Partners Calciphylaxis Biobank (PCB)
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ClinicalTrials.gov Identifier: NCT03032835 |
Recruitment Status :
Recruiting
First Posted : January 26, 2017
Last Update Posted : August 24, 2022
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Calciphylaxis, a vascular calcification disorder, is a rare and serious disorder characterized by calcification of dermal arterioles.
There are significant gaps in the understanding of the pathophysiology and risk factors for calciphylaxis. At present, there is no effective treatment. Uncertain pathobiology, rare incidence and lack of collaborative approach have been some of the major limiting factors towards treating calciphylaxis.
The Partners Calciphylaxis Biorepository (PCB) aims to address these gaps within calciphylaxis research by utilizing existing and, when necessary, developing new infrastructure to support the consent of patients and the collection of dedicated samples for a calciphylaxis repository.
Condition or disease |
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Calciphylaxis Calcific Uremic Arteriolopathy End Stage Renal Disease Chronic Kidney Diseases |
Calciphylaxis, a vascular calcification disorder, is a rare and serious disorder characterized by calcification of dermal arterioles.
There are significant gaps in the understanding of the pathophysiology and risk factors for calciphylaxis. At present, there is no effective treatment. Uncertain pathobiology, rare incidence and lack of collaborative approach have been some of the major limiting factors towards treating calciphylaxis.
The Partners Calciphylaxis Biorepository (PCB) aims to address these gaps within calciphylaxis research by utilizing existing and, when necessary, developing new infrastructure to support the consent of patients and the collection of dedicated samples for a calciphylaxis repository.
This repository is working in collaboration with the Partners Biobank as they will still be receiving samples from the PCB and storing them and distributing them according to their own procedures.
Study Type : | Observational [Patient Registry] |
Estimated Enrollment : | 300 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Target Follow-Up Duration: | 20 Years |
Official Title: | Partners Calciphylaxis Biobank and Patient Registry |
Study Start Date : | January 2017 |
Estimated Primary Completion Date : | December 2030 |
Estimated Study Completion Date : | December 2030 |

Group/Cohort |
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Study participants
No intervention
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- Number of patients with improvement in calciphylaxis skin lesions [ Time Frame: 6 months ]Skin lesions will be assessed by investigators at baseline (entry into study) and at 6 months to determine whether there is improvement. The investigators will determine clinical, laboratory and genetic predictors of this outcome in calciphylaxis patients.
- Number of patients with >30% improvement in pain severity [ Time Frame: 4weeks ]Pain severity will be assessed by investigators at baseline (entry into study) and at 4 weeks to determine whether there is improvement. Pain is measured using Wong-Baker Faces pain rating scale. The investigators will examine clinical, laboratory and genetic predictors of this outcome in calciphylaxis patients.
- Time to death in patients with calciphylaxis [ Time Frame: Up to 5 years ]Time to death is defined as time from the diagnosis of calciphylaxis to death (or to the end of follow up). The investigators will examine clinical, laboratory and genetic predictors of this outcome in calciphylaxis patients.
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Male or female ≥18 years old
- Skin lesions consistent with calciphylaxis diagnosis as determined by the treating clinician
- Informed of the investigational nature of the study and sign written Informed consent OR are eligible for surrogate consent process based on impaired decision making
Exclusion Criteria:
- Patients <18 years of age
- Prisoners

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03032835
Contact: Sagar U Nigwekar, MD, MMSc | 617-726-7872 | snigwekar@mgh.harvard.edu |
United States, Massachusetts | |
Massachusetts General Hospital | Recruiting |
Boston, Massachusetts, United States, 02114 | |
Contact: Sagar U Nigwekar, MD, MMSc 617-726-7872 snigwekar@mgh.harvard.edu |
Principal Investigator: | Sagar U Nigwekar, MD, MMSc | Massachusetts General Hospital |
Publications:
Responsible Party: | Sagar U. Nigwekar, MD, MMSc, Assistant in Medicine, Massachusetts General Hospital |
ClinicalTrials.gov Identifier: | NCT03032835 |
Other Study ID Numbers: |
2016P002690 |
First Posted: | January 26, 2017 Key Record Dates |
Last Update Posted: | August 24, 2022 |
Last Verified: | August 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Calciphylaxis Warfarin Dialysis |
Kidney Diseases Renal Insufficiency, Chronic Kidney Failure, Chronic Calciphylaxis Urologic Diseases Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Urogenital Diseases |
Male Urogenital Diseases Renal Insufficiency Chronic Disease Disease Attributes Pathologic Processes Calcinosis Calcium Metabolism Disorders Metabolic Diseases |