INTERVENTIONALCOMPLETEDISRCTN25163383
A Phase 1 Study to Assess the Safety and Pharmacokinetics of Novel Cannabidiol (CBD) Soft-gel Capsule Formulation (NW300EMCBD) in Healthy Subjects
The purpose of this study is to test a new formulation of cannabidiol (CBD) to see how it is processed in the body and how safe it is for healthy volunteers. CBD is a compound found in the cannabis plant that has shown potential to help treat various medical and mental health conditions. While there is already an approved CBD-based drug that is used for epilepsy in the UK, called Epidyolex, most CBD formulations have poor absorption when taken orally, reducing their effectiveness and often requiring higher doses. NW PharmaTech has developed a new CBD formulation aimed at improving absorption and processing by the body. This study will assess the absorption, safety, and tolerability of two different doses (600 mg and 900 mg) of the new formulation and will compare them with Epidyolex (dosed as per approved label). All participants will receive each of the following three dosing regimens in a randomised order across three separate experimental periods, with each period separated by a 25 day washout period, which ensures that the drug from one dosing regimen is fully cleared from your body before the next dosing regimen begins. Regimen A: 600 mg of the new CBD formulation (NW300EMCBD) administered orally Regimen B: 900 mg of the new CBD formulation (NW300EMCBD) administered orally Regimen C: 25 mg/kg Epidyolex solution (2 x 12.5 mg/kg doses separated by 12 hours) administered orally In total, participants will complete three dosing visits (one per experimental period), each spaced 25 days apart. The study will evaluate the pharmacokinetics (PK) of the formulations, which refers to how the body absorbs, distributes, metabolizes, and eliminates the drugs.
Locally preserved from ISRCTN registryOpen ISRCTN registry↗last source update 2026-02-02
What this record can show
Protocol only - no registry results posted
This locally preserved record separates the registered protocol from source-reported registry results. Neither is a treatment recommendation.
Registry facts
Study at a glance
- Phase
- PHASE1
- Enrollment
- 14 (ACTUAL)
- Start date
- 2025-09-22
- Sponsor
- Clerkenwell Health
- Design
- Not reported
- Locations
- 2
- Results record
- Not present in registry snapshot
Primary objective: 1. To compare the pharmacokinetics of NW300EMCBD versus the comparator Epidyolex. Secondary objectives: 2. To compare additional pharmacokinetics parameters of NW300EMCBD versus the comparator Epidyolex to provide mechanistic understanding of the PK. 3. To investigate the safety and tolerability of single doses of NW300EMCBD administered at two different dose levels in separate treatment periods versus the comparator Epidyolex. 4. To investigate the pharmacodynamics of single doses of NW300EMCBD versus the comparator Epidyolex.
PK in Healthy VolunteersCannabidiol formulationCannabidiol pharmacokineticEncapsulated Micellar CBD formulationCannabidiol safety
Linked local records
Related local records
Local links use governed condition terms or exact source-reported intervention names. They are navigation candidates, not efficacy claims.
Conditions
No published condition report matched.
Cannabinoids and active compounds
Interventions
What was registered
DrugEncapsulated Micellar Cannabinoid [Cannabidiol] NW300EMCBD, Epidyolex
Fourteen participants will be enrolled into the study (to provide a minimum of 12 evaluable participants). Participants will receive the following dose regimens in a randomised order across 3 treatment periods: • Regimen A: 600 mg NW300EMCBD administered orally as 2 x 300 mg capsules following a high-fat, high-calorie (HFHC) meal; • Regimen B: 900 mg NW300EMCBD administered orally as 3 x 300 mg capsules following a HFHC meal; • Regimen C: 25 mg/kg Epidyolex solution administered orally as 2 x 12.5 mg/kg doses separated by 12 hours, each following a HFHC meal. There will be a minimum 25-day washout period between the dosing visit (D1) of each treatment period. For each treatment period, participants will be required to stay at the clinical research site from the day before dosing until the completion of study activities on D5 (inpatient period: D-1 to D5). Participants will then be required to return to the clinical research site for scheduled outpatient visits until the end of the given treatment period (outpatient period; D6 to D9). Participants will be required to return to the clinical research site for the end of study visit (EOSV) 25 days after the final dosing visit (i.e., 25 days after D1 of the third treatment period). Trial participation will last approximately 105 days (i.e., max. 30-day screening period; 3 x approximately 25-day treatment periods) and involve a total of 29 visits (including 5 x visits per inpatient period per treatment period).
Encapsulated Micellar Cannabinoid [Cannabidiol] NW300EMCBD, Epidyolex Eligibility
Population and criteria
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 55 Years
- Healthy volunteers
- Not reported
Eligibility criteria
- 1. Healthy male or female volunteers. 2. Age range between 18 and 55 years old. 3. Weight at least 50kg and have a body mass index (BMI) between 19 and 30 kg/m2 at screening. 4. Willingness to comply with and complete all study procedures, including consuming the protocol specified HFHC meal in 30 minutes. 5. In good health, as determined by no clinically significant findings from medical history, 12-lead ECG and vital signs measurements, and clinical laboratory evaluations at screening and check-in, and from the physical examination at check-in, as assessed by the investigator or designee. 6. Abstinence from consuming St John’s wort, grapefruit (juice), alcohol or tobacco and nicotine products for at least 72 hours prior to dosing and throughout treatment period. 7. Abstinence from caffeine for the duration of the in-clinic confinement period, including all dosing days. Caffeinated beverages and products will not be available on site. 8. Capable and willing to comply with protocol requirements during the study. 9. Participant is willing and able to give informed consent for participation in the study. 1. Participation in a research trial within 90 days prior to Day 1, or 5 elimination half-lives prior to Day 1 (whichever is longer), or throughout the study. 2. Use of cannabis products, including hemp, in any form (including medication, oils, edibles or drinks) during the last 28 days before screening. 3. History of hypersensitivity or allergy to CBD oil, sesame oil, hemp or any other cannabinoid products, or any of the items that could be included in the standardized meals/snacks. 4. Using any regular medication in the 28 days prior to screening and throughout the study (as required doses of paracetamol or non-steroidal anti-inflammatory drugs (NSAIDs) are permitted). 5. Abnormal screening sample: clinically significant liver, renal or haematological abnormalities, including total Bilirubin, ALT or AST > the upper limit of normal (ULN). 6. Positive screening test indicating active infection with HIV, hepatitis B virus or hepatitis C virus. Participants with evidence of past HBV infection and complete recovery may be eligible, at the discretion of the Investigator, provided liver function tests are within normal limits and there is no evidence of active infection. 7. Positive urine drug sample, including THC, at screening and, baseline excluding THC at post-dose. 8. Positive alcohol breathalyser test at screening and throughout the study. 9. Any suicidal ideation or behaviour in the past 12 months as assessed by responses to Columbia Suicidal Severity Rating questionnaire at screening. 10. Any history of mental disorder including major depressive disorder, bipolar disorder, psychosis, and any current substance use disorder, including alcohol and tobacco use disorder. 11. Any self-reported, observed or assessed medical condition that might put the subject at risk according to the physician’s opinion. 12. Any significant previous or current history of comorbidities capable of significantly altering the absorption, metabolism, or elimination of drugs; of constituting a risk when taking the investigational product; or of interfering with the interpretation of data. 13. Participants with a sitting blood pressure at screening, after resting for 5 minutes, higher than 140/90 mmHg or lower than 90/50 mmHg. 14. Blood donation or loss (eg surgery) over 200 ml in 3 months prior to screening and throughout study (menstruation is acceptable). 15. Male participants not willing to use contraceptive methods throughout the study. 16. Female participants who are pregnant (positive B-hCG urine test), lactating or breastfeeding. 17. Female participants of childbearing potential* and not willing to use highly effective contraceptive methods** at screening or throughout the study. *Defined as females who have experienced menarche and are not surgically sterilised (eg hysterectomy, bilateral salpingectomy) or post-menopausal. **Highly effective methods of birth control are those with a failure rate <1% per year and include combined oestrogen and progesterone hormonal contraception, progestogen-only hormonal contraception, intrauterine devices (IUD), intrauterine hormone-releasing systems (IUS) and vasectomised partner. 18. Participants with planned surgical or medical treatment requiring hospitalisation during the study. 19. Employees or family members of the Sponsor. 20. Participant unable to communicate reliably with research team. 21. Participant is not able to swallow capsules. 22. Subject unable or unwilling to consume the protocol specified HFHC meal required by the trial protocol and/or the soft gel capsules, which contain gelatine of bovine origin, and/or Epidyolex which contains sesame oil and ethanol. 23. Subjects with alcohol consumption > 14U/ week.
primary outcomes
primary measures
CBD, 7-OH-CBD, and 7-COOH-CBD pharmacokinetics parameters: Cmax, Tmax, AUCt, AUCinf, t1/2; Cmax/D, AUCt/D, AUCinf/D (pre-dose and at 15, 30, 45, 60, 80, 100, 120, 150 min, 3, 4, 5, 6, 9, 12, 24, 48, 72, 96, 120, 144, 168, and 192 h post-dose for Regimen A and Regimen B; pre-dose and at 15, 30, 45, 60, 80, 100, 120, 150 min, 3, 4, 5, 6, 9, 12 h post-first dose and 15, 30, 45, 60, 80, 100, 120, 150 min, 3, 4, 6, 12, 24, 48, 72, 96, 120, 144, 168, and 192 h post-second dose for Regimen C).
secondary outcomes
secondary measures
1. CBD, 7-OH-CBD, and 7-COOH-CBD pharmacokinetics parameters: CL/F, Vz/F, Kel (pre-dose and at 15, 30, 45, 60, 80, 100, 120, 150 min, 3, 4, 5, 6, 9, 12, 24, 48, 72, 96, 120, 144, 168, and 192 h post-dose for Regimen A and Regimen B; pre-dose and at 15, 30, 45, 60, 80, 100, 120, 150 min, 3, 4, 5, 6, 9, 12 h post-first dose and 15, 30, 45, 60, 80, 100, 120, 150 min, 3, 4, 6, 12, 24, 48, 72, 96, 120, 144, 168, and 192 h post-second dose for Regimen C). 2. All reported adverse events using MedDRA V27 or above codes (from D1 to D9 of each treatment period and at the EOSV). 3. Changes from pre-dose baseline in laboratory findings after administration of oral doses of NW300EMCBD and Epidyolex (pre-dose and at 4, 24, 72, and 192 h post-dose for Regimen A and Regimen B; pre-dose, 4 h post-first dose, and at 4, 12, 24, 72, and 192 h post-second dose for Regimen C; and at the EOSV). 4. Changes from pre-dose baseline in vital signs over 192 hrs post-administration of oral doses of NW300EMCBD and Epidyolex (pre-dose and at 1, 2, 4, 8, 24, 48, 72, 96, 120, 144, 168, and 192 h post-dose for Regimen A and Regimen B; pre-dose and at 1, 2, 4, and 8 h post-first dose and at 1, 2, 4, 12, 24, 48, 72, 96, 120, 144, 168, and 192 h post-second dose for Regimen C; and at the EOSV). 5. Change from pre-dose baseline in ECG parameters (pre-dose and at 4 h post-dose for Regimen A, Regimen B, and Regimen C; and at the EOSV). 6. Change in gastrointestinal symptoms (pre-dose and at 3 and 24 h post-dose for Regimen A and Regimen B; pre-dose, 3 h post-first dose, and 12 and 24 h post-second dose for Regimen C). 7. Change in Columbia‐Suicide Severity Rating Scale (C‐SSRS) score (at screening; pre-dose and at 3, 24, 96, and 192 h post-dose for Regimen A and Regimen B; pre-dose, 3 h post-first dose, and at 12, 24, 96, and 192 h post-second dose for Regimen C; and at the EOSV). 8. Change in VAMS subscales (mental sedation subscale, tranquilisation and calming effects subscale, physical sedation subscale, other feelings and effects subscale) and in strength and desirability of drug effects, using the Drug Experience Questionnaire (DEQ-5) (pre dose and at 3 h post-dose for Regimen A, Regimen B, and Regimen C).
Publications
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Snapshot provenance
- Snapshot
- 363b1b2c-fd32-4781-973b-ce554587c67f
- Retrieved
- 24/09/2026, 15:03:16
- SHA-256
- d81d3f2cafab8ff5e163627ba1a67df364d19ca86ab007d077b8118b1b0d05f5