CClinicalTrials.gg
CompletedNCT04315597Updated Mar 19, 2020

Study to Learn About Relapse Prevention of Hypericumextract (a Drug Based on the Plant St. John Wort) in Outpatients Suffering From Moderate Depressive Episodes

A Phase 3 interventional study of Laif® 900, BAY98-7108 and Placebo in Moderate Depressive Episodes (Major Depression), sponsored by Bayer. Completed. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2020-03-19.

Sponsored by Bayer · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Registered 11 years after the study started (first participant enrolled Mar 2009, registered Mar 2020).
Phase
Phase 3
Study type
Interventional
Enrollment
398
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The researchers in this trial want to learn more about the drug Laif® 900 in preventing the return of signs and symptoms of depressions (also called relapse) in patients suffering from moderate depression episodes. The study drug Laif® 900 is based on Hypericumextract made from the plant St. John wort. Patients will be accepted to take part in the study if they have 20-24 points on the Hamilton Depression Rating Scale (HAM-D) which is a questionnaire helping the doctor to rate the severity of the depression and includes questions on patient's mood, sleep difficulties, agitation, anxiety and weight loss. About 400 patients will be enrolled into the first part of the study and will be treated for 12 weeks with Laif® 900 capsule once daily. Only patients with an improved HAM-D score by 50% will stay in the study and continue with the second part of the study which will last for 24 weeks.

In this second part of the study patients will receive either Laif® 900 capsule once daily or an inactive tablet (placebo). Neither the treating doctor nor the patient will know which patient receives the Laif® 900 or placebo. At the end of the study the researcher will assess the effectiveness of the study drug in prevention relapse of depression episodes and will also have more information on the safety of the study drug.

02

Conditions studied

  • Moderate Depressive Episodes (Major Depression)
03

In context

Depression

8,057 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's enrollment of 398 is above the median of 84 across 6,720 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

Study Phase 1:

  • Age 18-70 years
  • Diagnosis according to DSM-IV-TR: 296.32: Outpatients with a mediocre depressive episode requiring treatment for recurrent major depression
  • At least 5 of the following symptoms must persist for 2 weeks, with at least one of the main symptoms:
  • Depressed mood (main symptom)
  • Loss of interest or pleasure (main symptom)
  • Significant weight loss without diet or weight gain
  • Increased sleep or insomnia
  • Psychomotor restlessness or slowing down
  • Excessive, inappropriate guilt or feelings of worthlessness on almost every day
  • Subjective or observable diminished ability to think and to decide
  • Fatigue and loss of energy
  • Suicidal thoughts and / or actions

Study Phase 2:

  • Phase 1 responders (= Phase 1 patients who have at least a 50% decrease in the HAMD-17 total score after 12 weeks of Laif® 900 therapy).

Exclusion Criteria: General (phase 1 and phase 2)

  • Unable to work and patients cared for according to the BtG (working group "Stay") and "Medical Measures")
  • Simple mourning reaction
  • Clinically relevant laboratory abnormalities due to severe organ and systemic diseases
  • Taking immunosuppressants (eg after organ transplants)
  • Taking oral contraceptives with low levels of hormones (estrogen ≤ 50 μg, micropillus)
  • Thyroid dysfunction (patients with non-euthyroid TSH levels)
  • Known intolerance to the test medication
  • Known photosensitivity
  • Diabetes mellitus type I and II requiring treatment
  • Unstable hypertension
  • Pregnancy or breastfeeding
  • Cancer and AIDS patients (HIV-positive)
  • Alcohol, drug or drug abuse in the last 6 months
  • Coadministration with coumarin-type anticoagulants
  • History of epilepsy
  • Melanoma
  • Specific psychotherapy in the last 2 months and during the clinical trial
  • Participation in a clinical trial within the last 30 days
  • Simultaneous participation in another clinical trial
  • Compliance and protocol management are not guaranteed by language problems
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
398 participants (actual)

Study arms

  • Experimental
    Hypericum extract STW 3-VI (Laif® 900, BAY98-7108)

    Drug: Laif® 900, BAY98-7108

  • Placebo comparator
    Placebo

    Drug: Placebo

Interventions

  • DrugLaif® 900, BAY98-7108

    1 x daily, 1 tablet, 900 mg

  • DrugPlacebo

    1 x daily, 1 tablet, 900 mg

06

What researchers measure

Primary outcomes

  1. Relapse rate

    Definition: Increase of the Hamilton rating scale for depression (HAMD)-17 total score in Phase 2 by \> 5 points compared to Phase 2 baseline, if at the same time a total score of at least 12 is reached.

    Time frame: 24 weeks

Secondary outcomes

  1. Time between baseline and occurrence of relaps measured by: Total score of HAMD-17

    Time frame: 24 weeks

  2. Time between baseline and occurrence of relaps measured by: Beck Depression Inventory (BDI)

    Time frame: 24 weeks

  3. Time between baseline and occurrence of relaps measured by: Clinical Global Impressions (CGI)

    Time frame: 24 weeks

  4. Global assessment of efficacy by investigators and patients

    % of investigators and patients, respectively, who rated the efficacy "very good" or "good", respectively.

    Time frame: 12 and 24 weeks

  5. Safety and Tolerability: Number of Adverse Events

    Time frame: 36 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided — Availability of this study's data will be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.clinicalstudydatarequest.com to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the Study sponsors section of the portal.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 19, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04315597
Lead sponsor
Bayer
Collaborators
Steigerwald Arzneimittelwerk GmbH
Responsible party
Sponsor
First posted
Mar 19, 2020
Start date
Mar 3, 2009
Primary completion
Nov 22, 2011
Completion
Nov 22, 2011
Last update
Mar 19, 2020

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 Mar 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion