NCT01478542

Brief Summary

The purpose of this study is to improve the outcome of elderly patients with CD20-Aggressive B-Cell Lymphoma and to reduce the toxicity of standard used Immuno-Chemotherapy by using an optimised schedule of the monoclonal antibody Rituximab, substituting conventional by Liposomal Vincristine and by a PET-guided reduction of therapy in Combination with Vitamin D Substitution.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,152

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Nov 2011

Longer than P75 for phase_3

Geographic Reach
1 country

127 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2011

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

November 18, 2011

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 23, 2011

Completed
12.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 18, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 18, 2024

Completed
Last Updated

January 8, 2025

Status Verified

January 1, 2025

Enrollment Period

12.2 years

First QC Date

November 18, 2011

Last Update Submit

January 6, 2025

Conditions

Keywords

DLBCLLiposomal Vincristine (Marqibo)Optimised RituximabToxicityElderly PatientsFDG-PETBulky DiseaseRadiationage >60 yearsFirst line TherapyVitamin D

Outcome Measures

Primary Outcomes (1)

  • Progression-free survival

    "OPTIMAL\>60 Less Favourable": To test the effects of substitution of conventional by liposomal vincristine and of a 2-week applications of 8x rituximab by an optimised application of 12 x rituximab stratified log rank tests will be performed for each question (stratified for IPI-factors). Proportional hazard models will be used to investigate treatment interaction and to obtain estimates for the single treatment effects (HR) adjusting for the IPI-factors. "OPTIMAL\>60 Favourable" Grade of neurotoxicity will be estimated and indicated with a 95% confidence interval (CI) separated to each type of vincristine. To investigate the 3-year PFS with 95% CI the Kaplan-Meier estimator will be used.

    9 years

Secondary Outcomes (1)

  • for efficacy: CR-rate, PR-rate, rate of primary progressions, relapse rate, EFS and OS; rate and CTC grades of PNP. Prognostic value of the FDG-PET derived imaging biomarkers for lymphoma load: SUV, MTV, TLG.

    9 years

Study Arms (6)

Favourable Prognosis F-A - Recruitment completed

ACTIVE COMPARATOR

Induction therapy with 4 cycles of R-CHOP-14 (Rituximab 375 mg/sqm, Cyclophosphamide 750 mg/sqm, Doxorubicin 50 mg/sqm, conventional Vincristine 1,4 mg/sqm \[max. 2mg absolute\], Predniso\[lo\]ne 100mg/d d1-5) and then definitive (post-induction) restaging with FDG-PET. If FDG-PET positive 2 additional cycles of R-CHOP-14 + 2xR plus additional involved-site radiotherapy, if FDG-PET negative only 4xR without radiotherapy.

Drug: Conventional Vincristine

Favourable F-B - Arm Closed

EXPERIMENTAL

Induction therapy with 4 cycles of R-CHLIP-14 (Rituximab 375 mg/sqm, Cyclophosphamide 750 mg/sqm, Doxorubicin 50 mg/sqm, liposomal Vincristine 1,4 mg/sqm (max. 2mg absolute), Predniso\[lo\]ne 100mg/d d1-5) and then definitive (post-induction) restaging with FDG-PET. If FDG-PET positive 2 additional cycles of R-CHLIP-14 + 2xR plus additional involved-site radiotherapy, if FDG-PET negative only 4xR without radiotherapy.

Drug: Liposomal Vincristine

Less Favourable LF-A - Recruitment completed

ACTIVE COMPARATOR

Induction therapy with 6 cycles of R-CHOP-14 (Rituximab 375 mg/sqm, Cyclophosphamide 750 mg/sqm, Doxorubicin 50 mg/sqm, conventional Vincristine 1,4 mg/sqm \[max. 2mg absolute\], Predniso\[lo\]ne 100mg/d d1-5) and then definitive (post-induction) restaging with FDG-PET. If FDG-PET positive 2xR plus additional radiotherapy to the initial bulky region, if FDG-PET negative only 2xR without radiotherapy. After 3xR-CHOP-14 an interim restaging will be performed.

Drug: Conventional VincristineDrug: Ricover-scheme rituximab

Less Favourable LF-B - Recruitment completed

EXPERIMENTAL

Induction therapy with 6 cycles of R-CHLIP-14 (Rituximab 375 mg/sqm, Cyclophosphamide 750 mg/sqm, Doxorubicin 50 mg/sqm, liposomal Vincristine 1,67 mg/sqm \[uncapped\], , Predniso\[lo\]ne 100mg/d d1-5) and then definitive (post-induction) restaging with FDG-PET. If FDG-PET positive 2xR plus additional radiotherapy to the initial bulky region, if FDG-PET negative only 2xR without radiotherapy. After 3xR-CHLIP-14 an interim restaging will be performed. Recruitment completed.

Drug: Liposomal VincristineDrug: Ricover-scheme rituximab

Less Favourable LF-C - Recruitment completed

EXPERIMENTAL

Induction therapy with 6 cycles of CHOP-14 (Cyclophosphamide 750 mg/sqm, Doxorubicin 50 mg/sqm, conventional Vincristine 1,4 mg/sqm \[max. 2mg absolute\], Predniso\[lo\]ne 100mg/d d1-5) combined with an optimized Rituximab-schedule (375 mg/sqm, d-4, d-1, d1, d4, d14, d28, d42, d56, d91, d126, d175, d238) and then definitive (post-induction) restaging with FDG-PET. If FDG-PET positive additional radiotherapy to the initial bulky region, if FDG-PET negative omission of radiotherapy. After 3x CHOP-14 an interim restaging will be performed. Recruitment completed.

Drug: Conventional VincristineDrug: optimised rituximab-schedule

Less Favourable LF-D - Recruitment completed

EXPERIMENTAL

Induction therapy with 6 cycles of CHLIP-14 (Cyclophosphamide 750 mg/sqm, Doxorubicin 50 mg/sqm, 1,67 mg/sqm \[uncapped\], , Predniso\[lo\]ne 100mg/d d1-5) combined with an optimised Rituximab-schedule (375 mg/sqm, d-4, d-1, d1, d4, d14, d28, d42, d56, d91, d126, d175, d238) and then definitive (post-induction) restaging with FDG-PET. If FDG-PET positive additional radiotherapy to the initial bulky region, if FDG-PET negative omission of radiotherapy. After 3x CHLIP-14 an interim restaging will be performed. Recruitment completed.

Drug: Liposomal VincristineDrug: optimised rituximab-schedule

Interventions

Favourable Prognosis F-A - Recruitment completedLess Favourable LF-A - Recruitment completedLess Favourable LF-C - Recruitment completed
Favourable F-B - Arm ClosedLess Favourable LF-B - Recruitment completedLess Favourable LF-D - Recruitment completed
Less Favourable LF-A - Recruitment completedLess Favourable LF-B - Recruitment completed
Less Favourable LF-C - Recruitment completedLess Favourable LF-D - Recruitment completed

Eligibility Criteria

Age61 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age: 61-80 years
  • All risk groups (IPI 1-5)
  • Diagnosis of aggressive CD20+ B-NHL, based on an excisional biopsy of a lymph node or on an appropriate sample of a lymph node or of an extranodal involvement. It will be possible to treat the following entities in this study as defined by the new WHO classification of 200870:
  • B-NHL:
  • Foll. lymphoma grade IIIb
  • DLBCL, not otherwise specified (NOS)
  • common morphologic variants:
  • centroblastic
  • immunoblastic
  • anaplastic
  • rare morphologic variants
  • DLBCL subtypes/entities:
  • T-cell/histiocyte-rich large B-cell lymphoma
  • primary cutaneous DLBCL, leg type
  • EBV-pos. DLBCL of the elderly
  • +12 more criteria

You may not qualify if:

  • Already initiated lymphoma therapy (except for the prephase treatment)
  • Serious accompanying disorder or impaired organ function (except when due to lymphoma involvement), in particular:
  • heart: angina pectoris CCS \>2, cardiac failure e.g. NYHA \>2 and/or EF \<50% or FS\<25% in nuclear medicine examination/echocardiography
  • lungs: if respiratory problems are suspected the patient is to be excluded if the resultant pulmonary function test shows FeV1\<50% or a diffusion capacity \<50% of the reference values
  • kidneys: creatinine \>2 times the upper reference limit
  • liver: bilirubin \>2 times the upper reference limit, aspartate transaminase (AST, SGOT) or alanine transaminase (ALT, SGPT) \>3 x institutional upper reference limit
  • uncontrollable diabetes mellitus (prephase treatment with predniso\[lo\]ne!)
  • Platelets \<75 000/mm3, leukocytes \<2 500/mm3 (if not due to lymphoma)
  • Known hypersensitivity to the medications to be used
  • Known HIV-positivity
  • Patients with severe impairment of immune defense
  • Patients with constipation with imminent risk of ileus
  • Chronic active hepatitis
  • Poor patient compliance
  • Simultaneous participation in other treatment studies or in another clinical trial within the last 6 months
  • +14 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (127)

Saarland University Hospital

Homburg, Saarland, 66421, Germany

Location

Evangelisches Krankenhaus Paul Gerhardt Stift, Klinik für Innere Medizin II

Wittenberg, Saxony-Anhalt, 06886, Germany

Location

Klinik für Hämatologie und Onkologie

Aachen, 52074, Germany

Location

Innklinikum Altötting

Altötting, 84503, Germany

Location

Klinikum St. Marien Amberg, MVZ

Amberg, Germany

Location

Klinikum Augsburg, Medizinische Klinik II

Augsburg, Germany

Location

Praxis Dres. med. Brudler, Heinrich, Bangerter

Augsburg, Germany

Location

Gemeinschaftspraxis Dres. Reichert, Janssen

Aurich, Germany

Location

Helios Klinikum Bad Saarow, Klinik für Innere Medizin III

Bad Saarow, Germany

Location

Sozialstiftung Bamberg, Med. Klinik V

Bamberg, Germany

Location

Klinikum Bayreuth, Medizinische Klinik IV

Bayreuth, Germany

Location

Charité- Universitätsmedizin Berlin, Campus Benjamin Franklin, Med. Klinik III

Berlin, Germany

Location

Knappschaftskrankenhaus Bochum

Bochum, Germany

Location

Johanniter Krankenhaus Bonn, Abteilung für Innere Medizin I

Bonn, Germany

Location

Universitätsklinikum Bonn, Med. Klinik III

Bonn, Germany

Location

Städt. Klinikum Brandenburg, Med. Klinik II

Brandenburg, Germany

Location

Evangelisches Diakonie-Krankenhaus Bremen

Bremen, Germany

Location

Praxis Dr. Obst

Burgwedel, Germany

Location

Praxis Dr. Marquard

Celle, Germany

Location

Klinikum Chemnitz, Innere Medizin III

Chemnitz, Germany

Location

Klinikum Coburg, V. Med. Klinik

Coburg, Germany

Location

Schwerpunktpraxis Dres. Glados/Retzlaff/Zühlsdorf/Deuticke

Coesfeld, Germany

Location

Gemeinschaftspraxis Dres. Schmitz, Steinmetz, Severin

Cologne, Germany

Location

Klinikum der Universität zu Köln, Klinik I für Innere Medizin

Cologne, Germany

Location

Krankenhaus Holweide

Cologne, Germany

Location

St. Johannes Hospital Dortmund, Med. Klinik II

Dortmund, Germany

Location

BAG Freiberg-Richter, Jacobasch, Wolf, Illmer

Dresden, Germany

Location

Gemeinschaftspraxis Dres. Mohm, Prange-Krex

Dresden, Germany

Location

Universitätsklinikum Erlangen, Med. Klinik 5

Erlangen, Germany

Location

St.-Antonius-Hospital Eschweiler, Hämatologie und Onkologie

Eschweiler, Germany

Location

Klinikum Esslingen, Klinik für Gastroenterologie, Onkologie und Innere Medizin

Esslingen am Neckar, Germany

Location

Klinikum der J.W. Goethe-Universität Frankfurt, Hämatologie/Onkologie

Frankfurt, Germany

Location

Krankenhaus Nordwest Frankfurt, II. Med. Klinik

Frankfurt, Germany

Location

Klinikum Frankfurt (Oder), Abteilung f. Innere Medizin

Frankfurt (Oder), Germany

Location

Praxis Dr. med. Reiber

Freiburg im Breisgau, Germany

Location

Universitätsklinikum Freiburg, Innere Medizin I

Freiburg im Breisgau, Germany

Location

Klinikum Fulda, Med. Klinik III

Fulda, Germany

Location

St. Josef-Hospital Gelsenkirchen, Onkologie und Hämatologie

Gelsenkirchen, Germany

Location

Praxis Dr. med. Schliesser

Giessen, Germany

Location

Wilhelm-Anton-Hospital Goch, Innere Medizin

Goch, Germany

Location

Onkologische Kooperation Harz, Onkologische Schwerpunktpraxis

Goslar, Germany

Location

Universitätsmedizin Göttingen, Hämatologie und Onkologie

Göttingen, Germany

Location

Universitätsmedizin Greifswald, Medizinische Universitätsklinik C, Hämatologie und Onkologie

Greifswald, Germany

Location

Kreiskrankenhaus Gummersbach

Gummersbach, Germany

Location

Klinikum Gütersloh

Gütersloh, Germany

Location

Kath. Krankenhaus Hagen, St.-Marien-Hospital

Hagen, Germany

Location

Gemeinschaftspraxis Rohrberg, Hurtz, Schmidt, Frank-Gleich

Halle, Germany

Location

Asklepios Klinik St. Georg, Hämatologie/Onkologie

Hamburg, Germany

Location

Hämatolog.-onkolog. Praxis Dres. Müller-Hagen, Bertram, Albertinen-Krankenhaus

Hamburg, Germany

Location

Hämatologisch-onkologische Praxis Altona (HOPA)

Hamburg, Germany

Location

Universitätsklinikum Hamburg-Eppendorf (UKE), II. Med. Klinik und Poliklinik, Onkologie und Hämatologie

Hamburg, Germany

Location

Klinikum Hannover-Siloah, Klinik für Hämatologie

Hanover, Germany

Location

Medizinische Hochschule Hannover (MHH), Zentrum für Innere Medizin, Klinik für Hämatologie, Hämostaseologie, Onkologie und Stammzelltransplantation

Hanover, Germany

Location

Praxis MediProjekt

Hanover, Germany

Location

Universitätsklinikum Heidelberg, Innere Medizin V

Heidelberg, Germany

Location

Klinikum Kreis Herford, Med. Klinik II

Herford, Germany

Location

Onkologische Schwerpunktpraxis Dres. Freier, Sievers

Hildesheim, Germany

Location

St. Bernward Krankenhaus Hildesheim, Med. Klinik II

Hildesheim, Germany

Location

KMT Klinik Idar-Oberstein

Idar-Oberstein, Germany

Location

Universitätsklinikum Jena, Klinik für Innere Medizin II

Jena, Germany

Location

Westpfalz-Klinikum, Klinik für Innere Medizin I

Kaiserslautern, 67655, Germany

Location

Praxis Dres Hansen, Reeb

Kaiserslautern, Germany

Location

St. Vincentius Kliniken Karlsruhe, Med. Klinik Abt. 2

Karlsruhe, Germany

Location

Städtisches Klinikum Karlsruhe, II. Med. Klinik, Hämatologie/Onkologie/Infektionskrankheiten

Karlsruhe, Germany

Location

GMP Dres Siehl, Söling

Kassel, Germany

Location

Rotes Kreuz Krankenhaus Kassel, Klinik für Interdisziplinäre Onkologie

Kassel, Germany

Location

Klinikum Kempten-Oberallgäu, Hämatologie, Onkologie und Palliativmedizin

Kempten, Germany

Location

Gemeinschaftsklinikum Mittelrhein, Ev. Stift St. Martin, Innere Medizin

Koblenz, Germany

Location

Gemeinschaftspraxis Dres. Neise, Lollert

Krefeld, Germany

Location

Praxis Dr. Strauch

Kronach, Germany

Location

Klinikum Landshut, Med. Klinik I

Landshut, Germany

Location

Caritas Krankenhaus Lebach

Lebach, Germany

Location

Onkologische Schwerpunktpraxis

Leer, Germany

Location

Klinikum St. Georg Leipzig, Abteilung für internistische Onkologie/Hämatologie

Leipzig, Germany

Location

Klinikum Lippe-Lemgo, Med. Klinik II

Lemgo, Germany

Location

Onkologische Schwerpunktpraxis Lörrach

Loerrach, Germany

Location

Universitätsklinikum Schleswig-Holstein, Campus Lübeck

Lübeck, Germany

Location

Klinikum Magdeburg, Hämatologie/Onkologie

Magdeburg, Germany

Location

Universitätsmedizin Mainz, III. Med. Klinik und Poliklinik

Mainz, Germany

Location

Mannheimer Onkologie Praxis, Dres. Brust, Plöger, Schuster, Hensel

Mannheim, Germany

Location

Universitätsklinikum Gießen und Marburg

Marburg, Germany

Location

Johannes Wesling Klinikum, Klinik für Hämatologie, Onkologie und Palliativmedizin

Minden, Germany

Location

Kliniken Maria-Hilf Mönchengladbach, Innere Medizin I

Mönchengladbach, Germany

Location

Stauferklinikum Schwäbisch Gmünd, Zentrum für Innere Medizin

Mutlangen, Germany

Location

GMP Dres Schröder/Sieg

Mülheim, Germany

Location

Klinikum Großhadern, Med. Klinik 3

München, Germany

Location

Klinikum rechts der Isar der Technischen Universität München, III. Med.Klinik

München, Germany

Location

Städtisches Klinikum München Harlaching

München, Germany

Location

Praxis Dres. Schmidt, Fromm, Wiesmeier, Seufert, Klapthor, Zingerle

München Pasing, Germany

Location

Universitätsklinikum Münster, Med. Klinik A

Münster, Germany

Location

Onkologische Praxis Dr. Ladda

Neumarkt, Germany

Location

Lukaskrankenhaus Neuss, Med. Klinik II

Neuss, Germany

Location

Kreiskliniken Esslingen, Klinikum Kirchheim-Nürtingen, Hämatologie, Internist. Onkologie und Palliativmedizin

Nürtingen, Germany

Location

Gemeinschaftspraxis Dres. Balló, Böck

Offenbach, Germany

Location

Ortenau Klinikum Offenburg-Gegenbach, Medizinische Klinik II

Offenburg, Germany

Location

Klinikum Oldenburg, Hämatologie/Onkologie

Oldenburg, Germany

Location

Onkologische Schwerpunktpraxis Dr. Hübner

Oldenburg, Germany

Location

Pius Hospital Oldenburg, Klinik für Strahlentherapie und Internistische Onkologie

Oldenburg, Germany

Location

Onkologische Schwerpunktpraxis im MVZ 2 GmbH, Dr. H. Eimermacher

Olpe, Germany

Location

Klinikum Osnabrück, Med. Klinik III

Osnabrück, Germany

Location

Paracelsus Krankenhaus Ruit, Kreiskliniken Esslingen gGmbH, Zentrum für Allgemeine Innere Medizin

Ostfildern, Germany

Location

Brüderkrankenhaus St. Josef Paderborn, Klinik für Hämatologie und Onkologie

Paderborn, Germany

Location

Gemeinschaftspraxis Dres. Baake, Leonhardt, Moegling, am Regio Klinikum Pinneberg

Pinneberg, Germany

Location

Klinikum Ernst von Bergmann, Klinik für Hämatologie, Onkologie und Palliativmedizin

Potsdam, Germany

Location

Gemeinschaftspraxis Dres. Decker, Nonnenbroich, Herbrik-Zipp

Ravensburg, Germany

Location

Prosper-Hospital Recklinghausen, Med. Klinik I

Recklinghausen, Germany

Location

Krankenhaus Barmherzige Brüder Regensburg, Klinik für Onkologie und Hämatologie

Regensburg, Germany

Location

Klinikum am Steinenberg, Kreiskliniken Reutlingen GmbH

Reutlingen, Germany

Location

Elblandklinikum Riesa, Klinik für Innere Medizin II

Riesa, Germany

Location

Klinikum Südstadt Rostock, Innere Medizin

Rostock, Germany

Location

Universitätsklinikum Rostock, Abteilung Hämatologie/Onkologie, Klinik u. Poliklinik für Innere Medizin

Rostock, Germany

Location

GMP Dres Jacobs, Daus, Schmits

Saarbrücken, Germany

Location

ZAHO-Siegburg, Zentrum für ambulante Hämatologie und Onkologie Siegburg

Siegburg, Germany

Location

Diakonie-Klinikum Stuttgart, Med. Klinik II

Stuttgart, Germany

Location

Klinikum Traunstein, Hämatologie/Onkologie

Traunstein, Germany

Location

Klinikum Mutterhaus der Borromäerinnen, Med. Abteilung I

Trier, Germany

Location

Krankenhaus der Barmherzigen Brüder Trier, I. Med. Abteilung

Trier, Germany

Location

Universitätsklinikum Tübingen, Medizinische Klinik und Poliklinik, Onkologie, Hämatologie, Immunologie und Rheumatologie

Tübingen, Germany

Location

Universitätsklinikum Ulm, Innere Medizin III

Ulm, Germany

Location

Katharinen Hospital Unna

Unna, Germany

Location

Schwarzwald-Baar-Klinikum - Innere Medizin II

Villingen-Schwenningen, 78052, Germany

Location

Praxis Onkologie Schwarzwald - Alb

Villingen-Schwenningen, Germany

Location

Med. Versorgungszentrum Weiden, Abteilung für Onkologie

Weiden, Germany

Location

Praxis Dres med. Perker, Sandherr

Weilheim, Germany

Location

HSK Wiesbaden, Innere Medizin III

Wiesbaden, Germany

Location

Helios Klinkum Wuppertal, Med. Klinik I

Wuppertal, Germany

Location

Hämatologisch-Onkologische Praxis Würselen

Würselen, Germany

Location

Related Publications (2)

  • Pfreundschuh, M., Christofyllakis, K., Altmann, B., Ziepert, M., Haenel, M., Viardot, A., Neubauer, A., Held, G., Truemper, L., Dreyling, M., Kanz, L., Hallek, M., Schmitz, N., Heintges, T., Kölbel, C., Buecker, A., Ruebe, C., Hellwig, D., Berdel, C., Poeschel, V., and Murawski, N. (2017) Radiotherapy to bulky disease PET-negative after immunochemotherapy in elderly DLBCL patients: Results of a planned interim analysis of the first 187 patients with bulky disease treated in the OPTIMAL>60 study of the DSHNHL. Hematological Oncology, 35( S2): 129- 130. doi: 10.1002/hon.2437_119.

    BACKGROUND
  • Kaddu-Mulindwa D, Altmann B, Held G, Angel S, Stilgenbauer S, Thurner L, Bewarder M, Schwier M, Pfreundschuh M, Loffler M, Menhart K, Grosse J, Ziepert M, Herrmann K, Duhrsen U, Huttmann A, Barbato F, Poeschel V, Hellwig D. FDG PET/CT to detect bone marrow involvement in the initial staging of patients with aggressive non-Hodgkin lymphoma: results from the prospective, multicenter PETAL and OPTIMAL>60 trials. Eur J Nucl Med Mol Imaging. 2021 Oct;48(11):3550-3559. doi: 10.1007/s00259-021-05348-6. Epub 2021 Apr 29.

MeSH Terms

Interventions

Vincristine

Intervention Hierarchy (Ancestors)

Vinca AlkaloidsSecologanin Tryptamine AlkaloidsIndole AlkaloidsAlkaloidsHeterocyclic CompoundsIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingIndolizidinesIndolizines

Study Officials

  • Lorenz Thurner, Professor

    Saarland University, Saarland University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 18, 2011

First Posted

November 23, 2011

Study Start

November 1, 2011

Primary Completion

January 18, 2024

Study Completion

January 18, 2024

Last Updated

January 8, 2025

Record last verified: 2025-01

Locations