From the first outbreak in Wuhan (China) in December 2019, until today the number of deaths worldwide due to the coronavirus pandemic exceeds eight hundred thousand people and the number of infected people arises to more than 25 million. No treatment tested worldwide has shown unquestionable efficacy in the fight against COVID 19, according to NICE reports. We have designed an experimental treatment called IDEA based on four affordable drugs already available on the market in Argentina, based on the following rationale: -Ivermectin solution at a relatively high dose to lower the viral load in all stages of COVID 19 -Dexamethasone 4-mg injection, as anti-inflammatory drug to treat hyperinflammatory reaction to COVID-infection -Enoxaparin injection as anticoagulant to treat hypercoagulation in severe cases. -Aspirin 250-mg tablets to prevent hypercoagulation in mild and moderate cases Except for Ivermection oral solution, which was used in a higher dose than approved for parasitosis, all other drugs were used in the already approved dose and indication. Regarding Ivermectin safety, several oral studies have shown it to be safe even when used at daily doses much higher than those approved already. A clinical study has been conducted on COVID-19 patients at Eurnekian Hospital in the Province of Buenos Aires, Argentina. The study protocol and its final outcomes are described in this article. Results were compared with published data and data from patients admitted to the hospital receiving other treatments. None of the patient presenting mild symptoms needed to be hospitalized. Only one patient died (0.59 % of all included patients vs. 2.1 % overall mortality for the disease in Argentina today; 3.1 % of hospitalized patients vs. 26.8 % mortality in published data). IDEA protocol appears to be a useful alternative to prevent disease progression of COVID-19 when applied to mild cases and to decrease mortality in patients at all stages of the disease with a favorable risk-benefit ratio.