Standard formulation
Cannabidiol 1000mg standard formulation, single dose, oral
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Cannabidiol (CBD) has been approved as a treatment for rare childhood epilepsies and could be an effective treatment for psychotic disorders, anxiety disorders and addictions. It is available as an oral liquid and as standard oral capsules. The bioavailability of oral cannabidiol is poor (only around 5-10% is absorbed), particularly in the fasted state. With food, its absorption is much higher. In one study, a high-fat breakfast increased the maximum plasma concentration by 4-5 times. As a result of this food effect, when prescribing standard oral formulations of CBD, clinicians should provide advice on dosing the drug according to mealtimes, otherwise, there may be an increased risk of side effects or limited effectiveness. One way to reduce the food effect and improve bioavailability is to use lipid excipients. In the present study, the investigators will evaluate CBD at the dose that is effective in patients with chronic psychosis (1000mg). The novel formulation will use lipids that are all EU pharmacopoeia approved and have been used in medicinal products before. The study aims to assess whether a novel lipid formulation can increase the bioavailability of oral CBD in the fasting state.
Locally preserved from ClinicalTrials.govOpen ClinicalTrials.govlast source update 2024-02-06
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Results are reported by the registry submitter and preserved exactly. They are not independent verification or a treatment recommendation.
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Interventions
Cannabidiol 1000mg standard formulation, single dose, oral
Cannabidiol 1000mg with lipid matrix, single dose, oral
Source-reported results
Results are reported by the registry submitter and preserved exactly. They are not independent verification or a treatment recommendation.
Difference in AUC(inf) for a single dose of oral CBD between the novel and standard formulations in the fasting state.
Population: AUCinf could not be calculated for three participants in the standard CBD arm as plasma levels were not falling at the final time point.
| Group | N | Value | Spread / interval |
|---|---|---|---|
| Novel Lipid Formulation Cannabidiol | 14 | 674.9 | 103.05 |
| Standard Formulation Cannabidiol | 11 | 134.76 | 88.70 |
Maximum plasma concentration
| Group | N | Value | Spread / interval |
|---|---|---|---|
| Novel Lipid Formulation Cannabidiol | 14 | 73.00 | 149.82 |
| Standard Formulation Cannabidiol | 14 | 3.11 | 103.55 |
Time after administration of drug when maximum plasma concentration is reached
| Group | N | Value | Spread / interval |
|---|---|---|---|
| Novel Lipid Formulation Cannabidiol | 14 | 4 | 2 to 8 |
| Standard Formulation Cannabidiol | 14 | 6 | 3 to 48 |
Half-life
| Group | N | Value | Spread / interval |
|---|---|---|---|
| Novel Lipid Formulation Cannabidiol | 14 | 13.71 | 5.89 |
| Standard Formulation Cannabidiol | 11 | 51.83 | 57.61 |
Area under the concentration-time curve from time zero to 48hours
| Group | N | Value | Spread / interval |
|---|---|---|---|
| Novel Lipid Formulation Cannabidiol | 14 | 611.42 | 104.60 |
| Standard Formulation Cannabidiol | 14 | 66.79 | 50.65 |
The GSRS was used to assess gastrointestinal symptoms over the past 24 hours only. It is a 15-item rating scale, where each item is assessed with a 7-point Likert scale, scored from 1 to 7, and with higher scores indicating more severe symptoms. The total score is the mean score across items (minimum score=1; maximum sore=7).
| Group | N | Value | Spread / interval |
|---|---|---|---|
| Novel Lipid Formulation Cannabidiol | 14 | 1.09 | 0.17 |
| Standard Formulation Cannabidiol | 14 | 1.06 | 0.09 |
| Novel Lipid Formulation Cannabidiol | 14 | 1.25 | 0.36 |
| Standard Formulation Cannabidiol | 14 | 1.06 | 0.11 |
| Novel Lipid Formulation Cannabidiol | 14 | 1.09 | 0.18 |
| Standard Formulation Cannabidiol | 14 | 1.02 | 0.04 |
| Milestone | Novel Lipid Formulation Cannabidiol, Then Standard Formulation Cannabidiol | Standard Formulation Cannabidiol, Then Novel Lipid Formulation Cannabidiol |
|---|---|---|
| STARTED | 7 | 7 |
| COMPLETED | 7 | 7 |
| NOT COMPLETED | 0 | 0 |
| Milestone | Novel Lipid Formulation Cannabidiol, Then Standard Formulation Cannabidiol | Standard Formulation Cannabidiol, Then Novel Lipid Formulation Cannabidiol |
|---|---|---|
| STARTED | 7 | 7 |
| COMPLETED | 7 | 7 |
| NOT COMPLETED | 0 | 0 |
| Event | System | Groups: affected / at risk |
|---|---|---|
| Anxiety | Psychiatric disorders | Novel Lipid Formulation Cannabidiol: 1 / 14 · Standard Formulation Cannabidiol: 0 / 14 |
| Somnolence | Psychiatric disorders | Novel Lipid Formulation Cannabidiol: 7 / 14 · Standard Formulation Cannabidiol: 2 / 14 |
| Dizziness | Nervous system disorders | Novel Lipid Formulation Cannabidiol: 1 / 14 · Standard Formulation Cannabidiol: 1 / 14 |
| Nausea | Gastrointestinal disorders | Novel Lipid Formulation Cannabidiol: 1 / 14 · Standard Formulation Cannabidiol: 1 / 14 |
| Abdominal pain | Gastrointestinal disorders | Novel Lipid Formulation Cannabidiol: 1 / 14 · Standard Formulation Cannabidiol: 0 / 14 |
| Abdominal distension | Gastrointestinal disorders | Novel Lipid Formulation Cannabidiol: 1 / 14 · Standard Formulation Cannabidiol: 0 / 14 |
| Diarrhoea | Gastrointestinal disorders | Novel Lipid Formulation Cannabidiol: 2 / 14 · Standard Formulation Cannabidiol: 0 / 14 |
| Vomiting | Gastrointestinal disorders | Novel Lipid Formulation Cannabidiol: 0 / 14 · Standard Formulation Cannabidiol: 1 / 14 |
| Flatulence | Gastrointestinal disorders | Novel Lipid Formulation Cannabidiol: 1 / 14 · Standard Formulation Cannabidiol: 1 / 14 |
| Other | General disorders | Novel Lipid Formulation Cannabidiol: 3 / 14 · Standard Formulation Cannabidiol: 6 / 14 |
Eligibility
primary outcomes
Time frame: 0 - 48 hours
Difference in AUC(inf) for a single dose of oral CBD between the novel and standard formulations in the fasting state.
secondary outcomes
Time frame: 0 - 48 hours
Maximum plasma concentration
Time frame: 0 - 48 hours
Time after administration of drug when maximum plasma concentration is reached
Time frame: 0 - 48 hours
Half-life
Time frame: 0 - 48 hours
Area under the concentration-time curve from time zero to 48hours
Time frame: The scale will be used pre-dose and at 24 and 48 hours post dose.
The GSRS was used to assess gastrointestinal symptoms over the past 24 hours only. It is a 15-item rating scale, where each item is assessed with a 7-point Likert scale, scored from 1 to 7, and with higher scores indicating more severe symptoms. The total score is the mean score across items (minimum score=1; maximum sore=7).
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