Solid forms comprising 4-amino-2-(2,6-dioxopiperidine-3-yl)isoindoline-1,3-dione and a coformer, compositions and methods of use thereof

A method of treating multiple myeloma, the method comprising administering to a patient dexamethasone in combination with a solid form comprising (a) 4-amino-2-(2,6-dioxopiperidine-3-yl)isoindoline-1,3-dione (pomalidomide);

• and (b) a coformer;
• wherein
• the coformer is gallic acid and the solid form has an X-ray powder diffraction (XRPD) pattern comprising peaks at 22.98, 26.16, and 26.90 degrees 2θ±0.2 degrees 2θ;
• the coformer is vanillin and the solid form has an XRPD pattern comprising peaks at 13.09, 17.30, and 25.61 degrees 2θ±0.2 degrees 2θ;
• the coformer is cyclamic acid and the solid form has an XRPD pattern comprising peaks at 6.42, 7.88, and 15.73 degrees 2θ±0.2 degrees 2θ;
• the coformer is D-glucose and the solid form has an XRPD pattern comprising peaks at 17.09, 20.68, and 25.52 degrees 2θ±0.2 degrees 2θ;
• the coformer is propyl gallate and the solid form has an XRPD pattern comprising peaks at 7.78, 25.23, and 25.61 degrees 2θ±0.2 degrees 2θ;
• the coformer is saccharin and the solid form has an XRPD pattern comprising peaks at 15.98, 19.09, and 25.10 degrees 2θ±0.2 degrees 2θ;
• the coformer is sodium lauryl sulfate and the solid form has an XRPD pattern comprising peaks at 2.66, 5.30, and 7.93 degrees 2θ±0.2 degrees 2θ;
• the coformer is magnesium bromide and the solid form has an XRPD pattern comprising peaks at 3.23, 28.76, and 29.95 degrees 2θ±0.2 degrees 2θ;
• the coformer is malonic acid and the solid form has an XRPD pattern comprising peaks at 12.23, 16.63, and 25.58 degrees 2θ±0.2 degrees 2θ;
• the coformer is maltol and the solid form has an XRPD pattern comprising peaks at 16.51, 17.09, and 25.73 degrees 2θ±0.2 degrees 2θ;
• the coformer is methyl paraben and the solid form has an XRPD pattern comprising peaks at 18.73, 25.69, and 26.70 degrees 2θ±0.2 degrees 2θ;
• or
• the coformer is zinc chloride and the solid form has an XRPD pattern comprising peaks at 2.38, 17.17, and 25.71 degrees 2θ±0.2 degrees 2θ.