CompletedPhase 1

Acute Effects of Canagliflozin, a Sodium Glucose Co-Transporter 2 (SGLT2) Inhibitor on Bone Metabolism in Healthy Volunteers

United States67 participantsStarted 2014-09-16

Plain-language summary

Background: \- Canagliflozin (sold as InvokanaTM) is a new medicine for diabetes. But it might increase the bone fracture risk in people with diabetes. Objective: \- To see if Invokana has negative side effects on bone health. Eligibility: \- Healthy men ages 18 45. Design: * Participants will be screened with a medical history, physical exam, and blood tests. A nutritionist will discuss their dietary history and the study dietary requirements. Participants will get a food diary to record what they eat and drink on 3 separate days. * Participants will have a DEXA scan x-ray test of bone health. Participants will lie still on a table while a small camera passes over the body. * Participants will have 2 stays in the clinic. They will be 1 week apart and each last 6 overnights starting on a Sunday. * Before each stay, participants will: * Pick up food each day for 7 days. They will get breakfast, lunch, dinner, and snacks. They must eat only the food provided during these times. * Collect their urine twice. * During the stays, participants will: * Be evaluated by a doctor and have blood drawn. * On each Monday, participants will: * Skip breakfast * At about 8 a.m. take a placebo pill in one stay, the study drug in the other stay. * Drink 6 ounces of water every 2 hours for 4 hours. * An intravenous (IV) catheter will be inserted into an arm. Blood will be drawn every 2 hours from 8 a.m. until noon. * Get lunch. * Have blood testing again at 8pm and midnight. * Repeat the testing days 2 5. * Have urine collected.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

* INCLUSION CRITERIA: We are targeting healthy men and women greater than or equal to 18 years old, inclusive of all races and ethnicity within a BMI of 20 30 kg/m(2). Specifically, we have defined healthy to mean: normal fasting glucose and hemoglobin A1c less than or equal to 6%, normal Hb, no glucosuria, normal renal function (based on normal serum creatinine + Cystatin C), urine albumin:creatinine ratio, protein:creatinine ratio, and GFR \> 80 as calculated by the CKD-Epi equation and normal lab urinalysis. EXCLUSION CRITERIA: If you have any of the following health issues, you cannot participate in the study: * Presence of heart disease, untreated high blood pressure (\>140/90 mm Hg), orthostatic hypotension or symptomatic hypotension, cancer, diabetes, recurrent symptomatic hypoglycemia and /or history of recurrent genital or urinary tract infection, thyroid disease, or any other condition that affects bone health * Past history of eating disorder or psychiatric disorders, including severe depression, anxiety, or psychosis or presently on treatment with medications for any of these conditions * Taking certain medications, especially those that affect bone metabolism (e.g., high dose vitamin D \[\>1000 units daily\] or calcium supplements \[\>800mg daily\], high dose vitamin A \[\>20,000 units daily\], phosphate binding antacids, calcitonin, calcitriol, growth hormone, or any anti-seizure medications for any reason including valproic acid, lamotrigine), certain medic…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

AUC of FGF23

Timeframe: First 24-72 hours

Trial details

NCT IDNCT02404870

SponsorNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Sponsor typeNIH

Study typeINTERVENTIONAL

Primary completion2019-05-01

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