NCT02972398

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

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2015

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

November 12, 2016

Completed
11 days until next milestone

First Posted

Study publicly available on registry

November 23, 2016

Completed
6.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2023

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2023

Completed
Last Updated

September 22, 2022

Status Verified

October 1, 2021

Enrollment Period

7.8 years

First QC Date

November 12, 2016

Last Update Submit

September 21, 2022

Conditions

Keywords

treatment resistant depressionN-Acetyl Cysteineinflammation mediatorsoxidative stressbrain imaging

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

EXPERIMENTAL

Participants 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)

Drug: N-acetylcysteine

Placebo group

PLACEBO COMPARATOR

Participants 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)

Drug: placebo comparator of N-acetylcysteine

Interventions

Participants of interventional group receive 1000mg N-acetylcysteine twice daily for 12 weeks.

Also known as: YiWeiShi
NAC group

Participants of placebo group receive placebo comparator matching with N-acetylcysteine twice daily for 12 weeks.

Placebo group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

RECRUITING

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.

MeSH Terms

Conditions

Depressive Disorder, MajorDepressive Disorder, Treatment-Resistant

Interventions

Acetylcysteine

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

CysteineAmino Acids, SulfurSulfur CompoundsOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Central Study Contacts

Chenghao Yang, Master

CONTACT

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

Locations