ClinicalTrials.gg
CompletedNCT03386448Updated May 20, 2019Results posted

The Safety and Efficacy of Naltrexone and Scopolamine Utilized in the Treatment of Major Depression

A Phase 4 interventional study of Scopolamine and naltrexone and placebo arm in Depression, sponsored by The Taub Group. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-05-20.

Sponsored by The Taub Group · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
14
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this clinical trial is to determine the safety and efficacy of scopolamine utilized in conjunction with naltrexone for the treatment of major depression.

Read the detailed description

The study will be a double blinded, randomized controlled trial. The medications will be administered orally. The sample size will be 40 participants, 20 in the treatment group and 20 in the control group. The study period will be 4 weeks. Eligible participants will have major depression by history for at least 8 weeks, between 18-65 years old, and in generally good health other than depression. The MADRS questionaire will be utilized to determine the response to the medications.

02

Conditions studied

  • Depression

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03

In context

Depression

8,577 studies on the registry are indexed under Depression; 1,720 are open to participants now.

This study's enrollment of 14 is below the median of 81 across 7,063 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

This is the only study on the registry with The Taub Group as lead sponsor.

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
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • male or female, aged 18-65
  • in good health other than major depression for 8 weeks or more
  • negative pregnancy test
  • able to comply with instructions
  • able to provide

Exclusion criteria

Exclusion Criteria:

  • pregnant or lactating
  • danger to self or others
  • severe kidney or liver disease
  • schizophrenia
  • allergy to scopolamine or naltrexone
  • glaucoma
  • Monoamine oxidase (MAO) inhibitor use
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
14 participants (actual)

Study arms

  • Placebo comparator
    control

    Participants will receive placebo medication

    Drug: placebo arm

  • Experimental
    Active

    participants will receive active medications scopolamine and naltrexone

    Drug: Scopolamine and naltrexone

Interventions

  • DrugScopolamine and naltrexone

    Drug pages: Scopolamine · Naltrexone

    participants will receive scopolamine and naltrexone in buccal drops

  • Drugplacebo arm

    participants will receive placebo medications

06

What researchers measure

Primary outcomes

  1. Response to Medications as Assessed by Change in Score on Modified MDRS Scale From Baseline to End of Study Period

    The Montgomery-Asberg (MADRS) depression scale will be utilized throughout the study. The scale is scored 0-60, 0 signifying no depression symptoms and 60 signifying very severe depression. A diagnosis of depression will be given to a participant in this study for a MADRS score of 20 or greater. A clinical response to medication will be noted when a participant has a 25% or greater decrease in MADRS score during the trial.

    Time frame: Baseline and 4 weeks

07

Results

Posted May 20, 2019

Participant flow

Participant flow — Overall Study
MilestoneControl(Placebo)Active(Scopolamine and Naltrexone)
Started68
Completed66
Not completed02
Withdrew: Adverse event02

Outcome measures

PrimaryResponse to Medications as Assessed by Change in Score on Modified MDRS Scale From Baseline to End of Study Period

The Montgomery-Asberg (MADRS) depression scale will be utilized throughout the study. The scale is scored 0-60, 0 signifying no depression symptoms and 60 signifying very severe depression. A diagnosis of depression will be given to a participant in this study for a MADRS score of 20 or greater. A clinical response to medication will be noted when a participant has a 25% or greater decrease in MADRS score during the trial.

Time frame:
Baseline and 4 weeks
Reported as:
Mean · units on a scale
Response to Medications as Assessed by Change in Score on Modified MDRS Scale From Baseline to End of Study Period
units on a scaleControl(Placebo)Active(Scopolamine and Naltrexone)
Response to Medications as Assessed by Change in Score on Modified MDRS Scale From Baseline to End of Study Period3.5 (1 to 7)12.5 (6 to 23)
Statistical analysis
  • Control(Placebo) vs Active(Scopolamine and Naltrexone) · t-test, 2 sided · p = 0.03 · Mean difference (final values): 9.0

Adverse events

Collected over Participants were assessed for adverse events for 8 weeks.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Control(Placebo)0/6 (0%)0/6 (0%)0/6 (0%)
Active(Scopolamine and Naltrexone)0/8 (0%)0/8 (0%)2/8 (25%)
Most frequent other events
Most frequent other events
EventControl(Placebo)Active(Scopolamine and Naltrexone)
NauseaGastrointestinal disorders0/62/8

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Control(Placebo)Active(Scopolamine and Naltrexone)Total
<=18 years000
Between 18 and 65 years6814
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Control(Placebo)Active(Scopolamine and Naltrexone)Total
Female6612
Male022
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Control(Placebo)Active(Scopolamine and Naltrexone)Total
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American101
White5813
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Control(Placebo)Active(Scopolamine and Naltrexone)Total
United States6814
08

Study locations

1 site
  • The Taub Group
    Charlotte, North Carolina 28211, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2018 to primary completion in Nov 2018, 10 months.

Results were first posted in May 2019, 6 months after primary completion.

Of 119 phase 4 interventional studies under Depression, half reached primary completion within 32 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 59. This study's 10 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 21, 2017
First posted
Dec 29, 2017
StartActual
Jan 1, 2018
Primary completionActual
Nov 20, 2018
CompletionActual
Nov 20, 2018
Results first posted
May 20, 2019
Last update
May 20, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 20, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03386448
Lead sponsor
The Taub Group
Responsible party
Neal Taub MD (Principle Investigator, The Taub Group) — Principal investigator
First posted
Dec 29, 2017
Start date
Jan 1, 2018
Primary completion
Nov 20, 2018
Completion
Nov 20, 2018
Results posted
May 20, 2019
Last update
May 20, 2019

Study contacts

Neal Taub
principal investigator · The Taub Group

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2019. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Scopolamine · Naltrexone

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