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Absorption; ChemicalsPhase 1CLIPNCT05032807

Pharmacokinetic Study of a Novel Lipid Formulation of Cannabidiol Compared to a Standard Formulation

A Phase 1 study testing Standard formulation and Novel formulation in people with Absorption; Chemicals, run by King's College London at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Absorption; Chemicals
What is being tested?
Standard formulation and Novel formulation
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteUnited Kingdom
Study dates
1 Jul 2022to 10 Sep 2022
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Inclusion criteria i. Healthy volunteers. Defined as healthy on the basis of a clinical history, physical examination, ECG, vital signs, and laboratory tests of blood and urine.

ii. Age 18-45 iii. Agreeing to fast 15 hours; 10pm-1pm on dosing days iv. Capable of giving informed consent v. Written informed consent from participant

Exclusion criteria i. Clinically relevant medical history, physical findings, ECG, or laboratory values at the pre-trial screening assessment that could interfere with the objectives of the trial or the safety of the participant.

ii. Presence of acute or chronic illness or history of chronic illness sufficient to invalidate the volunteer's participation in the trial or make it unnecessarily hazardous.

iii. Impaired endocrine, thyroid, hepatic, respiratory or renal function, diabetes mellitus, coronary heart disease, or history of any neurological or mental illness.

iv. Surgery or medical condition that might affect absorption of medicines. v. Blood pressure and heart rate in supine position at the screening examination outside the ranges: blood pressure 90-140 mm Hg systolic, 40-90 mm Hg diastolic; heart rate 40-100 beats/min. Repeat measurements are permitted if values are borderline (i.e. values that are within 5 mm Hg for blood pressure or 5 beats/min for heart rate) or if requested by the investigator. Subjects can be included if the repeat value is within range or still borderline but deemed not clinically significant by the investigator.

vi. Loss of more than 400 mL blood during the 3 months before the trial, e.g. as a blood donor.

vii. Any prescribed medication (apart from contraceptives) viii. Use of any CBD products within six months of IMP administration ix. Use of any over-the-counter medications or health supplements within the past 2 weeks x. BMI <18 or >30.0kg/m2 xi. History of alcohol or substance misuse disorder xii. Intake of more than 14 units of alcohol weekly. xiii. Smokes more than 10 cigarettes per day xiv. Use of any illicit substances within the last six months of IMP administration xv. Pregnant or breastfeeding xvi. Women of childbearing potential (as defined in CTFG guidelines, see 5.7 Concomitant Medication) not willing to use a highly effective form of contraception (as defined in CTFG guidelines, see section 5.7 Concomitant Medication) during participation in the study or male patients not willing to ensure use of a condom during participation in the study.

xvii. eGFR≤ 70 mls/min xviii. Any liver function or renal function test abnormality. A repeat is allowed on one occasion for determination of eligibility.

xix. Urine drug screen positive for any substances xx. Positive alcohol breath test xxi. Participant in any other clinical trial or experimental drug study in the past 3 months xxii. Known hypersensitivity to CBD and/or SEEK formulation excipients xxiii. Participant is not able to swallow capsules

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • King's College London

    London, SE5 8AB

Other trials in United Kingdom

About this study

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.

Read more

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.

Being tested
Standard formulation, Novel formulation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Standard formulationDrug

    Cannabidiol 1000mg standard formulation, single dose, oral

  • Novel formulationDrug

    Cannabidiol 1000mg with lipid matrix, single dose, oral

Study groups in NCT05032807
Study groupRoleWhat they receive
Novel lipid formulation then standard formulationExperimentalNot described
Receives: Drug: Standard formulation; Drug: Novel formulation
Standard formulation then lipid formulationExperimentalNot described
Receives: Drug: Standard formulation; Drug: Novel formulation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Total Drug Exposure. (Area Under the Curve to Infinity [AUC(Inf)]

    Difference in AUC(inf) for a single dose of oral CBD between the novel and standard formulations in the fasting state.

    Measured: 0 - 48 hours

Secondary outcomes (5)
  1. Cmax

    Maximum plasma concentration

    Measured: 0 - 48 hours

  2. Tmax

    Time after administration of drug when maximum plasma concentration is reached

    Measured: 0 - 48 hours

  3. Plasma Half-life (t½)

    Half-life

    Measured: 0 - 48 hours

  4. 48 Hour Drug Exposure (AUC0-48)

    Area under the concentration-time curve from time zero to 48hours

    Measured: 0 - 48 hours

  5. Gastrointestinal Symptom Rating Scale (GSRS) - Total Score

    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).

    Measured: The scale will be used pre-dose and at 24 and 48 hours post dose.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Sep 2021
  2. Study start1 Jul 2022
  3. Primary completion26 Aug 2022
  4. Study completion10 Sep 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05032807
Sponsor's protocol ID
IRAS: 288415
Acronym
CLIP
Status last verified
Feb 2024
First submitted
25 Aug 2021
Last updated
6 Feb 2024
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Chesney E, Mazibuko N, Oliver D, Minichino A, Lamper AD, Chester L, Reilly TJ, Lloyd M, Krakstrom M, Dickens AM, Oresic M, Lynch E, Stoloff G, Mehta MA, McGuire P. Novel Lipid Formulation Increases Absorption of Oral Cannabidiol (CBD). Pharmaceutics. 2024 Dec 1;16(12):1537. doi: 10.3390/pharmaceutics16121537.

    PubMed 39771516

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Standard formulation and Novel formulation in people with Absorption; Chemicals, run by King's College London at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 Feb 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Total Drug Exposure. (Area Under the Curve to Infinity [AUC(Inf)] (time frame: 0 - 48 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05032807, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Feb 2024.

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