CClinicalTrials.gg
WithdrawnNCT02223299Updated Feb 21, 2020

Pilot Study: Combining Nutritional Supplements With Standard Antidepressant to Treat Depression.

An interventional study of L-tyrosine and L-Tryptophan in Depression, sponsored by John D. Dingell VA Medical Center. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-02-21.

Sponsored by John D. Dingell VA Medical Center · Not applicable, Interventional, and Other

Why this study was withdrawn
The study was never approved by the IRB and the PI left the VA
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

**This study never received IRB approval and no participants were ever enrolled** The purpose of this study is to determine if adding over the counter nutritional supplements will have a benefit to participants currently taking prescribed antidepressants who have not experienced complete remission of their depression symptoms.

Read the detailed description

Inclusion Criteria:

Detroit VA Patients with major depression, mild to moderate treated with an SSRI and not having complete remission of symptoms as defined by "feeling their normal selves"

Randomized into two groups:

Experimental: will receive month supply of deplin 15mg, L-tyrosine 6g/d into 2 divided doses, and L-tryptophan 2g/d into 2 divided doses.

Control: will receive month supply of deplin 15mg , and 2 placebo pills.

Beck Depression Scale (BDI-2) to be administered at baseline and every 2 weeks for 1 month.

02

Conditions studied

  • Depression

Keywords

  • Depression
  • SSRI
  • Nutritional Supplements
  • Beck Depression Scale
03

In context

Depression

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

Browse Depression studies →

Lead sponsor

John D. Dingell VA Medical Center is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

**This study never received IRB approval and no participants were enrolled**

Inclusion Criteria:

  • Veterans Administration Medical Center patients with major depression, mild to moderate treated with an SSRI and not having complete remission of symptoms.
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Single group
Masking
Single (Participant)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Deplin w Supplements

    deplin 15mg plus L-Tyrosine 6g/d and L-Tryptophan 2g/d for 30 days

    Dietary Supplement: L-tyrosine · Dietary Supplement: L-Tryptophan · Drug: deplin

  • Placebo comparator
    Deplin w placebo

    deplin 15mg daily plus Placebo A and Placebo B for 30 days

    Drug: deplin · Other: Placebo A · Other: Placebo B

Interventions

  • Dietary supplementL-tyrosine

    6g/d daily for 30 days

  • Dietary supplementL-Tryptophan

    2g/d daily for 30 days

  • Drugdeplin

    15mg daily for 30 days

    Also known as: L-methylfolate

  • OtherPlacebo A

    a sugar-pill that looks like a real medication

  • OtherPlacebo B

    a sugar-pill that looks like a real medication

06

What researchers measure

Primary outcomes

  1. Benefit of nutritional supplement

    Through participant interviews and Beck Depression scale determine if adding nutritional supplements improve or resolve complete remission of depression symptoms.

    Time frame: 30 days

07

Study locations

1 site
  • John D Dingell VA Medical Center
    Detroit, Michigan 48201-1916, United States
08

References and documents

Individual participant data

Plan to share: No — This study never received IRB approval and never enrolled any participants. ClinicalTrials.gov entry should be removed.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 21, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02223299
Lead sponsor
John D. Dingell VA Medical Center
Responsible party
Sponsor
First posted
Aug 22, 2014
Start date
Nov 2015
Primary completion
Nov 2015
Completion
Nov 2015
Last update
Feb 21, 2020

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Feb 2020. You cannot join it, but the record below documents what was studied.

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