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1.
High Blood Press Cardiovasc Prev ; 31(3): 309-320, 2024 May.
Article in English | MEDLINE | ID: mdl-38825650

ABSTRACT

INTRODUCTION: Hypertension is the main risk factor for cardiovascular diseases (CVD). Notably, only about half of hypertensive patients manage to achieve the recommended blood pressure (BP) control. Main reasons for the persistence of uncontrolled BP during treatment are lack of compliance on the patients' side, and therapeutic inertia on physicians' side. METHODS: During the global BP screening campaign "May Measure Month" (MMM) (May 1st to July 31st, 2022), a nationwide, cross-sectional, opportunistic study endorsed by the Italian Society of Hypertension was conducted on volunteer adults ≥ 18 years to raise awareness of the health issues surrounding high BP. A questionnaire on demographic/clinical features and questions on the use of fixed-dose single-pills for the treatment of hypertension was administered. BP was measured with standard procedures. RESULTS: A total of 1612 participants (mean age 60.0±15.41 years; 44.7% women) were enrolled. Their mean BP was 128.5±18.1/77.1±10.4 mmHg. About half of participants were sedentary, or overweight/obese, or hypertensive. 55.5% individuals with complete BP assessment had uncontrolled hypertension. Most were not on a fixed-dose combination of antihypertensive drugs and did not regularly measure BP at home. Self-reported adherence to BP medications was similar between individuals with controlled and uncontrolled BP (95% vs 95.5%). CONCLUSIONS: This survey identified a remarkable degree of therapeutic inertia and poor patients' involvement in the therapeutic process and its monitoring in the examined population, underlining the importance of prevention campaigns to identify areas of unsatisfactory management of hypertension, to increase risk factors' awareness in the population with the final purpose of reducing cardiovascular risk.


Subject(s)
Antihypertensive Agents , Blood Pressure , Drug Combinations , Health Care Surveys , Health Knowledge, Attitudes, Practice , Hypertension , Medication Adherence , Humans , Female , Antihypertensive Agents/therapeutic use , Antihypertensive Agents/adverse effects , Antihypertensive Agents/administration & dosage , Male , Italy/epidemiology , Hypertension/drug therapy , Hypertension/physiopathology , Hypertension/epidemiology , Hypertension/diagnosis , Middle Aged , Cross-Sectional Studies , Aged , Blood Pressure/drug effects , Treatment Outcome , Practice Patterns, Physicians' , Time Factors , Adult , Attitude of Health Personnel
2.
N Z Med J ; 137(1596): 13-19, 2024 Jun 07.
Article in English | MEDLINE | ID: mdl-38843546

ABSTRACT

AIM: Systolic blood pressure (SBP) >180mmHg following stroke thrombolysis has been associated with increased bleeding and poorer outcome. Aiming for the guideline SBP of <180mmHg often leads to SBP overshoot, as treatment is only triggered if this threshold is passed. We tested whether a lower target would result in fewer high SBP protocol violations. METHOD: This is a single-centre, sequential comparison of two blood pressure protocols. Between 2013 and 2017, the guideline-based post-thrombolysis SBP target of <180mmHg was compared with a new protocol aiming for 140-160mmHg. The primary outcome was rate of patients with SBPs >180mmHg. Secondary outcomes included rates of SBP <120 mmHg, antihypertensive infusion use, symptomatic intracerebral haemorrhage (sICH) and 3-month functional independence (modified Rankin Score [mRS] 0-2). Results were adjusted for age, baseline function and stroke severity using regression analysis. RESULTS: During the 23 months preceding and 18 months following the transition to the new protocol, 68 and 100 patients were thrombolysed respectively. Baseline characteristics were similar between groups. The odds of one or more SBPs >180mmHg trended lower in the intensive group (adjusted odds ratio [aOR] 0.61; 95% confidence interval [CI] 0.32-1.17; p=0.14). There was a higher rate of SBPs <120mmHg (aOR 3.09; 95% CI 1.49-6.40; p=0.002) in the intensive BP protocol group. sICH rate and 3-month mRS 0-2 were similar between groups. CONCLUSIONS: The more intensive post-thrombolysis BP protocol was associated with a significant increase in sub-optimally low BP events, with a non-significant trend toward fewer high BP protocol violations and unaffected patient outcomes.


Subject(s)
Antihypertensive Agents , Blood Pressure , Thrombolytic Therapy , Humans , Female , Male , Aged , Thrombolytic Therapy/methods , Antihypertensive Agents/therapeutic use , Antihypertensive Agents/administration & dosage , Blood Pressure/drug effects , Middle Aged , Hypertension/drug therapy , Stroke/drug therapy , Aged, 80 and over , Treatment Outcome , Fibrinolytic Agents/therapeutic use , Fibrinolytic Agents/administration & dosage , Ischemic Stroke/drug therapy , Cerebral Hemorrhage/drug therapy
3.
Int J Chron Obstruct Pulmon Dis ; 19: 1105-1121, 2024.
Article in English | MEDLINE | ID: mdl-38803412

ABSTRACT

Purpose: This phase 1 study (NCT04370873) evaluated safety and pharmacokinetics/pharmacodynamics (PK/PD) of MK-5475 in participants with pulmonary hypertension associated with COPD (PH-COPD). Methods: Eligible participants were 40-80 years old with COPD (FEV1/FVC <0.7; FEV1 >30% predicted) and PH (mean pulmonary arterial pressure ≥25 mmHg). Participants were randomized 2:1 to MK-5475 or placebo via dry-powder inhaler once daily for 7 days in Part 1 (360 µg) or 28 days in Part 2 (380 µg). Safety was assessed by adverse events (AEs) and arterial blood oxygenation. Part-2 participants had pulmonary vascular resistance (PVR; primary PD endpoint) and pulmonary blood volume (PBV; secondary PD endpoint) measured at baseline and Day 28. A non-informative prior was used to calculate posterior probability (PP) that the between-group difference (MK-5475 - placebo) in mean percent reduction from baseline in PVR was less than -15%. Results: Nine participants were randomized in Part 1, and 14 participants in Part 2. Median age of participants (86.4% male) was 68.5 years (41-77 years); 95.5% had moderate-to-severe COPD. Incidences of AEs were comparable between MK-5475 and placebo: overall (5/14 [36%] versus 5/8 [63%]), drug-related (1/14 [7%] versus 2/8 [25%]), and serious (1/14 [7%] versus 1/8 [13%]). MK-5475 caused no meaningful changes in arterial blood oxygenation or PBV. MK-5475 versus placebo led to numerical improvements from baseline in PVR (-21.2% [95% CI: -35.4, -7.0] versus -5.4% [95% CI: -83.7, 72.9]), with between-group difference in PVR less than -15% and calculated PP of 51%. Conclusion: The favorable safety profile and numerical reductions in PVR observed support further clinical development of inhaled MK-5475 for PH-COPD treatment.


Subject(s)
Hypertension, Pulmonary , Lung , Pulmonary Disease, Chronic Obstructive , Humans , Pulmonary Disease, Chronic Obstructive/drug therapy , Pulmonary Disease, Chronic Obstructive/diagnosis , Pulmonary Disease, Chronic Obstructive/physiopathology , Male , Aged , Administration, Inhalation , Female , Middle Aged , Treatment Outcome , Double-Blind Method , Hypertension, Pulmonary/drug therapy , Hypertension, Pulmonary/physiopathology , Hypertension, Pulmonary/diagnosis , Adult , Lung/physiopathology , Lung/drug effects , Aged, 80 and over , Soluble Guanylyl Cyclase/metabolism , Dry Powder Inhalers , Time Factors , Forced Expiratory Volume , Enzyme Activators/administration & dosage , Enzyme Activators/adverse effects , Enzyme Activators/pharmacokinetics , Antihypertensive Agents/administration & dosage , Antihypertensive Agents/adverse effects , Antihypertensive Agents/pharmacokinetics , Arterial Pressure/drug effects , Vital Capacity
6.
AAPS PharmSciTech ; 25(5): 115, 2024 May 16.
Article in English | MEDLINE | ID: mdl-38755324

ABSTRACT

More than 1 billion people worldwide suffer from hypertension; therefore, hypertension management has been categorized as a global health priority. Losartan potassium (LP) is an antihypertensive drug with a limited oral bioavailability of about 33% since it undergoes the initial metabolic cycle. Thus, nasal administration is a unique route to overcome first-pass metabolism. The investigation focused on the potential effects of LP-loaded spanlastic vesicles (SNVs) on LP pharmacodynamics and pharmacokinetic parameters, utilizing a thin-film hydration methodology established on a 3122 full factorial design. Entrapment efficiency (EE%) ranged from 39.8 ± 3.87.8 to 83.8 ± 2.92% for LP-SNVs. Vesicle size (VS) varied from 205.5 ± 6.5.10 to 445.1 ± 13.52 nm, and the percentage of LP released after 8 h (Q8h) ranged from 30.8 ± 3.10 to 68.8 ± 1.45%. LP permeated through the nasal mucosa during 24 h and flocculated from 194.1 ± 4.90 to 435.3 ± 13.53 µg/cm2. After twenty-four hours, the optimal LP-SNVs in-situ gel showed 2.35 times more permeation through the nasal mucosa than the LP solution. It also lowered systolic blood pressure, so it is thought to be better than the reference formulation in terms of pharmacodynamics. The pharmacokinetics studies demonstrated that the intranasal LP-SNVs gel boosted its bioavailability approximately 6.36 times compared to the oral LP solution. Our research showed that intranasal LP-SNVs could be a good nanoplatform because they are well-tolerated and have possible pharmacokinetics and pharmacodynamics.


Subject(s)
Antihypertensive Agents , Gels , Hypertension , Losartan , Losartan/pharmacokinetics , Losartan/administration & dosage , Losartan/pharmacology , Antihypertensive Agents/pharmacokinetics , Antihypertensive Agents/administration & dosage , Antihypertensive Agents/pharmacology , Animals , Hypertension/drug therapy , Male , Rats , Biological Availability , Administration, Intranasal , Nanoparticles/chemistry , Nasal Mucosa/metabolism , Nasal Mucosa/drug effects , Particle Size , Angiotensin II/pharmacokinetics , Angiotensin II/administration & dosage , Angiotensin II/pharmacology , Blood Pressure/drug effects , Rats, Wistar , Chemistry, Pharmaceutical/methods
7.
JAMA Netw Open ; 7(5): e2410063, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38728033

ABSTRACT

Importance: Patient empowerment through pharmacologic self-management is a common strategy for some chronic diseases such as diabetes, but it is rarely used for controlling blood pressure (BP). Several trials have shown its potential for reducing BP in the short term, but evidence in the longer term is scarce. Objective: To evaluate the longer-term effectiveness of BP self-monitoring plus self-titration of antihypertensive medication vs usual care for patients with poorly controlled hypertension, with passive follow-up and primary-care nursing involvement. Design, Setting, and Participants: The ADAMPA (Impact of Self-Monitoring of Blood Pressure and Self-Titration of Medication in the Control of Hypertension) study was a randomized, unblinded clinical trial with 2 parallel arms conducted in Valencia, Spain. Included participants were patients 40 years or older, with systolic BP (SBP) over 145 mm Hg and/or diastolic BP (DBP) over 90 mm Hg, recruited from July 21, 2017, to June 30, 2018 (study completion, August 25, 2020). Statistical analysis was conducted on an intention-to-treat basis from August 2022 to February 2024. Interventions: Participants were randomized 1:1 to usual care vs an individualized, prearranged plan based on BP self-monitoring plus medication self-titration. Main Outcomes and Measures: The main outome was the adjusted mean difference (AMD) in SBP between groups at 24 months of follow-up. Secondary outcomes were the AMD in DBP between groups at 24 months of follow-up, proportion of patients reaching the BP target (SBP <140 mm Hg and DBP <90 mm Hg), change in behaviors, quality of life, health service use, and adverse events. Results: Among 312 patients included in main trial, data on BP measurements at 24 months were available for 219 patients (111 in the intervention group and 108 in the control group). The mean (SD) age was 64.3 (10.1) years, and 120 patients (54.8%) were female; the mean (SD) SBP was 155.6 (13.1) mm Hg, and the mean (SD) diastolic BP was 90.8 (7.7) mm Hg. The median follow-up was 23.8 months (IQR, 19.8-24.5 months). The AMD in SBP at the end of follow-up was -3.4 mm Hg (95% CI, -4.7 to -2.1 mm Hg; P < .001), and the AMD in DBP was -2.5 mm Hg (95% CI, -3.5 to -1.6 mm Hg; P < .001). Subgroup analysis for the main outcome showed consistent results. Sensitivity analyses confirmed the robustness of the main findings. No differences were observed between groups in behaviors, quality of life, use of health services, or adverse events. Conclusions and Relevance: In this secondary analysis of a randomized clinical trial, BP self-monitoring plus self-titration of antihypertensive medication based on an individualized prearranged plan used in primary care reduced BP in the longer term with passive follow-up compared with usual care, without increasing health care use or adverse events. These results suggest that simple, inexpensive, and easy-to-implement self-management interventions have the potential to improve the long-term control of hypertension in routine clinical practice. Trial Registration: ClinicalTrials.gov Identifier: NCT03242785.


Subject(s)
Antihypertensive Agents , Blood Pressure Monitoring, Ambulatory , Hypertension , Humans , Female , Hypertension/drug therapy , Male , Middle Aged , Antihypertensive Agents/therapeutic use , Antihypertensive Agents/administration & dosage , Blood Pressure Monitoring, Ambulatory/methods , Aged , Spain , Blood Pressure/drug effects , Self Care/methods
8.
J Pharm Biomed Anal ; 245: 116194, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-38704878

ABSTRACT

A miniature mass spectrometer (mMS) based point-of-care testing (POCT) method was evaluated for on-site detecting the hypertension drugs, amlodipine and benazepril. The instrument parameters, including voltage, ISO1, ISO2, and CID, were optimized, under which the target compounds could be well detected in MS2. When these two drugs were injected simultaneously, the mutual ionization inhibition and mutual reduction between amlodipine and benazepril were evaluated. This phenomenon was severe on the precursor ions but had a small impact on the product ions, thus making this POCT method suitable for analysis using product ions. Finally, the method was validated and applied. The blood samples from patients were tested one hour after oral administration of the drugs (20 mg), and the benazepril was quantitatively analyzed using a standard curve, with detected concentrations ranging from 190.6 to 210 µg L-1 and a relative standard deviation (RSD) of 8.6 %. In summary, amlodipine has low sensitivity and can only be detected at higher concentrations, while benazepril has high sensitivity, good linearity, and even meets semi-quantitative requirements. The research results of this study are of great clinical significance for monitoring blood drug concentrations during hypertension medication, predicting drug efficacy, and customizing individualized medication plans.


Subject(s)
Amlodipine , Antihypertensive Agents , Benzazepines , Amlodipine/blood , Humans , Benzazepines/blood , Antihypertensive Agents/blood , Antihypertensive Agents/administration & dosage , Mass Spectrometry/methods , Point-of-Care Testing , Reproducibility of Results , Limit of Detection , Point-of-Care Systems
12.
J Hum Hypertens ; 38(6): 516-522, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38744907

ABSTRACT

Single-pill combination therapy containing four quarter-dose medications for high blood pressure improves BP control compared to monotherapy, however patient-reported acceptance of the quadpill as a treatment strategy remains undescribed. We collected within-trial feedback and interviewed participants from the quadruple ultra-low-dose treatment for hypertension (QUARTET) trial to characterise patient attitudes to this intervention. All trial participants were asked about ease and preference for the quadpill and provided an opportunity to give further comments on the trial at 12 weeks (trial primary endpoint) and 52 weeks extended follow-up. Separately, we used purposive and quota sampling for the semi-structured telephone interviews, with the resultant verbatim transcripts analysed using an inductive thematic analysis approach. Themes were re-evaluated after each successive interview, and at suspected data saturation, an additional interview conducted for confirmation. At 12 weeks follow-up, 502 of 591 (85%) participants responded to acceptability questions, and 359 of 417 (86%) responded at week 52. Most reported the trial capsule easy or very easy to take. From eight sites, 16 participants were interviewed between 5 August 2020 and 19 November 2020. All described a positive experience, preferred once-daily morning dosing and found routine facilitated adherence. Participants valued individual responsibility for adherence, and involvement of the general practitioner in blood-pressure management. Most reported capsule size did not deter adherence but desired a smaller capsule. Participants described a preference for minimising number and dosage of medications, reduced capsule size, and once-daily morning dosing. These findings suggest a preference for single-pill combination therapy for blood pressure lowering.


Subject(s)
Antihypertensive Agents , Blood Pressure , Drug Combinations , Hypertension , Humans , Hypertension/drug therapy , Hypertension/physiopathology , Hypertension/diagnosis , Antihypertensive Agents/administration & dosage , Female , Male , Middle Aged , Blood Pressure/drug effects , Aged , Treatment Outcome , Patient Preference , Adult
14.
N Engl J Med ; 390(20): 1862-1872, 2024 May 30.
Article in English | MEDLINE | ID: mdl-38752650

ABSTRACT

BACKGROUND: Treatment of acute stroke, before a distinction can be made between ischemic and hemorrhagic types, is challenging. Whether very early blood-pressure control in the ambulance improves outcomes among patients with undifferentiated acute stroke is uncertain. METHODS: We randomly assigned patients with suspected acute stroke that caused a motor deficit and with elevated systolic blood pressure (≥150 mm Hg), who were assessed in the ambulance within 2 hours after the onset of symptoms, to receive immediate treatment to lower the systolic blood pressure (target range, 130 to 140 mm Hg) (intervention group) or usual blood-pressure management (usual-care group). The primary efficacy outcome was functional status as assessed by the score on the modified Rankin scale (range, 0 [no symptoms] to 6 [death]) at 90 days after randomization. The primary safety outcome was any serious adverse event. RESULTS: A total of 2404 patients (mean age, 70 years) in China underwent randomization and provided consent for the trial: 1205 in the intervention group and 1199 in the usual-care group. The median time between symptom onset and randomization was 61 minutes (interquartile range, 41 to 93), and the mean blood pressure at randomization was 178/98 mm Hg. Stroke was subsequently confirmed by imaging in 2240 patients, of whom 1041 (46.5%) had a hemorrhagic stroke. At the time of patients' arrival at the hospital, the mean systolic blood pressure in the intervention group was 159 mm Hg, as compared with 170 mm Hg in the usual-care group. Overall, there was no difference in functional outcome between the two groups (common odds ratio, 1.00; 95% confidence interval [CI], 0.87 to 1.15), and the incidence of serious adverse events was similar in the two groups. Prehospital reduction of blood pressure was associated with a decrease in the odds of a poor functional outcome among patients with hemorrhagic stroke (common odds ratio, 0.75; 95% CI, 0.60 to 0.92) but an increase among patients with cerebral ischemia (common odds ratio, 1.30; 95% CI, 1.06 to 1.60). CONCLUSIONS: In this trial, prehospital blood-pressure reduction did not improve functional outcomes in a cohort of patients with undifferentiated acute stroke, of whom 46.5% subsequently received a diagnosis of hemorrhagic stroke. (Funded by the National Health and Medical Research Council of Australia and others; INTERACT4 ClinicalTrials.gov number, NCT03790800; Chinese Trial Registry number, ChiCTR1900020534.).


Subject(s)
Antihypertensive Agents , Blood Pressure , Emergency Medical Services , Hypertension , Stroke , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Ambulances , Antihypertensive Agents/administration & dosage , Antihypertensive Agents/adverse effects , Antihypertensive Agents/therapeutic use , Blood Pressure/drug effects , Hypertension/complications , Hypertension/drug therapy , Ischemic Stroke/therapy , Stroke/etiology , Stroke/therapy , Time-to-Treatment , Acute Disease , Functional Status , China
15.
Vestn Oftalmol ; 140(2. Vyp. 2): 73-79, 2024.
Article in Russian | MEDLINE | ID: mdl-38739134

ABSTRACT

The management protocol for patients with neovascular age-related macular degeneration (nAMD) involves multiple intravitreal injections (IVI) of anti-VEGF drugs. The ability to reduce the peak intraocular pressure (IOP) rise is greatly important in clinical practice. PURPOSE: This study evaluates the effect of topical hypotensive drugs on the short-term IOP rise after IVI of anti-VEGF drugs in patients with nAMD. MATERIAL AND METHODS: The prospective study included 80 patients with newly diagnosed nAMD. Before the start of treatment, the patients were divided into 4 groups of 20 people each: 1st - controls, who received no prophylactic drugs, in the 2nd, 3rd and 4th groups local instillations of one drop of hypotensive drugs brinzolamide 1%, brinzolamide-timolol, brimonidine-timolol were performed in the conjunctival sac twice: 1 day before the injection (at 20:00) and on the day of the injection 2 hours before the manipulation (at 08:00), respectively. IOP was measured in each patient using ICare Pro non-contact tonometer before injection, as well as 1 min, 30 and 60 min after injection. RESULTS: Prophylactic use of hypotensive drugs was associated with a significant decrease in IOP immediately after IVI compared to the same parameter in the 1st group (p<0.001), the maximum decrease in IOP values was observed when using a fixed combination of brimonidine-timolol by 12.1 mm Hg compared to the controls (p<0.001), the combination of brinzolamide-timolol reduced IOP by 8.5 mm Hg (p<0.001), brinzolamide 1% led to the smallest decrease in IOP - by 5.1 mm Hg (p<0.001). CONCLUSION: Study patients that received instillations of brimonidine-timolol combination of one drop into the conjunctival sac 1 day before the injection and on the day of the injection showed the maximum decrease in IOP compared to patients of the other groups.


Subject(s)
Angiogenesis Inhibitors , Intraocular Pressure , Intravitreal Injections , Ocular Hypertension , Sulfonamides , Humans , Male , Female , Aged , Intraocular Pressure/drug effects , Ocular Hypertension/prevention & control , Ocular Hypertension/drug therapy , Ocular Hypertension/physiopathology , Angiogenesis Inhibitors/administration & dosage , Prospective Studies , Sulfonamides/administration & dosage , Treatment Outcome , Antihypertensive Agents/administration & dosage , Vascular Endothelial Growth Factor A/antagonists & inhibitors , Tonometry, Ocular/methods , Middle Aged , Timolol/administration & dosage , Brimonidine Tartrate/administration & dosage , Ophthalmic Solutions/administration & dosage , Thiazines/administration & dosage , Macular Degeneration/drug therapy , Macular Degeneration/diagnosis
16.
Eur Respir J ; 63(6)2024 Jun.
Article in English | MEDLINE | ID: mdl-38811045

ABSTRACT

BACKGROUND: Pulmonary hypertension (PH) accompanying COPD (PH-COPD) is associated with worse outcomes than COPD alone. There are currently no approved therapies to treat PH-COPD. The PERFECT study (ClinicalTrials.gov: NCT03496623) evaluated the safety and efficacy of inhaled treprostinil (iTRE) in this patient population. METHODS: Patients with PH-COPD (mean pulmonary arterial pressure ≥30 mmHg and pulmonary vascular resistance ≥4 WU) were enrolled in a multicentre, randomised (1:1), double-blind, placebo-controlled, 12-week, crossover study. A contingent parallel design was also prespecified and implemented, based on a blinded interim analysis of missing data. Patients received treatment with iTRE up to 12 breaths (72 µg) 4 times daily or placebo. The primary efficacy end-point was change in peak 6-min walk distance (6MWD) at week 12. RESULTS: In total, 76 patients were randomised, 64 in the original crossover design and 12 in the contingent parallel design; 66 patients received iTRE and 58 received placebo. The study was terminated early at the recommendation of the data and safety monitoring committee based on the totality of evidence that iTRE increased the risk of serious adverse events and suggestive evidence of an increased risk of mortality. The change in 6MWD was numerically worse with iTRE exposure than with placebo exposure. CONCLUSIONS: The risk-benefit observations associated with iTRE in patients with PH-COPD did not support continuation of the PERFECT study. The results of this study do not support iTRE as a viable treatment option in patients with PH-COPD.


Subject(s)
Antihypertensive Agents , Cross-Over Studies , Epoprostenol , Hypertension, Pulmonary , Pulmonary Disease, Chronic Obstructive , Walk Test , Humans , Pulmonary Disease, Chronic Obstructive/drug therapy , Pulmonary Disease, Chronic Obstructive/complications , Epoprostenol/analogs & derivatives , Epoprostenol/administration & dosage , Epoprostenol/therapeutic use , Female , Male , Hypertension, Pulmonary/drug therapy , Administration, Inhalation , Aged , Middle Aged , Double-Blind Method , Antihypertensive Agents/administration & dosage , Antihypertensive Agents/therapeutic use , Treatment Outcome
17.
Basic Clin Pharmacol Toxicol ; 135(1): 60-70, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38767191

ABSTRACT

There is a lack of effective therapeutic drugs for pulmonary arterial hypertension. Previous studies have demonstrated the positive cardiovascular system protective effects of the new peptide ACTY116. However, its stability in ordinary aqueous solution injections is poor and its half-life in the body is short, which has hindered the development of preparations. This study aimed to prepare in situ forming implants (ISFIs) of the peptide ACTY116 and investigate its impact on pulmonary arterial hypertension. We prepared ISFIs using NMP/TA as a solvent and PLGA as a polymer. These ISFIs exhibited low viscosity, low toxicity and sustained release properties. In a mouse model of pulmonary hypertension induced by SU5416/hypoxia, both ISFIs and ACTY116 peptides effectively reduced pulmonary hypertension, cardiac hypertrophy and pulmonary blood vessel wall thickness. In conclusion, this study highlights the potential of ACTY116 as a treatment for pulmonary arterial hypertension and suggests that incorporating it into an in-situ gel implant could be a promising option.


Subject(s)
Disease Models, Animal , Hypertrophy, Right Ventricular , Hypoxia , Indoles , Pyrroles , Animals , Hypertrophy, Right Ventricular/drug therapy , Mice , Male , Indoles/administration & dosage , Indoles/pharmacology , Pyrroles/administration & dosage , Hypoxia/drug therapy , Pulmonary Arterial Hypertension/drug therapy , Drug Implants , Hypertension, Pulmonary/drug therapy , Hypertension, Pulmonary/etiology , Oligopeptides/pharmacology , Oligopeptides/administration & dosage , Delayed-Action Preparations , Polylactic Acid-Polyglycolic Acid Copolymer/chemistry , Mice, Inbred C57BL , Antihypertensive Agents/pharmacology , Antihypertensive Agents/administration & dosage
19.
Curr Cardiol Rep ; 26(5): 443-450, 2024 May.
Article in English | MEDLINE | ID: mdl-38557814

ABSTRACT

PURPOSE OF REVIEW: The polypill strategy, originally developed to improve medication adherence, has demonstrated efficacy in improving baseline systolic blood pressures and cholesterol levels in multiple clinical trials. However, the long-term clinical impact of improved major cardiovascular events (MACE) outcomes by the polypill remains uncertain. RECENT FINDINGS: Recent trials with long-term follow-up, which included minority groups and people with low socioeconomic status, have shown non-inferiority with no difference in adverse effects rates for the secondary prevention of MACE. Although the polypill strategy was initially introduced to improve adherence to guideline-directed medical therapy (GDMT) for cardiovascular complications, the strategy has surpassed standard medical treatment for secondary prevention of MACE outcomes. Studies also showed improved medication compliance in underserved populations.


Subject(s)
Cardiovascular Diseases , Medication Adherence , Secondary Prevention , Humans , Cardiovascular Diseases/prevention & control , Secondary Prevention/methods , Drug Combinations , Hydroxymethylglutaryl-CoA Reductase Inhibitors/administration & dosage , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Antihypertensive Agents/therapeutic use , Antihypertensive Agents/administration & dosage , Anticholesteremic Agents/therapeutic use , Anticholesteremic Agents/administration & dosage
20.
Am J Obstet Gynecol MFM ; 6(5): 101368, 2024 May.
Article in English | MEDLINE | ID: mdl-38574856

ABSTRACT

BACKGROUND: Despite major advances in the pharmacologic treatment of hypertension in the nonpregnant population, treatments for hypertension in pregnancy have remained largely unchanged over the years. There is recent evidence that a more adequate control of maternal blood pressure is achieved when the first given antihypertensive drug is able to correct the underlying hemodynamic disorder of the mother besides normalizing the blood pressure values. OBJECTIVE: This study aimed to compare the blood pressure control in women receiving an appropriate or inappropriate antihypertensive therapy following the baseline hemodynamic findings. STUDY DESIGN: This was a prospective multicenter study that included a population of women with de novo diagnosis of hypertensive disorders of pregnancy. A noninvasive assessment of the following maternal parameters was performed on hospital admission via Ultrasound Cardiac Output Monitor before any antihypertensive therapy was given: cardiac output, heart rate, systemic vascular resistance, and stroke volume. The clinician who prescribed the antihypertensive therapy was blinded to the hemodynamic evaluation and used as first-line treatment a vasodilator (nifedipine or alpha methyldopa) or a beta-blocker (labetalol) based on his preferences or on the local protocols. The first-line pharmacologic treatment was retrospectively considered hemodynamically appropriate in either of the following circumstances: (1) women with a hypodynamic profile (defined as low cardiac output [≤5 L/min] and/or high systemic vascular resistance [≥1300 dynes/second/cm2]) who were administered oral nifedipine or alpha methyldopa and (2) women with a hyperdynamic profile (defined as normal or high cardiac output [>5 L/min] and/or low systemic vascular resistances [<1300 dynes/second/cm2]) who were administered oral labetalol. The primary outcome of the study was to compare the occurrence of severe hypertension between women treated with a hemodynamically appropriate therapy and women treated with an inappropriate therapy. RESULTS: A total of 152 women with hypertensive disorders of pregnancy were included in the final analysis. Most women displayed a hypodynamic profile (114 [75.0%]) and received a hemodynamically appropriate treatment (116 [76.3%]). The occurrence of severe hypertension before delivery was significantly lower in the group receiving an appropriate therapy than in the group receiving an inappropriately treated (6.0% vs 19.4%, respectively; P=.02). Moreover, the number of women who achieved target values of blood pressure within 48 to 72 hours from the treatment start was higher in the group who received an appropriate treatment than in the group who received an inappropriate treatment (70.7% vs 50.0%, respectively; P=.02). CONCLUSION: In pregnant individuals with de novo hypertensive disorders of pregnancy, a lower occurrence of severe hypertension was observed when the first-line antihypertensive agent was tailored to the correct maternal hemodynamic profile.


Subject(s)
Antihypertensive Agents , Hemodynamics , Labetalol , Pre-Eclampsia , Humans , Female , Pregnancy , Antihypertensive Agents/therapeutic use , Antihypertensive Agents/pharmacology , Antihypertensive Agents/administration & dosage , Prospective Studies , Adult , Hemodynamics/drug effects , Hemodynamics/physiology , Pre-Eclampsia/physiopathology , Pre-Eclampsia/drug therapy , Pre-Eclampsia/diagnosis , Labetalol/administration & dosage , Labetalol/pharmacology , Cardiac Output/drug effects , Cardiac Output/physiology , Nifedipine/pharmacology , Nifedipine/administration & dosage , Nifedipine/therapeutic use , Vascular Resistance/drug effects , Methyldopa/administration & dosage , Methyldopa/pharmacology , Methyldopa/therapeutic use , Blood Pressure/drug effects , Blood Pressure/physiology , Hypertension, Pregnancy-Induced/drug therapy , Hypertension, Pregnancy-Induced/physiopathology , Hypertension, Pregnancy-Induced/diagnosis , Treatment Outcome , Heart Rate/drug effects , Heart Rate/physiology , Stroke Volume/drug effects , Stroke Volume/physiology , Vasodilator Agents/administration & dosage , Vasodilator Agents/pharmacology , Vasodilator Agents/therapeutic use
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