| Enrolling By Invitation | BCG Revaccination With the Third Dose of Diphtheria-tetanus-pertussis Vaccine and Infant Mortality in Africa Infant Morbidity, Infant Mortality, Non-Specific Effects of Vaccines | Phase 4 | 2025-05-09 |
| Unknown | The Non-Specific Immunological Effects of Providing Oral Polio Vaccine to Seniors in Guinea-Bissau Vaccine Reaction | Phase 4 | 2024-01-29 |
| Active Not Recruiting | Diabetes Diagnosis, Management, Prevention and Education in Guinea-Bissau Diabetes Mellitus, BCG Vaccination Reaction | Phase 4 | 2023-12-01 |
| Unknown | Trial to Compare BCG-Bulgaria and BCG-Denmark Death; Neonatal, Death, Infant, Morbidity;Newborn | Phase 4 | 2022-10-21 |
| Recruiting | Measles and BCG Vaccines for Mother and Child Vaccine Preventable Disease, Measles, Mother-Infant Interaction | Phase 4 | 2021-05-20 |
| Active Not Recruiting | Can BCG Vaccination at First Health-facility Contact Reduce Early Infant Mortality? Infant Mortality, BCG | Phase 4 | 2021-02-25 |
| Completed | Using BCG to Protect Senior Citizens During the COVID-19 Pandemic Covid19, Non-specific Effects of Vaccines, Heterologous Immunity | Phase 3 | 2020-09-15 |
| Unknown | Locally Produced Cloth Face Mask and COVID-19 Like Illness Prevention COVID-19, Respiratory Illness | N/A | 2020-07-20 |
| Completed | OPV as Potential Protection Against COVID-19 Poliovirus Vaccine, Oral, COVID, Mortality | Phase 4 | 2020-07-15 |
| Completed | Using BCG Vaccine to Protect Health Care Workers in the COVID-19 Pandemic COVID-19, Non-specific Effects of Vaccines, Morbidity | Phase 3 | 2020-05-18 |
| Completed | Trial to Compare Two Strains of BCG Death, Infant, Morbidity;Infant | Phase 4 | 2020-05-04 |
| Enrolling By Invitation | Measles Vaccination at Health System Contacts Measles Vaccine, Hospital Admission, Mortality | Phase 4 | 2020-01-08 |
| Completed | Comparing Morbidity and Mortality Effects of Two Different Strains of BCG Heterologous Immunity, Infant Morbidity, Infant Mortality | Phase 4 | 2017-10-14 |
| Completed | Low Birth Weight Follow-up Non Specific Effects of Vaccine, Bacillus-Calmette-Guerin, Low Birth Weight | — | 2017-02-15 |
| Completed | Testing if BCG (Bacille Calmette-Guérin) Vaccination Can Induce Innate Immune Training in Adult People Above 5 Innate Immunity, Bacille Calmette-Guérin | Phase 4 | 2017-02-01 |
| Completed | Vaccine Campaign Effects on General Hospital Admissions and Mortality Among Children Measles Vaccination, Oral Polio Vaccine, Non-specific/Heterologous Effects of Vaccines | Phase 4 | 2016-11-01 |
| Completed | A Second Dose of Measles Vaccine (MV) in the Second Year of Life Child Mortality, Child Morbidity | N/A | 2016-10-01 |
| Unknown | mHealth to Increase Measles Immunization - a Randomized Controlled Trial in Guinea-Bissau Measles | N/A | 2016-03-01 |
| Terminated | Can Earlier BCG Vaccination Reduce Early Infant Mortality? A Randomised Trial Infant Mortality, BCG | Phase 4 | 2015-11-01 |
| Completed | Effectiveness and Safety of Artemether + Lumefantrine and Dihydroartemisinin + Piperaquine for Treating Malari Malaria, Effectiveness | Phase 4 | 2015-08-01 |
| Completed | Trial of Two Strains of BCG Morbidity, Bacille Calmette-Guérin | Phase 4 | 2014-12-08 |
| Terminated | A Randomized Trial of Providing BCG Vaccination Immediately Early Neonatal Mortality | Phase 4 | 2013-10-01 |
| Completed | Trial of Additional Measles Vaccine to Reduce Child Mortality. Burkina Faso. Measles Vaccine | Phase 4 | 2013-05-03 |
| Completed | Pharmacokinetic Study of Multi-dose Chloroquine Malaria | Phase 4 | 2013-04-01 |
| Unknown | Vitamin A Supplementation at Birth and Atopy in Childhood Atopy, Asthma, Eczema | — | 2013-01-01 |
| Completed | Improving Anti-malarial Treatment Options in Guinea-Bissau - Part A Malaria | Phase 4 | 2012-11-01 |
| Completed | Trial of Additional Measles Vaccine to Reduce Child Mortality Measles Vaccine | Phase 4 | 2012-07-01 |
| Completed | Bacille Calmette-Guérin (BCG) Vaccine and Atopy Asthma, Eczema, Food Hypersensitivity | — | 2011-10-01 |
| Unknown | Additional Measles Vaccine at 4 Months of Age Measles Infection | Phase 4 | 2011-08-01 |
| Completed | The Effect on Overall Mortality of a National Policy of Limiting Measles Vaccination to Children Below 12 Mont Mortality, Vaccines | Phase 4 | 2011-02-01 |
| Completed | Etiology of Diarrhea in Guinea-Bissau and in Finland Diarrhea | — | 2010-11-01 |
| Completed | Artemether-Lumefantrine Effectiveness in Guinea-Bissau 2 Malaria | — | 2010-05-01 |
| Completed | Artemether-Lumefantrine Effectiveness in Guinea-Bissau Malaria | — | 2010-03-01 |
| Unknown | Investigating the Mortality and the Morbidity Impact of Oral Polio Vaccine at Birth Infant, Newborn, Healthy | N/A | 2008-07-01 |
| Completed | Sex-Differential Health Interventions In Low-Birth-Weight Infants Mortality, Morbidity, Growth | N/A | 2008-02-01 |
| Terminated | Impact of the WHO Recommended Vitamin A Supplementation at Immunisation Contacts Mortality, Morbidity | Phase 4 | 2007-08-01 |
| Unknown | Perinatal Hypothermia, Risk Factors and Long-Term Consequences in Guinea-Bissau, Westafrica Hypothermia, Morbidity, Mortality | N/A | 2007-01-01 |
| Completed | Chloroquine and Coartem for Treatment of Symptomatic Children With Plasmodium Falciparum in Guinea Bissau Malaria, Falciparum | Phase 4 | 2006-12-01 |
| Completed | Immunology of Non-specific Effects of Vaccine Measles, Diphtheria, Tetanus | Phase 4 | 2006-01-01 |
| Completed | Randomized Study of Not Giving Diphteria-tetanus-pertussis Vaccination With or After Measles Vaccination Mortality, Hospitalization, Adverse Events | Phase 4 | 2005-10-01 |
| Unknown | Vitamin A and Response to Endotoxin TNF-alfa, Endotoxin Levels | N/A | 2005-06-01 |
| Completed | Improved Management and in-Hospital Mortality Mortality, Malaria | N/A | 2004-12-01 |
| Unknown | Vitamin A Supplementation With Bacille Calmette Guerin (BCG) Vaccine Infant Mortality, Morbidity | Phase 4 | 2004-11-01 |
| Completed | Different Doses of Vitamin A Supplementation and Male and Female Morbidity and Mortality Mortality, Morbidity | Phase 4 | 2004-11-01 |
| Unknown | The Effect of Paracetamol in the Treatment of Non-severe Malaria in Children in Guinea-Bissau Malaria, Falciparum | Phase 4 | 2004-05-01 |
| Unknown | Vitamin A Supplementation With Routine Childhood Vaccines and Mortality and Morbidity Mortality, Morbidity | Phase 4 | 2003-11-01 |
| Completed | Early Two-dose Measles Vaccination Trial Measles | Phase 4 | 2003-07-01 |
| Completed | Should Low Birth Weight Infants Be Vaccinated With BCG Vaccine at Birth in Developing Countries? Tuberculosis | Phase 4 | 2002-11-01 |
| Completed | Different Doses of Vitamin A and Childhood Morbidity and Mortality Mortality, Morbidity | Phase 4 | 2002-11-01 |
| Completed | Vitamin A With BCG Vaccine Mortality, Morbidity | Phase 4 | 2002-08-01 |
| Terminated | Revaccination of Young Children With Bacille Calmette Guerin (BCG) Vaccine Malaria | Phase 4 | 2002-07-01 |
| Completed | Long-term Follow-up of Measles Antibodies Measles | Phase 4 | 2002-03-01 |
| Completed | The Efficacy of Re-treatment With Sulfadoxine-pyrimethamine in Children Malaria, Falciparum | Phase 4 | 2001-05-01 |
| Completed | Chloroquine and Amodiaquine for Treatment of Malaria in Children Malaria, Falciparum | Phase 4 | 2001-03-01 |
| Completed | Prenatal Multi-micronutrient Supplementation and Pregnancy Outcome Pregnancy, Birth Weight | Phase 1 | 2001-01-01 |
| Completed | Impact of Exclusive Breast-Feeding in Guinea Bissau Nutritional Status | Phase 4 | 2000-03-01 |
| Completed | Prophylactic Antibiotics in Measles Post-Measles Pneumonia, Measles | Phase 3 | 1998-01-01 |
| Completed | Does Timeliness of DTaP-IPV-Hib Vaccination Affect Development of Atopic Dermatitis Before 1 Year of Age? Atopic Dermatitis | — | 1997-01-01 |
| Completed | Non-Specific Effects of Standard Titre Measles Vaccination Measles | Phase 4 | 1995-03-01 |