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

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A 8-Week, Randomized, Double-Blind, Placebo-Controlled Human Trial to Evaluate the Efficacy and Safety of Punica granatum L.·Actinidia chinensis Planch. Mixed Extract on Body Fat (석류·참다래 혼합추출물의 체지방 감소에 대한 유효성 및 안전성을 평가하기 위한 8주, 무작위 배정, 이중눈가림, 위약-대조 인체적용시험)

  • Choi, Jin-Bong;Lee, Ji-Eun;Do, Yun-Kyoung
    • Journal of Korean Medicine for Obesity Research
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    • v.17 no.2
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    • pp.87-95
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    • 2017
  • Objectives: This study was conducted to evaluate efficacy and safety of Punica granatum L. Actinidia chinensis Planch. mixed extract on body fat. Methods: Thirty women were recruited ($25kg/m^2{\leq}body$ mass index [BMI]${\leq}29.9kg/m^2$) ($19yr{\leq}age{\leq}38yr$) and randomized to receive Punica granatum L. Actinidia chinensis Planch. mixed extract or placebo for 8 weeks. During the test, they visited four times including screening. Body fat mass, body fat rate, anthropometric dimensions at waist and hip, waist-hip ratio, total cholesterol, triglyceride, low density lipoprotein-cholesterol (LDL-C), and high density lipoprotein-cholesterol (HDL-C) were measured at screening and 8 weeks after screening. Adverse reaction were also checked each visit. Results: There were no significant differences in all index. But when divide experimental group by BMI index, age, and compliance, less than BMI $27kg/m^2$ group decreased body weight, body fat mass and more than BMI $27kg/m^2$ group also decreased body weight, body fat mass and waist circumference. Less than age 30 years group showed decline of waist circumference, fat free rate and T-cholesterol and more than age 30 years group showed decline of fat free mass. Group with compliance more than 95% was decreased BMI, fat free mass, and hip circumference. Conclusions: There was no significant efficacy as compared with placebo group, but as divide experimental group according to BMI index, age, compliance, mixed extract might be effective to reduce obesity index.

Effect of Beta Glucan on White Blood Cell Counts and Serum Levels of IL-4 and IL-12 in Women with Breast Cancer Undergoing Chemotherapy: A Randomized Double-Blind Placebo-Controlled Clinical Trial

  • Ostadrahimi, Alireza;Ziaei, Jamal Eivazi;Esfahani, Ali;Jafarabadi, Mohammad Asghari;Movassaghpourakbari, Aliakbar;Farrin, Nazila
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.14
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    • pp.5733-5739
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    • 2014
  • Background: Breast cancer is the most common female malignancy in the world. Beta glucan can be a hematopoietic and an immune modulator agent in cancer patients. The aim of this trial was to determine the effect of beta glucan on white blood cell counts and serum levels of IL-4 and IL-12 in women with breast cancer undergoing chemotherapy. Materials and Methods: This randomized double-blind placebo-controlled clinical trial was conducted on 30 women with breast carcinoma aged 28-65 years. The eligible participants were randomly assigned to intervention (n=15) or placebo (n=15) groups using a block randomization procedure with matching based on age, course of chemotherapy and menopause status. Patients in the intervention group received two 10-mg capsules of soluble 1-3, 1-6, D-beta glucan daily and the control group receiving placebo during 21 days, the interval between two courses of chemotherapy. White blood cells, neuthrophil, lymphocyte and monocyte counts as well as serum levels of IL-4 and IL-12 were measured at baseline and at the end of the study as primary outcomes of the study. Results: In both groups white blood cell counts decreased after 21 days of the intervention, however in the beta glucan group, WBC was less decreased non significantly than the placebo group. At the end of the study, the change in the serum level of IL-4 in the beta glucan group in comparison with the placebo group was statistically significant (p=0.001). The serum level of IL-12 in the beta glucan group statistically increased (p=0.03) and comparison between two groups at the end of the study was significant after adjusting for baseline values and covariates (p=0.007). Conclusions: The findings suggest that beta glucan can be useful as a complementary or adjuvant therapy and immunomodulary agent in breast cancer patients in combination with cancer therapies, but further studies are needed for confirmation.

Effect of a Proton Pump Inhibitor on Tumor Bleeding Prevention in Unresectable Gastric Cancer Patients: a Double-Blind, Randomized, Placebo-Controlled Trial

  • Kim, Young-Il;Kim, Mi-Jung;Park, Sook Ryun;Kim, Hark Kyun;Cho, Soo-Jeong;Lee, Jong Yeul;Kim, Chan Gyoo;Kim, Gwang Ha;Park, Moo In;Nam, Byung-Ho;Park, Young Iee;Choi, Il Ju
    • Journal of Gastric Cancer
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    • v.17 no.2
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    • pp.120-131
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    • 2017
  • Purpose: Tumor bleeding is a major complication in inoperable gastric cancer. The study aim was to investigate the effects of proton pump inhibitor (PPI) treatment for the prevention of gastric tumor bleeding. Materials and Methods: This study was a prospective double-blind, randomized, placebo-controlled trial. Patients with inoperable gastric cancer were randomly assigned to receive oral lansoprazole (30 mg) or placebo daily. The primary endpoint was the occurrence of tumor bleeding, and the secondary endpoints were transfusion requirement and overall survival (OS). Results: This study initially planned to enroll 394 patients, but prematurely ended due to low recruitment rate. Overall, 127 patients were included in the analyses: 64 in the lansoprazole group and 63 in the placebo group. During the median follow-up of 6.4 months, tumor bleeding rates were 7.8% and 9.5%, in the lansoprazole and placebo groups, respectively, with the cumulative bleeding incidence not statistically different between the groups (P=0.515, Gray's test). However, during the initial 4 months, 4 placebo-treated patients developed tumor bleeding, whereas there were no bleeding events in the lansoprazole-treated patients (P=0.041, Gray's test). There was no difference in the proportion of patients who required transfusion between the groups. The OS between the lansoprazole (11.7 months) and the placebo (11.0 months) groups was not statistically different (P=0.610). Study drug-related serious adverse event or bleeding-related death did not occur. Conclusions: Treating patients with inoperable gastric cancer with lansoprazole did not significantly reduce the incidence of tumor bleeding. However, further studies are needed to evaluate whether lansoprazole can prevent tumor bleeding during earlier phases of chemotherapy (ClinicalTrial.gov, identifier No. NCT02150447).

Adverse Effects of Ephedra According to Sasang Typology in Healthy Adults : A Double-Blind Randomized Controlled Trial (마황복용 후 사상체질별 이상반응에 관한 임상연구 : 무작위배정 이중맹검시험)

  • Lee, Tae-Ho;Hsing, Li-Chang;Yang, Chang-Sop;Kim, Lak-Hyung;Seo, Eui-Seok;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.30 no.1
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    • pp.144-152
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    • 2009
  • Background : Ephedra (Ephedra sinica) has been widely used to treat respiratory disease in traditional medicine of East Asia for over a hundred years. Despite safety concerns raised by some, the use of ephedra in traditional medicine is documented over more than 1,800 years. It is well established that ephedra is one of the central medicines in Korean 'Seseng constitution' medicine. In Sasang constitution medicine, all humans can be divided into one of four types: Soeumin, Soyangin, Taeumin or Taeyangin, and each constitution type has their own typical characteristics. Accordingly, it is hypothesized that the adverse effects of ephedra differ depending on the Sasang constitution classification. Objectives : The aim of this study was to determine adverse effects of ephedra which is classified as a Taeumin herb, and to observe whether the response differs or not. according to Sasang constitution classification. Methods : The study design was a double-blind randomized controlled trial. The subjects were healthy adults 20 - 50 years old who agreed to participate in this study. They were allocated through randomization to either ephedra group (N=55) or placebo group (N=24). where ephedra extract (6 g of dried ephedra) and placebo with similar opaque capsules were given twice for one day. To compare the adverse events of ephedra according to Sasang constitution classification, we analyzed blood pressure (systolic and diastolic), pulse rate, the morning questionnaire, and patient's global assessment scale score for well known adverse events: palpitation, headache, sweating, tiredness, dyspepsia, and dry mouth. Results : After ingestion of ephedra, the pulse rate had a significant increase in all constitution types. The changes of diastolic pressure in Soeumin and the changes of pulse rate in Soeumin, Soyangin and Taeumin had a significant increase in the ephedra over the control group. In the ephedra group, the palpitation and dyspepsia score of the patients' global assessment scale had a significant increase in Soeumin, with palpitation and sweating score increasing in Soyangin. Others observations were insignificant results. Conclusion : The results of this study may confirm that the physical responses or adverse effects of herbs differ for each type of Sasang constitution. Future studies using other herbs will be required to ascertain the herbal drug reaction of Sasang constitutions.

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The Effect of Bee Venom Acupuncture(BVA) on acute Ankle Sprain : A Randomized Controlled Trial and double blinding - Pilot study (급성 족관절 염좌에 대한 봉약침 효과-무작위대조시험, 이중맹검)

  • Song, Ho-Seub
    • Journal of Pharmacopuncture
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    • v.8 no.2
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    • pp.11-16
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    • 2005
  • Objective : The aim of the study was to investigate the therapeutic effect of BVA in the treatment of patients with acute ankle sprain. Design : A prospective randomized double-blind study of BVA was conducted. Setting : The study was done in the Kyungwon University Seoul Hospital from August 1st, 2004 to June 15th, 2005. Patients : 30 patients diagnosed with acute ankle sprain, especially 2nd degree on the Ankle grade pain chart(AGPC) participated in the study, who were divided into two groups (A and B) randomly by a coordinator flipping a coin. Group A and B were relevant to control and BVA group respectively, of which a coordinator never informed any other participant involved. Eventually 13 of 17 in group A and 11 of 13 in Group B finished all the process of the clinical trial. Intervention : In both group A and B, The Procedure of acupuncture treatment was made similar by appearance that four acupoints such as 坵墟(GB40), 中封(LR4), 商丘(SP5), 解谿(ST41) of the injured side were selected and Normal saline aqua-acupuncture(control, as a placebo) or BVA was done and then acupuncture at 坵墟(GB40), 中封(LR4), 商丘(SP5), 解谿(ST41), 足三里(ST36), 陽陵泉(G34) of the affected side was given again. the needles were retained for 20 minutes under the infrared rays. The treatment was given daily for a week. Outcome Measures : Ankle-Hindfoot Scale (AHS) and Visual Analogue Scale(VAS) were followed by three treatments. Statistical Analysis : Analysis regarding variations in AHS and VAS is carried out by applying Mann-Whitney test and Wilcoxon signed rank test sign test with level of significance at 5%. Results : At the end of the treatment, there was significant statistical differences between the two groups in VAS and AHS as well, while at the 3rd day only a VAS showed statistical significance. In each group, both VAS and AHS showed statistical significance along with duration of treatment. Conclusions : BVA was thought to be effective alternatives for relieving symptoms of acute ankle sprain, although further study was needed on the large scale.

Effects of Mahuang for Weight Loss in Healthy Adults : A Double-Blind, Controlled, Randomized, Clinical Trial (마황복용이 성인의 체중감소에 미치는 영향에 대한 이중맹검 임상연구)

  • Yeo, Jin-Ju;Hsing, Li-Chang;Yang, Chang-Sub;Jeong, Seung-Il;Seo, Eui-Seok;Jang, In-Soo
    • The Journal of Korean Medicine
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    • v.28 no.1 s.69
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    • pp.63-71
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    • 2007
  • Objectives : To provide an objective assessment of the effectiveness for weight loss of Mahuang. Methods : Effects were assessed by measuring changes in body weight, body mass index (BMI), body fat (kg, %),body muscle, and abdominal f3t ratio. The subjects of this study were healthy adults who agreed to participate in this study. Eligibility requirements include age between 20 and 50 and BMI more than 18.5 kg/m2. One hundred subjects were randomly assigned to two groups (control and Mahuang group) in a double-blind manner. Mahuang group subjects took 8g of Mahuang capsule/day for two weeks; control subjects took the same amount of indistinguishable placebo. We analyzed the body weight, body mass index, body fat, abdominal fat, body muscle and BMR (basal metabolic rate) before and after the study. Result After two weeks of clinical trial, body weight and BMI decreased in both groups, but the Mahuang group showed more significant decrease. On body fat, the Mahuang group showed significant decrease. while it increased in the placebo group. Although body muscle, body fat ratio and basic metabolic rate showed differences between the two groups, there was no statistical significance. Conclusion : It is suggested that intake of Mahuang may induce weight loss and body f3f decrease in healthy adults.

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Research on Immune Enhancing Effect and Safety of Wasong (Orostachys japonicus) Extract: Study Protocol for a Single Center, Randomized, Double-blind, Placebo-controlled, Clinical Trial (와송 추출물의 면역기능 개선 효과 및 안전성 연구: 단일기관, 무작위배정, 이중눈가림, 위약대조 비교, 임상연구 프로토콜)

  • Choi, Jin Yong;Choi, Jun Yong;Lim, Hyun Woo;Kim, Jeong;Kim, So Yeon;Han, Chang Woo
    • Herbal Formula Science
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    • v.25 no.2
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    • pp.135-143
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    • 2017
  • Objectives : This trial aimed to determine if Wasong (Orostachys japonicus) extract can enhance immune system and is safe enough to be approved as a health functional food. Methods : Total 62 people, aged 45 and older, will be recruited to participate in a randomized, double-blind, placebo-controlled clinical trial. This study will compare Wasong extract and placebo. Wasong group will take 1g of Wasong extract, once a day, for 8 weeks. Placebo group will take 1g of crystalline cellulose as placebo, once a day, for 8 weeks. Outcomes will be measured at the baseline, the end of 4th week, and 8th week. Primary outcomes are the ratio of NK cells/total lymphocytes and the ratio of T-helper cells/T-suppressor cells. Secondary outcomes are total white blood cell count, the ratio of neutrophils, lymphocytes, and monocytes in total leukocytes, the ratio of total T cells, T-helper cells, T-suppressor cells, and B cells to lymphocytes, the amount of blood IgM, IgG, IgA, and cytomegalovirus (CMV) IgG, and blood metabolite target &global analysis. Results : This trial was approved by institutional review board of Pusan National University Korean Medicine Hospital (registry number: 2016006), and registered in Clinical Research information Service, one of WHO International Clinical Trials Registry Platform (registry number: PRE20161006-002). Recruitment opened in February 2017 and is supposed to be completed by August 2017. The result is expected to be published by June 2018. Conclusion : This trial will provide clinical information to determine the efficacy and safety of Wasong in enhancing immune system of middle-aged and older people.

Agrobacterium sp.-derived β-1,3-glucan enhances natural killer cell activity in healthy adults: a randomized, double-blind, placebo-controlled, parallel-group study

  • Lee, Yeon Joo;Paik, Doo-Jin;Kwon, Dae Young;Yang, Hye Jeong;Park, Yongsoon
    • Nutrition Research and Practice
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    • v.11 no.1
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    • pp.43-50
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    • 2017
  • BACKGROUND/OBJECTIVES: The present study investigated the hypothesis that a highly pure linear ${\beta}$-1,3-glucan produced by Agrobacterium sp. R259 enhances human natural killer (NK) cell activity and suppresses pro-inflammatory cytokines. SUBJECTS/METHODS: In an eight-week, double-blind, randomized, placebo-controlled clinical trial, 83 healthy adults with white blood cell counts of $4,000-8,000cells/{\mu}L$ were participated and randomly assigned to take two capsules per day containing either 350 mg ${\beta}$-1,3-glucan or placebo. Six participants withdrew their study consent or were excluded due to NK cell activity levels outside the normal range. NK cell activity and serum levels of immunoglobulin G (IgG) and cytokines, such as interferon (IFN)-${\gamma}$, interleukin (IL)-2, IL-4, IL-6, IL-10, IL-12 and tumor necrosis factor (TNF)-${\alpha}$ were measured. RESULTS: NK cell activity and the serum levels of IL-10 were significantly higher from baseline to week 8 in the ${\beta}$-glucan group compared with the placebo group (P = 0.048, P = 0.029). Consumption of ${\beta}$-1,3-glucan also significantly increased NK cell activity compared with placebo after adjusting for smoking and stress status (P = 0.009). In particular, the effect of ${\beta}$-1,3-glucan on NK cell activity was greater in participants with severe stress than in those experiencing mild stress. However, the administration ${\beta}$-1,3-glucan did not significantly modulate the levels of IFN-${\gamma}$, IL-2, IL-4, IL-6, IL-12, TNF-${\alpha}$ and IgG compared with the placebo. CONCLUSION: The results showed that supplementation with bacterial ${\beta}$-1,3-glucan significantly increased NK cell activity without causing any adverse effects. Additionally, the beneficial effect of ${\beta}$-1,3-glucan on NK cell activity was greater in participants experiencing severe stress.

Clinical Evidence of Effects of Lactobacillus plantarum HY7714 on Skin Aging: A Randomized, Double Blind, Placebo-Controlled Study

  • Lee, Dong Eun;Huh, Chul-Sung;Ra, Jehyeon;Choi, Il-Dong;Jeong, Ji-Woong;Kim, Sung-Hwan;Ryu, Ja Hyun;Seo, Young Kyoung;Koh, Jae Sook;Lee, Jung-Hee;Sim, Jae-Hun;Ahn, Young-Tae
    • Journal of Microbiology and Biotechnology
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    • v.25 no.12
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    • pp.2160-2168
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    • 2015
  • The beneficial effects of probiotics are now widely reported, although there are only a few studies on their anti-aging effects. We have found that Lactobacillus plantarum HY7714 (HY7714) improves skin hydration and has anti-photoaging effects, and in the present study, we have further evaluated the anti-aging effect of HY7714 via a randomized, double blind, placebo-controlled clinical trial. The trial included 110 volunteers aged 41 and 59 years who have dry skin and wrinkles. Participants took 1 × 1010 CFU/day of HY7714 (probiotic group) or a placebo (placebo group) for 12 weeks. Skin hydration, wrinkles, skin gloss, and skin elasticity were measured every 4 weeks during the study period. There were significant increases in the skin water content in the face (p < 0.01) and hands (p < 0.05) at week 12 in the probiotic group. Transepidermal water loss decreased significantly in both groups at weeks 4, 8, and 12 (p < 0.001 compared with baseline), and was suppressed to a greater extent in the face and forearm in the probiotic group at week 12. Volunteers in the probiotic group had a significant reduction in wrinkle depth at week 12, and skin gloss was also significantly improved by week 12. Finally, skin elasticity in the probiotic group improved by 13.17% (p < 0.05 vs. controls) after 4 weeks and by 21.73% (p < 0.01 vs. controls) after 12 weeks. These findings are preliminary confirmation of the anti-aging benefit to the skin of L. plantarum HY7714 as a nutricosmetic agent.

Short-Term Effects of Mahuang on State-Trait Anxiety According to Sasang Constitution Classification : A Double-Blind Randomized Controlled Trial (마황 단기복용이 사상체질인의 불안에 미치는 영향 : 이중맹검 임상시험)

  • Hsing, Li-Chang;Yang, Chang-Sop;Lee, Tae-Ho;Kim, Lak-Hyung;Kwak, Min-Jung;Seo, Eui-Seok;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.28 no.1
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    • pp.106-114
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    • 2007
  • Background : Mahuang (Ephedrae Herba, Ephedra sinica $S_{TAPE}$) has been widely used to treat respiratory disease in Asian over the past thousand years. The main ingredient of Mahuang is ephedrine, whose affects on the autonomic nervous system induce some adverse effects like vasoconstriction, hypertension, tachycardia, miosis, insomnia, dizziness, headache, etc. Although there were lots of reports about adverse effects of Mahuang, there were no clinical studies which evaluated the adverse effects of Mahuang on the autonomic nervous system by objective numerical value in the past decade. Objectives : The purpose of this report was to provide an objective assessment of state-trait anxiety that is caused by Mahuang, and to identify anxiety of Mahuang according to different Sasang constitution classifications. Methods : The study design was a double-blind randomized placebo-controlled trial. The subjects of this study were 79 adults aged between 20 to 40 who agreed to participate. Because 8 adults dropped out, a total of 71 subjects entered the study. They were allocated through randomization to a Mahuang group (N=50) and placebo group (N=21). Each group took three opaque capsules (every opaque capsule containing 2g of Mahuang or none) twice a day. To compare the state and trait anxiety before and after taking Mahuang, we checked the anxiety by using STAI-KYZ. Results : The following results were obtained. Short-term administration of Mahuang significantly increased state-anxiety, but in the placebo group, there were no significant changes in state-anxiety. In the Mahuang group except females, there was more significant increase in state-anxiety of Soeumin than Soyangin and Taeumin in the 2nd measurement. Conclusion : It is suggested that the ingestion of Mahuang can increase sympathetic activity and induce anxiety. There was a significant difference among Sasang constitution classification. Especially, the response is stronger in Soeumin than other constitutions. If we use Mahuang according to the Sasang constitution classification in clinic, we could not only minimize the anxiety but maximize the potential curative value.

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