1
|
Ah H, Ld P, Pn T, Depesina D, Chaudhury N, Oe O, M S, Cm D. Liothyronine (LT3) prescribing in England: Are cost constraints inhibiting guideline implementation? Clin Endocrinol (Oxf) 2024; 101:62-68. [PMID: 38752469 DOI: 10.1111/cen.15061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 04/01/2024] [Accepted: 04/08/2024] [Indexed: 06/12/2024]
Abstract
BACKGROUND Primary hypothyroidism affects about 3% of the general population in Europe. In most cases people with hypothyroidism are treated with levothyroxine. In the context of the 2023 British Thyroid Association guidance and the 2020 Competitions and Marketing Authority (CMA) ruling, we examined prescribing data for levothyroxine, Natural desiccated thyroid (NDT) and liothyronine by dose, regarding changes over the years 2016-2022. DESIGN Monthly primary care prescribing data for each British National Formulary code were analysed for levothyroxine, liothyronine and NDT. PATIENTS AND MEASUREMENTS The rolling 12-month total/average of cost or prescribing volume was used to identify the moment of change. Results included number of prescriptions, the actual costs, and the cost/prescription/mcg of drug. RESULTS Liothyronine: In 2016 94% of the total 74,500 prescriptions were of the 20 mcg dose. In 2020 the percentage prescribed in the 5 mcg and 10 mcg doses started to increase so that by 2022 each reached nearly 27% of total liothyronine prescribing. The average cost/prescription in 2016 of 20 mcg was £404/prescription and this fell by 80% to £101 in 2022; while the 10 mcg cost of £348/prescription fell by only 35% to £255 and the 5 mcg cost of £355/prescription fell by 38% to £242/prescription. The total prescriptions of liothyronine in 2016 were 74,605, falling by 30% up to 2019 when they started to grow again - most recently at 60,990-15% lower than the 2016 figure, with the result that total costs fell by 70% to £9 m/year. CONCLUSIONS Liothyronine costs fell after the CMA ruling but remain orders of magnitude higher than for levothyroxine. The remaining 0.2% of patients with liothyronine treated hypothyroidism are still absorbing 16% of medication costs. The lower liothyronine 5cmg and 10 mcg doses as recommended by BTA are 240% the costs of the 20 mcg dose. Thus, following latest BTA guidance which recommends the lower liothyronine doses still incurs substantial additional costs vs the prescribing liothyronine in the no longer recommended treatment regime. High drug price continues to impact clinical decisions, potentially limiting liothyronine therapy availability to a considerable number of patients who could benefit from this treatment.
Collapse
Affiliation(s)
- Heald Ah
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Dcepartment of Endocrinology and Diabetes, Salford Royal Hospital, Salford, UK
| | - Premawardhana Ld
- Thyroid Research Group, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| | - Taylor Pn
- Thyroid Research Group, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| | | | - Nadia Chaudhury
- Department of Endocrinology and Diabetes, University Hospitals Coventry and Warwickshire, Coventry, UK
| | - Okosieme Oe
- Thyroid Research Group, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| | | | - Dayan Cm
- Thyroid Research Group, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| |
Collapse
|
2
|
Larisch R, Midgley JEM, Dietrich JW, Hoermann R. Effect of Radioiodine Treatment on Quality of Life in Patients with Subclinical Hyperthyroidism: A Prospective Controlled Study. Nuklearmedizin 2024; 63:176-187. [PMID: 38262472 DOI: 10.1055/a-2240-8087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Radioiodine treatment (RIT) has a high success rate in both the treatment of hyperthyroidism and improving the quality of life (QoL) of symptomatic patients. In asymptomatic patients with subclinical hyperthyroidism thyroid related QoL outcomes are less well known. METHODS Study aim was to evaluate thyroid-related QoL in patients with subclinical hyperthyroidism mostly due to toxic nodular goitre undergoing RIT, compared to a control group of euthyroid subjects. Study design was monocentric, prospective, controlled. Fifty control subjects were enrolled and 51 RIT patients. Most subjects were examined at least twice at an interval of 6 months, with visits immediately before and 6 months after treatment in the RIT group. QoL was estimated with the ThyPRO questionnaire, using its composite scale as primary outcome. Treatment effect was the mean adjusted difference (MAD) between groups over time, using repeated? measures mixed? effects models. RESULTS TSH concentrations were lower in the RIT group prior to treatment and recovered thereafter slightly above the level of the control group. Correspondingly, QoL improved significantly after 6 months from a worse level in the RIT group, compared to controls (MAD -10.3 [95% CI -14.9, -5.7], p<0.001). QoL improvements were strong for general items, but less pronounced for the hyperthyroid domain. Compared to controls, thyroid volume, thyroid functional capacity (SPINA-GT) and deiodinase activity (SPINA-GD) were significantly reduced in the RIT group. CONCLUSION Patients with subclinical hyperthyroidism improve both biochemically and in their QoL after RIT, compared to controls. QoL assessment should have a wider role in clinical practice to complement biochemical tests and help with treatment decisions.
Collapse
Affiliation(s)
- Rolf Larisch
- Clinic of Nuclear Medicine, Klinikum Lüdenscheid, Lüdenscheid, Germany
| | - John E M Midgley
- North Lakes Clinical, Ilkley LS29 8PT, United Kingdom of Great Britain and Northern Ireland
| | - Johannes W Dietrich
- Medical Hospital I, Endocrinology and Diabetes Department, Ruhr University of Bochum, Bochum, Germany
- Ruhr Center for Rare Diseases (CeSER), Bochum, Germany
| | - Rudolf Hoermann
- Clinic of Nuclear Medicine, Klinikum Lüdenscheid, Lüdenscheid, Germany
| |
Collapse
|
3
|
Abstract
Levothyroxine (LT4) is effective for most patients with hypothyroidism. However, a minority of the patients remain symptomatic despite the normalization of serum thyrotropin levels. Randomized clinical trials including all types of patients with hypothyroidism revealed that combination levothyroxine and liothyronine (LT4+LT3) therapy is safe and is the preferred choice of patients versus LT4 alone. Many patients who do not fully benefit from LT4 experience improved quality of life and cognition after switching to LT4+LT3. For these patients, new slow-release LT3 formulations that provide stable serum T3 levels are being tested. In addition, progress in regenerative technology has led to the development of human thyroid organoids that restore euthyroidism after being transplanted into hypothyroid mice. Finally, there is a new understanding that, under certain conditions, T3 signaling may be compromised in a tissue-specific fashion while systemic thyroid function is preserved. This is seen, for example, in patients with metabolic (dysfunction)-associated fatty liver disease, for whom liver-selective T3-like molecules have been utilized successfully in clinical trials.
Collapse
Affiliation(s)
- Antonio C Bianco
- Section of Adult and Pediatric Endocrinology, Diabetes, and Metabolism, University of Chicago School of Medicine, Chicago, Illinois, USA;
| |
Collapse
|
4
|
Heald AH, Taylor P, Premawardhana L, Stedman M, Dayan C. Natural desiccated thyroid for the treatment of hypothyroidism? Front Endocrinol (Lausanne) 2024; 14:1309159. [PMID: 38260143 PMCID: PMC10801060 DOI: 10.3389/fendo.2023.1309159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 12/06/2023] [Indexed: 01/24/2024] Open
Abstract
Primary hypothyroidism affects about 3% of the general population in Europe. Early treatments in the late 19th Century involved subcutaneous as well as oral administration of thyroid extract. Until the early 1970s, the majority of people across the world with hypothyroidism were treated with natural desiccated thyroid (NDT) (derived from pig thyroid glands) in various formulations, with the majority of people since then being treated with levothyroxine (L-thyroxine). There is emerging evidence that may account for the efficacy of liothyronine (NDT contains a mixture of levothyroxine and liothyronine) in people who are symptomatically unresponsive to levothyroxine. While this is a highly selected group of people, the severity and chronicity of their symptoms and the fact that many patients have found their symptoms to be alleviated, can be viewed as valid evidence for the potential benefit of NDT when given after careful consideration of other differential diagnoses and other treatment options.
Collapse
Affiliation(s)
- Adrian H. Heald
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
- Department of Endocrinology and Diabetes, Salford Royal Hospital, Salford, United Kingdom
| | - Peter Taylor
- Thyroid Research Group, Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Lakdasa Premawardhana
- Thyroid Research Group, Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| | | | - Colin Dayan
- Thyroid Research Group, Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
| |
Collapse
|
5
|
Khoshaba L, Patarkatsi L. Switching from Natural Desiccated Thyroid to a Liquid Formulation of Levothyroxine for Hypothyroidism. Case Rep Endocrinol 2023; 2023:4252894. [PMID: 38179415 PMCID: PMC10766474 DOI: 10.1155/2023/4252894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 11/07/2023] [Accepted: 12/16/2023] [Indexed: 01/06/2024] Open
Abstract
Natural desiccated thyroid (NDT) is a treatment option for many patients with hypothyroidism, but some still exhibit symptoms despite achievement of normal levels of thyroid stimulating hormone (TSH). In this retrospective case series, 13 patients with hypothyroid symptoms were switched from NDT to a liquid formulation of levothyroxine (LT4; Tirosint®-SOL). Laboratory values ≥4 weeks following the switch showed a decrease in TSH levels, maintenance of free triiodothyronine (fT3) levels, and significant increases in free thyroxine (fT4) levels. Patients reported good tolerability, and case summaries are presented for four patients. In summary, this small retrospective case series showed that patients who still had hypothyroid symptoms despite use of NDT can respond well to oral LT4 liquid formulation, including patients who are intolerant of gluten and/or lactose or on hormone replacement therapy or iron supplementation.
Collapse
|
6
|
Casula S, Ettleson MD, Bianco AC. Are We Restoring Thyroid Hormone Signaling in Levothyroxine-Treated Patients With Residual Symptoms of Hypothyroidism? Endocr Pract 2023; 29:581-588. [PMID: 37419565 PMCID: PMC11221272 DOI: 10.1016/j.eprac.2023.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 07/09/2023]
Abstract
INTRODUCTION Levothyroxine (LT4) at doses that maintain the serum thyroid-stimulating hormone levels within the normal range constitutes the standard of care for the treatment of hypothyroidism. After a few months, this eliminates the signs and symptoms of overt hypothyroidism in the majority of patients, owing to the endogenous activation of thyroxine to triiodothyronine, the biologically active thyroid hormone. Still, a small percentage of the patients (10%-20%) exhibit residual symptoms, despite having normal serum thyroid-stimulating hormone levels. These symptoms include cognitive, mood, and metabolic deficits, with a significant impairment in psychological well-being and quality of life. OBJECTIVE To provide a summary of progress in the approach of patients with hypothyroidism that exhibit residual symptoms despite treatment. METHODS We reviewed the current literature and here we focused on the mechanisms leading to a deficiency of T3 in some LT4-treated patients, the role of residual thyroid tissue and the rationale for combination therapy with LT4 + liothyronine (LT3). RESULTS A score of clinical trials comparing therapy with LT4 versus LT4 + LT3 concluded that both are safe and equally effective (neither is superior); however, these trials failed to recruit a sufficiently large number of patients with residual symptoms. New clinical trials that considered LT4-treated symptomatic patients revealed that such patients benefit from and prefer therapy containing LT4 + LT3; desiccated thyroid extract has also been used with similar results. A practical approach to patients with residual symptoms and on initiation of combination therapy with LT4 + LT3 is provided. CONCLUSION A recent joint statement of the American, British, and European Thyroid Associations recommends that a trial with combination therapy be offered to patients with hypothyroidism that do not fully benefit from therapy with LT4.
Collapse
Affiliation(s)
- Sabina Casula
- Department of Endocrinology, Miami Veterans Affairs Healthcare System, Miami, Florida
| | - Matthew D Ettleson
- Section of Adult and Pediatric Endocrinology and Metabolism, University of Chicago, Chicago, Illinois
| | - Antonio C Bianco
- Section of Adult and Pediatric Endocrinology and Metabolism, University of Chicago, Chicago, Illinois.
| |
Collapse
|
7
|
Gouda N, Dimitriadou M, Sotiriou G, Christoforidis A. The impact of COVID-19 vaccination on glycaemic control in children and adolescents with type 1 diabetes mellitus on continuous glucose monitoring. Acta Diabetol 2022; 59:1609-1614. [PMID: 36069940 PMCID: PMC9449273 DOI: 10.1007/s00592-022-01968-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022]
Abstract
AIMS To investigate the impact of SARS-COV-2 vaccination on the glycaemic control in children and adolescents with T1DM wearing continuous glucose monitoring (CGM). METHODS Caregivers of children and adolescents with T1DM were questioned regarding SARS-CoV-2 vaccination during their regular visits at the Pediatric Diabetes Outpatient Clinic. Data regarding Time in Range (TIR) (glucose levels: 70-180 mg/dl) 7 days prior and 7 days after a vaccination dose were collected in patients wearing CGM and data regarding insulin daily doses were also obtained for the insulin pump users. RESULTS From a total of 135 patients eligible for SARS-CoV-2 vaccination, 70 (51.9%) children (37 boys, 52.9%) were vaccinated with at least one dose. Seven patients received only one dose, whereas two children received a third booster shot. No statistically significant difference was observed in either TIR (64.19% post vs. 65.53% pre, p = 0.158) or total daily insulin dose (40.08 U/day post vs. 39.32 U/day pre, p = 0,282). Additionally, in ten patients on Hybrid Closed-Loop System the percentage of the automated insulin boluses given post-vaccination was not statistically significant different compared to the boluses given pre-vaccination (15.80% vs. 16.90%, p = 0,491). CONCLUSIONS Vaccination against SARS-CoV-2 in children and adolescents with T1DM is safe and is not associated with immediate glucose imbalance.
Collapse
Affiliation(s)
- Niki Gouda
- 1st Paediatric Department, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, 49 Konstantinoupoleosstr, 54642, Thessaloniki, Greece
| | - Meropi Dimitriadou
- 1st Paediatric Department, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, 49 Konstantinoupoleosstr, 54642, Thessaloniki, Greece
| | - Georgia Sotiriou
- 1st Paediatric Department, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, 49 Konstantinoupoleosstr, 54642, Thessaloniki, Greece
| | - Athanasios Christoforidis
- 1st Paediatric Department, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, 49 Konstantinoupoleosstr, 54642, Thessaloniki, Greece.
| |
Collapse
|
8
|
Liu H, Li W, Zhang W, Sun S, Chen C. Levothyroxine: Conventional and novel drug delivery formulations. Endocr Rev 2022; 44:393-416. [PMID: 36412275 PMCID: PMC10166268 DOI: 10.1210/endrev/bnac030] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 10/18/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Despite the fact that levothyroxine is one of the most prescribed medications in the world, its bioavailability has been reported to be impaired by many factors, including interfering drugs or foods and concomitant diseases, and persistent hypothyroidism with a high dose of levothyroxine is thus elicited. Persistent hypothyroidism can also be induced by noninterchangeability between formulations and poor compliance. To address these issues, some strategies have been developed. Novel formulations (liquid solutions and soft-gel capsules) have been designed to eliminate malabsorption. Some other delivery routes (injections, suppositories, sprays, and sublingual and transdermal administrations) are aimed at circumventing different difficulties in dosing, such as thyroid emergencies and dysphagia. Moreover, nanomaterials have been used to develop delivery systems for the sustained release of levothyroxine to improve patient compliance and reduce costs. Some delivery systems encapsulating nanoparticles show promising release profiles. In this review, we first summarize the medical conditions that interfere with the bioavailability of oral levothyroxine and discuss the underlying mechanisms and treatments. The efficacy of liquid solutions and soft-gel capsules are systematically evaluated. We further summarize the novel delivery routes for levothyroxine and their possible applications. Nanomaterials in the levothyroxine field are then discussed and compared based on their load and release profile. We hope the article provides novel insights into the drug delivery of levothyroxine.
Collapse
Affiliation(s)
- Hanqing Liu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China
| | - Wei Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430060, Hubei, People's Republic of China
| | - Wen Zhang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430060, Hubei, People's Republic of China
| | - Shengrong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China
| | - Chuang Chen
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China
| |
Collapse
|
9
|
Cramon PK, Bjorner JB, Groenvold M, Boesen VB, Bonnema SJ, Hegedüs L, Feldt-Rasmussen U, Rasmussen ÅK, Watt T. Implementation of thyroid-related patient-reported outcomes in routine clinical practice. Front Endocrinol (Lausanne) 2022; 13:1000682. [PMID: 36246917 PMCID: PMC9554589 DOI: 10.3389/fendo.2022.1000682] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/09/2022] [Indexed: 11/26/2022] Open
Abstract
Patient-reported outcomes (PROs) are increasingly used in clinical practice to improve clinical care. Multiple studies show that systematic use of PROs can enhance communication with patients and improve patient satisfaction, symptom management and quality of life. Further, such data can be aggregated to examine health levels for patient groups, improve quality of care, and compare patient outcomes at the institutional, regional or national level. However, there are barriers and challenges that should be handled appropriately to achieve successful implementation of PROs in routine clinical practice. This paper briefly overviews thyroid-related PROs, describes unsolved quality of life issues in benign thyroid diseases, provides examples of routine collection of PROs, and summarizes key points facilitating successful implementation of thyroid-related PROs in routine clinical practice. Finally, the paper touches upon future directions of PRO research.
Collapse
Affiliation(s)
- Per Karkov Cramon
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jakob Bue Bjorner
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- QualityMetric Incorporated, LLC, Johnston, RI, United States
| | - Mogens Groenvold
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- Palliative Care Research Unit, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | - Victor Brun Boesen
- Department of Internal Medicine, Copenhagen University Hospital Herlev Gentofte, Copenhagen, Denmark
| | - Steen Joop Bonnema
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Laszlo Hegedüs
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Åse Krogh Rasmussen
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Torquil Watt
- Department of Internal Medicine, Copenhagen University Hospital Herlev Gentofte, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences, University of Copenhagen, Copenhagen, Denmark
- *Correspondence: Torquil Watt,
| |
Collapse
|