Trial reportNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2012
Pioglitazone adjunctive therapy for moderate-to-severe major depressive disorder: randomized double-blind placebo-controlled trial.
Trial report in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01109030 (Pioglitazone as an Adjunct for Moderate to Severe Depressive Disorder), which is not on this map. Cited by 82 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Pioglitazone as an Adjunct for Moderate to Severe Depressive Disorder
Who cites it
82 citing papers in PubMed, 4 syntheses or guidelines pooled it, 145 citations in OpenAlex.
- Multimodal microglial and kynurenine pathway alterations across the affective-psychosis spectrum: a systematic review of patterns, heterogeneity, and dimensional implications.Molecular psychiatry · 2026Pooled it
- Mitochondrial-inflammation crosstalk in major depressive disorder: molecular mechanisms and therapeutic implications.Molecular psychiatry · 2026Pooled it
- Microglia associated research in depression: an exploratory trends analysis.Frontiers in aging neuroscience · 2026Pooled it
- Effects of the selective serotonin reuptake inhibitors citalopram and escitalopram on glucolipid metabolism: a systematic review.Frontiers in endocrinology · 2025Pooled it
- Rosiglitazone Adjunct to Sertraline for Major Depressive Disorder: A Randomized, Double-Blind, Placebo-Controlled Trial.Depression and anxiety · 2026Trial
- Efficacy of empagliflozin as adjunctive therapy to citalopram in major depressive disorder: a randomized double-blind, placebo-controlled clinical trial.BMC psychiatry · 2024Trial
- Neuronally-enriched exosomal microRNA-27b mediates acute effects of ibuprofen on reward-related brain activity in healthy adults: a randomized, placebo-controlled, double-blind trial.Scientific reports · 2022Trial
- Impact of ibuprofen and peroxisome proliferator-activated receptor gamma on emotion-related neural activation: A randomized, placebo-controlled trial.Brain, behavior, and immunity · 2021Trial
- The effects of pioglitazone adjuvant therapy on negative symptoms of patients with chronic schizophrenia: a double-blind and placebo-controlled trial.Human psychopharmacology · 2016Trial
- Adjuvant pioglitazone for unremitted depression: Clinical correlates of treatment response.Psychiatry research · 2015Trial
- PPAR-γ agonism as a modulator of mood: proof-of-concept for pioglitazone in bipolar depression.CNS drugs · 2014Trial
- Celecoxib as adjunctive treatment to risperidone in children with autistic disorder: a randomized, double-blind, placebo-controlled trial.Psychopharmacology · 2013Trial
- The Estrogen-Mitochondria Axis in Bipolar Disorder: From Fluctuating Hormones to Failing Bioenergetics.Biological psychiatry global open science · 2026Review
- Molecular Characterization of the Progressive Landscape of Depression.bioRxiv : the preprint server for biology · 2026Article
- PPARγ as a predictive biomarker for antidepressant response in major depressive disorder: Insights from TNIP1 transcriptional regulation.Brain, behavior, & immunity - health · 2026Article
- The adiponectin-depression nexus: a brief review of mechanisms and therapeutic opportunities.Metabolic brain disease · 2026Review
- Sodium-Glucose Cotransporter-2 Inhibitors in Mood Disorders: A Narrative Review of Mechanisms, Evidence, and Challenges.Neuropsychiatric disease and treatment · 2026Review
- Mitochondrial CISD1 Modulates Microglial Metabolic Reprogramming to Drive Stress Susceptibility in Mice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- A pancreas-hippocampus feedback mechanism regulates circadian changes in depression-related behaviors.Nature neuroscience · 2025Article
- Childhood insulin resistance and neural stem cell dysfunction in psychiatric disorders: Role ofWorld journal of stem cells · 2025Review
22 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Thiazolidinediones have shown antidepressant effect in animal studies, as well as in some uncontrolled studies evaluating human subjects with concurrent major depressive disorder (MDD) and metabolic syndrome. Although these drugs are insulin sensitizers, they also have important anti-inflammatory, neuroprotective, and anti-excitotoxic properties. Thus, we hypothesized that they would show antidepressant effect in patients with MDD even if it was not accompanied by metabolic disturbances. In this double-blind placebo-controlled study, 40 patients with MDD (DSM-IV-TR) and Hamilton depression rating scale-17 (Ham-D) score ≥ 22 were randomized to citalopram plus pioglitazone (15 mg every 12 h) (n=20) or citalopram plus placebo (n=20) for 6 weeks. Patients were evaluated using Ham-D (weeks 0, 2, 4, 6). Repeated-measure analysis of variance (ANOVA) and analysis of covariance were used for comparison of scores between the two groups. Treatment response (≥ 50% reduction in Ham-D score), remission (Ham-D score ≤ 7), and early improvement (≥ 20% reduction in Ham-D score within the first 2 weeks) were compared between the two groups using Fisher's exact test. Pioglitazone showed superiority over placebo during the course of the trial (F(1, 38)=9.483, p=0.004). Patients in the pioglitazone group had significantly lower scores at all time points than the placebo group (P<0.01). Frequency of early improvement, response (week 6), and remission was significantly higher in the pioglitazone group (95%, 95%, 45%, respectively) than in the placebo (30%, 40%, 15% respectively) group (P<0.001, <0.001, 0.04, respectively). Frequency of side effects was similar between the two groups. Pioglitazone is a safe and effective adjunctive short-term treatment in patients with moderate-to-severe MDD even in the absence of metabolic syndrome and diabetes.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.