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The effect of Roux-en-Y Gastric Bypass surgery in morbidly obese patients on pharmacokinetic of lansoprazole

The effect of Roux-en-Y Gastric Bypass surgery in morbidly obese patients on pharmacokinetic of lansoprazole

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20220118001
Enrollment
16
Registered
2022-01-18
Start date
2021-11-01
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

Morbidly Obesity Roux-en-y Gastric bypass, Lansoprazole, Pharmacokinetics

Interventions

30mg twice daily starting at 2 weeks before surgery and continue the drug for 6 weeks after surgery
Experimental Drug
Lansoprazole

Sponsors

Ratchadapisek Sompoch Endowment Fund Chulalongkorn university
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: The target population is obese patients admitted to Chulalongkorn Hospital which have indications for surgery according to National Institute of Health (NIH) guidelines that are BMI> 40 kg / m2 or BMI> 35 kg / m2 and also have associated diseases such as diabetes, hypertension, coronary heart disease, sleep apnea, age over 18 years old and associated with peptic ulcers.

Exclusion criteria

Exclusion criteria: Patients with exclusion criteria are patients who had previously undergone bariatric surgery, unable to swallow drugs, taking statins for the dyslipidemia treatment, and in patients who is allergic to lansoprazole and or taking drug interacted with lansoprazole: Acalabrutinib, Atazanavir, Cilostazol, Citalopram, Dacomitinib, Dasatinib, Erlotinib, Methotrexate, Nelfinavir, Neratinib, Pazopanib, Pexidartinib, Rilpivirine, Tacrolimus

Design outcomes

Primary

MeasureTime frame
Pharmacokinetic of Lansoprazole 1 day before and 6 weeks after the surgery AUC of concentration of Lansoprazole in plasma, half-life, Cmax, Tmax

Secondary

MeasureTime frame
The difference of CYP polymorphism 1 day before surgery Type of CYP

Countries

Thailand

Contacts

Public ContactSuthep Udomsawaengsup

Chulalongkorn hospital

suthep.u@gmail.com0846777777

Outcome results

None listed

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