Trial Outcomes & Findings for Does Enhanced Glutamate Transporter Function Produce Antidepressant Effects in People With Major Depression? (NCT NCT02049385)

NCT ID: NCT02049385

Last Updated: 2017-10-13

Results Overview

Change in Montgomery Asberg Depression Rating Scale (MADRS) from baseline to 7 days post-treatment. The range of values is from 0 - 60, with a higher score indicating increased depressive symptoms. A score of 7-19 indicates mild depression; 20-34 indicates moderate depression; \>34 indicates severe depression.

Recruitment status

TERMINATED

Study phase

PHASE1/PHASE2

Target enrollment

10 participants

Primary outcome timeframe

7 days

Results posted on

2017-10-13

Participant Flow

Participant milestones

Participant milestones
Measure
Diazoxide, Then Placebo
Subjects received 200-400 mg daily of diazoxide orally for three weeks; the dose was adjusted depending on side effects and response.
Placebo, Then Diazoxide
Subjects received a matched placebo for three weeks.
First Intervention
STARTED
4
2
First Intervention
COMPLETED
1
2
First Intervention
NOT COMPLETED
3
0
Second Intervention
STARTED
1
2
Second Intervention
COMPLETED
1
0
Second Intervention
NOT COMPLETED
0
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Does Enhanced Glutamate Transporter Function Produce Antidepressant Effects in People With Major Depression?

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=6 Participants
Subjects received 200-400 mg daily of diazoxide orally for three weeks; the dose was, adjusted depending on side effects and response.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
6 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
Sex: Female, Male
Male
3 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
6 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 7 days

Population: The analysis included those subjects who started treatment and completed treatment with Diazoxide or Placebo through at least 7 days.

Change in Montgomery Asberg Depression Rating Scale (MADRS) from baseline to 7 days post-treatment. The range of values is from 0 - 60, with a higher score indicating increased depressive symptoms. A score of 7-19 indicates mild depression; 20-34 indicates moderate depression; \>34 indicates severe depression.

Outcome measures

Outcome measures
Measure
Diazoxide
n=6 Participants
Subjects received 200-400 mg daily of diazoxide orally for three weeks; the dose was adjusted depending on side effects and response.
Placebo
n=3 Participants
Subjects received a matched placebo for three weeks.
MADRS Change at Day 7
0 percentage of change in units of scale
Interval 0.0 to 100.0
10 percentage of change in units of scale
Interval 0.0 to 100.0

Adverse Events

Diazoxide

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Diazoxide
n=6 participants at risk
Subjects received 200-400 mg daily of diazoxide orally for three weeks; the dose was adjusted depending on side effects and response.
Placebo
n=3 participants at risk
Subjects received a matched placebo for three weeks.
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Cardiac disorders
Chest pain
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Cardiac disorders
Tachycardia
16.7%
1/6 • 12 weeks
33.3%
1/3 • 12 weeks
Gastrointestinal disorders
Abdominal discomfort
16.7%
1/6 • 12 weeks
33.3%
1/3 • 12 weeks
Gastrointestinal disorders
Constipation
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Gastrointestinal disorders
Diarrhoea
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Gastrointestinal disorders
Dry mouth
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Gastrointestinal disorders
Nausea
33.3%
2/6 • 12 weeks
66.7%
2/3 • 12 weeks
General disorders
Discomfort
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Infections and infestations
Viral upper respiratory tract infection
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Metabolism and nutrition disorders
Weight increased
33.3%
2/6 • 12 weeks
0.00%
0/3 • 12 weeks
Metabolism and nutrition disorders
Decreased appetite
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Metabolism and nutrition disorders
Oedema
50.0%
3/6 • 12 weeks
0.00%
0/3 • 12 weeks
Musculoskeletal and connective tissue disorders
Chills
0.00%
0/6 • 12 weeks
0.00%
0/3 • 12 weeks
Musculoskeletal and connective tissue disorders
Muscle spasms
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Musculoskeletal and connective tissue disorders
Muscular weakness
16.7%
1/6 • 12 weeks
33.3%
1/3 • 12 weeks
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
16.7%
1/6 • 12 weeks
66.7%
2/3 • 12 weeks
Nervous system disorders
Akathisia
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Nervous system disorders
Headache
66.7%
4/6 • 12 weeks
0.00%
0/3 • 12 weeks
Nervous system disorders
Irregular sleep phase
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Nervous system disorders
Poor quality sleep
0.00%
0/6 • 12 weeks
66.7%
2/3 • 12 weeks
Nervous system disorders
Sedation
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Psychiatric disorders
Anxiety
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Psychiatric disorders
Decreased activity
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Respiratory, thoracic and mediastinal disorders
Irregular breathing
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Respiratory, thoracic and mediastinal disorders
Nasal congestion
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Respiratory, thoracic and mediastinal disorders
Throat irritation
0.00%
0/6 • 12 weeks
33.3%
1/3 • 12 weeks
Skin and subcutaneous tissue disorders
Hyperhidrosis
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Skin and subcutaneous tissue disorders
Skin irritation
16.7%
1/6 • 12 weeks
0.00%
0/3 • 12 weeks
Vascular disorders
Dizziness
33.3%
2/6 • 12 weeks
33.3%
1/3 • 12 weeks
Vascular disorders
Hypotension
16.7%
1/6 • 12 weeks
66.7%
2/3 • 12 weeks

Additional Information

Zarate, Carlos

National Institute of Mental Health

Phone: +1 301 451 0861

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place