Table 1.
Therapeutic intervention | Countries | No. of trials | No. of RCTs (% of trials per intervention) | Additional agents tested in the same interventional arm |
---|---|---|---|---|
TCMs | China | 92 | 61 (66.3) | IFNα, LPV/r, ribavirin, chloroquine, umifenovir, ulinastatin |
Antimalaria drugs (hydroxychloroquine, chloroquine, dihydroartemisinin piperaquine) | China, France, Germany, Mexico, Norway, Spain, Brazil, Canada | 35 | 30 (85.7) | Azithromycin, LPV/r, DRV/r or c, favipiravir, oseltamivir, umifenovir, IFNα |
Lopinavir ± ritonavir (LPV ± r) | China, Thailand, Hong Kong, UK, Europe, South Korea, Canada | 32 | 30 (93.8) | Chloroquine, IFNα, IFNβ, novaferon, thymosin a1, FTC/TAF, ribavirin, ebastine, oseltamivir, favipiravir, TCM |
Cell therapy | China, USA, Brazil, Jordan | 30 | 19 (63.3) | Ruxolitinib |
Interferon (IFNα, IFNα2β, IFNβ, rSIFN-co) | China, UK, Hong Kong, Europe | 22 | 21 (95.4) | Umifenovir, dihydroartemisinine piperaquine, TCM, bromhexine, favipiravir, LPV/r, ribavirin, ebastine, danoprevir/r, thalidomide, methylprednisolone, TTF2 |
Anti-IL-6 mAb (tocilizumab, sarilumab) | China, Italy, France, Switzerland, Denmark, USA, Canada, Global | 13 | 8 (61.5) | Favipiravir, adalimumab |
Dietary/Supportive | China, Egypt | 14 | 12 (85.7) | N/A |
Corticosteroids | China, UK, Italy | 11 | 9 (81.8) | IFNα umifenovir, thalidomide |
Umifenovir | China | 11 | 11 (100) | novaferon, IFNα, IFNα2β, dihydroartemisinine piperaquine, bromhexine, favipiravir, thalidomide, methylprednisolone |
Convalescent plasma | China, Italy | 10 | 6 (60) | N/A |
Adjuvant device | China | 10 | 3 (30) | N/A |
Favipiravir | China, Thailand | 9 | 9 (100) | Tocilizumab, bromhexine, IFNα, umifenovir, (hydroxy)chloroquine, LPV/r, DRV/r |
Remdesivir | Global, Europe, USA, China | 8 | 7 (87.5) | Hydroxychloroquine |
Ventilation/Oxygenation strategies | China | 7 | 0 (0) | N/A |
Macrolides (azithromycin, carrimycin) | China, Brazil, Denmark | 4 | 4 (100) | Hydroxychloroquine |
Inhaled gases | China, USA, Italy | 4 | 4 (100) | N/A |
JAK inhibitors (jakotinib, ruxolitinib, baricitinib) | China, Italy, Canada | 4 | 2 (50) | Cell therapy, ritonavir |
ACE inhibitor/ARBs | China, USA | 3 | 2 (66.7) | N/A |
Azvudine | China | 3 | 1 (33.3) | N/A |
Danoprevir/ritonavir | China | 3 | 3 (100) | IFN |
Darunavir/cobicistat (DRV/r) | China, Thailand | 3 | 3 (100) | Thymosin a1, oseltamivir, hydroxychloroquine, favipiravir |
Pirfenidone | China | 3 | 3 (100) | N/A |
Anti-PD-1 mAb | China | 3 | 3 (100) | N/A |
Oseltamivir | Thailand, China | 3 | 3 (100) | Hydroxychloroquine, DRV/r, LPV/r |
Thymosin a1 | China | 3 | 3 (100) | DRV/c, LPV/r |
Adalimumab | China | 2 | 2 (100) | Tocilizumab |
Bevazicumab | China, Italy | 2 | 1 (50) | N/A |
Colchicine | Italy, Canada | 2 | 2 (100) | N/A |
Novaferon | China | 2 | 2 (100) | LPV/r, umifenovir |
Ribavirin | China, Hong Kong | 2 | 2 (100) | IFN, LPV/r |
Thalidomide | China | 2 | 2 (100) | IFNα, umifenovir, methylprednisolone |
Ulinastatin | China | 2 | 1 (50) | TCM |
ASC09/ritonavir | China | 2 | 2 (100) | N/A |
Intravenous Immunoglobulin | China | 2 | 2 (100) | N/A |
Acetylcysteine | China | 1 | 1 (100) | N/A |
Antiviral peptide LL-37 | China | 1 | 0 (0) | N/A |
Baloxavir marboxil | China | 1 | 1 (100) | N/A |
Bismuth potassium | China | 1 | 1 (100) | N/A |
Bronchoscopic alveolar lavage | China | 1 | 0 (0) | N/A |
CD24Fc | USA | 1 | 1 (100) | N/A |
Dipyridamole | China | 1 | 1 (100) | N/A |
Ebastine | China | 1 | 1 (100) | IFNα, LPV/r |
Eculizumab | N/A | 1 | 0 (0) | N/A |
Enoxaparin | China | 1 | 1 (100) | N/A |
Escin | Italy | 1 | 0 (0) | N/A |
Fingolimod | China | 1 | 0 (0) | N/A |
FTC/TAF | China | 1 | 1 (100) | LPV/r |
hrIL-2 | China | 1 | 1 (100) | N/A |
Inactivated mycobacterial vaccine | China | 1 | 1 (100) | N/A |
Itraconazole | Belgium | 1 | 1 (100) | N/A |
Ixekizumab | China | 1 | 1 (100) | IFNα, ribavirin, chloroquine, LPV/r, umifenovir |
Leflunomide | China | 1 | 1 (100) | N/A |
M1 | China | 1 | 1 (100) | N/A |
Polyinosinic/polycytidylic acid | China | 1 | 1 (100) | N/A |
rhG-CSF | China | 1 | 1 (100) | N/A |
Sargramostin (GM-CSF) | Belgium | 1 | 1 (100) | N/A |
Sildenafil | China | 1 | 0 (0) | N/A |
Siltuximab | Italy | 1 | 0 (0) | N/A |
Suramin | China | 1 | 0 (0) | N/A |
T89 | N/A | 1 | 1 (100) | N/A |
TFF-2 | China | 1 | 1 (100) | IFN-κ |
TMPRSS2 inhibitor (camostat mesylate) | Denmark | 1 | 1 (100) | N/A |
Tranilast | China | 1 | 1 (100) | N/A |
VIP | USA, Israel | 1 | 1 (100) | N/A |
vMIP | China | 1 | 0 (0) | N/A |
Meplazumab (anti-CD147) | China | 1 | 1 (100) | N/A |
Sodium Aescinate | China | 1 | 1 (100) | N/A |
Triazavirin | China | 1 | 1 (100) | N/A |
ACE, angiotensin converting enzyme; anti-PD-1 mAb, Anti Program Cell Death Protein-1 monoclonal antibody; ARBs, angiotensin II receptor blockers; CD24Fc, CD24 extracellular domain-IgG1 Fc domain recombinant fusion protein; DRV/r or c, darunavir/ritonavir or cobicistat; FTC/TAF, emtricitabine/tenofovir alafenamide; GM-CSF, granulocyte macrophage-colony stimulating factor; hrIL-2, human recombinant interleukin 2; IFΝα, interferon alpha; IFNβ, interferon beta; IFNκ, interferon kappa; IL, interleukin; JAK, Janus kinases; LPV/r, lopinavir/ritonavir; M1, type i macrophage; N/A, not applicable; RCTs, randomized controlled trials; rhG-CSF, recombinant human granulocyte-colony stimulating factor; TCMs, traditional Chinese medicines; TMPRSS2, transmembrane protease serine 2; TTF-2, transcription termination factor 2; VIP, vasoactive intestinal peptide; vMIP, viral macrophage inflammatory protein.