| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Pain from Osteoarthritis of the Knee |  
| Dolore da osteoartrosi del ginocchio |  | 
| E.1.1.1 | Medical condition in easily understood language | 
| Pain from Osteoarthritis of the Knee |  
| Dolore da osteoatrosi del ginocchio |  | 
| E.1.1.2 | Therapeutic area | Diseases [C] - Musculoskeletal Diseases [C05] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 14.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10031165 |  
| E.1.2 | Term | Osteoarthritis knee |  
| E.1.2 | System Organ Class | 10028395 - Musculoskeletal and connective tissue disorders |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| The primary objective of this study is to compare the safety, tolerability  and analgesic efficacy of ABT-110 administered SC once every 8 weeks  (q8w) for a total of 3 doses to placebo in subjects with pain due to OA of  the knee. |  
| L’obiettivo primario di questa sperimentazione è di confrontare la sicurezza, la tollerabilità e l’efficacia analgesica di ABT-110, somministrato per via sottocutanea (SC) una volta ogni 8 settimane per un totale di 3 somministrazioni, verso placebo, in soggetti con dolore da osteoatrosi del ginocchio. |  | 
| E.2.2 | Secondary objectives of the trial | 
| A secondary objective of this study is to explore the population  pharmacokinetics of ABT-110. |  
| L’obiettivo secondario di questa  sperimentazione è di esplorare la farmacocinetica di popolazione di ABT-110. |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| 1. Subject is between 18 and 70 years of age, inclusive.  2. Osteoarthritis pain in the index knee which meets the following:  ● History of pain in the index knee ≥ 6 months; AND  ● K-L Grade 2 or 3 only on plain radiographs of the index knee; AND  ● At least 1 of the following 3 criteria:  ○ Age > 50 years; OR  ○ Stiffness < 30 minutes upon awakening; OR  ○ Crepitus in the index knee.  3. Subject must meet the following pain criteria at the time of the  Baseline Visit:  ● Subject's Assessment of Arthritis Pain Intensity (VAS) of the index  knee is ≥ 40 mm with an increase of ≥ 10 mm from the Screening Visit,  o For subjects whose Screening VAS is ≥ 85 mm, a VAS of ≥ 85 mm must  be maintained at the Baseline Visit; AND  ● Subject's Global Assessment of Arthritis Status must be Fair, Poor or  Very Poor.  4. Subject requires therapeutic doses of at least 1 non-opioid analgesic  for OA pain for at least 4 days per week during the 4 weeks prior to the  Screening Visit. |  
| 1. Soggetti di età compresa tra 18 e 70 anni.  2. Dolore da osteoatrosi del ginocchio affetto con le seguenti caratteristiche:   Storia di dolore al ginocchio affetto ≥ 6 mesi, E   Kellgren-Lawrence (K-L) di grado 2 o 3, alle radiografie del ginocchio affetto, E   Almeno uno dei seguenti requisiti:  o Età > 50 anni, OPPURE  o Rigidità < 30 minuti al risveglio, OPPURE  o Crepitii al ginocchio affetto  3. I soggetti devono rispettare i seguenti criteri del dolore al momento della visita basale:    - la valutazione del soggetto dell’intensità del dolore da osteoartrosi secondo la scala analogico-visiva (VAS) ≥ 40 mm con un aumento di ≥ 10 mm rispetto al punteggio ottenuto alla visita di screening,    - Per i soggetti la cui VAS allo screening è ≥ 85 mm, deve essere mantenuto un punteggio VAS di ≥ 85 mm al basale; E    - la valutazione globale del soggetto dello “status “ di osteoartrosi deve essere moderata, scarsa o molto scarsa.  4. I soggetti necessitano di dosi terapeutiche di almeno 1 analgesico non oppiaceo per il trattamento del dolore da OA per almeno 4 giorni la settimana durante le 4 settimane precedenti la visita di screening. |  | 
| E.4 | Principal exclusion criteria | 
| 1. Subject is scheduled for or is considering joint replacement surgery  within 6 months following the Screening Visit.  2. Subject has had any of the following:  ● Joint replacement/reconstruction to the index joint at any time;  ● Any major surgery, e.g., open surgery, to the index joint within 12  months  prior to the Screening Visit; OR  ● Arthroscopic surgery to the index joint within 3 months prior to the  Screening  Visit.  3. Subject has a history of osteonecrosis in any joint.  4. Subject has OA of the knee that meets the K-L classification criteria of  grade 0, 1  or 4. |  
| 1. Soggetti che hanno programmato o considerano di sottoporsi ad un intervento chirurgico di artroprotesi entro 6 mesi dopo la visita di screening.  2. Soggetti che hanno avuto uno dei seguenti interventi:  • artroprotesi del ginocchio affetto in qualsiasi momento  • Un qualsiasi intervento di chirurgia maggiore, per esempio un intervento a cielo aperto, al ginocchio affetto nei 12 mesi precedenti la Visita di Screening, OPPURE    • Intervento di artroscopia al ginocchio affetto nei 3 mesi precedenti la Visita di Screening.  3. Soggetti con storia di osteonecrosi a qualsiasi articolazione.  4. Soggetti che hanno OA del ginocchio con classificazione K-L di grado 0, 1 o 4. |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Change from baseline to subject's final evaluation on pain intensity as  measured by a 100 mm Visual Analog Scale (VAS) |  
| Variazione, dal basale fino alla valutazione finale del soggetto, dell’intensità del dolore valutata mediante Scala Analogico Visiva (VAS) di 100 mm. |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| 0, 8, 16 and 24 weeks |  
| A zero, 8, 16 e 24 settimane |  | 
| E.5.2 | Secondary end point(s) | 
| Western Ontario and McMasters Osteoarthritis Index (WOMAC™),  EuroQol-5D™ (EQ-5D-5L), Work Productivity and Activity Impairment  (WPAI) Questionnaire |  
| Western Ontario and McMaster Osteoarthritis Index (WOMAC), Euro QoL-5D (EQ-5D-5L), Work Productivity and activity Impairment (WPAI) Questionnaire. |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| 0, 8, 16 and 24 weeks |  
| A zero, 8, 16 e 24 settimane |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | Yes | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | Yes | 
| E.6.7 | Pharmacodynamic | Yes | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | Yes | 
| E.6.10 | Pharmacogenetic | Yes | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | No | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | Yes | 
| E.8.1.5 | Parallel group | Yes | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | Yes | 
| E.8.2.2 | Placebo | Yes | 
| E.8.2.3 | Other | No | 
| E.8.2.4 | Number of treatment arms in the trial | 6 | 
| E.8.3 | The trial involves single site in the Member State concerned | No | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | No | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 1 | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 24 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | No | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Argentina |  
| Australia |  
| Singapore |  
| South Africa |  | 
| 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 | 
| The end-of-study is defined as the date of the last subject's last visit. |  
| La conclusione della sperimentazione è definita come l'ultima visita dell'ultimo soggetto. |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 0 | 
| E.8.9.1 | In the Member State concerned months | 17 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 0 | 
| E.8.9.2 | In all countries concerned by the trial months | 17 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |