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Antiviral Agent

Valganciclovir for Depression

Phase 1 & 2
Recruiting
Research Sponsored by Laureate Institute for Brain Research, Inc.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Ability to take oral medication and be willing to adhere to the VGCV regimen
Current symptoms of depression, that is, a QIDS-SR score ≥14.
Must not have
Impaired renal function (estimated glomerular filtration rate <60mL/minute/1.73m2)
Moderate to severe traumatic brain injury (>30 min. loss of consciousness or >24 hours posttraumatic amnesia) or other neurocognitive disorder with evidence of neurological deficits.
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 8 weeks

Summary

This trial aims to find out if valganciclovir, a medication used to treat CMV, can also help treat major depressive disorder by reducing symptoms and inflammation.

Who is the study for?
Adults aged 18-65 with major depressive disorder and a QIDS-SR score ≥14, who are in good health, have not taken medication for at least 4 weeks (8 weeks for fluoxetine), and can commit to the study's duration. Participants must use effective contraception and be willing to take oral medication as prescribed.
What is being tested?
The trial is testing if valganciclovir (VGCV) improves depression symptoms more effectively than a placebo in CMV+ individuals with MDD. It's an 8-week double-blind study where participants will receive either VGCV or placebo daily, along with regular clinical evaluations, blood draws, MRI scans, and weekly phone check-ins.
What are the potential side effects?
Potential side effects of valganciclovir include but are not limited to headaches, nausea, diarrhea, vomiting, fever; less common ones may involve changes in mood or mental state such as confusion or hallucinations.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I can take pills and will follow the prescribed medication plan.
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I am currently experiencing symptoms of depression.
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I have been diagnosed with major depressive disorder.
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I am between 18 and 65 years old.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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My kidney function is reduced.
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I have had a severe brain injury or a disorder affecting my brain function.
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I am undergoing treatment that lowers my blood cell counts.
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I do not have thoughts about harming myself or planning suicide.
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I use or have used drugs that change how my immune system works.
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I am fluent in English.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~8 weeks
This trial's timeline: 3 weeks for screening, Varies for treatment, and 8 weeks for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
White matter integrity of the inferior fronto-occipital fasciculus (IFOF)
Secondary study objectives
Volume of the medial temporal gyrus (MTG)
Other study objectives
Anhedonia
CD8+ cells
Depression
+2 more

Side effects data

From 2015 Phase 4 trial • 40 Patients • NCT01509404
50%
Leukopenia
30%
Acute rejection
25%
BK infection
20%
CMV disease
15%
Candidiasis
5%
Thrombocytopenia
100%
80%
60%
40%
20%
0%
Study treatment Arm
Valcyte Then Cytogam
Valcyte

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: ValganciclovirExperimental Treatment1 Intervention
900 milligrams (mg) valganciclovir (VGCV) to be taken orally once per day for 8 weeks.
Group II: PlaceboPlacebo Group1 Intervention
Placebo equivalent of 900 milligrams (mg) VGCV to be taken orally once per day for 8 weeks.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Valganciclovir
2019
Completed Phase 4
~2160

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Common treatments for depression primarily include antidepressants that target monoaminergic systems, such as selective serotonin reuptake inhibitors (SSRIs), serotonin-norepinephrine reuptake inhibitors (SNRIs), and tricyclic antidepressants (TCAs). These medications work by increasing the levels of neurotransmitters like serotonin and norepinephrine in the brain, which are believed to improve mood and emotional state. Understanding these mechanisms is crucial for patients as it helps in selecting the most appropriate treatment based on their specific symptoms and biological responses. The trial studying Valganciclovir, an antiviral agent, explores a novel approach by targeting inflammation and neural circuitry alterations associated with cytomegalovirus (CMV) infection in depression, potentially offering new insights and treatment options for patients who do not respond to traditional antidepressants.
Ketamine as treatment for post-traumatic stress disorder: a review.The role of glutamatergic, GABA-ergic, and cholinergic receptors in depression and antidepressant-like effect.Drugs, genes and the blues: pharmacogenetics of the antidepressant response from mouse to man.

Find a Location

Who is running the clinical trial?

Laureate Institute for Brain Research, Inc.Lead Sponsor
52 Previous Clinical Trials
5,416 Total Patients Enrolled
18 Trials studying Depression
2,657 Patients Enrolled for Depression

Media Library

Valganciclovir (Antiviral Agent) Clinical Trial Eligibility Overview. Trial Name: NCT04724447 — Phase 1 & 2
Depression Clinical Trial 2023: Valganciclovir Highlights & Side Effects. Trial Name: NCT04724447 — Phase 1 & 2
Valganciclovir (Antiviral Agent) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04724447 — Phase 1 & 2
~6 spots leftby Dec 2025