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Vitamin D Analog

d6-25-hydroxyvitamin D3 for Cystic Fibrosis (CF Trial)

Phase 1
Waitlist Available
Led By Ian de Boer, MD, MS
Research Sponsored by University of Washington
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 8 weeks
Awards & highlights

CF Trial Summary

This trial is looking at how well vitamin D is metabolized in people with CF compared to people without CF.

Eligible Conditions
  • Cystic Fibrosis

CF Trial Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~8 weeks
This trial's timeline: 3 weeks for screening, Varies for treatment, and 8 weeks for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Metabolic Clearance of D6-25(OH)D3
Secondary outcome measures
AUC of D6-25(OH)D3
Terminal Half-life of D6-25(OH)D3
Volume of Distribution of D6-25(OH)D3
Other outcome measures
Metabolic Formation Clearance of D6-25(OH)D3 Metabolites
Serum Concentration of ALT
Serum Concentration of AST
+2 more

Side effects data

From 2023 Phase 1 trial • 10 Patients • NCT03104855
40%
Pain or sensation in arm during infusion
100%
80%
60%
40%
20%
0%
Study treatment Arm
CF Group
Healthy Controls

CF Trial Design

1Treatment groups
Experimental Treatment
Group I: Single pharmacokinetics armExperimental Treatment1 Intervention
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
d6-25-hydroxyvitamin D3
2017
Completed Phase 1
~10

Find a Location

Logistics

Participation is compensated

You will be compensated for participating in this trial.

Who is running the clinical trial?

University of WashingtonLead Sponsor
1,740 Previous Clinical Trials
1,847,928 Total Patients Enrolled
24 Trials studying Cystic Fibrosis
45,857 Patients Enrolled for Cystic Fibrosis
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)NIH
2,358 Previous Clinical Trials
4,315,064 Total Patients Enrolled
26 Trials studying Cystic Fibrosis
14,387 Patients Enrolled for Cystic Fibrosis
Ian de Boer, MD, MSPrincipal InvestigatorUniversity of Washington
3 Previous Clinical Trials
167 Total Patients Enrolled

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.
Recent research and studies
clinicaltrials.govStudy
Clearance of 25-hydroxyvitamin D in Cystic Fibrosis
Ian deBoer 2017. "Clearance of 25-hydroxyvitamin D in Cystic Fibrosis". ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT03104855.
~1 spots leftby Apr 2025
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