ClinicalTrials.gg
CompletedNCT03264625Updated Aug 18, 2021

The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis

A Phase 2 interventional study of Cholecalciferol (2000iu qd) and Routine therapy for PD in Peritoneal Dialysis-associated Peritonitis and Vitamin D Deficiency, sponsored by Peking University First Hospital. Completed at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-08-18.

Sponsored by Peking University First Hospital · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a pilot randomized, controlled trial of Vitamin D supplementation in patients on peritoneal dialysis to determine the feasibility of a future full-scale RCT exploring if oral administration of vitamin D3 could reduce the risk of subsequent Peritoneal dialysis-related (PD-related) peritonitis.

Aims of the study:

Aim 1: To determine the feasibility of oral vitamin D supplementation among PD patients who have recovered from a recent episode of peritonitis.

Aim 2: To examine the effect of vitamin D supplementation on the risk for peritonitis among patients on peritoneal dialysis.

Read the detailed description

Patients will be screened for eligibility one month after the onset of PD-related peritonitis, those who meet the inclusion criteria will be enrolled in this study.

All consenting participants will be randomized into the vitamin D treatment group or the control group, general information and baseline biochemistry data would be collected. Patients in the treatment group will be treated with oral Cholecalciferol (2000IU/day) apart from routine treatment for PD. Those in the control group will receive routine treatment for PD. Both groups will be followed for 12 months. During the observational period, any onset of subsequent peritonitis will be recorded, serum 25(OH)D, biochemical indices will be measured every 3 months. Follow up would take place frequently, any outcome events would be recorded.

Aims and hypotheses:

Aim 1: To determine the feasibility of oral vitamin D supplementation among PD patients who have recovered from a recent episode of peritonitis.

Hypothesis1: A large、full-scale randomized controlled trail on the effects of oral vitamin D on the risk for peritonitis among PD patients is feasible.

Aim 2: To examine the effect of vitamin D supplementation on the risk for peritonitis among patients on peritoneal dialysis.

Hypothesis 2: Oral supplementation of vitamin D will reduce the risk of subsequent peritoneal dialysis.

02

Conditions studied

  • Peritoneal Dialysis-associated Peritonitis
  • Vitamin D Deficiency

Keywords

  • Cholecalciferol
  • Peritoneal dialysis
  • Peritonitis
03

In context

Vitamin D Deficiency

801 studies on the registry are indexed under Vitamin D Deficiency; 60 are open to participants now.

This study's enrollment of 60 is below the median of 78 across 590 interventional studies indexed under Vitamin D Deficiency.

Browse Vitamin D Deficiency studies →

Lead sponsor

Peking University First Hospital is the lead sponsor of 390 studies on the registry; 186 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Medically stable and receiving peritoneal dialysis (PD) for>1 months
  2. Age at least 18 years.
  3. Serum 25(OH)D\<75nmol/l (30ng/ml)
  4. Adequate dialysis on evaluation, weekly Kt/V ≥ 1.5 and no clinical uremic symptoms

Exclusion criteria

Exclusion Criteria:

  1. Receive Vitamin D2/D3 or drugs known to alter serum 25-hydroxyvitamin D (25(OH)D) levels during the previous 12 months;
  2. History of allergic reaction to Cholecalciferol;
  3. Current or past malignant disease, active hepatitis or hepatic failure, acute systemic infection, active diseases, severe digestive malabsorption or eating disorder, /AIDS;
  4. A high probability (assessed by the recruiting physician) of receiving a kidney transplant or transferring to hemodialysis (HD) or drop-out due to socioeconomic causes within 6 months;
  5. Pregnant or breastfeeding;
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Treatment group

    Patients will receive oral Cholecalciferol (2000IU qd) apart from routine therapy for PD

    Drug: Cholecalciferol (2000iu qd) · Other: Routine therapy for PD

  • Placebo comparator
    Control group

    Patients randomized to the placebo group will receive routine therapy for PD.

    Other: Routine therapy for PD

Interventions

  • Patients will receive oral Cholecalciferol (2000IU qd) apart from routine therapy for PD

    Also known as: Natural Vitamin D3

  • OtherRoutine therapy for PD

    Patients randomized to the placebo group will receive routine therapy for PD.

06

What researchers measure

Primary outcomes

  1. Recruitment rate of the trial

    Recruitment rate of patients screened for the trial measured by percentage.

    Time frame: From date of randomization until 1 year after the randomization of last participant.

  2. Retention rate of the trial

    Retention rate of included patients in the trial measured by percentage.

    Time frame: From date of randomization until 1 year after the randomization of last participant

  3. Adherence rate of the trial

    Percentage of participants adherent to the dosing regimen of vitamin D in the trial.

    Time frame: From date of randomization until 1 year after the randomization of last participant.

  4. Incidence of adverse events

    Incidence of adverse events measured by number of events per patient-month

    Time frame: From date of randomization until 1 year after the randomization of last participant.

  5. Change in serum 25(OH)D level

    Change in serum 25(OH)D level between baseline and 12 months measured by ng/ml.

    Time frame: From date of randomization until 1 year after the randomization of last participant

Secondary outcomes

  1. Difference in risk of a subsequent peritonitis measured by Hazard Ratio.

    Risk of a subsequent peritoneal dialysis related peritonitis in the interventional group compared with the control group measured by Hazard Ratio.

    Time frame: From date of randomization until the date of subsequent peritonitis, assessed up to 1 year.

  2. Probability of participants who recovered after subsequent peritoneal dialysis related peritonitis.

    Probability of participants who recovered after peritoneal dialysis-related peritonitis measured by percentage.

    Time frame: From date of randomization until the date of documented death, assessed up to 1 year.

  3. Risk of participants who died because of subsequent peritoneal dialysis related peritonitis.

    Risk of participants who died because of peritoneal dialysis-related peritonitis measured by percentage.

    Time frame: From date of randomization until the date of documented death, assessed up to 1 year.

  4. Risk of participants who are transitioned to hemodialysis because of subsequent peritoneal dialysis related peritonitis.

    Risk of patients who are transferred to hemodialysis because of peritoneal dialysis related peritonitis measured by percentage.

    Time frame: From date of randomization until the date of documented transition to hemodialysis because of peritoneal dialysis related peritonitis, assessed up to 1 year.

07

Study locations

1 site
  • Peking University First Hospital
    Beijing, China
08

References and documents

Publications

  • Pi HC, Ren YP, Wang Q, Xu R, Dong J. Serum 25-Hydroxyvitamin D Level Could Predict the Risk for Peritoneal Dialysis-Associated Peritonitis. Perit Dial Int. 2015 Dec;35(7):729-35. doi: 10.3747/pdi.2014.00177. Epub 2015 Jul 29. PubMed 26224791 ↗
  • Armas LA, Andukuri R, Barger-Lux J, Heaney RP, Lund R. 25-Hydroxyvitamin D response to cholecalciferol supplementation in hemodialysis. Clin J Am Soc Nephrol. 2012 Sep;7(9):1428-34. doi: 10.2215/CJN.12761211. Epub 2012 Jul 12. PubMed 22798536 ↗
  • Zhang YH, Xu X, Pi HC, Yang ZK, Johnson DW, Dong J. The effects of oral vitamin D supplementation on the prevention of peritoneal dialysis-related peritonitis: study protocol for a randomized controlled clinical trial. Trials. 2019 Nov 28;20(1):657. doi: 10.1186/s13063-019-3784-7. PubMed 31779675 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2017 to primary completion in May 2021, 43 months.

Of 18 phase 2 interventional studies under Vitamin D Deficiency, half reached primary completion within 32 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 45. This study's 43 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2016
First posted
Aug 29, 2017
StartActual
Sep 30, 2017
Primary completionActual
May 28, 2021
CompletionActual
Jul 30, 2021
Last update
Aug 18, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 18, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03264625
Responsible party
Dong Jie (Director of PD center, Peking University First Hospital) — Principal investigator
First posted
Aug 29, 2017
Start date
Sep 30, 2017
Primary completion
May 28, 2021
Completion
Jul 30, 2021
Last update
Aug 18, 2021

Study contacts

Jie Dong
study director · Peking Universiy First Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Cholecalciferol

Start the discussion