Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Open Label Study Evaluating the Effect on Renal Function of Intravenous Bonviva Given by Injection or Infusion, Compared With Oral Alendronate, in Postmenopausal Women With Osteoporosis at High Risk for Renal Disease.
Brief Summary: This 3 arm study will evaluate renal safety after administration of an intravenous (iv) injection or infusion of Bonviva, compared to oral alendronate, in patients with postmenopausal osteoporosis, at increased risk of renal disease. Patients will be randomized to receive Bonviva 3mg intravenous (iv) by a) injection or b) infusion once every 3 months, or alendronate 70mg per oral (po) weekly. The anticipated time on study treatment is 3-12 months, and the target sample size is 500+ individuals.


Options:
A: Inclusion Criteria:

* Aged 21 years or older;
* Chronic maintenance dialysis of at least 3 months' duration;
* Osteoporotic by DXA of either spine or total hip (Women: post-menopausal or age ≥ 50 with T-score ≤ -2.5; Men: age ≥ 50 with T-score ≤ -2.5; All others, Z-score ≤ -2.5);
* Mental competence;
* Willingness to participate in the study;
* Normal serum calcium.

Exclusion Criteria:

* Pregnancy or breast feeding;
* Incarceration;
* Systemic illnesses or organ diseases that may affect bone (except type 1 or type 2 diabetes mellitus);
* Clinical condition that may limit study participation (e.g., unstable angina, respiratory distress, infections).
* Chronic alcoholism and/or drug addiction;
* Known Paget 's disease of bone;
* Prior external beam or implant radiation therapy involving the skeleton;
* More than 3 computed tomography (CT) scans in the prior 12 months (to avoid excessive radiation exposure);
* Participation in a study of an investigational drug during the past 90 days;
* Planning to move out of the area within 1 year of the study;
* On active transplant list;
* BMD t-score of the radius less than -3.5 by DXA (to avoid the known potential negative effects of teriparatide treatment on BMD of the radius);
* Planned or anticipated oral surgery within the next 12 months;
* Inability to stand or sit upright for at least 30 minutes;
* Abnormalities of the esophagus which delay esophageal emptying such as stricture or achalasia;
* Treatment within last 6 months with drugs that may affect bone metabolism including bisphosphonates and teriparatide (except for treatment with calcitriol, vitamin D analogs and/or calcimimetics);
* Current treatment with medicines containing digoxin or warfarin;
* Calcidiol level below the normal range. (The current routine clinical practice in our dialysis clinics is to check calcidiol status twice yearly and supplement with vitamin D according to serum calcidiol levels. It is therefore unlikely that a substantial number of patients will be excluded due to this exclusion criterion.)
B: Inclusion Criteria:

* Subjects with CKD Stage 3 (GFR between 30 and 59ml/min)
* Subjects must be 18 years of age or older
* Willingness to provide written informed consent

Exclusion Criteria:

* Subjects unable to give informed consent or whom have an expected life-span of less than 3 months
* Subjects undertaking renal replacement therapy (dialysis or transplantation)
* Subjects already taking bisphosphonates
* Subjects with recent fracture (within the last 3 months)
* Subjects scheduled to have a kidney transplant from a known living donor
* Subjects with active gastro-oesophageal reflux disease or peptic ulcer disease
* Subjects who are pregnant or planning on becoming pregnant in the next 18 months
C: Inclusion Criteria:

* female patients, \>=60 years of age;
* \>=5 years postmenopausal;
* confirmed osteoporosis, at increased risk for renal disease.

Exclusion Criteria:

* inability to stand or sit upright for 30 minutes;
* hypersensitivity to bisphosphonates;
* malignant disease (other than successfully resected basal cell cancer) within previous 10 years, or breast cancer diagnosed within previous 20 years;
* previous administration of an i.v. bisphosphonate;
* oral bisphosphonate treatment other than study medication within 30 days prior to the baseline dosing visit and during the study;
* history of major upper gastrointestinal disease.
D: Inclusion Criteria:

1. Have received maintenance PD for more than 3 months at National Taiwan University Hospital,
2. Have high CPP level (≧50), and
3. Have chest X-ray proven aortic calcification or coronary artery calcification proven before.

Exclusion Criteria:

Patients are excluded if they have any one of the following conditions:

1. Had been hospitalized in recent 3 months due to severe comorbid diseases,
2. Are hypersensitive to alendronate or any of its components,
3. Have esophageal diseases
4. Are not able to stand or sit upright for 30 minutes,
5. Have refractory hypocalcemia, or
6. Patients who are pregnant.

Answer: C