- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07824674
The Effect of Additive On-Demand Sildenafil vs. Dextrose Candy on Maximum Exercise Capacity in Pulmonary Arterial Hypertension (Pocket-PH)
The Effect of Additive On-Demand Sildenafil vs. Dextrose Candy on Maximum Exercise Capacity in Pulmonary Arterial Hypertension: A Randomized, Cross-Over Trial.
Przegląd badań
Status
Interwencja / Leczenie
Szczegółowy opis
This study is a prospective, randomized, cross-over trial evaluating the effects of additive 20 mg sildenafil versus placebo/sham dextrose candy on exercise capacity in patients with previously diagnosed pulmonary arterial hypertension (PAH).
PAH is a progressive and debilitating disease characterized by increased mean pulmonary arterial pressure (mPAP) and pulmonary vascular resistance (PVR), leading to right ventricular overload, and ultimately right heart failure. Despite advancements in pharmacological therapy, treatment options remain limited and optimizing individualized approaches to improve exercise capacity and manage symptom burden remains a challenge.
Phosphodiesterase type 5 inhibitors, such as sildenafil, are cornerstones of PAH treatment, enhancing pulmonary vasodilation and improving haemodynamics. While three times daily dosing is standard with three time 20-80mg daily. On-demand additive sildenafil use before exercise has not been studied, but as recent trials have shown that dosing up to three times 80mg is as safe as 20mg, there is a potential that additive therapy may be beneficial. Given sildenafil's rapid onset of action with peak effects after 30-120 minutes, it may offer acute functional benefits regarding maximum workload (Wmax) when administered shortly beforehand, in the terms of a "pill-in-the pocket" intake.
After providing informed consent, eligible participants (aged 18 - 80 years, with PAH diagnosed according to the ESC/ERS 2022/2019 guidelines) will be randomly assigned to receive either 20 mg sildenafil or dextrose candy (Dextro Energy). 45 minutes post-intake, they will undergo incremental spiroergometry (10-20 W increases) and right heart focused stress-echocardiography on a cycle ergometer until exhaustion. After a rest phase of 30 minutes, patients will perform CWRET at 75% of achieved Wmax until exhaustion. Then, after a washout period of minimum 24 hours up to 12 weeks, participants will cross over to the opposite treatment, repeating the same protocol.
In case of a beneficial result, our study could support the use of an additive pill-in-the-pocket therapy strategy which may allow treatment to be tailored to the individual activity demands of patients.
Typ studiów
Zapisy (Szacowany)
Faza
- Faza 2
- Faza 3
Kontakty i lokalizacje
Kontakt w sprawie studiów
- Nazwa: Arcangelo F Carta, MD
- Numer telefonu: +41 44 255 22 20
- E-mail: arcangelo.carta@usz.ch
Kopia zapasowa kontaktu do badania
- Nazwa: Silvia Ulrich, Prof. MD
- Numer telefonu: +41 44 255 22 21
- E-mail: silvia.ulrich@usz.ch
Lokalizacje studiów
-
-
Canton of Zurich
-
Zurich, Canton of Zurich, Szwajcaria, 8091
- Rekrutacyjny
- University Hospital of Zurich, Department of Pulmonology
-
Kontakt:
- Arcangelo F Carta, Dr. med.
- Numer telefonu: +41 44 255 22 20
- E-mail: arcangelo.carta@usz.ch
-
-
Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Opis
Inclusion Criteria:
- Signed Informed consent
- Age 18 - 80 years (both sexes)
- Pulmonary hypertension (PH) class I (PAH) previously diagnosed according to ESC/ERS 2022/2019 guidelines (mPAP ≥ 20 mmHg, PVR ≥ 2 WU, PAWP ≤ 15 mmHg) during diagnostic right-heart catheterization.
- Stable condition, on the same PH-medication for >4 weeks
Exclusion Criteria:
- Severe resting hypoxia (PaO2 <7.3 kPa)
- Moderate-to-severe chronic obstructive or restrictive pulmonary disease (FEV1 ≤ 60% predicted, FVC ≤ 60% predicted)
- Women with known pregnancy or breast feeding
- Other clinically significant concomitant disease states (e.g., severe renal or hepatic disease, unstable cardiovascular disease, etc.)
Concurrent medication with:
- Nitric oxide donors (molsidomine, nicrorandil, etc.)
- Soluble guanylate cyclase stimulators (riociguat)
- Potent CYP3A4 inhibitors (azoles, clarithromycin, protease inhibitors)
- History of anterior ischemic optic neuropathy or hereditary retinal disease
- Participation in another study with investigational drug with potential influence the study data within the 30 days preceding and during the present study.
- Known allergies or hypersensitivity to sildenafil 20mg (Revatio 20mg) or dextrose candy (Dextroenergy) including any of its components
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Leczenie
- Przydział: Randomizowane
- Model interwencyjny: Zadanie krzyżowe
- Maskowanie: Pojedynczy
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
|
Inny: Intervention Order A
Group A will receive the active comparator first (Sildenafil 20mg) in accordance with the Cross-Over trial design.
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Administration of Dextrose Candy by mouth as a tablet.
Inne nazwy:
Administration of Sildenafil 20mg by mouth as a tablet.
Inne nazwy:
|
|
Inny: Intervention Order B
Group B will receive the placebo comparator first (Dextrose Candy) in accordance with the Cross-Over trial design.
|
Administration of Dextrose Candy by mouth as a tablet.
Inne nazwy:
Administration of Sildenafil 20mg by mouth as a tablet.
Inne nazwy:
|
Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Maximum workload (Wmax)
Ramy czasowe: Within 1 - 90 days
|
The difference in maximum workload (Wmax) attained during maximum spiroergometry 45 minutes after treatment with Sildenafil 20mg (Revatio 20mg) versus dextrose candy (Dextro Energy).
|
Within 1 - 90 days
|
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Time to Exhaustion (Tmax)
Ramy czasowe: Within 1 - 90 days
|
Difference in Time to Exhaustion (Tmax)attained during CWRET after treatment with Sildenafil 20mg (Revatio 20mg) versus dextrose candy (Dextro Energy)
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET, CWRET): Oxygen Saturation (SpO2)
Ramy czasowe: Within 1 - 90 days
|
Change in Oxygen Saturation (SpO2) during CPET / CWRET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Stroke Volume (SV)
Ramy czasowe: Within 1 - 90 days
|
Change in Stroke Volume (SV) during CPET
|
Within 1 - 90 days
|
|
Arterial blood gases: Arterial Partial Pressure of Oxygen (PaO2)
Ramy czasowe: Within 1 - 90 days
|
Change in Arterial Partial Pressure of Oxygen (PaO2) during CPET.
|
Within 1 - 90 days
|
|
Borg CR10 (Borg Category-Ratio 10 Scale)
Ramy czasowe: Within 1 - 90 days
|
Changes in Borg CR10 questionnaire (Borg Category-Ratio 10 Scale) after CPET / CWRET (0-10, higher values indicate more severe symptoms)
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Tricuspid Regurgitation Pressure Gradient (TRPG)
Ramy czasowe: Within 1 - 90 days
|
Change in Tricuspid Regurgitation Pressure Gradient (TRPG) during CPET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Blood Pressure (BP)
Ramy czasowe: Within 1 - 90 days
|
Change in Blood Pressure (BP) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Heart Rate (HR)
Ramy czasowe: Within 1 - 90 days
|
Change in Heart Rate (HR) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Rate Pressure Product (RPP)
Ramy czasowe: Within 1 - 90 days
|
Change in Rate Pressure Product (RPP) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Maximum Uptake of Oxygen (V'O2max)
Ramy czasowe: Within 1 - 90 days
|
Change Maximum Uptake of Oxygen (V'O2max) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Maximum Carbon Dioxide Production (V'CO2max)
Ramy czasowe: Within 1 - 90 days
|
Change in Maximum Carbon Dioxide Production (V'CO2max) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Maximum Minute Ventilation (V'Emax)
Ramy czasowe: Within 1 - 90 days
|
Change in Maximum Minute Ventilation (V'Emax) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Maximum Ventilatory Equivalent for Oxygen (V'E/VO2)
Ramy czasowe: Within 1 - 90 days
|
Change in Maximum Ventilatory Equivalent for Oxygen (V'E/VO2) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Maximum Ventilatory Equivalent for Carbon Dioxide (V'E/VCO2)
Ramy czasowe: Within 1 - 90 days
|
Change in Maximum Ventilatory Equivalent for Carbon Dioxide (V'E/VCO2) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Breathing Frequency (BF)
Ramy czasowe: Within 1 - 90 days
|
Change in Breathing Frequency (BF) during CPET / CWRET
|
Within 1 - 90 days
|
|
Cardiometabolic parameters (CPET / CWRET): Breathing Reserve (BR)
Ramy czasowe: Within 1 - 90 days
|
Change in Breathing Reserve (BR) during CPET / CWRET
|
Within 1 - 90 days
|
|
Arterial blood gases: Arterial Partial Pressure of Carbon Dioxide (PaCO2)
Ramy czasowe: Within 1 - 90 days
|
Change in Arterial Partial Pressure of Carbon Dioxide (PaCO2) during CPET.
|
Within 1 - 90 days
|
|
Arterial blood gases: Bicarbonate (HCO3-)
Ramy czasowe: Within 1 - 90 days
|
Change in Bicarbonate HCO3- before and after CPET.
|
Within 1 - 90 days
|
|
Arterial blood gases: Arterial Oxygen Saturation (SaO2)
Ramy czasowe: Within 1 - 90 days
|
Change in Arterial Oxygen Saturation (SaO2) before and after CPET.
|
Within 1 - 90 days
|
|
Arterial blood gases: Base Excess (BE)
Ramy czasowe: Within 1 - 90 days
|
Change in Base Excess (BE) before and after CPET.
|
Within 1 - 90 days
|
|
Arterial blood gases: Lactate (lac)
Ramy czasowe: Within 1 - 90 days
|
Change in Lactate (lac) concentration before and after CPET.
|
Within 1 - 90 days
|
|
Arterial blood gases: Hemoglobin (Hb)
Ramy czasowe: Within 1 - 90 days
|
Change in Hemoglobin (Hb) before and after CPET.
|
Within 1 - 90 days
|
|
Arterial blood gases: Hematocrit (Hct)
Ramy czasowe: Within 1 - 90 days
|
Change in Hematocrit (Hct) before and after CPET.
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Tricuspid Regurgitation Velocity (TRV)
Ramy czasowe: Within 1 - 90 days
|
Change in Tricuspid Regurgitation Velocity (TRV) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Right Atrial Pressure (RAP)
Ramy czasowe: Within 1 - 90 days
|
Change in Right Atrial Pressure (RAP) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Systolic Pulmonary Arterial Pressure (sPAP)
Ramy czasowe: Within 1 - 90 days
|
Change in Systolic Pulmonary Arterial Pressure (sPAP) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Fractional Area Change (FAC)
Ramy czasowe: Within 1 - 90 days
|
Change in Fractional Area Change (FAC) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Tricuspid Annular Plane Systolic Excursion (TAPSE)
Ramy czasowe: Within 1 - 90 days
|
Change in Tricuspid Annular Plane Systolic Excursion (TAPSE) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Ratio of Tricuspid Regurgitation Pressure Gradient to Cardiac Output (TRPG/CO)
Ramy czasowe: Within 1 - 90 days
|
Change in Ratio of Tricuspid Regurgitation Pressure Gradient to Cardiac Output (TRPG/CO) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Cardiac Output (CO)
Ramy czasowe: Within 1 - 90 days
|
Change in Cardiac Output (CO) during CPET
|
Within 1 - 90 days
|
|
Focused Stress-Echocardiography (Right Heart): Pulmonary Vascular Resistance (PVR)
Ramy czasowe: Within 1 - 90 days
|
Change in Pulmonary Vascular Resistance (PVR) during CPET
|
Within 1 - 90 days
|
Inne miary wyników
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Safety Profile / (S)AEs
Ramy czasowe: (S)AEs will be assessed immediately after each intervention (A or B) during the corresponding study visits (1 and 2).
|
Safety and (S)AEs of each Intervention [sildenafil 20mg (Revatio 20mg) and dextrose candy (Dextro Energy)] will be assessed.
|
(S)AEs will be assessed immediately after each intervention (A or B) during the corresponding study visits (1 and 2).
|
Współpracownicy i badacze
Sponsor
Śledczy
- Główny śledczy: Silvia Ulrich, Prof. Dr. med., University of Zurich
- Główny śledczy: Arcangelo F Carta, Dr. med., University of Zurich
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Szacowany)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
- Choroby Układu Oddechowego
- Choroby płuc
- Nadciśnienie, Płuc
- Nadciśnienie tętnicze płuc
- Związki siarki
- Organiczne chemikalia
- Związki heterocykliczne, 1-ring
- Związki heterocykliczne
- Związki heterocykliczne, 2-ring
- Związki heterocykliczne, sterowanie stopieniem
- Węglowodany
- Amides
- Puryny
- Cukry
- Sulfonamidy
- Sulfony
- Piperaziny
- Heksozy
- Monosacharydy
- Cytrynian sildenafilu
- Glukoza
Inne numery identyfikacyjne badania
- KEK-ZH-Nr. 2025-02557
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Opis planu IPD
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
produkt wyprodukowany i wyeksportowany z USA
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