Erectile DysfunctionPhase 3NCT00229073
A Study of the Effectiveness and Safety of Dapoxetine in the Treatment of Men With Premature Ejaculation
A Phase 3 study testing dapoxetine in people with Erectile Dysfunction, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..
Trial summary
The primary purpose of the study is to demonstrate that dapoxetine can prolong intravaginal ejaculatory latency time (IELT) compared with placebo in men with premature ejaculation (PE). Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Erectile Dysfunction
- What is being tested?
- dapoxetine
- How many people
- 1,116 participants
- Where
- No sites listed yet
- Study dates
- Dec 2004to Oct 2006
- Phase
- Phase 3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patient is in a stable, monogamous sexual relationship with the same woman for at least 6 months and plans to maintain this relationship for the duration of the study
- diagnosis of premature ejaculation (PE) according to the criteria of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) for at least 6 months before study initiation
- history of intravaginal ejaculatory latency time (IELT) of <2 minutes in at least 3 out of 4 events
- good general health
- patient's partner must have a negative urine pregnancy test at time of screening
Who cannot join
- Not taken dapoxetine or participated in another study investigating pharmacologic treatment of PE within the last 3 months
- no history of any medical events that are associated with the development of PE
- not taken another investigational drug within 1 month, or used an experimental medical device within 6 months, of study initiation
- no positive diagnosis of depressive or anxiety disorder, manic episode, panic disorder, obsessive-compulsive disorder, posttraumatic stress disorder, alcohol abuse and dependence, schizophrenia, or other psychotic disorders
- no known allergy or hypersensitivity to selective serotonin reuptake inhibitors (SSRIs) or serotonin norepinephrine reuptake inhibitors (SNRIs)
About this study
Official title: A Placebo-Controlled, Double-Blind, Randomized, Parallel-Group Study Of The Efficacy And Safety Of Dapoxetine In The Treatment Of Subjects With Premature Ejaculation
The primary purpose of the study is to demonstrate that dapoxetine can prolong intravaginal ejaculatory latency time (IELT) compared with placebo in men with premature ejaculation (PE).
Read the detailed description
Premature ejaculation (PE) is a form of male sexual dysfunction. An objective measurement of PE in clinical studies is the intravaginal ejaculatory latency time (IELT). This is a multicenter, placebo-controlled, double-blind, randomized, parallel-group study in men with PE. The study will consist 3 phases: pre-randomization phase (a screening visit and a 4-week baseline period); 24-week double-blind treatment phase during which patients will receive dapoxetine or placebo for use on an "as-needed" basis; and, 1-week double-blind withdrawal phase (dapoxetine or placebo) with a post-study telephone contact approximately 2 weeks after the end of treatment. The total duration of the study is approximately 31 weeks. Assessments of effectiveness include the average intravaginal ejaculatory latency time, as measured by stopwatch during sexual intercourse, during the treatment period; control over ejaculation, satisfaction with sexual intercourse, and severity of symptoms, based on questions asked at monthly intervals through the treatment phase. Safety assessments include the incidence, severity, and type of adverse events throughout treatment and follow up (Week 27), as well as laboratory tests and questionnaires to monitor possible changes in mood, anxiety, motor responses, and sexual function at specified times during the study. The study hypothesis is that treatment for 24 weeks with dapoxetine prolongs intravaginal ejaculatory latency time, compared with placebo, in men with PE. Oral tablets of dapoxetine (30 milligrams[mg] or 60mg) or placebo taken as needed during 24 weeks of treatment. No more than 1 dose within a 24-hour period.
- Conditions
- Erectile Dysfunction
- Being tested
- dapoxetine
- Keywords
- dapoxetine, premature ejaculation, ejaculation, sexual dysfunction, orgasmic disorder, sexual intercourse
- Medical subject headings
- Erectile Dysfunction, Premature Ejaculation, Sexual Dysfunction, Physiological, Sexual Dysfunctions, Psychological, Coitus
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
dapoxetineDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
Average Intravaginal ejaculatory latency time (IELT), as measured by stopwatch, during sexual intercourse, at the end of the treatment period (week 24)
Secondary outcomes (1)
Control over ejaculation, satisfaction with sexual intercourse, and severity of symptom impressions, based on questions asked at monthly intervals through Week 24; incidence, severity, and type of adverse events throughout study and follow up (Week 27)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Sep 2005 (estimated)
- Study startDec 2004
- Study completionOct 2006
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Erectile DysfunctionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Enrolment
- 1,116 participants (actual)
Sponsor and investigators
- Lead sponsor
- Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial, Study director, Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00229073
- Sponsor's protocol ID
- CR004231
- Status last verified
- Mar 2010
- First submitted
- 27 Sep 2005
- Last updated
- 8 Jun 2011
- Results posted
- No
Publications
Buvat J, Tesfaye F, Rothman M, Rivas DA, Giuliano F. Dapoxetine for the treatment of premature ejaculation: results from a randomized, double-blind, placebo-controlled phase 3 trial in 22 countries. Eur Urol. 2009 Apr;55(4):957-67. doi: 10.1016/j.eururo.2009.01.025. Epub 2009 Jan 21.
PubMed 19195772McMahon CG, Althof SE, Kaufman JM, Buvat J, Levine SB, Aquilina JW, Tesfaye F, Rothman M, Rivas DA, Porst H. Efficacy and safety of dapoxetine for the treatment of premature ejaculation: integrated analysis of results from five phase 3 trials. J Sex Med. 2011 Feb;8(2):524-39. doi: 10.1111/j.1743-6109.2010.02097.x. Epub 2010 Nov 8.
PubMed 21059176Porst H, McMahon CG, Althof SE, Sharlip I, Bull S, Aquilina JW, Tesfaye F, Rivas DA. Baseline characteristics and treatment outcomes for men with acquired or lifelong premature ejaculation with mild or no erectile dysfunction: integrated analyses of two phase 3 dapoxetine trials. J Sex Med. 2010 Jun;7(6):2231-2242. doi: 10.1111/j.1743-6109.2010.01820.x. Epub 2010 Apr 19.
PubMed 20412423Althof SE, Brock GB, Rosen RC, Rowland DL, Aquilina JW, Rothman M, Tesfaye F, Bull S. Validity of the patient-reported Clinical Global Impression of Change as a measure of treatment response in men with premature ejaculation. J Sex Med. 2010 Jun;7(6):2243-2252. doi: 10.1111/j.1743-6109.2010.01793.x. Epub 2010 Mar 30.
PubMed 20367770
Study at a glance
From the registry record, last updated by the sponsor on 8 Jun 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Placebo-Controlled, Double-Blind, Randomized, Parallel-Group Study Of The Efficacy And Safety Of Dapoxetine In The Treatment Of Subjects With Premature Ejaculation
- ClinicalTrials.gov ID
- NCT00229073
- Acronym / sponsor ID
- CR004231
- Conditions
- Erectile Dysfunction
- Keywords
- dapoxetine, premature ejaculation, ejaculation, sexual dysfunction, orgasmic disorder, sexual intercourse
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,116 participants (actual)
- Lead sponsor
- Johnson & Johnson Pharmaceutical Research & Development, L.L.C.Industry (pharma, biotech, devices)
- Study start
- Dec 2004
- Study completion
- Oct 2006 (actual)
- First posted
- 29 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary purpose of the study is to demonstrate that dapoxetine can prolong intravaginal ejaculatory latency time (IELT) compared with placebo in men with premature ejaculation (PE).
Detailed description
Premature ejaculation (PE) is a form of male sexual dysfunction. An objective measurement of PE in clinical studies is the intravaginal ejaculatory latency time (IELT). This is a multicenter, placebo-controlled, double-blind, randomized, parallel-group study in men with PE. The study will consist 3 phases: pre-randomization phase (a screening visit and a 4-week baseline period); 24-week double-blind treatment phase during which patients will receive dapoxetine or placebo for use on an "as-needed" basis; and, 1-week double-blind withdrawal phase (dapoxetine or placebo) with a post-study telephone contact approximately 2 weeks after the end of treatment. The total duration of the study is approximately 31 weeks. Assessments of effectiveness include the average intravaginal ejaculatory latency time, as measured by stopwatch during sexual intercourse, during the treatment period; control over ejaculation, satisfaction with sexual intercourse, and severity of symptoms, based on questions asked at monthly intervals through the treatment phase. Safety assessments include the incidence, severity, and type of adverse events throughout treatment and follow up (Week 27), as well as laboratory tests and questionnaires to monitor possible changes in mood, anxiety, motor responses, and sexual function at specified times during the study. The study hypothesis is that treatment for 24 weeks with dapoxetine prolongs intravaginal ejaculatory latency time, compared with placebo, in men with PE. Oral tablets of dapoxetine (30 milligrams[mg] or 60mg) or placebo taken as needed during 24 weeks of treatment. No more than 1 dose within a 24-hour period.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Patient is in a stable, monogamous sexual relationship with the same woman for at least 6 months and plans to maintain this relationship for the duration of the study
- diagnosis of premature ejaculation (PE) according to the criteria of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) for at least 6 months before study initiation
- history of intravaginal ejaculatory latency time (IELT) of <2 minutes in at least 3 out of 4 events
- good general health
- patient's partner must have a negative urine pregnancy test at time of screening
Key exclusion criteria (5 listed)
- Not taken dapoxetine or participated in another study investigating pharmacologic treatment of PE within the last 3 months
- no history of any medical events that are associated with the development of PE
- not taken another investigational drug within 1 month, or used an experimental medical device within 6 months, of study initiation
- no positive diagnosis of depressive or anxiety disorder, manic episode, panic disorder, obsessive-compulsive disorder, posttraumatic stress disorder, alcohol abuse and dependence, schizophrenia, or other psychotic disorders
- no known allergy or hypersensitivity to selective serotonin reuptake inhibitors (SSRIs) or serotonin norepinephrine reuptake inhibitors (SNRIs)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| dapoxetine | Drug | – |
Primary outcome
Average Intravaginal ejaculatory latency time (IELT), as measured by stopwatch, during sexual intercourse, at the end of the treatment period (week 24)
1 secondary outcome
Control over ejaculation, satisfaction with sexual intercourse, and severity of symptom impressions, based on questions asked at monthly intervals through Week 24; incidence, severity, and type of adverse events throughout study and follow up (Week 27)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jun 2011.
- Results publication: PubMed 19195772Buvat J, Tesfaye F, Rothman M, Rivas DA, Giuliano F. Dapoxetine for the treatment of premature ejaculation: results from a randomized, double-blind, placebo-controlled phase 3 trial in 22 countries. Eur Urol. 2009 Apr;55(4):957-67. doi: 10.1016/j.eururo.2009.01.025. Epub 2009 Jan 21.
- Derived from this study: PubMed 21059176McMahon CG, Althof SE, Kaufman JM, Buvat J, Levine SB, Aquilina JW, Tesfaye F, Rothman M, Rivas DA, Porst H. Efficacy and safety of dapoxetine for the treatment of premature ejaculation: integrated analysis of results from five phase 3 trials. J Sex Med. 2011 Feb;8(2):524-39. doi: 10.1111/j.1743-6109.2010.02097.x. Epub 2010 Nov 8.
- Derived from this study: PubMed 20412423Porst H, McMahon CG, Althof SE, Sharlip I, Bull S, Aquilina JW, Tesfaye F, Rivas DA. Baseline characteristics and treatment outcomes for men with acquired or lifelong premature ejaculation with mild or no erectile dysfunction: integrated analyses of two phase 3 dapoxetine trials. J Sex Med. 2010 Jun;7(6):2231-2242. doi: 10.1111/j.1743-6109.2010.01820.x. Epub 2010 Apr 19.
- Derived from this study: PubMed 20367770Althof SE, Brock GB, Rosen RC, Rowland DL, Aquilina JW, Rothman M, Tesfaye F, Bull S. Validity of the patient-reported Clinical Global Impression of Change as a measure of treatment response in men with premature ejaculation. J Sex Med. 2010 Jun;7(6):2243-2252. doi: 10.1111/j.1743-6109.2010.01793.x. Epub 2010 Mar 30.
- A Placebo-Controlled, Double-Blind, Randomized, Parallel-Group Study of the Efficacy and Safety of Dapoxetine in the Treatment of Subjects With Premature EjaculationLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial study director
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing dapoxetine in people with Erectile Dysfunction, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 8 Jun 2011. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Average Intravaginal ejaculatory latency time (IELT), as measured by stopwatch, during sexual intercourse, at the end of the treatment period (week 24). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00229073, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2011.