What does ORR stand for?

Objective Response Rate

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

Other Resources:

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Office of Research Programs and Services (New College of Florida) Oklahoma Recreation and Park Society (Tulsa, OK) Open Role-Playing System (gaming) Operations Research and Production Systems (University of Arizona) Outdoor Recreation, Parks and Tourism Oregon Parent Training and Information Center (Salem, OR) Open Response Question Organized Raiders of Quellious (video gaming) Orthogonal Rayleigh Quotient Iteration Method (algorithm) Oak Ridge Reservation (Tennessee)		Obligor Risk Rating Off-The-Road Radial Tire Office of Rail Regulation (UK government; formerly Office of the Rail Regulator) Office of Refugee Resettlement (HHS) Office of Regulation Review (Australia) Office of Response and Restoration (NOAA) Office of the Rail Regulator (UK government; now Office of Rail Regulation) Old Rochester Regional (Massachusetts) Online Research Resource (Illinois) Open Records Request (various locations)

Samples in periodicals archive:

In the DLBCL cohort, the objective response rate was 15 percent (one CR and five PRs) for enrolled patients and of the evaluable patients in this cohort, 60 percent experienced tumor reduction as assessed by CT scan.

METHYLGENE TO RESUME DEVELOPMENT OF MGCD0103 (MOCETINOSTAT)

The company said its experimental drug bavituximab, in combination with Sanofi-Aventis' chemotherapy drug Taxotere, prompted a 61 percent objective response rate in 46-patient midstage study.

Peregrine drug prompts response in cancer study

The primary endpoint of the study is objective response rate assessed by independent review.

United States : Seattle Genetics completes enrollment of its pivotal ...

In addition, hormonal agents such as tamoxifen have an objective response rate of approximately 15%.

Pegylated Liposomal Doxorubicin vs. Topotecan for Recurrent ...

Secondary objectives were: 1) to determine the objective response rate in patients with measurable disease (excluding bone); 2) to determine the duration of response and time-to-progression; and 3) to describe and quantify drug related toxicity.

Clinical Trial of MGI-114 in Prostate Cancer

OB) announced preliminary results that show a high objective response rate in a pilot study of patients with advanced melanoma that incorporates the Company's lead oncology product, Genasense([R]) (oblimersen sodium) Injection, administered for the first time as a 1-hour high-dose intravenous (IV) infusion.

Genasense[R] Given as High-Dose IV Infusion with Chemotherapy Shows ...

Secondary endpoints Objective response rate, overall survival, safety and tolerability, effects on pharmacodynamic markers of vascular disruption and tumor apoptosis, and pharmacokinetic analyses.

CYTOPIA BEGINS SECOND PHASE II STUDY IN BRAIN CANCER

In addition, hormonal agents such as tamoxifen have an objective response rate of approximately 15%.

Pegylated Liposomal Doxorubicin vs. Topotecan for Recurrent ...