| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| line or relapsed patients with Grade 1, 2 or 3a, CD20 , follicular non-Hodgkin s Lymphoma who respond to  rituximab-containing induction therapy. |  | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 6.1 |  
| E.1.2 | Level | HLT |  
| E.1.2 | Classification code | 10016895 |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| To evaluate the safety of rituximab  maintenance therapy following a rituximab-containing induction regimen in first line or relapsed patients with  follicular Non-Hodgkin s Lymphoma. |  | 
| E.2.2 | Secondary objectives of the trial | 
| Further confirm the effectiveness of  rituximab maintenance therapy with respect to Progression  Free Survival  PFS , Event Free Survival  EFS , Time to Next  Lymphoma Treatment  TNLT , Overall survival  OS  and the  partial response  PR  to complete response/complete response  unconfirmed  CR/Cru  conversion rate while on rituximab  maintenance therapy. |  | 
| E.2.3 | Trial contains a sub-study | Information not present in EudraCT | 
| E.3 | Principal inclusion criteria | 
| 1. Signed written informed consent form.  2. Histologically confirmed, CD20 , Grade 1, 2 or 3a follicular  non-Hodgkin s lymphoma.  3. Patients must have received adequate induction therapy  either as first line treatment or patients must have received  adequate induction therapy as treatment for relapsed disease.    Adequate induction therapy is defined as treatment with a  minimum of 8 cycles of rituximab  375 mg/m2 body surface area  BSA   either as monotherapy, or combined with  chemotherapy.    The type of chemotherapy and the number of cycles added to 8 cycles of rituximab is according to the  investigator s judgment  e.g. 6 x CVP   8 x rituximab would be considered adequate for this study .  4. Patients must have a computerized tomography CT  or Positron Emission Tomography  PET  or Magnetic Resonance  Imaging  MRI   documented response to induction therapy  PR, CR or CRu. Response assessment must be made within six weeks of study entry.  5. Induction therapy should have been completed to allow the first rituximab maintenance administration to occur eight to twelve weeks after day 1 of the last induction cycle.    If patients are recovering from chemotherapy related toxicity from the most recent rituximab-containing induction therapy, they may receive their first rituximab maintenance  therapy infusion up to six months after day 1 of the last cycle  of induction therapy.  6. Patients must be   8805; 18 years old.  7. Patients must have a performance status   8804; 2 on the Eastern  Cooperative Oncology Group  ECOG  scale.  8. Adequate haematological function within 28 days prior to their first rituximab maintenance infusion. This includes     Haemoglobin   8805; 8.0g/dL  5.0 mmol/L     Absolute neutrophil count  ANC    8805; 1.5 x 109/L    Platelet count   8805; 100 x 109/L.  9. Patients must have IgG levels   8805; 2g/L within 28 days prior to  their first rituximab maintenance infusion.  10. Agree to use effective contraception, and agree not to  become pregnant during participation in the study or within 12 months after the last rituximab maintenance infusion. Men agree not to father a child during participation in the study or within 12 months after the last rituximab maintenance infusion. |  | 
| E.4 | Principal exclusion criteria | 
| 1. Patients with poor compliance during induction therapy; judgment is up to investigators  2. Patients who had significant delays / interruptions in their  induction therapy such that completion of the planned rituximab therapy was more than four months longer than the  planned schedule.  3. Stable disease  SD  or progressive disease  PD  after most recent induction therapy.  4. Transformation to high-grade lymphoma  secondary to  low-grade  follicular lymphoma .  5. Presence or history of central nervous system  CNS  lymphomatous disease  e.g. CNS lymphoma or lymphomatous meningitis .  6. Patients regularly taking corticosteroids during the last 4 weeks, unless administered at a dose equivalent to   20 mg/day prednisone.  7. Patients with prior or concomitant malignancies except non-melanoma skin cancer or adequately treated in situ  cervical cancer.  8. Major surgery  excluding lymph node biopsy  within 28 days prior to inclusion.  9. Poor hepatic function  total bilirubin   2.0 mg/dL  34  mol/L , alanine- and aspartate-amino-transferase  ALT, AST    3 x the upper limit of normal  ULN  unless these  abnormalities are related to lymphoma.  10. Patients who have known human immuno-deficiency virus  HIV  infection or active hepatitis B virus  HBV  or hepatitis C virus  HCV  infection.  11. Serious underlying medical conditions, which could impair the ability of the patient to participate in the study  e.g. uncontrolled diabetes mellitus, gastric ulcers, active autoimmune disease, uncontrolled hypertension or pre-existing cardiac condition . Judgment is up to the investigator.  12. Pregnant patients cannot enter the study.    A negative serum pregnancy test is required for women of childbearing potential within seven days prior to first rituximab maintenance therapy infusion.  13. Breast-feeding patients are not permitted to enter the study.  14. Life expectancy of less than 6 months.  15. Known sensitivity or allergy to murine products.  16. Treatment within a clinical study within 30 days prior to study entry.  17. Patient unable to provide informed consent or patients under protection from a guardian.  18. Active Infection requiring treatment, or chronic recurrent  infection e.g. osteomyelitis. |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| safety of rituximab maintenance therapy |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | Yes | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | No | 
| E.6.7 | Pharmacodynamic | No | 
| E.6.8 | Bioequivalence | Information not present in EudraCT | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | Information not present in EudraCT | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | Information not present in EudraCT | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | No | 
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | No | 
| E.8.1.1 | Randomised | No | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | No | 
| E.8.1.5 | Parallel group | No | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | Yes | 
| E.8.1.7.1 | Other trial design description | 
| studio in aperto, non comparativo |  | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT | 
| E.8.2.2 | Placebo | Information not present in EudraCT | 
| E.8.2.3 | Other | Information not present in EudraCT | 
| E.8.3 | The trial involves single site in the Member State concerned | No | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |  | 
| E.8.7 | Trial has a data monitoring committee | Information not present in EudraCT | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 3 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 3 | 
| E.8.9.2 | In all countries concerned by the trial months | 0 |