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CompletedNCT01339169Updated Aug 19, 2019

YF476 and Type I Gastric Carcinoids

A Phase 2 interventional study of YF476 in Chronic Atrophic Gastritis, Hypergastrinaemia and Type I Gastric Carcinoids, sponsored by Trio Medicines Ltd.. Completed at 1 site in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-08-19.

Sponsored by Trio Medicines Ltd. · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Jan 2011, registered Apr 2011).
Phase
Phase 2
Study type
Interventional
Enrollment
8
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The aim of the study is to find out if the experimental medicine, YF476, can make gastric carcinoids, a rare type of stomach tumour, shrink and disappear. Gastric carcinoids occur mainly in patients with chronic atrophic gastritis (CAG), a condition in which the acid-producing cells in the lining of the stomach can't make acid. Acid production is controlled by gastrin, a hormone (chemical messenger) that's released into the bloodstream. If the stomach can't make acid, blood levels of gastrin rise. High blood levels of gastrin in patients with CAG can cause other cells (ECL cells) in the lining of the stomach to grow and, over the years, to give rise to gastric carcinoids. Gastric carcinoids are usually benign, but they can become malignant. Therefore, patients with CAG and gastric carcinoids have the inside of their stomach checked regularly, by gastroscopy, to see if the gastric carcinoids need removing surgically. A gastroscope is a thin (1 cm), flexible tube at end of which is a mini video camera, which enables the user to inspect the lining of the stomach and a 'snare' to take samples of tissue (biopsies). YF476 (netazepide) is a gastrin receptor antagonist (blocks the effects of gastrin), so it's a potential new medical treatment for gastric carcinoids in patients with CAG. Up to 10 of these patients will take YF476 daily for up to 12 weeks. If they benefit from that treatment, they may take YF476 daily for up to another 52 weeks. They'll make several outpatient visits for tests, including checks on the safety of YF476. At some of the visits, they'll have a gastroscopy. At each gastroscopy, the gastric carcinoids will be measured and biopsies taken for laboratory tests.

02

Conditions studied

  • Chronic Atrophic Gastritis
  • Hypergastrinaemia
  • Type I Gastric Carcinoids

Keywords

  • YF476
  • Hypergastrinaemia
  • netazepide
  • gastric carcinoids
03

In context

Carcinoid Tumor

152 studies on the registry are indexed under Carcinoid Tumor; 16 are open to participants now.

This study's enrollment of 8 is below the median of 36 across 106 interventional studies indexed under Carcinoid Tumor.

Browse Carcinoid Tumor studies →

Lead sponsor

Trio Medicines Ltd. is the lead sponsor of 14 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients known to have gastric carcinoids associated with chronic atrophic gastritis and hypergastrinaemia, and who attend the outpatient clinic of the investigator;
  • Men, postmenopausal women, premenopausal women who have been sterilised by tubal ligation, hysterectomy or bilateral oophrectomy, or premenopausal women using reliable contraception: condom and spermicide or intrauterine device;
  • Adults ≥ 18 years;
  • Good general health; and
  • Able to give fully-informed, written consent.

Exclusion criteria

Exclusion Criteria:

  • Women who are pregnant, lactating or using a steroid contraceptive;
  • History of gastric surgery, apart from surgery for gastric carcinoids;
  • Evidence of Zollinger-Ellison syndrome;
  • Prolonged QTc interval (>450 msec);
  • Certain medicines and herbal remedies taken during the 7 days before visit 1;
  • Previous treatment with somatostatin; or
  • Participation in other clinical trials of unlicensed medicines within the previous 3 months.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
8 participants (actual)

Study arms

  • Experimental
    YF476 treatment

    Drug: YF476

Interventions

  • DrugYF476

    50 mg once daily for 12 weeks, with the option to increase to 75 mg or 100 mg once daily after 6 weeks, or decrease to 25 mg once daily, depending on response. After that, patients that have benefited from treatment may take 50 mg YF476 once daily for an additional up to 52 weeks.

    Also known as: netazepide

06

What researchers measure

Primary outcomes

  1. Visual assessment of the number of gastric carcinoids.

    Time frame: 2 years

  2. Visual assessment of the size of gastric carcinoids.

    Time frame: 2 Years

  3. Visual assessment of the distribution of gastric carcinoids.

    Time frame: 2 years

Secondary outcomes

  1. Safety and tolerability of YF476, as judged by medical examinations, vital signs, ECG, safety tests of blood and urine, and adverse events.

    Time frame: 2 years

  2. Histologic grading of biopsies.

    Time frame: 2 years

  3. Plasma concentrations of YF476.

    Time frame: 2 years

  4. Plasma or serum concentrations of biomarkers such as gastrin or chromogranin A (CgA).

    Time frame: 2 years

07

Study locations

1 site
  • Royal Liverpool University Hospital
    Liverpool, L7 8XP, United Kingdom
08

References and documents

Publications

  • Moore AR, Boyce M, Steele IA, Campbell F, Varro A, Pritchard DM. Netazepide, a gastrin receptor antagonist, normalises tumour biomarkers and causes regression of type 1 gastric neuroendocrine tumours in a nonrandomised trial of patients with chronic atrophic gastritis. PLoS One. 2013 Oct 1;8(10):e76462. doi: 10.1371/journal.pone.0076462. eCollection 2013. PubMed 24098507 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 19, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01339169
Lead sponsor
Trio Medicines Ltd.
Collaborators
Royal Liverpool University Hospital
Responsible party
Sponsor
First posted
Apr 20, 2011
Start date
Jan 4, 2011
Primary completion
Dec 10, 2013
Completion
Dec 10, 2013
Last update
Aug 19, 2019

Study contacts

Malcolm Boyce, BSc FRCP FFPM
study director · Trio Medicines Ltd.
Mark Pritchard, PhD FRCP
principal investigator · Royal Liverpool University Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2019. You cannot join it, but the record below documents what was studied.

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