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Assessment of plasma dexamethasone level after 1-mg dexamethasone suppression test in adults with obesity

Assessment of plasma dexamethasone level after 1-mg dexamethasone suppression test in adults with obesity

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
TCTR
Registry ID
TCTR20220223003
Enrollment
90
Registered
2022-02-23
Start date
2021-07-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

compared the plasma dexamethasone levels after 1-mg DST in healthy obese participants and in normal-weight participants. Plasma dexamethasone, Dexamethasone levels, 1-mg dexamethasone suppression test, Obesity

Interventions

Obese participants had a 1-mg dexamethasone administered orally at 11.00 p.m and then plasma dexamethasone level were obtained at 8.00-9.00 a.m. on the next day ,Non-obese participants had a 1-mg dexa
Experimental Drug,Experimental Drug
1 mg Dexamethasone,1 mg Dexamethasone

Sponsors

Ratchadapisek Research Funds
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: participants aged more than 18 years

Exclusion criteria

Exclusion criteria: -pregnancy, diabetes mellitus, known CS, psychiatric disease, chronic liver disease, chronic renal failure stage 3 to 5, nephrotic syndrome, malabsorption disease -Heavy alcohol drinking more than 30 gm/day -taking drugs that interfering CYP3A4 within 1 month or oral contraceptives within 6 weeks prior to the study

Design outcomes

Primary

MeasureTime frame
Compare plasma dexamethasone levels after 1-mg DST in obese participants and in normal-weight participants 12 mo LC-MS/MS

Secondary

MeasureTime frame
Association of Sex, BMI, BSA and dexamethasone level 12 mo LC-MS/MS,proportion of participants achieving the plasma dexamethasone levels more than 3.3 nmol/L among the BMI groups 12 mo LC-MS/MS

Countries

Thailand

Contacts

Public ContactPimonrat Paopongpaiboon

Chulalongkorn University

Phaopongpaiboon@hotmail.com0818717077

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026