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Table 2 Susceptibility of mycobacterial strains to CLA, CLO, and RIF at their concentrations in the MIC of CLA–CLO–RIF (RHB-104 active ingredients)

From: RHB-104 triple antibiotics combination in culture is bactericidal and should be effective for treatment of Crohn’s disease associated with Mycobacterium paratuberculosis

Organism

Source

MIC

Comparison analysis

CLA–CLO–RIF

CLA (63.3 %)

CLO (6.7 %)

RIF (30 %)

μg/mL

μg/mL

Susceptibility

μg/mL

Susceptibility

μg/mL

Susceptibility

Clinical MAP strains

 MAP UCF 3

Tissue

0.25

0.158

R

0.017

R

0.075

R

 MAP UCF 4

Tissue

0.25

0.633

R

0.067

R

0.3

R

 MAP UCF 5

Tissue

0.25

0.633

R

0.067

R

0.3

R

 MAP UCF 7

Tissue

0.25

0.633

R

0.067

R

0.3

R

 MAP UCF 8

Tissue

0.25

0.633

R

0.067

R

0.3

R

 MAP Strain 1

Milk

0.25

0.633

R

0.067

R

0.3

R

 MAP Strain 3

Tissue

0.25

0.633

R

0.067

R

0.3

R

 MAP Strain 7

Tissue

0.25

0.633

R

0.067

R

0.3

R

 MAP Strain 8B

Blood

0.25

0.633

R

0.067

R

0.3

R

 MAP MS 137

Tissue

4

2.532

R

0.268

R

1.2

R

 MAP MS 185

Tissue

4

2.532

R

0.268

R

1.2

R

 MAP Para 18

ATCC 19698

0.25

0.633

R

0.067

R

0.3

R

 MAP Ben

ATCC 43544

0.25

0.633

R

0.067

R

0.3

R

 MAP Kay

ATCC C286

0.25

0.633

R

0.067

R

0.3

R

 MAP Linda

ATCC 43015

0.25

0.633

R

0.067

R

0.3

R

Non-MAP strains

 M. avium

ATCC 25291

4

2.532

R

0.268

R

1.2

R

 M. avium JF 5

Faeces

4

2.532

R

0.268

R

1.2

R

 M. avium JF 6

Faeces

4

2.532

R

0.268

R

1.2

R

 M. avium JF 8

Blood

4

2.532

R

0.268

R

1.2

R

 M. intracellulare LM1-A

Sputum

4

3.798

R

0.402

R

1.8

R

 M-Smegmatis

ATCC 27199

6

3.798

R

0.402

R

1.8

R

 M. chelonae subsp. chelonea

 

>10a

6.33

R

0.67

R

3

R

 M. fortuitum subsp. fortuitum

 

>10a

6.33

R

0.67

R

3

R

  1. MIC minimum inhibitory concentration, CLA clarithromycin, CLO clofazimine, RIF rifabutin, Suscep susceptibility
  2. aMIC was greater than 10 μg/mL and no higher drug concentrations were analyzed