NCT05324735

Brief Summary

A growing body of evidence has highlighted the role of inflammation and phosphodiesterases (PDE)-related pathways in the pathogenesis of neuropsychiatric illnesses such as depression/mood disorders. Herein, we aimed to evaluate the therapeutic benefits of pentoxifylline (PTX) in the treatment of therapy-resistant depression (TRD) in adult patients with bipolar depression.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Dec 2021

Shorter than P25 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 15, 2021

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 25, 2022

Completed
18 days until next milestone

First Posted

Study publicly available on registry

April 12, 2022

Completed
22 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 4, 2022

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 4, 2022

Completed
Last Updated

September 7, 2022

Status Verified

September 1, 2022

Enrollment Period

5 months

First QC Date

March 25, 2022

Last Update Submit

September 5, 2022

Conditions

Keywords

Bipolar DepressionPentoxifyllineResistant Major Depression

Outcome Measures

Primary Outcomes (1)

  • Hamilton Depression Rating Scale-17 (HAM-D-17) Scores

    The HAM-D-17 is a 17-item scale that asks participants to rate the severity of their depression symptoms. Scoring is based on the 17-item scale. The total score ranges from 0 to 52, with higher numbers demonstrating more severe symptoms. Normal scores range from 0 to 7, mild depression ranges from 8 to 16, moderate depression ranges from 17 to 23, and scores of 24 and greater indicate severe depression. Remission is defined as HAM-D-17 total score ≤ 7 (primary outcome).

    12 weeks

Secondary Outcomes (5)

  • Response Rate

    12 weeks

  • Remission Rate

    12 weeks

  • Serum level of CRP

    12 weeks

  • Serum level of TNF-α

    12 weeks

  • Serum level of IL-6

    12 weeks

Study Arms (2)

Pentoxifylline

EXPERIMENTAL

Pentoxifylline (tablet): 400 mg twice a day for 12 weeks

Drug: Pentoxifylline

Control group

PLACEBO COMPARATOR

Placebo (tablet): twice a day for 12 weeks

Drug: Placebo

Interventions

All participants will receive pentoxifylline 400 mg (orally ingested) twice a day for 12 weeks.

Also known as: Trental
Pentoxifylline

All participants will receive placebo (orally ingested) twice a day for 12 weeks.

Also known as: Sugar Pills
Control group

Eligibility Criteria

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

You may qualify if:

  • Provide written, voluntary informed consent prior to study enrollment.
  • Male or female between the ages of 18 to 65.
  • Meets the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-IV) criteria for bipolar I or II, currently experiencing a major depressive episode. A Mini-International Neuropsychiatric Interview (MINI) conducted by physician was used to confirm the diagnosis.
  • Meets the criteria for treatment resistant depression (TRD) defined by failure to respond to of at least two treatment trials (antidepressant regimen or electroconvulsive therapy) during the current depressive episode.
  • Prior to taking part in the trial, all patients were requested to be antidepressant free for 4 weeks or to be on a fixed psychotropic therapeutic regimen for at least 4 weeks.

You may not qualify if:

  • Current psychotic symptoms or perceptual problems.
  • The presence of a contraindication to PTX, such as a drug allergy or xanthine derivative allergy.
  • Patients with substance dependence or abuse.
  • Patients with concurrent active medical condition (congestive heart failure, abnormal electrocardiogram, malignancy, schizophrenia, neurological disease).
  • Patients with inflammatory disorders and/or auto-immune conditions (rheumatoid arthritis, inflammatory bowel disease, multiple sclerosis, lupus)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hawler Psychiatric Hospital and Private Clinic

Erbil, 44001, Iraq

Location

MeSH Terms

Conditions

Bipolar Disorder

Interventions

Pentoxifylline

Condition Hierarchy (Ancestors)

Bipolar and Related DisordersMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

TheobromineXanthinesPurinonesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Talar A Merzamohammad, Pharm. D

    Hawler Medical University, College of Pharmacy, Department of Pharmacology and Toxicology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 25, 2022

First Posted

April 12, 2022

Study Start

December 15, 2021

Primary Completion

May 4, 2022

Study Completion

June 4, 2022

Last Updated

September 7, 2022

Record last verified: 2022-09

Data Sharing

IPD Sharing
Will not share

Locations