Clinical Trial of Ivermectin Plus Doxycycline for the Treatment of Confirmed Covid-19 Infection

OBJECTIVES:

General objectives:

To observe the benefit (clinical and microbiological) of Ivermectin and Doxycycline in Confirmed Covid 19 cases.

Specific objectives:

1. To observe the clinical outcome in trial group and the placebo group.
2. To observe the duration require controlling viral replication (negative RT-PCR) in the trial and placebo group.
3. To compare the outcome between the two groups.

RATIONALE:

Covid-19 is an emergent pandemic, threatens the life of millions of the people throughout the globe. There is increasing effort of the scientist to unveil a remedy of covid-19. Still it is unsuccessful. At present there is no other alternative other than experimenting the existent drug against the virus. There are several trials going throughout the globe. Among them Ivermectin showed good efficacy in vitro trial. Some clinical trial also proved it beneficial. The Doxycycline also has some anti viral role with its prominent anti-inflammatory role. Synergistic action of the two drugs might be proved some benefit in clinical trial. As both drugs are cheap and less toxic, if it does, it would be the blessing for the poor people of the globe.

METHODOLOGY:

Study type: Interventional Clinical trial Estimated enrollment: 200 participants per group

For superior trial, the formula is:

N=size per group; p=the response rate of standard treatment group; p0= the response rate of new drug treatment group; zx= the standard normal deviate for a one or two sided x; d= the real difference between two treatment effect; δ0= a clinically acceptable margin; S2= Polled standard deviation of both comparison groups.

All parameters were assumed as follows: p =0.40; p0=0.58; α=0.05;β=0.20; δ=0.18; δ0=0.10.

However, we are assuming that lost to follow up or refuse to include in trial will be 20%, that means 24. So at least 150 patients will be allocated randomly and power of this study will be 80%.

Allocation: Randomized Intervention model: Parallel assignment Intervention model description: Patient will be randomized 1:1 to placaebo with standard care and combined doxycycline and ivermectin with standard care.

Blinding: Double blind (The participant and the clinicians/data collectors will be unaware of the treatment the participant receives) Primary purpose: Treatment Official title: A phase III trial to promote recovery from covid 19 with combined Doxycycline and Ivermectin along standard care. Provider of placebo and active ingredients: Popular pharmaceutical limited Dosage of the drugs: Ivermactin 6 mg 2 tab stat, cap Doxycycline 100 mg 1 cap BD 5 days

Data collection technique:

Data will be collected by assigned. trained data collectors (Physician). Patient will be enrolled according to defined inclusion and exclusion criteria in the current research. Informed written consent will be obtained from the patient or their relatives. Each patient participating in the trial will be uniquely identified, and information such as his name, address is recorded in the trial 'subject number list'. Only the principle investigator will be aware about the allocation of the drugs. The patients and the data collectors will be unaware about the group allocation of the drugs. The Data will be reviewed by the co-investigators. It will be managed by principle and co-principle investigators in designated computer.

Clinical assessment (fever, cough, Anorexia, Temperature, pulse, blood pressure, respiratory rate, oxygen saturation) will be done every day. Routine investigation (CBC, ESR, CRP, Creatinine, RBS, SGPT, chest x-ray, D- Dimer) will be done at admission and at day 3, 5, 7, 10 and 14 day. In case of the clinical deterioration it would done according to necessity. RT-PCR will be done at day-0, Day 5, day 7 and day 14.

Standard care: both the experimental and placebo will receive the available standard of care, like-

• Paracetamol, Antihistamine, Cough suppressant, Vitamins
• Oxygen therapy according to indication and need
• Low molecular weight heparin according to indication
• Appropriate other broad spectrum antibiotics
• Other drugs for associated co- morbid condition

Management of the adverse events:

Drugs adverse effect will be monitored by a defined committee. The patient experiencing adverse effect of the drugs will be discontinued from the study. It will be managed with priority to the highest possible level by the hospital authority as well as the investigators.

If the patient progresses from mild to moderate or severe disease, the study will be continued and available management of the appropriate severity will be immediately started. The patient will be monitored closely.

Data analysis:

Data will be analyzed by computer with the help of SPSS (Statistical Package for Social Sciences) version 26. Unpaired t-test would be used for testing quantitative data and for testing qualitative data two sample z- test will be used. Comparing drug outcome in between two groups hazard ratio, Kaplan-Meire curve will be used.

Dropout management: Likelihood based methods such as mixed models will be used to estimate unbiased treatment effects, under assumptions regarding the missingness mechanisms.