A Single-Arm, Dose Escalation of an Intraurethral Alprostadil Paste for Erectile Dysfunction
Phase 2 Clinical Trial of ST-04 Intraurethral Paste for Erectile Dysfunction
This is a single arm dose escalation trial of a mucoadhesive intraurethral polymer suspension of alprostadil (ST-04) and will investigate the efficacy of 3 dose levels of ST-04 in adult males with a clinical diagnosis of Erectile Dysfunction (ED). This study aims to determine if ST-04, with or without sildenafil, will improve erectile function (EF) compared to baseline.
Participants in this study will receive ST-04, a new formulation containing the vasodilator, alprostadil which is known to be an effective drug in treating erectile dysfunction. ST-04 will be dispersed along the urethra, forming a hydrogel which adheres to the lining of the urethra with the goal of penile tumescence and erection. Participants may receive up to 3 dose level escalations of ST-04 over a 12-week period, for a total of up to 11 administrations of ST-04. Dose escalation may also be done with and without sildenafil.
調査の概要
研究の種類
入学 (推定)
段階
- フェーズ2
連絡先と場所
研究場所
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British Columbia
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Vancouver、British Columbia、カナダ、V5Z1M9
- 募集
- Vancouver Prostate Centre
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主任研究者:
- Ryan Flannigan, MD
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コンタクト:
- Genevive - Clinical Trials Coordinator
- 電話番号:67898 604-875-4111
- メール:clinicaltrials@prostatecentre.com
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-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Have had a confirmed clinical diagnosis of ED for more than three months based upon IIEF
- Have failed PDE5 inhibitor therapy (inability to achieve an erection with adequate rigidity to allow penetrative sex)
- Ability to take oral medication (sildenafil) and be willing to adhere to the study intervention regimen
- Engaged in heterosexual relationship with partner for a minimum of 6 months
Exclusion Criteria:
- History of unstable medical or psychiatric condition that, in the opinion of the principal investigator, could impact the patient's ability to complete the study investigations or protocol.
- Spinal cord injury, or penile anatomical abnormalities
- Cardiovascular conditions that prevent sexual activity (NYHA Class II or higher, any angina, or uncontrolled CHF or severe coronary artery disease)
- History of myocardial infarction, stroke, or life-threatening arrhythmia within 6 months prior to enrollment into the study
- Use of anti-androgens, or oral or injectable androgens
- Documented hypotension or known orthostatic hypotension
- Use of oral, topical or sublingual nitrates within 3 months prior to enrollment into the study
- Hepatic (Child-Pugh Class C) or renal failure (eGFR < 30)
- Inadequate response to intracavernosal injection therapy previously
- Peyronie's disease or Meatal stenosis
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的:Single-Arm Dose Escalation
Dose Level 1 is 500 μg of ST-04; Dose Level 2 is 1000 μg of ST-04 with or without Sildenafil; Dose Level 3 is 1500 μg of ST-04 with or without Sildenafil.
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ST-04 consists of an alprostadil polymer suspension designed for intraurethral application
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change from Baseline in the Erectile Function Domain of the IIEF Questionnaire
時間枠:From baseline to 1 month after start of the last dose level (Week 4, 8, 12 respectively)
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The IIEF is a validated questionnaire assessing erectile function, with total scores ranging from 5 to 25; higher scores indicate better erectile function
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From baseline to 1 month after start of the last dose level (Week 4, 8, 12 respectively)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change from Baseline in the Erectile Hardness Scale (EHS)
時間枠:From baseline to the end of treatment at week 4, 8 or 12 respectively
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The EHS is a self-reported assessment of penile hardness on a scale of 0 (no engorgement) to 4 (complete rigidity).
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From baseline to the end of treatment at week 4, 8 or 12 respectively
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Change from Baseline in the Sexual Encounter Profile (SEP)
時間枠:From baseline to the end of treatment at week 4, 8 or 12 respectively
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SEP is a log diary completed after each sexual attempt, providing information as to whether the erection was hard enough to penetrate (SEP 2), or whether it was maintained for completion (SEP 3).
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From baseline to the end of treatment at week 4, 8 or 12 respectively
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Percentage of Uses per Participant of ST-04 which Led to the Onset of Erection within up to 30 minutes of Application per Number of Intercourse Attempts
時間枠:From baseline to the end of treatment at week 4, 8 or 12 respectively
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Percentage of participants using ST-04 that could achieve an erection and/or penetrative intercourse within 30 minutes of application per number of intercourse attempts.
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From baseline to the end of treatment at week 4, 8 or 12 respectively
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Incidence and Severity of Adverse events
時間枠:From baseline to the end of treatment at week 4, 8 or 12 respectively
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Adverse events will be recorded at each follow-up visit and classified by type, severity, and relationship to the intervention.
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From baseline to the end of treatment at week 4, 8 or 12 respectively
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協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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