
Study of Cobimetinib in Combination With Atezolizumab and Bevacizumab in Participants With Gastrointestinal...
Colorectal CancerThis is an open-label, multicenter, single-arm, two-stage, Phase Ib study designed to assess the safety, tolerability, and pharmacokinetics of oral cobimetinib with intravenous (IV) atezolizumab and bevacizumab in participants with metastatic colorectal cancer (mCRC) who have received and progressed on at least one prior line of therapy that contained a fluoropyrimidine and oxaliplatin or irinotecan. There are two stages in this study: Stage 1 (safety run-in phase) and Stage 2 (dose expansion phase with two cohorts, an expansion cohort and a biopsy cohort).

Underwater Resection of Non-pedunculated Colorectal Lesions
Colorectal NeoplasmsThe aim of this study is to compare the efficacy of underwater resection (polypectomy) versus conventional polypectomy techniques for small and large colorectal lesions identified during colonoscopy.

To Evaluate the Safety, Tolerability, Pharmacokinetics and Antitumor Activity of YYB101 With Irinotecan,...
Colorectal Cancer MetastaticColorectal Cancer RecurrentTo evaluate the safety, tolerability, pharmacokinetics and antitumor activity of YYB101 with Irinotecan, patients who are metastatic or recurrent Colorectal Cancer Patients.

Intratumoral Influenza Vaccine for Early Colorectal Cancer
Colorectal CancerThe aim of this explorative phase II clinical trial is to establish the safety and efficacy of intratumoral influenza vaccine in patients with colorectal cancer, as an additive treatment prior to intended curative surgery.

Phase II Trial of Combination Immunotherapy in Subjects With Advanced Small Bowel and Colorectal...
Small Bowel CancersColorectal CancersBackground: Metastatic or refractory/recurrent small bowel and colorectal cancers cannot be cured and are often not helped by standard treatments. Researchers want to find better treatments by testing a combination of drugs. Objective: To learn if a new combination of immunotherapy drugs can shrink tumors in people with advanced small bowel and colorectal cancers. Eligibility: People ages 18 and older who have advanced metastatic or refractory/recurrent small bowel and/or colorectal cancer Design: Participants will be screened on a separate protocol. They will have a physical exam and medical history. They will have imaging scans. They will have blood and urine tests. Their heart function will be measured. They may have a tumor biopsy. Participants will repeat some of the screening tests during the study. Participants will be put into study groups. Each group will get a combination of the following drugs: CV301 vaccine (MVA-BN-CV301 and FPV-CV301), M7824, and N-803. Some will also get NHS-IL12. Participants will get the CV301 vaccines by injection under the skin. They will get M7824 by intravenous infusion every 2 weeks. They will get N-803 by injection under the skin every 2 or 4 weeks. They may get NHS-IL12 by injection under the skin every 4 weeks. They will take the study drugs for up to 1 year. They will visit the NIH every 2 weeks. After treatment ends, participants will go to the clinic for a 28-day follow-up visit or have a telephone call. They will be contacted every 3 months for 1 year, and then every 6 months after that for the rest of their life.

Comparison of Methylprednisolone or Methotrexate in the Maintenance Treatment of Nasal Polyposis...
Nasal PolyposisChronic rhinosinusitis with nasal polyposis (CRwNP) is an inflammatory disease of the nasal mucosa. It is presented with severe stuffiness, nasal discharge, facial pressure/pain, and sleep disorders. It leads to severe inconvenience to social life and the quality of life. The first step standard medical therapy consists of the topical intranasal or systemic corticosteroids. Surgery should be considered in the case of medical treatment failure. However, the recurrences are common after both surgery and medical therapies in severe disease and usually require revision surgeries or high dose corticosteroid regimens. On the contrary, either the revision surgeries or the high dose corticosteroid therapies are not capable of preventing the recurrences, treatment failures. Besides, revision surgeries usually lead to high complication rates and high dose corticosteroids usually cause severe adverse effects. The use of the short course topical intranasal corticosteroids after the surgery is generally advocated for these patients. However, the recurrence rates are still high. Hence a new and effective maintenance treatment algorithm with no severe adverse effects is required. The hypothesis of the clinical trial is an estimated symptom recovery and superiority in both efficacy and safety by the use of low-dose methylprednisolone or methotrexate as compared to the standard maintenance therapy in treatment-resistant CRwNP patients. Therefore, the results of the present study are believed to provide data on novel maintenance therapy and suggest an alternative to the topical intranasal corticosteroids or the high-risk revision surgery.

A Comparison of mXELIRI Regimen and FOLFIRI Combined Bevacizumab Regimen as First-line Chemotherapy...
Metastatic Colorectal CancerThis is a Phase II, multicenter,randomized, two arms, open-labeled, controlled clinical trial. This trial was conducted to evaluate the efficacy and safety of bevacizumab (Avastin®) plus mXELIRI compared with bevacizumab (Avastin®) plus FOLFIRI as first-line treatment in patients with metastatic colorectal cancer (mCRC).

A Study of Rivoceranib and Trifluridine/Tipiracil for Metastatic Colorectal Cancer (mCRC)
Metastatic Colorectal CancerThe purpose of this study is to determine the recommended Phase 2 dose (RP2D) of rivoceranib when used in combination with trifluridine/tipiracil in participants with mCRC and to assess progression-free survival (PFS) in participants with mCRC.

Study on the Effectiveness and Safety of the Combination of the Two Drugs Regorafenib and Nivolumab...
Colorectal CancerThe purpose of this study is to learn if combination of the two drugs regorafenib and nivolumab is an effective treatment for pMMR - MSS colorectal cancer, a special type of cancer of the colon or rectum (pMMR stands for proficient Mismatch Repair; MSS stands for Microsatellite Stable) and whether it is safe for patients. Regorafenib works by blocking several different proteins involved in tumor growth. Nivolumab is an immunotherapy drug encouraging the body's own immune system to attack cancer cells. Both drugs have been approved, but not for how they are being used as combination therapy in this study. Brand name of regorafenib is Stivarga; brand name of nivolumab is Opdivo.

TMZ + Olaparib for MGMT Hypermethylated Colorectal Cancer
Colorectal CancerThis is a Phase II, non-randomized, open-label study to evaluate temozolomide in combination with olaparib in patients with MGMT promoter hypermethylated advanced colorectal cancer.