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Bae K. Efficacy of herbal treatments for functional dyspepsia: Meta-analyses after subgroup reclassification. Phytother Res 2024. [PMID: 38987526 DOI: 10.1002/ptr.8290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 06/01/2024] [Accepted: 06/23/2024] [Indexed: 07/12/2024]
Affiliation(s)
- Kyeore Bae
- National Agency for Korean Medicine Innovative Technologies Development, National Institute for Korean Medicine Development (NIKOM), Seoul, Republic of Korea
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Ha NY, Kim JW, Kim J. Clinical efficacy of Yukgunja-tang combined with a proton pump inhibitor for refractory gastroesophageal reflux disease: study protocol for randomized, double-blind, double-dummy clinical trial. BMC Complement Med Ther 2023; 23:444. [PMID: 38062418 PMCID: PMC10704821 DOI: 10.1186/s12906-023-04283-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Yukgunja-tang (YGJ) is an herbal prescription used to treat the symptoms of gastroesophageal reflux disease (GERD). Although many preclinical and clinical studies on YGJ have been conducted on GERD, there is a lack of evidence from blinded studies to exclude placebo effects. Therefore, this protocol proposes a clinical trial that is single-centered, randomized, double-blinded, double-dummy to objectively evaluate the efficacy and safety of co-administered YGJ and rabeprazole (RPZ) in patients with GERD previously treated with proton pump inhibitors (PPIs) and still experiencing symptoms. METHODS A total of 86 participants with refractory GERD (rGERD) will be randomized in a 1:1 ratio to the treatment [YGJ and RPZ (10 mg/d)] and control groups [double-dose RPZ (20 mg/d)] for 4 weeks of treatment (weeks 0-4) followed by 4 weeks of follow-up (weeks 4-8). The Frequency Scale for the Symptoms of GERD will be analyzed for the primary endpoint. Reflux Disease Questionnaire, Reflux Symptom Score, GERD-Health Related Quality of Life, Overall Treatment Evaluation, Spleen Qi Deficiency Questionnaire, Damum Questionnaire, and dyspepsia Visual Analogue Scale will be used to evaluate treatment effects on GERD related symptoms and quality of life and to compare treatment effects by subgroups. Safety tests will be analyzed by investigating adverse events. DISCUSSION This clinical trial will be the first rigorous double-blind, double-dummy, placebo-controlled study to precisely evaluate the efficacy and safety of the combination of YGJ and PPIs in the treatment of rGERD. The results of this study will provide a reliable clinical basis for selecting botanical drug treatments for patients with rGERD. TRIAL REGISTRATION Clinical Research Information Service (registration number: KCT0008600, July 13, 2023, https://cris.nih.go.kr ).
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Affiliation(s)
- Na-Yeon Ha
- Department of Digestive Diseases, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Division of Digestive Diseases, Department of Korean Internal Medicine, Kyung Hee University Korean Medicine Hospital, Seoul, 02447, Republic of Korea
| | - Jung-Wook Kim
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jinsung Kim
- Department of Digestive Diseases, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea.
- Division of Digestive Diseases, Department of Korean Internal Medicine, Kyung Hee University Korean Medicine Hospital, Seoul, 02447, Republic of Korea.
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Lee B, Ha NY, Park HJ, Kim AR, Kwon OJ, Cho JH, Shin SM, Kim J, Yang C. Herbal Medicine Yukgunja-Tang for Functional Dyspepsia: A Protocol for a Randomized, Controlled, Multicenter Clinical Trial. Healthcare (Basel) 2023; 11:healthcare11101456. [PMID: 37239742 DOI: 10.3390/healthcare11101456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/09/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
The herbal medicine Yukgunja-tang has been widely used for the treatment of functional dyspepsia (FD) in the clinical setting of East Asian traditional medicine. This paper presents a protocol for a randomized, assessor-blind, controlled, multicenter, three-arm parallel clinical trial comparing the effectiveness, safety, and cost-effectiveness of Yukgunja-tang with Pyeongwi-san and usual care. A total of 140 participants with Rome IV-diagnosed FD will be randomly assigned to either the Yukgunja-tang (n = 56), Pyeongwi-san (n = 56), or usual care (n = 28) groups. All participants will be educated on dietary guidelines for FD patients. Participants in the Yukgunja-tang and Pyeongwi-san groups will take investigational products for 6 weeks. All participants will be assessed for clinical parameters at weeks 0, 3, 6, 9, and 24. The primary outcome will be measured on the total dyspepsia symptom scale, and the secondary outcome will include the single dyspepsia symptom scale, overall treatment effect, the visual analog scale for dyspepsia, FD-related quality of life, hospital anxiety and depression scale, EuroQol-5 dimension, pattern identification, and serum levels of acyl-ghrelin and deacyl-ghrelin. Adverse events and laboratory tests will be monitored for safety assessment. The results will provide evidence of the effectiveness, safety, and cost-effectiveness of Yukgunja-tang in the treatment of FD.
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Affiliation(s)
- Boram Lee
- KM Science Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Na-Yeon Ha
- Division of Digestive Diseases, Department of Internal Korean Medicine, Kyung Hee University Medical Center, Seoul 02447, Republic of Korea
| | - Hyo-Ju Park
- Clinical Research Coordinating Team, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Ae-Ran Kim
- Clinical Research Coordinating Team, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - O-Jin Kwon
- KM Science Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Jung-Hyo Cho
- Department of Internal Medicine, Daejeon Korean Medicine Hospital of Daejeon University, Daejeon 35235, Republic of Korea
| | - Seon Mi Shin
- Department of Internal Medicine, College of Korean Medicine, Semyung University, Jecheon-si 27136, Republic of Korea
| | - Jinsung Kim
- Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Medical Center, Seoul 02447, Republic of Korea
| | - Changsop Yang
- KM Science Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
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Ha NY, Ko SJ, Park JW, Kim J. Efficacy and safety of the herbal formula Naesohwajung-tang for functional dyspepsia: a randomized, double-blind, placebo-controlled, multi-center trial. Front Pharmacol 2023; 14:1157535. [PMID: 37251334 PMCID: PMC10213234 DOI: 10.3389/fphar.2023.1157535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023] Open
Abstract
Background: Current treatment and management options for functional dyspepsia (FD) often fail to alleviate symptoms. Naesohwajung-tang (NHT) is a herbal formula frequently used to treat functional dyspepsia in traditional Korean medicine. However, few animal and case reports on the use of Naesohwajung-tang for functional dyspepsia treatment exist, and the clinical evidence remains deficient. Objectives: This study aimed to evaluate the efficacy of Naesohwajung-tang in patients with functional dyspepsia. Methods: We enrolled 116 patients with functional dyspepsia at two study sites in this 4 weeks, randomized, double-blind, placebo-controlled trial and randomly assigned them to either the Naesohwajung-tang or placebo group. To evaluate the efficacy of Naesohwajung-tang, the primary endpoint was a score on the total dyspepsia symptom (TDS) scale after treatment. The overall treatment effect (OTE), single dyspepsia symptom (SDS) scale, food retention questionnaire (FRQ), Damum questionnaire (DQ), functional dyspepsia-related quality of life (FD-QoL) questionnaire, and gastric myoelectrical activity measured using electrogastrography were evaluated as secondary outcomes. Laboratory tests were performed to confirm the safety of the intervention. Results: The 4 weeks administration of Naesohwajung-tang granules demonstrated a significantly higher reduction in the total dyspepsia symptom (p < 0.05) and a higher degree of improvement in the total dyspepsia symptom (p < 0.01) than the placebo group. Patients who underwent Naesohwajung-tang had a significantly higher overall treatment effect and a greater increase in the degree of improvement in scores such as epigastric burning, postprandial fullness, early satiation, functional dyspepsia-related quality of life, and Damum questionnaire (p < 0.05). Additionally, the Naesohwajung-tang group showed a greater effect in preventing a decrease in the percentage of normal gastric slow waves after meals than the placebo group. As a result of subgroup analyses using the degree of improvement in total dyspepsia symptom, Naesohwajung-tang was found to be more effective than placebo in female, younger patients (<65 years), with a high body-mass index (≥22), overlap type, food retention type, and Dampness and heat in the spleen and stomach systems pattern. There was no significant difference in the incidence of adverse events between the two groups. Conclusion: This is the first randomized clinical trial to verify that Naesohwajung-tang leads on symptom relief in patients with functional dyspepsia. Clinical Trial Registration: https://cris.nih.go.kr/cris/search/detailSearch.do/17613, identifier KCT0003405.
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Affiliation(s)
- Na-Yeon Ha
- Division of Digestive Diseases, Department of Internal Korean Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Seok-Jae Ko
- Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Jae-Woo Park
- Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Jinsung Kim
- Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
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Pak ME, Yang HJ, Li W, Kim JK, Go Y. Yuk-Gunja-Tang attenuates neuronal death and memory impairment via ERK/CREB/BDNF signaling in the hippocampi of experimental Alzheimer’s disease model. Front Pharmacol 2022; 13:1014840. [PMID: 36386241 PMCID: PMC9643579 DOI: 10.3389/fphar.2022.1014840] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/12/2022] [Indexed: 11/23/2022] Open
Abstract
Yuk-Gunja-Tang (YG) is the Korean traditional medicine in East Asia for gastrointestinal disorders. In the present study, we determined the protective effects of YG on glutamate-induced cytotoxicity in HT22 hippocampal neuronal cells and mice with scopolamine-induced memory impairment. In vitro assessments were performed using a cell viability assay, flow cytometry, and Western blotting, while in vivo assessments were performed in C57BL/6 mice administered with YG for 7 days and injected with scopolamine (1 mg/kg) for 7 days. We assessed the memory function using the Y-maze, novel object recognition, and passive avoidance tests. Protein expression analyses and histological analyses were performed using hippocampal tissues. YG treatment significantly restored cell viability against glutamate-induced apoptosis. It significantly suppressed glutamate-induced reactive oxygen species accumulation and mitochondrial dysfunction. It also increased Bcl-2 protein expression and decreased HO-1 protein expression. It activated the extracellular signal-regulated kinase/cAMP response element binding protein (ERK/CREB) signaling pathway and increased the expression of brain-derived neurotrophic factor (BDNF) under excitotoxic conditions. In the scopolamine-injected mice, YG ameliorated memory impairment in the Y-maze, novel object recognition, and passive avoidance tests; restored dysfunction in the acetylcholine, acetylcholinesterase expression levels; reduced neuronal damage in Nissl staining; and increased BDNF and phosphorylated ERK and CREB levels in Western blotting and immunofluorescence staining. Thus, YG exerted neuroprotective effects by activating ERK/CREB/BDNF signaling in the hippocampus, indicating its potential cognition-enhancing effects, especially in Alzheimer’s disease.
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Kim SK, Joung JY, Ahn YC, Jung IC, Son CG. Beneficial Potential of Banha-Sasim-Tang for Stress-Sensitive Functional Dyspepsia via Modulation of Ghrelin: A Randomized Controlled Trial. Front Pharmacol 2021; 12:636752. [PMID: 33959008 PMCID: PMC8093827 DOI: 10.3389/fphar.2021.636752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Functional dyspepsia (FD) is a highly complex pathophysiologic disease, which shows low recovery and high relapse rates. Therefore, a growing number of clinicians and patients are looking for alternative herbal medicine. Banha-Sasim-Tang (BST) is an herbal prescription for treating a wide range of dyspepsia in traditional Korean medicine (TKM). Aim of the study: This study aimed to evaluate the efficacy of BST on FD in patients with psychological stress-related symptoms and to investigate the involvement of ghrelin. This study is registered at https://cris.nih.go.kr/with the identification number KCT 0002811. Materials and methods: A total of 31 participants with FD who met the Rome IV criteria and the psychological stress-related pattern were enrolled in a double-blind, randomized, and controlled study. Participants were randomly assigned to the BST group (10 g twice daily for 4 weeks) or placebo group. The primary endpoint was a change in the Nepean Dyspepsia Index-Korean (NDI-K) score. The secondary endpoints were changes in the Visual Analog Scale (VAS) scores and plasma ghrelin level. Results: All participants completed the study (n = 15 for BST, n = 16 for placebo). BST decreased NDI-K scores compared with placebo, but the difference was not statistically significant (37.40 ± 27.40 vs 22.50 ± 23.85, p = 0.12). VAS scores and plasma total ghrelin levels were significantly improved in patients who were treated with BST (3.19 ± 1.60 vs 1.38 ± 2.85, p = 0.03 for VAS and 105.69 ± 287.89 vs -142.31 ± 314.32, p = 0.03 for total ghrelin). No BST-related adverse effects were observed during the trial. Conclusion: Our results indicate the clinical potential of BST for FD patients and are the first study to show the modulation of plasma ghrelin as one of its corresponding mechanisms. Clinical Trial Registration: https://cris.nih.go.kr/, identifier KCT 0002811.
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Affiliation(s)
- Sul-Ki Kim
- Liver and Immunology Research Center, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea
| | - Jin-Yong Joung
- Liver and Immunology Research Center, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea
| | - Yo-Chan Ahn
- Department of Health Service Management, Daejeon University, Daejeon, Republic of Korea
| | - In-Chul Jung
- Departments of Neuropsychiatry, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea
| | - Chang-Gue Son
- Liver and Immunology Research Center, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea
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Jeon SR, Nam D, Kim TH. Dropouts in randomized clinical trials of Korean medicine interventions: a systematic review and meta-analysis. Trials 2021; 22:176. [PMID: 33648566 PMCID: PMC7923634 DOI: 10.1186/s13063-021-05114-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 02/09/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The dropout rate is an important determinant of outcomes in randomized controlled trials (RCTs) and should be carefully controlled. This study explored the current dropout rate in studies of Korean medicine (KM) interventions by systematic evaluation of RCTs conducted in the past 10 years. METHODS Three clinical trial registries (Clinical Research Information Service, ClinicalTrials.gov, and World Health Organization International Clinical Trials Registry Platform) were searched to identify RCT protocols for KM interventions, such as acupuncture, herbal medicine, moxibustion, or cupping, and studies of mixed interventions, registered in Korea from 2009 to 2019. The PubMed, Embase, and OASIS databases were searched for the full reports of these RCTs, including published journal articles and theses. Dropout rates and the reasons for dropping out were analyzed in each report. The risk of bias in each of the included studies was assessed using the Cochrane risk of bias tool. The risk difference for dropping out between the treatment and control groups was calculated with the 95% confidence interval in a random effects model. RESULTS Forty-nine published studies were included in the review. The median dropout rate was 10% in the treatment group (interquartile range 6.7%, 17.0%) and 14% in the control group (interquartile range 5.4%, 16.3%) and was highest in acupuncture studies (12%), followed by herbal medicine (10%), moxibustion (8%), and cupping (7%). Loss to follow-up was the most common reason for dropping out. The risk difference for dropping out between the intervention and control groups was estimated to be 0.01 (95% confidence interval - 0.02, 0.03) in KM intervention studies. CONCLUSIONS This review found no significant difference in the dropout rate between studies according to the type of KM intervention. We recommend allowance for a minimum dropout rate of 15% in future RCTs of KM interventions. REVIEW PROTOCOL REGISTRATION PROSPERO CRD42020141011.
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Affiliation(s)
- Sae-rom Jeon
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, 26 Kyung Heedae-ro, Dongdaemun-gu, Seoul, 02447 Republic of Korea
| | - Dongwoo Nam
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, 26 Kyung Heedae-ro, Dongdaemun-gu, Seoul, 02447 Republic of Korea
| | - Tae-Hun Kim
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, 26 Kyung Heedae-ro, Dongdaemun-gu, Seoul, 02447 Republic of Korea
- Department of Korea8n Medicine Clinical Trial Center, College of Korean Medicine, Kyung Hee University, 23 Kyung Heedae-ro, Dongdaemun-gu, Seoul, 02447 Republic of Korea
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