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CompletedNCT00752895Updated Sep 28, 2021Results posted

American Ginseng Extract in Preventing Respiratory Infection and in Reducing Antibiotic Use in Patients With CLL

A Phase 2 interventional study of American ginseng and Placebo in Leukemia, sponsored by Wake Forest University Health Sciences. Completed at 125 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-09-28.

Sponsored by Wake Forest University Health Sciences · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
293
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

RATIONALE: American ginseng extract may prevent or reduce acute respiratory illness in patients with chronic lymphocytic leukemia. It is not yet known whether American ginseng extract is more effective than a placebo in preventing respiratory infections.

PURPOSE: This randomized trial is studying the side effects of American ginseng extract and to see how well it works compared with a placebo in preventing respiratory infection and in reducing antibiotic use in patients with chronic lymphocytic leukemia.

Read the detailed description

OBJECTIVES:

Primary

  • To assess the effect of American ginseng extract on the number of days of acute respiratory infection (ARI) during the peak respiratory illness season (January-March) in patients with chronic lymphocytic leukemia (CLL).
  • To determine the safety of American ginseng extract in these patients evaluated according to NCI CTCAE v3.0.

Secondary

  • To assess the effect of this treatment on antibiotic use days (AUDs).
  • To assess the effect of this treatment on the rate of all infections diagnosed by a physician.
  • To assess the effect of this treatment on the duration and severity of each ARI episode.
  • To assess the effect of this treatment on major infections defined as infection severe enough to require hospitalization or intravenous antibiotics.
  • To assess the effect of this treatment on the incidence of herpes zoster infection defined as an episode of physician-diagnosed zoster infection.
  • To assess the effect of this treatment on CLL disease activity (i.e., serum IgG, total lymphocyte count, platelet count, and Rai staging).
  • To determine the incidence of ARI and type of illness in an untreated cohort of CLL patients over an entire winter respiratory illness season (January 1- April 30).

Tertiary

  • To determine the effect of this treatment on the incidence of influenza and respiratory syncytial virus confirmed by a physician.

OUTLINE: This is a multicenter study. Patients are stratified according to antibiotic prophylaxis with trimethoprim-sulfamethoxazole (yes vs no), serum IgG (≤ 500 mg/dL vs > 500 mg/dL), and influenza vaccine status (yes vs no). Patients are randomized to 1 of 2 treatment arms.

  • Arm I: Patients receive oral American ginseng extract twice daily.
  • Arm II: Patients receive oral placebo twice daily. Treatment in both arms continues for up to 4 months in the absence of illness or adverse events.

After completion of study treatment, patients are followed at 4 weeks by phone.

02

Conditions studied

  • Leukemia

Keywords

  • stage I chronic lymphocytic leukemia
  • stage II chronic lymphocytic leukemia
  • stage III chronic lymphocytic leukemia
  • stage IV chronic lymphocytic leukemia
03

In context

Respiratory Tract Infections

1,031 studies on the registry are indexed under Respiratory Tract Infections; 144 are open to participants now.

This study's enrollment of 293 is above the median of 199 across 698 interventional studies indexed under Respiratory Tract Infections.

Browse Respiratory Tract Infections studies →

Lead sponsor

Wake Forest University Health Sciences is the lead sponsor of 1,320 studies on the registry; 199 are open to participants now.

Of its 323 completed or terminated interventional studies of FDA-regulated products, 243 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

DISEASE CHARACTERISTICS:

  • Diagnosis of chronic lymphocytic leukemia (CLL)

    • Phenotypic evidence (i.e., flow cytometry or bone marrow biopsy) of disease
  • Untreated CLL allowed

PATIENT CHARACTERISTICS:

  • ECOG performance status (PS) 0-2 OR Karnofsky PS 60-100%
  • Life expectancy > 12 months
  • Creatinine \< 2.0 mg/dL OR creatinine clearance > 50 mL/min
  • AST/ALT ≤ 2.5 times upper limit of normal (ULN)
  • Total bilirubin ≤ 1.5 times ULN
  • Not pregnant or nursing
  • Fertile patients must use effective contraception prior to and during study treatment
  • No known cirrhosis, collagen vascular disease, multiple sclerosis, or HIV positivity
  • No other prior or concurrent malignancies except for non-melanoma skin cancers or carcinoma in situ of the cervix

    • Other prior malignancies allowed provided the patient has been disease-free for > 5 years
  • No uncontrolled intercurrent illness including, but not limited to, any of the following:

    • Ongoing or active infection
    • Symptomatic congestive heart failure
    • Unstable angina pectoris
    • Cardiac arrhythmia
  • No psychiatric or social illness that would limit compliance with study requirements
  • No history of allergy or other adverse response to ginseng products
  • No history of seasonal or environmental allergies that require ongoing treatment with antihistamines, intranasal corticosteroids, or systemic corticosteroids

PRIOR CONCURRENT THERAPY:

  • More than 3 months since prior and no concurrent chlorambucil
  • At least 1 month since prior and no other concurrent herbal ginseng products
  • No prior or concurrent fludarabine, alemtuzumab, rituximab, intravenous immunoglobulin, or hematopoietic stem cell transplantation
  • No concurrent corticosteroids (20 mg/day of prednisone or equivalent)
  • No concurrent antibiotic prophylaxis, except for trimethoprim-sulfamethoxazole
  • No concurrent warfarin
  • No other concurrent investigational or commercial agents or other therapies with the intent to treat the patient's malignancy
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
293 participants (actual)

Study arms

  • Experimental
    Arm I - Ginseng

    Patients receive oral American ginseng extract twice daily.

    Dietary Supplement: American ginseng

  • Placebo comparator
    Arm II - Placebo

    Patients receive oral placebo twice daily.

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementAmerican ginseng

    Given orally

  • Dietary supplementPlacebo

    Given orally

06

What researchers measure

Primary outcomes

  1. Acute Respiratory Infection (ARI) Days

    An ARI day was defined as any day for which the subject experienced one or more respiratory symptoms (cough, sore throat, nasal or sinus congestion, or runny nose) and one or more systemic symptoms (feverishness, chills/sweats, myalgia (muscle aches), fatigue, headache, poor endurance or increased shortness of breath) between January and March.

    Time frame: 3 months

Secondary outcomes

  1. Number of Antibiotic Use Days

    An antibiotic day was defined as a day on which the subject took one or more antibiotics between January and March.

    Time frame: 3 months

07

Results

Posted Nov 1, 2015

Participant flow

Participant flow — Overall Study
MilestoneArm I - GinsengArm II - Placebo
Started147146
Completed139143
Not completed83
Withdrew: Withdrawal by subject83

Outcome measures

PrimaryAcute Respiratory Infection (ARI) Days

An ARI day was defined as any day for which the subject experienced one or more respiratory symptoms (cough, sore throat, nasal or sinus congestion, or runny nose) and one or more systemic symptoms (feverishness, chills/sweats, myalgia (muscle aches), fatigue, headache, poor endurance or increased shortness of breath) between January and March.

Time frame:
3 months
Reported as:
Mean · days
Acute Respiratory Infection (ARI) Days
daysArm I - GinsengArm II - Placebo
Acute Respiratory Infection (ARI) Days8.30 ± 16.876.78 ± 13.27
Statistical analysis
  • Arm I - Ginseng vs Arm II - Placebo · Negative binomial regression · p = 0.295 (This p-value is not adjusted for multiple comparisons. The a priori threshold for statistical significance was 0.05.)
SecondaryNumber of Antibiotic Use Days

An antibiotic day was defined as a day on which the subject took one or more antibiotics between January and March.

Time frame:
3 months
Reported as:
Mean · days
Number of Antibiotic Use Days
daysArm I - GinsengArm II - Placebo
Number of Antibiotic Use Days1.12 ± 3.421.55 ± 6.46
Statistical analysis
  • Arm I - Ginseng vs Arm II - Placebo · Negative binomial regression · p = 0.820 (This p-value is not adjusted for multiple comparisons. The a priori threshold for statistical significance was 0.05.)

Adverse events

Collected over 5 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Arm I - Ginseng—11/140 (7.9%)121/140 (86.4%)
Arm II - Placebo—16/143 (11.2%)126/143 (88.1%)
Most frequent serious events
Showing 10 of 35
Most frequent serious events
EventArm I - GinsengArm II - Placebo
Pain - JointMusculoskeletal and connective tissue disorders1/1403/143
Pain: Abdomen NOSGeneral disorders0/1403/143
DyspneaRespiratory, thoracic and mediastinal disorders2/1402/143
Cardiac ischemia/fnfarctionCardiac disorders1/1402/143
HyperglycemiaMetabolism and nutrition disorders1/1402/143
Pain: Chest WallGeneral disorders0/1402/143
HypercalcemiaMetabolism and nutrition disorders1/1400/143
DiarrheaGastrointestinal disorders1/1400/143
Diarrhea - without colostomyGastrointestinal disorders1/1400/143
DizzinessEar and labyrinth disorders1/1400/143
Most frequent other events
Showing 10 of 14
Most frequent other events
EventArm I - GinsengArm II - Placebo
Pain - JointMusculoskeletal and connective tissue disorders57/14065/143
InsomniaPsychiatric disorders55/14036/143
HyperglycemiaMetabolism and nutrition disorders32/14044/143
Urinary Frequency / Urgency - PllakiuriaRenal and urinary disorders40/14033/143
HeadacheNervous system disorders38/14039/143
HeartburnGastrointestinal disorders27/14036/143
HypertensionCardiac disorders21/14023/143
Diarrhea - without colostomyGastrointestinal disorders15/14019/143
Neurology - Other - NervousnessNervous system disorders18/14011/143
DizzinessNervous system disorders17/14018/143

Baseline characteristics

All randomized participants

Age, Categorical
Age, Categorical(Participants)Arm I - GinsengArm II - PlaceboTotal
<=18 years000
Between 18 and 65 years7164135
>=65 years7682158
Age, Continuous
Age, Continuous(years)Arm I - GinsengArm II - PlaceboTotal
Median65 (43 to 87)66 (44 to 82)65 (43 to 87)
Sex: Female, Male
Sex: Female, Male(Participants)Arm I - GinsengArm II - PlaceboTotal
Female6560125
Male8286168
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Arm I - GinsengArm II - PlaceboTotal
Hispanic or Latino022
Not Hispanic or Latino147144291
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Arm I - GinsengArm II - PlaceboTotal
American Indian or Alaska Native000
Asian011
Native Hawaiian or Other Pacific Islander000
Black or African American235
White145141286
More than one race000
Unknown or Not Reported011
Region of Enrollment
Region of Enrollment(participants)Arm I - GinsengArm II - PlaceboTotal
United States147146293
08

Study locations

125 sites
  • Providence Saint Joseph Medical Center - Burbank
    Burbank, California 91505, United States
  • St. Joseph Hospital Regional Cancer Center - Orange
    Orange, California 92868, United States
  • Helen and Harry Gray Cancer Center at Hartford Hospital
    Hartford, Connecticut 06102-5037, United States
  • Saint Anthony's Hospital at Saint Anthony's Health Center
    Alton, Illinois 62002, United States
  • Rush-Copley Cancer Care Center
    Aurora, Illinois 60504, United States
  • St. Joseph Medical Center
    Bloomington, Illinois 61701, United States
  • Graham Hospital
    Canton, Illinois 61520, United States
  • Memorial Hospital
    Carthage, Illinois 62321, United States
  • Eureka Community Hospital
    Eureka, Illinois 61530, United States
  • Evanston Northwestern Healthcare - Evanston Hospital
    Evanston, Illinois 60201-1781, United States
  • Galesburg Clinic, PC
    Galesburg, Illinois 61401, United States
  • Galesburg Cottage Hospital
    Galesburg, Illinois 61401, United States
  • Mason District Hospital
    Havana, Illinois 62644, United States
  • Hopedale Medical Complex
    Hopedale, Illinois 61747, United States
  • McDonough District Hospital
    Macomb, Illinois 61455, United States
  • Cardinal Bernardin Cancer Center at Loyola University Medical Center
    Maywood, Illinois 60153, United States
  • Trinity Cancer Center at Trinity Medical Center - 7th Street Campus
    Moline, Illinois 61265, United States
  • Good Samaritan Regional Health Center
    Mount Vernon, Illinois 62864, United States
  • BroMenn Regional Medical Center
    Normal, Illinois 61761, United States
  • Community Cancer Center
    Normal, Illinois 61761, United States
  • Community Hospital of Ottawa
    Ottawa, Illinois 61350, United States
  • Oncology Hematology Associates of Central Illinois, PC - Ottawa
    Ottawa, Illinois 61350, United States
  • Cancer Treatment Center at Pekin Hospital
    Pekin, Illinois 61554, United States
  • Proctor Hospital
    Peoria, Illinois 61614, United States
  • CCOP - Illinois Oncology Research Association
    Peoria, Illinois 61615, United States
  • Oncology Hematology Associates of Central Illinois, PC - Peoria
    Peoria, Illinois 61615, United States
  • Methodist Medical Center of Illinois
    Peoria, Illinois 61636, United States
  • OSF St. Francis Medical Center
    Peoria, Illinois 61637, United States
  • Illinois Valley Community Hospital
    Peru, Illinois 61354, United States
  • Perry Memorial Hospital
    Princeton, Illinois 61356, United States
  • St. Margaret's Hospital
    Spring Valley, Illinois 61362, United States
  • Carle Cancer Center at Carle Foundation Hospital
    Urbana, Illinois 61801, United States
  • CCOP - Carle Cancer Center
    Urbana, Illinois 61801, United States
  • St. Vincent Indianapolis Hospital
    Indianapolis, Indiana 46260, United States
  • St. Vincent Oncology Center
    Indianapolis, Indiana 46260, United States
  • Saint Anthony Memorial Health Centers
    Michigan City, Indiana 46360, United States
  • Hematology Oncology Associates of the Quad Cities
    Bettendorf, Iowa 52722, United States
  • Genesis Regional Cancer Center at Genesis Medical Center
    Davenport, Iowa 52803, United States
  • Genesis Medical Center - West Campus
    Davenport, Iowa 52804, United States
  • Cancer Center of Kansas, PA - Chanute
    Chanute, Kansas 66720, United States
  • Cancer Center of Kansas, PA - Dodge City
    Dodge City, Kansas 67801, United States
  • Cancer Center of Kansas, PA - El Dorado
    El Dorado, Kansas 67042, United States
  • Cancer Center of Kansas-Independence
    Independence, Kansas 67301, United States
  • Cancer Center of Kansas, PA - Kingman
    Kingman, Kansas 67068, United States
  • Southwest Medical Center
    Liberal, Kansas 67901, United States
  • Cancer Center of Kansas, PA - Newton
    Newton, Kansas 67114, United States
  • Cancer Center of Kansas, PA - Parsons
    Parsons, Kansas 67357, United States
  • Cancer Center of Kansas, PA - Pratt
    Pratt, Kansas 67124, United States
  • Cancer Center of Kansas, PA - Salina
    Salina, Kansas 67042, United States
  • Cancer Center of Kansas, PA - Wellington
    Wellington, Kansas 67152, United States
  • Associates in Womens Health, PA - North Review
    Wichita, Kansas 67208, United States
  • Cancer Center of Kansas, PA - Medical Arts Tower
    Wichita, Kansas 67208, United States
  • Cancer Center of Kansas, PA - Wichita
    Wichita, Kansas 67214, United States
  • CCOP - Wichita
    Wichita, Kansas 67214, United States
  • Via Christi Cancer Center at Via Christi Regional Medical Center
    Wichita, Kansas 67214, United States
  • Cancer Center of Kansas, PA - Winfield
    Winfield, Kansas 67156, United States
  • Pennington Cancer Center at Baton Rouge General
    Baton Rouge, Louisiana 70806, United States
  • Mary Bird Perkins Cancer Center - Baton Rouge
    Baton Rouge, Louisiana 70809, United States
  • MBCCOP - LSU Health Sciences Center
    New Orleans, Louisiana 70112, United States
  • Medical Center of Louisiana - New Orleans
    New Orleans, Louisiana 70112, United States
  • CCOP - Ochsner
    New Orleans, Louisiana 70121, United States
  • Ochsner Cancer Institute at Ochsner Clinic Foundation
    New Orleans, Louisiana 70121, United States
  • Hickman Cancer Center at Bixby Medical Center
    Adrian, Michigan 49221, United States
  • Green Bay Oncology, Limited - Escanaba
    Escanaba, Michigan 49431, United States
  • Dickinson County Healthcare System
    Iron Mountain, Michigan 49801, United States
  • Haematology-Oncology Associates of Ohio and Michigan, PC
    Lambertville, Michigan 48144, United States
  • Community Cancer Center of Monroe
    Monroe, Michigan 48162, United States
  • Mercy Memorial Hospital - Monroe
    Monroe, Michigan 48162, United States
  • MeritCare Bemidji
    Bemidji, Minnesota 56601, United States
  • Southeast Missouri Regional Cancer Center at Southeast Missouri Hospital
    Cape Girardeau, Missouri 63701, United States
  • Saint Francis Medical Center
    Cape Girardeau, Missouri 63703, United States
  • Midwest Hematology Oncology Group, Incorporated
    Saint Louis, Missouri 63109, United States
  • CCOP - St. Louis-Cape Girardeau
    Saint Louis, Missouri 63141, United States
  • David C. Pratt Cancer Center at St. John's Mercy
    Saint Louis, Missouri 63141, United States
  • CCOP - Montana Cancer Consortium
    Billings, Montana 59101, United States
  • Hematology-Oncology Centers of the Northern Rockies - Billings
    Billings, Montana 59101, United States
  • Northern Rockies Radiation Oncology Center
    Billings, Montana 59101, United States
  • St. Vincent Healthcare Cancer Care Services
    Billings, Montana 59101, United States
  • Billings Clinic - Downtown
    Billings, Montana 59107-7000, United States
  • Bozeman Deaconess Cancer Center
    Bozeman, Montana 59715, United States
  • St. James Healthcare Cancer Care
    Butte, Montana 59701, United States
  • Great Falls Clinic - Main Facility
    Great Falls, Montana 59405, United States
  • Northern Montana Hospital
    Havre, Montana 59501, United States
  • St. Peter's Hospital
    Helena, Montana 59601, United States
  • Glacier Oncology, PLLC
    Kalispell, Montana 59901, United States
  • Kalispell Medical Oncology at KRMC
    Kalispell, Montana 59901, United States
  • Kalispell Regional Medical Center
    Kalispell, Montana 59901, United States
  • Community Medical Center
    Missoula, Montana 59801, United States
  • Guardian Oncology and Center for Wellness
    Missoula, Montana 59804, United States
  • Montana Cancer Specialists at Montana Cancer Center
    Missoula, Montana 59807-7877, United States
  • Montana Cancer Center at St. Patrick Hospital and Health Sciences Center
    Missoula, Montana 59807, United States
  • Cancer Resource Center - Lincoln
    Lincoln, Nebraska 68510, United States
  • Alegant Health Cancer Center at Bergan Mercy Medical Center
    Omaha, Nebraska 68124, United States
  • Creighton University Medical Center
    Omaha, Nebraska 68131-2197, United States
  • Center for Cancer Care at Exeter Hospital
    Exeter, New Hampshire 03833, United States
  • CCOP - North Shore University Hospital
    Manhasset, New York 11030, United States
  • Don Monti Comprehensive Cancer Center at North Shore University Hospital
    Manhasset, New York 11030, United States
  • Long Island Jewish Medical Center
    New Hyde Park, New York 11042, United States
  • CCOP - MeritCare Hospital
    Fargo, North Dakota 58122, United States
  • MeritCare Broadway
    Fargo, North Dakota 58122, United States

Showing the first 100 of 125 sites.

09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00752895
Lead sponsor
Wake Forest University Health Sciences
Collaborators
National Cancer Institute (NCI)
Responsible party
Sponsor
First posted
Sep 16, 2008
Start date
Sep 1, 2008
Primary completion
Dec 1, 2008
Completion
Jun 1, 2009
Results posted
Nov 1, 2015
Last update
Sep 28, 2021

Study contacts

Kevin High, MD
principal investigator · Wake Forest University Health Sciences

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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