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Effectiveness of Pramipexole for Treatment-Resistant Depression

Mass General Brigham logo

Mass General Brigham

Status and phase

Completed
Phase 4

Conditions

Depression

Treatments

Drug: Placebo
Drug: Pramipexole (Mirapex)

Study type

Interventional

Funder types

Other
NIH

Identifiers

NCT00231959
DATR AK-TNGP1
K23MH067060 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

This study will evaluate the effectiveness of pramipexole (Mirapex) in managing treatment-resistant depression.

Full description

Depression is a serious medical illness, for which various types of treatment have been developed. Both medications and therapies have proven effective in treating depression. However, some people with depression do not benefit from these treatments. New medications are needed for treating depression in those who have not responded to commonly used antidepressants. Pramipexole (Mirapex) is most often used for the treatment of Parkinson's disease, but has been reported to have antidepressant effects as well. This study will evaluate the effectiveness of pramipexole in treating depression in individuals that have not responded to other medications.

Participants in this double blind study will be randomly assigned to receive either pramipexole or placebo, in addition to their current medications, for 8 weeks. Treatment response will be assessed at the end of this phase by measuring symptoms of depression. At this time, those individuals who have responded to treatment will have the option to continue in a 6-month follow-up study. Participants will be seen monthly throughout the 6 months to assess treatment response. Participants who do not exhibit a response to treatment will be tapered off the medication. All participants will receive 3 months of follow-up care, regardless of their response to the medication.

Enrollment

65 patients

Sex

All

Ages

18 to 75 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Meets diagnostic criteria for major depressive disorder
  • Meets criteria for current major depressive episode
  • Score of at least 18 on the Montgomery-Asberg Depression Rating Scale (MADRS) at the baseline visit
  • Currently being treated with antidepressant monotherapy at an adequate dose for 6 weeks or willing to enter open lead-in treatment
  • Agrees to use an effective form of contraception throughout the study

Exclusion criteria

  • Pregnant
  • At risk for suicide or homicide
  • Unstable medical illness (e.g., cardiovascular, liver, kidney, respiratory, endocrine, or neurologic disease, including uncontrolled seizure disorder)
  • History of a substance use disorder within 6 months of study enrollment
  • History of or current psychotic features
  • Currently being treated with typical or atypical antipsychotic medications
  • Currently being treated with a medication known to significantly decrease pramipexole clearance (e.g., cimetidine, ranitidine, diltazem, verapamil, quinine or triamterene)
  • Clinical or laboratory evidence of untreated hypothyroidism
  • History of a 2-week or longer course of pramipexole
  • Intolerance of pramipexole at any dose
  • Any investigational psychotropic drug use within the last three months
  • Level 3 or greater antidepressant resistance as assessed by the ATHF
  • Three or more episodes of self-harm in the year prior to study enrollment
  • Documented history of poor treatment adherence or frequently missed appointments
  • Parkinson's disease

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

65 participants in 2 patient groups, including a placebo group

Sugar pill
Placebo Comparator group
Description:
Placebo
Treatment:
Drug: Placebo
Pramipexole
Experimental group
Treatment:
Drug: Pramipexole (Mirapex)

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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