NCT00468650

Brief Summary

A multicenter open label study to assess the efficacy of sildenafil rapid dose titration to 100 mg in men with erectile dysfunction, based on the Erectile Function (EF) domain score of the International Index of Erectile Function (IIEF) questionnaire.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
117

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Jun 2007

Shorter than P25 for phase_4

Geographic Reach
1 country

9 active sites

Status
completed

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

May 1, 2007

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 3, 2007

Completed
29 days until next milestone

Study Start

First participant enrolled

June 1, 2007

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2008

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

March 16, 2009

Completed
Last Updated

February 18, 2021

Status Verified

January 1, 2021

Enrollment Period

8 months

First QC Date

May 1, 2007

Results QC Date

February 12, 2009

Last Update Submit

January 28, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • International Index of Erectile Function (IIEF), Erectile Function (EF) Domain Score- Change From Baseline to Week 6 Last Observation Carried Forward (LOCF)

    IIEF is a self-administered scale designed to assess erectile functioning: includes 15 questions on 5 relevant domains of male sexual function; one is erectile function (EF). IIEF-EF Domain: sum of scores for Questions 1, 2, 3, 4, 5 \& 15 from IIEF. Score range: 0 to 5 (Q1 to Q5), 1 to 5 (Q15); total 1 to 30. Higher score indicates better outcome.

    Week 6 LOCF

Secondary Outcomes (40)

  • International Index of Erectile Function (IIEF), Erectile Function (EF) Domain Score - Change From Baseline at Weeks 2, 4 and 6

    Week 2, Week 4 and Week 6

  • International Index of Erectile Function (IIEF), Erectile Function (EF) Domain Score- Change From Week 2

    Week 4 and Week 6

  • International Index of Erectile Function (IIEF), Orgasmic Function Domain- Change From Baseline

    Week 2, Week 4 and Week 6

  • International Index of Erectile Function (IIEF), Orgasmic Function Domain- Change From Week 2

    Week 4 and Week 6

  • International Index of Erectile Function (IIEF), Sexual Desire Domain Score- Change From Baseline

    Week 2, Week 4 and Week 6

  • +35 more secondary outcomes

Study Arms (1)

Open label

ACTIVE COMPARATOR

Eligible patients fulfilling all inclusion/exclusion criteria will be assigned at Visit 2/Week 0 (Baseline) to receive Patrex® 50 mg as needed (PRN) during the first two weeks, and,thereafter, at Visit 3/Week 2, all enrolled subjects will be up titrated to Patrex® 100 mg PRN for the following four weeks.

Drug: sildenafil citrate

Interventions

Tablets, 50mg and 100mg , Medication will be taken orally with a glass of water approximately one hour (30 min to 4 hours) before sexual activity. Subjects are to take one dose in any calendar day.Eligible patients fulfilling all inclusion/exclusion criteria will be assigned at Visit 2/Week 0 (Baseline) to receive sildenafil 50 mg as needed (PRN) during the first two weeks, and,thereafter, at Visit 3/Week 2, all enrolled subjects will be up titrated to sildenafil 100 mg PRN for the following four weeks.

Open label

Eligibility Criteria

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

You may qualify if:

  • Documented Clinical diagnosis of Erectile Dysfunction (ED) by International Index of Erectile Function (IIEF) Erectile Function (EF) Domain score less than or equal to 25.
  • Subjects must be in a stable relationship

You may not qualify if:

  • Subject with resting sitting hypotension (BP \<90/50 mmHg) or hypertension (BP\>170/110 mmHg) and orthostatic hypotension.
  • Subjects receiving any PDE (Phosphodiesterase)-5 inhibitors within 4 weeks prior to the date of screening.
  • Subjects with severe hepatic impairment, a known history of retinitis pigmentare.
  • Subjects with significant cardiovascular disease in the last 3 months (per medical history.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Pfizer Investigational Site

México, D.F., 11520, Mexico

Location

Pfizer Investigational Site

México, D.F., 11850, Mexico

Location

Pfizer Investigational Site

Naucalpan, Edo. de México, 53100, Mexico

Location

Pfizer Investigational Site

Zapopan, Jalisco, 45040, Mexico

Location

Pfizer Investigational Site

Zapopan, Jalisco, 45200, Mexico

Location

Pfizer Investigational Site

Mexico City, Mexico City, 11850, Mexico

Location

Pfizer Investigational Site

Aguascalientes, 20000, Mexico

Location

Pfizer Investigational Site

Durango, 34300, Mexico

Location

Pfizer Investigational Site

Naucalpan Edo. de Mexico, Mexico

Location

Related Links

MeSH Terms

Conditions

Erectile Dysfunction

Interventions

Sildenafil Citrate

Condition Hierarchy (Ancestors)

Genital Diseases, MaleGenital DiseasesUrogenital DiseasesSexual Dysfunction, PhysiologicalMale Urogenital DiseasesSexual Dysfunctions, PsychologicalMental Disorders

Intervention Hierarchy (Ancestors)

SulfonamidesAmidesOrganic ChemicalsSulfonesSulfur CompoundsPiperazinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Results Point of Contact

Title
Pfizer ClinicalTrials.gov Call Center
Organization
Pfizer, Inc.

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 1, 2007

First Posted

May 3, 2007

Study Start

June 1, 2007

Primary Completion

February 1, 2008

Study Completion

February 1, 2008

Last Updated

February 18, 2021

Results First Posted

March 16, 2009

Record last verified: 2021-01

Locations