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An Open-label (OL) Extension Study evaluating the Long-Term Safety of OxabactTM in Subjects with Primary Hyperoxaluria (PH) who participated in the Double-Blind (DB) Efficacy Study - Open label extension study to verify long term safety of OxabactTM , the Phoenix II study

An Open-label (OL) Extension Study evaluating the Long-Term Safety of OxabactTM in Subjects with Primary Hyperoxaluria (PH) who participated in the Double-Blind (DB) Efficacy Study - Open label extension study to verify long term safety of OxabactTM , the Phoenix II study

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-006187-30-GB
Enrollment
36
Registered
2008-02-15
Start date
2008-06-11
Completion date
Unknown
Last updated
2019-11-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

primary hyperoxaluria MedDRA version: 9.1 Level: LLT Classification code 10020703 Term: Hyperoxaluria

Interventions

Product Name: Oxabact (tm) - Oxalobacter formigenes strain HC1 Product Code: OC3 Pharmaceutical Form: Gastro-resistant capsule, hard Current Sponsor cod

Sponsors

OxThera, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. The subject (or legally acceptable representative) must give informed consent (and assent for subjects = 12 years or country specific age as appropriate). For subjects less than 18 years of age, parent or guardian will provide informed consent and the subject will provide witnessed verbal assent 2. All subjects completing the qualifying study (OC3-DB-01 : EudraCT 2007-002328-14) will be eligible for open-label extension study 3. Subjects receiving pyridoxine during the qualifying study (OC3-DB-01) must be willing to remain on the stable dose at entry and during the OL study Are the trial subjects under 18? yes Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Pregnant, lactating, or actively menstruating women and women of child-bearing potential who are not using adequate contraceptive precautions. Sexually active females, unless surgically sterile or at least 2 years post-menopausal, must be using a highly effective contraception (including oral, transdermal, injectable, or implanted contraceptives, IUD, abstinence, use of a condom by the sexual partner, or sterile sexual partner) and must agree to continue using such precautions during the OL extension study. 2. Positive serum pregnancy test 3. Any other abnormal finding such as physical examination or laboratory evaluation, in the opinion of the investigator, is indicative of a disease that would compromise the safety of the subject 4. Subjects not willing to forego other forms of investigational treatment during the OL study 5. Chronic immune suppressive therapy including prednisone at doses greater than 10 mg daily for more than 2 weeks

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the safety of OxabactTM with continued exposure;Secondary Objective: To obtain additional efficacy data with up to 48 weeks continuous exposure to Oxabact™.; Primary end point(s): Safety • Frequency of AEs and SAEs • Abnormal Laboratory Values • Clinically relevant changes in Physical Exams and Vital Signs

Countries

France, Germany, Netherlands, United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026