• Title/Summary/Keyword: Randomized Trial

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A Systematic review for the development of cosmetic clinical trial protocol (화장품 임상시험 프로토콜 개발을 위한 체계적 문헌 고찰)

  • Jo, Ga-Won;Hwang, Chung-Yeon;Hong, Seok-Hoon;Kim, Nam-Kwen
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.26 no.1
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    • pp.104-117
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    • 2013
  • Objective : The aim of this review is to development of clinical trial protocol for against cosmetics as a treatment of dry skin condition. Methods : We searched the literature from 2002 through April 2012 using 5 databases. We included randomized controlled trials(RCTs) in which human participants with dry skin condition as chief complaint were treated with cosmetics. The methodological quality of all RCTs was using the Jadad score. Results : Nine RCTs met the inclusion criteria. Cosmetic types included cream (7 trials), lotion (1 trial), oil (1 trial) and body wash (1 trial). The methodological quality of the trials was generally low (Jadad score: mean 1.78; range, 1 to 3). Conclusions : The evidence for cosmetics as an effective treatment for dry skin condition(xerosis) is currently scarce and of poor quality, and is therefore inconclusive. More rigorous studies are warranted.

Alternation of Topical Heat and Cold for Chronic Low Back Pain : A Randomized Controlled Pilot Trial

  • Choi, Young Doo;Jo, Su Jeong;Jung, Chan Yung;Kim, Kap Sung;Lee, Seung Deok
    • Journal of Acupuncture Research
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    • v.33 no.2
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    • pp.77-87
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    • 2016
  • Objectives : This is a pilot study for a large randomized controlled trial to investigate the efficacy and safety of a newly developed contrast therapy device-- alternating topical heat and cold -- for patients with chronic low back pain. The main objective of this study is to confirm the feasibility of the study design. Methods : The design was a randomized, 2-arm, parallel-group, single-blind, placebo controlled trial. Patients in each group received real or sham contrast therapy in an acupuncture point 10 times over four weeks. The primary outcome measure was pain intensity on a 100-mm visual analogue scale (VAS). The secondary outcomes were back-related dysfunction based on the Oswestry Disability Index (ODI), the Roland-Morris disability questionnaire (RMDQ), and range of motion of lumbar spine based on the modified Schober test (mSchober test), Finger-to-Floor distance (FTF distance), and Finger-to-Thigh distraction (FTT distraction). Results : A total of 30 subjects with chronic low back pain were randomly assigned to a contrast therapy group (n=15) or a sham group (n=15). A repeated-measures analysis of variance showed statistically significant group time interaction for VAS, RMDQ, mSchober test and FTF distance (p<0.05). The treatment group showed significant improvement in pain intensity and functional disability as compared to the sham group. Conclusion : Contrast therapy may be an effective and safe treatment for chronic low back pain.

Review of Intention-to-Treat Analysis in Randomized Controlled Trials (무작위 대조군 실험 연구에서 치료의향분석 (Intention-to-treat analysis)에 대한 고찰)

  • Kim, Junghun Aj
    • Therapeutic Science for Rehabilitation
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    • v.9 no.2
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    • pp.27-38
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    • 2020
  • Introduction : This review aims to introduce an intention-to-treat analysis(ITT) method and demonstrate the importance of rigorous utilization of this method to researchers in Korea. Discussion : ITT analysis includes all data as results in randomized control trials (RCT). Thereby the result of RCT is high validated to adapt in the real-world so that the result should be expected at clinical practice. Therefore, many RCT quality assessment tools include the question of the utilization of ITT analysis in individual trials. However, many researchers omit to report ITT, not utilize ITT or use ITT incorrectly. Conclusion : Through this review, more Korean researchers may understand and utilize ITT which is expected to enhance the quality of RCT papers.

A Review of Randomized Controlled Trial Studies during 5 Years for Treatment of Chondromalacia Patella Using China National Knowledge Infrastructure Database (슬개골 연골연화증의 무작위대조군 연구 최근 5년간의 경향 분석: 중국지식기초설시공정(中國智識基礎設施工程)(CNKI) 검색을 중심으로)

  • Choi, Yun-Young;Yang, Su-Hyeon;Jang, Yeong-Suk;Kim, Hyeon-Jin;Ahn, Jae-Young;Lee, Soo-Jin;Oh, Da-Yoon;Hong, Noo-Ri;Kim, Doo-Hee
    • Journal of Korean Medicine Rehabilitation
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    • v.30 no.2
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    • pp.77-93
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    • 2020
  • Objectives This study was conducted to investigate randomized controlled trial studies about clinical treatment of traditional Chinese medicine for chondromalacia patellae. Methods We searched randomized controlled trial studies about traditional Chinese medicine treatment for chondromalacia patella through China National Knowledge Infrastructure (CNKI). 27 articles published from 2015-2019 were finally chosen and analyzed by published year, number of samples, evaluation criteria, treatment duration, treatment method. Results Various treatments such as acupuncture therapy, herbal medicine, moxibustion therapy, manipulation, external treatment were practiced in China. Most of them were combined with western medicine or injection, rehabilitation therapy. Conclusions There were diverse studies about traditional Chinese medical treatment for chondromalacia patellae in China. In Korea, more clinical research about chondromalacia patellae is still needed. This study will be helpful for future research on Korean medicine for chondromalacia patellae.

Preventive effects of ginseng against atherosclerosis and subsequent ischemic stroke: A randomized controlled trial (PEGASUS trial)

  • Kwon, Boseong;Song, Yunsun;Kim, Joong-Goo;Lee, Dongwhane;Lee, Sang-hun;Cho, Young-Keol;Kim, Jong S.;Suh, Dae Chul
    • Journal of Ginseng Research
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    • v.46 no.4
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    • pp.585-591
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    • 2022
  • Background: Korean Red Ginseng (KRG) extract has been shown to have beneficial effects in patients with atherosclerosis, suggesting that KRG extract may be effective in preventing subsequent ischemic stroke in patients with severe atherosclerosis. Methods: This double-blind, placebo-controlled trial randomized patients with severe atherosclerosis in major intracranial arteries or extracranial carotid artery, to ginseng group and placebo group. They were given two 500-mg KRG tablets or identical placebo tablets twice daily for 12 months according to randomization. The primary endpoint was the composite of cerebral ischemic stroke and transient ischemic attack during 12 months after randomization. The secondary endpoints were change in volumetric blood flow of the intracranial vessels and the incidence of newly developed asymptomatic ischemic lesions. Any adverse events were monitored. Results: Fifty-eight patients were randomized from June 2016 to June 2017, 29 to ginseng and 29 to placebo, and 52 (28 and 24, respectively) completed the study. One patient in the placebo group, but none in the ginseng group, experienced ischemic symptoms (p = 0.46). Changes in volumetric blood flow and the presence of ischemic brain lesions did not differ significantly in the two groups, and none of these patients experienced adverse drug reactions. Conclusion: Ginseng was well tolerated by patients with severe atherosclerosis, with these patients showing good compliance with ginseng dosing. Ginseng did not show significant effects compared with placebo, although none of the ginseng-treated patients experienced ischemic events. Long-term studies in larger patient populations are required to test the effect of ginseng.

Efficacy and Safety of Banhahubak-Tang for Depression Treatment: Study Protocol for a Randomized, Waitlist-Controlled Trial

  • Seung-Ho, Lee;Yunna, Kim;Dohyung, Kwon;Seung-Hun, Cho
    • Journal of Oriental Neuropsychiatry
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    • v.33 no.4
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    • pp.389-400
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    • 2022
  • Objectives: Depression is a highly prevalent disease, and the market for antidepressant drugs continues to grow at a steady rate. Although current antidepressants are reported to be effective, because of their low remission rate and side effects, new antidepressants are needed. The use of Banhahubak-tang (BHT) to treat the symptoms of depression is supported by experimental evidence. The proposed study will evaluate the efficacy and safety of BHT in treating depression. Methods: A randomized, waitlist-controlled, parallel clinical trial will be conducted to assess the efficacy of BHT in depression. A total of 84 participants with depression will be randomized into the intervention group or waitlist-control group at a 1:1 ratio. Patients in the intervention group will be administered BHT three times a day for four weeks and followed up for four more weeks after therapy completion. Patients in the waitlist-control group will undergo the same intervention and follow-up after a four-week waiting period. The primary outcome is change in the Korean version of the Hamilton Depression Rating Scale (K-HDRS) scores for major depressive disorders after four weeks. The secondary outcomes include scores on the K-HDRS, Korean Symptom Check List 95 (KSCL-95), Insomnia Severity Index (ISI), State-Trait Anxiety Inventory-Korean version (STAI-K), State-Trait Anger Expression Inventory-Korean version (STAXI-K), and the Instrument on Pattern Identifications for Depression and EuroQol-5 Dimension (EQ-5D). Conclusions: This trial will provide high-quality clinical evidence of the efficacy and safety of BHT in the management of depression.

A randomized, double-blind, placebo-controlled pilot study to assess the effects of protopanaxadiol saponin-enriched ginseng extract and pectinase-processed ginseng extract on the prevention of acute respiratory illness in healthy people

  • Hwang, Jeong-Hwan;Park, Soo-Hyun;Choi, Eun-Kyung;Jung, Su-Jin;Pyo, Mi Kyung;Chae, Soo-Wan
    • Journal of Ginseng Research
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    • v.44 no.5
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    • pp.697-703
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    • 2020
  • Background: GS-3K8 and GINST, both of which are modified ginseng extracts, have never been examined in terms of their effectiveness for the prevention of acute respiratory illness (ARI) in humans. We conducted a pilot study to assess the feasibility of performing a large-scale, randomized, controlled trial. Methods: This study was a randomized, double-blind, placebo-controlled, pilot study at a single center from October 2014 to March 2015. The 45 healthy applicants were randomly divided into the GS-3K8 (n = 15), GINST (n = 15), and placebo groups (n = 15). The study drug was administered as a capsule (500 mg/cap and 3000 mg/day). GS-3K8 contained 6.31 mg/g of Rg1, 15.05 mg/g of Re, 30.84 mg/g of Rb1, 15.02 mg/g of Rc, 12.44 mg/g of Rb2, 6.97 mg/g of Rd, 1.59 mg/g of Rg3, 3.25 mg/g of Rk1, and 4.84 mg/g of Rg5. GINST contained 7.54 mg/g of Rg1, 1.87 mg/g of Re, 5.42 mg/g of Rb1, 0.29 mg/g of Rc, 0.36 mg/g of Rb2, 0.70 mg/g of Rd, and 6.3 mg/g of compound K. The feasibility criteria were the rates of recruitment, drug compliance, and successful follow-up. The primary clinical outcome measure was the incidence of ARI. The secondary clinical outcome measures were the duration of symptoms. Results: The rate of recruitment was 11.3 participants per week. The overall rate of completed follow-up was 97.8%. The mean compliance rate was 91.64 ± 9.80%, 95.28 ± 5.75%, and 89.70 ± 8.99% in the GS-3K8, GINST, and placebo groups, respectively. The incidence of ARI was 64.3% (9/14; 95% confidence interval [CI], 31.4-91.1%), 26.7% (4/15; 95% CI, 4.3-49.0%), and 80.0% (12/15; 95% CI, 54.8-93.0%) in the GS-3K8, GINST, and placebo groups, respectively. The average days of symptoms were 3.89 ± 4.65, 9.25 ± 7.63, and 12.25 ± 12.69 in the GS-3K8, GINST, and placebo groups, respectively. Conclusion: The results support the feasibility of a full-scale trial. GS-3K8 and GINST appear to have a positive tendency toward preventing the development of ARI and reducing the symptom duration. A randomized controlled trial is needed to confirm these findings.

A Systematic Review of Clinical Researches of Korean Medicine for Alopecia (탈모증의 한약제제 치료효과에 대한 체계적 문헌 고찰)

  • Ryu, Deok-Hyun;Roh, Seok-Sun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.30 no.2
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    • pp.1-18
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    • 2017
  • Objectives : This review aims to evaluate a risk of bias by risk of bias tool and RoBANS(Risk of Bias Assessment tool for Non-randomized Study) tool for clinical trial papers proving treatment effect of Korean medicines to alopecia and provides the newest reason of effectiveness of herbs to alopecia. Methods : Data were collected through electronic database including NDSL, KISS, KMBASE, Koreantk, OASIS, KoreaMed, KISTI, Pubmed, Cochrane CENTRAL and CINAHL. Two experts in Oriental Medicine assessed risk of bias of randomized controlled trials by Cochrane group's Risk of Bias tool and non-randomized controlled trials by RoBANS tool after searching, reviewing and selecting papers. Results : Total number of selected trials is 20 including 4 randomized controlled trial, 13 non-randomized controlled trials and 3 case reports. This study evaluate the risk of bias of 17 papers including 4 randomized controlled trials and 13 non-randomized controlled trials except 3 case reports by risk of bias tool and RoBANS tool. All papers of randomized controlled trials are evaluated unclear for random sequence generation and allocation concealment as there are no word on them. And all papers of non-randomized controlled trials are evaluated unclear for blinding of outcome assessments and relatively low for others. Conclusions : Korean medicine intervention can be an effective for treatment in alopecia. It was evaluated by hair density, thickness and expert panel assessment of photographs and all results are statistically significant. But enhancing levels of evidence, we must try to reduce bias in researches and report a safety, protocol and IRB.

Wheel of Wellness Counseling in Community Dwelling, Korean Elders: A Randomized, Controlled Trial

  • Kwon, So-Hi
    • Journal of Korean Academy of Nursing
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    • v.45 no.3
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    • pp.459-468
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    • 2015
  • Purpose: The purpose of this study was to investigate the effects of Wheel of Wellness counseling on wellness lifestyle, depression, and health-related quality of life in community dwelling elderly people. Methods: A parallel, randomized controlled, open label, trial was conducted. Ninety-three elderly people in a senior welfare center were randomly assigned to two groups: 1) A Wheel of Wellness counseling intervention group (n=49) and 2) a no-treatment control group (n=44). Wheel of Wellness counseling consisted of structured, individual counseling based on the Wheel of Wellness model and provided once a week for four weeks. Wellness lifestyle, depression, and health-related quality of life were assessed pre-and post-test in both groups. Results: Data from 89 participants were analyzed. For participants in the experimental group, there was a significant improvement on all of the wellness-lifestyle subtasks except realistic beliefs. Perceived wellness and depression significantly improved after the in the experimental group (n=43) compared to the control group (n=46) from pre- to post-test in the areas of sense of control (p =.033), nutrition (p =.017), exercise (p =.039), self-care (p <.001), stress management (p =.017), work (p =.011), perceived wellness (p =.019), and depression (p =.031). One participant in the intervention group discontinued the intervention due to hospitalization and three in the control group discontinued the sessions. Conclusions: Wheel of Wellness counseling was beneficial in enhancing wellness for the community-dwelling elderly people. Research into long-term effects of the intervention and health outcomes is recommended.

Research Trends in Evidence Based Medicine on Acupuncture -Randomized Controlled Trial- (침 관련 근거중심의학의 연구 동향 - Randomized Controlled Trial을 중심으로 -)

  • Lee, Ro-Min;Nam, Sang-Su;Lee, Sang-Hoon;Kim, Yong-Suk
    • Journal of Acupuncture Research
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    • v.26 no.2
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    • pp.147-158
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    • 2009
  • Objectives : The purpose of this study is to review the recent research trends of evidence based medicine, especially human randomized controlled trials on acupuncture. Methods : The articles were collected by retrieving the database of Pubmed and Journal of Korean Acupuncture & Moxibustion Society. The retrieving period was from October 2003 to September 2008, and the search term was 'acupuncture'. The articles were classified according to their publication journals, countries, publication years, targeted diseases, types of acupuncture and types of control. Results : In total, 558 articles in Pubmed and 35 articles in Journal of Korean Acupuncture & Moxibustion Society were searched. The number of articles on acupuncture research has increased with higher rate since 2000, but the Qualitative development has not achieved the same amplitude. Studies in Korea were insufficient both in Qualitative and Quantitative aspects. In countries, China had the most papers, and in targeted diseases, pain diseases were most dominant. In the types of acupuncture, classical acupuncture, and in the types of control, conventional western treatment showed the highest frequency. Conclusions: We need to do many-sided and more high Quality researches on acupuncture. For that, well-designed randornized trials are absolutely necessary.

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