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PubMed1998

Enterovirus-associated haemophagocytic syndrome in a neonate.

A 3-d-old neonate presented with fever, hepatosplenomegaly, coagulopathy, thrombopenia and anaemia. Secondary haemophagocytic lymphohistiocytosis was suspected, as persistent cytopenias were associated with hypofibrinogenaemia, haemophagocytosis in bone marrow and decreased NK cell. There was no positive family lymphohistiocytosis history or parental consanguinity. Bacterial investigation proved negative. The diagnosis of enterovirus maternofoetal infection was carried out. The infant's condition improved with symptomatic therapy from day 7. Follow up at 1 y was normal without relapse. This is the first report of a neonatal enteroviral infection that was responsible for excessive macrophage activation.

Enterovirus Infections↗
PubMed2002

A three-arm phase III randomised trial comparing combinations of platinum derivatives, ifosfamide and/or gemcitabine in stage IV non-small-cell lung cancer.

OBJECTIVE: To determine, in stage IV non-small-cell lung cancer (NSCLC), if the combination of gemcitabine-a new active drug-with ifosfamide (IG) or with the cisplatin-carboplatin association (CCG) will improve survival (primary end point) in comparison with a first-generation regimen, cisplatin-carboplatin-ifosfamide (CCI). PATIENTS AND METHODS: A total of 284 chemotherapy-naïve patients with metastatic NSCLC were randomised. Four were ineligible and 16 were not assessable for responses. Cisplatin was given at 60 mg/m2 on day 1, carboplatin AUC 3 mg.min/ml on day 1, ifosfamide 4.5 g/m2 on day 1 and gemcitabine 1 g/m2 on days 1, 8 and 15. Courses were repeated every 4 weeks. Response was assessed after three courses and chemotherapy was continued in responding patients until best response. There were 94 eligible patients in the CCI arm, 92 in CCG and 94 in the IG arm. RESULTS: The objective response rates for CCI, CCG and IG were 23% [95% confidence interval (CI) 15% to 32%], 29% (95% CI 20% to 39%) and 25% (95% CI 16% to 33%), respectively ( P = 0.61). Median survival time was 24, 34 and 30 weeks, respectively (P = 0.20). One-year survival was 23, 33 and 35%, and 2-year survival was 11, 14 and 17%, respectively. In some subgroups (older patients, women), there was a significant survival advantage for CCG and IG compared with CCI. Toxicity was tolerable: severe alopecia was less frequent in the CCG arm, and IG was associated with significantly more thrombopenia while CCG was associated with more leucopenia. CONCLUSION: In stage IV NSCLC, treatment with regimens including the new drug gemcitabine were associated with a better but not statistically significant observed survival compared with a classical first-generation cisplatin-containing regimen. The non-platinum combination of gemcitabine was as effective as its combination with platinum.

Adult↗
PubMed2003

A phase II study of cisplatin, etoposide and gemcitabine in an unfavourable group of patients with carcinoma of unknown primary site.

BACKGROUND: The aim of this phase II study was to determine toxicity, response rate, time to progression, and overall survival of cisplatin, etoposide and gemcitabine in patients with carcinoma of unknown primary tumour site. PATIENTS AND METHODS: Thirty patients with no previous chemotherapy and not belonging to a treatable group were treated with cisplatin 70 mg/m(2) on day 1, etoposide 70 mg/m(2) on days 1 and 2, and gemcitabine 700 mg m(2) on days 1 and 8, administered every 3 weeks. Stable or responding patients received a maximum of eight cycles. Twenty patients (67%) had more than three affected sites, and 25 patients (84%) had adenocarcinomas. RESULTS: Overall response rate was 36.6% (11 patients), including four complete responses (13.3%) and seven partial responses (23.3%), with a 95% confidence interval of 19.9-56. Median survival was 7.21 months and eight patients remained alive for >1 year. Myelosuppression was the most important toxicity, with grade 3-4 neutropenia in 18 patients (60%) in 32% of the cycles: eight patients had neutropenic fever and 10 patients had thrombopenia in 11% of cycles. No non-haematological grade 4 toxicity occurred. CONCLUSIONS: Cisplatin, etoposide and gemcitabine is an active combination, inducing objective responses in a subset of heavily advanced disease patients with carcinoma of unknown primary site. The role of adding gemcitabine to cisplatin and etoposide remains to be resolved as to the best schedule to diminish toxicity for the three-drug combination.

Adult↗
PubMed2004

Phase II trial of cisplatin and gemcitabine in patients with advanced gastric cancer.

BACKGROUND: This phase II study was performed to determine the efficacy and toxicity of cisplatin and gemcitabine in patients with advanced gastric cancer. PATIENTS AND METHODS: Forty chemo-naïve patients with measurable locoregionally advanced or metastatic gastric cancer were included; the median patient age was 53 years (range 35-71). Cisplatin was administered at a dose of 50 mg/m2, given in 1 h intravenously (i.v.) on days 1 and 8, followed after 24 h by gemcitabine at a dose of 800 mg/m2 given in 30 min i.v. on days 2, 9 and 16, every 28 days. RESULTS: A median number of four therapy cycles were given (range 2-8). Myelosuppresion was the most important toxicity. Grade 3-4 thrombopenia was observed in 19 patients (48%) and grade 3-4 leukopenia was observed in 23 (58%). Myelotoxicity was cumulative and caused omission of gemcitabine on day 16 in 55% of cycles. Non-haematological toxicity consisted mainly of grade 1-2 nausea and vomiting. Objective responses were observed in 30% of patients including two complete remissions and 10 partial remissions. Median survival was 11 months (range 3-27+). CONCLUSIONS: This cisplatin-gemcitabine regimen had moderate efficacy in patients with advanced gastric cancer, with manageable toxicity. Further studies with this combination may be warranted.

Adenocarcinoma↗
PubMed2006

A randomized phase II trial of irinotecan plus carboplatin versus etoposide plus carboplatin treatment in patients with extended disease small-cell lung cancer.

BACKGROUND: Superiority of irinotecan/cisplatin over etoposide/cisplatin was suggested in small-cell lung cancer (SCLC). This trial investigated irinotecan/carboplatin (IP) versus etoposide/carboplatin (EP). PATIENTS AND METHODS: The interim analysis at the phase II/phase III transition point of the multicenter trial is reported. Extensive disease SCLC patients were randomized to receive carboplatin AUC 5 mg x min/ml either in combination with 50 mg/m2 of irinotecan on days 1, 8 and 15 (IP) or with etoposide 140 mg/m2 days 1-3 (EP). The primary end point was response rate and the secondary end points were toxicity and progression-free survival. RESULTS: Seventy patients were randomized. Significant differences in grade 3 and 4 thrombopenia (17% IP versus 48% EP, P = 0.01) and neutropenia (26% IP versus 51% PE, P < 0.01) were found. Grade 3 and 4 diarrhea was more frequent with IP (18%) than with EP (6%) (P = 0.133). Response rates were 67% and 59% (P = 0.24) in the IP versus EP arm, respectively. Median progression-free survival (PFS) was 9 months (95% CI 7.1-10.9) in the IP arm and 6 months (95% CI 4.1-7.9) in the EP arm (P = 0.03). CONCLUSIONS: IP is active, less toxic and appears to improve PFS. Based on the phase II results the trial has been extended to phase III to assess the impact on overall survival.

Adult↗
PubMed2006

Long-term results of a multicenter SAKK trial on high-dose ifosfamide and doxorubicin in advanced or metastatic gynecologic sarcomas.

BACKGROUND: Dose intensive chemotherapy has not been tested prospectively for the treatment of gynecologic sarcomas. We investigated the antitumor activity and toxicity of high-dose ifosfamide and doxorubicin, in the context of a multidisciplinary strategy for the treatment of advanced and metastatic, not pretreated, gynecologic sarcomas. PATIENTS AND METHODS: Thirty-nine patients were enrolled onto a phase I-II multicenter trial of ifosfamide, 10 g/m2 as a continuous infusion over 5 days, plus doxorubicin intravenously, 25 mg/m2/day for 3 days with Mesna and granulocyte-colony-stimulating factor every 21 days. Salvage therapy was allowed after chemotherapy. RESULTS: Among the 37 evaluable patients, the tumor was locally advanced (n = 11), with concomitant distant metastases (n = 5) or with distant metastases only (n = 21). After a median of three (range 1-7) chemotherapy cycles, six patients experienced a complete response and 12 a partial response for an overall response rate of 49% (95% CI 32% to 66%). The response rate was higher in poorly differentiated tumors (62%) compared with moderately well differentiated ones (18%), but was not different according to histology subtypes. Eleven patients had salvage therapy, either immediately following chemotherapy (n = 7) or at time of progression (n = 4). With a median follow-up time of 5 years, the median overall survival was 30.5 months. Hematological toxicity was as expected neutropenia, thrombopenia and anemia > or = grade 3 at 50%, 34% and 33% of cycles respectively. No toxic death occurred. CONCLUSIONS: High-dose ifosfamide plus doxorubicin is an active regimen for all subtypes of gynecological sarcomas. Its toxicity was manageable in a multicentric setting. The prolonged survival might be due to the multidisciplinary strategy that was possible in one-third of the patients.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed2006

Phase II trial of temozolomide and cisplatin followed by whole brain radiotherapy in non-small-cell lung cancer patients with brain metastases: a GLOT-GFPC study.

BACKGROUND: Brain metastases (BM) considerably worsen the prognosis of non-small-cell lung cancer (NSCLC) patients. The usefulness and choice of chemotherapy remain uncertain in this indication since these patients are excluded from most clinical trials. We conducted a phase II study to determine the efficacy and tolerability of up-front chemotherapy with association of temozolomide and cisplatin in NSCLC patients with BM. PATIENTS AND METHODS: Fifty NSCLC patients with BM received temozolomide (200 mg/m(2)/day for 5 days every 28 days) and cisplatin (75 mg/m(2) at day 1 of each cycle), up to six cycles, followed by whole brain radiotherapy (WBRT). An evaluation was carried out every two cycles and after WBRT. WBRT was performed earlier in case of progressive disease at any time or stable disease after cycle 4. RESULTS: Eight objective responses were achieved (16%). Overall median survival was 5 months. Median time to progression was 2.3 months. Ten patients (20%) presented a grade 3/4 neutropenia and 11 patients (22%) presented a grade 3/4 thrombopenia. CONCLUSION: This study demonstrates a lack of efficacy of up-front chemotherapy with association of temozolomide and cisplatin in these patients. Nevertheless, it supports the feasibility of chemotherapy before brain radiotherapy in NSCLC patients with BM.

Adult↗
PubMed1985

Induction of the early hypotensive phase by Escherichia coli: role of bacterial surface structures and inflammatory mediators.

An early hypotensive phase was induced in rats by different strains of Escherichia coli and cell wall fractions to study the role of the bacterial surface structure, the complement system, histamine, and serotonin in induction of hypotension. E. coli strains with only core glycolipid (E. coli strain J5) or with intact lipopolysaccharide O antigens on their surface induced hypotension and thrombopenia within 5 min after intravenous administration. This response was reduced by prior decomplementation of the rats and by methysergide, a serotonin antagonist. Two K antigen-positive strains induced no hypotension except after removal of K antigen. The isolated lipopolysaccharide fractions and the lipid A subfractions, but not the polysaccharide subfractions, were also able to induce hypotension. Thus the core glycolipid structure, by interactions that involve platelets and the complement system, is mainly responsible for induction of an early hypotensive phase in rats, and K antigens interfere with this response.

Animals↗
PubMed1992

Considerable side effects of chemoembolization for colorectal carcinoma metastatic to the liver.

The feasibility of one whole liver chemoembolization (CE) procedure with Angiostat, a vasoocclusive collagen, mitomycin, doxorubicin, and cisplatin was evaluated in eight patients with unresectable colorectal carcinoma metastatic to the liver and good performance status. One heavily pretreated patient showed a partial response in the liver lasting 188 days. Five patients had stabilization of the disease for 85-150 days. The side effects of the treatment were considerable with a fatigue syndrome lasting up to eight weeks, chemical and ischemic hepatitis, severe thrombopenia (WHO grade 4 in 2 pts) and icterus being the most disturbing toxicities. We recommend to restrict CE to patients with a life expectancy of more than 4-6 months confined to protocols, which evaluate efficacy, toxicity and influence on quality of life of CE with various cytotoxic drugs. We further suggest to perform staged unilobar CE at 4- to 6-week intervals rather than whole liver CE.

Adult↗
PubMed1994

Phase II study with docetaxel (Taxotere) in advanced soft tissue sarcomas of the adult. EORTC Soft Tissue and Bone Sarcoma Group.

BACKGROUND: Current regimens for treatment of distant metastases of soft tissues sarcomas result in response rates of about 25%. Therefore the search for active drugs remains a task for investigational groups. Taxoids offer a new class of cytostatic drugs. Docetaxel has been studied as a second line chemotherapy in advanced soft tissue sarcomas of the adult. PATIENTS AND METHODS: In a multi-center non-randomized phase II study docetaxel was administered at a dose of 100 mg/m2 in a 1-hour i.v. infusion q 3 weeks. RESULTS: Twenty-nine patients (pts), median age 52 yr, performance status WHO 0: 16 pts, WHO 1: 11 pts, WHO 2: 2 pts, were eligible. One patient had early death due to malignant disease, 1 patient died due to toxicity and progression, 1 pt refused after 1 course. Five partial responses (5/29 = 17%, C.I. 6%-36%) have been observed. Grade > or = 3 leucopenia occurred in 76% of patients and grade > or = 3 thrombopenia did not occur. Median nadir of neutrophils was 0.23 x 10(9)/l. Episodes of fever and documented infection have been observed in 10 and 5 pts respectively. Anaphylactoid type reactions occurred in 5 patients: ranging from flushing in 5 pts to cardiovascular symptoms in 1 pt. Sensory neurotoxicity was observed in 14 pts grade 1: 10 pts, grade 2: 3 pts, grade 3: 1 pt). Grade 1 motor neurotoxicity was experienced by 3 pts. Skin reactions (pruritus, erythema, urticaria, exfoliation grade 1: 11 pts, grade 2: 7 pts, grade 3: 1 pt, grade 4: 1 pt) in 20 pts, among them 9 patients with nail changes. Peripheral edema and fluid retention has been observed in 12 pts. CONCLUSION: Taxotere has activity in adult soft tissue sarcoma in second line, warranting studies on first line efficacy.

Adult↗
PubMed1990

Phase II study of oral idarubicin in elderly patients with advanced breast cancer.

Thirty-one elderly patients with measurable advanced breast cancer entered this phase II study. A dose of 15 mg/m2/day of Idarubicin (IDA) for 3 consecutive days every 3 weeks was given orally. Mean total cumulative dose of IDA received was 175 mg/m2 (range: 45-475 mg/m2). Mean number of cycles given was four (range: 1-15). Out of 27 evaluable patients, three achieved a complete response (CR), four had a partial response (PR) (CR + PR = 26 +/- 17%), nine showed no change, and 11 had a progressive disease. Median time to progression was 83 days (range: 19-728 days). Out of 26 patients evaluable for toxicity, hematologic toxicity at day 21 was moderate: neutropenia grades 3 and 4 = 16% of cycles: two patients had grade 1 thrombopenia; and three patients, grade 3. No cumulative hematologic toxicity was detected. Nonhematologic toxicities consisted of nausea and vomiting in 72% of patients [World Health Organization (WHO) grades 3 and 4 = 8%)] and alopecia in 76% (WHO grades 2-3 = 38%). Grade 1 stomatitis occurred in 4% of cycles. Chemotherapy was discontinued in one patient because of drop of left ventricular ejection fraction (LVEF) from 0.62 to 0.44 at a cumulative IDA dosage of 322 mg/m2. The results of this study show that IDA is an active drug in elderly patients with advanced breast cancer. Due to its simplicity of administration IDA deserves further investigations in combination with other drugs.

Administration, Oral↗
PubMed1990

Association of bolus tetrahydropyranyl adriamycin and 120 hours continuous 5-fluorouracil infusion in patients with metastatic breast cancer.

4'-O-Tetrahydropyranyl adriamycin (THP adriamycin) is a new anthracycline active as a single drug in advanced breast cancer. We have undertaken a phase II study as first-line treatment for metastatic disease with THP adriamycin day 1 = 40 mg/m2 i.v. bolus and 5-fluorouracil day 1 to day 5 = 750 mg/m2 as a continuous i.v. infusion. The dose of THP adriamycin was further escalated up to the maximal tolerated dose defined as grade 3 granulopenia for each patient. Thirty-nine patients were included, 37 being so far evaluable for toxicity and for efficacy. The mean number of cycles given was 5 (range: 2-12). The overall response rate (CR + PR) was 54% (95% CI: 37.9-70.1) and the CR rate 8%. Sites of response were as follows: lung 6/9, liver 11/18, breast 4/8, nodes 7/14, skin 3/8, bone 2/8. Neutropenia with grade 3 + 4 nadir values was observed in 70.2% of the patients according to the objective of the study. No severe thrombopenia or anemia occurred. Stomatitis grade 3 was seen in 27% and grade 4 in 3% of the patients. Alopecia grade 2 was seen in 18% and grade 3 in 9%. No other toxicity was observed. We conclude that this association is effective in metastatic breast cancer, giving few alopecia. A high response rate in liver metastases warrants further evaluation.

Adenocarcinoma↗
PubMed1991

Fotemustine (S 10036) in the intra-arterial treatment of liver metastasis from malignant melanoma. A phase II Study.

Fotemustine is a new nitrosourea which has shown some efficacy on disseminated malignant melanoma (DMM) (24.2% response rate (RR) among 153 patients in a Phase II trial) but little activity on hepatic metastasis (8.8% RR). In order to improve those poor results, hepatic intra-arterial infusion (HIAI) of fotemustine was performed. After two years, thirteen patients, all in good general condition, were evaluable. Seven were pretreated and six had extrahepatic metastasis on entry into the study. All patients had a surgically implanted intra-arterial catheter. The induction cycle consisted of 100 mg/m2/week for 3-4 weeks, followed by 5 weeks rest and maintenance therapy of 100 mg/m2 every 3 weeks for stabilized or responding patients. Two complete responses (CR) (72+ and 145+ weeks) and six partial responses (PR) (7-18.5 weeks) were observed. The hepatic RR reached 61.5%. A RR of 42.8% was registered on preexisting EHM (one CR and one PR on cerebral lesions). Nevertheless, this treatment is limited by the high progression rate of 46.1% in extrahepatic disease. Toxicity was mainly hematologic (grade III-IV), comprising 36% neutropenia and 15% thrombopenia. Hepatic intra-arterial infusion of fotemustine is efficient therapy for liver metastases of DMM, but combination schedules (IV + HIA) are warranted.

Adult↗
PubMed1998

Cisplatin, ifosfamide, and vinorelbine combination chemotherapy in stage III-IV non-small-cell lung cancer: a phase II study.

The authors evaluate the combination of three drugs, vinorelbine, ifosfamide, and cisplatin, which have been shown to produce good response rates and a significant gain in survival when any two of them are given together. Seventy-seven untreated patients with inoperable stage III-IV non-small-cell lung cancer from three centers were included. The combination consisted of cisplatin 30 mg/m2 daily, ifosfamide 1,500 mg/m2 daily, mesna 1,500 mg/m2 daily on days 1-3, and vinorelbine 25 mg/m2 daily on days 1 and 8. Four cycles were administered every 4 weeks for a total of 267 cycles, before an assessment for toxicity, effective dose intensity, response rate, and survival was made. Toxicity was mainly hematologic (grade 3-4 neutropenia (15.7%), anemia (8.2%), and thrombopenia (2.6%)) but did not require granulocyte colony-stimulating factors. Objective response rate was 41.1% (95% confidence interval, 29.5-52.9%) in 68 patients suitable for assessment. The mean time to progression and median survival were 7.7 +/- 1.3 months and 11.6 months, respectively. One-year survival was 47.1%. The effective dose intensity of cisplatin and ifosfamide correlated strongly with survival, whereas stage and performance status did not. This study confirms previously reported favorable results for response and survival rates obtained in stage III-IV non-small-cell lung cancer with the vinorelbine, ifosfamide, and cisplatin combination. Respect of a scheduled dose intensity has a clear-cut influence on survival and should be evaluated routinely in future polychemotherapy trials.

Adult↗
PubMed2001

Epirubicin--docetaxel combination in first-line chemotherapy for patients with metastatic breast cancer: final results of a dose-finding and efficacy study.

The aim of the study was to define a regular and tolerable dose of the epirubicin-docetaxel combination in first-line chemotherapy of patients with metastatic breast cancer. Sixty-five women with measurable and/or evaluable disease were treated with epirubicin escalated from 60 to 110 mg/m(2) according to 5 dose levels, in combination with a fixed dose of 75 mg/m(2) docetaxel, every 21 days for 6 cycles, without preventive use of hematopoietic growth factors or antibiotics. Forty-three women received adjuvant chemotherapy, consisting of anthracyline- or anthracenedione-based regimens in 39 cases (60%). Twenty-seven women were treated in the phase I study (3 at epirubicin 60 mg/m(2), and 6 at each subsequent dose level). Dose-limiting toxicity consisted of grade III asthenia and febrile neutropenia (epirubicin 75 mg/m(2)), grade IV thrombopenia and grade III asthenia (epirubicin 90 mg/m(2)), grade IV stomatitis and grade III diarrhea (epirubicin 100 mg/m(2)), and grade III diarrhea (epirubicin 110 mg/m(2)). In the phase II study, an additional 38 women were treated at epirubicin 90 mg/m(2) and epirubicin 100 mg/m(2). During the 349 cycles delivered, grade IV neutropenia occurred in 90%; febrile neutropenia requiring hospitalization occurred in 62 (17.8%) and lasted more than 3 days in 12 (3.4%). Nonhematologic toxicity was acceptable. Three left ventricular ejection fraction depressions occurred and normalized during follow-up. The overall response rate in the 62 evaluable women was 69.4% (range: 58--81%), with a median duration of 7.8 months. After 26 months of follow-up, the median time to progression was 9.1 months and median overall survival was 22.7 months. On the basis of efficacy and toxicity, the recommended dose of the combination is epirubicin 100 mg/m(2) plus docetaxel 75 mg/m(2).

Adult↗
PubMed2001

Pharmacokinetics of paclitaxel and cisplatin in a hemodialysis patient with recurrent ovarian cancer.

This is the first report that the combination of paclitaxel and cisplatin is feasible in a patient with recurrent ovarian cancer undergoing hemodialysis. Paclitaxel at a dose of 150 mg/m(2) was administered as a 3-h continuous i.v. infusion. Thirty minutes after paclitaxel administration, cisplatin was administered at a dose of 30 mg/m(2) for 30 min. Hemodialysis was started 30 min after completion of the cisplatin infusion and performed for 5 h. The maximum plasma concentrations of paclitaxel, total platinum and free platinum were 3.26, 2.44 and 1.84 microg/ml, respectively. The AUC of paclitaxel and free platinum were 15.3 and 1.76 microg x h/ml, respectively. The pelvic tumor size was reduced by 42% on MRI after the second course of this therapy. Grade IV neutropenia and grade III thrombopenia were observed. We conclude that paclitaxel and cisplatin combination chemotherapy is efficacious and feasible for an ovarian cancer patient under hemodialysis.

Antineoplastic Combined Chemotherapy Protocols↗
PubMedDate not supplied

Prevention by ticlopidine of platelet consumption during extracorporeal circulation for heart surgery and lack of effect on operative and postoperative bleeding.

We studied the effects of ticlopidine, a platelet antiaggregant drug, on platelet consumption during and after extracorporeal circulation (ECC) and on the operative and postoperative blood loss in a double-blind, placebo-controlled trial on 20 patients who underwent open-heart surgery for implantation of a valvular prosthesis. We monitored the changes in platelet count during and after ECC, the need for platelet transfusions to compensate for excessive consumption, and the operative and postoperative blood loss. We also followed the cephalin-kaolin time, the prothrombin time, the fibrinogen level, the fibrin/fibrinogen degradation products, and the euglobulin lysis time. Ticlopidine effectively reduced operative and post-ECC thrombopenia and prolonged the bleeding time. Apart from these changes, no differences in coagulation tests were observed between the ticlopidine-treated group and the placebo group. No side effects were observed. There was no significant difference between the groups concerning operative and postoperative blood loss, indicating that ticlopidine does not induce a hemorrhagic diathesis. Ticlopidine therapy may be of value during the first postoperative days because it prevents clotting on valvular prosthesis and complications such as systemic embolization. However, more trials and controlled studies are needed before such therapy can be recommended for routine use.

Adult↗
PubMed1982

Impaired clot retraction in thrombocytopenia due to methyldopa.

We have described a case of thrombocytopenic purpura caused by methyldopa. A methyldopa-dependent antiplatelet antibody as the mechanism of the patient's thrombopenia was suggested by a positive clot retraction inhibition test. This simple in vitro test should be done more often in suspected cases of drug-induced thrombocytopenia.

Clot Retraction↗