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The effect of vitamin D on severity of primary dysmenorrhea and amount of menstrual bleeding

The effect of vitamin D on severity of primary dysmenorrhea and amount of menstrual bleeding compared with placebo in students living in dormitories of Tehran University of Medical Sciences: Randomized, Double-blind, clinical trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT201305212324N9
Enrollment
Unknown
Registered
2014-01-18
Start date
2013-09-23
Completion date
Unknown
Last updated
2018-02-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

primary dysmenorrhea. primary dysmenorrhea

Interventions

Intervention 1: Contorol group will be received oral tablet of placebo, 2 tablets every 8 hours, 5 days before the putative beginning of their next menstrual cycle. Intervention 2: Case group will be
Placebo
Treatment - Drugs
Contorol group will be received oral tablet of placebo, 2 tablets every 8 hours, 5 days before the putative beginning of their next menstrual cycle.
Case group will be received oral tablet of cholecalciferol (50000 IU of cholecalciferol), 2 tablets every 8 hours, 5 days before the putative beginning of their next menstrual cycle.

Sponsors

Vice chancellor for research, Tehran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 25 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: Healthy, iranian and single female students aged 18 to 25 years? With normal menstrual cycles (cycles lasted 21 to 35 days, mensturation lasting 3 to 7 days)? Experienced at least 4 consecutive painful periods in the past 6 months with the pain starting a few hours before or just after the onset of bleeding? No history of underlying disease cause of secondary dysmenorrhea sush as: endometriosis and adenomyosis,etc? Don’t do any regular exercise? Lack of stressful experiences within 3 months prior? Don’t use of oral contraceptives and hormonal drugs within 3 months prior? Taking no medications including calcium and vitamin D within 6 months prior? 25(OH)D serum level = 30 ng/ml and normal serum calcium? Having no unusual diets (vegetarian diets, special diet)? Don’t use of medicines that interact with vitamin D such as: hydantoin and barbiturates,etc? BMI = 30? No smoking and alcohol consumption. Exclusion criteria: Lack of menstruation? Married during the study? Use of medications including calcium and vitamin D during the study? Use of oral contraceptives and hormonal drugs during the study ?Use of non-pharmacological methods of pain relief ?Intense psychological stress during the study? Start exercise during the study ?Don’t use of supplement or interventions intended ?Occurring gastrointestinal disorders after the consumption of supplement (Including vomiting 2 hours after the consumption of supplement ?(Unwillingness to continue research.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Pain score of primary dysmenorrhea. Timepoint: Before intervention, the first cycle after intervention, the Second cycle after intervention. Method of measurement: visual analog scale (VAS).;Amount of menstrual bleeding. Timepoint: Before intervention, the first cycle after intervention, the Second cycle after intervention. Method of measurement: Pictorial blood loss assessment chart.;Severity of primary dysmenorrhea. Timepoint: Before intervention, the first cycle after intervention, the Second cycle after intervention. Method of measurement: Verbal multidimensional scoring system (VMS).

Secondary

MeasureTime frame
Use of NSAIDs. Timepoint: Before intervention, the first cycle after intervention, the Second cycle after intervention. Method of measurement: Record sheet of NSAID use.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactElham Ghorbali

School of Nursing and Midwifery, Tehran University of Medical Sciences

elhamghorbali@yahoo.com; elhamghorbali@gmail.com+98 21 6105 4219

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026