ClinicalTrials.gg
CompletedNCT02996812Updated Dec 4, 2024

Evaluation of Single Ascending Doses of Subcutaneous Exendin 9-39 in Patients With Post-Bariatric Hypoglycemia

A Phase 1 interventional study of Exendin (9-39) in Hyperinsulinemia Hypoglycemia, sponsored by Tracey McLaughlin. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-12-04.

Sponsored by Tracey McLaughlin · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 8 months after the study started (first participant enrolled Apr 2015, registered Dec 2016).
Phase
Phase 1
Study type
Interventional
Enrollment
9
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 24 studies in Congenital Hyperinsulinism with a site in United States — 3 open to participants now, 6 under way, 1 of them phase 3. Congenital Hyperinsulinism · United States.

Enrollment
17th of 20
9 · median 16
Started
2015
with 1 other
Phase 1
4 of 24
1 open now
Registered
14th of 24
by date

Among the 24 studies in Congenital Hyperinsulinism with a site in United States, this one is the 17th largest by enrollment of the 20 interventional ones, is one of 2 that started in 2015, is one of 4 in phase 1, and was the 14th registered.

By phase

24 studies; the count open now beside each. This study's row is marked.

Phase 28 · 1 open
Phase 1this study4 · 1 open
Other kind3 · 1 open
Phase 1/23 · 0 open
Phase 33 · 0 open
No phase1 · 0 open
Observational1 · 0 open
Phase 2/31 · 0 open

By the year they started

First in 2004; this study’s year is marked. 2 started in 2015.

Size and results

Median enrollment 16 across the 20 interventional studies, 30,000 across the 1 observational. Of the 16 that completed or were terminated, 9 (56%) have results posted.

Was this useful?
Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 24 studies in Congenital Hyperinsulinism with a site in United States, or all of them as a file.
02

Study summary

This study is designed to evaluate the safety, efficacy, and pharmacokinetic profile of single ascending doses of exendin 9-39 administered by subcutaneous route in subjects with post-bariatric hypoglycemia.

Read the detailed description

Post-Bariatric Hypoglycemia (PBH) is a debilitating rare disease afflicting 0.2-6.9% of post-bariatric patients, characterized by repeated severe hypoglycemic episodes with neuroglycopenic symptoms and marked disability. There are no effective medical therapies.

While the cause is not known, exaggerated postprandial secretion of glucagon-like peptide-1 (GLP-1) as a result of altered nutrient transit likely plays a major role. GLP-1 is an incretin hormone secreted primarily by the distal ileum that contributes to postprandial glucose regulation. Exendin 9-39 (Ex9) is a specific GLP-1 receptor antagonist, that when given via continuous IV infusion, has been shown to effectively prevent postprandial hypoglycemia in patients with PBH. Subcutaneous (SC) injection of Ex9 may represent a safe, effective and practical therapeutic approach to treating PBH.

03

Conditions studied

  • Hyperinsulinemia Hypoglycemia

Keywords

  • Post-bariatric hypoglycemia
  • Non-insulinoma pancreatogenous hypoglycemia syndrome
  • Late dumping syndrome
04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Post-bariatric surgery more than 6 months prior to signing the
  • Reported history of Whipple's triad: the occurrence of hypoglycemic symptoms associated with blood glucose of ≤55 mg/dL, and resolution with glucose or carbohydrate administration.
  • Symptomatic hypoglycemia during the baseline/screening OGTT, as defined by the presence of plasma glucose ≤55 mg/dL with concomitant autonomic and/or neuroglycopenic symptoms.

Exclusion criteria

Exclusion Criteria:

  • Patients currently using sulfonylureas or other medications that may interfere with glucose metabolism within 5 half-lives of drug.
  • Participation in any clinical investigation within 4 weeks prior to dosing
  • History of or current insulinoma
  • Active infection or significant acute illness within 2 weeks prior to dosing
  • Female patients who are pregnant or lactating
  • Women of and not utilizing effective methods
  • Inadequate end organ function
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Double (Participant, Care provider)
Enrollment
9 participants (actual)

Study arms

  • Active comparator
    Dose A

    Subcutaneous injection of Dose A of Exendin (9-39)

    Drug: Exendin (9-39)

  • Active comparator
    Dose B

    Subcutaneous injection of Dose B of Exendin (9-39)

    Drug: Exendin (9-39)

  • Active comparator
    Dose C

    Subcutaneous injection of Dose C of Exendin (9-39)

    Drug: Exendin (9-39)

  • Active comparator
    Dose D

    Subcutaneous injection of Dose D of Exendin (9-39)

    Drug: Exendin (9-39)

Interventions

06

What researchers measure

Primary outcomes

  1. Treatment effect on plasma glucose

    Magnitude of plasma glucose nadir during repeat OGTT after treatment

    Time frame: 0-180 minutes following initiation of oral glucose tolerance test (OGTT) conducted after treatment.

Secondary outcomes

  1. Treatment effect on symptoms of hypoglycemia

    Response rate in symptom score during repeat OGTT after treatment.

    Time frame: 0-180 minutes following initiation of OGTT

07

Study locations

1 site
  • Stanford University School of Medicine
    Stanford, California 94305, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Apr 2015 to primary completion in Aug 2016, 16 months.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 15, 2016
First posted
Dec 19, 2016
StartActual
Apr 2015
Primary completionActual
Aug 2016
CompletionActual
Aug 2016
Last update
Dec 4, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 4, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02996812
Lead sponsor
Tracey McLaughlin
Responsible party
Tracey McLaughlin (Associate Professor of Medicine (Endocrinology), Stanford University) — Sponsor-investigator
First posted
Dec 19, 2016
Start date
Apr 2015
Primary completion
Aug 2016
Completion
Aug 2016
Last update
Dec 4, 2024

Study contacts

Tracey McLaughlin, MD
principal investigator · Stanford University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Avexitide

Start the discussion