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RecruitingNCT06045351Updated Feb 18, 2025

Efficacy of Injectable Vitamin D Supplementation in Females With Polycystic Ovary Syndrome

A Phase 1 interventional study of Vitamin D and Active Comparator in Anovulatory Infertility, sponsored by Aga Khan University. Recruiting at 1 site in Pakistan. Open to female participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-18.

Sponsored by Aga Khan University · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2026, 3 months ago, but the record still lists the study as recruiting.
  • Started Jan 2024; still recruiting 2 years 9 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
142
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

Poly cystic Ovarian Syndrome (PCOS) is an endocrine disorder of reproductive age defined by "the presence of any two out of three criteria: oligo and/or anovulation, excess androgen activity and/or polycystic ovarian morphology on ultrasound". Considering role of vitamin D (VD) (3, 4) and high prevalence (58%) of deficiency in PCOS of Pakistan. Researchers hypothesized that its correction would improve response to standard PCOS treatment. The objective is to compare PCOS parameters in intervention group (Group A) receiving VD supplementation and then PCOS care with control group (Group B) receiving standard PCOS care and then VD supplementation. A randomized open label trial: delayed-start design will be conducted on VD deficient PCOS females VD \< 20ng/ml ; Group A will receive VD injections 600,000 I.U I/M once with 1 gram calcium supplement daily in the initial 12 weeks. After that standard PCOS care; i) Glucophage XR 750 mg (once for 15 days then twice daily) ii) progesterone supplementation (1 capsule Progeffik 100 mg every 3 weeks, then 1 week off) and iii) calcium supplements will be given for next 12 weeks. PCOS females in Group B will receive standard PCOS care (same) with addition of VD and calcium supplementation after 12 weeks till study end point. Study outcomes will be comparison of i) hyperandrogenism by Free Androgen Index [Total Testosterone, Steroid Hormone Binding Globulin ii) insulin Resistance by HOMA-IR (serum Insulin, Fasting Blood Glucose) and iii) oxidative stress by Total Antioxidant Capacity after 24-weeks in these Groups'd levels after supplementation will be assessed for confirmation of correction and calcium and albumin levels for detection of hypercalcemia. Results of this study will inform the clinicians to add VD before or after the standard PCOS care for rectification of endocrine and metabolic derangements as a cost-effective treatment and prevention strategy in these females.

Read the detailed description

This study will comprise of two groups (A and B) with 71 participants in each group carried for a duration of 24 weeks.

Intervention Details for Group A (Duration 1-12 weeks):

Participants will be given Vitamin D (VD) supplementation at a dose of 600,000 IU along with Calcium 1000 mg/day.

Mid-Point (At 12 weeks):

Patients will have a consultation for clinical interpretation. They will undergo biochemical assessment, including the estimation of Insulin Resistance, Free Androgen Index, and Total Antioxidant Capacity.

After 12 weeks They will receive standard treatment for Polycystic Ovary Syndrome (PCOS), which includes Glucophage XR 750 mg once at dinner for 15 days, then twice daily. Capsule Progeffik 100 mg once at night every 3 weeks, then 1 week off and Calcium 1000 mg/day

Intervention Details for Group B (Duration 1-12 weeks):

Participants in Group B will receive standard PCOS treatment mentioned earlier:

Glucophage XR 750 mg once at dinner for 15 days, then twice daily. Capsule Progeffik 100 mg once at night every 3 weeks, then 1 week off. Additionally, they receive Calcium 1000 mg/day.

Mid-Point (At 12 weeks):

Patients will have a consultation for clinical interpretation. They will undergo biochemical assessment, including the estimation of Insulin Resistance, Free Androgen Index, and Total Antioxidant Capacity.

Intervention Details for Group A (After 12 weeks)

They will receive VD supplementation (600,000 IU) during this time and continue to receive Calcium 1000 mg/day.

Calculations of HOMA-IR and Free Androgen Index will be done at 12 and 24 weeks and the results will be compared.

{HOMA-IR: HOMA- IR index, a commonly used marker of IR, will be calculated using the formula: HOMA-IR = fasting glucose levels [mmol/L] × fasting insulin levels [μU/mL]/22.5 Free Androgen Index will be derived from TT and SHBG, normally measured in nanomoles per liter. FAI =100 (TT /SHBG)}

02

Conditions studied

  • Anovulatory Infertility

Keywords

  • Poly cystic Ovarian Syndrome
  • randomized open label trial; delayed-start design
  • vitamin D
  • Pakistan
03

In context

Polycystic Ovary Syndrome

944 studies on the registry are indexed under Polycystic Ovary Syndrome; 175 are open to participants now.

This study's planned enrollment of 142 is above the median of 70 across 685 interventional studies indexed under Polycystic Ovary Syndrome.

Browse Polycystic Ovary Syndrome studies →

Lead sponsor

Aga Khan University is the lead sponsor of 290 studies on the registry; 44 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Recently diagnosed PCOS with presence of at least 2 of these 3 elements: clinical or biochemical signs of hyperandrogenism, chronic anovulation and polycystic ovaries (1) (from reports of available routine TVS), with VDD serum levels VD \<20 ng/ml(10), age range 18- 45 years, from all ethnic background will be included.

Exclusion criteria

Exclusion Criteria:

  • : Exclusion of subjects will be done by the Co-Principal Investigators (Co-PI) after history, examination and complete evaluation in the respective clinics. All female subjects meeting any of the following criteria will be excluded from the study

    • Pregnancy
    • Hypercalcemia (plasma calcium concentrations> 2.65 mmol/L)
    • Tuberculosis or other granulomatous disorders
    • Chronic liver disease or alanine transaminase (ALT) level 3 times higher than the normal limit, chronic
    • Kidney disease or serum creatinine >2.0 mg/dL,
    • Drug Therapies: VD replacement ; participants who had received VD injection in the last 3 months prior to recruitment in the study, oral contraceptives, hormonal replacement therapy, glucocorticoids, calcium supplementation, insulin-sensitizing drugs (incretin mimetic drugs, thiazolidinedione, sulfonylurea), lipid-lowering drugs or other drugs affecting insulin sensitivity or serum androgens (e.g., niacin, corticosteroids, beta-blockers, calcium channel blockers, thiazide diuretics), anti-epileptics, anti-retroviral, cholestyramine, anti-fungal, statins, H2 blockers, immunosuppressant, chemotherapeutic agents, antimicrobials (Rifampicin, Isoniazid, Hydroxychloroquine) or any other drug modifying lipid metabolism in the previous 3 months prior to study
    • Suffering from congenital adrenal hyperplasia, Cushing's syndrome, androgen-secreting tumors, type 2 Diabetes Mellitus, renal, hepatic or thyroid disorders, hyperparathyroidism, malabsorption syndromes, Chronic Kidney Disease, Hepatic failure, cystic fibrosis, vaginal bleeding of unknown etiology or /and suffering from COVID-19 (within 3 months).
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
142 participants (estimated)

Study arms

  • Experimental
    VD supplementation

    Experimental Group (Group A; n=71): The intervention (experimental) group will receive VD injections 600,000 I.U I/M once with 1 gram calcium supplemental daily in the initial 12 weeks. After that standard PCOS care; i) Glucophage XR 750 mg (once for 15 days then twice daily) ii) progesterone supplementation (1 capsule Progeffik 100 mg every 3 weeks, then 1 week off) and iii) calcium supplements will be given for next 12 weeks.

    Drug: Vitamin D

  • Active comparator
    Control

    Control Group (Group B; n=71): Participants will receive standard PCOS treatment; Glucophage XR 750 mg once at dinner for 15 days then twice daily and Capsule Progeffik 100 mg once at night every 3 weeks, then 1 week off for initial-- 12 weeks. Then VD supplementation (600,000 IUI/M) will be given once during the study period with Calcium 1000 mg/day and continued Standard PCOS treatment from 12- 24 weeks

    Other: Active Comparator

Interventions

  • DrugVitamin D

    Intervention Group Initial 12 weeks; * VD supplementation (600,000 IU I/M) once during the study period * Elemental calcium 1000 mg/day From 12-24 weeks: Standard PCOS; * Glucophage XR 750 mg once at dinner for 15 days then twice daily * Capsule Progeffik 100 mg once at night every 3 weeks, then 1 week off * Calcium 1000 mg/day

    Also known as: Experimental, Group A

  • OtherActive Comparator

    Active Comparator (Group B; n=71): Initial-- 12 weeks; * Standard PCOS; * Glucophage XR 750 mg once at dinner for 15 days then twice daily * Capsule Progeffik 100 mg once at night every 3 weeks, then 1 week off From 12- 24 weeks * VD supplementation (600,000 IUI/M) once during the study period * Calcium 1000 mg/day * Standard PCOS Continued

    Also known as: Group B

06

What researchers measure

Primary outcomes

  1. hyperandrogenism

    hyperandrogenism by Free Androgen Index \[Total Testosterone, Steroid Hormone Binding Globulin

    Time frame: 24 weeks

  2. insulin Resistance

    HOMA-IR (serum Insulin, Fasting Blood Glucose)

    Time frame: 24 weeks

  3. oxidative stress

    Total Antioxidant Capacity

    Time frame: 24 weeks

07

Study locations

1 of 1 sites recruiting
  • Aga Khan University Hospital
    Karachi, Sindh 75500, Pakistan
    Recruiting
08

References and documents

Study documents

  • Study protocol · Dec 7, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06045351
Lead sponsor
Aga Khan University
Collaborators
Pakistan Science Foundation
Responsible party
Rehana Rehman (Professor, Aga Khan University) — Principal investigator
First posted
Sep 21, 2023
Start date
Jan 1, 2024
Primary completion
Jun 30, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Feb 18, 2025

Study contacts

Rehana Rehman, PhD
Contact
drrehana7@gmail.com
00922134864460 ext. 4460
Rehana Rehman, PhD
principal investigator · Aga Khan University

Oversight

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

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