An interventional study of Ergocalciferol Capsules and Placebo in Hypovitaminosis D, sponsored by Mahidol University. Status unknown. Open to female participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-04-02.
Sponsored by Mahidol University · Not applicable, Interventional, and Treatment
Among 38 studies testing ergocalciferols in Vitamin D Deficiency — 1 open to participants now, 1 under way, none of them phase 3. Ergocalciferols · Vitamin D Deficiency.
Among the 38 studies testing ergocalciferols in Vitamin D Deficiency, this one is the 27th largest by planned enrollment, is one of 2 that started in 2021, is one of 21 with no phase, and was the 35th registered.
801 studies on the registry are indexed under Vitamin D Deficiency; 60 are open to participants now.
Browse Vitamin D Deficiency studies →1 of the 38 studies testing ergocalciferols in Vitamin D Deficiency is open now. Recruiting first, the newest first:
Ain Shams University
Ages 5–10 · Healthy volunteers
Ergocalciferols: first FDA approval 1941 (DRISDOL). What it is approved for, and how studies give it, is on its page →
Of the 37 Vitamin D Deficiency studies recruiting now, 16 (43%) set no upper age limit and 18 (49%) stop at 75 or younger; 10 take children under 18; 11 take healthy volunteers.
This study: 18 Years to 30 Years · female · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
38 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 4 · Phase 2 2 · Phase 3 1 · Phase 4 12
First in 2004; this study’s year is marked. 2 started in 2021.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 36 is below the median of 78 across 590 interventional studies indexed under Vitamin D Deficiency.
Median enrollment 64 across the 38 interventional studies. Of the 29 that completed or were terminated, 9 (31%) have results posted.
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None of the 38 has an industry lead sponsor. The 10 most frequent:
Mahidol University is the lead sponsor of 747 studies on the registry; 119 are open to participants now.
Mahidol University has 3 studies filed under Vitamin D Deficiency — fewer than ten, so there is no comparison to draw.
None of the studies under way reaches primary completion within a year.
Among the 38 studies testing ergocalciferols in Vitamin D Deficiency, from their registry updates:
Nothing recorded among them since 2026-09-25.
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The purpose of this study is to evaluate the effect of vitamin D supplementation on the pain score of primary dysmenorrhea. Our hypothesis is that by normalizing vitamin D level could help improve pain score of women who have primary dysmenorrhea.
This study is aimed to be conducted in randomised controlled trial, comparing between intervention group and placebo group. We include women with primary dysmenorrhea who also have low vitamin D level in this trial. Our primary outcome is to compare visual analog pain scale between intervention and placebo group after treatment. After randomised and allocated, these women will be given vitamin D 50,000 IU or placebo capsules orally weekly for 8 consecutive weeks. We monitor pain score daily from the cycle before the drugs started until complete 8-week course of the regimen mentioned. Also vitamin D levels will be monitored twice, one before treatment and the other after treatment.
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.
Exclusion Criteria:
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.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Vitamin D 50,000 IU orally weekly for 8 weeks
Drug: Ergocalciferol Capsules
Placebo capsules orally weekly for 8 weeks
Drug: Placebo
Given to subjects 50,000 IU per week for 8 weeks
Also known as: Vitamin D2
Placebo capsules
Visual analog pain scale
Pain score between intervention and placebo group after treatment
Time frame: 8 weeks
No study locations are listed for this record.
Plan to share: No
No publications or documents are linked to this record.
Start is estimated for May 2021; primary completion for Apr 2023, 23 months later.
Of 168 non-industry interventional studies with no phase under Vitamin D Deficiency, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 4 and three quarters within 29. This study's planned 23 months is above that.
Counting every sponsor, half of 170 studies reached it within 11 months; a quarter within 4 and three quarters within 29.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in Mar 2021. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Ergocalciferols