Clinical trial • Phase III • Psychiatry
LAVENDER OIL for Major depressive disorder (mild to moderate) | Major depression
Phase III trial of LAVENDER OIL for Major depressive disorder (mild to moderate) | Major depression.
Overview
- Trial Therapeutic Area
- Psychiatry
- Trial Disease
- Major depressive disorder (mild to moderate) | Major depression
- Trial Stage
- Phase III
- Drug Modality
- Other
Key dates
- Initial CTIS Submission Date
- 07-07-2025
- First CTIS Authorization Date
- 06-10-2025
Trial design
Randomised, silexan 80 mg once daily (oral) versus placebo (matched placebo).-controlled Phase III trial in Germany, Austria.
- Randomised
- Yes
- Comparator
- Silexan 80 mg once daily (oral) versus placebo (matched placebo).
- Target Sample Size
- 500
- Trial Duration For Participant
- 56
Eligibility
Recruits 500 Vulnerable population selected: participants have major depressive disorder (mental disorder). Written informed consent required from participant. Participants must be able to read, understand and complete questionnaires; those unable to do so are excluded. No procedures for parental consent or assent (trial enrols adults ≥18 years). Patient information / ICF available in English and German (patient-facing documents listed)..
- Pregnancy Exclusion
- Positive pregnancy test during Visit 1. Pregnancy, planning of pregnancy or lactation. Persons capable of childbearing if not using highly effective contraception; these include: • Oral, intravaginal, transdermal combined (oestrogen and progestogen containing) hormonal contraception • Oral, injectable and implantable progestogen-only hormonal contraception • Intrauterine device • Intrauterine hormone-releasing system • Bilateral tubal occlusion • Vasectomised partner • Sexual abstinence (referring to heterosexual relationships)
- Vulnerable Population
- Vulnerable population selected: participants have major depressive disorder (mental disorder). Written informed consent required from participant. Participants must be able to read, understand and complete questionnaires; those unable to do so are excluded. No procedures for parental consent or assent (trial enrols adults ≥18 years). Patient information / ICF available in English and German (patient-facing documents listed).
Inclusion criteria
- {"criterion_text":"- Age of at least 18 years.\n- Diagnosis of a major depressive episode according to ICD-10 (single episode: F32.0, 32.1, recurrent episode: F33.0, 33.1) of mild to moderate severity with a duration of at least 2 weeks but not longer than one year.\n- MADRS total score for the inclusion in the run-in and into the active treatment phase: 17–30.\n- Outpatient treatment by a general or specialised physician.\n- Body weight: Body Mass Index (BMI) between 18 and 35 kg/m2.\n- Written informed consent in accordance with the legal requirement.\n- Readiness and ability on the part of the participant to comply with the physician’s instructions and to fill in the self-assessment scales."}
Exclusion criteria
- {"criterion_text":"- Participation in a further clinical trial at the same time or in the last 12 weeks before screening.\n- Gastrointestinal disorders with uncertain absorption of orally administered drugs (e.g. partial or total gastrectomy, enterectomy, inflammatory bowel disease, celiac disease, symptomatic lactose intolerance, other disorders associated with chronic diarrhoea).\n- Unable to read, understand and/or complete questionnaires.\n- Diagnosis of MDD of severe severity as defined by ICD-10 (single episode: F32.2, recurrent episode: F33.2) or rating of the MADRS total score > 30 at screening or baseline visit.\n- History or suspicion of unreliability, poor cooperation or non-compliance with medical treatment.\n- Any clinically important psychiatric or neurological diagnoses according to ICD-10, other than trial indication, within 6 months before the trial such as: • Schizophrenia (F20.-), • Acute anxiety disorder (F41.-) • Episodes of depression with any characteristics of a psychotic nature (F32.3, F33.3), depressive disorders not defined as inclusion criteria (F34.1, F32.9), bipolar disorder (F31.-), cyclothymia (F34.0), mania (F30.-), • Organic, including symptomatic, mental disorders (F00-F09), • Post-traumatic stress disorder (F43.10), •\tEating disorders (F50.-).\n- History or evidence of alcohol and/or substance abuse or dependence, particularly of sedatives, hypnotics and anxiolytics. (F10-F19).\n- Risk of suicide, or previous suicide attempt or clear display of auto-aggressive behaviour as defined (but not limited to) MADRS Item 10 “suicidal thoughts” score 2.\n- Lack of response to any adequate antidepressant therapy in the present episode of depression (adequate means 150 mg amitriptyline-equivalents per day or SSRI treatment during at least 6 weeks). Patients who are already well adjusted to an antidepressant therapy in the present episode may not be enrolled into this trial.\n- Any of the following treatments within 30 days before baseline visit: •\tAntidepressants •\tDepot neuroleptics •\tMonoamine oxidase (MAO) inhibitors •Pimozide •Benzodiazepines •Other psychotropic drugs •Intravenous methylene blue •Linezolid.\n- Unacceptability to discontinue or likelihood to need medication during the trial that is prohibited as concomitant treatment (see section 10.2). The following medication is not allowed during the trial: • Any psychotropic drugs including o benzodiazepines, tranquilizer, antidepressants, anxiolytics, antiepileptics, MAO inhibitors, pimozide, lamotrigine, linezolid, intravenous methylene blue o non-benzodiazepines (exception: ≤ 10 mg zolpidem/day for not longer than 10 days during the trial) o neuroleptics (exception: ≤ 75 mg melperone/day for not longer than 10 days during the trial). However, NO exception for zolpidem and for melperone is allowed within 5 days prior to any trial visit. • Long-term prophylactic treatment (e.g. lithium, carbamazepine) • Central-acting antihypertensive medication (guanethidine, guanoxan, clonidin, prazosine, α-methyldopa, reserpine) • Digoxin • Xanthine derivatives such as Theophylline • Antiparkinson medication • Phytopharmaceuticals with anxiolytic properties (e.g. hypericum extract, valerian extract) • Muscle relaxants • Analgesics of opiate type • Anaesthetics • Barbiturates • Nootropics • Coumarin derivates • Antibiotics.\n- History of hypersensitivity to lavender preparations and/or known allergies to the IMP, placebo or excipients.\n- Non-medicinal psychiatric treatment during the last 2 weeks prior to baseline visit and during the course of the trial (e.g. standardised and digital psychotherapy, sleep withdrawal, phototherapy, electroconvulsive therapy, digital health applications [DiGAs]).\n- Any unstable acute medical disorder or clinically relevant hepatic, renal, cardiovascular, respiratory, cerebrovascular, metabolic disorder or progressive diseases as cancer, haematologic diseases (including haemophilia, Christmas disease, von Willebrand’s disease, past medical history of bleeding gastric or duodenal ulcers or other significant bleeding disorders) or thyroid insufficiency (exception: non-insulin dependent diabetes mellitus, thyroid and anterior pituitary insufficiency on stable treatment), epilepsy or a history of seizure disorder or treatment with anticonvulsants for epilepsy or seizures, Parkinson’s disease.\n- Any somatic disease that necessitates regular treatment with systemic steroids.\n- Clinically significant abnormality of ECG and/or laboratory value(s) assessed at Screening Visit.\n- Any abnormal baseline finding considered by the investigator to be indicative of conditions that might affect trial results.\n- Positive pregnancy test during Visit 1.\n- Pregnancy, planning of pregnancy or lactation.\n- Persons capable of childbearing if not using highly effective contraception; these include: • Oral, intravaginal, transdermal combined (oestrogen and progestogen containing) hormonal contraception • Oral, injectable and implantable progestogen-only hormonal contraception • Intrauterine device • Intrauterine hormone-releasing system • Bilateral tubal occlusion • Vasectomised partner • Sexual abstinence (referring to heterosexual relationships)"}
Endpoints
Primary endpoints
- {"endpoint_text":"- The change in MADRS total score between Baseline and Week 8.","definition_or_measurement_approach":"Change in Montgomery-Åsberg Depression Rating Scale (MADRS) total score from Baseline to Week 8; MADRS total score used as primary efficacy measure."}
Secondary endpoints
- {"endpoint_text":"- Efficacy endpoint: • Changes from Baseline in Clinical Global Impressions (CGI) (Item 1), Patient Health Questionnaire-9(PHQ-9) total score, Sheehan Disability Scale (SDS) total score at Week 8","definition_or_measurement_approach":"Changes from Baseline to Week 8 in CGI Item 1, PHQ-9 total score, and SDS total score."}
- {"endpoint_text":"- Efficacy endpoint: • CGI (Item 2) at Week 8","definition_or_measurement_approach":"Clinical Global Impressions (CGI) Item 2 assessed at Week 8."}
- {"endpoint_text":"- Efficacy endpoint: • At least 50% reduction of MADRS total score between Baseline and Week 8 (responder)","definition_or_measurement_approach":"Responder defined as ≥50% reduction in MADRS total score from Baseline to Week 8."}
- {"endpoint_text":"- Efficacy endpoint: • MADRS total score < 10 at Week 8 (remitter).","definition_or_measurement_approach":"Remission defined as MADRS total score < 10 at Week 8."}
- {"endpoint_text":"- Safety endpoint:• Frequency of participants with at least one Adverse Event (AE),Adverse Drug Reaction (ADR), serious AE; number, type, severity and seriousness of AEs, and their relationship to the Investigational Medicinal Product (IMP); frequency of participants with AEs leading to withdrawal","definition_or_measurement_approach":"Safety assessed by recording frequency, type, severity and relatedness of AEs/ADRs/serious AEs and AEs leading to withdrawal."}
- {"endpoint_text":"- Safety endpoint:• Evaluation of safety assessments (physical examination, vital signs, 12-lead electrocardiography (ECG), laboratory evaluation, concomitant medication, non-medicinal psychiatric treatment)","definition_or_measurement_approach":"Safety assessments include physical exam, vital signs, 12-lead ECG, laboratory tests, concomitant medication and non-medicinal psychiatric treatments."}
- {"endpoint_text":"- Safety endpoint:• Risk of suicide","definition_or_measurement_approach":"Assessment of suicide risk (e.g., MADRS Item 10 and other safety assessments)."}
Recruitment
- Digital Remote Recruitment
- Yes
- Planned Sample Size
- 500
- Recruitment Window Months
- 20
- Consent Approach
- Written informed consent required from each participant (participants must be ≥18 years). Subject information and informed consent forms (L1_SIS and ICF Main and Pregnant Partner) available for publication; patient-facing documents present in English and German. Participants must be able to read, understand and complete questionnaires as a condition of participation.
Methods
- Flyers (pharmacies) — recruitment materials titled 'K2_Recruitment material flyer pharmacies' and similar (documents associated with Part II entries).
- Online advertisement — documents include 'K2_Recruitment material online advertisement Velocity sites' indicating online ads on Velocity sites.
- Online and print media recruitment material for Sitework sites — document 'K2_Recruitment material online and printmedia recruitment material Sitework sites'.
- Prescreening toolkit questions for Pratia sites — document 'K2_Recruitment material prescreening toolkit questions Pratia sites'.
- Advertisements for Pratia and FutureMeds/Siteworks sites — multiple 'K2_Recruitment material advertisement' documents for specific site operators.
Geography
- Total Number Of Sites
- 36
- Total Number Of Participants
- 500
Germany
- Earliest CTIS Part Ii Submission Date
- 04-09-2025
- Latest Decision Or Authorization Date
- 27-02-2026
- Processing Time Days
- 176
- Number Of Sites
- 33
- Number Of Participants
- 450
Sites
- Site Name
- Siteworks GmbH
- Contact Person Name
- Julia Chevts
- Contact Person Email
- info@siteworks-studien.de
- Site Name
- Siteworks GmbH
- Contact Person Name
- Niels-Christian Höllger
- Contact Person Email
- heidelberg@siteworks-studien.de
- Site Name
- Klinische Forschung Schwerin GmbH
- Contact Person Name
- Christine Paschen
- Contact Person Email
- studienteilnahme.schwerin@pratia.com
- Site Name
- Gemeinschaftspraxis PD Dr. med. habil. Holger Kittner & Dr. Hartig
- Contact Person Name
- Holger Kittner
- Contact Person Email
- Praxis-Kittner-Hartig@gmx.de
- Site Name
- MVZ Medic-Center Nürnberg Studienzentrum
- Contact Person Name
- Norbert Schöll
- Contact Person Email
- info@mediccenter.de
- Site Name
- Studienzentrum Dr. med. Markus Faghih
- Contact Person Name
- Markus Faghih
- Contact Person Email
- info@bocholder-hausaerzte.de
- Site Name
- Studienzentrum Mainz Mitte
- Contact Person Name
- Stefan Regner
- Contact Person Email
- info@hausarzt-in-mainz.de
- Site Name
- Medizinisches Versorgungszentrum (MVZ) Dachau
- Department Name
- Studienabteilung
- Contact Person Name
- Karl Wilhelm
- Contact Person Email
- kontakt@dachau-med.de
- Site Name
- Klinische Forschung Hamburg GmbH
- Contact Person Name
- Christian Deckert
- Contact Person Email
- studienteilnahme.hamburg@pratia.com
- Site Name
- Neuromed Campus
- Contact Person Name
- Gereon Nelles
- Contact Person Email
- praxis@neuromed-campus.de
- Site Name
- Ambenet GmbH Das Ambulante Behandlungsnetz
- Contact Person Name
- Hans-Detlev Stahl
- Contact Person Email
- info@ambenet.de
- Site Name
- Velocity Clinical Research Germany GmbH
- Contact Person Name
- Mauricio Sendeski
- Contact Person Email
- privacy@VelocityClinical.com
- Site Name
- Velocity Clinical Research Germany GmbH
- Contact Person Name
- Kulkarni Sameer
- Contact Person Email
- privacy@VelocityClinical.com
- Site Name
- Gemeinschaftspraxis Dres. Grosskopf
- Contact Person Name
- Josef Großkopf
- Contact Person Email
- info@drs-grosskopf.de
- Site Name
- Emovis GmbH
- Contact Person Name
- Luci Magimaiseelan
- Contact Person Email
- info.de@futuremeds.com
- Site Name
- Klinische Forschung Hannover-Mitte GmbH
- Contact Person Name
- Jan Wagner
- Contact Person Email
- studienteilnahme.hannover@pratia.com
- Site Name
- Praxis Schriek - Gesund im Kreuzviertel
- Contact Person Name
- Carsten Schriek
- Contact Person Email
- praxis@dr-schriek.de
- Site Name
- Siteworks GmbH
- Contact Person Name
- Annemone Köchel
- Contact Person Email
- info@siteworks-studien.de
- Site Name
- Hausarztzentrum Butendorf
- Contact Person Name
- Stefan Schaub
- Contact Person Email
- info@hausarztzentrum.de
- Site Name
- NeuroCentrum am Kreiskrankenhaus
- Contact Person Name
- Monika Köchling
- Contact Person Email
- post@neuro-centrum.net
- Site Name
- Kai Gastl
- Contact Person Name
- Kai Gastl
- Contact Person Email
- info@praxis-gastl.de
- Site Name
- Pharmakologisches Studienzentrum Chemnitz GmbH
- Contact Person Name
- Ralf Bodenschatz
- Contact Person Email
- info@studienzentrum-chemnitz.de
- Site Name
- NeuroPoint Gesellschaft fur vorbeugende Gesundheitspflege GmbH
- Contact Person Name
- Daniela Rau
- Contact Person Email
- org@neuropoint.de
- Site Name
- Emovis GmbH
- Contact Person Name
- Reinhard Stöhring
- Contact Person Email
- info.de@futuremeds.com
- Site Name
- Zentrum fuer klinische Forschung Dr. I. Schoell GmbH
- Contact Person Name
- Elvira Steidl
- Contact Person Email
- info@forschung-badhomburg.de
- Site Name
- Studienzentrum FMZ Radowsky
- Contact Person Name
- Frank Radowsky
- Contact Person Email
- info@privatpraxis-leipzig.de
- Site Name
- Siteworks GmbH
- Contact Person Name
- Ulrike Lengler
- Contact Person Email
- hannover@siteworks-studien.de
- Site Name
- Kallmann Neurologie Neurologische Praxis
- Department Name
- Neurologische Praxis
- Contact Person Name
- Boris Kallmann
- Contact Person Email
- post@neurologie-bamberg.com
- Site Name
- Velocity Clinical Research Germany GmbH
- Contact Person Name
- Anastasia Kelidou
- Contact Person Email
- privacy@VelocityClinical.com
- Site Name
- Universitaetsklinikum Jena KöR
- Department Name
- Department of Psychiatry and Psychotherapy
- Contact Person Name
- Martin Walter
- Contact Person Email
- psychiatrie@med.uni-jena.de
- Site Name
- Velocity Clinical Research Germany GmbH
- Contact Person Name
- Thomas Müller
- Contact Person Email
- privacy@VelocityClinical.com
- Site Name
- medicoKIT GmbH
- Contact Person Name
- Thorsten Krause
- Contact Person Email
- buero@medicokit-goch.de
- Site Name
- Klinische Forschung Karlsruhe GmbH
- Contact Person Name
- Alla Reimer
- Contact Person Email
- studienteilnahme.karlsruhe@pratia.com
- Site Name
- Analyze & Realize GmbH
- Contact Person Name
- Liana Vismane
- Contact Person Email
- info@a-r.com
- Site Name
- Gemeinschaftpraxis Dres. Med Blersch/Redelstein
- Contact Person Name
- Wendelin Blersch
- Contact Person Email
- praxis@neuroamdom.de
- Site Name
- Klinische Forschung Dresden GmbH
- Contact Person Name
- Petra Peschel
- Contact Person Email
- studienteilnahme.dresden@pratia.com
- Site Name
- Klinische Forschung Berlin-Mitte GmbH
- Contact Person Name
- Frank Zollmann
- Contact Person Email
- studienteilnahme.berlin@pratia.com
- Site Name
- Velocity Clinical Research Germany GmbH
- Contact Person Name
- Tanja Finsterbusch
- Contact Person Email
- privacy@velocityclinical.com
Austria
- Earliest CTIS Part Ii Submission Date
- 04-09-2025
- Latest Decision Or Authorization Date
- 19-04-2026
- Processing Time Days
- 227
- Number Of Sites
- 3
- Number Of Participants
- 50
Sites
- Site Name
- Medizinische Universitaet Innsbruck
- Department Name
- , Allgemeine Psychiatrische Ambulanz
- Contact Person Name
- Laurin Mauracher
- Contact Person Email
- mui-oversight@i-med.ac.at
- Site Name
- Universitätsklinik für Psychiatrie, Psychosomatik und Psychotherapie
- Department Name
- Klinische Abteilung für Psychiatrie und Psychotherapeutische Medizin
- Contact Person Name
- Eva Reininghaus
- Contact Person Email
- psychiatrie@uniklinikum.kages.at
- Site Name
- Universitätsklinikum St.Pölten
- Department Name
- Psychiatrie & psychotherapeutische Medizin
- Contact Person Name
- Gernot Fugger
- Contact Person Email
- psychiatrie@stpoelten.lknoe.at
Sponsor
Primary sponsor
- Full Name
- Dr. Willmar Schwabe GmbH & Co. KG
- Organisation Type
- Pharmaceutical company
- Country Of Registered Address
- Germany
Contract research organisations
- Name
- AMS Advanced Medical Services GmbH
- Responsibilities
- Multiple sponsor duties including regulatory submission and operational roles (codes: 1,10,11,15 'Regulatory submission',2,5,6,7)
- Name
- Glatt Pharmaceutical Services GmbH & Co. KG
- Responsibilities
- IMP distribution to sites (sponsorDuties code 15)
- Name
- Labor Dr. Spranger
- Responsibilities
- Laboratory services (sponsorDuties code 4)
Third parties
- {"country":"Germany","full_name":"Labor Dr. Spranger","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Laboratory/Research/Testing facility"}
- {"country":"Germany","full_name":"AMS Advanced Medical Services GmbH","duties_or_roles":"sponsorDuties codes: 1, 10, 11, 15 (Regulatory submission), 2, 5, 6, 7","organisation_type":"Pharmaceutical company"}
- {"country":"Germany","full_name":"Glatt Pharmaceutical Services GmbH & Co. KG","duties_or_roles":"sponsorDuties code: 15 (IMP Distribution to sites)","organisation_type":"Pharmaceutical company"}
Investigational products
- Investigational Product Name
- Silexan 80 mg
- Active Substance
- LAVENDER OIL
- Modality
- Other
- Routes Of Administration
- ORAL USE
- Route
- oral
- Authorisation Status
- Authorised (prodAuthStatus: 1)
- Starting Dose
- 80 mg
- Dose Levels
- 80 mg
- Frequency
- once daily
- Maximum Dose
- 80 mg/day
- Investigational Product Name
- Placebo to Silexan 80 mg
- Modality
- Other
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