Time-Kill Kinetics of the Novel Echinocandin CD101 for Azole- - - PowerPoint PPT Presentation

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Time-Kill Kinetics of the Novel Echinocandin CD101 for Azole- - - PowerPoint PPT Presentation

Time-Kill Kinetics of the Novel Echinocandin CD101 for Azole- Susceptible and -Resistant Candida spp. at pH 4 in Vagina-Simulative Medium Jeff Locke, PhD Amanda Almaguer, BSc Ken Bartizal, PhD August 13, 2016 IDSOG Annual Meeting


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SLIDE 1

Time-Kill Kinetics of the Novel Echinocandin CD101 for Azole- Susceptible and -Resistant Candida

  • spp. at pH 4 in Vagina-Simulative

Medium

Jeff Locke, PhD Amanda Almaguer, BSc Ken Bartizal, PhD

August 13, 2016 IDSOG Annual Meeting

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SLIDE 2

Forward-Looking Statements

These slides and the accompanying oral presentation (the “Presentation”) contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Such statements include, but are not limited to, statements regarding the effectiveness, safety, dosing, potential to treat infections and other attributes of CD101 topical, as well as related information regarding the effectiveness and treatment protocols for competitive therapies. Risks that contribute to the uncertain nature of the forward-looking statements include: the success and timing of Cidara’s preclinical studies, clinical trials and other research and development activities; regulatory developments in the United States and foreign countries; changes in Cidara’s plans to develop and commercialize its product candidates; Cidara’s ability to obtain additional financing; Cidara’s ability to

  • btain and maintain intellectual property protection for its product candidates; and the loss of key scientific or

management personnel. These and other risks and uncertainties are described more fully in Cidara’s Form 10-K and Form 10-Q, each as most recently filed with the United States Securities and Exchange Commission (SEC), under the heading “Risk Factors.” All forward-looking statements contained in the Presentation speak only as of the date on which they were made. Cidara undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

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SLIDE 3

Disclosures

§ Jeff Locke, Amanda Almaguer and Ken Bartizal are employees and shareholders of Cidara Therapeutics, Inc.

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SLIDE 4

Background

§ 75% of women will experience at least one VVC episode in their lifetime; 5-8% of women have recurrent VVC (RVVC) § VVC is caused by Candida albicans (~85%) and non-albicans (~15%) § Azole resistance is increasing as are non-albicans Candida § Azoles remain the predominant therapeutic class § Oral fluconazole used despite relapse, drug-drug interactions and pregnancy risk § No FDA-approved therapy for RVVC and no novel agent for VVC in >20 years

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SLIDE 5

MIC90 (µg/mL)*

CD101 – A novel echinocandin antifungal

§ Echinocandins have potent fungicidal activity against Candida species § However, current echinocandins have limited chemical stability and not suitable for topical formulation/application § Structural modification gives CD101 remarkable chemical and biological stability § CD101 could offer a new fungicidal therapy for VVC

*JMI 2015 SENTRY international surveillance study data

Species CD101 fluconazole

  • C. albicans (n=304)

0.06 0.25

  • C. glabrata (n=121)

0.12 16

  • C. parapsilosis (n=83)

2 2

  • C. tropicalis (n=55)

0.06 0.5

  • C. krusei (n=14)

0.06 32

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SLIDE 6

CD101 fungicidal activity vs. C. albicans biofilm

§ CD101 demonstrates a significant, dose-dependent reduction in

  • C. albicans biofilm thickness and metabolic activity

Control ~43 µm 0.25 µg/mL ~26 µm 1 µg/mL ~24 µm 0.0625 µg/mL ~32 µm

C o n tro l 0 .0 6 2 5 0 .2 5 1 1 0 2 0 3 0 4 0 5 0

C D 1 0 1 C o n c . (u g /m l) B io film T h ic k n e s s (µ m )

C o n tro l 0 .0 6 2 5 0 .2 5 1 0 .0 0 .1 0 .2 0 .3 0 .4

C D 1 0 1 C o n c . (u g /m l) X T T O D 4 9 2 n m

Biofilm metabolic activity

CD101 (µg/mL) CD101 (µg/mL)

Biofilm thickness

(M. Ghannoum, unpublished data, 2016)

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SLIDE 7

Study rationale

§ How is the potency and fungicidal activity of CD101 impacted by physiological conditions of the vaginal environment? § How does CD101 activity compare with azoles vs. non-albicans Candida and/or azole-R Candida?

Conduct MIC and in vitro time-kill assays in vagina- simulative medium at pH 4.2 vs. C. albicans and non- albicans Candida, including azole-S and azole-R strains

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SLIDE 8

Study drugs and Candida strains

Species Strain Susceptibility to FLU

  • C. albicans

ATCC 44858 S DPL001 R R357 R

  • C. glabrata

CG01* S ATCC 200918 R MMX 7070 R

  • C. parapsilosis

CP02* S CP01* R MMX 7370 R

  • C. tropicalis

CT02* S MMX 7255 R MMX 7525 R

  • C. krusei

ATCC 6258 R ATCC 14243 R

§ Terconazole (TER) as comparator (topical and Rx-only) § Similar quantities of CD101 and TER administered (240 and 120-240 mg, respectively) § Selected 1 azole-S and 2 azole-R strains for 4 Candida species § C. krusei is intrinsically azole-R so 2 strains were used § Mimic VVC physiological conditions with vagina-simulative medium1 (VSM) at pH 4.2

* VVC clinical isolate

1Moosa MY, Sobel JD, Elhalis H, Du W, Akins RA. “Fungicidal activity of fluconazole against Candida albicans in a synthetic vagina-simulative medium”

  • 2004. Antimicrob Agents Chemother. 48:161-167.
slide-9
SLIDE 9

MIC values for VSM (pH 4.2) vs. RPMI (pH 7.0)

MIC (µg/mL) Species Strain FLU (S/R) CD101 TER FLU VSM RPMI VSM RPMI VSM RPMI

  • C. albicans

ATCC 44858 S 0.06 0.03 2 32 1 1 DPL001 R 0.03 0.06 64 32 128 >128 R357 R 0.5 0.25 4 32 0.5 >128

  • C. glabrata

CG01 S 0.06 0.06 8 0.015 16 1 ATCC 200918 R* 0.125 0.06 >128 1 >128 32 MMX 7070 R 0.25 0.03 >128 2 >128 64

  • C. parapsilosis

CP02 S 2 2 4 0.03 2 0.25 CP01 R 2 2 32 0.125 >128 16 MMX 7370 R 2 1 32 0.5 64 64

  • C. tropicalis

CT02 S 0.06 0.06 4 4 2 0.5 MMX 7255 R 0.125 0.03 >128 64 >128 64 MMX 7525 R 0.125 0.06 >128 4 >128 128

  • C. krusei

ATCC 6258 R 0.125 0.06 16 0.5 64 32 ATCC 14243 R 0.06 0.06 32 0.5 64 32

*CLSI MIC value of 32 µg/mL derived in this study is characterized as “susceptible-dose dependent” per CLSI interpretive criteria.

§ Trend towards improved FLU activity for C. albicans in VSM, but higher MICs for other species

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SLIDE 10

MIC values for VSM (pH 4.2) vs. RPMI (pH 7.0)

MIC (µg/mL) Species Strain FLU (S/R) CD101 TER FLU VSM RPMI VSM RPMI VSM RPMI

  • C. albicans

ATCC 44858 S 0.06 0.03 2 32 1 1 DPL001 R 0.03 0.06 64 32 128 >128 R357 R 0.5 0.25 4 32 0.5 >128

  • C. glabrata

CG01 S 0.06 0.06 8 0.015 16 1 ATCC 200918 R* 0.125 0.06 >128 1 >128 32 MMX 7070 R 0.25 0.03 >128 2 >128 64

  • C. parapsilosis

CP02 S 2 2 4 0.03 2 0.25 CP01 R 2 2 32 0.125 >128 16 MMX 7370 R 2 1 32 0.5 64 64

  • C. tropicalis

CT02 S 0.06 0.06 4 4 2 0.5 MMX 7255 R 0.125 0.03 >128 64 >128 64 MMX 7525 R 0.125 0.06 >128 4 >128 128

  • C. krusei

ATCC 6258 R 0.125 0.06 16 0.5 64 32 ATCC 14243 R 0.06 0.06 32 0.5 64 32

*CLSI MIC value of 32 µg/mL derived in this study is characterized as “susceptible-dose dependent” per CLSI interpretive criteria.

§ TER has similar trend as FLU towards improved activity for C. albicans in VSM, but higher MICs for other species

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SLIDE 11

MIC values for VSM (pH 4.2) vs. RPMI (pH 7.0)

MIC (µg/mL) Species Strain FLU (S/R) CD101 TER FLU VSM RPMI VSM RPMI VSM RPMI

  • C. albicans

ATCC 44858 S 0.06 0.03 2 32 1 1 DPL001 R 0.03 0.06 64 32 128 >128 R357 R 0.5 0.25 4 32 0.5 >128

  • C. glabrata

CG01 S 0.06 0.06 8 0.015 16 1 ATCC 200918 R* 0.125 0.06 >128 1 >128 32 MMX 7070 R 0.25 0.03 >128 2 >128 64

  • C. parapsilosis

CP02 S 2 2 4 0.03 2 0.25 CP01 R 2 2 32 0.125 >128 16 MMX 7370 R 2 1 32 0.5 64 64

  • C. tropicalis

CT02 S 0.06 0.06 4 4 2 0.5 MMX 7255 R 0.125 0.03 >128 64 >128 64 MMX 7525 R 0.125 0.06 >128 4 >128 128

  • C. krusei

ATCC 6258 R 0.125 0.06 16 0.5 64 32 ATCC 14243 R 0.06 0.06 32 0.5 64 32

*CLSI MIC value of 32 µg/mL derived in this study is characterized as “susceptible-dose dependent” per CLSI interpretive criteria.

§ CD101 has potent MIC values across all species that are mostly unchanged or shift 2-fold higher in VSM

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SLIDE 12

Time-kill assay overview

§ In vitro measure of fungal killing over time § Initial inoculum mid-105 colony-forming units (CFU)/mL § Measured CFU at 0, 1, 3, 6, 9, 24, 48, and 72 h § CD101 and TER tested at 0, 2, 8, 32, 128 µg/mL § Fungicidal: ≥3-log CFU reduction, Fungistatic: <3-log CFU reduction

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 tim e (h ) C F U /m L

Example time-kill plot

fungistatic activity fungicidal activity cidality threshold limit of detection drug-free growth control

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SLIDE 13

Time-kill assay:

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s A T C C 4 4 8 5 8

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . a lb ic a n s A T C C 4 4 8 5 8

tim e (h ) C F U /m L

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s D P L 0 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s R 3 5 7

tim e (h ) C F U /m L

FLU-S FLU-R

CD101 - ATCC 44858 TER - ATCC 44858 CD101 – DPL001 CD101 – R357

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SLIDE 14

Time-kill assay: C. albicans

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s A T C C 4 4 8 5 8

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . a lb ic a n s A T C C 4 4 8 5 8

tim e (h ) C F U /m L

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s D P L 0 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s R 3 5 7

tim e (h ) C F U /m L

FLU-S FLU-R

CD101 - ATCC 44858 TER - ATCC 44858 CD101 – DPL001 CD101 – R357

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SLIDE 15

Time-kill assay: C. albicans

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s A T C C 4 4 8 5 8

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . a lb ic a n s A T C C 4 4 8 5 8

tim e (h ) C F U /m L

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s D P L 0 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . a lb ic a n s R 3 5 7

tim e (h ) C F U /m L

FLU-S FLU-R

CD101 - ATCC 44858 TER - ATCC 44858 CD101 – DPL001 CD101 – R357

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SLIDE 16

Time-kill assay: C. glabrata

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . g la b ra ta C G 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . g la b ra ta C G 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . g la b ra ta A T C C 2 0 0 9 1 8

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . g la b ra ta M M X 7 0 7 0

tim e (h ) C F U /m L

CD101 – CG01 TER – CG01 CD101 – ATCC 200918 CD101 – MMX 7070

FLU-S FLU-R

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SLIDE 17

Time-kill assay: C. glabrata

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . g la b ra ta C G 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . g la b ra ta C G 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . g la b ra ta A T C C 2 0 0 9 1 8

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . g la b ra ta M M X 7 0 7 0

tim e (h ) C F U /m L

CD101 – CG01 TER – CG01 CD101 – ATCC 200918 CD101 – MMX 7070

FLU-S FLU-R

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SLIDE 18

Time-kill assay: C. tropicalis

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . tro p ic a lis C T 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . tro p ic a lis C T 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . tro p ic a lis M M X 7 2 5 5

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . tro p ic a lis M M X 7 5 2 5

tim e (h ) C F U /m L

CD101 – CT02 TER – CT02 CD101 – MMX 7255 CD101 – MMX 7525

FLU-S FLU-R

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SLIDE 19

Time-kill assay: C. tropicalis

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . tro p ic a lis C T 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . tro p ic a lis C T 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . tro p ic a lis M M X 7 2 5 5

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . tro p ic a lis M M X 7 5 2 5

tim e (h ) C F U /m L

CD101 – CT02 TER – CT02 CD101 – MMX 7255 CD101 – MMX 7525

FLU-S FLU-R

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SLIDE 20

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . p a ra p s ilo s is C P 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . p a ra p s ilo s is C P 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . p a ra p s ilo s is C P 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . p a ra p s ilo s is M M X 7 3 7 0

tim e (h ) C F U /m L

Time-kill assay: C. parapsilosis

CD101 – CP02 TER – CP02 CD101 – CP01 CD101 – MMX 7370

FLU-S FLU-R

slide-21
SLIDE 21

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . p a ra p s ilo s is C P 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

T E R - C . p a ra p s ilo s is C P 0 2

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . p a ra p s ilo s is C P 0 1

tim e (h ) C F U /m L 1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . p a ra p s ilo s is M M X 7 3 7 0

tim e (h ) C F U /m L

Time-kill assay: C. parapsilosis

CD101 – CP02 TER – CP02 CD101 – CP01 CD101 – MMX 7370

FLU-S FLU-R

slide-22
SLIDE 22

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . k ru s e i A T C C 6 2 5 8

tim e (h ) C F U /m L

1 2 2 4 3 6 4 8 6 0 7 2 1 0 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 9

C D 1 0 1 - C . k ru s e i A T C C 1 4 2 4 3

tim e (h ) C F U /m L

Time-kill assay: C. krusei

CD101 – ATCC 6258 CD101 – ATCC 14243

FLU-S FLU-R

***C. krusei is intrinsically FLU-R***

slide-23
SLIDE 23

Time-kill results summary

§ CD101 had fungicidal or near-fungicidal activity against all strains § TER had fungistatic activity against FLU-S C. albicans, C. glabrata,

  • C. tropicalis strains (near-fungicidal activity vs. C. parapsilosis)

Species Strain Susceptibility to FLU CD101 TER

  • C. albicans

ATCC 44858 S CIDAL STATIC DPL001 R CIDAL ND R357 R CIDAL ND

  • C. glabrata

CG01 S CIDAL STATIC ATCC 200918 R CIDAL ND MMX 7070 R CIDAL ND

  • C. parapsilosis

CP02 S CIDAL NEAR-CIDAL CP01 R NEAR-CIDAL ND MMX 7370 R NEAR-CIDAL ND

  • C. tropicalis

CT02 S NEAR-CIDAL STATIC MMX 7255 R CIDAL ND MMX 7525 R CIDAL ND

  • C. krusei

ATCC 6258 R CIDAL ND ATCC 14243 R CIDAL ND

slide-24
SLIDE 24

Conclusions

§ CD101 retained potent MIC values and demonstrated fungicidal activity under in vitro conditions simulating the vaginal environment against all major VVC species, including azole-R strains § Terconazole had higher MIC values and fungistatic activity against all strains evaluated § The potential for CD101 to offer a new therapeutic option for the treatment and prevention of VVC is currently being investigated in a Phase 2 clinical trial

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SLIDE 25

Acknowledgements

§ Dr. Jack Sobel (Wayne State) § Dr. David Perlin (Rutgers) § Dr. Chris Pillar (Micromyx) § Dr. Lynn Miesel (Eurofins) § Dr. Mahmoud Ghannoum (Case Western)