Please select the eligibility criteria that correspond to the clinical trial below.
Title: Multicenter, Randomized, Double-Blind, Placebo-Controlled, Dose Escalation Study of a Single Dose of PRT-201 Administered Immediately After Arteriovenous Graft Creation in Patients With Chronic Kidney Disease
Brief Summary: PRT-201 is a recombinant human type-I pancreatic elastase intended for local, long-lasting dilation of the AVG venous anastomosis and outflow vein. The goal of the treatment is to improve primary patency and long-term survival of AVGs and thereby provide patients with chronic kidney disease (CKD) a reliable and durable vascular access site for hemodialysis. Recent data indicate that up to three quarters of patients have loss of graft patency at one year, indicating a substantial need for new therapies. This clinical trial will explore the safety and dilatory effect of topically administered PRT-201 on the outflow vein of a newly placed upper extremity AVG.


Options:
A: Inclusion Criteria:

1. Age of at least 18 years.
2. Life expectancy of at least 6 months.
3. Chronic kidney disease on hemodialysis, or with anticipated start of hemodialysis within 6 months.
4. Planned creation of a new radiocephalic or brachiocephalic AVF. Revisions of an existing AVF and transposed AVF are not acceptable.

Exclusion Criteria:

1. History or presence of an arterial aneurysm.
2. Malignancy or treatment for malignancy within the previous 12 months with the exception of the following cancers if they have been resected: localized basal cell cancer, squamous cell skin cancer, or any cancer in situ.
3. Hepatic dysfunction defined as bilirubin, ALT \[SGPT\] or AST \[SGOT\] \>2.5 times the upper limit of normal, decompensated cirrhosis, ascites, or known esophageal or gastric varices.
4. Treatment with any investigational drug within the previous 30 days or investigational antibody therapy within 90 days prior to signing informed consent.
B: Inclusion Criteria:

1. Age of at least 18 years.
2. Life expectancy of at least 6 months.
3. Diagnosis of Chronic Kidney Disease (CKD).
4. Planned creation of a new radiocephalic arteriovenous fistula (AVF)-revision of an existing AVF is not eligible.
5. Ability to understand and comply with the requirements of the entire study and to communicate with the study team.
6. Written informed consent using a document that has been approved by the Institutional Review Board (IRB).
7. If female and of childbearing potential (premenopausal and not surgically sterile) must have a negative serum pregnancy test at the screening visit (Visit 1) and be willing to use contraception from the time of the screening visit to 2 weeks following study drug administration. Acceptable methods of birth control include abstinence, barrier methods, hormones, or intra uterine device.

Exclusion Criteria:

1. Malignancy or treatment for malignancy within the previous 12 months with the exception of the following cancers if they have been resected: localized basal cell or squamous cell skin cancer, or any cancer in situ.
2. Presence of any significant medical condition that might significantly confound the collection of safety and efficacy data in this study.
3. Previous treatment with PRT 201.
4. Treatment with any investigational drug within the previous 30 days or investigational antibody therapy within the previous 90 days prior to signing informed consent.
C: Inclusion Criteria:

1. Age of at least 18 years.
2. Chronic kidney disease with anticipated start of hemodialysis within 3 months or current hemodialysis dependence.
3. Planned creation of a new upper extremity AVG or "jump" graft

Exclusion Criteria:

1. Patients for whom this is the only potential site for an upper extremity vascular access.
2. Creation of a new AVG or "jump" graft in an upper extremity previously treated with an investigational gene or cell based therapy, or locally with an investigational pharmacological agent.
3. On physical examination or by other means, suspected proximal vein stenosis, occlusion, lack of continuity with the subclavian vein, central venous stenosis or central venous occlusion.
4. History or presence of an arterial aneurysm.
5. Previous treatment with PRT-201.
D: Inclusion Criteria:

* Age of at least 18 years.
* Chronic kidney disease with anticipated start of hemodialysis within six months or current hemodialysis dependence.
* Planned creation of a new AVF.

Exclusion Criteria:

* Patients for whom this is the only potential site for an AVF.
* By physical examination, absence of radial or ulnar artery flow or non-patent palmer arch.
* Treatment with any investigational agent within the previous 30 days or investigational antibody therapy within 90 days of signing informed consent.
* Pregnancy, lactation or plans to become pregnant during the course of the study.

Answer: C