A double-blinded, randomized, placebo-controlled phase I/IIa study in healthy subjects and patients with liver cirrhosis evaluating safety, tolerablity, pharmacokinetics and preliminary effect of single and multiple doses of GR3027.

• Register: EUCTR
• Last refreshed on: 1 February 2020
• Main ID: EUCTR2016-003651-30-FI
• Date of registration: 11/04/2018
• Prospective Registration: Yes
• Primary sponsor: Umecrine Cognition AB
• Public title: A double-blinded, randomized, placebo-controlled phase I/IIa study in healthy subjects and patients with liver cirrhosis evaluating safety, tolerablity, pharmacokinetics and preliminary effect of single and multiple doses of GR3027.
• Scientific title: Safety, tolerability and pharmacokinetics (PKs) of multiple oral doses of GR3027 in healthy male volunteers and single and multiple doses in patients with cirrhosis. Preliminary efficacy in cirrhotic patients with evidence of covert hepatic encephalopathy (CHE). A prospective, double-blinded, randomized, placebo-controlled phase I/IIa study.
• Date of first enrolment: 17/05/2018
• Target sample size: 98
• Recruitment status: Not Recruiting
• URL: https://www.clinicaltrialsregister.eu/ctr-search/search?query=eudract_number:2016-003651-30
• Study type: Interventional clinical trial of medicinal product
• Study design: Controlled: yes; Randomised: yes; Open: no; Single blind: no; Double blind: yes; Parallel group: no; Cross over: no; Other: no; If controlled, specify comparator, Other Medicinial Product: no; Placebo: yes; Other: no; Number of treatment arms in the trial: 2
• Phase: Human pharmacology (Phase I): yes Therapeutic exploratory (Phase II): yes Therapeutic confirmatory - (Phase III): no Therapeutic use (Phase IV): no

Countries of recruitment

Denmark, Finland, Hungary, Poland, Sweden, Ukraine

Contacts

• Name: Magnus Doverskog
• Affiliation: Umecrine Cognition AB

• Name: Magnus Doverskog
• Affiliation: Umecrine Cognition AB

Key inclusion & exclusion criteria

Inclusion criteria:
Subjects with liver cirrhosis:
1.Male subject or female subject of non-childbearing potentialaged 18-70 years, inclusive, at the time of signing the informed consent.
2.BMI = 18 and = 40 kg/m2 and body weight at least 50 kg at screening.
3.Clinical diagnosis of liver cirrhosis of any cause based on biopsy, imaging, or other criteria.
4.MELD score between 8 and 20 (inclusive) (see Appendix 12.3).
5.Child-Pugh class B (score 5-6) for study part B, Child-Pugh class A or B (score 5-9) for study parts C and D (see Appendix 12.4).
6.Potential to benefit from HE treatment; i.e., no fixed cognitive impairment due to cerebrovascular and/or organic brain disease.
7.No changes in medication for HE or cirrhosis (e.g. lactulose, rifaximin, diuretics) for 14 days prior to randomization, except for adjustment of lactulose dose (e.g. for diarrhoea).
8.For patients participating in study part D: PHES must be equal to or below -5 and/or CRT index below 1.9 and/or ANT1 score < 20 (ANT1 does not apply for the first cohort.
9.For patients participating in study (part D): Availability of at least one designated family member or care-giver who, in the judgment of the Investigator, is capable of and willing to assume responsibility for facilitating subject compliance with study procedures (e.g. monitoring medication use, assisting the subject in attending study visits, communicating with the Investigator/study site as needed).
10. Male subjects must be willing to use condom and contraceptive methods with a failure rate of < 1% to prevent pregnancy and drug exposure of a partner and refrain from donating sperm from the date of dosing until three months after dosing of the IMP.
11. Females of non-childbearing potential must have documented tubal ligation or
hysterectomy; or be post-menopausal (defined as 12 months of amenorrhoea [in
questionable cases a blood sample with simultaneous follicle stimulating hormone
(FSH) 25-140 IE/L and oestradiol <200 pmol/L is confirmatory]).
12.Willing and able to give written informed consent for participation in the study.
13.Lucid and oriented to person, place, time and situation when giving the informed consent as judged by the Investigator.
14.Able to comply with study activities (including urine collections), as judged by the Investigator.




Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 83
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 15

Exclusion criteria:
Subjects with liver cirrhosis
1.Uncontrolled infection defined as persistent sepsis or bacteraemia with a lack of clinical improvement after at least one week of appropriate antibiotic treatment (chronic viral hepatitis is not an exclusion).
2.Active GI bleeding or a history of GI bleeding requiring blood transfusion (= 2 units) within 3 months of randomization.
3.Transjugular intrahepatic portosystemic shunt placement or revision within the past 90 days of randomization.
4.Occlusion of spontaneous spleno-renal shunt(s) within three months prior to screening or scheduled to undergo such occlusion within 24 weeks after randomization
5.West Haven Grade =2 at the time of enrolment or less than seven days since resolution of the last overt HE episode .
6.Diagnosis of HRS Type I or II.
7.Ascites which cannot be managed by dietary sodium restriction and maximal doses of diuretics.
8.Active or history of malignancy except for cutaneous basal cell carcinoma.
9.Clinically significant bowel disease.
10.Any planned major surgery within the duration of the study.
11.Any other significant medical conditions judged by the Investigator to preclude entry.
12.Any positive result on screening for HIV.
13.Any vital signs values outside the following ranges (at screening):
-Systolic BP < 90 mm Hg
-Diastolic BP < 50 mm Hg
-Heart rate < 50 or > 110 beats per minute
14.Prolonged QTcF (>500 ms), cardiac arrhythmia, or any clinically significant abnormality in the resting ECG (at screening).
15.Serum creatinine > 177 µmol/L, serum sodium < 125 mmol/L, platelet count of < 50,000/µL, INR>2.0, haemoglobin < 85 g/L, haematocrit < 25L/L (at screening)
16.Use of prohibited medications within 14 days prior to randomization, including:
-Ammonia lowering agents
-warfarin and warfarin like anticoagulants
-benzodiazepines or barbiturates
-maintenance methadone
-CYP2CB substrates and CYP3A4 substrates detailed in protocol
17.Inability to be venipunctured and/or tolerate venous access.
18.Inability to swallow the required number of IMP capsules.
19.Present or historic use of anabolic steroids.
20.History of severe allergy/hypersensitivity or on-going allergy/hypersensitivity or history of hypersensitivity to drugs with a similar chemical structure or class to GR3027.
21.Administration of another new chemical entity (or has participated in any other interventional study within three months prior to administration of IMP in this study.
22.Investigator considers the subject unlikely to comply with study procedures, restrictions and requirements.



Age minimum:
Age maximum:
Gender:
Female: yes
Male: yes

Health Condition(s) or Problem(s) studied

Therapeutic area: Diseases [C] - Nervous System Diseases [C10]

Hepatic encephalopathy (HE)
MedDRA version: 20.0 Level: LLT Classification code 10014630 Term: Encephalopathy hepatic System Organ Class: 100000004852

Intervention(s)

Product Name: GR3027
Product Code: GR3027
Pharmaceutical Form: Capsule, hard
INN or Proposed INN: Not available
Other descriptive name: GR3027
Concentration unit: mg milligram(s)
Concentration type: equal
Concentration number: 10-
Pharmaceutical form of the placebo: Capsule, hard
Route of administration of the placebo: Oral use

Primary Outcome(s)

Primary end point(s): Safety will be assessed by occurrence and frequency of Adverse Events (AEs), changes in laboratory parameters, vital signs and physical examination.

Secondary Objective: Study parts A-C:
1.Multiple oral dose PK characteristics of GR3027 in healthy male volunteers.
2.Single and multiple oral dose PK characteristics of GR3027 in cirrhotic patients.
3.Metabolite profile of GR3027 in human plasma and urine.
4.Plasma protein binding in cirrhotic patients.
5.Preliminary effect on brain activity as measured by EEG.
Study part D (extended treatment):
1.Preliminary efficacy on cognitive function as measured by Portosystemic Hepatic Encephalopathy Score (PHES).
2.Preliminary efficacy on cognitive function as measured by CRT.
3.Preliminary effect on brain activity as measured by EEG.
4.Preliminary efficacy on sleepiness measured by the Epworth Sleepiness Scale (ESS).
5.Safety and tolerability of GR3027 after 21 days treatment in cirrhotic patients.
6.Exposure of GR3027 in cirrhotic patients.
7.Evaluate subjects for evidence of OHE and assess care-giver burden.
8. Assess preliminary efficacy on cognitive function, by Animal Naming Test (ANT1).

Timepoint(s) of evaluation of this end point: According to trial flow chart

Main Objective: The primary objective of the study is to evaluate the safety and tolerability of GR3027 after multiple dose administration in healthy male volunteers and after single and multiple dose administration in cirrhotic patients.

Secondary Outcome(s)

Secondary end point(s): Study parts A-C
Multiple ascending dose (MAD) cohorts:
-PK parameters after the first dose: AUC0-24h, Cmax, Tmax, lambdaz, T1/2, Vz/F, Cl/F, part A only: urine recovery (Ae) and fraction of the dose excreted in urine (Fe) for GR3027
-PK parameters after the last dose: AUC at steady-state (AUCss), Cmax, maximum and minimum concentration at steady-state (Cmax, ss and Cmin, ss), % fluctuation, Tmax, lambdaz, T1/2, CL/F, Vz/ F, part A only : Ae, Fe for GR3027.
-Accumulation ratio between first and last dose.
-Dose proportionality after multiple doses based on AUCss and Cmax, ss.
-Metabolite profile in human plasma and urine.
-Patient cohorts only: Determination of GR3027 Fub in plasma in cirrhotic patients. PK parameters will be calculated both for the total and for the unbound fraction of GR3027.
-Patient cohorts only: Change in quantified EEG automated spectral parameters (MDF and relative power of the theta and delta frequencies) on the bi-parietal and temporal-occipital derivations from baseline to 90 minutes, 180 minutes and 6-8 hours post-dose, as compared to baseline. (Patient cohorts only).

Study part D (phase IIa, extended treatment)
-Change in PHES from baseline to 10 and 21 days after start of treatment, as compared to placebo.
-Change in CRT index from baseline to 10 and 21 days after start of treatment, as compared to placebo.
-Change in quantified EEG automated spectral parameters (MDF and relative power of the theta and delta frequencies) on the bi-parietal and temporal-occipital derivations from baseline to 10 and 21 days after start of treatment.
-Change in the ESS score from baseline to 10 and 21 days’ after start of treatment, as compared to placebo.
-Occurrence and frequency of AEs, changes in laboratory parameters, vital signs and physical examination.
-Cmin will be assessed pre-dose on Days 1, 10 and 21.
-Change in care-giver QoL after 21 days’ treatment as assessed by the care-giver burden inventory questionnaire.
-Change in the ANT score from baseline to 10 and 21 day after start of treatment, as compared to placebo.

Timepoint(s) of evaluation of this end point: According to trial flow chart

Secondary ID(s)

2016-003651-30-SE

UCAB-CT-02

Source(s) of Monetary Support

Umecrine Cognition AB

Ethics review

Status: Approved
Approval date: 27/03/2018
Contact: