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A phase II, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety and immunogenicity of Neovacs’TNFa-Kinoid in adult subjects with Crohn’s Disease

A phase II, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety and immunogenicity of Neovacs’TNFa-Kinoid in adult subjects with Crohn’s Disease

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2010-019996-32-BE
Enrollment
132
Registered
2010-10-04
Start date
2011-01-12
Completion date
Unknown
Last updated
2017-08-21

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

Conditions

Crohn’s Disease MedDRA version: 14.0 Level: PT Classification code 10011401 Term: Crohn's disease System Organ Class: 10017947 - Gastrointestinal disorders

Interventions

Product Name: TNF-Kinoid Product Code: TNF-K Pharmaceutical Form: Emulsion for injection INN or Proposed INN: Not assigned yet Current Sponsor code: TNFa-Kinoid or TNFa-K or Kinoid Concentration unit:

Sponsors

Neovacs SA
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male or female aged 18 to 65 years, inclusive. 2. Have had a diagnosis of Crohn’s disease for at least 6 months. 3. Moderate to severe active Crohn’s disease defined as a Crohn’s Disease Activity Index (CDAI) score = 220 and = 450, and presence of mucosal ulcerations in at least 2 segments, or ulcerations on = 10% of the mucosal surface if only one segment is involved. 4. Either have developed secondary resistance to one or two anti-TNFa therapy. Secondary resistance must have followed at least 6 months of continuous anti-TNFa therapy during which a positive clinical response has been observed, according to the Investigator. and/or Have developed intolerance to one or two anti-TNFa treatment, provided that the observed adverse events are thought to be unrelated to the primary pharmacological effect of these agents (i.e. TNFa blockade). Subjects can have received one or more anti-TNFa agent, and must have discontinued this treatment as follows: •Infliximab: a wash-out period of 8 weeks prior to the first administration of study drug; •Adalimumab: a wash-out period of 4 weeks prior to the first administration of study drug; •Certolizumab: a wash-out period of 8 weeks prior to the first administration of study drug; 5. If receiving the medications listed below, must meet the outlined criteria: •Systemic corticosteroids: up to 25 mg/day of prednisone or equivalent, ongoing for at least 8 weeks, and with a stable dose for at least 2 weeks prior to the first administration of study drug; •Budesonide: up to 6 mg/day, ongoing for at least 8 weeks, and with a stable dose for at least 2 weeks prior to the first administration of study drug; •Methotrexate: up to 25 mg/week, ongoing for at least 8 weeks, and with a stable dose for at least 4 weeks prior to the first administration of study drug; •Azathioprine: up to 2.5 mg/kg/day, ongoing for at least 8 weeks, and with a stable dose for at least 4 weeks prior to the first administration of study drug; •Mercaptopurine: up to 1.5 mg/kg/day, ongoing for at least 8 weeks, and with a stable dose for at least 4 weeks prior to the first administration of study drug; •Antibiotics (metronidazole at 15-20 mg/kg per day and/or ciprofloxacin 500 mg bid) are allowed if ongoing for at least 4 weeks, and with a stable dose for at least 2 weeks prior to the first administration of study drug; •Sulfasalazine and mesalazine ongoing for at least 8 weeks, and with a stable dose of maximum 4g per day for at least 4 weeks prior to the first administration of study drug Are the trial subjects under 18? no 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 132 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Primary non-response to a previously received treatment directed against TNFa Or Intolerance related to the primary pharmacological effect of anti-TNFa such as for instance, but not limited to, severe or opportunistic infections and demyelinating or autoimmune diseases. 2. History of severe systemic bacterial, fungal, viral, or parasitic infections within the 3 months prior to screening; or the occurrence of any acute infection within 2 weeks of the first administration of study drug. 3. Treatment with more than 2 doses over 30 mg of rectally administered corticosteroids in the 14 days preceding the first administration of study drug. 4. Treatment with immunosuppressive or immunomodulatory drugs, including, but not limited to: •B-cell depleting therapy (e.g., anti-CD20, anti-CD22) within 1 year of the first administration of study drug; •Cyclophosphamide within 12 weeks of the first administration of study drug; •Cyclosporine within 12 weeks of the first administration of study drug; •TNFa blockers other than infliximab, adalimumab or certolizumab within 12 weeks or 5 half lives of the first administration of study drug, whichever is longer; •Biological agents other than TNFa blockers within 12 weeks or 5 half lives of the first administration of study drug, whichever is longer.

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of the study is to assess the clinical efficacy of TNF-K in adult subjects with moderate to severe active CD. Specifically, the study will assess the induction of clinical remission (CDAI=150);Secondary Objective: • To assess clinical response by CDAI (CDAI-70 and CDAI-100) • To assess mucosal improvement and healing by ileocolonoscopy • To assess changes in biological markers of disease activity • To assess microscopic and biological changes in ileocolonic mucosal tissue • To evaluate the safety of TNF-K treatment in subjects with moderate to severe active CD • To evaluate the anti-TNF-a and anti-Keyhole Limpet Hemocyanin (anti-KLH) antibody responses induced by TNF K • To evaluate the neutralizing anti-TNF-a antibody response induced by TNF-K ;Primary end point(s): Efficacy The same primary efficacy endpoint will be used for the interim and primary analyses, i.e., clinical remission, defined as a CDAI score = 150 points at week 8.;Timepoint(s) of evaluation of this end point: Week 8

Secondary

MeasureTime frame
Secondary end point(s): 1. Clinical responses, defined as a decrease of at least 70 points (CDAI- 70)and at least 100 points (CDAI-100) in the CDAI score at week 8 vs baseline 2. Endoscopic response, defined as a reduction of at least 50% in the Crohn's Disease Endoscopic Index of Severity (CDEIS) score or in the Simple Endoscopic Score for Crohn's Disease (SES-CD) at week 12 vs baseline 3. Mucosal healing defined as the disappearance of all ulcerations at week 12 4. Steroid sparing and steroid-free clinical remission by week 28 5. Biological response as defined by a decrease or normalization of calprotectin levels in stool 6. Biological response as defined by a decrease or normalization of CRP levels in serum 7. Time to first occurence of clinical response and of clinical remission 8. Changes in the Quality of Life, as measured by the Inflammatory Bowel Disease Questionnaire (IBDQ). 9. Association between anti-TNFa antibody levels and changes in the CDAI and the endoscopic scores 10. Association between anti-drug-antibodies (ADA) at baseline and changes in the CDAI and the endoscopic scores.;Timepoint(s) of evaluation of this end point: 1. week 8 2. week 12 3. week 12 4. week 28 8. 4 and 8 weeks after each study product administration.

Countries

Belgium, Bulgaria, Croatia, Czech Republic, France, Germany, Hungary, Netherlands, Romania

Contacts

Public ContactChief Medical Officer

Neovacs

pvandepapeliere@neovacs.com+33 1 53 10 26 40

Outcome results

None listed

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