A Study to Find Out How Nusinersen is Processed in the Body When Given Through the ThecaFlex DRx™ System in Adult and Pediatric Participants With Spinal Muscular Atrophy (PIERRE-PK)

2024-514239-21-00 Protocol 295SM101 Human pharmacology (Phase I) - Other Authorised, recruiting

Start 21 May 2025 · Status Authorised, recruiting · 5 EU/EEA countries · 12 sites · Protocol 295SM101

Overview

Sponsor-declared trial summary

Phase Human pharmacology (Phase I) - Other
Status Authorised, recruiting
Participants planned 58
Countries 5
Sites 12

Spinal Muscular Atrophy

The main objective of the PIERRE-PK study is to learn how the body processes nusinersen when given by the ThecaFlex DRx system compared to a lumbar puncture. The main questions researchers want to answer are: • What is the highest amount of nusinersen found in the blood after dosing? • How much nusinersen is found i…

Key facts

Sponsor
Biogen Idec Research Limited
Participant type
Pediatric, Patients
Age range
0-17 years, 18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Musculoskeletal Diseases [C05]
Trial duration
21 May 2025 → ongoing
Decision date (initial)
2025-05-14
Transition trial
No
Low-intervention
No
Rare-disease indication
Yes
Vulnerable population
Yes
Funding sources
Biogen Idec Research Limited

External identifiers

EU CT number
2024-514239-21-00
ClinicalTrials.gov
NCT06555419

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Pharmacokinetic

The main objective of the PIERRE-PK study is to learn how the body processes nusinersen when given by the ThecaFlex DRx system compared to a lumbar puncture. The main questions researchers want to answer are:
• What is the highest amount of nusinersen found in the blood after dosing?
• How much nusinersen is found in the blood over the first 24 hours after dosing?

Conditions and MedDRA coding

Spinal Muscular Atrophy

VersionLevelCodeTermSystem organ class
20.0 SOC 10010331 Congenital familial and genetic disorders 21

Regulatory references

Scientific advice from competent authorities
European Medicines Agency
Plan to share IPD
Yes
IPD plan description
In accordance with Biogen's Clinical Trial Transparency and Data Sharing Policy on https://www.biogentrialtransparency.com/

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 2

  1. Participant is on regular maintenance dosing of nusinersen (12 milligrams [mg] dose) every 4 months, with 4 months (± 2 weeks) between the LP-delivered study dose and the last nusinersen dose prior to study enrollment.
  2. Participants must be enrolled in the PIERRE study to be eligible for enrolment in the PIERRE PK study.

Exclusion criteria 5

  1. Ongoing participation or participation within 6 months or 5 half-lives of the agent (whichever is longer) of enrolment in other interventional clinical trials for the treatment of SMA (except for the PIERRE study or interventional clinical trials of myostatin inhibitors [e.g., apitegromab and taldefgrobep alfa]).
  2. Participant is naïve to nusinersen treatment.
  3. Participant is receiving nusinersen at a dose other than 12 mg.
  4. Participant has already undergone implantation of the ThecaFlex DRx system.
  5. Participant is pregnant, currently breastfeeding, or intending to become pregnant during the study. NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 2

  1. Maximum Observed Concentration (Cmax) of Nusinersen Delivered via Standard LP and via ThecaFlex DRx System.
  2. Area Under the Plasma Concentration-Time Curve From Zero Time to 24 Hours After Intrathecal Administration (AUC0-24h) of Nusinersen Delivered via Standard LP and via ThecaFlex DRx System

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

Spinraza 12 mg solution for injection

PRD5055458 · Product

Active substance
Nusinersen
Substance synonyms
ISIS 396443, ANTISENSE OLIGONUCLEOTIDE TARGETED TO THE SMN2 GENE, ISIS-396443, BIIB058
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRATHECAL USE
Authorisation status
Authorised
ATC code
M09AX07 — -
Marketing authorisation
EU/1/17/1188/001
MA holder
BIOGEN NETHERLANDS B.V.
MA country
EU
Paediatric formulation
No
Orphan designation
Yes
Orphan designation number
EU/3/12/976
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Biogen Idec Research Limited

Sponsor organisation
Biogen Idec Research Limited
Address
Building 5 Foundation Park, Roxborough Way Roxborough Way
City
Maidenhead
Postcode
SL6 3UD
Country
United Kingdom

Scientific contact point

Organisation
Biogen Idec Research Limited
Contact name
Clinical Trials Information Desk

Public contact point

Organisation
Biogen Idec Research Limited
Contact name
Clinical Trials Information Desk

Third parties 8

OrganisationCity, countryDuties
Suvoda LLC
ORG-100043523
Conshohocken, United States Interactive response technologies (IRT)
Almac Clinical Services Limited
ORG-100017464
Craigavon, United Kingdom (Northern Ireland) Other
Praxis Communications LLC
ORG-100045170
Buffalo, United States Other
PPD Development LP
ORG-100011560
Richmond, United States Other, Laboratory analysis
IQVIA Limited
ORG-100008655
Reading, United Kingdom Code 12, Code 5
Azenta Germany GmbH
ORG-100022621
Griesheim, Germany Other
Greenphire LLC
ORG-100041621
King Of Prussia, United States Other
PPD Global Central Labs
ORG-100046496
Zaventem, Belgium Laboratory analysis

Locations

5 EU/EEA countries · 12 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Authorised, recruitment pending 3 2
Germany Authorised, recruitment pending 3 2
Italy Ended 6 2
Poland Authorised, recruitment pending 7 2
Spain Ongoing, recruiting 7 4
Rest of world
United States, United Kingdom
32

Investigational sites

France

2 sites · Authorised, recruitment pending
Centre Hospitalier Regional De Marseille
Pédiatrie, 264 Rue Saint Pierre, 13005, Marseille
Assistance Publique Hopitaux De Paris
Pédiatrie, 104 Boulevard Raymond Poincare, 92380, Garches

Germany

2 sites · Authorised, recruitment pending
Universitaetsklinikum Essen AöR
Klinik fuer Neurologie, Hufelandstrasse 55, Holsterhausen, Essen
Klinikum der Technischen Universitaet Muenchen (TUM Klinikum)
Department of Neurology, Ismaninger Strasse 22, Au-Haidhausen, Munich

Italy

2 sites · Ended
Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Unità di Fase I - Unità Operativa Complessa di Neuropsichiatria Infantile, Largo Francesco Vito 1, 00168, Rome
Centro Clinico Nemo
Clinical Research Center Fase I, Piazza Dell'ospedale Maggiore 3, 20162, Milan

Poland

2 sites · Authorised, recruitment pending
Instytut Centrum Zdrowia Matki Polki
N/A, Ul. Rzgowska 281/289, 93-338, Lodz
Szpital Specjalistyczny Im. Ludwika Rydygiera W Krakowie Sp. z o.o.
N/A, Os. Zlotej Jesieni 1, 31-826, Cracow

Spain

4 sites · Ongoing, recruiting
Hospital Universitario La Paz
Neurologist, Paseo De La Castellana 261, 28046, Madrid
Hospital Universitario Y Politecnico La Fe
Neurologist, Avenida De Fernando Abril Martorell 106, 46026, Valencia
Hospital Universitario Regional De Malaga
Neurology, Avenida De Carlos De Haya S/N, 29010, Malaga
Hospital Sant Joan De Deu Barcelona
Neurology, Passeig De Sant Joan De Deu 2, 08950, Esplugues De Llobregat

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Italy 2025-05-21 2026-02-20 2025-05-21 2026-02-20
Spain 2025-05-29 2025-05-29

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Corrective measures 1 · Art. 77 CTR

Corrective measure CM-FR-0001

Member state
France
Publication date
2025-05-14
Type
3
Reason
7
Immediate action required
Yes
Justification
In line with the version 6.4 of CTR Q&A / point 1.23, the sponsor is requested to submit a specific SM Part II only in France in order to update its CTA in line with the documentation approved during the appeal procedure within 10 days after the submission of this corrective measure.

Application history

8 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-10-08 Italy Acceptable
2025-02-10
2025-02-10
2 SUBSTANTIAL MODIFICATION SM-1 2025-03-03 Acceptable 2025-03-20
3 SUBSTANTIAL MODIFICATION SM-2 2025-05-26 Acceptable 2025-07-04
4 SUBSTANTIAL MODIFICATION SM-4 2025-10-24 Italy Acceptable
2026-01-14
2026-01-14
5 NON SUBSTANTIAL MODIFICATION NSM-1 2026-03-04 Italy Acceptable
2026-01-14
2026-03-04
6 NON SUBSTANTIAL MODIFICATION NSM-2 2026-04-28 Italy Acceptable
2026-01-14
2026-04-28
7 SUBSTANTIAL MODIFICATION SM-5 2026-05-04 Acceptable 2026-05-20
8 SUBSTANTIAL MODIFICATION SM-7 2026-05-12 Acceptable 2026-05-29