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Phosphodiesterase Inhibitor

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2. Taking a hard look at the evidence: Phosphodiesterase-5-inhibitors in erectile dysfunction

Taking a hard look at the evidence: Phosphodiesterase-5-inhibitors in erectile dysfunction Tools for Practice is proudly sponsored by the Alberta College of Family Physicians (ACFP). ACFP is a provincial, professional voluntary organization, representing more than 4,800 family physicians, family medicine residents, and medical students in Alberta. Established over sixty years ago, the ACFP strives for excellence in family practice through advocacy, continuing medical education and primary care (...) research. www.acfp.ca October 15, 2019 (en français) Don’t miss your last chance to pipe into the PEIP conference! Registration closes Friday, October 18 th . Click here to register. Taking a hard look at the evidence: Phosphodiesterase-5- inhibitors in erectile dysfunction Clinical Question: What is the efficacy and safety of phosphodiesterase-5-inhibitors (PDE5 inhibitors) for erectile dysfunction? Bottom Line: PDE5 inhibitors increase the proportion of successful sexual intercourse attempts to ~65

2019 Tools for Practice

3. Phosphodiesterase Type 5 Inhibitors for Penile Rehabilitation Post Radical Prostatectomy: A Review of Clinical Effectiveness and Guidelines

Phosphodiesterase Type 5 Inhibitors for Penile Rehabilitation Post Radical Prostatectomy: A Review of Clinical Effectiveness and Guidelines Phosphodiesterase Type 5 Inhibitors for Penile Rehabilitation Post Radical Prostatectomy: A Review of Clinical Effectiveness and Guidelines | CADTH.ca Find the information you need Phosphodiesterase Type 5 Inhibitors for Penile Rehabilitation Post Radical Prostatectomy: A Review of Clinical Effectiveness and Guidelines Phosphodiesterase Type 5 Inhibitors (...) for Penile Rehabilitation Post Radical Prostatectomy: A Review of Clinical Effectiveness and Guidelines Published on: August 24, 2017 Project Number: RC0915-000 Product Line: Research Type: Drug Report Type: Summary with Critical Appraisal Result type: Report Question What is the clinical effectiveness of phosphodiesterase type 5 inhibitors (PDE-5Is) for the treatment of adults requiring penile rehabilitation post radical prostatectomy? What are the evidence-based guidelines associated with penile

2017 Canadian Agency for Drugs and Technologies in Health - Rapid Review

4. Effect of cilostazol, a phosphodiesterase-3 inhibitor, on coronary artery stenosis and plaque characteristics in patients with type 2 diabetes: ESCAPE study (Abstract)

Effect of cilostazol, a phosphodiesterase-3 inhibitor, on coronary artery stenosis and plaque characteristics in patients with type 2 diabetes: ESCAPE study To perform a prospective study to evaluate the effect of cilostazol (CTZ) compared with aspirin (acetylsalicylic acid; ASA) in Korean people with diabetes and subclinical coronary atherosclerosis.A total of 100 people with diabetes who had mild to moderate coronary atherosclerosis, assessed by coronary computed tomographic angiography (CCTA

2019 EvidenceUpdates

5. Effects of Apremilast, an Oral Inhibitor of Phosphodiesterase 4, in a Randomized Trial of Patients With Active Ulcerative Colitis. Full Text available with Trip Pro

Effects of Apremilast, an Oral Inhibitor of Phosphodiesterase 4, in a Randomized Trial of Patients With Active Ulcerative Colitis. New oral therapeutic agents are needed for patients with ulcerative colitis (UC) who are unresponsive or intolerant to conventional therapy.We performed a double-blind, phase 2 trial of adults with active UC for 3 months or more who were naïve to biologic therapy or had been failed by, could not tolerate, or had contraindications to conventional therapies. The study

2020 Clinical Gastroenterology and Hepatology

6. A dose-ranging study of the inhaled dual phosphodiesterase 3 and 4 inhibitor ensifentrine in COPD. Full Text available with Trip Pro

A dose-ranging study of the inhaled dual phosphodiesterase 3 and 4 inhibitor ensifentrine in COPD. Many patients with chronic obstructive pulmonary disease (COPD) still experience daily symptoms, exacerbations, and accelerated lung function decline, even when receiving maximal combined treatment with inhaled long-acting bronchodilators and corticosteroids. Novel treatment options are needed for these patients. Phosphodiesterases (PDEs) are enzymes that impact a range of cellular functions (...) by modulating levels of cyclic nucleotides, and there is evidence to suggest that combined inhibition of PDE3 and PDE4 can have additive (or perhaps synergistic) effects. This study investigated the efficacy and safety of ensifentrine, a first-in-class dual inhibitor of PDE 3 and 4, in patients with COPD.This randomised, double-blind, placebo-controlled, parallel-group, dose-ranging study recruited patients with COPD, post-bronchodilator forced expiratory volume in 1 s (FEV1) 40-80% predicted and FEV1

2020 Respiratory research

7. Hemodynamic, Hormonal, and Renal Actions of Phosphodiesterase-9 Inhibition in Experimental Heart Failure. (Abstract)

Hemodynamic, Hormonal, and Renal Actions of Phosphodiesterase-9 Inhibition in Experimental Heart Failure. Phosphodiesterase-9 (PDE9) reduces natriuretic peptide (NP) signaling and may be involved in the pathophysiology of heart failure (HF).This study investigated for the first time the integrated hemodynamic, endocrine, and renal effects of phosphodiesterase-9 inhibition (PDE9-I).A total of 8 normal sheep and 8 sheep with pacing-induced HF received incremental intravenous boluses of PDE9-I (30 (...) : p < 0.001), and peripheral resistance (HF: p < 0.001), and transiently increased cardiac output at the top dose (Normal: p < 0.05; HF: p < 0.001). Inhibition of PDE9 had a negligible effect on circulating hormones at the lower doses, but post-high dose, acutely increased renin activity (Normal: p < 0.001; HF: p < 0.05), vasopressin (Normal: p < 0.001; HF: p < 0.01), and cyclic adenosine monophosphate (HF: p < 0.001). Plasma aldosterone increased briefly after high-dose PDE9-I in normal sheep

2019 Journal of the American College of Cardiology

8. A novel, highly potent and selective phosphodiesterase-9 inhibitor for the treatment of sickle cell disease. Full Text available with Trip Pro

. An alternative path to increasing cGMP levels in these cells is through the use of phosphodiesterase-9 inhibitors that selectively inhibit cGMP hydrolysis and increase cellular cGMP levels. We have developed a novel, potent and selective phosphodiesterase-9 inhibitor (IMR-687) specifically for the treatment of sickle cell disease. IMR-687 increased cGMP and fetal hemoglobin in erythroid K562 and UT-7 cells and increased the percentage of fetal hemoglobin positive erythroid cells generated in vitro using (...) A novel, highly potent and selective phosphodiesterase-9 inhibitor for the treatment of sickle cell disease. The most common treatment for patients with sickle cell disease is the chemotherapeutic, hydroxyurea, a therapy with pleiotropic effects, including increasing fetal hemoglobin in red blood cells and reducing adhesion of white blood cells to the vascular endothelium. Hydroxyurea has been proposed to mediate these effects through a mechanism of increasing cellular cGMP levels

2019 Haematologica

9. A Proof-of-Concept Study Evaluating the Phosphodiesterase 10A Inhibitor PF-02545920 in the Adjunctive Treatment of Suboptimally Controlled Symptoms of Schizophrenia. (Abstract)

A Proof-of-Concept Study Evaluating the Phosphodiesterase 10A Inhibitor PF-02545920 in the Adjunctive Treatment of Suboptimally Controlled Symptoms of Schizophrenia. Effective treatments for managing suboptimal clinical responses to current therapy for schizophrenia remain a critical unmet need. Phosphodiesterase 10A (PDE10A) inhibition represents a mechanistically novel approach to the treatment of schizophrenia, with preclinical studies suggesting improvements in partially responsive symptoms (...) could be achieved via adjunctive use of the PDE10A inhibitor PF-02545920. Therefore, the adjunctive safety, tolerability, pharmacokinetics, and efficacy of multiple repeat doses of PF-02545920 were investigated in a phase 1b study and subsequent phase 2 study.The phase 1b study randomized 37 adult patients with stable symptomatology and stable antipsychotic regimens within 3 cohorts. Study participants received ascending doses of PF-02545920 or placebo for 10 to 18 days. The phase 2 study randomized

2019 Journal of Clinical Psychopharmacology Controlled trial quality: uncertain

10. Real-world incidence of inflammatory bowel disease among patients with other chronic inflammatory diseases treated with interleukin-17a or phosphodiesterase 4 inhibitors. (Abstract)

Real-world incidence of inflammatory bowel disease among patients with other chronic inflammatory diseases treated with interleukin-17a or phosphodiesterase 4 inhibitors. Objectives: (1) To assess the real-world incidence of inflammatory bowel disease (IBD) in patients with or without other chronic inflammatory diseases (CIDs), and (2) to understand whether IBD incidence differs in CID patients receiving interleukin-17a signaling antagonists (anti-IL-17a) or phosphodiesterase 4 inhibitors

2019 Current medical research and opinion

11. Preimplant Phosphodiesterase-5 Inhibitor Use Is Associated With Higher Rates of Severe Early Right Heart Failure After Left Ventricular Assist Device Implantation. (Abstract)

Preimplant Phosphodiesterase-5 Inhibitor Use Is Associated With Higher Rates of Severe Early Right Heart Failure After Left Ventricular Assist Device Implantation. Background Early right heart failure (RHF) occurs commonly in left ventricular assist device (LVAD) recipients, and increased right ventricular (RV) afterload may contribute. Selective pulmonary vasodilators, like phosphodiesterase-5 inhibitors (PDE5i), are used off-label to reduce RV afterload before LVAD implantation

2019 Circulation. Heart failure

12. Phosphodiesterase 4 Inhibition as a Therapeutic Target for Alcoholic Liver Disease: From Bedside to Bench. (Abstract)

Phosphodiesterase 4 Inhibition as a Therapeutic Target for Alcoholic Liver Disease: From Bedside to Bench. Alcoholic liver disease (ALD) is a major cause of liver-related mortality. There is still no US Food and Drug Administration-approved therapy for ALD, and therefore, identifying therapeutic targets is needed. Our previous work demonstrated that ethanol exposure leads to up-regulation of cAMP-degrading phosphodiesterase 4 (PDE4) expression, which compromises normal cAMP signaling (...) the PDE4 inhibitor rolipram to the liver to avoid central nervous system side effects associated with this drug. Our results show that PDE4 inhibition significantly attenuates ethanol-induced hepatic steatosis and injury through multiple mechanisms, including reduced oxidative and endoplasmic reticulum stress both in vivo and in vitro. Conclusion: Increased PDE4 plays a pathogenic role in the development of ALD; hence, directed interventions aimed at inhibiting PDE4 might be an effective treatment

2019 Hepatology

13. Oral dosing of pentoxifylline, a pan-phosphodiesterase inhibitor restores bone mass and quality in osteopenic rabbits by an osteogenic mechanism: A comparative study with human parathyroid hormone. (Abstract)

Oral dosing of pentoxifylline, a pan-phosphodiesterase inhibitor restores bone mass and quality in osteopenic rabbits by an osteogenic mechanism: A comparative study with human parathyroid hormone. The non-selective phosphodiesterase inhibitor pentoxifylline (PTX) is used for the treatment of intermittent claudication due to artery occlusion. Previous studies in rodents have reported salutary effects of the intraperitoneal administration of PTX in segmental bone defect and fracture healing

2019 Bone

14. Difficult cases in heart failure: Bridge to beta blockade in severe heart failure: the use of phosphodiesterase inhibitors. (Abstract)

Difficult cases in heart failure: Bridge to beta blockade in severe heart failure: the use of phosphodiesterase inhibitors. The authors describe the use of milrinone as a bridge to beta blockade in a patient with severe heart failure. This case is clinically important because in patients with severe heart failure phosphodiesterase inhibitors, unlike beta agonists, will retain their positive inotropic and vasodilator effects in the presence of beta blockade and, in addition, these agents (...) will attenuate the negative inotropic side effects of beta blockers. Conversely, a beta blocker associated with a phosphodiesterase inhibitor will protect against myocyte loss and arrhythmias, may prevent sudden death, and will improve long-term symptoms and exercise tolerance. This combination is being investigated in a large, multicenter, double-blind, randomized trial of intravenous milrinone vs. placebo as a therapeutic tool to allow the initiation of carvedilol orally in patients hospitalized with class

2019 Congestive heart failure (Greenwich, Conn.) Controlled trial quality: uncertain

15. Phosphodiesterase type 5 inhibitors improve microvascular dysfunction markers in pulmonary arterial hypertension associated with congenital heart disease. (Abstract)

Phosphodiesterase type 5 inhibitors improve microvascular dysfunction markers in pulmonary arterial hypertension associated with congenital heart disease. Ideally, vasodilator therapies for pulmonary arterial hypertension (PAH) should have a favorable impact on markers of vascular dysfunction, in addition to their known effects on hemodynamics, cardiac function, and patient's physical capacity.We analyzed circulating (plasma) markers of endothelial and platelet activation/dysfunction (enzyme (...) transiently in the sildenafil group (P = .019). Both therapies were associated with improvement of the physical capacity (functional class and distance walked during the 6-minute test, P < .05), hematocrit and hemoglobin level (P < .05), and health-related quality of life (physical and mental components, P < .05).In PAH associated with congenital heart disease, phosphodiesterase 5 inhibitors seem to have beneficial actions at microcirculatory level, beyond the proposed effects as vasodilators.© 2018 Wiley

2019 Congenital heart disease Controlled trial quality: uncertain

16. Evaluation of the efficacy, safety and tolerability of orally administered BI 409306, a novel phosphodiesterase type 9 inhibitor, in two randomised controlled phase II studies in patients with prodromal and mild Alzheimer's disease. Full Text available with Trip Pro

Evaluation of the efficacy, safety and tolerability of orally administered BI 409306, a novel phosphodiesterase type 9 inhibitor, in two randomised controlled phase II studies in patients with prodromal and mild Alzheimer's disease. There are currently no approved treatments for the prodromal stage of Alzheimer's disease (AD). Approved symptomatic treatments for mild-to-moderate AD include acetylcholinesterase inhibitors and memantine, but more efficacious treatments are needed. BI 409306 (...) is a potent and selective phosphodiesterase 9 inhibitor assessed for the symptomatic treatment of AD. Efficacy and safety of BI 409306 was analysed in two phase II proof-of-concept clinical trials in cognitive impairment associated with prodromal AD (study 1) and mild AD (study 2).Two multicentre, double-blind, parallel-group, randomised controlled phase II studies were conducted (North America/Europe). Following study run-in, eligible subjects were randomised to one of four oral doses of BI 409306 (10-50

2019 Alzheimer's research & therapy Controlled trial quality: predicted high

17. Effects of intravenous phosphodiesterase inhibitors and corticosteroids on severe meconium aspiration syndrome. Full Text available with Trip Pro

Effects of intravenous phosphodiesterase inhibitors and corticosteroids on severe meconium aspiration syndrome. Meconium aspiration syndrome (MAS) is a major cause of severe respiratory failure in near- and full-term neonates. Alleviating inflammation is key to successfully treating severe MAS. Phosphodiesterase (PDE) inhibitors are known to play a role in airway smooth muscle relaxation and alveolar inflammation inhibition. This study aimed to investigate the effects of various intravenous (IV (...) occur with the phosphodiesterase type 4 (PDE4) inhibitor. Further investigations are required before using IV corticosteroids and PDE inhibitors in future clinical application.

2019 Journal of the Chinese Medical Association : JCMA Controlled trial quality: uncertain

18. Precautions and Monitoring of Patients Taking Phosphodiesterase Type 5 Inhibitors Who are at Risk of Increased Intraocular Pressure. (Abstract)

Precautions and Monitoring of Patients Taking Phosphodiesterase Type 5 Inhibitors Who are at Risk of Increased Intraocular Pressure. Phosphodiesterase type 5 inhibitors (PDE5Is) may increase intraocular pressure (IOP) by increasing blood flow to the ciliary body. Although clinical studies of changes in IOP after single and multiple doses of PDE5Is show variable results, most are limited by small sample sizes, absence of control groups and blinding, and use of normal patient volunteers who have

2019 Drugs & Aging

19. Effects of a micronutrient supplementation combined with a phosphodiesterase type 5 inhibitor on sperm quantitative and qualitative parameters, percentage of mature spermatozoa and sperm capacity to undergo hyperactivation: A randomised controlled trial. (Abstract)

Effects of a micronutrient supplementation combined with a phosphodiesterase type 5 inhibitor on sperm quantitative and qualitative parameters, percentage of mature spermatozoa and sperm capacity to undergo hyperactivation: A randomised controlled trial. The main objective of this study was to evaluate the effects of a micronutrient supplementation (MS) combined with avanafil on sperm function. Oligoasthenospermic men (n = 217) were treated daily for 90 days with either an MS (45 men, Group

2019 Andrologia Controlled trial quality: uncertain

20. Ultrastructural Study of Clitoral Cavernous Tissue and Clitoral Blood Flow From Type 1 Diabetic Premenopausal Women on Phosphodiesterase-5 Inhibitor. (Abstract)

Ultrastructural Study of Clitoral Cavernous Tissue and Clitoral Blood Flow From Type 1 Diabetic Premenopausal Women on Phosphodiesterase-5 Inhibitor. The effects of phosphodiesterase-type 5 (PDE5) inhibitors on the in vivo clitoral structure of women with diabetes have never been investigated.To study the in vivo structural and hemodynamic changes of the clitoris in premenopausal women with type 1 diabetes on PDE5 inhibitors.38 premenopausal women with type 1 diabetes aged 36 -46 years (...) From Type 1 Diabetic Premenopausal Women on Phosphodiesterase-5 Inhibitor. J Sex Med 2019;16:375-382.Copyright © 2019. Published by Elsevier Inc.

2019 Journal Of Sexual Medicine Controlled trial quality: uncertain

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