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Oromucosal Delivery of Insulin: “Proof of Concept” Using a Mucoadhesive Wafer Dosage Form Containing Insulin. A single-center study with two parts: Part 1 comparing lingual/palatal versus gingival insulin wafer administration according to an open-label, parallel-group design, and, on condition that satisfactory exposure has been achieved, Part 2 investigating positive and negative control according to a double blind, crossover design. PART 2

Oromucosal Delivery of Insulin: “Proof of Concept” Using a Mucoadhesive Wafer Dosage Form Containing Insulin. A single-center study with two parts: Part 1 comparing lingual/palatal versus gingival insulin wafer administration according to an open-label, parallel-group design, and, on condition that satisfactory exposure has been achieved, Part 2 investigating positive and negative control according to a double blind, crossover design. PART 2

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
DRKS
Registry ID
DRKS00003127
Enrollment
12
Registered
2011-07-12
Start date
2011-07-20
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

This is a Phase I study, involving healthy subjects. The study is designed as a "Proof of Concept" to evaluate oromucosal delivery of insulin, contained in a mucoadhesive wafer. The study population in this clinical study will not benefit from the treatment. Orosomucosal delivery of insulin may be of benefit to patients with Diabetes Mellitus. E10

Interventions

Group 1: Lingual/palatal OR Gingival placebo wafers (depending on the results of Part 1 of the study) plus subcutaneously administered insulin (0.2 mL, 7.5 IU)
N=12 healthy subjects. Group 2: Lingual/palatal OR Gingival placebo wafers (depending on the results of Part 1 of the study) plus subcutaneously administered physiological saline (0.2 mL)
N=12 healthy subjects.

Sponsors

LTS Lohmann Therapie-Systeme AG
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
18 Years to 45 Years

Inclusion criteria

Inclusion criteria: Male subjects of any ethnic origin between 18 and 45 years of age (inclusive); Non-smokers; In good general physical health, determined by medical history (including exclusion of first-degree family diabetes); Physical examination, electrocardiogram (ECG), vital signs, clinical laboratory tests; Body Mass Index within 19 to 28 kg/m2 and body weight within 69.4 to 80.6 kg (75 kg ± 7.5%); Fasting venous blood glucose between 70 and 110 mg/dL (inclusive).

Exclusion criteria

Exclusion criteria: Subjects with tendency for gum bleeding, oromucosal lesions or other oromucosal diseases; Subjects with a clinical history of allergic reactions against p-Hydroxy benzoic acid esters (PHB-esters); Hypersensitivity to any of the ingredients of the investigational medicinal product; Any history of alcohol or drug abuse; Any history of chronic gastritis or peptic ulcers; Any history of chronic or recurrent metabolic, renal, hepatic, pulmonary, gastrointestinal, neurological (esp. history of epileptic seizures), endocrinological, immunological, psychiatric or cardiovascular disease, myopathies and bleeding tendency; Blood donation within 30 days prior to inclusion in this study; Laboratory values outside the reference range that are of clinical relevance (e.g., suggesting an unknown disease and requiring further clinical evaluation assessed by the investigator) especially aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma glutamyl transpeptidase (gamma-GT).

Design outcomes

Primary

MeasureTime frame
Part 2 of the study: "Proof of concept" by comparing insulin delivery after oromucosal application of insulin-containing wafers (data from Part 1) with subcutaneous injection of insulin and placebo. Glucose clamp: Constant insulin infusion: up to 5 h after start administration with an infusion rate of up to 0.15 mU/kg min. Glucose sampling (capillary blood sampling): approximately every 10 to 15 min for approximately 50 min prior to dosing (at least 5 samples), every 5 min during wafer application (at least 13 samples), after the end of the administration period every 15 to 30 min for up to 5 h after start of wafer administration (at least 16 samples). Venous blood sampling for pharmacokinetics: Blood samples (2.7 mL) for the determination of insulin and C-peptide concentrations in serum at -2.0, -1.5, -1.0, -0.5, 0 (=start of wafer administration), 0,083 (5 min), 0,167 (10 min), 0.25 (15 min), 0.33 (20 min), 0.42 (25 min), 0.5 (30 min), 0.75 (45 min), 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0 h after start of administration (21 blood samples). Venous blood sampling for pharmacodynamics: Blood samples (2.7 mL) for the determination of glucose in plasma will be taken at -2.0, -1.5, -1.0, -0.5, 0 (=start of wafer administration), 0.083 (5 min), 0.167 (10 min), 0.25 (15 min), 0.33 (20 min), 0.42 (25 min), 0.5 (30 min), 0.75 (45 min), 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0 after start of administration (21 blood samples).

Secondary

MeasureTime frame
Secondary objective is to assess the safety and tolerability of oromucosal application of insulin containing wafers. Adverse events, physical examination, clinical laboratory, vital signs, ECG, local and overall tolerability.

Countries

Germany

Contacts

Public ContactWolfgang Timmer

CRS Clinical Research Services Mannheim GmbH

wolfgang.timmer@crs-group.de+49 621 15045 0

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026