Completed OBSERVATIONAL NCT04267965

Pulmonary Function, Voice and Swallowing Symptoms After Parathyroidectomy

Changes of Pulmonary Function, Voice and Swallowing Symptoms After Total Parathyroidectomy for Secondary Hyperparathyroidism in the Presence of Intact Recurrent Laryngeal Nerve

Sponsor: Chang Gung Memorial Hospital

Conditions Secondary Hyperparathyroidism Due to Renal Causes

Interventions parathyroidectomy plus bilateral thymectomy and autotransplantation

Updated 5 times since 2020 Last updated: Feb 11, 2020 Started: Aug 1, 2017 Primary completion: Jul 31, 2019 Completion: Jul 31, 2019

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 Secondary Hyperparathyroidism Due to Renal Causes and is currently completed. Chang Gung Memorial Hospital leads this study, which shows 5 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

5 versions recorded

Sep 2025 — Present [monthly]

Completed
Sep 2024 — Sep 2025 [monthly]

Completed
Jul 2024 — Sep 2024 [monthly]

Completed
Jan 2021 — Jul 2024 [monthly]

Completed
Mar 2020 — Jan 2021 [monthly]

Completed

First recorded

Aug 2017

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Chang Gung Memorial Hospital

Data source: Chang Gung Memorial Hospital

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

Study Locations

• Kaohsiung City, Taiwan