| RAD001 | everolimus |
| rAd5 H101 | recombinant human adenovirus type 5 H101 |
| rAd-IFN | nadofaragene firadenovec-vncg |
| rAd/p53 | recombinant adenovirus-p53 SCH-58500 |
| RAM | ramosetron hydrochloride |
| RARa agonist IRX5183 | RARalpha agonist IRX5183 |
| ras pep vac | ras peptide cancer vaccine |
| rATG | rabbit anti-thymocyte globulin |
| rb-bFGF | recombinant bovine basic fibroblast growth factor |
| RBC | erythrocyte; red blood cell |
| rBPI 21 | opebacan |
| RBZ | zorubicin hydrochloride |
| rCD4 | recombinant soluble human CD4 protein |
| R-CHOP | R-CHOP regimen |
| R-CVP | R-CVP regimen |
| Re-186 HEDP | rhenium Re 186 etidronate |
| RECIST | Response Evaluation Criteria In Solid Tumors |
| Recombinant TSH | recombinant thyroid-stimulating hormone |
| RENCA Macrobead | mouse renal adenocarcinoma cell-encapsulated agarose-agarose macrobeads |
| R-EPOCH | EPOCH-R regimen; R-EPOCH regimen |
| rF-B7.1 vaccine | recombinant fowlpox-B7.1 vaccine |
| rf-GM-CSF | recombinant fowlpox GM-CSF vaccine adjuvant |
| rFlt3L | recombinant flt3 ligand |
| rF-NY-ESO-1 | fowlpox-NY-ESO-1 vaccine |
| rF-PSA | recombinant fowlpox-prostate specific antigen vaccine |
| RFS | disease-free survival; relapse-free survival |
| rF-TRICOM | recombinant fowlpox-TRICOM vaccine |
| rF-TYR Vaccine | recombinant fowlpox-tyrosinase vaccine |
| RG7204 | BRAF (V600E) kinase inhibitor RO5185426; vemurafenib; Zelboraf |
| rG-CSF | filgrastim |
| rGel | gelonin |
| rhACE2 APN01 | alunacedase alfa |
| RhApo2L/TRAIL | dulanermin |
| rhBMP2 | dibotermin alfa |
| rhCG | recombinant human chorionic gonadotropin |
| rhDNase inhalation solution | dornase alfa inhalation solution |
| rhEGF | recombinant human epidermal growth factor |
| rhFGF-20 | velafermin |
| rhG-CSF | recombinant human granulocyte colony-stimulating factor |
| rhGH | somatotropin |
| rHIgM12B7 | B7-DC cross-linking antibody rHIgM12B7 |
| rhIL-11 | oprelvekin; Neumega; recombinant human interleukin-11 |
| rhIL-21 | denenicokin |
| rhKGF | palifermin |
| rhSLC | recombinant human 6Ckine |
| rHuIFN-a 2a | recombinant interferon alfa-2a |
| rhuMAb-E25 | omalizumab |
| rhuMab-VEGF | bevacizumab |
| rHuPH20 | recombinant human hyaluronidase |
| rHuTPO | recombinant human thrombopoietin |
| R-ICE | R-ICE regimen |
| RIF formula | realgar-Indigo naturalis formulation |
| rIFN | recombinant interferon |
| rIL-1ra | anakinra |
| RISE | risedronate sodium |
| RIT | ritonavir |
| RIVAC | RIVAC regimen |
| RLS | restless legs syndrome |
| rM-CSF | recombinant macrophage colony-stimulating factor |
| RMP-7 | lobradimil |
| R-MVST | allogeneic virus-specific T lymphocytes R-MVST |
| RNA | ribonucleic acid |
| rNAPc2 | anpocogin |
| RNase QBI-139 | ribonuclease QBI-139 |
| ROR1-CAR-T | ROR1 CAR-specific autologous T lymphocytes |
| ROS | rosiglitazone maleate |
| RP1 | vusolimogene oderparepvec |
| rPF4 | recombinant platelet factor 4 |
| RPI.4610 | Angiozyme |
| RPLS | posterior reversible encephalopathy syndrome; reversible posterior leukoencephalopathy syndrome |
| rPTH | recombinant parathyroid hormone |
| RRP | recurrent respiratory papillomatosis |
| RS | resistant starch |
| RS7-SN38 | sacituzumab govitecan-hziy |
| r-serHuIL-2 | aldesleukin |
| RSR13 | efaproxiral |
| RSV | respiratory syncytial virus |
| RTCA | ribavirin |
| rTGF-beta-2 | recombinant transforming growth factor-beta-2 |
| RTK | receptor tyrosine kinase |
| r-tPA | Activase; Alteplase; recombinant tissue plasminogen activator |
| rt-PA | Alteplase |
| RT-PCR | reverse transcription-polymerase chain reaction |
| RTS | poikiloderma congenitale; Rothmund-Thomson syndrome |
| RTX | resiniferatoxin |
| Ru-106 | ruthenium Ru 106 |
| rV-5T4 VAC | recombinant modified vaccinia Ankara-5T4 vaccine |
| rV-B7.1 vaccine | recombinant vaccinia-B7.1 vaccine |
| rV-MUC-1 | recombinant vaccinia-MUC1 vaccine |
| rV-NY-ESO-1 | recombinant vaccinia-NY-ESO-1 vaccine |
| rV-TRICOM | recombinant vaccinia-TRICOM vaccine |