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All Studies   Meta Analysis    Recent:   
0 0.5 1 1.5 2+ Recovery 52% Improvement Relative Risk Recovery (b) 3% Viral clearance 3% HCQ  Sobngwi et al.  EARLY TREATMENT  RCT Is early treatment with HCQ beneficial for COVID-19? RCT 187 patients in Cameroon (March - April 2021) Trial compares with doxycycline, results vs. placebo may differ Improved recovery with HCQ (not stat. sig., p=0.44) Sobngwi et al., Cureus, July 2021 Favors HCQ Favors doxycycline

Doxycycline vs Hydroxychloroquine + Azithromycin in the Management of COVID-19 Patients: An Open-Label Randomized Clinical Trial in Sub-Saharan Africa (DOXYCOV)

Sobngwi et al., Cureus, doi:10.7759/cureus.45619 (date from preprint)
Jul 2021  
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HCQ for COVID-19
1st treatment shown to reduce risk in March 2020
*, now known with p < 0.00000000001 from 421 studies, recognized in 42 countries.
No treatment is 100% effective. Protocols combine complementary and synergistic treatments. * >10% efficacy in meta analysis with ≥3 clinical studies.
3,800+ studies for 60+ treatments.
RCT 194 mild/asymptomatic low-risk patients in Cameroon, 97 treated with HCQ+AZ and 97 treated with doxycycline, showing 2.1% symptomatic patients at day 10 with HCQ+AZ, versus 4.3% with doxycycline, without statistical significance. There were only 6 patients with symptoms at day 10. There was no mortality or hospitalization, and no major adverse events.
risk of no recovery, 51.6% lower, RR 0.48, p = 0.44, treatment 2 of 95 (2.1%), control 4 of 92 (4.3%), NNT 45, day 10.
risk of no recovery, 3.2% lower, RR 0.97, p = 1.00, treatment 18 of 95 (18.9%), control 18 of 92 (19.6%), NNT 162, day 3.
risk of no viral clearance, 3.2% lower, RR 0.97, p = 0.88, treatment 32 of 95 (33.7%), control 32 of 92 (34.8%), NNT 91, day 10.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Sobngwi et al., 29 Jul 2021, Randomized Controlled Trial, Cameroon, peer-reviewed, mean age 39.0, 16 authors, study period 16 March, 2021 - 9 April, 2021, dosage 400mg days 1-5, this trial compares with another treatment - results may be better when compared to placebo. Contact:
This PaperHCQAll
Doxycycline is a safe alternative to Hydroxychloroquine + Azithromycin to prevent clinical worsening and hospitalization in mild COVID-19 patients: An open label randomized clinical trial (DOXYCOV)
Eugene Sobngwi, Sylvain Zemsi, Magellan Guewo-Fokeng, Jean-Claude Katte, Charles Kounfack, Liliane Mfeukeu-Kuate, Armel Zemsi, Yves Wasnyo, Antoinette Assiga Ntsama, Arnaud Ndi-Manga, Joelle Sobngwi-Tambekou, William Ngatchou, Charlotte Moussi Omgba, Jean Claude Mbanya, Pierre Ongolo Zogo, Pierre Joseph Fouda
Objective: We aimed to compare the safety and efficacy of a doxycycline-based regimen against the national standard guidelines (Hydroxychloroquine plus Azithromycin) for the treatment of mild symptomatic COVID-19. Methods: We conducted an open-label, randomized, non-inferiority trial, in Cameroon comparing Doxycycline 100mg, twice daily for 7 days versus Hydroxychloroquine, 400 mg daily for 5 days and Azithromycin 500mg at day 1 and 250mg from day 2 through 5, in mild COVID-19 patients. Clinical improvement, biological parameters and adverse events were assessed. The primary outcome was the proportion of clinical cure at day 3, 10 and 30. Non-inferiority was determined by the clinical cure rate between protocols with a 20 percentage points margin. Results: 194 participants underwent randomization and were treated with Doxycycline (n=97) or Hydroxychloroquine-Azithromycin (n=97). At day 3, 74/92 (80.4%) participants on Doxycycline versus 77/95 (81.1%) on Hydroxychloroquine-Azithromycin -based protocols were asymptomatic (p=0.91). At day 10, 88/92 (95.7%) participants on Doxycycline versus 93/95 (97.9%) on Hydroxychloroquine-Azithromycin were asymptomatic (p=0.44). At day 30 all participants were asymptomatic. SARS-CoV2 PCR was negative at Day 10 in 60/92 (65.2%) participants allocated to Doxycycline and 63/95 (66.3%) participants allocated to Hydroxychloroquine-Azithromycin. None of the participants were admitted for worsening of the disease after treatment initiation. Conclusion: Doxycycline 100 mg twice daily for 7 days is as effective and safe as Hydroxychloroquine-Azithromycin, for preventing clinical worsening of mild symptomatic or asymptomatic COVID-19, and achieving virological suppression.
Patient consent Obtained Competing interests The authors declare no competing interests Ethical approval The study received ethical clearance from the Cameroon National Ethics Committee (N° 2020/07/1585/L/CNERSH/SP). The trial was prospectively registered on under number NCT04715295. Author Contribution Statement Contributors: E-S designed the work, acquired funding, implemented the trial, monitored data collection for the whole trial, monitored statistical analysis, drafted the paper, revised the paper and gave final approval to be published. S-Z designed the work, implemented the trial, monitored data collection, wrote the statistical analysis plan, cleaned and analyzed the data, drafted and revised the paper. M-GF designed the work, revised the draft paper. JC-K designed the work, revised the draft paper. CK member of the data safety monitoring board. LM-K member of the data safety monitoring board. AZ designed the work. YW .
Abena, Decloedt, Bottieau, Suleman, Adejumo et al., Chloroquine and Hydroxychloroquine for the Prevention or Treatment of COVID-19 in Africa: Caution for Inappropriate Off-label Use in Healthcare Settings, Am J Trop Med Hyg. juin
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