A cable gland for securing and retaining an optical cable, said optical cable comprising optical fiber units and strength members, said cable gland being partially insertable in a base of an optical joint closure and comprising: - a central body longitudinally extended along a longitudinal direction (X-X) between a first end and a second end and configured to receive said optical cable passing through said ends (121,122), wherein said central body comprises one or more locking elements protruding from the surface of the central body; wherein the one or more locking elements have a deformable cantilever structure and wherein when said central body is partially inserted in said optical joint closure, said first end is positioned inside the inner volume of said optical joint closure and said second end is positioned outside said optical joint closure, and wherein the locking elements are configured to be secured to said base of the optical joint closure after insertion of the cable gland in the optical joint closure, - a first clamping nut cooperating with said second end of the central body for radially clamping the optical cable, and - a cable securing assembly (250,350); characterized in that the cable securing assembly (250,350) comprises a second clamping nut (230,330) attached to said first end of said central body and a cable retention group (240,340) cooperating with said second clamping nut (230,330) in order to retain and secure said optical cable on said cable gland, said second clamping nut (230,330) being ring-shaped and comprising a lateral surface (231,331) at least partially internally threaded and configured to cooperate with said first end of said central body, said cable retention group (240,340) projecting from said second clamping nut (230,330) along said longitudinal direction (X-X), said cable retention group (240,340) being configured to be completely positioned inside the inner volume of said optical joint closure after insertion of the cable gland in the optical joint closure. - a central body longitudinally extended along a longitudinal direction (X-X) between a first end and a second end and configured to receive said optical cable passing through said ends (121,122), wherein said central body comprises one or more locking elements protruding from the surface of the central body; wherein the one or more locking elements have a deformable cantilever structure and wherein when said central body is partially inserted in said optical joint closure, said first end is positioned inside the inner volume of said optical joint closure and said second end is positioned outside said optical joint closure, and wherein the locking elements are configured to be secured to said base of the optical joint closure after insertion of the cable gland in the optical joint closure, wherein the one or more locking elements have a deformable cantilever structure and wherein when said central body is partially inserted in said optical joint closure, said first end is positioned inside the inner volume of said optical joint closure and said second end is positioned outside said optical joint closure, and wherein the locking elements are configured to be secured to said base of the optical joint closure after insertion of the cable gland in the optical joint closure, - a first clamping nut cooperating with said second end of the central body for radially clamping the optical cable, and - a cable securing assembly (250,350);