Intermediate product for producing pre-filled dual-chamber syringes or cartridges and method of producing said intermediate product

An intermediate product for producing a plurality of pre-filled dual-chamber syringes or cartridges, comprising:

• a support template comprising an array of support seats;
• a plurality of partially pre-filled tubular containment bodies, each of the tubular containment bodies being inserted in a respective support seat, each of the tubular containment bodies extending between a first opening and a second opening;
• a sterile package inside which the support template and the plurality of tubular containment bodies are enclosed in sterile manner;
• the sterile package comprising:
• a containment tray, the support template being accommodated inside the containment tray, the containment tray comprising an opening rim in which the sterile package comprises a closure film fastened flush to said rim and resting on an end portion of said tubular containment bodies:
• a first sterile pouch containing the containment tray;
• wherein the tubular containment bodies comprise in the interior thereof:
• a first stopper and a second stopper arranged to define therebetween in the tubular containment body a first containment chamber and adapted to slide inside the tubular containment body;
• a first liquid substance contained inside the first containment chamber;
• wherein the first stopper is spaced from the first opening to define between the first stopper and the first opening a second containment chamber, the second containment chamber being empty and adapted to be filled with a second substance to be mixed inside the containment body with said first liquid substance in order to reconstitute an injectable solution.