CClinicalTrials.gg
Status unknownNCT02820558Updated May 21, 2020

Neuropeptide Therapy of Recent Onset Type 1 Diabetes

A Phase 1 interventional study of Substance P in Diabetes Mellitus, Type 1, sponsored by Vanilloid Genetics Inc.. Status unknown at 1 site in Canada. Open to participants aged 10 Years to 18 Years. Per ClinicalTrials.gov, last updated 2020-05-21.

Sponsored by Vanilloid Genetics Inc. · Phase 1, Interventional, and Treatment

The sponsor has not verified this record recently (last verified May 2020), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Non-randomized
Ages
10 Years to 18 Years
Sex
All
01

Study summary

This study evaluates the delivery of substance P via the celiac artery in the treatment of recent onset type 1 diabetes.

02

Conditions studied

  • Diabetes Mellitus, Type 1

Keywords

  • Neuropeptide
  • Therapy
  • Onset
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's planned enrollment of 12 is below the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

This is the only study on the registry with Vanilloid Genetics Inc. as lead sponsor.

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

04

Who can participate

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

Inclusion criteria

  • Recent onset T1D (CDA 2013 guidelines: See link in links section
  • Age 10-18 years
  • Disease Duration 3-30 months
  • Fasting C-Peptide (measured at screening) greater than or equal to 33 pmol/L
  • Post honeymoon phase based on the following criteria: History of HbA1c values and insulin requirements from diagnosis indicating a honeymoon period followed by increased insulin requirements which at time of recruitment are > 0.50 units/Kg together with an HbA1c value > 7.2 %; Patients with diabetes duration > 3 months who never experienced a honeymoon period as reflected by consistent HbA1c values > 7.2 % from the time of diagnosis and at the time of recruitment are using an insulin dose > 0.50 units/Kg.
  • The presence of one or more of the TRPV1 alleles similar to those found in patients currently enrolled in the TRPV1-North American - European Study.
  • Stimulated C-Peptide (measured at mixed meal tolerance at Stage A and Stage B of sP trial) ≥ 200 pmol/L and less than or equal to 1500 pmol/L.

Exclusion criteria

Exclusion Criteria:

  • Patients with known co-morbidities, including ACE-inhibitor treated hypertension as well as chromosomal abnormalities, involving one or more organ systems.
  • Type 2 Diabetes Mellitus
  • Patients with a known radiographic contrast allergy
  • Pregnancy.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
12 participants (estimated)

Study arms

  • Experimental
    Substance P - 1nmol/kg

    Substance P 1nmol/kg intra-celiac artery, single treatment

    Drug: Substance P

  • Experimental
    Substance P - 5nmol/kg

    Substance P 5nmol/kg intra-celiac artery, single treatment

    Drug: Substance P

  • Experimental
    Substance P - 15nmol/kg

    Substance P 15nmol/kg intra-celiac artery, single treatment

    Drug: Substance P

  • Experimental
    Substance P - 45nmol/kg

    Substance P 45nmol/kg intra-celiac artery, single treatment

    Drug: Substance P

Interventions

  • DrugSubstance P
06

What researchers measure

Primary outcomes

  1. Stage A Safety: Side effects reported for entire cohort

    To determine if there are unexpected adverse events with intra arterial delivery of sP into the celiac artery in individuals with Type 1 Diabetes, and evidence of residual beta cell function as reflected by a peak C---peptide levels of \> 200 pmol/L. Multiple measurements per patient will be aggregated to arrive at one reported value: Number of participants with abnormal laboratory values, adverse events and/or peak C-peptide levels \>200pmol/L that are related to treatment.

    Time frame: Reported during the first 20-27 days following sP administration

Secondary outcomes

  1. C-Peptide Levels (small cohort)

    To determine in an initial small cohort (n=12, toxicity and dose finding cohort) if one or more sP doses significantly increases the basal or stimulated c---Peptide levels at Day 20---27 post---injection using data from Mixed Meal Tolerance Test (MMTT).

    Time frame: Day 20-27 post sP injection

  2. C-Peptide Levels (large cohort)

    To assess in a larger cohort (n=40, continued safety and efficacy) whether sP dose, determined from the dose finding cohort, significantly increases basal or stimulated C-- peptide levels at Day 20---27 post sP---injection using MMTT data.

    Time frame: Day 20-27 post sP injection

Other outcomes

  1. sP Longevity

    To determine an estimate of sP longevity in the entire cohort of patients, by monitoring HbA1c values, exogenous insulin requirement, daily recorded blood sugar levels and adverse event recording at 3 and 6 months post injection of sP. Multiple measurements per patient will be aggregated to arrive at one reported value for the aforementioned outcome measures.

    Time frame: 3 and 6 months

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 21, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02820558
Lead sponsor
Vanilloid Genetics Inc.
Responsible party
Sponsor
First posted
Jul 1, 2016
Start date
May 2016
Primary completion
Dec 2022 (estimated)
Completion
Dec 2022 (estimated)
Last update
May 21, 2020

Study contacts

Holly Tschirhart
Contact
holly.tschirhart@sickkids.ca
416-813-7654 ext. 204517
Catherine Pastor
Contact
416-813-7654 ext. 204396
Etienne Sochett, MD
principal investigator · Hospital for Sick Children, Toronto Ontario

Oversight

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

Not currently enrolling

This study is status unknown, as verified in May 2020. You cannot join it, but the record below documents what was studied.

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