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Ballester P, Espadas C, Almenara S, Barrachina J, Muriel J, Ramos E, Toral N, Belda C, Peiró AM. CYP2D6 Genotype and Pharmacovigilance Impact on Autism Spectrum Disorder: A Naturalistic Study with Extreme Phenotype Analysis. Pharmaceuticals (Basel) 2023; 16:954. [PMID: 37513866 PMCID: PMC10385457 DOI: 10.3390/ph16070954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
The long-term use of psychopharmacology medications in autism spectrum disorder (ASD) hitherto remains controversial due to a lack of evidence about safety and tolerability. In this regard, genotyping the metabolizing enzyme cytochrome P450 (CYP) 2D6, especially its extreme phenotypes, could help to prevent drug-related adverse reactions or adverse events (AEs). There are several medications warranting CYP2D6 screening that are consumed by people with ASD, such as risperidone and aripiprazole to name a few. A naturalistic observational study was carried out in participants with ASD to analyze the influence of the CYP2D6 phenotype in drug tolerability using a local pharmacovigilance system created for this study. In this case, AEs were identified from participants' electronic health records (EHRs) and paper registries. Other variables were collected: socio-demographic information, comorbidities, and psychopharmacology prescriptions (polypharmacy defined as ≥4 simultaneous prescriptions) and doses. The genetic analysis included allelic discrimination (CYP2D6*1, *2, *3, *4, *5, *6, *10, *17, and *41) and copy number variations. All of these were used to determine theoretical phenotypes of the metabolic profiles: poor (PM); intermediate (IM); normal (NM); and ultra-rapid (UM). Sex differences were analyzed. A total of 71 participants (30 ± 10 years old, 82% male, 45% CYP2D6 NM phenotype (32 participants)) with a median of 3 (IQR 2-4) comorbidities per person, mainly urinary incontinence (32%) and constipation (22%), were included. CYP2D6 UM showed the highest rate of polypharmacy, whilst, IM participants had the highest rates of neurological and psychiatric AEs, even worse if a CYP2D6 inhibitor drug was prescribed simultaneously. CYP2D6 pharmacogenomics and the monitoring of new antipsychotic prescriptions may make a difference in medication safety in adults with ASD. Particularly in those with psychopharmacology polymedication, it can help with AE avoidance and understanding.
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Affiliation(s)
- Pura Ballester
- Pharmacology Department, Pharmacy Degree, San Antonio Catholic University, 30107 Murcia, Spain
| | - Cristina Espadas
- Bioengineering Institute, Pediatrics and Organic Chemistry Department, Miguel Hernández University of Elche (UMH), 03202 Alicante, Spain
| | - Susana Almenara
- Neuropharmacology on Pain Treatment and Neurodevelopmental Disorders, Dr. Balmis General University Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
- Clinical Pharmacology Unit, Alicante General University Hospital, 03010 Alicante, Spain
| | - Jordi Barrachina
- Neuropharmacology on Pain Treatment and Neurodevelopmental Disorders, Dr. Balmis General University Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
| | - Javier Muriel
- Neuropharmacology on Pain Treatment and Neurodevelopmental Disorders, Dr. Balmis General University Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
- Clinical Pharmacology, Pediatrics and Organic Chemistry Department, Miguel Hernández University of Elche (UMH), 03202 Alicante, Spain
| | - Enrique Ramos
- Bioengineering Institute, Pediatrics and Organic Chemistry Department, Miguel Hernández University of Elche (UMH), 03202 Alicante, Spain
| | - Natalia Toral
- San Rafael Center-San Francisco De Borja Foundation, Residential Facility, 03559 Alicante, Spain
| | - César Belda
- Infanta Leonor Center, Autism Parents Association Valencian Community Autism Association (APACV), 03010 Alicante, Spain
| | - Ana M Peiró
- Bioengineering Institute, Pediatrics and Organic Chemistry Department, Miguel Hernández University of Elche (UMH), 03202 Alicante, Spain
- Neuropharmacology on Pain Treatment and Neurodevelopmental Disorders, Dr. Balmis General University Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
- Clinical Pharmacology Unit, Alicante General University Hospital, 03010 Alicante, Spain
- Clinical Pharmacology, Pediatrics and Organic Chemistry Department, Miguel Hernández University of Elche (UMH), 03202 Alicante, Spain
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Jean YK, Gitlin MC, Reynolds J, Candiotti KA. Tramadol-associated hallucinations: a systematic review and narrative synthesis of their pathophysiology, diagnosis, and treatment. Can J Anaesth 2020; 67:360-368. [PMID: 31845292 DOI: 10.1007/s12630-019-01548-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 09/28/2019] [Accepted: 10/02/2019] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Recent prescribing trends reflect government-led efforts undertaken in both the U.S. and Canada to decrease opioid use. These provisions reflect a reduction in the use of many potent opioids in favour of tramadol. Despite the purported benefits of tramadol over other opioids, little remains known about tramadol-associated hallucinations (TAH). METHODS We conducted a systematic literature search in Embase, Medline, Cochrane CENTRAL, CINAHL, PubMed, Scopus, PAHO Virtual Health Library, MedNar, and ClinicalTrials.gov to find reported cases of hallucinations associated with the use of tramadol. For all corresponding cases reporting hallucinations secondary to tramadol use, we extracted data on patient demographics, medical management, and the details on hallucinations. Cases were categorized as "probable TAH" if the evidence supported an association between hallucinations and tramadol use, or "possible TAH" if hallucinations were attributed to tramadol use but the supporting evidence was weak. The "probable TAH" cases were further classified as "isolated TAH" if hallucinations were the primary complaint, or "other existing medical condition" if concurrent signs and symptoms alluded to a diagnosis of an existing medical condition. We then conducted a narrative synthesis of the available literature to contextualize these results. RESULTS A total of 941 articles were identified in the initial search. No observational studies or randomized clinical trials were identified with our systematic review; only case reports were found. After a thorough screening, 34 articles comprising 101 patients reported an association between tramadol use and hallucinations. Among these 101 cases, 31 were "probable TAH" and 70 were "possible TAH". Of the 31 cases of "probable TAH", 16 cases were "isolated TAH" while the remaining 15 cases belonged to "other existing medical condition". CONCLUSIONS Tramadol-associated hallucinations can result in auditory or visual disturbances, although multisensory symptoms have also been reported. The mechanism underlying TAH remains poorly understood and likely involves numerous receptor types. The relative risk of hallucinations from tramadol compared with other opioids remains unclear.
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Affiliation(s)
- Yuel-Kai Jean
- Department of Anesthesiology, Perioperative Medicine, and Pain Management, Jackson Memorial Hospital, University of Miami Miller School of Medicine, 1611 NW 12th Ave, Miami, FL, 33136, USA
| | - Melvin C Gitlin
- Department of Anesthesiology, Perioperative Medicine, and Pain Management, Jackson Memorial Hospital, University of Miami Miller School of Medicine, 1611 NW 12th Ave, Miami, FL, 33136, USA.
| | - John Reynolds
- Department of Health Informatics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Keith A Candiotti
- Department of Anesthesiology, Perioperative Medicine, and Pain Management, Jackson Memorial Hospital, University of Miami Miller School of Medicine, 1611 NW 12th Ave, Miami, FL, 33136, USA
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Pharmacogenetic Testing in Acute and Chronic Pain: A Preliminary Study. ACTA ACUST UNITED AC 2019; 55:medicina55050147. [PMID: 31100953 PMCID: PMC6572509 DOI: 10.3390/medicina55050147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/01/2019] [Accepted: 05/13/2019] [Indexed: 01/18/2023]
Abstract
Background and Objectives: Pain is one of the most common symptoms that weighs on life’s quality and health expenditure. In a reality where increasingly personalized therapies are needed, the early use of genetic tests that highlights the individual response to analgesic drugs could be a valuable help in clinical practice. The aim of this preliminary study is to observe if the therapy set to 5 patients suffering of chronic or acute pain is concordant to the Pharmacogenetic test (PGT) results. Materials and Methods: This preliminary study compares the genetic results of pharmacological effectiveness and tolerability analyzed by the genetic test Neurofarmagen Analgesia®, with the results obtained in clinical practice of 5 patients suffering from acute and chronic pain. Results: Regarding the genetic results of the 5 samples analyzed, 2 reports were found to be completely comparable with the evidences of the clinical practice, while in 3 reports the profile of tolerability and effectiveness were partially discordant. Conclusion: In light of the data not completely overlapping with results observed in clinical practice, further studies would be appropriate in order to acquire more information on the use of Neurofarmagen in routine clinical settings.
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Knezevic NN, Tverdohleb T, Knezevic I, Candido KD. The Role of Genetic Polymorphisms in Chronic Pain Patients. Int J Mol Sci 2018; 19:E1707. [PMID: 29890676 PMCID: PMC6032204 DOI: 10.3390/ijms19061707] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/23/2018] [Accepted: 06/01/2018] [Indexed: 01/11/2023] Open
Abstract
It is estimated that the total annual financial cost for pain management in the U.S. exceeds 100 billion dollars. However, when indirect costs are included, such as functional disability and reduction in working hours, the cost can reach more than 300 billion dollars. In chronic pain patients, the role of pharmacogenetics is determined by genetic effects on various pain types, as well as the genetic effect on drug safety and efficacy. In this review article, we discuss genetic polymorphisms present in different types of chronic pain, such as fibromyalgia, low back pain, migraine, painful peripheral diabetic neuropathy and trigeminal neuralgia. Furthermore, we discuss the role of CYP450 enzymes involved in metabolism of drugs, which have been used for treatment of chronic pain (amitriptyline, duloxetine, opioids, etc.). We also discuss how pharmacogenetics can be applied towards improving drug efficacy, shortening the time required to achieve therapeutic outcomes, reducing risks of side effects, and reducing medical costs and reliance upon polypharmacy.
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Affiliation(s)
- Nebojsa Nick Knezevic
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, 836 W. Wellington Ave. Suite 4815, Chicago, IL 60657, USA.
- Department of Anesthesiology, College of Medicine, University of Illinois, Chicago, IL 60612, USA.
- Department of Surgery, College of Medicine, University of Illinois, Chicago, IL 60612, USA.
| | - Tatiana Tverdohleb
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, 836 W. Wellington Ave. Suite 4815, Chicago, IL 60657, USA.
| | - Ivana Knezevic
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, 836 W. Wellington Ave. Suite 4815, Chicago, IL 60657, USA.
| | - Kenneth D Candido
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, 836 W. Wellington Ave. Suite 4815, Chicago, IL 60657, USA.
- Department of Anesthesiology, College of Medicine, University of Illinois, Chicago, IL 60612, USA.
- Department of Surgery, College of Medicine, University of Illinois, Chicago, IL 60612, USA.
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