A study to investigate the safety and concentration in the blood and urine of different dose strengths of OCT461201 in healthy volunteers

ISRCTN ISRCTN39003837
DOI https://doi.org/10.1186/ISRCTN39003837
EudraCT/CTIS number 2022-003422-41
IRAS number 1006789
ClinicalTrials.gov number Nil Known
Secondary identifying numbers OCT-001-2023, IRAS 1006789
Submission date
31/05/2023
Registration date
31/05/2023
Last edited
22/05/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
The purpose of this study is to investigate the study drug OCT461201. The main objectives of the study are as follows:
1. To determine the safety and tolerability (the degree to which the side effects of a drug can be tolerated) of OCT461201 when it is administered once (in the form of oral capsules) at different dose strengths.
2. To investigate the concentration of OCT461201 in the blood and urine, how this changes over a period of time and to evaluate whether there are differences in the concentrations when different dose strengths are given.

Who can participate?
Healthy adult males or females aged between 18 and 55 years

What does the study involve?
The study will consist of a screening visit (between 35 and 2 days before the dose), one treatment period (consisting of 3 days with 2 overnight stays), a single return visit on Day 3, and a post-study follow-up visit 4-8 days after the dose of OCT461201 on Day 1.

What are the possible benefits and risks of participating?
Taking part in this study is not expected to provide participants with any direct medical benefit.

Possible risks include the following:
Blood sampling: The procedure for blood collection either by direct venepuncture or indwelling cannula may cause mild pain and bruise at the collection site. The placement of an indwelling catheter is proposed to minimise these effects for rapid PK sampling. Very rarely, a blockage of a vein or a small nerve injury can occur, resulting in numbness and pain. If this occurs, it will resolve with time.

Blood pressure and pulse rate: The participant's blood pressure and pulse will be measured using an inflatable cuff which will be placed on the arm. They may experience mild discomfort in the arm whilst the cuff is inflated.

ECG: Small sticky pads will be placed on the participants’ upper bodies before the ECG and an ECG machine will measure the electrical activity of the participant's heart. Before the pads are applied, the skin needs to be cleaned. Trained staff may need to shave/clip small patches of the participant's hair in these areas. Like Elastoplast® these sticky pads may be uncomfortable to remove.

COVID-19 risks: Participants should also be aware of the risks of exposure to COVID-19. When participants attend the clinical unit at each visit, they may be asked to complete a self-declaration form and temperature check to confirm that they are not showing any early signs of COVID-19 infection and that they have not had any contact with individuals who are currently self-isolating or have tested positive (dependent on risk mitigation measures employed at the clinical unit at the time of clinical conduct). Participants may also be required to have a negative COVID-19 test before admission to the clinical unit for any overnight stays as defined within the study protocol. This procedure may cause some mild discomfort in the nose or throat when the swab is being taken but this should resolve after the procedure has been completed.

Harm to the unborn child:
The treatment might harm the unborn child; therefore, volunteers who are pregnant, breast-feeding or who intend to become pregnant 95 days following the dose of OCT461201, will not be eligible to take part. For male participants (of childbearing potential), they will be required to use a highly effective method of contraception (in addition to a condom) with their partner (of childbearing potential) from the point of the dose of OCT461201 until at least 95 days following the dose of OCT461201.
For female participants (of childbearing potential) a negative pregnancy result must be obtained before the start of the study. They will be required to use a highly effective method of contraception (in addition to a condom) with their partner (of childbearing potential) from the point of screening until at least 95 days following the dose of OCT461201.
Throughout the study the health of the participants will be regularly monitored and appropriate treatment for any medical condition will be provided if required. All doctors employed by Simbec-Orion are trained and certified in Advanced Life Support Procedures to deal with a medical emergency. Nurses and other clinical staff are also trained in emergency procedures. Simbec-Orion also has an agreement with Prince Charles Hospital for the referral of participants if required following a medical emergency.

Where is the study run from?
Simbec-Orion Clinical Pharmacology Unit (UK)

When is the study starting and how long is it expected to run for?
July 2022 to August 2023

Who is funding the study?
Oxford Cannabinoid Technologies, Ltd (UK)

Who is the main contact?
Valentino Parravicini, valentino@oxcantech.com

Contact information

Mr Valentino Parravicini
Scientific

Oxford Cannabinoids Technologies Ltd.
Prama House
267 Banbury Road
Oxford
OX2 7HT
United Kingdom

Phone +44(0) 7432 003 366
Email valentino@oxcantech.com
Mr Valentino Parravicini
Public

Oxford Cannabinoids Technologies Ltd.
Prama House
267 Banbury Road
Oxford
OX2 7HT
United Kingdom

Phone +44(0) 7432 003 366
Email valentino@oxcantech.com
Dr Annelize Koch
Principal Investigator

Simbec-Orion Clinical Pharmacology
Merthyr Tydfil Industrial Park
Cardiff Road
Merthyr Tydfil
CF48 4DR
United Kingdom

Phone +44 1443694313
Email annelize.koch@simbecorion.com

Study information

Study designInterventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Pharmaceutical testing facility, Other
Study typeOther, Safety
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleA Phase I, first-in-human, randomised, double-blind, placebo-controlled, single ascending oral dose, safety, tolerability and pharmacokinetic study to investigate the effects of OCT461201 in healthy volunteers
Study acronymOCT-001-2023
Study objectivesThe primary objective of this study is:
1. To assess the safety and tolerability of single ascending oral doses of OCT461201 in healthy participants.

The secondary objective of this study is:
1. To characterise the pharmacokinetics (PK) of single doses of OCT461201 in healthy participants.
Ethics approval(s)1. Approved 29/03/2023, Wales Research Ethics Committee 2 (Health and Care Research Wales, Castlebridge 4, 15-19 Cowbridge Road East, Cardiff, CF11 9AB, UK; +44 2920 230457; Wales.REC2@wales.nhs.uk), ref: 23/WA/0001
2. Approved 16/05/2023, MHRA (10 South Colonnade, Canary Wharf, London, E14 4PU, UK; +44 (0) 20 3080 6000; info@mhra.gov.uk), ref: CTA 57516/0001/001-0001

The HRA has approved deferral of publication of trial details.
Health condition(s) or problem(s) studiedHealthy volunteers
InterventionThe study will consist of up to 32 participants split into 4 planned cohorts: each cohort investigating a different dose strength of OCT461201 starting at the lowest dose and gradually increasing in each cohort.

Within each cohort, participants will be randomised to receive OCT461201 capsules or a matching placebo (in a 3:1 ratio) with a single dose administered on Day 1. Each cohort will follow a dose leader schedule, whereby 2 participants (1 active, 1 placebo) will be dosed a minimum of 24 hours prior to the remaining participants in the cohort. Between each cohort, safety and PK data will be evaluated by a Dose Escalation Review Committee (DERC) to determine whether it is appropriate to dose escalate into the next cohort.

The study will consist of a screening visit (between 35 and 2 days prior to dose), one treatment period (consisting of 3 days with 2 overnight stays), a single return visit on Day 3 and a post-study follow-up visit 4-8 days after the dose of OCT461201 on Day 1.

The study end is defined as last subject last visit. The study will take place in the Clinical Unit of Simbec-Orion Clinical Pharmacology (Clinical Unit) under full medical and nursing supervision.
Intervention typeDrug
Pharmaceutical study type(s)Pharmacokinetic
PhasePhase I
Drug / device / biological / vaccine name(s)OCT461201
Primary outcome measureThe primary endpoints for this study are safety endpoints and are defined as follows:
1. Adverse events (AEs) will be recorded from the point of informed consent up to the final post-study follow-up visit
2. Laboratory safety (biochemistry, haematology and urinalysis) at Screening, Day -1, Day 2, and post-study follow-up visit on Days 5-9
3. Vital signs (systolic/diastolic blood pressure, heart rate, respiratory rate, oral body temperature) at Screening, Day -1, Day 1 (pre-dose, 1 h, 2 h, 4 h, 8 h, 12 h post-dose), Day 2 (24 h post-dose) and post-study follow-up visit on Day 5-9
4. 12-lead ECG (heart rate, PR interval, QRS duration, QT interval and QTcF interval) at Screening, Day -1, Day 1 (pre-dose, 1 h, 2 h, 4 h, 8 h, 12 h post-dose), Day 2 (24 h post-dose) and post-study follow-up visit on Day 5-9
Secondary outcome measuresThe secondary endpoints for this study are PK parameters derived from the analysis of plasma and urine samples for concentrations of OCT461201. PK endpoints are defined as follows:

Plasma:
1. Cmax - Maximum concentration.
2. Tmax - The time to maximum observed concentration
3. λz - Elimination rate constant
4. t1/2 - Terminal elimination half-life
5. AUClast - Area under the concentration-time curve (AUC) from the time of dosing to the time of the last measurable concentration
6. AUC0-t - AUC from the time of dosing to the last time of the measurable concentration
7. AUC0-inf - AUC extrapolated to infinity
8. AUC% extrapolated - Residual area
9. CL/F - Apparent total body clearance following extravascular administration
10. Vz/F - Apparent volume of distribution following extravascular administration
Measured using blood samples taken on Day 1: Pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24 and 48 hours post-dose

For urine:
1. Ae - Amount and cumulative amount of dose excreted in urine over each collection interval
2. Ae% - % and cumulative % of dose excreted in urine over each collection interval
3. CLR - Renal clearance
Measured using urine samples taken on Day 1: Pre-dose, 0-12 hours post-dose and 12-24 hours post-dose
Overall study start date19/07/2022
Completion date31/08/2023

Eligibility

Participant type(s)Healthy volunteer
Age groupAdult
Lower age limit18 Years
Upper age limit55 Years
SexBoth
Target number of participants32
Total final enrolment32
Key inclusion criteria1. Healthy male and female participants, between 18 and 55 years of age, inclusive, at the time of screening
2. Participant with a body mass index (BMI) of 18-30 kg/m2
Key exclusion criteria1. History of clinically significant neurological illnesses, head traumas or metabolic disorders.
2. Reports having experienced suicidal ideation (Type 4 or 5 on the Columbia-Suicide Severity Rating Scale [C-SSRS]) within 35 days prior to Screening, any suicidal behaviour within 2 years prior to Screening (Any “Yes” answers on the Suicidal Behaviour section of C-SSRS), and/or the Investigator assesses the participant to be a safety risk to him/herself or others; in the last 2 years.
3. Participation in a New Chemical Entity (NCE) clinical study within the previous 3 months or five half-lives, whichever is longer, or a marketed drug clinical study within 30 days or five half-lives, whichever is longer, or exposure to more than four new chemical entities within 12 months before the first dose of IMP. (The washout period between studies is defined as the period of time elapsed between the last dose of the previous study and the first dose of the next study).
Date of first enrolment22/05/2023
Date of final enrolment31/08/2023

Locations

Countries of recruitment

  • United Kingdom
  • Wales

Study participating centre

Simbec Research Limited
Simbec House Merthyr Tydfil Industrial Park
Merthyr Tydfil Industrial Park
Pentrebach 
Merthyr Tydfil
Mid Glamorgan 
CF48 4DR
United Kingdom

Sponsor information

Oxford Cannabinoids Technologies Ltd.
Industry

Prama House
267 Banbury Road
Oxford
OX2 7HT
England
United Kingdom

Phone +44 (0) 7432 003 366
Email clinicaltrials@oxcantech.com
Website https://www.oxcantech.com/

Funders

Funder type

Industry

Oxford Cannabinoids Technologies Ltd.

No information available

Results and Publications

Intention to publish date17/02/2026
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planFull trial details will be published up to 30 months after the end of the trial. Publication of some trial details is deferred because of the high commercial sensitivity of this phase I study and the negligible benefit to the public of phase I information. Results will be posted on or after the date of publication of full trial details.
IPD sharing planThe datasets generated and/or analysed during the current study are not expected to be made available because of their high commercial sensitivity and the negligible benefit to the public of publication of results of non-therapeutic clinical trials.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results version 2.0 21/05/2024 22/05/2024 No No

Additional files

ISRCTN39003837_BasicResults_V2.0_21May24.pdf

Editorial Notes

22/05/2024: The information for which publication was previously deferred has been added to the following fields:
1. The public title was changed from "Phase 1 Trial: RD 797.35319 (OCT-001-2023)" to "A study to investigate the safety and concentration in the blood and urine of different dose strengths of OCT461201 in healthy volunteers.".
2. The scientific title was changed from "Phase 1 Trial: RD 797.35319 (OCT-001-2023)" to "A Phase I, first-in-human, randomised, double-blind, placebo-controlled, single ascending oral dose, safety, tolerability and pharmacokinetic study to investigate the effects of OCT461201 in healthy volunteers".
3. Study hypothesis
4. The overall study end date was changed from 04/08/2023 to 31/08/2023.
5. Interventions
6. Primary outcome measure
7. Secondary outcome measures
8. Participant inclusion criteria
9. Participant exclusion criteria
10. Plain English summary
11. Drug name(s)
12. Study setting
13. The basic results have been uploaded
14. The target number of participants was changed from 64 to 32
15. Total final enrolment added
16. The recruitment end date was changed from 29/07/2023 to 31/08/2023.
31/05/2023: Trial's existence confirmed by MHRA.