N-Acetyl Cysteine Supplementation in Therapy Refractory Major Depressive Disorders
N-Acetyl Cysteine add-on to Antidepressant Medication in Therapy Refractory Major Depressive Disorder Patients With Increased Inflammatory Activity
1 other identifier
interventional
200
1 country
1
Brief Summary
The aim of this study is to evaluate the efficacy of N-acetylcysteine (NAC) add-on to antidepressant medication in treating patients who do not relieve during standard antidepressant treatment for 6 weeks at least. Meanwhile, secondary outcomes will include changes in some biomarkers and on specifically local brain activity (functional Magnetic Resonance Imaging, fMRI) and white matter integrity (Diffusion Tensor Imaging, DTI). The hypothesis of this study is that NAC has positive effects on refractory major depressive disorder patients with increased inflammatory activity.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2015
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2015
CompletedFirst Submitted
Initial submission to the registry
November 12, 2016
CompletedFirst Posted
Study publicly available on registry
November 23, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2023
CompletedSeptember 22, 2022
October 1, 2021
7.8 years
November 12, 2016
September 21, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The change from baseline Hamilton Depression Rating Scale (HAMD)-17 items at week2,4,6,8,10,and 12.
The main objective is to investigate whether daily oral NAC administration in addition to regular treatment with an antidepressant will alleviate the severity of MDD symptoms as measured with the HAMD-17 after 12 weeks of treatment compared to placebo addition, and we also look at other time points, such as week 2,4,6,8,and 10.
baseline, Week 2,4,6,8,10, and 12
Secondary Outcomes (8)
The change from baseline HAMD-17 items at week14,16,18,and 20.
baseline, Week 14,16,18,and 20.
The effects of augmentation treatment with NAC on scores in Beck Anxiety Inventory (BAI)
baseline, Week 4,8,12,16,and 20.
The effects of augmentation treatment with NAC on scores in Inventory of Depressive Symptoms-Self-Rated (IDS-SR)
baseline, Week 4,8,12,16,and 20.
The effects of augmentation treatment with NAC on scores in WHO Disability Assessment Schedule Ⅱ (WHODAS-Ⅱ)
baseline, Week 4,8,12,16,and 20.
The effects of augmentation treatment with NAC on scores in Montreal Cognitive Assessment (MoCA)
baseline, Week 4,8,12,16,and 20.
- +3 more secondary outcomes
Study Arms (2)
NAC group
EXPERIMENTALParticipants of "NAC group" receive 1000 mg NAC twice daily for 12 weeks as add-on to either a selective serotonin reuptake inhibitor (SSRI) or a serotonin and noradrenalin reuptake inhibitor (SNRI)
Placebo group
PLACEBO COMPARATORParticipants of "Placebo group" receive placebo matched with NAC twice daily for 12 weeks as add-on to either a selective serotonin reuptake inhibitor (SSRI) or a serotonin and noradrenalin reuptake inhibitor (SNRI)
Interventions
Participants of interventional group receive 1000mg N-acetylcysteine twice daily for 12 weeks.
Participants of placebo group receive placebo comparator matching with N-acetylcysteine twice daily for 12 weeks.
Eligibility Criteria
You may qualify if:
- a current episode of MDD diagnosed according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV-TR) diagnosed with SCID
- an age between 18 and 65 years
- a total score of HAMD-17 ≥ 17
- a CRP level between 0.85 and 10 mg/L (The CRP range is based on literature values for mild to moderate chronic inflammation, while values \> 10 mg/L point at acute inflammation. A pilot study at the Tianjin Hospital (n=62) indicated that approximately one third of all patients with MDD will have CRP values within this range). insufficient response to 1 or more antidepressants given for at least 6 weeks and in an adequate dose during the current episode
- stable dose of the current antidepressant drug for at least 2 weeks prior to initiation of the study
- Patients are allowed to use benzodiazepines (BZD) to relieve anxiety during the first phase of antidepressant treatment (Anding Hospital protocol). Benzodiazepines may also be prescribed because of sleeping problems during the trial. BZD use will be recorded at all assessments during the trial and after follow-up.
- Patients are compliant with treatment according to the judgement of the treating clinician.
- Female subjects will be eligible to participate in the study if they are of non-childbearing potential or of child-bearing potential and willing to practice appropriate birth control methods during the study. Clinical patients always get a pregnancy test before start of treatment.
- Participant or guardian has to sign informed consent. The patients' guardians will sign the informed consent on behalf of the participants when the capacity of participants to consent is compromised.
You may not qualify if:
- A history of manic episode
- Use of mood stabilizer
- Use of antipsychotic medication with more than half of the maximum dosage suggested in the instruction
- History of substance abuse or dependence
- An allergic reaction to NAC or any component of the preparation
- Severe somatic diseases that might interfere with regular antidepressant treatment including conditions such as kidney and liver failure, uncontrolled hypertension, cardiovascular, cerebrovascular and pulmonary disease, thyroid disease, diabetes, epilepsy and asthma.
- Use of anti-inflammatory medication for longer than 7 days in the last two months preceding the trial
- Use of immunosuppressive medication such as oral steroid hormones
- History of chronic infection, such as Tuberculosis, AIDS, hepatitis
- CRP value \> 10 mg/L
- Women in pregnancy or lactation period
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Tianjin Anding Hospital
Tianjin, Tianjin Municipality, 300222, China
Related Publications (1)
Yang C, Bosker FJ, Li J, Schoevers RA. N-acetylcysteine as add-on to antidepressant medication in therapy refractory major depressive disorder patients with increased inflammatory activity: study protocol of a double-blind randomized placebo-controlled trial. BMC Psychiatry. 2018 Sep 4;18(1):279. doi: 10.1186/s12888-018-1845-1.
PMID: 30176835DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 12, 2016
First Posted
November 23, 2016
Study Start
September 1, 2015
Primary Completion
July 1, 2023
Study Completion
September 1, 2023
Last Updated
September 22, 2022
Record last verified: 2021-10