• Title/Summary/Keyword: randomized controlled double blind study

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Review of Clinical and Experimental Studies on External Application Treatment for Atopic Dermatitis in the Korean Literature (아토피 피부염 외용제에 관련된 국내 임상 및 실험 논문 고찰)

  • Min, Deul Le;Park, Eun Jung;Kang, Kyung Ha
    • The Journal of Pediatrics of Korean Medicine
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    • v.27 no.1
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    • pp.36-49
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    • 2013
  • Objectives The goal of this review is to investigate clinical and experimental studies on external application treatment for atopic dermatitis in Korean literature and to propose for the better method of clinical studies in order to seek more effective treatment. Methods Electronic researches were performed with KTKP, OASIS, National Assembly Library, Korean Medicine Database, KISS, DBpia, and KISTI. Results and Conclusions In Twenty six studies, the numbers of clinical and experimental studies are respectively 10 (38.46%) and 16 (61.54%). The numbers of studies that used herbal complex were 20 (76.92%), and out of that, 6 studies had used a single herbal medicine (23.08%). The external application with oriental medicine for the atopic dermatitis used with Phellodendri Cortex (7), Sophorae Radix (6), Scutellariae Radix (6), Lonicerae Flos (5), Coptidis Rhizoma (5) and so on. Among the clinical studies, the 5 studies were double-blind and randomized-controlled study (50%). The numbers of studies that used Hanifin and Rajka Diagnostic Criteria (1980) were 6 (60%), and that used the Diagnostic Criteria in Korean Atopic Dermatitis (2005) were 4 (40%). Among the clinical studies, categories to evaluate of atopic dermatitis are respectively SCORAD Index (80%), Total IgE (80%), Eosinophil count (70%) and so on. All of the clinical studies (100%) showed a statistically significant decline in atopic dermatitis according to the SCORAD Index, Modified SCORAD Index, the Clinic index score. Among the experimental studies, the numbers of studies that used NC/Nga mice were 9 (56.25%), and out of that 5 studies used BALB/c mice (31.25%). Most of the studies (68.75%) used DNCB as allergy inducing materials. The scales for evaluation of atopic dermatitis were Clinical skin severity score, Histopathologic examination, Immunohematologic examination, safety test and so on. In 12 cases (75%) of experimental studies, the IgE level of experimental group showed a statistically significant decline after using external application. In 8 study cases (50%), Clinical skin severity score of experimental group showed a statistically significant decline after using external application.

Analysis of Repeated Measured VAS in a Clinical Trial for Evaluating a New NSAID with GEE Method (퇴행성 관절염 환자를 대상으로 새로운 진통제 평가를 위한 임상시험자료의 GEE 분석)

  • Lim, Hoi-Jeong;Kim, Yoon-I;Jung, Young-Bok;Seong, Sang-Cheol;Ahn, Jin-Hwan;Roh, Kwon-Jae;Kim, Jung-Man;Park, Byung-Joo
    • Journal of Preventive Medicine and Public Health
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    • v.37 no.4
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    • pp.381-389
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    • 2004
  • Objective : To compare the efficacy between SKI306X and Diclofenac by using generalized estimating equations (GEE) methodology in the analysis of correlated bivariate binary outcome data in Osteoarthritis (OA) diseases. Methods : A randomized, double-blind, active comparator-controlled, non-inferiority clinical trial was conducted at 5 institutions in Korea with the random assignment of 248 patients aged 35 to 75 years old with OA of the knee and clinical evidence of OA. Patients were enrolled in this study if they had at least moderate pain in the affected knee joint and a score larger than 35mm as assessed by VAS (Visual Analog Scale). The main exposure variable was treatment (SKI 306X vs. Diclofenac) and other covariates were age, sex, BMI, baseline VAS, center, operation history (Yes/No), NSAIDS (Y/N), acupuncture (Y/N), herbal medicine (Y/N), past history of musculoskeletal disease (Y/N), and previous therapy related with OA (Y/N). The main study outcome was the change of VAS pain scores from baseline to the 2nd and 4th weeks after treatment. Pain scores were obtained as baseline, 2nd and 4th weeks after treatment. We applied GEE approach with empirical covariance matrix and independent(or exchangeable) working correlation matrix to evaluate the relation of several risk factors to the change of VAS pain scores with correlated binary bivariate outcomes. Results : While baseline VAS, age, and acupuncture variables had protective effects for reducing the OA pain, its treatment (Joins/Diclofenac) was not statistically significant through GEE methodology (ITT:aOR=1.37, 95% CI=(0.8200, 2.26), PP:aOR=1.47, 95% CI=(0.73, 2.95)). The goodness-of-fit statistic for GEE (6.55, p=0.68) was computed to assess the adequacy of the fitted final model. Conclusions : Both ANCOVA and GEE methods yielded non statistical significance in the evaluation of non-inferiority of the efficacy between SKI306X and Diclofenac. While VAS outcome for each visit was applied in GEE, only VAS outcome for the fourth visit was applied in ANCOVA. So the GEE methodology is more accurate for the analysis of correlated outcomes.

Effects of Unripe Rubus Coreanus Extract on Upper Body Obesity: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial (미숙과 복분자 추출물의 상체비만 개선 효과: 무작위배정, 이중눈가림, 위약-대조 임상연구)

  • Ha, Ki Chan;Kim, Hye Mi;Baek, Hyang Im;Jeong, Da Young;Kim, Eun;Lee, Ki Hoon;Kim, Ha Rim;Kwon, Kang Beom;Kim, Sunoh;Lee, Jung Han
    • Journal of Korean Medicine Rehabilitation
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    • v.31 no.4
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    • pp.117-127
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    • 2021
  • Objectives Previously, we demonstrated that a 5% ethanol extract of unripe Rubus coreanus (5-uRCK) and ellagic acid has hypocholesterolemic and antiobesity activity in high-fat diet-fed animals. Therefore, we conducted a clinical study on the anti-obesity effect of 5-uRCK in 140 Korean adults (aged 19-70 years, body mass index (BMI) ≥25 kg/m2). Methods The participants were randomly assigned to two groups and were administered the placebo (n=70) or 5-uRCK extract (800 mg, n=70) daily for 12 weeks. The subjects were instructed to maintain their usual dietary intake and normal physical activity. Anthropometrics, body composition (dual-energy X-ray absorptiometry), and blood parameters were compared between the two groups. Results Average body weight and BMI did not show any significant changes; however, changes in upper body fat mass between the two groups was significantly different, as determined using analysis of covariance adjusted for baseline of percent body fat and drinking units. Moreover, Although not significant, the trunk fat mass and percent trunk fat tended to decrease after 5-uRCK supplementation. There was no significant difference in other laboratory biomarkers between the two groups. All safety parameters were within normal ranges in the both group. Conclusions In the present study, 5-uRCK significantly reduced upper body fat in obese subjects after 12 weeks, which indicates that it may help improve android-type obesity. Furthermore, the supplement is safe and well tolerated.

Evaluation of the effects of Hangover-releasing agent containing freeze-dried mature silkworm larval powder (SMSP) on alcohol metabolism and hangover improvement (숙잠 함유 복합물의 알코올 대사 및 숙취개선 효능평가)

  • Woo, Miseon;Cha, Ji Hyeon;Kim, Yonghwan;Kang, Hee-Taik;Kim, Hyeondok;Cho, Kyong Won;Park, Sung Sun;Lee, Jong Hun
    • Korean Journal of Food Science and Technology
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    • v.53 no.1
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    • pp.72-77
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    • 2021
  • Silkworms have traditionally been used to produce silk and textiles. However, steamed and freeze-dried mature silkworm larval powder (SMSP) contain large amounts of amino acids, vitamins, and essential minerals. In this study, we investigated the potential of SMSP as a hangover-relieving agent. Thirty individuals who met the selection criteria and exclusion criteria were included in the study and subsequently underwent a double-blind, randomized, placebo-controlled, cross-design human application test. Importantly, the test product containing SMSP (CKDHC) was proven to alleviate hangovers through a significant reduction in the plasma concentration of acetaldehyde in the context of an alcohol-induced hangover model. In particular, from 0.5 h after SMSP intake, the blood acetaldehyde concentration (mg/L), area under the time curve (AUC; indicating the degree of bioabsorption of blood acetaldehyde), and the highest blood acetaldehyde concentration (Cmax) were reduced. Altogether, these results suggest that the test product (CKDHC) exhibits an accelerated hangover-relieving effect.

Ursodeoxycholic Acid in the Prevention of Pediatric Parenteral Nutrition-associated Cholestasis (소아 총정맥영양의 간담도계 합병증에 대한 Ursodeoxycholic acid의 예방효과에 대한 연구)

  • Kim, Ji Hee;Min, Myung Sook;In, Yong Won;Shon, Kie Ho;Choi, Kyung Eob;Choe, Yon Ho;Beck, Nam Sun;Lee, Suk Hyang;Park, Tae Sung
    • Korean Journal of Clinical Pharmacy
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    • v.15 no.1
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    • pp.9-20
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    • 2005
  • Cholestatic liver disease is a frequent complication of prolonged parenteral nutrition, especially in premature infants. Numerous factors have been cited as contributing to TPN associated cholestasis. However the exact etiology remains obscure. Ursodeoxycholic acid (UDCA) has been reported to be beneficial far children and adults with various chronic cholestatic liver disease. The aim of this prospective, randomized, double-blind, placebo-controlled study was to determine the preventive effects of UDCA administration during TPN. Seventeen pediatric patients (8 boys and 9 girls) undergoing TPN were assigned randomly to two groups, UDCA and placebo group. UDCA group (n=9) received 15 mg/kg/day UDCA and placebo group (n=8) received 15 mg/kg/day placebo enterally during the TPN period. Liver function tests (total bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase) were per-formed before TPN and weekly or three times a week. The patients' weights, complete blood count, composition of TPN, and the infusion rate of TPN and lipid were monitored everyday. Calcium and phosphate were monitored twice a week. Between the UDCA and placebo groups, there were no differences in weight at the onset of TPN, birth weight, duration of TPN, respiratory distress syndrome associated with prematurity, age at the onset of TPN, gestational age, the number of days the patients received antibiotics, the number of patients received enteral nutritions and the composition of TPN. In contrast, there was a significant difference between the UDCA and placebo groups in alanine aminotransferase levels during TPN. It doesn't seem that UDCA administration during TPN correlates directly with improvement of liver function. But the preventive administration of UDCA may be effective in reducing liver enzyme, alanine aminotransferase and has no adverse effects.

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The Effects of distilled Wild Ginseng Herbal Acupuncture on the Heart Rate Variability(HRV) (산삼 약침이 정상인의 심박변이도(HRV)에 미치는 영향)

  • Roh, Jeong-Du;Kim, Lak-Hyung;Song, Beom-Yong;Yook, Tae-Han
    • Journal of Pharmacopuncture
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    • v.11 no.1
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    • pp.55-69
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    • 2008
  • Objective : We investigated the effects of distilled Wild Ginseng Herbal Acupuncture on autonomic nervous system with the Heart Rate Variability(HRV) in adult man. as well as we tried to observe how distilled Wild Ginseng Herbal Acupuncture on the balance of the autonomic nervous system. Method : We investigated the effects of distilled Wild Ginseng Herbal Acupuncture on autonomic nervous system with the Heart Rate Variability(HRV) in adult man. as well as we tried to observe how distilled Wild Ginseng Herbal Acupuncture on the balance of the autonomic nervous system. 1 healthy volunteers consisted of 31 subjects in experiment(distilled Wild Ginseng Herbal Acupuncture) group and 30 subjects in control(Normal Saline) group. Study form was a randomized, placebo-controlled, double-blind clinical trial. 31 subjects in experiment group were injected distilled Wild Ginseng Herbal Acupuncture at $GB_{21}$(Kyonjong) and 30 subjects in control group were injected Normal Saline at $GB_{21}$(Kyonjong). except of 2 subjects(in control group) who can't be measured and 11 subjects(7 in experiment group and 4 in control group) who move or make unforceable error during measuring. Finally 24 subject in experiment group and 24 subject in control group are studied. We measured HRV by PolyG-I on 7 times : before and after injection per 5 minutes during 30 minutes. The SPSS 10.0 for windows was used to analyze the data and the paired t-test(in group) and Student t-test(between two groups) were used to verify the result. Result : 1. After distilled Wild Ginseng Herbal Acupuncture injection, Mean HRV is significantly low only for first 5 minute, SDNN is significantly high after 5 minute, Complexity is significantly low after 5 minute, HRV index is significantly high after 10 minute and pNN50 is significantly low after 5 minute. 2. SDNN of distilled Wild Ginseng Herbal Acupuncture Group significantly increased from 20minute to 25minute, and pNN50 of distilled Wild Ginseng Herbal Acupuncture Group significantly decreased from 10minute to 15minute and 20 minute to 30 minute compared with those of Normal Saline group. 3. After distilled Wild Ginseng Herbal Acupuncture injection, Ln(TP), Ln(VLF) and Ln(LF) are significantly high after 5 minute, normalized LF is significantly high after 5 minute and normalized HF is significantly low after 5 minute. 4. Ln(TP) and Ln(VLF) of distilled Wild Ginseng Herbal Acupuncture Group significantly increased from 20minute to 25 minute compared with those of Normal Saline group. Conclusion : The results suggest that distilled Wild Ginseng Herbal Acupuncture in healthy adult man tend to activate the autonomic nervous system and sympathetic nervous system compared to Normal Saline within normal range.

The Effects of distilled Rehmannia glutinosa Herbal Acupuncture on the Heart Rate Variability(HRV) (생지황 약침이 정상인의 심박변이도(HRV)에 미치는 영향)

  • Shin, Jin-Cheol;Kim, Lak-Hyung;Song, Beom-Yong;Yook, Tae-Han
    • Journal of Pharmacopuncture
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    • v.11 no.1
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    • pp.83-97
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    • 2008
  • Objectives : We investigated the effects of distilled Rehmannia glutinosa Herbal Acupuncture on autonomic nervous system with the Heart Rate Variability(HRV) in adult man. as well as we tried to observe how distilled Rehmannia glutinosa Herbal Acupuncture on the balance of the autonomic nervous system. Methods : We investigated on 58 healthy volunteers consisted of 28 subjects in experiment(distilled Rehmannia glutinosa Herbal Acupuncture) group and 30 subjects in control(Normal Saline) group. Study form was a randomized, placebo-controlled, double-blind clinical trial. 28 subjects in experiment group were injected distilled Rehmannia glutinosa Herbal Acupuncture at $GB_{21}$(Kyonjong) and 30 subjects in control group were injected Normal Saline at $G_{21}$(Kyonjong). except of 2 subjects(in control group) who can't be measured and 6 subjects(2 in experiment group and 4 in control group) who move or make unforceable error during measuring. Finally 26 subject in experiment group and 24 subject in control group are studied. We measured HRV by PolyG-I on 7 times : before and after injection per 5 minutes during 30 minutes. The SPSS 10.0 for windows was used to analyze the data and the paired t-test(in group) and Student t-test(between two groups) were used to verify the result. Results : 1. After distilled Rehmannia glutinosa Herbal Acupuncture injection, Mean HRV is significantly low only for first 5 minute, SDNN is significantly high after 5 minute, Complexity is significantly low only from 20 minute to 25 minute. HRV index is significantly high for first 5minute and from 10 minute to after 10 minute. 2. HRV index of distilled Rehmannia glutinosa Herbal Acupuncture Group significantly increased from 25 minute to 30 minute, and pNN50 of Rehmannia glutinosa Herbal Acupuncture Group significantly decreased from 20 minute to 30 minute compared with those of Normal Saline group. 3. After distilled Rehmannia glutinosa Herbal Acupuncture injection, Ln(TP) and Ln(VLF) are significantly high after injection. Normalized LF is significantly high from 5 minute to 20 minute and from 25 minute and 30 minute. Normalized HF is significantly low from 5minute to 20 minute and from 25 minute and 30 minute. 4. Ln(TP) and Ln(VLF) of distilled Rehmannia glutinosa Herbal Acupuncture Group significantly increased from 20 minute to 25 minute compared with those of Normal Saline group. Conclusions : The results suggest that Rehmannia glutinosa Herbal Acupuncture in healthy adult man tend to activate the autonomic nervous system and parasympathetic nervous system compared to Normal Saline within normal range.

Effect of Ephedra Sinica and Evodia Rutaecarpa on Resting Metabolic Rate in Obese Premenopausal Women during Low-calorie Diet: A Randomized Controlled Clinical Trial (저열량 식이요법을 한 폐경 전 비만 여성의 휴식 대사량에 대한 마황과 오수유의 효과)

  • Kim, Su-Jin;Ko, Byung-Pyo;Kim, Hyung-Do;Kim, Jin-Ah;Park, Jeong-Mi;Choi, Seung-Ki;Jeon, Uoo-Hyun;Kim, Ho-Jun
    • Journal of Korean Medicine for Obesity Research
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    • v.4 no.1
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    • pp.45-54
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    • 2004
  • Objective: To evaluate the effect of Ephedra Sinica and Evodia Rutaecarpa on resting metabolic rate(RMR), weight and body composition in obese women during low-calorie diet. Methods: We recruited 90 healthy premenopausal women$(body\;mass\;index{\geq}25kg/m^2)$ and randomly assigned to three groups(ephedra group, evodia group and placebo group). Subjects were administered Ephedra Sinica(6g twice a day) or Evodia Rutaecarpa(6g twice a day) or placebo in a double-blind fashion and participated in low-calorie diet for 8 weeks. Resting metabolic rate and body composition were measured at baseline, 4 and 8 weeks. Results: RMR change for 4 weeks was significantly higher in the ephedra group compared with the placebo group(p<.05). But the change for 8 weeks was not significant and the Evodia group showed no significant RMR change. Weight and percent body fat changes for 4 weeks and 8 weeks were significantly higher than the placebo group in the ephedra group(p<.05), but the Evodia group didn't show significant level. Conclusions: This study supports and emphasizes the benefits of herbal medicine in maintaining or increasing RMR during low-calorie diet. Especially Ephedra treatment was effective on significant maintainment of RMR, loss of weight and percent body fat(P<.05).

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Effect of Korean Red Ginseng Extract on Blood Circulation in Healthy Volunteers: A Randomized, Double-Blind, Placebo-Controlled Trial (건강한 지원자에서 홍삼농축액의 혈행 개선 효과: 무작위, 이중맹검, 위약-대조 시험)

  • Shin, Kyeong-Seob;Lee, Jung-Jin;Kim, Yeong-Il;Yu, Ji-Yeon;Park, Eun-Seok;Im, Ji-Hyun;You, Soon-Hyang;Oh, Ki-Wan;Lee, Myung-Koo;Wee, Jae-Joon;Kim, Young-Sook;Yun, Yeo-Pyo
    • Journal of Ginseng Research
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    • v.31 no.2
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    • pp.109-116
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    • 2007
  • Korean red ginseng has broad efficacious effects against hypertension, diabetes, nociception, and cancer, and it counteracts weakness. It has been reported that Korean red ginseng is able to normalize blood pressure, improve cholesterol and lower blood glucose levels. We have recently reported that Korean red ginseng extract (KRGE) significantly prevented rat carotid arterial thrombosis in vivo, and inhibited platelet aggregation ex vivo and in vitro in a dose-dependent manner. The purpose of this study was to examine the effects of KRGE on blood circulation in human by measuring ex vivo platelet aggregation, plasma coagulation and serum lipid profiles in healthy volunteers. Subjects were randomly divided into three groups (placebo-group, KRGE-low dose group, KRGE-high dose group). Administration of KRGE to subjects significantly inhibited ADP-induced platelet aggregations both in KRGE-low dose group from $72.79{\pm}20.53$ to $62.00{\pm}23.06%$ (p=0.0009), and in KRGE-high dose group from $75.14{\pm}21.86$ to $64.52{\pm}24.72%$ (p=0.0039), respectively. Administration of KRGE to subjects also significantly inhibited collagen-induced platelet aggregations both in KRGE-low dose group from $85.52{\pm}12.57$ to $79.62{\pm}20.47%$ (p=0.0916), and in KRGE-high dose group from $80.24{\pm}18.11$ to $70.31{\pm}25.93%$ (p=0.0565), respectively. Whereas, KRGE has no significant effects on coagulation system, such as prothrombin time (PT) and activated partial thromboplastin time (APTT), and serum lipid profiles, such as total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol and triglyceride. KRGE also has no significant effects on hematological and serum biochemical profiles. These results suggest that KRGE has a potential to improve blood circulation through antiplatelet activity in human, and KRGE intake may be beneficial for the individuals with high risks of thrombotic and cardiovascular diseases.

Effects of Polycan on bone Metabolism in healthy Perimenopausal Women: a 12-week Randomized, Double-blind, Placebo-controlled study (폴리칸이 중년 여성의 골대사에 미치는 영향: 12주간의 무작위배정, 이중눈가림, 플라세보 대조 연구)

  • Kim, Min-Gul;Ha, Ki-Chan;Back, Hyang-Im;Kim, Sun-Young;Kim, Joo-Wan;Kim, Ki-Young;Cho, Hyung-Rae;Chae, Han-Jung;Chae, Soo-Wan;Kim, Dal-Sik
    • Korean Journal of Clinical Pharmacy
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    • v.21 no.4
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    • pp.297-304
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    • 2011
  • 배경: 골다공증은 골대사의 불균형으로 인해 골 흡수가 골 형성보다 많아져 골밀도가 감소함으로서 발생한다. 골다공증의 이상적인 치료목표는 골형성을 증가시키거나 골소실을 방지하여 골량을 현 상태로 유지하는 것이다. 따라서 향후 발생되는 골소실을 에방하는 것이 골다공증의 원칙적이고 효과적인 치료방법이 될 것이다. 본 연구에서는 흑효모 중 $Aureobasidium$ $pullulans$으로부터 유래한 폴리칸(베타-글루칸)이 중년여성의 골대사에 미치는 영향을 규명하고자 하였다. 연구방법: 골대사에 대한 폴리칸의 효과를 규명하기 위해 12주간의 무작위배정, 이중눈가림, 플라세보 대조 임상연구를 수행하였다. 총 60명(폴리칸 투여군30명, 플라세보 투여군 30명)의 중년 여성 피험자가 등록되어 이 중 총 58명의 피험자가 최종적으로 12주간의 임상연구를 종료하였다. 결 과: 폴리칸(150 mg/d) 투여 12주 후, 폴리칸 투여군은 요 중 Deoxypyridinoline (DPD) 농도가 유의적인 감소를 보였다($P$=0.014). 혈청 중 Osteocalcin(OSC) 농도는 두 군 모두에서 유의적으로 증가하였으며, bone-specific alkaline posphatase (bALP) 와 collagen type 1 cross-linked C-telopeptide (CTx)는 유의적 변화가 보이지 않았다. 폴리칸은 골밀도(BMD)와 혈청 부갑상선 호르몬(iPTH)에 대해 유의적인 변화를 보이지 않았으나, 24시간 요 중 Ca 배설량은 폴리칸 투여군에서 유의하게 감소되었다($P$=0.028). 또한 폴리칸 투여군에서 고밀도지단백 콜레스테롤(HDL-cholesterol) 농도의 증가 경향 및 중성지방(triglyceride)의 유의적인 감소가 보였다. 임상연구 기간 중에 발생한 이상반응은 두 군간에 유의적인 차이를 보이지 않았다. 결 론: 본 연구에서는 폴리칸이 골대사 및 지질에 대해 일부 개선효과가 있음을 보여주었다. 그러나, 골다공증 예방 측면에서 보다 장기적인 임상연구와 피험자 수를 확대하여 골대사 및 지질대사에 대한 폴리칸의 예방적 효과를 규명할 필요가 있을것으로 사료된다.