | ||
Subject analysis set description |
The FAS consists of all patients in the ITT set with at least one evaluable headache episode.
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End point title |
VPRS responder rate for the first documented HE | |||||||||
End point description |
VPRS responder rate for the first documented HE. A responder was defined as a patient whose baseline value (VPRS0) was ≥3 and who reached a VPRS-value after treatment (VPRS1 at 120 min or LOCF) of ≤1. If the first documented HE was terminated due to inefficacy, the patient was to be rated as non-responder even if another HE was documented.
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End point type |
Primary
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End point timeframe |
First documented HE between V1 and V2
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Notes [1] - FAS [2] - FAS |
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Statistical analysis title |
primary efficacy analysis hierarchical statistical | |||||||||
Statistical analysis description |
This hypothesis was to be tested using the non-parametric Fisher’s exact test at a 1-sided significance level of 2.5%. Confirmatory testing of the second hypothesis referring to VAS assessment of pain intensity was to be performed only if the null hypothesis of the first analysis could be rejected. Hence, no adjustment of significance levels was required.
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Comparison groups |
Euminz v Placebo
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Number of subjects included in analysis |
189
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority [3] | |||||||||
P-value |
≤ 0.025 | |||||||||
Method |
Fisher exact | |||||||||
Confidence interval |
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Notes [3] - The latter hypothesis was to be tested using the non-parametric Mann-Whitney U Test (rank-sum test) at a 2-sided significance level of 5%. In case the first null hypothesis (H1-0) could not be rejected, i.e., statistical significance of the results could not be demonstrated, the second test was to be performed exploratory only. |
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End point title |
Assessment of Pain by VAS SPID at 120 min | ||||||||||||
End point description |
The second primary variable was the VAS sum of pain intensity differences (VAS SPID) at 120 min after start of treatment of the patient’s first eHE recorded in the HDF. Pain intensity was assessed using a visual analogue scale (VAS) and SPID was calculated. SPID is the weighted sum of pain intensity differences (PID: difference of pain intensity recorded at baseline [t0] and pain intensity at assessment time [ti]). Higher VAS SPID values indicate higher differences in pain intensity over time, i.e., in the present setting a more pronounced reduction of pain.
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End point type |
Primary
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End point timeframe |
120min after start of teratment of the patient's first eHE.
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Notes [4] - FAS [5] - FAS |
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Statistical analysis title |
second primary confirmatory endpoint | ||||||||||||
Comparison groups |
Placebo v Euminz
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Number of subjects included in analysis |
189
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Analysis specification |
Pre-specified
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Analysis type |
equivalence | ||||||||||||
P-value |
≤ 0.05 | ||||||||||||
Method |
Wilcoxon (Mann-Whitney) | ||||||||||||
Confidence interval |
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End point title |
Pain-free Rate at 120 min: first eHE by Number of Study Drug Applications | |||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Study drug was to be applied 3 to 5 times during one eHE according to protocol.
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Notes [6] - FAS [7] - FAS |
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No statistical analyses for this end point |
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End point title |
VPRS Sum of Pain Intensity Differences | |||||||||||||||||||||
End point description |
Differences in verbal pain rating between baseline and assessment times have been calculated and summed up to obtain VPRS SPID values for all eHEs and, separately, for the patients’ first eHE. Furthermore, SPIDs have been assessed as means to give mSPID values defined as arithmetic mean of the SPIDs calculated per eHE in an individual patient.
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End point type |
Secondary
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End point timeframe |
V1-V3
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Notes [8] - FAS [9] - FAS |
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Visit 1 up until 1 week after Visit 3
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
17.1
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Reporting groups
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Reporting group title |
Intent-to-treat
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Reporting group description |
The ITT set consists of all patients who were randomized and applied at least one dose of study medication. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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24 Mar 2014 |
Amendment 1, dated 24 March 2014 concerned the change in the placebo manufacturer (Klosterfrau Berlin GmbH instead of Lichtenheldt GmbH) and a change in data management responsibility which was transferred to acromion GmbH, Frechen. Furthermore, responsibility for statistical analysis was transferred to Norman Bitterlich, PhD, Medizin und Services GmbH, Chemnitz. |
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09 Sep 2015 |
Amendment 2, dated 09 September 2015 concerned change of responsibility for statistical analyses which was transferred entirely to acromion GmbH, Frechen. |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |