Please select the eligibility criteria that correspond to the clinical trial below.
Title: An Evidence Base Study on the Clinical Effects of Integrated Western Medicine and Traditional Chinese Medicine for Diabetic Foot Ulcer Treatment
Brief Summary: Chronic foot ulcers occurring among diabetic patients are difficult to heal. The frequent elderly age with co-morbidities, vascular insufficiencies, peripheral neuropathies and super imposed infections, all contribute towards the chronicity and failure of treatment. Preserving the ulcerated limb is the patients' wish. On the other hand, an infected ulcer that never heals just unnecessarily prolongs suffering. Nevertheless, patients earnestly like to try all methods of healing before accepting amputation.

Objective:To determine whether a course of herbal preparation used as an adjuvant therapy for diabetic patients suffering from chronic foot ulcers may promote healing so that major leg amputation can be avoided.


Options:
A: Eligibility Criteria:

* The major criteria for eligibility included insulin dependence, as evidenced by deficient C-peptide secretion; an age of 13 to 39 years; and the absence of hypertension, hypercholesterolemia, and severe diabetic complications or medical conditions. To be eligible for the primary-prevention cohort, patients were required to have had insulin dependent diabetes mellitus (IDDM) for one to five years, to have no retinopathy as detected by seven-field stereoscopic fundus photography, and to have urinary albumin excretion of less than 40 mg per 24 hours. To be eligible for the secondary-intervention cohort, the patients were required to have IDDM for 1 to 15 years, to have very-mild to moderate nonproliferative retinopathy, and to have urinary albumin excretion of less than 200 mg per 24 hours.
B: Inclusion Criteria:

* Subjects diagnosed with type 2 diabetes and treated with oral anti-diabetic drugs (OADs) for at least 3 months
* HbA1c: 7.0-11.0 % (both incl.) in subjects on OAD monotherapy. 7.0-10.0 % (both incl.) in subjects on OAD combination therapy
* Body Mass Index (BMI) less than or equal 40 kg/m2

Exclusion Criteria:

* Subjects treated with insulin within the last three months
* Subjects with any serious medical condition
* Females of child bearing potential who are pregnant, breast-feeding or have the intention of becoming pregnant or not using adequate contraceptive methods
* Subjects using any drug (except for OADs), which in the Investigator's opinion could interfere with the glucose level (e.g. systemic corticosteroids)
C: Inclusion Criteria:

* Type 2 diabetes
* TTreatment with diet/exercise or with not more than half maximal dose of oral anti-diabetic drugs alone for at least 2 months
* Diet/exercise treated subjects with HbA1c between 7.0% and 11%, inclusive
* OAD (oral anti-diabetic drug) treated subjects with HbA1c between 7.0% and 10%, inclusive
* Body Mass Index (BMI) less than or equal to 45 kg/m\^2

Exclusion Criteria:

* Treatment with insulin for the last 3 months, except short-term treatment for intercurrent illness
* Treatment with any drug that could interfere with the glucose level (besides use of a single anti-diabetic compound)
* Any serious medical condition
D: Inclusion Criteria:

* Well Controlled diabetic state
* Presence of gangrene or non-healing ulcer in diabetic patients over the foot or feet. Infection should be well controlled.
* Good glycaemic control

Exclusion Criteria:

* Pregnant women and women at risk of conception
* Patients taking digitalis glycosides
* Patients with abnormal liver function tests
* Patients with plasma creatinine great then 150 umol/l or unstable renal function
* Poorly controlled Diabetes Mellitus
* Uncontrolled infection
* History of adverse reaction to herbal medicine
* Unstable medical conditions
* Non-compliance with regime

Answer: D