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Cryptosporidium parvum oocysts

Phase 2

Cryptosporidiosis | Monoclonal antibody | Infectious Disease |Novartis AG|Last Updated: Aug 19, 2026

Target and mechanism

ModalityMonoclonal antibody

Also known as Cryptosporidium parvum oocysts (ABO809)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment80

FDA Designations

No designations recorded

Clinical trial landscape

Cryptosporidium parvum oocysts · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT07249463Study Testing the Efficacy, Safety, and Tolerability of EDI048 in Cryptosporidium Infection Model in Healthy AdultsCryptosporidiosis
RECRUITING80 Analytics
PHASE2RECRUITING
Study Testing the Efficacy, Safety, and Tolerability of EDI048 in Cryptosporidium Infection Model in Healthy Adults
CryptosporidiosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Average stool grade after the initiation of EDI048 or placebo treatment
Day 3, Day 4 and Day 5

To determine the efficacy of EDI048 vs. placebo in healthy volunteers to reduce severity or resolve diarrhea.

Percentage of Participants With Cryptosporidium Infection From 72 Hours to 10 Days Post ABO809 Oral Administration
At ≥72 hours post-administration (or sooner if associated with symptoms suggestive of diarrheal illness) up to Day 10 (inclusive).

Cryptosporidium infection was measured by examining the presence of a Cryptosporidium antigen in stool using a commercially available diagnostic Enzyme Immunoassay (EIA) test. Up to 3 stool samples per day were collected, each separated by approximately 4-hour intervals, were analyzed by EIA for parasitological assessment of oocyst shedding.

Secondary Endpoints

Maximum stool grade after the initiation of EDI048 or placebo treatment
Day 3, Day 4 and Day 5
Time to resolution of clinical diarrheal illness
up to Day 35
Number of participants with associated gastrointestinal symptoms
up to Day 35
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
EDI048EXPERIMENTALParticipants will receive ABO809 as a single oral dose. If participant is symptomatic, then he/she would be randomized to get EDI048 administered orally.
PlaceboPLACEBO_COMPARATORParticipants will receive ABO809 as a single oral dose. If participant is symptomatic, then he/she would be randomized to get placebo administered orally.
ABO809EXPERIMENTALParticipants will receive ABO809 at a single oral dose of 1x10\^4 oocysts. Other doses such as 1x10\^6 oocysts may be considered to optimize the model

Interventions

NameTypeDescription
Cryptosporidium parvum oocysts (ABO809)BIOLOGICALABO809 oral suspension, single dose
EDI048DRUGEDI048 administered orally
PlaceboOTHERPlacebo administered orally
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Eligibility Criteria

Age Range18 Years to 50 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: * Signed informed consent must be obtained prior to participation in the study. * Ability to communicate well with the Investigator, and to understand and comply with the requirements of the study. * Male and female participants must be between 18 to 50 years of age and in good ...

Countries:United States
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Recent Changes (Last 90 Days)

LOWAug 20, 2026NCT07249463primaryCompletionDate: changed
LOWAug 20, 2026NCT07249463primaryCompletionDate: changed
LOWAug 20, 2026NCT07249463primaryCompletionDate: changed
LOWAug 20, 2026NCT07249463primaryCompletionDate: changed
LOWJul 20, 2026NCT07249463Enrollment: 96 → 80
LOWJul 20, 2026NCT07249463Enrollment: 96 → 80

Frequently asked questions about Cryptosporidium parvum oocysts

What is Cryptosporidium parvum oocysts used for?

Cryptosporidium parvum oocysts, also known as ABO809, is an investigational monoclonal antibody being developed for Cryptosporidium infection and cryptosporidiosis. It is currently in Phase 2 clinical development and is not yet approved by the FDA.

What does Cryptosporidium parvum oocysts target?

Cryptosporidium parvum oocysts is a monoclonal antibody, but its specific molecular target has not been disclosed. It is being studied for its ability to treat Cryptosporidium infection and cryptosporidiosis.

Who makes Cryptosporidium parvum oocysts?

Cryptosporidium parvum oocysts is being developed by Novartis AG, which trades under the ticker NVS. The drug is currently in Phase 2 clinical trials.

What phase is Cryptosporidium parvum oocysts in?

Cryptosporidium parvum oocysts is in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA. A Phase 1 trial has been completed, and a Phase 2 trial is currently recruiting participants.

What clinical trials is Cryptosporidium parvum oocysts in?

Cryptosporidium parvum oocysts has one completed Phase 1 trial (NCT05036668) and one recruiting Phase 2 trial (NCT07249463). The Phase 2 trial is testing the efficacy, safety, and tolerability of EDI048 in a Cryptosporidium infection model in healthy adults.

Is Cryptosporidium parvum oocysts the same as ABO809?

Yes, Cryptosporidium parvum oocysts is also known as ABO809. The drug is being studied under both names in clinical trials for cryptosporidiosis.