An observational study in Arthritis, Infectious and Bone Diseases, Infectious, sponsored by Groupe Hospitalier Diaconesses Croix Saint-Simon. Completed at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-02-11.
Sponsored by Groupe Hospitalier Diaconesses Croix Saint-Simon · Observational
Among 13 studies in Arthritis, Infectious with a site in France — 3 open to participants now, 4 under way, none of them phase 3. Arthritis, Infectious · France.
Among the 13 studies in Arthritis, Infectious with a site in France, this one is one of 2 that started in 2015, is one of 9 observational ones, and was the 4th registered.
51 studies on the registry are indexed under Arthritis, Infectious; 12 are open to participants now.
Browse Arthritis, Infectious studies →3 of the 13 studies in Arthritis, Infectious with a site in France are open now. Recruiting first, the newest first:
University Hospital, Brest · Sites in France
Poitiers University Hospital · Sites in France
Ages 18+
Assistance Publique - Hôpitaux de Paris · Sites in France
Ages 18+
A study can be open while its sites in France have not opened yet or have stopped. Only those recruiting at a site in France →
Of the 7 Arthritis, Infectious studies recruiting now, 2 set no upper age limit and 5 stop at 75 or younger; 6 take children under 18; none take healthy volunteers.
This study: 18 Years and older · all sexes · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
13 studies; the count open now beside each. This study's row is marked.
First in 2008; this study’s year is marked. 2 started in 2015.
This study's enrollment of 49 is below the median of 100 across 30 observational studies indexed under Arthritis, Infectious.
Median enrollment 115 across the 4 interventional studies, 100 across the 9 observational. Of the 8 that completed or were terminated, 0 (0%) have results posted.
This tab as a report to print or save as PDF → With an account.
None of the 13 has an industry lead sponsor. The 9 most frequent:
Groupe Hospitalier Diaconesses Croix Saint-Simon is the lead sponsor of 27 studies on the registry; 12 are open to participants now.
Groupe Hospitalier Diaconesses Croix Saint-Simon has 1 study filed under Arthritis, Infectious — fewer than ten, so there is no comparison to draw.
None of the studies under way reaches primary completion within a year.
Among the 13 studies in Arthritis, Infectious with a site in France, from their registry updates:
Nothing recorded among them since 2026-09-25.
This tab as a report to print or save as PDF → With an account.
Treatment of bone and joint infections remains difficult and variable according to centres and countries. Clindamycin given intravenously and followed by an oral route is recommended for the treatment of staphylococcal, streptococcal and anaerobes bone and joint infections by the French Society for Infectious Diseases. For staphylococcal bone and implant infections, rifampin is a major drug, as it remains active in bacterial biofilm and on quiescent staphylococci. For that reasons, clindamycin-rifampin combination therapy is frequently used in these infections.Clindamycin is metabolized by the P450 3A4 cytochrome, an enzyme strongly inducible by rifampin. A retrospective study published in 2010 on 70 patients treated for bone and joint infections showed that clindamycin serum concentrations were significantly lower when clindamycin was combined with rifampin (5.3 mg/liter vs 8.9 mg/liter; p\<0.02). This drug interaction could even be stronger with the oral route, because of hepatic first-past effect, ending up with very low clindamycin serum concentration, a risk of selecting resistant microorganisms and treatment failure. This latter point is an important issue, because clindamycin has an excellent oral bioavailability and is frequently used in oral regimens. In the above study, a wide variability of clindamycin serum concentration was observed in the group of patients treated with combination therapy (1-12mg/l) suggesting interindividual variability. Rifampin induction of CYP 450 3A4/A5 depends on different receptor (PXR, RXR, LXRalpha) submitted to genetic polymorphism. Hypothesis: Plasma clearance of clindamycin (CLclin) combined with rifampicin (CLclinrif) is higher when clindamycin is administered by the oral route (CLclinrif OR) compared with IV administration (CLclinrif IV).
patients hospitalized for medical-surgical management of OAIs in the Department of Trauma and Bone Surgery
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
CYP3A (CYP3A4) inhibitors and inducers
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
INR, PT and aPTT (clotting tests)
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
DSM diagnostic criteria
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
pharmacological studies in patients treated with usual antibiotics, for different types of joint and bone infections
mean clearances of clindamycin
The principal evaluation criterion is the mean clearances of clindamycin with and without administration of rifampin (intravenous or oral administration)
Time frame: 3 weeks
mean clearances of clindamycin
The principal evaluation criterion is the mean clearances of clindamycin with and without administration of rifampin (intravenous or oral administration)
Time frame: 5 weeks
plasma concentrations of IV- or PO-administered clindamycin, combined or not with rifampin.
Time frame: 3 weeks
plasma concentrations of IV- or PO-administered clindamycin, combined or not
Time frame: 5 weeks
Ran from Dec 2015 to primary completion in Dec 2019, 48 months.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Feb 2021. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Groupe Hospitalier Diaconesses Croix Saint-Simon