Clinical Trials Register

Summary
EudraCT Number:	2022-002988-30
Sponsor's Protocol Code Number:	PROFIL-2088-SIM-0032-I
National Competent Authority:	Germany - BfArM
Clinical Trial Type:	EEA CTA
Trial Status:	Ongoing
Date on which this record was first entered in the EudraCT database:	2022-12-06
Trial results

Index
A. PROTOCOL INFORMATION
B. SPONSOR INFORMATION
C. APPLICANT IDENTIFICATION
D. IMP IDENTIFICATION
D.8 INFORMATION ON PLACEBO
E. GENERAL INFORMATION ON THE TRIAL
F. POPULATION OF TRIAL SUBJECTS
G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
P. END OF TRIAL

Expand All Collapse All

A. Protocol Information

A.1

Member State Concerned

Germany - BfArM

A.2

EudraCT number

2022-002988-30

A.3

Full title of the trial

Double-blind, randomised, prospective, placebo controlled parallel group phase II study to investigate the effect of glycerol phenylbutyrate (GPB) on neurofilament light chain (NfL) levels in patients with corticobasal syndrome (CBS)

A.3.1

Title of the trial for lay people, in easily understood, i.e. non-technical, language

A.3.2

Name or abbreviated title of the trial where available

PROFIL

A.4.1

Sponsor's protocol code number

PROFIL-2088-SIM-0032-I

A.7

Trial is part of a Paediatric Investigation Plan

A.8

EMA Decision number of Paediatric Investigation Plan

B. Sponsor Information
B.Sponsor: 1
B.1.1	Name of Sponsor	Klinikum rechts der Isar der Technischen Universität München
B.1.3.4	Country	Germany
B.3.1 and B.3.2	Status of the sponsor	Non-Commercial
B.4 Source(s) of Monetary or Material Support for the clinical trial:
B.4.1	Name of organisation providing support	Klinikum rechts der Isar der Technischen Universität München
B.4.2	Country	Germany
B.5 Contact point designated by the sponsor for further information on the trial
B.5.1	Name of organisation	Technische Universität München, Fakultät für Medizin, Münchner Studienzentrum
B.5.2	Functional name of contact point	Helen Bidner
B.5.3	Address:
B.5.3.1	Street Address	Ismaninger Str.22
B.5.3.2	Town/ city	Munich
B.5.3.3	Post code	81675
B.5.3.4	Country	Germany
B.5.4	Telephone number	00498941406312
B.5.5	Fax number	00498941406322
B.5.6	E-mail	helen.bidner@mri.tum.de

D. IMP Identification
D.IMP: 1
D.1.2 and D.1.3	IMP Role	Test
D.2	Status of the IMP to be used in the clinical trial
D.2.1	IMP to be used in the trial has a marketing authorisation	Yes
D.2.1.1.1	Trade name	RAVICTI
D.2.1.1.2	Name of the Marketing Authorisation holder	Immedica Pharma AB
D.2.1.2	Country which granted the Marketing Authorisation	Sweden
D.2.5	The IMP has been designated in this indication as an orphan drug in the Community	No
D.2.5.1	Orphan drug designation number
D.3 Description of the IMP
D.3.4	Pharmaceutical form	Oral solution in bottle
D.3.4.1	Specific paediatric formulation	No
D.3.7	Routes of administration for this IMP	Oral use
D.3.8 to D.3.10 IMP Identification Details (Active Substances)
D.3.8	INN - Proposed INN	Glycerol phenylbutyrate
D.3.9.1	CAS number	611168-24-2
D.3.9.4	EV Substance Code	SUB96043
D.3.10	Strength
D.3.10.1	Concentration unit	g/ml gram(s)/millilitre
D.3.10.2	Concentration type	equal
D.3.10.3	Concentration number	1,1
D.3.11 The IMP contains an:
D.3.11.1	Active substance of chemical origin	Yes
D.3.11.2	Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP)	No
	The IMP is a:
D.3.11.3	Advanced Therapy IMP (ATIMP)	No
D.3.11.3.1	Somatic cell therapy medicinal product	No
D.3.11.3.2	Gene therapy medical product	No
D.3.11.3.3	Tissue Engineered Product	No
D.3.11.3.4	Combination ATIMP (i.e. one involving a medical device)	No
D.3.11.3.5	Committee on Advanced therapies (CAT) has issued a classification for this product	No
D.3.11.4	Combination product that includes a device, but does not involve an Advanced Therapy	No
D.3.11.5	Radiopharmaceutical medicinal product	No
D.3.11.6	Immunological medicinal product (such as vaccine, allergen, immune serum)	No
D.3.11.7	Plasma derived medicinal product	No
D.3.11.8	Extractive medicinal product	No
D.3.11.9	Recombinant medicinal product	No
D.3.11.10	Medicinal product containing genetically modified organisms	No
D.3.11.11	Herbal medicinal product	No
D.3.11.12	Homeopathic medicinal product	No
D.3.11.13	Another type of medicinal product	No

D.8 Information on Placebo
D.8 Placebo: 1
D.8.1	Is a Placebo used in this Trial?	Yes
D.8.3	Pharmaceutical form of the placebo	Oral solution in bottle
D.8.4	Route of administration of the placebo	Oral use

E. General Information on the Trial

E.1 Medical condition or disease under investigation

E.1.1

Medical condition(s) being investigated

Corticobasal Syndrome (CBS)

E.1.1.1

Medical condition in easily understood language

Corticobasal Syndrome (CBS)

E.1.1.2

Therapeutic area

Diseases [C] - Nervous System Diseases [C10]

MedDRA Classification

E.1.2 Medical condition or disease under investigation

E.1.2	Version	20.0
E.1.2	Level	PT
E.1.2	Classification code	10078208
E.1.2	Term	Corticobasal degeneration
E.1.2	System Organ Class	10029205 - Nervous system disorders

E.1.3

Condition being studied is a rare disease

E.2 Objective of the trial

E.2.1

Main objective of the trial

To assess the efficacy of glycerol phenylbutyrate vs. placebo in reducing the levels of neurofilament light chain (NfL) during 26 weeks of exposure to glyc-erol phenylbutyrate as well as safety and tolerability of glycerol phenylbutyrate in patients with CBS.

E.2.2

Secondary objectives of the trial

To assess longitudinal changes in clinical scales (MDS-UPDRS Part III, PSP-RS, PSP-CDS, CBFS, DATE, MoCA, SEADL, CGI-s, PSP-QoL) between V1 and V3 comparing placebo- vs. verum-treated patients

E.2.3

Trial contains a sub-study

E.3

Principal inclusion criteria

1. Age: ≥ 18 years
2. „clinical possible“ or „clinical probable“ CBS (Armstrong et al., Neurol-ogy, 2013 80;496-503) and patients with Progressive Supranuclear Palsy-CBS according to Höglinger et al. (Mov Disord. 2017 Jun;32(6):853-864)
3. No regular consumption of glycerol phenylbutyrate within the last 6 months prior to V1
4. Capable of thoroughly understanding all information given and giving full informed consent according to GCP
5. Capability and willingness to comply with the procedures of the clini-cal trial
6. Women of childbearing age must be non-lactating and surgically ster-ile or using a highly effective method of birth control and have a nega-tive pregnancy test. In case of using a hormonal contraception, the method must be sup-plemented with a barrier method (preferably male condom). Acceptable methods of birth control with a low failure rate i.e. less than 1% per year when used consistently and cor-rect are such as implants, injectables, combined oral contraceptives, hormonal intrauterine devices (IUDs), sexual abstinence (defined as refraining from heterosexual intercourse during the clinical trial) or vasecto-mized partner. Unacceptable birth control methods are: periodic abstinence (calen-dar, symptothermal, post-ovulation methods), withdrawal (coitus inter-ruptus), spermicides only and lactational amenorrhoea method (LAM). Female condom and male condom should not be used together.
7. A stable regimen for at least 1 month prior to V1 and no foreseeable need to change the regimen throughout the 26 week treatment period for
a. drugs acting against Parkinsonism (e.g. Levodopa, Dopa-mine-Agonists, Amantadine and MAO-B-Inhibitors)
b. other CNS-active substances including e.g. antidepressants and antidementia drugs

E.4

Principal exclusion criteria

1. Neurodegenerative diseases other than CBS
2. Underlying Alzheimer’s pathology as defined by positive β-amyloid-PET or reduced Aβ 1-42 in CSF
3. Participation in another clinical trial involving administration of an in-vestigational medicinal product within 1 month or 5 half-lives of the investigational medicinal product, whichever is longer, prior to V1
4. Known hypersensitivity to glycerol phenylbutyrate or its further components, or to drugs with a similar chemical structure or to any of the components of the placebo
5. Treatment with valproic acid, haloperidol or probenecid
6. A physical or psychiatric condition (e.g. frontal lobe syndrome, psychotic disorder or major depression), which at the investigator’s discre-tion may put the subject at risk, may confound the trial results or may interfere with the subject’s participation in this clinical trial
7. Persistent abuse of medication, drugs or alcohol
8. Current or planned pregnancy or breast-feeding in females
9. Other severe medical conditions upon the discretion of the investiga-tor

E.5 End points

E.5.1

Primary end point(s)

Primary efficacy endpoint: The primary outcome measure will be the longitudinal change of NfL in plasma between V1 and V3 comparing GPB vs. Placebo-treated pa-tients.
Primary Endpoints for Safety and Tolerability:
Safety
• Incidence of specific AEs
• Safety laboratory values (basic clinical chemistry)
• Vital signs (blood pressure, heart rate, temperature)
• Physical and neurological examination
• Survival time and survival rate during the study period
Tolerability
• Number of subjects (and % of the intention-to-treat population), who discontinue the clinical trial due to adverse reactions

E.5.1.1

Timepoint(s) of evaluation of this end point

between V1 and V3

E.5.2

Secondary end point(s)

Longitudinal changes in clinical scales (MDS-UPDRS Part III, PSP-RS, PSP-CDS, CBFS, DATE, MoCA, SEADL, CGI-s, PSP-QoL) between V1 and V3 comparing placebo- vs. verum-treated patients

E.5.2.1

Timepoint(s) of evaluation of this end point

between V1 and V3

E.6 and E.7 Scope of the trial

E.6

Scope of the trial

E.6.1

Diagnosis

E.6.2

Prophylaxis

E.6.3

Therapy

E.6.4

Safety

Yes

E.6.5

Efficacy

Yes

E.6.6

Pharmacokinetic

E.6.7

Pharmacodynamic

E.6.8

Bioequivalence

E.6.9

Dose response

Yes

E.6.10

Pharmacogenetic

E.6.11

Pharmacogenomic

E.6.12

Pharmacoeconomic

E.6.13

Others

E.7

Trial type and phase

E.7.1

Human pharmacology (Phase I)

E.7.1.1

First administration to humans

E.7.1.2

Bioequivalence study

E.7.1.3

Other

E.7.1.3.1

Other trial type description

E.7.2

Therapeutic exploratory (Phase II)

Yes

E.7.3

Therapeutic confirmatory (Phase III)

E.7.4

Therapeutic use (Phase IV)

E.8 Design of the trial

E.8.1

Controlled

Yes

E.8.1.1

Randomised

Yes

E.8.1.2

Open

E.8.1.3

Single blind

E.8.1.4

Double blind

Yes

E.8.1.5

Parallel group

Yes

E.8.1.6

Cross over

E.8.1.7

Other

E.8.2

Comparator of controlled trial

E.8.2.1

Other medicinal product(s)

E.8.2.2

Placebo

Yes

E.8.2.3

Other

E.8.2.4

Number of treatment arms in the trial

E.8.3

The trial involves single site in the Member State concerned

E.8.4

The trial involves multiple sites in the Member State concerned

Yes

E.8.4.1

Number of sites anticipated in Member State concerned

E.8.5

The trial involves multiple Member States

E.8.6 Trial involving sites outside the EEA

E.8.6.1

Trial being conducted both within and outside the EEA

E.8.6.2

Trial being conducted completely outside of the EEA

E.8.7

Trial has a data monitoring committee

Yes

E.8.8

Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial

final analyses of primary endpoint

E.8.9 Initial estimate of the duration of the trial

E.8.9.1

In the Member State concerned years

E.8.9.1

In the Member State concerned months

E.8.9.1

In the Member State concerned days

F. Population of Trial Subjects

F.1 Age Range

F.1.1

Trial has subjects under 18

F.1.1.1

In Utero

F.1.1.2

Preterm newborn infants (up to gestational age < 37 weeks)

F.1.1.3

Newborns (0-27 days)

F.1.1.4

Infants and toddlers (28 days-23 months)

F.1.1.5

Children (2-11years)

F.1.1.6

Adolescents (12-17 years)

F.1.2

Adults (18-64 years)

Yes

F.1.2.1

Number of subjects for this age range:

F.1.3

Elderly (>=65 years)

Yes

F.1.3.1

Number of subjects for this age range:

F.2 Gender

F.2.1

Female

Yes

F.2.2

Male

Yes

F.3 Group of trial subjects

F.3.1

Healthy volunteers

F.3.2

Patients

Yes

F.3.3

Specific vulnerable populations

Yes

F.3.3.1

Women of childbearing potential not using contraception

F.3.3.2

Women of child-bearing potential using contraception

Yes

F.3.3.3

Pregnant women

F.3.3.4

Nursing women

F.3.3.5

Emergency situation

F.3.3.6

Subjects incapable of giving consent personally

F.3.3.7

Others

F.4 Planned number of subjects to be included

F.4.1

In the member state

F.5

Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)

None. Post Trial Treatment will follow standard of care

G. Investigator Networks to be involved in the Trial

N. Review by the Competent Authority or Ethics Committee in the country concerned

Competent Authority Decision

Authorised

Date of Competent Authority Decision

2023-03-28

Ethics Committee Opinion of the trial application

Favourable

Ethics Committee Opinion: Reason(s) for unfavourable opinion

Date of Ethics Committee Opinion

2023-04-19

P. End of Trial
P.	End of Trial Status	Ongoing

Select Country:	Select Age Range:
Select Trial Status:	Select Trial Phase:
Select Gender:
Select Date Range: to
Select Rare Disease:
IMP with orphan designation in the indication
Orphan Designation Number:
Results Status:
Clear advanced search filters

Austria
Belgium
Bulgaria
Croatia
Cyprus
Czechia
Denmark
Estonia
Finland
France
Germany
Greece
Hungary
Iceland
Ireland
Italy
Latvia
Liechtenstein
Lithuania
Luxembourg
Malta
Netherlands
Norway
Poland
Portugal
Romania
Slovakia
Slovenia
Spain
Sweden
United Kingdom
Outside EU/EEA

Clinical trials