Scientific Evidence

Pharmaceutical products have contributed to improving the expectancy and quality of life of millions of patients and their role in our society is undisputed. However, many active pharmaceutical ingredients have been found in rivers, lakes, seas, drinking water and can cause damage to the environment and ecosystems. Environmental contamination is known to affect biodiversity and health. From a "One Health" perspective, human health is safeguarded by preserving the environment and ecosystems. Italy is at the forefront on the issue of protecting biodiversity, having included it among the fundamental principles of the Constitution. At the same time the European Commission launched the strategy to protect biodiversity by 2030. To map and limit the environmental effect of drugs, it has been proposed the topic of ecopharmacovigilance and eco-directed sustainable prescribing.

It's in this context that this work on the ready biodegradability of a drug-based on loperamide and a medical device made of complex natural matrix, Lenodiar-Pediatric®, was carried out for the first time. The products, indicated to treat diarrhoea, were found to be readily biodegradable. For Lenodiar-Pediatric® the biodegradation isn't surprising, while for the drug-based on loperamide it was due to the degradation of excipients. Indeed, the UHPLC-qToF investigation highlighted that loperamide was present at the end of the test and is therefore potentially persistent in the environment, confirming the most relevant literature.

In conclusion, therapeutic products made of natural complex matrix which efficacy and safety have been proven according to Evidence-Based Standards may play an important role in safeguarding biodiversity.

Diarrhea continues to be a global health problem as acute diarrhea carries the risk of dehydration, while both acute and chronic diarrhea can significantly affect patients’ quality of life and reduce productivity. The innovative medical device Actitan, which consists of a complex of natural molecules, could be an effective option for the treatment of diarrhea from various causes. The aim of this post-market cross-sectional study was to evaluate the perceived efficacy, safety and usage pattern of the two formulations for adults (Actitan-P) and children (Actitan-F) among patients/child caregivers, physicians and pharmacists. Participants completed online questionnaires with closed multiple-choice questions that were rated on a verbal 5-point Likert scale. These surveys were conducted via the online platform Real World Data, which provides digital questionnaires for patients, doctors and pharmacists. Two separate surveys were conducted for the two formulations, with a total of 2630 participants (1488 participants for Actitan-P and 1142 participants for Actitan-F). Overall, the results indicate a high level of efficacy and safety of the product. In the case of Actitan-F, more than 96% of caregivers rated safety as good or excellent, and over 92% rated efficacy as good or excellent. Actitan-P also received positive feedback: nearly 86% of patients reported good/excellent efficacy, and more than 93% rated safety as good or excellent. These positive evaluations were confirmed by physicians and pharmacists, who also did not report adverse effects. In summary, this study confirms the role of Actitan as a safe and effective option for the treatment of diarrhea of different causes and in different patient groups, including young children.

Suspect screening and untargeted analysis using UHPLC-qToF are two advanced analytical approaches now used to achieve an extensive chemical profile of samples, which are then typically confirmed through targeted analysis. These techniques can detect a large number of chemical features simultaneously and are currently being introduced into the study of contaminants of emerging concern (CECs) and into the study of the extent of human chemical exposure (the exposome). Here is described the use of these techniques to characterize chemical mixtures derived from the OECD 301F ready biodegradability test (RBT) of a chemical and natural formulation currently used to treat reflux disease and functional dyspepsia. Untargeted analysis clearly evidenced a different behavior between formulations containing only natural products with respect to that containing synthetic and non-naturally occurring substances. Suspect screening analysis improved the untargeted analysis of the omeprazole-based medicine, leading to the tentative identification of a number of omeprazole-derived transformation products, thereby enabling their preliminary quali-quantitative evaluation. Targeted analysis was then performed to confirm the preliminary data gained from the suspect screening approach. The validation of the analytical method for the quantitative determination of omeprazole and its major metabolite, omeprazole sulphide, has provided robust data to evaluate the behavior of omeprazole during the OECD 301F test. Using advanced analytical approaches, the RBT performed on the two products under investigation confirmed that omeprazole is not readily biodegradable, while the medical device made of natural substances has proven to be readily biodegradable.

INTRODUCTION: In the treatment of upper GI endoscopy-negative patients with heartburn and epigastric pain or burning, antacids, antireflux agents, and mucosal protective agents are widely used, alone or as add-on treatment, to increase response to proton-pump inhibitors, which are not indicated in infancy and pregnancy and account for significant cost expenditure.

METHODS: In this randomized, controlled, double-blind, double-dummy, multicenter trial assessing the efficacy and safety of mucosal protective agent Poliprotect (neoBianacid, Sansepolcro, Italy) vs omeprazole in the relief of heartburn and epigastric pain/burning, 275 endoscopy-negative outpatients were given a 4-week treatment with omeprazole (20 mg q.d.) or Poliprotect (5 times a day for the initial 2 weeks and on demand thereafter), followed by an open-label 4-week treatment period with Poliprotect on-demand. Gut microbiota change was assessed.

RESULTS: A 2-week treatment with Poliprotect proved noninferior to omeprazole for symptom relief (between-group difference in the change in visual analog scale symptom score: [mean, 95% confidence interval] -5.4, -9.9 to -0.1; -6.2, -10.8 to -1.6; intention-to-treat and per-protocol populations, respectively). Poliprotect's benefit remained unaltered after shifting to on-demand intake, with no gut microbiota variation. The initial benefit of omeprazole was maintained against significantly higher use of rescue medicine sachets (mean, 95% confidence interval: Poliprotect 3.9, 2.8–5.0; omeprazole 8.2, 4.8–11.6) and associated with an increased abundance of oral cavity genera in the intestinal microbiota. No relevant adverse events were reported in either treatment arm.

DISCUSSION: Poliprotect proved noninferior to standard-dose omeprazole in symptomatic patients with heartburn/epigastric burning without erosive esophagitis and gastroduodenal lesions. Gut microbiota was not affected by Poliprotect treatment. The study is registered in Clinicaltrial.gov (NCT03238534) and the EudraCT database (2015-005216-15).

Aim of this Real World (RW) research was to investigate the effectiveness and safety of the vegetal molecular complex ActiMucin in Irritable Bowel Syndrome (IBS) patients with diarrhea predominant (IBS-D), constipation predominant (IBS-C) and mixed (IBS-M) clinical subtypes.

Background: Gastroesophageal reflux disease (GERD) and functional dyspepsia (FD) are very common in the general population. GERD prevalence is considerably high in pregnant women, and it increases at a young age, alongside obesity. Mucosal protective agents (MPAs) are over-the-counter (OTC) treatments for FD and GERD commonly used alone or as add-on therapy to proton pump inhibitors (PPIs). Real-world data through surveys allow a clinical evaluation of marketed products that also complies with the new regulation on substance-based medical devices (SBMDs).

Aim: The study aimed to evaluate perceived effectiveness, safety, and pattern of usage among patients, physicians, and pharmacists of the natural MPA Poliprotect, as assessed by a validated survey methodology.

Methods: Questionnaire repeatability was first assessed, resulting in the intraclass correlation coefficient agreement level >0.9 in the three validation cohorts of physicians, pharmacists, and patients. All questions were closed multiple-choice, allowing measuring variations in frequency, quality, or magnitude of effect on a 5-point Likert-like verbal scale.

Results: Three different surveys were performed in Italy and Spain on a total of 3,471 physicians, including 77 gastroenterologists, 848 patients, and 146 pharmacists who had an experience with Poliprotect in the previous year. Over 90% of general practitioners (GPs) rated Poliprotect effectiveness as good/excellent in controlling pyrosis, 80% for epigastric pain, and approximately 70% for digestion difficulties. GPs reported Poliprotect as very or extremely useful as an alternative to PPIs (73%) and for pregnancy-associated GERD symptoms (61%), almost unanimously (99.5%) reporting an excellent to good tolerability; 79% of the gastroenterologists answered to be extremely or very satisfied with the improvement of typical GERD symptoms, whereas improvement of dyspepsia and pregnancy- and breast-feeding-associated GERD symptoms was rated as highly satisfactory for 69, 52, and 62%, respectively, among GI specialists. Its use because of painful dyspeptic symptoms was reported by over 80% of patients, who rated symptom relief as excellent/good, and reported a marked quality-of-life improvement in 73% and in 65% of their answers, respectively. The product was used as monotherapy by 63% of patients. 

Conclusion: Large-scale, validated surveys support the safety and effectiveness of Poliprotect in the treatment of common functional upper GI disorders.

Background and Aim: Hemorrhoidal Disease (HD) is a chronic pathology and is fairly common in the general population. For this reason, conservative therapies need to be at the same time effective and tolerated. The topical medications available usually contain either a combination of local anesthetics with anti-inflammatories or muscle relaxants, thus addressing a single mechanism, if any, of those that underlie symptoms onset. As a consequence, evidence of efficacy of these drugs is currently limited and the needed tolerability and safety from a topical treatment of HD is not always evident. The aim of the present study was to evaluate efficacy and tolerability of a 100% natural ointment, a medical device made of substances, for the symptomatic treatment of HD. Methods: Symptomatic grade I or II HD patients with 0-100 VAS score for HD-related
discomfort ≥ 30 were treated for 10 days. Outcome measures included variation of HD subjective symptoms (discomfort, pain, itching and burning) and objective signs (bleeding and anal leakage) at day 3, 7 and 10, and the presence of prolapse after treatment. Statistical analysis: for the analysis of the primary endpoint (i.e. reduction of discomfort), missing data in the full analysis set (FAS) population were replaced using the “Last Observation Carried Forward” (LOCF) method. For the analyses of secondary endpoints, Poisson mixed model was used to evaluate symptom variation (VAS). Bleeding and anal leakage were recoded as negative or positive in two different variables (grade 1 and 2) derived from their frequency (i.e., for grade1, each of the clinical signs was considered Negative if the patient reported frequency was “Never”; recoded as Positive if any other frequency category was reported) and frequencies of positive patients in each grade were compared by Logistic Mixed model. Mixed models were used to take in account repeated data for the same subject. Missing values in quantitative data analysing by Mixed model were imputed by statistical interpolation. In analysing bleeding, anal leakage and presence of prolapse in FAS population, missing data where either replaced using the LOCF method or imputed as positive (i.e., worst case).
Results: 45 patients were enrolled. Data showed a significant reduction of discomfort in treated patients both during and after treatment (p<0.001 at all-time points evaluated), with a median VAS score decrease of 30 points after treatment when compared to baseline. The same significant reduction (p<0.001) was shown for all other symptoms either at the end of treatment or at earlier time points, both in PP and FAS populations. As for objective signs, a significant reduction was observed, at each time point compared to baseline, in the number of patients from the PP population positive for bleeding (p<0.001) and anal leakage (p<0.05). A similar evolution was shown in FAS population, where reduction was progressive over the 10-day treatment and statistically significant or almost significant irrespectively of imputation method used. In 6 out of 10 patients presenting prolapse at baseline, prolapse was no more evident after treatment. No treatment-related adverse events were registered.
Conclusion: The class IIb medical device made of substances under study is a valid, highly tolerated and safe therapeutic option in medical management of grade I and II HD. Trial
registration NCT03545724 2018.06.04.

Background: Polyethylene glycol (PEG) is recommended as first-line treatment of pediatric functional constipation. However, the oral route of administration is often poorly feasible in children mostly due to poor palatability. Promelaxin microenemas exert a topical evacuative action and may offer a valuable option in pediatric FC.
Aim: To assess whether Promelaxin microenemas would be non-inferior to PEG 4000 in young children with FC.
Methods: This is a randomized, open-label, multi-centric, non-inferiority trial enrolling infants and young children aged 6–48 months, with FC according to Rome III criteria. After 1 week of run in, children were randomized to 2 weeks of Promelaxin or PEG, followed by a 6-week on-demand treatment period. Primary endpoint was response rate to randomized treatment, with “response” defined as at least 3 evacuations per week and an average increase of at least one evacuation per week as compared to baseline. Safety, stool consistency and the analysis of fecal microbiota were secondary endpoints.
Results: Out of the 158 patients who entered the trial, 153 patients were treated (77 and 76, PEG and Promelaxin arm, respectively). In the primary analysis, the 95% confidence interval (CI) for the treatment's effect lay entirely above the non-inferiority margin in both Full Set (FAS) and Per Protocol (PP) analyses, providing evidence of the non-inferiority of Promelaxin vs. PEG 4000 [response rate difference: 16.5% (CI 1.55–31.49%) and 11.03% (CI −5.58 to 27.64%), FAS and PP analyses, respectively]. Mean compliance to the randomized treatment was >80% in both arms. Secondary endpoints did not significantly differ between the two arms, except for the average number of total days of on-demand treatment that was significantly lower in the Promelaxin arm [14.6 (12.7) vs. 9.8 (9.1), mean (SD); primary endpoint responders in PEG and Promelaxin arm, respectively; p = 0.027]. Microbiota evenness significantly increased in the PEG 4000 arm at V4 as compared to the Promelaxin arm (p < 0.05). In addition, at V5, patients treated with PEG showed a significantly decreased microbiota density as compared to patients treated with Promelaxin (p = 0.036).
Conclusions: Promelaxin microenemas are non-inferior to oral PEG in children with FC.

Abdominal pain is a frequent symptom of irritable bowel syndrome (IBS) and inflammatory bowel diseases (IBDs). Although the knowledge of these pathologies is progressing, new therapeutic strategies continue to be investigated. In the present study, the effect of a system of molecules of natural origin (a medical device according to EU Directive 93/42/EC, engineered starting from Boswellia serrata resins, Aloe vera polysaccharides and Matricaria chamomilla and Melissa officinalis polyphenols) was evaluated against the intestinal damage and visceral pain development in DNBS-induced colitis model in rats. The system (250 and 500 mg kg−1) was orally administered once daily, starting three days before the injection of 2,4-dinitrobenzenesulfonic acid (DNBS) and for 14 days thereafter. The viscero-motor response (VMR) to colon-rectal balloon distension (CRD) was used as measure of visceral sensitivity. The product significantly reduced the VMR of DNBS-treated animals. Its effect on pain threshold was better than dexamethasone and mesalazine, and not lower than amitriptyline and otilonium bromide. At microscopic and macroscopic level, the tested system was more effective in protecting the intestinal mucosa than dexamethasone and mesalazine, promoting the healing of tissue lesions. Therefore, we suggest that the described system of molecules of natural origin may represent a therapeutic option to manage painful bowel diseases.

Background: AG is the most common cause of pediatric consultations among children between 2 and 5 years of age and it still leads to high mortality and morbidity. Its management is based on rehydration therapy, but this treatment is not effective in reducing duration of diarrhea. For this reason, other safer and less expensive interventions, which could be added to oral rehydration therapy, are of great interest.
Methods: A pilot, randomized, case-controlled trial was conducted in 60 children affected by AG (< 7 days) with mild-moderate dehydration, according to WHO recommendations, from1 year to 17 years old. Patients were divided into 2 Groups: Group 1 consisting of 30 children treated with Actitan F and standard oral rehydration (SOR); Group 2 consisting of 30 children who received only SOR. Both groups received treatment for seven days, respectively. Patients of Group 1 stopped for their own choice, SOR after the first 24 h and continued only with Actitan F.
Results: After 24 h of treatment, the median number of stools was 3.5 for Group 1, and 4 for Group 2. In Group 1 the difference between the number of stools at baseline (n = 5) and after 24 h of treatment (n = 3.5) was significant (p < 0.0001). At the end of treatment, the median duration of diarrhea in Group 1 was 5 days, compared with 4 days in the Group 2, this difference was not statically significant (p 0.48).
Conclusions: Oral administration of Actitan F associated with SOR seems safe and effective treatment in shortening the duration of AG in children. Further studies confirming these data are needed.