A Phase II Biomarker Trial of Gelatin Encapsulated Extract of American Ginseng Root (LEAG) in Breast Cancer

Southern Illinois University

Status and phase

Completed

Phase 2

Conditions

Breast Cancer

Treatments

Drug: American Ginseng root

Study type

Interventional

Funder types

Other

Identifiers

NCT00631852

PER-SCCI 07-001.1

Details and patient eligibility

About

This study was designed to explore the changes brought about by gelatin encapsulated extract of American Ginseng Root (LEAG) in breast cancer tumors and surrounding normal breast epithelial cells. Various tumor biomarkers, as well as inflammatory mediators, will be examined in tissue following LEAG treatment.

Full description

Asian ginseng (Panax ginseng) and its close relative American ginseng (Panax quinquefolium) are perennial aromatic herbs that are widely used in Asian medicine. Ginseng root is used as a tonic thought to increase the body's resistance to stress and fatigue, to increase endurance under heavy physical activity, and to improve well-being in age-related debilitation. Most of the ginseng consumed, even in Asian populations, is American ginseng, and the majority of American ginseng is grown and processed in Wisconsin, with quality and standardization overseen by the Ginseng Board of Wisconsin. Furthermore, in Asian medicine, Asian ginseng (Panax ginseng) and American ginseng (Panax quinquefolium) are common components in herbals used for cancer prevention and treatment. Indeed, retrospective studies have shown that patients who consumed ginseng on a regular basis experienced cancers at a reduced rate, however, breast cancer was not considered. Ginseng has been used medicinally for over 2000 years and there are no substantiated serious adverse effects, and few, if any, non-serious adverse effects. The World Health Organization lists ginseng as a traditional medicine with very low toxicity. Clinical trials have also demonstrated an anti-hyperglycemic action of American ginseng. These studies utilized capsules containing dried, ground Ontario-grown P. qinquefolius L. root. The ground AG root preparation had an onset of action of 40 minutes. They found no significant increase in anti-hyperglycemic action after 40 minutes and no significant increase in anti-hyperglycemic action using 1 gram versus 3 gram dosing.

LEAG is a standardized preparation of lyophilized water-extract of American ginseng root in 250-mg gelatin capsules. The ginseng was purchased through the Ginseng Board of Wisconsin and the lyophilized extract has been certified for percentage of each and total ginsenoside content and screened for safe levels of minerals, metals, and pesticides by ConsumerLab.com, a leading testing service company of dietary supplements.

Enrollment

16 patients

Sex

Female

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Patients with cytologically confirmed breast cancer with biopsy showing invasive or non-invasive (DCIS) at least 1.0 cm greatest diameter on imaging
Surgical patients undergoing lumpectomy, subtotal or total mastectomy
18 years of age or greater
female
available tissue blocks from diagnostic biopsy
negative pregnancy test, medical history of surgical sterilization, or 1 year post menopausal
must be willing to forego surgery for minimum of 5 days
ability and willingness to sign written consent
if hypertensive, on stable dose of medication at least 30 days
if diabetic, well controlled (HbA1C < 8.5 within past 60 days or documented FPG < 140 mg/dl for 3 consecutive days
ECOG status < 2 or Karnofsky of 60% or greater

Exclusion criteria

previous or current malignancy, excluding non-melanomic skin cancer
evidence of distant metastatic disease
history of chemotherapy, biologic or radiotherapy with 6 months of biopsy
usage of herbal supplements or alternative medications not approved by the FDA within 1 week of starting study drug. LEAG or related ginseng products, and combination products containing ginseng, should be discontinued within 6 weeks of starting study drug
history of allergic reactions attributed to compounds of similar chemical or biologic composition to LEAG
history of chronic inflammatory process, including, but not limited to, rheumatoid arthritis and lupus. This includes patients on concurrent systemic steroids or anti-inflammatory medications
active bleeding or a pathological condition that carries a high risk of bleeding
any swallowing dysfunction
uncontrolled intercurrent illness
poorly controlled diabetes (control indicated with HbA1c < 8.5 within past 60 days or documented fasting blood glucose < 140 mg/dl for three consecutive days)
known diabetics who have experienced episodes of symptomatic hypoglycemia in the last 6 months are also considered poorly controlled and will be excluded from study participation.
uncontrolled hypertension (SBP > 140 mmHg or DBP > 90 mmHG)
pregnant or breast feeding women Women must be willing to use birth control throughout study duration.
current investigational medications or treatment with an investigational agent within 6 weeks prior to biopsy
current coumadin therapy or who have been treated with coumadin within the 2 weeks prior to biopsy
current monoamine oxidase inhibitors treatment