Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis), or any other chronic, serious GI condition associated with diarrhea; NOTE: Subjects with known diverticulosis are permitted to enroll No gastrointestinal disorders associated with a high risk of perforation or fistula formation within 3 months prior to registration:\r\n* Active peptic ulcer disease\r\n* Inflammatory bowel disease (including ulcerative colitis and Crohn’s disease), diverticulitis, cholecystitis, symptomatic cholangitis or appendicitis\r\n* Known malabsorption syndrome\r\n* Bowel obstruction or gastric outlet obstruction\r\n* Percutaneous endoscopic gastrostomy (PEG) tube placement Active small or large intestine inflammation such as Crohn’s disease or ulcerative colitis Patients with clinically significant gastrointestinal abnormalities that may increase the risk for gastrointestinal bleeding are NOT eligible for participation; these may include (but are not limited to):\r\n* Active peptic ulcer disease\r\n* Known intraluminal metastatic lesion/s with risk of bleeding \r\n* Inflammatory bowel disease (e.g. ulcerative colitis, Crohn’s disease)\r\n* Other gastrointestinal conditions with increased risk of perforation History of symptomatic autoimmune disease (such as lupus, scleroderma, Crohn’s disease, ulcerative colitis) requiring systemic treatment (for example corticosteroids or immunosuppressants); replacement therapy (for example, thyroxine, insulin) is not considered a systemic treatment The patient has serious preexisting medical condition(s) that would preclude participation in this study (for example, interstitial lung disease, severe dyspnea at rest or requiring oxygen therapy, history of major surgical resection involving the stomach or small bowel, or preexisting Crohn’s disease or ulcerative colitis or a preexisting chronic condition resulting in baseline grade 2 or higher diarrhea) Bowel obstruction, history or presence of inflammatory enteropathy or extensive intestinal resection (hemicolectomy or extensive small intestine resection with chronic diarrhea), Crohn’s disease, ulcerative colitis, or chronic diarrhea Any history or presence of poorly controlled gastrointestinal disorders that could affect the absorption of the study drug (e.g. Crohn’s disease, ulcerative colitis, chronic diarrhea, malabsorption) Any history or presence of poorly controlled gastrointestinal disorders that could affect the absorption of the study drug (e.g. Crohn’s disease, ulcerative colitis, chronic diarrhea, malabsorption) Any history or presence of poorly controlled gastrointestinal disorders that could affect the absorption of the study drug (e.g. Crohn’s disease, ulcerative colitis, chronic diarrhea, malabsorption) Inability to swallow oral medication; or the presence of a poorly controlled gastrointestinal disorder that could significantly affect the absorption of oral study drug – e.g. Crohn’s disease, ulcerative colitis, chronic diarrhea (defined as > 4 loose stools per day), malabsorption, or bowel obstruction. Active rectal diverticulitis, Crohn’s disease affecting the rectum or ulcerative colitis (non-active diverticulitis and Crohn’s disease not affecting the rectum are allowed) History of active autoimmune diseases such as but not limited to Crohn’s disease, ulcerative colitis, Sjogren’s syndrome, requiring active immune suppression; patient may have hay fever or controlled asthma Patients with a history of colitis. Patient is unable to take drugs orally due to disorders or diseases that may affect gastrointestinal function, such as inflammatory bowel diseases (eg, Crohn’s disease, ulcerative colitis) or malabsorption syndrome, or procedures that may affect gastrointestinal function, such as gastrectomy, enterectomy, or colectomy History of clinically severe (e.g., requires chronic immunosuppressive therapy, [e.g., cyclosporine A, tacrolimus]) autoimmune disease (e.g., ulcerative colitis, lupus), or history of organ transplant Any of the following within 28 days before the first dose of study treatment\r\n* Intra-abdominal tumor/metastases invading gastrointestinal (GI) mucosa\r\n* Active peptic ulcer disease\r\n* Inflammatory bowel disease (including ulcerative colitis and Crohn’s disease), diverticulitis, cholecystitis, symptomatic cholangitis or appendicitis\r\n* Malabsorption syndrome Grade 3 or higher colitis attributable to PD1 blockade; note that colitis attributable to ipilimumab is not excluded Any history or presence of poorly controlled gastrointestinal disorders that could affect the absorption of the study drug (e.g. Crohn’s disease, ulcerative colitis, chronic diarrhea, malabsorption) Gastrointestinal tract disease or defect or previous history of colitis. Has evidence of colitis History of Crohn’s disease or ulcerative colitis Has chronic, active colitis CAPMATINIB EXCLUSION CRITERIA: Gastrointestinal disease (e.g., Crohn’s disease, ulcerative colitis, short gut syndrome) or other malabsorption syndromes that would impact on drug absorption CERITINIB EXCLUSION CRITERIA: Gastrointestinal disease (e.g., Crohn’s disease, ulcerative colitis, short gut syndrome) or other malabsorption syndromes that would impact on drug absorption REGORAFENIB EXCLUSION CRITERIA: Gastrointestinal disease (e.g., Crohn’s disease, ulcerative colitis, short gut syndrome) or other malabsorption syndromes that would impact on drug absorption ENTRECTINIB EXCLUSION CRITERIA: Gastrointestinal disease (e.g., Crohn’s disease, ulcerative colitis, short gut syndrome) or other malabsorption syndromes that would impact on drug absorption History or presence of digestive tract diseases, including active gastric/duodenal ulcer or ulcerative colitis, or active hemorrhage of an unresected gastrointestinal tumor, or an evaluation by investigators of having any other condition that could possibly result in gastrointestinal tract hemorrhage or perforation; PHASE I STUDY ELIGIBILITY CRITERIA:\r\nActive or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis); eligibility for patients with asymptomatic and a previous diagnosis of immune or inflammatory colitis, or patients with chronic diarrhea > 1 month without immune or inflammatory colitis is a PI decision on an individual patient basis PHASE II STUDY COHORT 1 OVARIAN CANCER ELIGIBILITY CRITERIA (MEDI+O, MEDI+C AND MEDI+O+C):\r\nActive or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis); eligibility for patients with asymptomatic and a previous diagnosis of immune or inflammatory colitis, or patients with chronic diarrhea > 1 month without immune or inflammatory colitis is a PI decision on an individual patient basis PHASE II STUDY COHORT 5 TRIPLE NEGATIVE BREAST CANCER ELIGIBILITY CRITERIA (MEDI+O ONLY):\r\nActive or prior documented inflammatory bowel disease (e.g., Crohn`s disease, ulcerative colitis); eligibility for patients with asymptomatic and a previous diagnosis of immune or inflammatory colitis, or patients with chronic diarrhea > 1 month without immune or inflammatory colitis is a PI decision on an individual patient basis PHASE II STUDY METASTATIC CASTRATE-RESISTANT PROSTATE CANCER COHORT 4 ELIGIBILITY CRITERIA (MEDI+O ONLY):\r\nActive or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis); eligibility for patients with asymptomatic and a previous diagnosis of immune or inflammatory colitis, or patients with chronic diarrhea > 1 month without immune or inflammatory colitis is a PI decision on an individual patient basis PHASE II COLORECTAL CANCER COHORT 6 (MEDI+C ONLY):\r\nActive or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis); eligibility for patients with asymptomatic and a previous diagnosis of immune or inflammatory colitis, or patients with chronic diarrhea > 1 month without immune or inflammatory colitis is a PI decision on an individual patient basis History of inflammatory colitis or other active severe comorbidities The presence of poorly controlled gastrointestinal disorders that could affect the absorption of the afatinib (e.g. Crohn‘s disease, ulcerative colitis, chronic diarrhea, malabsorption) History of Crohn’s disease or Ulcerative colitis Any active gastrointestinal (GI) impairment which, in the opinion of the investigator, would impair or alter the absorption of ceritinib (e.g., ulcerative colitis, or Crohn’s disease) History of (H/o) Crohn’s disease/ulcerative colitis/scleroderma Active rectal diverticulitis, Crohn’s disease, or ulcerative colitis Any patient with active Crohn’s disease or active ulcerative colitis Pre-existing Familial adenomatous polyposis, inflammatory bowel disease or ulcerative colitis History of Crohn’s disease, ulcerative colitis, or ataxia telangiectasia Chronic diarrhea > grade 1, or a diagnosis of Crohn’s or ulcerative colitis History of diverticulitis, diverticulosis requiring antibiotic treatment or chronic ulcerative lower gastrointestinal (GI) disease such as Crohn’s disease, ulcerative colitis or other symptomatic lower GI conditions that might predispose to perforations Patients must not have active or a history of small or large intestine inflammation such as Crohn’s disease or ulcerative colitis Active peptic ulcer disease, inflammatory bowel disease (e.g. ulcerative colitis, Crohn’s disease), diverticulitis or other gastrointestinal conditions with increased risk of perforation or gastrointestinal bleeding Intraluminal metastatic lesion with suspected bleeding, inflammatory bowel disease, ulcerative colitis or other GI condition associated with increased risk of perforation Active peptic ulcer disease, inflammatory bowel disease (e.g. ulcerative colitis, Crohn’s disease), or other gastrointestinal conditions with increased risk of perforation or gastrointestinal bleeding History of diverticulitis, chronic ulcerative lower GI disease such as Crohn’s disease or ulcerative colitis, or other symptomatic lower GI conditions that might predispose to perforations History of poorly controlled gastrointestinal disorders that could affect the absorption of the study drug (for example, Crohn’s disease, ulcerative colitis); patients requiring feeding tubes are permitted No clinically significant gastrointestinal abnormalities that may increase the risk for gastrointestinal bleeding within 28 days prior to registration including, but not limited to: \r\n* Active peptic ulcer\r\n* Known endoluminal metastatic lesion(s) with history of bleeding\r\n* Inflammatory bowel disease (e.g. ulcerative colitis, Crohn’s disease), or other gastrointestinal conditions with increased risk of perforation At the time of screening, active peptic ulcer disease or active inflammatory bowel disease (including ulcerative colitis or Crohn’s disease), diverticulitis, cholecystitis, symptomatic cholangitis, or appendicitis Malabsorption syndrome, (prior surgical procedures affecting absorption), or inflammatory gastrointestinal (GI) disease (e.g., Crohn’s, ulcerative colitis) which in the opinion of the study coordinator is likely to limit normal absorption of the drug Patients with Crohn’s disease or ulcerative colitis History of poorly controlled gastrointestinal disorders that could affect the absorption of the study drug (eg, Crohn’s disease, ulcerative colitis); patients requiring feeding tubes are permitted History of Crohn’s disease or ulcerative colitis Significant gastrointestinal disorder(s), in the opinion of the principal investigator (e.g., Crohn’s disease, ulcerative colitis, extensive gastric resection) Clinically significant gastrointestinal abnormalities that may increase the risk for gastrointestinal bleeding (e.g. active peptic ulcer, ulcerative colitis, Crohn’s disease, abdominal fistula) within prior 6 months No clinically significant gastrointestinal abnormalities that may increase the risk of gastrointestinal bleeding within 28 days prior to registration including, but not limited to:\r\n* Active peptic ulcer\r\n* Known endoluminal metastatic lesion(s) with history of bleeding\r\n* Active inflammatory bowel disease (e.g. ulcerative colitis, Crohn’s Disease), or other gastrointestinal conditions with increased risk of perforation Patients who have malabsorption problems, such as ulcerative colitis, irritable bowel syndrome, Crohn’s disease, bowel surgery such as gastric bypass, and celiac disease History of diverticulitis, Crohn’s disease or ulcerative colitis Have a personal history of inflammatory bowel disease (Crohn’s disease or colitis), colon polyps, or a history of cancer except non-melanoma skin cancer Ongoing irritable bowel syndrome (IBS) or colitis (including but not limited to ulcerative colitis, Crohn’s disease, microscopic colitis, etc.) Patients who are treated for a medical condition (such as ulcerative colitis) with chronic steroids during the 2 years prior to planned mastectomy surgery Patient has a history of severe GI tract insult including but not limited to previous bowel perforation, grade 4 neutropenic colitis or typhlitis, inflammatory bowel syndrome, short small bowel syndrome (Crohn’s disease, ulcerative colitis) or history of bowel resection Patients with ulcerative colitis in clinical remission (UCDAI) =< 1 for at least 3 months, regardless of how long ago they were diagnosed for UC Known diagnosis of colon heritable cancer syndrome (familial adenomatous polyposis [FAP], hereditary nonpolyposis colorectal cancer [HNPCC]) or inflammatory bowel disease (Crohn’s disease, ulcerative colitis) No previous diagnoses of ulcerative colitis, Crohn’s disease or irritable bowel disease Gastrointestinal disorder(s) which, in the opinion of the Qualified/Principal Investigator, would significantly impede the absorption of an oral agent (e.g. intestinal occlusion, active Crohn's disease, ulcerative colitis, extensive gastric and small intestine resection). Chronic inflammatory bowel disease (Crohn's disease or ulcerative colitis) History of inflammatory bowel disease (Crohn's or ulcerative colitis) 13. Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis); Presence of a bowel obstruction, history or presence of inflammatory enteropathy, or extensive intestinal resection, Crohn disease, ulcerative colitis, or chronic diarrhea; Gastrointestinal disease (e.g., Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes that would impact drug absorption. Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis). Active rectal diverticulitis, Crohn's disease affecting the rectum, or ulcerative colitis. Gastrointestinal disorder(s) which, in the opinion of the Principal Investigator, would significantly impede the absorption of an oral agent (e.g. active Crohn's disease, ulcerative colitis, extensive gastric and small intestine resection). History of inflammatory bowel disease (e.g., Crohn disease and ulcerative colitis), active bowel inflammation (e.g., diverticulitis) Active rectal diverticulitis, Crohn's disease affecting the rectum or ulcerative colitis (non-active diverticulitis and Crohn's disease not affecting the rectum are allowed). History of or active inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Uncontrolled inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis). Has active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) No preexisting condition that would deter radiotherapy, eg, fistulas, severe ulcerative colitis (particularly participants currently taking sulphasalazine), Crohn's disease, prior adhesions Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Any symptomatic autoimmune disease (such as lupus, scleroderma, Crohn's disease, ulcerative colitis) that requires administration of >10mg of prednisone equivalent. Lower dose steroids for conditions such as hypophysitis are allowed. Uncontrolled inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Serious intercurrent medical illness which would interfere with the ability of the patient to carry out the treatment program, including, but not limited to, inflammatory bowel disease, Crohn's disease, ulcerative colitis, or active diverticulitis Prior diagnosis of Crohn's disease or ulcerative colitis Have gastrointestinal illness or disorder that could affect oral absorption of AP32788 (such as short gut syndrome, Crohn's disease, ulcerative colitis, or CTCAE grade 2 or greater diarrhea of any etiology at baseline). A documented history of inflammatory bowel disease (ulcerative colitis or Crohn's disease, within three years) History of or active inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis). Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis). Active gastrointestinal disease (eg, Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes that would reasonably impact drug absorption. Patients with Crohn's disease or ulcerative colitis Prior diagnosis of Crohn's disease or ulcerative colitis Active inflammatory disease requiring immunosuppressants, including small or large intestinal inflammation such as Crohn's disease or ulcerative colitis Subjects who have a history of inflammatory bowel disease, Crohn's disease, ulcerative colitis, or Wegener's granulomatosis; Gastrointestinal disease (e.g., Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes that would impact on drug absorption. History of inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis), celiac disease (ie, sprue), prior gastrectomy or upper bowel removal, or any other gastrointestinal disorder or defect Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [eg, colitis, Crohn's disease], diverticulitis Significant gastrointestinal disorder(s) (e.g., active Crohn's disease or ulcerative colitis, or a history of extensive gastric resection and/or small intestinal resection) such that absorption of oral medications is impaired. Significant gastrointestinal disorder(s) that would, in the opinion of the Principal Investigator, prevent absorption of an orally available agent (e.g., Crohn's disease, ulcerative colitis, extensive gastric resection and small intestinal resection). History of inflammatory bowel disease (e.g. Crohn's disease, ulcerative colitis), celiac disease, prior gastrectomy, gastric bypass, upper bowel removal, or any other gastrointestinal disorder or defect that would interfere with the absorption of the study drug and/or predispose the subject to an increased risk of gastrointestinal toxicity. History of Crohn's Disease or Ulcerative Colitis Significant gastrointestinal disorder(s) (e.g., active Crohn's disease or ulcerative colitis, or a history of extensive gastric resection and/or small intestinal resection) such that absorption of oral medications is impaired. Uncontrolled inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Inflammatory bowel disease including Crohn's disease and colitis ulcerosa. Have a bowel obstruction, history or presence of inflammatory enteropathy or extensive intestinal resection (hemicolectomy or extensive small intestine resection with chronic diarrhea), Crohn's disease, ulcerative colitis, or chronic diarrhea. Active or prior documented inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis) Medical history of autoimmune disease (e.g., Crohn's disease, ulcerative colitis) or other diseases requiring systemic glucocorticoid or immunosuppressive therapy. Recent or ongoing clinically significant GI disorder, e.g. Crohn's Disease, Ulcerative Colitis, or prior total or partial gastrectomy. Active or prior documented inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis). Active or prior documented inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis) Uncontrolled inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Significant gastrointestinal disorder(s), in the opinion of the Principal Investigator, (e.g., Crohn's disease, ulcerative colitis, extensive gastric resection and small intestinal resection) Significant gastrointestinal disorder(s), in the opinion of the Principal Investigator, (e.g., Crohn's disease, ulcerative colitis, extensive gastric and small intestine resection) Have a history of inflammatory bowel disease (Crohn's disease or ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Diagnosis of inflammatory bowel disease (Crohn's disease or Ulcerative Colitis). Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) Active inflammatory bowel disease (i.e., Crohn's disease or ulcerative colitis) Active peptic ulcer disease, inflammatory bowel disease (eg, ulcerative colitis, Crohn's disease), diverticulitis, or other gastrointestinal conditions with increased risk of perforation or gastrointestinal bleeding. History of prior or currently active small or large intestine inflammation (such as Crohn's disease or ulcerative colitis). Any predisposition for gastrointestinal (GI) toxicity requires prior approval from the Medical Monitor. Inflammatory bowel disease including Crohn's disease and colitis ulcerosa. Significant gastrointestinal disorder(s), (e.g., Crohn's disease, ulcerative colitis, extensive gastric and small intestine resection) such that, in the opinion of the treating investigator, absorption of oral medications may be impaired. Participants with active gastrointestinal conditions (Crohn's disease, ulcerative colitis, diverticulosis associated colitis, and Behçet's disease) Active small or large intestine inflammation (such as Crohn's disease or ulcerative colitis) Patient with Crohn's colitis or ulcerative colitis Previous medical history of gastrointestinal obstruction or perforation, toxic megacolon, major colonic resection, severe diverticulitis, heart failure (Class III or IV), serious cardiovascular disease, ulcerative colitis or Crohn's disease. Significant gastrointestinal disorder(s), in the opinion of the Principal Investigator, (e.g., Crohn's disease, ulcerative colitis, extensive gastric and small intestine resection) Inflammatory bowel disease, active rectal diverticulitis, Crohn's disease affecting the rectum, anal stenosis or ulcerative colitis. (Nonactive diverticulitis and Crohn's disease not affecting the rectum are allowed) No active known autoimmune disease, including colitis, inflammatory bowel disease (i.e. ulcerative colitis or Crohn’s disease), rheumatoid arthritis, panhypopituitarism, adrenal insufficiency Inflammatory bowel disease that is uncontrolled or on active treatment (Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g. Crohn’s disease, ulcerative colitis). Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) or pneumonitis Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis). Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Has active or prior documented inflammatory bowel disease (eg, Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g. Crohn’s disease, ulcerative colitis) or a history of primary immunodeficiency Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Inflammatory bowel disease that is uncontrolled or on active treatment (Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Patients with a history of inflammatory bowel disease such as Crohn’s disease and ulcerative colitis Patients with a history of inflammatory bowel disease such as Crohn’s disease and ulcerative colitis History of collagen vascular disease or inflammatory bowel disease (Crohn’s or ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, irritable bowel syndrome, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g. Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Patients must not have a documented history of inflammatory bowel disease (including ulcerative colitis and Crohn’s disease) or diverticulitis (history of diverticulosis is allowed) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Inflammatory bowel disease (Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Patients with a history of Inflammatory bowel disease such as Crohn’s disease and ulcerative colitis History of inflammatory bowel disease (e.g., Crohn’s, ulcerative colitis) - note patients with irritable bowel syndrome are eligible Inflammatory bowel disease (Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (eg, Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g., Crohn’s disease, ulcerative colitis) Active or prior documented inflammatory bowel disease (e.g. Crohn’s disease, ulcerative colitis) Inflammatory bowel disease (e.g. Crohn’s disease, ulcerative colitis) Participants with inflammatory bowel disease (e.g., ulcerative colitis, Crohn’s) Patients with a diagnosis of inflammatory bowel disease, i.e. Crohn’s disease or ulcerative colitis Prior diagnosis of cancer (except non-melanoma skin cancer), Crohn’s disease, inflammatory bowel disease or colitis Inflammatory bowel disease (Crohn’s disease, ulcerative colitis) Gastrointestinal diseases including gastritis, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis. Gastrointestinal diseases that could alter the assessment of safety, including irritable bowel syndrome, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis. Gastrointestinal diseases including Crohn's disease or hemorrhagic coloproctitis. Gastrointestinal diseases including gastritis, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis Gastrointestinal diseases that could alter the assessment of safety, including irritable bowel syndrome, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis. Gastrointestinal diseases that could alter the assessment of safety, including irritable bowel syndrome, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis. Gastrointestinal disease or disorder that could interfere with the swallowing, oral absorption, or tolerance of CUDC-907; this includes uncontrolled diarrhea (> 1 watery stool/day), major abdominal surgery, significant bowel obstruction and/or gastrointestinal diseases that could alter the assessment of pharmacokinetics or safety, including but not limited to: irritable bowel syndrome, ulcerative colitis, Crohn’s disease and hemorrhagic coloproctitis Gastrointestinal diseases that could alter the assessment of safety, including irritable bowel syndrome, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis. Gastrointestinal diseases that could alter the assessment of safety, including irritable bowel syndrome, ulcerative colitis, Crohn's disease, or hemorrhagic coloproctitis.