Samsca Post-marketing General Drug Use-results Survey in Patients with Hyponatremia in SIADH

Recruiting

• Conditions: Antidiuretic Hormone, Inappropriate Secretion

• Registration Number: NCT04790175
• Lead Sponsor: Otsuka Pharmaceutical Co., Ltd.

Brief Summary

The purpose of this study is to confirm the safety of tolvaptan in patients with hyponatremia in syndrome of inappropriate antidiuretic hormone secretion (SIADH) in Japan

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-02-25
• Study First Submitted QC: 2021-03-07
• Study First Posted: 2021-03-10
• Study Start: 2021-03-29
• Status Verified: 2025-03
• Last Update Submitted: 2025-03-19
• Last Update Posted: 2025-03-24
• Primary Completion: 2028-08
• Study Completion: 2030-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 300

Inclusion Criteria

• Subjects with a definite diagnosis of SIADH in reference to "Diagnostic and Treatment Manual of the Hypersecretion of Vasopressin (SIADH), Revised in 2018"

Exclusion Criteria

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Safety Information (Number of off-Label Use)	90 days from the initiation of tolvaptan treatment	Collecting any type of off-Label Use that refers to situations where a product is intentionally used for a medical purpose not in accordance with the authorized product information. Off-label use also includes the intentional use in non-authorized population categories not indicated in the label.
Safety Information (Adverse Event)	90 days from the initiation of tolvaptan treatment	Any untoward medicinal occurrence in a patient or clinical study subject administered a Medicinal Product and which does not necessarily have a causal relationship with this treatment (ICH-E2A Guideline).; An Adverse Event can therefore be any unfavorable and unintended sign (e.g. abnormal laboratory finding), symptom, or disease temporally associated with the use of a Medicinal Product (Samsca), whether or not it is considered causally related to the Medicinal Product.
Safety Information (Special Situations)	90 days from the initiation of tolvaptan treatment	Situations related to the use of an Otsuka product which may or may not be associated with an adverse event: * Maternal (pregnancy and breastfeeding) or paternal (via semen) exposure; * Exposure during breastfeeding; * Overdose/Incorrect dosage, misuse, abuse (e.g. patient sharing products); * Medication errors (e.g. patient took wrong dose); * Lack of therapeutic efficacy (e.g. the product doesn't work); * Occupational exposure (e.g.: nurse administering the product is exposed); * Cases of suspected transmission of infectious agents; * Use of suspected or confirmed falsified product(s) or quality defect of the product(s); * Withdrawal reactions; * Accidental exposure (e.g.: child takes parent's product); * Drug-drug/drug-food interactions; * Unintentional use of product in a non-approved population (e.g.: pediatric or geriatric population); * Disease progression/exacerbation of existing disease
Safety Information (Serious Adverse Event)	90 days from the initiation of tolvaptan treatment	Any adverse drug experience/event occurring at any dose which; * results in death; * is life-threatening; * requires inpatient hospitalization or prolonged of existing hospitalization; * results in persistent or significant disability or incapacity; * is a congenital anomaly/birth defect; * is medically significant.
Safety Information (Non-serious Adverse Events)	90 days from the initiation of tolvaptan treatment	All Adverse Events that do not meet the definition of a serious Adverse Event are considered non-serious Adverse Events.

Trial Locations

Locations (1)

Pharmacovigilance Department; 🇯🇵 Osaka, Japan