Overview
Sponsor-declared trial summary
Acquired Antithrombin Deficiency (Heparin Resistance)
The primary objective of this study is to evaluate the efficacy of two different doses of Atenativ, versus placebo, in restoring and maintaining heparin responsiveness in adult patients undergoing cardiac surgery necessitating cardiopulmonary bypass (CPB)
Key facts
- Sponsor
- Octapharma AG
- Participant type
- Patients
- Age range
- 18-64 years, 65+ years
- Gender
- Male and Female
- Therapeutic area
- Diseases [C] - Cardiovascular Diseases [C14]
- Trial duration
- 7 Jan 2025 → ongoing
- Decision date (initial)
- 2024-08-05
- Transition trial
- No
- Low-intervention
- No
- Rare-disease indication
- No
- Vulnerable population
- Yes
- Funding sources
- Octapharma AG
External identifiers
- EU CT number
- 2023-507560-39-00
- ClinicalTrials.gov
- NCT06096116
Trial design
CTIS Part I — objectives, methods, condition coding
Main objective
Scope: Therapy, Efficacy, Dose response, Safety
The primary objective of this study is to evaluate the efficacy of two different doses of Atenativ, versus placebo, in restoring and maintaining heparin responsiveness in adult patients undergoing cardiac surgery necessitating cardiopulmonary bypass (CPB)
Secondary objectives 10
- The amounts of further therapy containing antithrombin required for restoring heparin responsiveness before CPB and maintaining it during CPB
- The effect of Atenativ on the coagulation parameter used for evaluating heparin resistance, namely the activated clotting time (ACT)
- The capacity of Atenativ to modify the antithrombin plasma concentration
- The impact of Atenativ on the intraoperative use of heparin following the infusion of Atenativ or placebo
- Any requirement for frozen plasma (FP) or antithrombin concentrates for reasons other than restoring or maintaining heparin responsiveness, both intraoperatively and postoperatively
- Any intraoperative and postoperative use of other allogeneic blood products, coagulation factor concentrates and other haemostatic-relevant therapies
- The volume of chest tube drainage and the need for reoperation due to bleeding
- The safety of Atenativ
- Any post-CPB requirement for additional therapy containing antithrombin to restore heparin responsiveness
- The patient’s postoperative course, as assessed by length of intensive care unit (ICU) stay.
Conditions and MedDRA coding
Acquired Antithrombin Deficiency (Heparin Resistance)
| Version | Level | Code | Term | System organ class |
|---|---|---|---|---|
| 20.0 | PT | 10074561 | Acquired antithrombin III deficiency | 100000004851 |
| 20.0 | PT | 10059598 | Heparin resistance | 100000004851 |
Study design 1 period
| # | Title | Allocation | Blinding | Roles blinded | Arms |
|---|---|---|---|---|---|
| 1 | Single period of study Prospective, double-blind, three-arm, placebo-controlled, multicentre Phase 3 study
|
Randomised Controlled | Double | [{"id":180780,"code":3,"name":"Monitor"},{"id":180781,"code":1,"name":"Subject"},{"id":180782,"code":4,"name":"Analyst"},{"id":180779,"code":2,"name":"Investigator"}] | 1st cohort: One cohort will receive a single bolus of 15 international units (IU)/kg bodyweight (BW) Atenativ 2nd cohort: second cohort will receive a single bolus of 30 IU/kg BW Atenativ Placebo group: placebo group will receive a normal saline bolus |
Regulatory references
- Plan to share IPD
- No
- IPD plan description
- N/A
| EU CT number | Title | Sponsor |
|---|---|---|
| 2021-004307-40 | A multicentre, prospective, open-label, uncontrolled Phase 3 study to assess the efficacy, safety and pharmacokinetics of Atenativ in patients with congenital antithrombin deficiency undergoing surgery or delivery , Étude prospective de phase 3, multicentrique, en ouvert, non contrôlée, visant à évaluer l’efficacité, la sécurité d’emploi et la pharmacocinétique d’Atenativ chez des patients atteints d’un déficit congénital en antithrombine nécessitant une intervention chirurgicale ou un accouchement, Studio multicentrico, prospettico, in aperto, non controllato, di fase 3 per valutare l’efficacia, la sicurezza e la farmacocinetica di Atenativ in pazienti con deficit congenito di antitrombina sottoposti ad intervento chirurgico o parto., Estudio en fase III, multicéntrico, prospectivo, sin enmascaramiento y no controlado para evaluar la eficacia, la seguridad y la farmacocinética de Atenativ en pacientes con deficiencia congénita de antitrombina que se someten a cirugía o parto |
Eligibility criteria
Principal inclusion / exclusion criteria as submitted by sponsor
Inclusion criteria 5
- Planned cardiac surgery with CPB
- Heparin-resistant patients: pre-CPB Hemochron ACT less than 480 seconds in the measurement performed between 2 and 5 minutes following intravenous administration of 500 U/kg BW UFH
- Patients ≥18 and ≤85 years of age
- Freely given written or electronic informed consent
- In female patients of childbearing potential (i.e., fertile, following menarche and until becoming post-menopausal unless permanently sterile), a pre-existing negative pregnancy test within 14 days prior to surgery
Exclusion criteria 9
- Receiving or have received one or more of the following medications within the specified time frames prior to the start of the surgery: a) vitamin K antagonists (within 3 days) b) direct oral anticoagulants (within 2 days) c) thienopyridines (ticlopidine within 14 days, prasugrel within 7 days, or clopidogrel within 5 days), unless platelet function is satisfactory d) ticagrelor (within 5 days), unless platelet function is satisfactory e) glycoprotein IIb/IIIa antagonist (within 24 hours)
- Pre-existing coagulopathy, a history of bleeding problems or a laboratory-diagnosed bleeding disorder (e.g., von Willebrand disease, platelet disorder)
- Renal insufficiency, defined as serum creatinine level >2.0 mg/dL
- Thrombocytosis, defined as platelet count >400,000 per µL
- Known hypersensitivity or allergic reaction to antithrombin or any of the excipients in Atenativ, i.e., human albumin, sodium chloride, acetyl tryptophan and caprylic acid
- History of anaphylactic reaction(s) to blood or blood components
- Refusal to receive transfusion of blood or blood-derived products
- Current participation in another interventional clinical trial with an investigational medicinal product (IMP) or previous participation in the current trial
- Treatment with any IMP within 30 days prior to screening visit
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 1
- The primary efficacy endpoint is the percentage of patients in each group in whom no further therapy containing antithrombin (i.e., FP or other antithrombin concentrates) is needed for restoring pre-CPB heparin responsiveness after administration of Atenativ or placebo, and for maintaining it during CPB.
Secondary endpoints 17
- The comparison between the amounts of further therapy containing antithrombin (i.e., FP or antithrombin concentrates) needed for restoring pre-CPB heparin responsiveness after administration of Atenativ or placebo, and for maintaining it during CPB
- The comparison between the change in ACT values following infusion of each of the Atenativ doses and placebo
- The comparison between the change in antithrombin plasma levels following infusion of each of the Atenativ doses and placebo
- The comparison between heparin usage following the infusion of each of the Atenativ doses and placebo
- The comparison between the number of units of FP transfused for reasons other than restoring or maintaining heparin responsiveness, both intraoperatively (from the start of Atenativ or placebo infusion until the start of CPB, during CPB, and from the end of CPB until the end of surgery) and postoperatively (from the end of surgery until 24 hours after the start of Atenativ or placebo infusion and until discharge or 7 days after surgery, whichever comes first), as well as cumulatively
- The comparison between postoperative use of antithrombin concentrates for reasons other than restoring heparin responsiveness (from the end of surgery until 24 hours after the start of Atenativ or placebo infusion and until discharge or 7 days after surgery, whichever comes first)
- The comparison between transfusion of other allogeneic blood products (i.e., red blood cells [RBCs], platelets, cryoprecipitate, whole blood, albumin, other transfusion), both intraoperatively and postoperatively, as well as cumulatively
- The comparison between administration of coagulation factor concentrates (fibrinogen concentrate, prothrombin complex concentrate (PCC), factor XIII concentrate, recombinant activated factor VII, other therapy), both intraoperatively and postoperatively, as well as cumulatively
- The comparison between administration of other haemostatic-relevant therapies (i.e., tranexamic acid, aminocaproic acid, protamine, other therapies), both intraoperatively and postoperatively, as well as cumulatively
- The comparison between postoperative chest tube drainage volume at 24 hours after the start of Atenativ or placebo infusion, and the comparison between total chest tube drainage volume until discharge or 7 days after surgery, whichever comes first
- Comparison of the need for reoperation for bleeding, including description of the cause of bleeding (surgical vs. non-surgical)
- The comparison between cell saver volume until the end of surgery
- Incidence of AEs in the three study groups
- Standard haematological parameters (i.e., RBC count, white blood cell count, haemoglobin levels, haematocrit, and platelet count) following Atenativ or placebo infusion, after the end of CPB, at the end of surgery, and at 24 hours after the start of Atenativ or placebo infusion
- Survival status in the different treatment groups.
- The comparison between the amounts of further therapy containing antithrombin (i.e., FP or antithrombin concentrates) needed for restoring heparin responsiveness from the end of CPB until 24 hours after start of Atenativ or placebo infusion and from the end of CPB until discharge or 7 days postoperatively, whichever comes first
- Comparison of the length of ICU stay between treatment groups.
Investigational products
Investigational medicinal products (IMPs), comparators, placebo, auxiliary
Test 12
Atenativ 50 IU/ml prášek a rozpouštědlo pro infuzní roztok
PRD310993 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 16/266/08-C
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Czech Republic
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
ATENATIV 50 UI/mL, poudre et solvant pour solution pour perfusion
PRD7931239 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 34009 302 019 5 4
- MA holder
- OCTAPHARMA FRANCE
- MA country
- France
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 1000 I.E. - Pulver und Lösungsmittel zur Herstellung einer Injektions- oder Infusionslösung
PRD323707 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INJECTION/INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 2-00081
- MA holder
- OCTAPHARMA PHARMAZEUTIKA PRODUKTIONSGESMBH
- MA country
- Austria
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 50 UI/ml pulbere și solvent pentru soluție perfuzabilă
PRD7917885 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 12981/2020/01
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Romania
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ, 50 IU/ml, práek a rozpoutědlo pro infuzní roztok
PRD310992 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 16/266/08-C
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Czech Republic
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 50 TV/ml milteliai ir tirpiklis infuziniam tirpalui
PRD7865088 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- LT/1/20/4501/001
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Lithuania
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 50 TV/ml milteliai ir tirpiklis infuziniam tirpalui
PRD7865089 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- LT/1/20/4501/002
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Lithuania
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 50 UI/ml pulbere și solvent pentru soluție perfuzabilă
PRD7917884 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 12981/2020/02
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Romania
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 500 I.E. - Pulver und Lösungsmittel zur Herstellung einer Injektions- oder Infusionslösung
PRD323709 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INJECTION/INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 2-00080
- MA holder
- OCTAPHARMA PHARMAZEUTIKA PRODUKTIONSGESMBH
- MA country
- Austria
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 50 i.e./ml praek in vehikel za raztopino za infundiranje
PRD7798655 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- H/19/02679/001
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Slovenia
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
ATENATIV 50 UI/mL, poudre et solvant pour solution pour perfusion
PRD7931238 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- 34009 302 019 4 7
- MA holder
- OCTAPHARMA FRANCE
- MA country
- France
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Atenativ 50 i.e./ml praek in vehikel za raztopino za infundiranje
PRD7798656 · Product
- Active substance
- Antithrombin Iii Human
- Substance synonyms
- HUMAN ANTITHROMBIN III
- Pharmaceutical form
- SOLUTION FOR INFUSION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 60 IU/kg international unit(s)/kilogram
- Max total dose
- 60 IU/kg international unit(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- B01AB02 — ANTITHROMBIN III
- Marketing authorisation
- H/19/02679/002
- MA holder
- OCTAPHARMA (IP) SPRL
- MA country
- Slovenia
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Placebo 1
Isotone Natriumchloridlösung 0,9 % Braun Injektionslösung
PRD567881 · Product
- Active substance
- Sodium Chloride
- Substance synonyms
- SODIUM CHLORID
- Pharmaceutical form
- SOLUTION FOR INJECTION
- Route of administration
- INTRAVENOUS
- Max daily dose
- 1.2 millilitre(s)/kilogram
- Max total dose
- 1.2 millilitre(s)/kilogram
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- V07AB — SOLVENTS AND DILUTING AGENTS, INCL. IRRIGATING SOLUTIONS
- Marketing authorisation
- 6697366.00.00
- MA holder
- B.BRAUN MELSUNGEN AG
- MA country
- Germany
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Sponsors and contacts
Sponsor organisations, regulatory contacts, third parties
Octapharma AG
- Sponsor organisation
- Octapharma AG
- Address
- Seidenstrasse 2
- City
- Lachen Sz
- Postcode
- 8853
- Country
- Switzerland
Scientific contact point
- Organisation
- Octapharma AG
- Contact name
- Sigurd Knaub
Public contact point
- Organisation
- Octapharma AG
- Contact name
- Sigurd Knaub
Third parties 7
| Organisation | City, country | Duties |
|---|---|---|
| Octapharma Dessau GmbH ORG-100004022
|
Dessau-Rosslau, Germany | Code 14 |
| Comac Medical Ltd. ORG-100026829
|
Sofia, Bulgaria | On site monitoring, Code 12, Code 13, Code 2, Code 5 |
| Clinigen Clinical Supplies Management GmbH ORG-100016915
|
Schwalbach Am Taunus, Germany | Code 14 |
| GBA Central Lab Services GmbH ORG-100017343
|
Schwentinental, Germany | Laboratory analysis |
| GxP Brain GmbH ORG-100044722
|
Berlin, Germany | Interactive response technologies (IRT) |
| Metronomia Clinical Research GmbH ORG-100012892
|
Munich, Germany | Code 10, Data management, E-data capture |
| Optimapharm d.o.o. ORG-100042749
|
Zagreb, Croatia | On site monitoring, Code 12, Code 13, Code 2, Code 5, Code 8 |
Locations
8 EU/EEA countries · 15 investigational sites
By country
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| Austria | Ongoing, recruiting | 7 | 2 |
| Czechia | Ongoing, recruiting | 13 | 2 |
| France | Ended | 1 | 2 |
| Lithuania | Ongoing, recruiting | 5 | 2 |
| Poland | Authorised, recruitment pending | 6 | 2 |
| Romania | Ongoing, recruiting | 4 | 1 |
| Slovenia | Ongoing, recruiting | 4 | 1 |
| Spain | Authorised, recruitment pending | 13 | 3 |
| Rest of world
United States, Serbia, United Kingdom, Canada, Kazakhstan, Turkey
|
— | 89 | — |
Investigational sites
Country notifications
Trial-start, recruitment-start, end and early-termination notifications submitted per Member State
| Country | Trial start | Trial end | Recruitment start | Recruitment end | Early termination |
|---|---|---|---|---|---|
| Austria | 2024-11-20 | 2024-11-26 | |||
| Czechia | 2024-12-09 | 2024-12-11 | |||
| France | 2025-01-07 | 2025-03-17 | 2025-08-08 | ||
| Lithuania | 2024-12-20 | 2025-02-05 | |||
| Romania | 2025-01-21 | 2025-01-21 | |||
| Slovenia | 2024-11-07 | 2025-02-06 |
Oversight and notifications
Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77
Temporary halts 6 · Art. 38 CTR
Temporary halt TH-94871
- Halt date
- 2025-08-08
- Member states concerned
- Czechia
- Publication date
- 2025-08-20
- Reason
- Sponsor decision
- Explanation
- The sponsor decided to pause the study to evaluate protocol design updates related to dosing. Final updates are pending IDMC review and recommendations.
The study is not put on hold due to safety reasons. - Benefit-risk balance changed
- No
- Treatment stopped
- No
Temporary halt TH-94873
- Halt date
- 2025-08-08
- Member states concerned
- France
- Publication date
- 2025-08-20
- Reason
- Sponsor decision
- Explanation
- The sponsor decided to pause the study to evaluate protocol design updates related to dosing. Final updates are pending IDMC review and recommendations.
The study is not put on hold due to safety reasons. - Benefit-risk balance changed
- No
- Treatment stopped
- No
Temporary halt TH-94875
- Halt date
- 2025-08-08
- Member states concerned
- Lithuania
- Publication date
- 2025-08-20
- Reason
- Sponsor decision
- Explanation
- The sponsor decided to pause the study to evaluate protocol design updates related to dosing. Final updates are pending IDMC review and recommendations.
The study is not put on hold due to safety reasons. - Benefit-risk balance changed
- No
- Treatment stopped
- No
Temporary halt TH-94877
- Halt date
- 2025-08-08
- Member states concerned
- Romania
- Publication date
- 2025-08-20
- Reason
- Sponsor decision
- Explanation
- The sponsor decided to pause the study to evaluate protocol design updates related to dosing. Final updates are pending IDMC review and recommendations.
The study is not put on hold due to safety reasons. - Benefit-risk balance changed
- No
- Treatment stopped
- No
Temporary halt TH-94869
- Halt date
- 2025-08-08
- Member states concerned
- Austria
- Publication date
- 2025-08-20
- Reason
- Sponsor decision
- Explanation
- The sponsor decided to pause the study to evaluate protocol design updates related to dosing. Final updates are pending IDMC review and recommendations.
The study is not put on hold due to safety reasons. - Benefit-risk balance changed
- No
- Treatment stopped
- No
Temporary halt TH-94879
- Halt date
- 2025-08-08
- Member states concerned
- Slovenia
- Publication date
- 2025-08-20
- Reason
- Sponsor decision
- Explanation
- The sponsor decided to pause the study to evaluate protocol design updates related to dosing. Final updates are pending IDMC review and recommendations.
The study is not put on hold due to safety reasons. - Benefit-risk balance changed
- No
- Treatment stopped
- No
Results and documents
Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial
Documents 42 files
Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.
| Type | Title | Version |
|---|---|---|
| Protocol (for publication) | D1_Protocol amendment_2023-507560-39_redacted | 07 |
| Protocol (for publication) | D1_Protocol_2023-507560-39_redacted | 09 |
| Recruitment arrangements (for publication) | K1_Recruitment and informed consent procedure | NA |
| Recruitment arrangements (for publication) | K1_Recruitment and informed consent procedure | NA |
| Recruitment arrangements (for publication) | K1_Recruitment and informed consent procedure | NA |
| Recruitment arrangements (for publication) | K1_Recruitment arrangements | NA |
| Recruitment arrangements (for publication) | K1_Recruitment arrangements | N/A |
| Recruitment arrangements (for publication) | K1_Recruitment arrangements_FR_unredacted | NA |
| Recruitment arrangements (for publication) | K1_Recruitment Arrangements_PL | 2.0 |
| Recruitment arrangements (for publication) | K1_Recruitment arrangements_Public | NA |
| Subject information and informed consent form (for publication) | L1_SIS and ICF | 1.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF Main_PL | 2.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF Main_Public | 4.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF Secondary Use Data_Public | 2.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_Contact details | NA |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_GDPR_unredacted | 2.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_Main | 3.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_Main_FR_unredacted | 5.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_Main_unredacted | 4.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_Main_unredacted | 3.0 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF_Main_unredacted | 5.0 |
| Subject information and informed consent form (for publication) | L2_ATN-108_Patient Card_Public | 1.0 |
| Subject information and informed consent form (for publication) | L2_Other subject information material_patient card | 1.0 |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_CZ | NA |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_DE AT | NA |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_EN | NA |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_FR | NA |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_LT | NA |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_RO | NA |
| Summary of Product Characteristics (SmPC) (for publication) | E2_SmPC_Atenativ_SI | NA |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis full_DE_2023-507560-39_06 | 06 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis full_DE_2023-507560-39_09 | 09 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis full_LT_2023-507560-39 | 06 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_CZ_2023-507560-39 | 2.0 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_DE AT_2023-507560-39 | 2.0 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_EN_2023-507560-39 | 2.0 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_ES_2023-507560-39 | 09 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_FR_2023-507560-39 | 2.0 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_full LT_2023-507560-39 | 09 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_LT_2023-507560-39 | 2.0 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_RO_2023-507560-39 | 2.0 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis_SI_2023-507560-39 | 2.0 |
Application history
11 submissions — initial application plus substantial / non-substantial modifications
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision date |
|---|---|---|---|---|---|---|
| 1 | INITIAL | IN | 2024-04-15 | Czechia | Acceptable with conditions 2024-08-01
|
2024-08-01 |
| 2 | SUBSTANTIAL MODIFICATION | SM-1 | 2024-08-29 | Acceptable with conditions | 2024-09-20 | |
| 3 | SUBSTANTIAL MODIFICATION | SM-2 | 2024-10-29 | Czechia | Acceptable 2025-02-13
|
2025-02-14 |
| 4 | NON SUBSTANTIAL MODIFICATION | NSM-1 | 2025-02-21 | Czechia | Acceptable 2025-02-13
|
2025-02-21 |
| 5 | NON SUBSTANTIAL MODIFICATION | NSM-2 | 2025-04-03 | Czechia | Acceptable 2025-02-13
|
2025-04-03 |
| 6 | SUBSTANTIAL MODIFICATION | SM-3 | 2025-04-11 | Czechia | Acceptable with conditions 2025-07-21
|
2025-07-21 |
| 7 | NON SUBSTANTIAL MODIFICATION | NSM-3 | 2025-08-01 | Acceptable with conditions 2025-07-21
|
2025-08-01 | |
| 8 | SUBSTANTIAL MODIFICATION | SM-4 | 2025-09-30 | Czechia | Acceptable 2025-12-17
|
2025-12-17 |
| 9 | SUBSEQUENT ADDITION OF MSC | APP-9 | 2026-01-15 | Acceptable 2025-12-17
|
2026-04-09 | |
| 10 | SUBSEQUENT ADDITION OF MSC | APP-10 | 2026-01-21 | 2026-03-27 | ||
| 11 | NON SUBSTANTIAL MODIFICATION | NSM-4 | 2026-04-13 | Czechia | 2026-04-13 |