Unknown OBSERVATIONAL NCT04412421

Supplementation After Bariatric Surgery

Adherence to Vitamin and Mineral Supplementation After Bariatric Surgery

Sponsor: Region Östergötland

Conditions Bariatric Surgery Micronutrient Deficiencies Obesity

Interventions Gastric Bypass, Sleeve Gastrectomy

Updated 6 times since 2020 Last updated: Jun 1, 2020 Started: May 3, 2017 Primary completion: Jul 1, 2020 Completion: Jul 1, 2023

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This observational or N/A phase trial investigates Bariatric Surgery and Micronutrient Deficiencies and is currently ongoing. Region Östergötland leads this study, which shows 6 recorded versions since 2017 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

6 versions recorded

Sep 2025 — Present [monthly]

Unknown
Sep 2024 — Sep 2025 [monthly]

Unknown
Jul 2024 — Sep 2024 [monthly]

Unknown

Status: Unknown Status → Unknown
Aug 2023 — Jul 2024 [monthly]

Unknown Status

Status: Active Not Recruiting → Unknown Status
Jan 2021 — Aug 2023 [monthly]

Active Not Recruiting

▶ Show 1 earlier version

Jul 2020 — Jan 2021 [monthly]

Active Not Recruiting

First recorded

May 2017

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Region Östergötland

Data source: Region Östergötland

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Norrköping, Sweden