NCT02225548

Brief Summary

The purpose of this study is to see if selegiline and tadalafil (generic for Cialis®) results in an improvement in Erectile dysfunction (ED) in male patients with Parkinson's disease (PD) and moderate ED. Male PD patients who have an incomplete response to tadalafil alone will be given both medications to see if the addition of selegiline improves ED symptoms more than tadalafil alone. It is common practice for a medical doctor to prescribe these two drugs to a patient like you. However, there have been no studies conducted to examine the effects of these medications when taken together. Selegiline is normally prescribed for PD patients that are taking carbidopa/levodopa who are not receiving complete benefit from carbidopa/levodopa. Tadalafil is normally prescribed to men who have erectile dysfunction and/or benign prostatic hyperplasia (BPH).

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
10

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Sep 2014

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 22, 2014

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 26, 2014

Completed
6 days until next milestone

Study Start

First participant enrolled

September 1, 2014

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2019

Completed
Last Updated

December 20, 2017

Status Verified

December 1, 2017

Enrollment Period

4.3 years

First QC Date

August 22, 2014

Last Update Submit

December 18, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes in International Index of Erectile Function-5 (IIEF-5) score between baseline (Week 8) to end-of-study (Week 16).

    The International Index of Erectile Function (IIEF) is a widely used, multi-dimensional self-report instrument for the evaluation of male sexual function.

    The IIEF-5 will be administered at Weeks 4, 8, 12 and 16 of the study.

Study Arms (1)

Selegiline and Tadalafil

EXPERIMENTAL

Tadalafil 2.5mg for 4 weeks then oral selegiline 5mg daily for 2 weeks then increased to 5mg twice daily for 2 more weeks

Drug: SelegilineDrug: Tadalafil

Interventions

Also known as: Eldepryl, Zelapar
Selegiline and Tadalafil
Also known as: Cialis, Adcirca
Selegiline and Tadalafil

Eligibility Criteria

Age40 Years - 64 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Diagnosis of idiopathic Parkinson's disease that is optimally treated (motor fluctuations \<20% of subject's awake time). Subjects may be on levodopa therapy but must be stable at the time of entry into the study
  • Sexually active (i.e. ≥1 attempt/week) males, 40 - 64 years of age (inclusive) at time of screening
  • Diagnosis of moderate erectile dysfunction (defined according to the NIH Consensus Development Panel on Impotence) for more than 6 months and demonstrating and incomplete response to tadalafil alone
  • Subject demonstrating an IIEF-5 drug-free baseline score that is ≥ 10 but ≤ 16, and an IIEF-5 tadalafil-alone baseline score that is ≤ 18
  • Subject in a stable heterosexual relationship for at least 6 months. (2)
  • Subject motivated to seek treatment for erectile dysfunction.
  • Subject with a total serum testosterone level ≥ 300 ng/dL, with or without supplementation
  • Hoehn and Yahr Scale score of 1 - 3
  • Patient able to consent and comply with protocol requirements

You may not qualify if:

  • Subject unwilling to cease use of any treatment for erectile dysfunction during the study, including oral medication, vacuum devices, constrictive devices, injections, urethral suppositories, gels, any over-the-counter or nonprescription medications, and products purchased via the internet
  • Subject with a history of syncope within the last 6 months prior to screening
  • Subject with symptomatic postural hypotension (severe dizziness or fainting
  • Subject with hypotension and a resting systolic blood pressure of \< 90 mmHG or hypertension with a resting systolic blood pressure \> 170 mmHG or a resting diastolic blood pressure \> 110 mmHG
  • Subject with any underlying cardiovascular condition, including unstable angina pectoris, which preclude sexual activity
  • Subject with a history of myocardial infarction, stroke or life-threatening arrhythmia within 6 months prior to screening
  • Subject with uncontrolled atrial fibrillation/flutter at screening (defined as ventricular response rate ≥ 100 bpm)
  • Subject with a bleeding disorder
  • Subject with a history of prostatectomy because of prostate cancer, including nerve sparing techniques. Subjects with a history of surgical procedures for the treatment of benign prostate hypertrophy are permitted, with the exception of cryosurgery, cryotherapy or cryoablation
  • Subject with hereditary degenerative retinal disorders such as retinitis pigmentosa
  • Subject with a history of loss of vision because of non-arteritic anterior ischemic optic neuropathy (NAION), history of temporary or permanent loss of vision, including unilateral loss of vision
  • Subject with a history of congenital QT prolongation
  • Subject with a penile anatomical abnormality (e.g., penile fibrosis, fractures, or Peyronie's disease) which, in the investigator's opinion, could significantly impair sexual performance. This will be based on subject's reported medical history (penile exam not required)
  • Subject with primary hypoactive sexual desire.
  • Subject with a spinal cord injury
  • +13 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of South Florida

Tampa, Florida, 33612, United States

RECRUITING

MeSH Terms

Conditions

Parkinson DiseaseErectile Dysfunction

Interventions

SelegilineTadalafil

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesGenital Diseases, MaleGenital DiseasesUrogenital DiseasesSexual Dysfunction, PhysiologicalMale Urogenital DiseasesSexual Dysfunctions, PsychologicalMental Disorders

Intervention Hierarchy (Ancestors)

PhenethylaminesEthylaminesAminesOrganic ChemicalsCarbolinesPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsIndole AlkaloidsIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds, 3-Ring

Study Officials

  • Theresa Zesiewicz, MD, FAAN

    University of South Florida

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jessica Shaw, MPH

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 22, 2014

First Posted

August 26, 2014

Study Start

September 1, 2014

Primary Completion

December 1, 2018

Study Completion

January 1, 2019

Last Updated

December 20, 2017

Record last verified: 2017-12

Locations