| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated |  | 
| E.1.1.1 | Medical condition in easily understood language |  | 
| E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 20.0 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10065252 |  
| E.1.2 | Term | Solid tumor |  
| E.1.2 | System Organ Class | 100000004864 |  | 
| 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 is to determine the safety, tolerability, dose-limiting toxicities (DLTs), and MTD/MAD/alternate dose of BMS-986156 administered alone and in combination with nivolumab in subjects with advanced solid tumors. |  | 
| E.2.2 | Secondary objectives of the trial | 
| - To investigate the preliminary anti-tumor activity of BMS-986156 administered alone and in combination with nivolumab in subjects with advanced solid tumors
 - To characterize the PK of BMS-986156 administered alone and in combination with nivolumab
 - To characterize the immunogenicity of BMS-986156 administered alone and in combination with nivolumab,
 and the immunogenicity of nivolumab administered with BMS-986156.
 |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| For Dose Escalation: - Subjects with any previously treated advanced (metastatic or refractory) solid tumor
 
 For Cohort Expansion:
 - Subjects must have a previously treated advanced solid tumor to be eligible
 - Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
 - Willing and able to provide pre-treatment and on-treatment fresh tumor biopsy
 - Women of child-bearing potential and men must use an acceptable method of contraception during treatment and for 23 weeks after treatment for women and 31 weeks for men
 
 
 |  | 
| E.4 | Principal exclusion criteria | 
| - Known central nervous system metastases or central nervous system as the only source of disease - Other concomitant malignancies (with some exceptions per protocol)
 - Active, known or suspected autoimmune disease
 - Uncontrolled or significant cardiovascular disease
 - History of chronic hepatitis
 - History of active hepatitis (B or C)
 - Impaired liver or bone marrow function
 - Major surgery less than 1 month before start of the study
 
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| The assessment of safety will be based on the incidence of AEs, SAEs, adverse events leading to discontinuation, and deaths. In addition clinical laboratory test abnormalities will be examined |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| Non-serious AEs/SAEs will be collected starting with the first dose of study medication and through 100 days after discontinuation of dosing |  | 
| E.5.2 | Secondary end point(s) | 
| 1/ ORR, duration of response, and progression free survival rate (PFSR) 2/ Selected BMS-986156 parameters, such as Cmax, Tmax, AUC-(TAU), AUC (0-T) will be assessed, if feasible, from concentration-time data
 3/ Frequency of positivex ADA to BMS-986156 and or nivolumab
 |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| 1/ Every 8 weeks during treatment, response and survival follow-up periods 2/ During Cycle 1 and Cycle 3
 3/ During Cycle 1, Cycle 2 and Cycle 3
 |  | 
| 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 | No | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | No | 
| E.6.7 | Pharmacodynamic | No | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | No | 
| 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) | Yes | 
| E.7.1.1 | First administration to humans | Yes | 
| 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 | No | 
| E.8.1.1 | Randomised | No | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | No | 
| E.8.1.5 | Parallel group | No | 
| 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) | No | 
| E.8.2.2 | Placebo | No | 
| E.8.2.3 | Other | No | 
| E.8.2.4 | Number of treatment arms in the trial | 4 | 
| E.8.3 | The trial involves single site in the Member State concerned | Yes | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | No | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 19 | 
| 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 | 
| Australia |  
| Belgium |  
| Canada |  
| France |  
| Germany |  
| Italy |  
| Netherlands |  
| Spain |  
| Switzerland |  
| United Kingdom |  | 
| E.8.7 | Trial has a data monitoring committee | No | 
| 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 |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 4 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days | 24 | 
| E.8.9.2 | In all countries concerned by the trial years | 4 | 
| E.8.9.2 | In all countries concerned by the trial months | 9 | 
| E.8.9.2 | In all countries concerned by the trial days | 11 |