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Table 1 Characteristics of the 50 included studies

From: Pilot and feasibility trials in traditional Chinese medicine: a literature review of current practice

First study author

Publication year

Journal

Country

Type of TCM

Number of participants randomized

Type of pilot trial

Agarwal

2014

Asian Journal of Pharmaceutical and Clinical Research

India

Herb

62

NFT

Ahn

2007

Acupuncture in Medicine

USA

Acupuncture

32

FDT

Avis

2008

The Journal of The North American Menopause Society

USA

Acupuncture

104

NFT

Chen

2003

Maturitas

China

Herb

44

FDT

Choi

2012

The Journal of Alternative and Complementary Medicine

Korea

Herb

40

NFT

Chung

2012

Journal of Affective Disorders

China

Acupuncture

50

FDT

Gong

2019

Evidence-Based Complementary and Alternative Medicine

China

Herb

63

NFT

Hsu

2008

Advance Access Publication

China

Herb

24

NFT

Huang

2019

Plos One

China

Herb

60

FDT

Iwasaki

2007

Journal of the American Geriatrics Society

Japan

Herb

48

NFT

Jones

2001

BMC Complementary and Alternative Medicine

China

Qigong

117

NFT

Kainuma

2004

Human Psychopharmacology

Japan

Herb

33

NFT

Kalman

2007

Nutrition Journal

USA

Chinese patent medicine

60

NFT

Kampman

2003

Addictive Behaviors

USA

Herb

14

NFT

Kang

1999

Hong Kong Medical Journal

China

Chinese patent medicine

120

NFT

Kong

2009

Cerebrovasc Diseases

Singapore

Herb

60

FDT

Kuo

2012

Evidence-Based Complementary and Alternative Medicine

China

Herb

28

NFT

Kuratsune

2010

Phytomedicine

Japan

Herb

12

NFT

Ladas

2010

Cancer

USA

Herb

106

FDT

Lee

2010

Complementary Therapies in Medicine

China

Herb

28

NFT

Lee

2011

Planta Medica

Korea

Chinese patent medicine

40

NFT

Li

2009

Complementary Therapies in Medicine

China

Herb

24

NFT

Li

2015

HIV Clinical Trials

China

Herb

140

NFT

Liew

2015

Asia Pacific allergy

Singapore

Chinese patent medicine

44

FDT

Liu

2018

Evidence-Based Complementary and Alternative Medicine

China

Chinese patent medicine

20

NFT

Luo

2018

European Journal of Integrative Medicine

China

Acupuncture

20

FDT

Noorbala

2005

Journal of Ethnopharmacology

Iran

Herb

88

NFT

Otto

1998

American Academy of Addiction Psychiatry

USA

Acupuncture

19

NFT

Pan

2018

Chinese Journal of Integrative Medicine

China

Other

60

NFT

Reshef

2013

Sleep Disorders

Israel

Acupuncture

27

NFT

Ritenbaugh

2008

The Journal of Alternative and Complementary Medicine

USA

Other

18

FDT

Scheid

2015

Maturitas

United Kingdom

Herb and/or acupuncture

42

FDT

Shelmadine

2017

The Journal of Alternative and Complementary Medicine

USA

Chinese patent medicine

56

NFT

Singh

2010

Indian Journal of Medical Sciences

India

Herb

7

NFT

Sitzia

2019

Clinical Trial

Italy

Other

56

NFT

Sordi

2019

Journal of Natural Remedies

Brazil

Herb

70

NFT

Spasov

2000

Phytomedicine

Russia

herb

128

NFT

Stockert

2007

Pediatr Allergy Immunol

Austria

Acupuncture

12

NFT

Tao

2013

Evidence-Based Complementary and Alternative Medicine

France

Other

40

NFT

Tsai

2018

Complementary Therapies in Medicine

China

Herb

160

NFT

Wang

2014

Prev Chronic Dis

USA

Herb and/or acupuncture

70

FDT

Wei

2015

International Journal of Clinical and Experimental Medicine

China

Chinese patent medicine

18

NFT

Wong

2006

Journal of Child Neurology

China

Acupuncture

120

NFT

Wu

2014

Journal of Clinical Medical

China

Acupuncture and massage

36

NFT

Wu

2015

Neuropsychiatric Disease and Treatment

China

Herb

46

NFT

Xu

2009

Phytotherapy Research

China

Chinese patent medicine

30

NFT

Yu

2018

Journal of Acupuncture and Meridian Studies

Canada

Acupuncture

60

NFT

Zhang

2015

Journal of Alzheimer’s Disease

China

Chinese patent medicine

12

NFT

Zou

2017

Journal of Nutrition Health & Aging

Canada

Other

21

FDT

Zou

2017

Inquiry

Canada

Other

36

NFT

  1. FDT trials in preparation for a future definitive trial, NFT non-feasibility trials