E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Vitamin D insufficiency undergoing tooth extraction |
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E.1.1.1 | Medical condition in easily understood language |
Vitamin D insufficiency undergoing tooth extraction |
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E.1.1.2 | Therapeutic area | Diseases [C] - Mouth and tooth diseases [C07] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To compare the wound healing score determined using the “Inflammatory Proliferative Remodeling Wound Healing Scale” (IRP-Score) between wisdom tooth extraction without and with a previous short-term Vitamin D3 supplementation for vitamin D insufficient patients with a bilateral indication for wisdom tooth extraction. |
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E.2.2 | Secondary objectives of the trial |
1. To assess the salivary levels of several pro-inflammatory mediators, particularly interleukin (IL)-1b, IL-8, and myeloid-related protein (MRP)-8/14, measured before and at different time points after wisdom tooth extraction with and without previous vitamin D3 supplementation and to compare the time course of the inflammatory reaction.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Age: 18 to 50 years • Gender: female/male • Patients with insufficient serum 25(OH)D3 levels: <75 nmol/l (<30ng/ml) According to a recently published study from Germany, the prevalence of vitamin D3 deficiency, classified as serum 25(OH)D3 levels <50 nmol/l (20 ng/ml) is 60-75% in winter and 30-45% in summer (5). Hence, we expect a sufficient number of participants corresponding to the inclusion criteria (serum 25(OH)D3 levels <75 nmol/l (30ng/ml). • Generally healthy Caucasian • Indication for bilateral wisdom tooth extraction from physiologically positioned wisdom teeth in the upper jaw • Patients who are able to follow the instructions of the X-ray technologist • Given written informed consent form for participation in the study |
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E.4 | Principal exclusion criteria |
• Known allergies/intolerances against any ingredients of the IMP • Pregnant/lactating women • Current or former smokers • Any current or past clinically significant pathology/disease (comorbidity) that, in the opinion of the surgeons or periodontists, might confound the results of the study or poses an additional risk to the subject during participation in the study o Renal insufficiency o Primary hyperparathyroidism o Malignancy o Other severe diseases (e.g. renal, hepatic, thyroid disease, bone metabolic diseases, rheumatoid osteoarthritis, human immunodeficiency syndrome, …) o Diabetes mellitus o Obesity class III (body mass index, BMI ≥40) o Medical conditions requiring daily calcium or antacid use o Medical conditions that result in a high calcium level in the blood or increased calcium excretion in the urine (e.g. as with treatment with certain medicines [benzothiazine derivates] • Current or previous treatments / therapies, including o Anticoagulants o Immunosuppressive therapy o Systemic antibiotics (within the last 3 months) o Chronic use of non-steroidal anti-inflammatory drugs, aspirin and corticosteroids o Vitamin, mineral or herbal preparations or food supplements (within the last 3 months) o Rifampicin or isoniazid (against tuberculosis). Tuberculosis will be regarded as a severe pathology, and thus, patients will not be included in the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
To compare the wound healing score determined using the “Inflammatory Proliferative Remodeling Wound Healing Scale” (IRP-Score) between wisdom tooth extraction without and with a previous short-term Vitamin D3 supplementation for vitamin D insufficient patients with a bilateral indication for wisdom tooth extraction. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1. To assess the salivary levels of several pro-inflammatory mediators, particularly interleukin (IL)-1b, IL-8, and myeloid-related protein (MRP)-8/14, measured before and at different time points after wisdom tooth extraction with and without previous vitamin D3 supplementation and to compare the time course of the inflammatory reaction. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.5.1 | Number of sites anticipated in the EEA | 1 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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last scheduled visit for the last patient |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 0 |